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Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse Source 
Pull x86 asm updates from Ingo Molnar:
 "The main changes in this cycle were:

   - Cross-arch changes to move the linker sections for NOTES and
     EXCEPTION_TABLE into the RO_DATA area, where they belong on most
     architectures. (Kees Cook)

   - Switch the x86 linker fill byte from x90 (NOP) to 0xcc (INT3), to
     trap jumps into the middle of those padding areas instead of
     sliding execution. (Kees Cook)

   - A thorough cleanup of symbol definitions within x86 assembler code.
     The rather randomly named macros got streamlined around a
     (hopefully) straightforward naming scheme:

        SYM_START(name, linkage, align...)
        SYM_END(name, sym_type)

        SYM_FUNC_START(name)
        SYM_FUNC_END(name)

        SYM_CODE_START(name)
        SYM_CODE_END(name)

        SYM_DATA_START(name)
        SYM_DATA_END(name)

     etc - with about three times of these basic primitives with some
     label, local symbol or attribute variant, expressed via postfixes.

     No change in functionality intended. (Jiri Slaby)

   - Misc other changes, cleanups and smaller fixes"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (67 commits)
  x86/entry/64: Remove pointless jump in paranoid_exit
  x86/entry/32: Remove unused resume_userspace label
  x86/build/vdso: Remove meaningless CFLAGS_REMOVE_*.o
  m68k: Convert missed RODATA to RO_DATA
  x86/vmlinux: Use INT3 instead of NOP for linker fill bytes
  x86/mm: Report actual image regions in /proc/iomem
  x86/mm: Report which part of kernel image is freed
  x86/mm: Remove redundant address-of operators on addresses
  xtensa: Move EXCEPTION_TABLE to RO_DATA segment
  powerpc: Move EXCEPTION_TABLE to RO_DATA segment
  parisc: Move EXCEPTION_TABLE to RO_DATA segment
  microblaze: Move EXCEPTION_TABLE to RO_DATA segment
  ia64: Move EXCEPTION_TABLE to RO_DATA segment
  h8300: Move EXCEPTION_TABLE to RO_DATA segment
  c6x: Move EXCEPTION_TABLE to RO_DATA segment
  arm64: Move EXCEPTION_TABLE to RO_DATA segment
  alpha: Move EXCEPTION_TABLE to RO_DATA segment
  x86/vmlinux: Move EXCEPTION_TABLE to RO_DATA segment
  x86/vmlinux: Actually use _etext for the end of the text segment
  vmlinux.lds.h: Allow EXCEPTION_TABLE to live in RO_DATA
  ...
This commit is contained in:
Linus Torvalds 2019-11-26 10:42:40 -08:00
commit 1d87200446
165 changed files with 1656 additions and 1188 deletions
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216
Documentation/asm-annotations.rst Normal file
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@ -0,0 +1,216 @@
Assembler Annotations
=====================
Copyright (c) 2017-2019 Jiri Slaby
This document describes the new macros for annotation of data and code in
assembly. In particular, it contains information about ``SYM_FUNC_START``,
``SYM_FUNC_END``, ``SYM_CODE_START``, and similar.
Rationale
---------
Some code like entries, trampolines, or boot code needs to be written in
assembly. The same as in C, such code is grouped into functions and
accompanied with data. Standard assemblers do not force users into precisely
marking these pieces as code, data, or even specifying their length.
Nevertheless, assemblers provide developers with such annotations to aid
debuggers throughout assembly. On top of that, developers also want to mark
some functions as *global* in order to be visible outside of their translation
units.
Over time, the Linux kernel has adopted macros from various projects (like
``binutils``) to facilitate such annotations. So for historic reasons,
developers have been using ``ENTRY``, ``END``, ``ENDPROC``, and other
annotations in assembly. Due to the lack of their documentation, the macros
are used in rather wrong contexts at some locations. Clearly, ``ENTRY`` was
intended to denote the beginning of global symbols (be it data or code).
``END`` used to mark the end of data or end of special functions with
*non-standard* calling convention. In contrast, ``ENDPROC`` should annotate
only ends of *standard* functions.
When these macros are used correctly, they help assemblers generate a nice
object with both sizes and types set correctly. For example, the result of
``arch/x86/lib/putuser.S``::
Num: Value Size Type Bind Vis Ndx Name
25: 0000000000000000 33 FUNC GLOBAL DEFAULT 1 __put_user_1
29: 0000000000000030 37 FUNC GLOBAL DEFAULT 1 __put_user_2
32: 0000000000000060 36 FUNC GLOBAL DEFAULT 1 __put_user_4
35: 0000000000000090 37 FUNC GLOBAL DEFAULT 1 __put_user_8
This is not only important for debugging purposes. When there are properly
annotated objects like this, tools can be run on them to generate more useful
information. In particular, on properly annotated objects, ``objtool`` can be
run to check and fix the object if needed. Currently, ``objtool`` can report
missing frame pointer setup/destruction in functions. It can also
automatically generate annotations for :doc:`ORC unwinder <x86/orc-unwinder>`
for most code. Both of these are especially important to support reliable
stack traces which are in turn necessary for :doc:`Kernel live patching
<livepatch/livepatch>`.
Caveat and Discussion
---------------------
As one might realize, there were only three macros previously. That is indeed
insufficient to cover all the combinations of cases:
* standard/non-standard function
* code/data
* global/local symbol
There was a discussion_ and instead of extending the current ``ENTRY/END*``
macros, it was decided that brand new macros should be introduced instead::
So how about using macro names that actually show the purpose, instead
of importing all the crappy, historic, essentially randomly chosen
debug symbol macro names from the binutils and older kernels?
.. _discussion: https://lkml.kernel.org/r/20170217104757.28588-1-jslaby@suse.cz
Macros Description
------------------
The new macros are prefixed with the ``SYM_`` prefix and can be divided into
three main groups:
1. ``SYM_FUNC_*`` -- to annotate C-like functions. This means functions with
standard C calling conventions, i.e. the stack contains a return address at
the predefined place and a return from the function can happen in a
standard way. When frame pointers are enabled, save/restore of frame
pointer shall happen at the start/end of a function, respectively, too.
Checking tools like ``objtool`` should ensure such marked functions conform
to these rules. The tools can also easily annotate these functions with
debugging information (like *ORC data*) automatically.
2. ``SYM_CODE_*`` -- special functions called with special stack. Be it
interrupt handlers with special stack content, trampolines, or startup
functions.
Checking tools mostly ignore checking of these functions. But some debug
information still can be generated automatically. For correct debug data,
this code needs hints like ``UNWIND_HINT_REGS`` provided by developers.
3. ``SYM_DATA*`` -- obviously data belonging to ``.data`` sections and not to
``.text``. Data do not contain instructions, so they have to be treated
specially by the tools: they should not treat the bytes as instructions,
nor assign any debug information to them.
Instruction Macros
~~~~~~~~~~~~~~~~~~
This section covers ``SYM_FUNC_*`` and ``SYM_CODE_*`` enumerated above.
* ``SYM_FUNC_START`` and ``SYM_FUNC_START_LOCAL`` are supposed to be **the
most frequent markings**. They are used for functions with standard calling
conventions -- global and local. Like in C, they both align the functions to
architecture specific ``__ALIGN`` bytes. There are also ``_NOALIGN`` variants
for special cases where developers do not want this implicit alignment.
``SYM_FUNC_START_WEAK`` and ``SYM_FUNC_START_WEAK_NOALIGN`` markings are
also offered as an assembler counterpart to the *weak* attribute known from
C.
All of these **shall** be coupled with ``SYM_FUNC_END``. First, it marks
the sequence of instructions as a function and computes its size to the
generated object file. Second, it also eases checking and processing such
object files as the tools can trivially find exact function boundaries.
So in most cases, developers should write something like in the following
example, having some asm instructions in between the macros, of course::
SYM_FUNC_START(memset)
... asm insns ...
SYM_FUNC_END(memset)
In fact, this kind of annotation corresponds to the now deprecated ``ENTRY``
and ``ENDPROC`` macros.
* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` serve for those
who decided to have two or more names for one function. The typical use is::
SYM_FUNC_START_ALIAS(__memset)
SYM_FUNC_START(memset)
... asm insns ...
SYM_FUNC_END(memset)
SYM_FUNC_END_ALIAS(__memset)
In this example, one can call ``__memset`` or ``memset`` with the same
result, except the debug information for the instructions is generated to
the object file only once -- for the non-``ALIAS`` case.
* ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
special cases -- if you know what you are doing. This is used exclusively
for interrupt handlers and similar where the calling convention is not the C
one. ``_NOALIGN`` variants exist too. The use is the same as for the ``FUNC``
category above::
SYM_CODE_START_LOCAL(bad_put_user)
... asm insns ...
SYM_CODE_END(bad_put_user)
Again, every ``SYM_CODE_START*`` **shall** be coupled by ``SYM_CODE_END``.
To some extent, this category corresponds to deprecated ``ENTRY`` and
``END``. Except ``END`` had several other meanings too.
* ``SYM_INNER_LABEL*`` is used to denote a label inside some
``SYM_{CODE,FUNC}_START`` and ``SYM_{CODE,FUNC}_END``. They are very similar
to C labels, except they can be made global. An example of use::
SYM_CODE_START(ftrace_caller)
/* save_mcount_regs fills in first two parameters */
...
SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
/* Load the ftrace_ops into the 3rd parameter */
...
SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
call ftrace_stub
...
retq
SYM_CODE_END(ftrace_caller)
Data Macros
~~~~~~~~~~~
Similar to instructions, there is a couple of macros to describe data in the
assembly.
* ``SYM_DATA_START`` and ``SYM_DATA_START_LOCAL`` mark the start of some data
and shall be used in conjunction with either ``SYM_DATA_END``, or
``SYM_DATA_END_LABEL``. The latter adds also a label to the end, so that
people can use ``lstack`` and (local) ``lstack_end`` in the following
example::
SYM_DATA_START_LOCAL(lstack)
.skip 4096
SYM_DATA_END_LABEL(lstack, SYM_L_LOCAL, lstack_end)
* ``SYM_DATA`` and ``SYM_DATA_LOCAL`` are variants for simple, mostly one-line
data::
SYM_DATA(HEAP, .long rm_heap)
SYM_DATA(heap_end, .long rm_stack)
In the end, they expand to ``SYM_DATA_START`` with ``SYM_DATA_END``
internally.
Support Macros
~~~~~~~~~~~~~~
All the above reduce themselves to some invocation of ``SYM_START``,
``SYM_END``, or ``SYM_ENTRY`` at last. Normally, developers should avoid using
these.
Further, in the above examples, one could see ``SYM_L_LOCAL``. There are also
``SYM_L_GLOBAL`` and ``SYM_L_WEAK``. All are intended to denote linkage of a
symbol marked by them. They are used either in ``_LABEL`` variants of the
earlier macros, or in ``SYM_START``.
Overriding Macros
~~~~~~~~~~~~~~~~~
Architecture can also override any of the macros in their own
``asm/linkage.h``, including macros specifying the type of a symbol
(``SYM_T_FUNC``, ``SYM_T_OBJECT``, and ``SYM_T_NONE``). As every macro
described in this file is surrounded by ``#ifdef`` + ``#endif``, it is enough
to define the macros differently in the aforementioned architecture-dependent
header.

8
Documentation/index.rst
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@ -135,6 +135,14 @@ needed).
mic/index
scheduler/index
Architecture-agnostic documentation
-----------------------------------
.. toctree::
:maxdepth: 2
asm-annotations
Architecture-specific documentation
-----------------------------------

18
arch/alpha/kernel/vmlinux.lds.S
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@ -1,4 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */
#define EMITS_PT_NOTE
#define RO_EXCEPTION_TABLE_ALIGN 16
#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
#include <asm/cache.h>
@ -8,7 +12,7 @@
OUTPUT_FORMAT("elf64-alpha")
OUTPUT_ARCH(alpha)
ENTRY(__start)
PHDRS { kernel PT_LOAD; note PT_NOTE; }
PHDRS { text PT_LOAD; note PT_NOTE; }
jiffies = jiffies_64;
SECTIONS
{
@ -27,17 +31,11 @@ SECTIONS
LOCK_TEXT
*(.fixup)
*(.gnu.warning)
} :kernel
} :text
swapper_pg_dir = SWAPPER_PGD;
_etext = .; /* End of text section */
NOTES :kernel :note
.dummy : {
*(.dummy)
} :kernel
RODATA
EXCEPTION_TABLE(16)
RO_DATA(4096)
/* Will be freed after init */
__init_begin = ALIGN(PAGE_SIZE);
@ -52,7 +50,7 @@ SECTIONS
_sdata = .; /* Start of rw data section */
_data = .;
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
.got : {
*(.got)

6
arch/arc/kernel/vmlinux.lds.S
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@ -95,13 +95,13 @@ SECTIONS
_etext = .;
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RO_DATA(PAGE_SIZE)
/*
* 1. this is .data essentially
* 2. THREAD_SIZE for init.task, must be kernel-stk sz aligned
*/
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
@ -118,8 +118,6 @@ SECTIONS
/DISCARD/ : { *(.eh_frame) }
#endif
NOTES
. = ALIGN(PAGE_SIZE);
_end = . ;

4
arch/arm/kernel/vmlinux-xip.lds.S
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@ -70,8 +70,6 @@ SECTIONS
ARM_UNWIND_SECTIONS
#endif
NOTES
_etext = .; /* End of text and rodata section */
ARM_VECTORS
@ -114,7 +112,7 @@ SECTIONS
. = ALIGN(THREAD_SIZE);
_sdata = .;
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
.data.ro_after_init : AT(ADDR(.data.ro_after_init) - LOAD_OFFSET) {
*(.data..ro_after_init)
}

4
arch/arm/kernel/vmlinux.lds.S
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@ -81,8 +81,6 @@ SECTIONS
ARM_UNWIND_SECTIONS
#endif
NOTES
#ifdef CONFIG_STRICT_KERNEL_RWX
. = ALIGN(1<<SECTION_SHIFT);
#else
@ -143,7 +141,7 @@ SECTIONS
__init_end = .;
_sdata = .;
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
BSS_SECTION(0, 0, 0)

10
arch/arm64/kernel/vmlinux.lds.S
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@ -5,6 +5,8 @@
* Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
*/
#define RO_EXCEPTION_TABLE_ALIGN 8
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
#include <asm/kernel-pgtable.h>
@ -132,11 +134,9 @@ SECTIONS
. = ALIGN(SEGMENT_ALIGN);
_etext = .; /* End of text section */
RO_DATA(PAGE_SIZE) /* everything from this point to */
EXCEPTION_TABLE(8) /* __init_begin will be marked RO NX */
NOTES
/* everything from this point to __init_begin will be marked RO NX */
RO_DATA(PAGE_SIZE)
. = ALIGN(PAGE_SIZE);
idmap_pg_dir = .;
. += IDMAP_DIR_SIZE;
@ -212,7 +212,7 @@ SECTIONS
_data = .;
_sdata = .;
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_ALIGN)
/*
* Data written with the MMU off but read with the MMU on requires

8
arch/c6x/kernel/vmlinux.lds.S
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@ -5,6 +5,9 @@
* Copyright (C) 2010, 2011 Texas Instruments Incorporated
* Mark Salter <msalter@redhat.com>
*/
#define RO_EXCEPTION_TABLE_ALIGN 16
#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
#include <asm/page.h>
@ -80,10 +83,7 @@ SECTIONS
*(.gnu.warning)
}
EXCEPTION_TABLE(16)
NOTES
RO_DATA_SECTION(PAGE_SIZE)
RO_DATA(PAGE_SIZE)
.const :
{
*(.const .const.* .gnu.linkonce.r.*)

5
arch/csky/kernel/vmlinux.lds.S
View File

@ -49,11 +49,10 @@ SECTIONS
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RO_DATA(PAGE_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
NOTES
EXCEPTION_TABLE(L1_CACHE_BYTES)
BSS_SECTION(L1_CACHE_BYTES, PAGE_SIZE, L1_CACHE_BYTES)
VBR_BASE

9
arch/h8300/kernel/vmlinux.lds.S
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@ -1,4 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */
#define RO_EXCEPTION_TABLE_ALIGN 16
#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
#include <asm/thread_info.h>
@ -37,9 +40,7 @@ SECTIONS
#endif
_etext = . ;
}
EXCEPTION_TABLE(16)
NOTES
RO_DATA_SECTION(4)
RO_DATA(4)
ROMEND = .;
#if defined(CONFIG_ROMKERNEL)
. = RAMTOP;
@ -48,7 +49,7 @@ SECTIONS
#endif
_sdata = . ;
__data_start = . ;
RW_DATA_SECTION(0, PAGE_SIZE, THREAD_SIZE)
RW_DATA(0, PAGE_SIZE, THREAD_SIZE)
#if defined(CONFIG_ROMKERNEL)
#undef ADDR
#endif

5
arch/hexagon/kernel/vmlinux.lds.S
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@ -49,12 +49,11 @@ SECTIONS
INIT_DATA_SECTION(PAGE_SIZE)
_sdata = .;
RW_DATA_SECTION(32,PAGE_SIZE,_THREAD_SIZE)
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA(32,PAGE_SIZE,_THREAD_SIZE)
RO_DATA(PAGE_SIZE)
_edata = .;
EXCEPTION_TABLE(16)
NOTES
BSS_SECTION(_PAGE_SIZE, _PAGE_SIZE, _PAGE_SIZE)

20
arch/ia64/kernel/vmlinux.lds.S
View File

@ -5,6 +5,9 @@
#include <asm/pgtable.h>
#include <asm/thread_info.h>
#define EMITS_PT_NOTE
#define RO_EXCEPTION_TABLE_ALIGN 16
#include <asm-generic/vmlinux.lds.h>
OUTPUT_FORMAT("elf64-ia64-little")
@ -13,7 +16,7 @@ ENTRY(phys_start)
jiffies = jiffies_64;
PHDRS {
code PT_LOAD;
text PT_LOAD;
percpu PT_LOAD;
data PT_LOAD;
note PT_NOTE;
@ -36,7 +39,7 @@ SECTIONS {
phys_start = _start - LOAD_OFFSET;
code : {
} :code
} :text
. = KERNEL_START;
_text = .;
@ -68,11 +71,6 @@ SECTIONS {
/*
* Read-only data
*/
NOTES :code :note /* put .notes in text and mark in PT_NOTE */
code_continues : {
} : code /* switch back to regular program... */
EXCEPTION_TABLE(16)
/* MCA table */
. = ALIGN(16);
@ -102,11 +100,11 @@ SECTIONS {
__start_unwind = .;
*(.IA_64.unwind*)
__end_unwind = .;
} :code :unwind
} :text :unwind
code_continues2 : {
} : code
} :text
RODATA
RO_DATA(4096)
.opd : AT(ADDR(.opd) - LOAD_OFFSET) {
__start_opd = .;
@ -214,7 +212,7 @@ SECTIONS {
_end = .;
code : {
} :code
} :text
STABS_DEBUG
DWARF_DEBUG

4
arch/m68k/kernel/vmlinux-nommu.lds
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@ -60,8 +60,8 @@ SECTIONS {
#endif
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE)
RO_DATA(PAGE_SIZE)
RW_DATA(16, PAGE_SIZE, THREAD_SIZE)
_edata = .;
EXCEPTION_TABLE(16)

4
arch/m68k/kernel/vmlinux-std.lds
View File

@ -31,9 +31,9 @@ SECTIONS
_sdata = .; /* Start of data section */
RODATA
RO_DATA(4096)
RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE)
RW_DATA(16, PAGE_SIZE, THREAD_SIZE)
BSS_SECTION(0, 0, 0)

4
arch/m68k/kernel/vmlinux-sun3.lds
View File

@ -24,13 +24,13 @@ SECTIONS
*(.fixup)
*(.gnu.warning)
} :text = 0x4e75
RODATA
RO_DATA(4096)
_etext = .; /* End of text section */
EXCEPTION_TABLE(16) :data
_sdata = .; /* Start of rw data section */
RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE) :data
RW_DATA(16, PAGE_SIZE, THREAD_SIZE) :data
/* End of data goes *here* so that freeing init code works properly. */
_edata = .;
NOTES

8
arch/microblaze/kernel/vmlinux.lds.S
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@ -11,6 +11,8 @@
OUTPUT_ARCH(microblaze)
ENTRY(microblaze_start)
#define RO_EXCEPTION_TABLE_ALIGN 16
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
#include <asm/thread_info.h>
@ -51,9 +53,7 @@ SECTIONS {
}
. = ALIGN(16);
RODATA
EXCEPTION_TABLE(16)
NOTES
RO_DATA(4096)
/*
* sdata2 section can go anywhere, but must be word aligned
@ -70,7 +70,7 @@ SECTIONS {
}
_sdata = . ;
RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
RW_DATA(32, PAGE_SIZE, THREAD_SIZE)
_edata = . ;
/* Under the microblaze ABI, .sdata and .sbss must be contiguous */

15
arch/mips/kernel/vmlinux.lds.S
View File

@ -10,6 +10,11 @@
*/
#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
/* Cavium Octeon should not have a separate PT_NOTE Program Header. */
#ifndef CONFIG_CAVIUM_OCTEON_SOC
#define EMITS_PT_NOTE
#endif
#include <asm-generic/vmlinux.lds.h>
#undef mips
@ -76,16 +81,8 @@ SECTIONS
__stop___dbe_table = .;
}
#ifdef CONFIG_CAVIUM_OCTEON_SOC
#define NOTES_HEADER
#else /* CONFIG_CAVIUM_OCTEON_SOC */
#define NOTES_HEADER :note
#endif /* CONFIG_CAVIUM_OCTEON_SOC */
NOTES :text NOTES_HEADER
.dummy : { *(.dummy) } :text
_sdata = .; /* Start of data section */
RODATA
RO_DATA(4096)
/* writeable */
.data : { /* Data */

5
arch/nds32/kernel/vmlinux.lds.S
View File

@ -53,12 +53,11 @@ SECTIONS
_etext = .; /* End of text and rodata section */
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RO_DATA(PAGE_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
EXCEPTION_TABLE(16)
NOTES
BSS_SECTION(4, 4, 4)
_end = .;

5
arch/nios2/kernel/vmlinux.lds.S
View File

@ -49,8 +49,8 @@ SECTIONS
__init_end = .;
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RO_DATA(PAGE_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
BSS_SECTION(0, 0, 0)
@ -58,7 +58,6 @@ SECTIONS
STABS_DEBUG
DWARF_DEBUG
NOTES
DISCARDS
}

7
arch/openrisc/kernel/vmlinux.lds.S
View File

@ -67,19 +67,18 @@ SECTIONS
_sdata = .;
/* Page alignment required for RO_DATA_SECTION */
RO_DATA_SECTION(PAGE_SIZE)
/* Page alignment required for RO_DATA */
RO_DATA(PAGE_SIZE)
_e_kernel_ro = .;
/* Whatever comes after _e_kernel_ro had better be page-aligend, too */
/* 32 here is cacheline size... recheck this */
RW_DATA_SECTION(32, PAGE_SIZE, PAGE_SIZE)
RW_DATA(32, PAGE_SIZE, PAGE_SIZE)
_edata = .;
EXCEPTION_TABLE(4)
NOTES
/* Init code and data */
. = ALIGN(PAGE_SIZE);

11
arch/parisc/kernel/vmlinux.lds.S
View File

@ -19,6 +19,7 @@
*(.data..vm0.pte)
#define CC_USING_PATCHABLE_FUNCTION_ENTRY
#define RO_EXCEPTION_TABLE_ALIGN 8
#include <asm-generic/vmlinux.lds.h>
@ -109,7 +110,7 @@ SECTIONS
_sdata = .;
/* Architecturally we need to keep __gp below 0x1000000 and thus
* in front of RO_DATA_SECTION() which stores lots of tracepoint
* in front of RO_DATA() which stores lots of tracepoint
* and ftrace symbols. */
#ifdef CONFIG_64BIT
. = ALIGN(16);
@ -127,11 +128,7 @@ SECTIONS
}
#endif
RO_DATA_SECTION(8)
/* RO because of BUILDTIME_EXTABLE_SORT */
EXCEPTION_TABLE(8)
NOTES
RO_DATA(8)
/* unwind info */
.PARISC.unwind : {
@ -149,7 +146,7 @@ SECTIONS
data_start = .;
/* Data */
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, PAGE_SIZE)
/* PA-RISC locks requires 16-byte alignment */
. = ALIGN(16);

37
arch/powerpc/kernel/vmlinux.lds.S
View File

@ -6,6 +6,8 @@
#endif
#define BSS_FIRST_SECTIONS *(.bss.prominit)
#define EMITS_PT_NOTE
#define RO_EXCEPTION_TABLE_ALIGN 0
#include <asm/page.h>
#include <asm-generic/vmlinux.lds.h>
@ -18,22 +20,8 @@
ENTRY(_stext)
PHDRS {
kernel PT_LOAD FLAGS(7); /* RWX */
notes PT_NOTE FLAGS(0);
dummy PT_NOTE FLAGS(0);
/* binutils < 2.18 has a bug that makes it misbehave when taking an
ELF file with all segments at load address 0 as input. This
happens when running "strip" on vmlinux, because of the AT() magic
in this linker script. People using GCC >= 4.2 won't run into
this problem, because the "build-id" support will put some data
into the "notes" segment (at a non-zero load address).
To work around this, we force some data into both the "dummy"
segment and the kernel segment, so the dummy segment will get a
non-zero load address. It's not enough to always create the
"notes" segment, since if nothing gets assigned to it, its load
address will be zero. */
text PT_LOAD FLAGS(7); /* RWX */
note PT_NOTE FLAGS(0);
}
#ifdef CONFIG_PPC64
@ -77,7 +65,7 @@ SECTIONS
#else /* !CONFIG_PPC64 */
HEAD_TEXT
#endif
} :kernel
} :text
__head_end = .;
@ -126,7 +114,7 @@ SECTIONS
__got2_end = .;
#endif /* CONFIG_PPC32 */
} :kernel
} :text
. = ALIGN(ETEXT_ALIGN_SIZE);
_etext = .;
@ -175,17 +163,6 @@ SECTIONS
__stop__btb_flush_fixup = .;
}
#endif
EXCEPTION_TABLE(0)
NOTES :kernel :notes
/* The dummy segment contents for the bug workaround mentioned above
near PHDRS. */
.dummy : AT(ADDR(.dummy) - LOAD_OFFSET) {
LONG(0)
LONG(0)
LONG(0)
} :kernel :dummy
/*
* Init sections discarded at runtime
@ -200,7 +177,7 @@ SECTIONS
#ifdef CONFIG_PPC64
*(.tramp.ftrace.init);
#endif
} :kernel
} :text
/* .exit.text is discarded at runtime, not link time,
* to deal with references from __bug_table

5
arch/riscv/kernel/vmlinux.lds.S
View File

@ -52,12 +52,12 @@ SECTIONS
/* Start of data section */
_sdata = .;
RO_DATA_SECTION(L1_CACHE_BYTES)
RO_DATA(L1_CACHE_BYTES)
.srodata : {
*(.srodata*)
}
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
.sdata : {
__global_pointer$ = . + 0x800;
*(.sdata*)
@ -69,7 +69,6 @@ SECTIONS
BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0)
EXCEPTION_TABLE(0x10)
NOTES
.rel.dyn : {
*(.rel.dyn*)

12
arch/s390/kernel/vmlinux.lds.S
View File

@ -15,6 +15,8 @@
/* Handle ro_after_init data on our own. */
#define RO_AFTER_INIT_DATA
#define EMITS_PT_NOTE
#include <asm-generic/vmlinux.lds.h>
#include <asm/vmlinux.lds.h>
@ -50,11 +52,7 @@ SECTIONS
_etext = .; /* End of text section */
} :text = 0x0700
NOTES :text :note
.dummy : { *(.dummy) } :data
RO_DATA_SECTION(PAGE_SIZE)
RO_DATA(PAGE_SIZE)
. = ALIGN(PAGE_SIZE);
_sdata = .; /* Start of data section */
@ -64,12 +62,12 @@ SECTIONS
.data..ro_after_init : {
*(.data..ro_after_init)
JUMP_TABLE_DATA
}
} :data
EXCEPTION_TABLE(16)
. = ALIGN(PAGE_SIZE);
__end_ro_after_init = .;
RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
RW_DATA(0x100, PAGE_SIZE, THREAD_SIZE)
BOOT_DATA_PRESERVED
_edata = .; /* End of data section */

3
arch/sh/kernel/vmlinux.lds.S
View File

@ -48,11 +48,10 @@ SECTIONS
} = 0x0009
EXCEPTION_TABLE(16)
NOTES
_sdata = .;
RO_DATA(PAGE_SIZE)
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
DWARF_EH_FRAME

3
arch/sparc/kernel/vmlinux.lds.S
View File

@ -67,7 +67,7 @@ SECTIONS
.data1 : {
*(.data1)
}
RW_DATA_SECTION(SMP_CACHE_BYTES, 0, THREAD_SIZE)
RW_DATA(SMP_CACHE_BYTES, 0, THREAD_SIZE)
/* End of data section */
_edata = .;
@ -78,7 +78,6 @@ SECTIONS
__stop___fixup = .;
}
EXCEPTION_TABLE(16)
NOTES
. = ALIGN(PAGE_SIZE);
__init_begin = ALIGN(PAGE_SIZE);

3
arch/um/include/asm/common.lds.S
View File

@ -9,14 +9,13 @@
_sdata = .;
PROVIDE (sdata = .);
RODATA
RO_DATA(4096)
.unprotected : { *(.unprotected) }
. = ALIGN(4096);
PROVIDE (_unprotected_end = .);
. = ALIGN(4096);
NOTES
EXCEPTION_TABLE(0)
BUG_TABLE

5
arch/unicore32/kernel/vmlinux.lds.S
View File

@ -43,12 +43,11 @@ SECTIONS
_etext = .;
_sdata = .;
RO_DATA_SECTION(PAGE_SIZE)
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
RO_DATA(PAGE_SIZE)
RW_DATA(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
_edata = .;
EXCEPTION_TABLE(L1_CACHE_BYTES)
NOTES
BSS_SECTION(0, 0, 0)
_end = .;

1
arch/x86/boot/Makefile
View File

@ -67,6 +67,7 @@ clean-files += cpustr.h
KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
GCOV_PROFILE := n
UBSAN_SANITIZE := n

1
arch/x86/boot/compressed/Makefile
View File

@ -38,6 +38,7 @@ KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
KBUILD_CFLAGS += -Wno-pointer-sign
KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
GCOV_PROFILE := n

4
arch/x86/boot/compressed/efi_stub_32.S
View File

@ -24,7 +24,7 @@
*/
.text
ENTRY(efi_call_phys)
SYM_FUNC_START(efi_call_phys)
/*
* 0. The function can only be called in Linux kernel. So CS has been
* set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found
@ -77,7 +77,7 @@ ENTRY(efi_call_phys)
movl saved_return_addr(%edx), %ecx
pushl %ecx
ret
ENDPROC(efi_call_phys)
SYM_FUNC_END(efi_call_phys)
.previous
.data

33
arch/x86/boot/compressed/efi_thunk_64.S
View File

@ -23,7 +23,7 @@
.code64
.text
ENTRY(efi64_thunk)
SYM_FUNC_START(efi64_thunk)
push %rbp
push %rbx
@ -97,14 +97,14 @@ ENTRY(efi64_thunk)
pop %rbx
pop %rbp
ret
ENDPROC(efi64_thunk)
SYM_FUNC_END(efi64_thunk)
ENTRY(efi_exit32)
SYM_FUNC_START_LOCAL(efi_exit32)
movq func_rt_ptr(%rip), %rax
push %rax
mov %rdi, %rax
ret
ENDPROC(efi_exit32)
SYM_FUNC_END(efi_exit32)
.code32
/*
@ -112,7 +112,7 @@ ENDPROC(efi_exit32)
*
* The stack should represent the 32-bit calling convention.
*/
ENTRY(efi_enter32)
SYM_FUNC_START_LOCAL(efi_enter32)
movl $__KERNEL_DS, %eax
movl %eax, %ds
movl %eax, %es
@ -172,20 +172,23 @@ ENTRY(efi_enter32)
btsl $X86_CR0_PG_BIT, %eax
movl %eax, %cr0
lret
ENDPROC(efi_enter32)
SYM_FUNC_END(efi_enter32)
.data
.balign 8
.global efi32_boot_gdt
efi32_boot_gdt: .word 0
.quad 0
SYM_DATA_START(efi32_boot_gdt)
.word 0
.quad 0
SYM_DATA_END(efi32_boot_gdt)
save_gdt: .word 0
.quad 0
func_rt_ptr: .quad 0
SYM_DATA_START_LOCAL(save_gdt)
.word 0
.quad 0
SYM_DATA_END(save_gdt)
.global efi_gdt64
efi_gdt64:
SYM_DATA_LOCAL(func_rt_ptr, .quad 0)
SYM_DATA_START(efi_gdt64)
.word efi_gdt64_end - efi_gdt64
.long 0 /* Filled out by user */
.word 0
@ -194,4 +197,4 @@ efi_gdt64:
.quad 0x00cf92000000ffff /* __KERNEL_DS */
.quad 0x0080890000000000 /* TS descriptor */
.quad 0x0000000000000000 /* TS continued */
efi_gdt64_end:
SYM_DATA_END_LABEL(efi_gdt64, SYM_L_LOCAL, efi_gdt64_end)

15
arch/x86/boot/compressed/head_32.S
View File

@ -61,7 +61,7 @@
.hidden _egot
__HEAD
ENTRY(startup_32)
SYM_FUNC_START(startup_32)
cld
/*
* Test KEEP_SEGMENTS flag to see if the bootloader is asking
@ -142,14 +142,14 @@ ENTRY(startup_32)
*/
leal .Lrelocated(%ebx), %eax
jmp *%eax
ENDPROC(startup_32)
SYM_FUNC_END(startup_32)
#ifdef CONFIG_EFI_STUB
/*
* We don't need the return address, so set up the stack so efi_main() can find
* its arguments.
*/
ENTRY(efi_pe_entry)
SYM_FUNC_START(efi_pe_entry)
add $0x4, %esp
call 1f
@ -174,9 +174,9 @@ ENTRY(efi_pe_entry)
pushl %eax
pushl %ecx
jmp 2f /* Skip efi_config initialization */
ENDPROC(efi_pe_entry)
SYM_FUNC_END(efi_pe_entry)
ENTRY(efi32_stub_entry)
SYM_FUNC_START(efi32_stub_entry)
add $0x4, %esp
popl %ecx
popl %edx
@ -205,11 +205,11 @@ fail:
movl BP_code32_start(%esi), %eax
leal startup_32(%eax), %eax
jmp *%eax
ENDPROC(efi32_stub_entry)
SYM_FUNC_END(efi32_stub_entry)
#endif
.text
.Lrelocated:
SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
/*
* Clear BSS (stack is currently empty)
@ -260,6 +260,7 @@ ENDPROC(efi32_stub_entry)
*/
xorl %ebx, %ebx
jmp *%eax
SYM_FUNC_END(.Lrelocated)
#ifdef CONFIG_EFI_STUB
.data

63
arch/x86/boot/compressed/head_64.S
View File

@ -45,7 +45,7 @@
__HEAD
.code32
ENTRY(startup_32)
SYM_FUNC_START(startup_32)
/*
* 32bit entry is 0 and it is ABI so immutable!
* If we come here directly from a bootloader,
@ -222,11 +222,11 @@ ENTRY(startup_32)
/* Jump from 32bit compatibility mode into 64bit mode. */
lret
ENDPROC(startup_32)
SYM_FUNC_END(startup_32)
#ifdef CONFIG_EFI_MIXED
.org 0x190
ENTRY(efi32_stub_entry)
SYM_FUNC_START(efi32_stub_entry)
add $0x4, %esp /* Discard return address */
popl %ecx
popl %edx
@ -245,12 +245,12 @@ ENTRY(efi32_stub_entry)
movl %eax, efi_config(%ebp)
jmp startup_32
ENDPROC(efi32_stub_entry)
SYM_FUNC_END(efi32_stub_entry)
#endif
.code64
.org 0x200
ENTRY(startup_64)
SYM_CODE_START(startup_64)
/*
* 64bit entry is 0x200 and it is ABI so immutable!
* We come here either from startup_32 or directly from a
@ -442,11 +442,12 @@ trampoline_return:
*/
leaq .Lrelocated(%rbx), %rax
jmp *%rax
SYM_CODE_END(startup_64)
#ifdef CONFIG_EFI_STUB
/* The entry point for the PE/COFF executable is efi_pe_entry. */
ENTRY(efi_pe_entry)
SYM_FUNC_START(efi_pe_entry)
movq %rcx, efi64_config(%rip) /* Handle */
movq %rdx, efi64_config+8(%rip) /* EFI System table pointer */
@ -495,10 +496,10 @@ fail:
movl BP_code32_start(%esi), %eax
leaq startup_64(%rax), %rax
jmp *%rax
ENDPROC(efi_pe_entry)
SYM_FUNC_END(efi_pe_entry)
.org 0x390
ENTRY(efi64_stub_entry)
SYM_FUNC_START(efi64_stub_entry)
movq %rdi, efi64_config(%rip) /* Handle */
movq %rsi, efi64_config+8(%rip) /* EFI System table pointer */
@ -507,11 +508,11 @@ ENTRY(efi64_stub_entry)
movq %rdx, %rsi
jmp handover_entry
ENDPROC(efi64_stub_entry)
SYM_FUNC_END(efi64_stub_entry)
#endif
.text
.Lrelocated:
SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
/*
* Clear BSS (stack is currently empty)
@ -540,6 +541,7 @@ ENDPROC(efi64_stub_entry)
* Jump to the decompressed kernel.
*/
jmp *%rax
SYM_FUNC_END(.Lrelocated)
/*
* Adjust the global offset table
@ -570,7 +572,7 @@ ENDPROC(efi64_stub_entry)
* ECX contains the base address of the trampoline memory.
* Non zero RDX means trampoline needs to enable 5-level paging.
*/
ENTRY(trampoline_32bit_src)
SYM_CODE_START(trampoline_32bit_src)
/* Set up data and stack segments */
movl $__KERNEL_DS, %eax
movl %eax, %ds
@ -633,11 +635,13 @@ ENTRY(trampoline_32bit_src)
movl %eax, %cr0
lret
SYM_CODE_END(trampoline_32bit_src)
.code64
.Lpaging_enabled:
SYM_FUNC_START_LOCAL_NOALIGN(.Lpaging_enabled)
/* Return from the trampoline */
jmp *%rdi
SYM_FUNC_END(.Lpaging_enabled)
/*
* The trampoline code has a size limit.
@ -647,20 +651,22 @@ ENTRY(trampoline_32bit_src)
.org trampoline_32bit_src + TRAMPOLINE_32BIT_CODE_SIZE
.code32
.Lno_longmode:
SYM_FUNC_START_LOCAL_NOALIGN(.Lno_longmode)
/* This isn't an x86-64 CPU, so hang intentionally, we cannot continue */
1:
hlt
jmp 1b
SYM_FUNC_END(.Lno_longmode)
#include "../../kernel/verify_cpu.S"
.data
gdt64:
SYM_DATA_START_LOCAL(gdt64)
.word gdt_end - gdt
.quad 0
SYM_DATA_END(gdt64)
.balign 8
gdt:
SYM_DATA_START_LOCAL(gdt)
.word gdt_end - gdt
.long gdt
.word 0
@ -669,25 +675,24 @@ gdt:
.quad 0x00cf92000000ffff /* __KERNEL_DS */
.quad 0x0080890000000000 /* TS descriptor */
.quad 0x0000000000000000 /* TS continued */
gdt_end:
SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
#ifdef CONFIG_EFI_STUB
efi_config:
.quad 0
SYM_DATA_LOCAL(efi_config, .quad 0)
#ifdef CONFIG_EFI_MIXED
.global efi32_config
efi32_config:
SYM_DATA_START(efi32_config)
.fill 5,8,0
.quad efi64_thunk
.byte 0
SYM_DATA_END(efi32_config)
#endif
.global efi64_config
efi64_config:
SYM_DATA_START(efi64_config)
.fill 5,8,0
.quad efi_call
.byte 1
SYM_DATA_END(efi64_config)
#endif /* CONFIG_EFI_STUB */
/*
@ -695,23 +700,21 @@ efi64_config:
*/
.bss
.balign 4
boot_heap:
.fill BOOT_HEAP_SIZE, 1, 0
boot_stack:
SYM_DATA_LOCAL(boot_heap, .fill BOOT_HEAP_SIZE, 1, 0)
SYM_DATA_START_LOCAL(boot_stack)
.fill BOOT_STACK_SIZE, 1, 0
boot_stack_end:
SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end)
/*
* Space for page tables (not in .bss so not zeroed)
*/
.section ".pgtable","a",@nobits
.balign 4096
pgtable:
.fill BOOT_PGT_SIZE, 1, 0
SYM_DATA_LOCAL(pgtable, .fill BOOT_PGT_SIZE, 1, 0)
/*
* The page table is going to be used instead of page table in the trampoline
* memory.
*/
top_pgtable:
.fill PAGE_SIZE, 1, 0
SYM_DATA_LOCAL(top_pgtable, .fill PAGE_SIZE, 1, 0)

11
arch/x86/boot/compressed/mem_encrypt.S
View File

@ -15,7 +15,7 @@
.text
.code32
ENTRY(get_sev_encryption_bit)
SYM_FUNC_START(get_sev_encryption_bit)
xor %eax, %eax
#ifdef CONFIG_AMD_MEM_ENCRYPT
@ -65,10 +65,10 @@ ENTRY(get_sev_encryption_bit)
#endif /* CONFIG_AMD_MEM_ENCRYPT */
ret
ENDPROC(get_sev_encryption_bit)
SYM_FUNC_END(get_sev_encryption_bit)
.code64
ENTRY(set_sev_encryption_mask)
SYM_FUNC_START(set_sev_encryption_mask)
#ifdef CONFIG_AMD_MEM_ENCRYPT
push %rbp
push %rdx
@ -90,12 +90,11 @@ ENTRY(set_sev_encryption_mask)
xor %rax, %rax
ret
ENDPROC(set_sev_encryption_mask)
SYM_FUNC_END(set_sev_encryption_mask)
.data
#ifdef CONFIG_AMD_MEM_ENCRYPT
.balign 8
GLOBAL(sme_me_mask)
.quad 0
SYM_DATA(sme_me_mask, .quad 0)
#endif

16
arch/x86/boot/copy.S
View File

@ -15,7 +15,7 @@
.code16
.text
GLOBAL(memcpy)
SYM_FUNC_START_NOALIGN(memcpy)
pushw %si
pushw %di
movw %ax, %di
@ -29,9 +29,9 @@ GLOBAL(memcpy)
popw %di
popw %si
retl
ENDPROC(memcpy)
SYM_FUNC_END(memcpy)
GLOBAL(memset)
SYM_FUNC_START_NOALIGN(memset)
pushw %di
movw %ax, %di
movzbl %dl, %eax
@ -44,22 +44,22 @@ GLOBAL(memset)
rep; stosb
popw %di
retl
ENDPROC(memset)
SYM_FUNC_END(memset)
GLOBAL(copy_from_fs)
SYM_FUNC_START_NOALIGN(copy_from_fs)
pushw %ds
pushw %fs
popw %ds
calll memcpy
popw %ds
retl
ENDPROC(copy_from_fs)
SYM_FUNC_END(copy_from_fs)
GLOBAL(copy_to_fs)
SYM_FUNC_START_NOALIGN(copy_to_fs)
pushw %es
pushw %fs
popw %es
calll memcpy
popw %es
retl
ENDPROC(copy_to_fs)
SYM_FUNC_END(copy_to_fs)

10
arch/x86/boot/pmjump.S
View File

@ -21,7 +21,7 @@
/*
* void protected_mode_jump(u32 entrypoint, u32 bootparams);
*/
GLOBAL(protected_mode_jump)
SYM_FUNC_START_NOALIGN(protected_mode_jump)
movl %edx, %esi # Pointer to boot_params table
xorl %ebx, %ebx
@ -40,13 +40,13 @@ GLOBAL(protected_mode_jump)
# Transition to 32-bit mode
.byte 0x66, 0xea # ljmpl opcode
2: .long in_pm32 # offset
2: .long .Lin_pm32 # offset
.word __BOOT_CS # segment
ENDPROC(protected_mode_jump)
SYM_FUNC_END(protected_mode_jump)
.code32
.section ".text32","ax"
GLOBAL(in_pm32)
SYM_FUNC_START_LOCAL_NOALIGN(.Lin_pm32)
# Set up data segments for flat 32-bit mode
movl %ecx, %ds
movl %ecx, %es
@ -72,4 +72,4 @@ GLOBAL(in_pm32)
lldt %cx
jmpl *%eax # Jump to the 32-bit entrypoint
ENDPROC(in_pm32)
SYM_FUNC_END(.Lin_pm32)

36
arch/x86/crypto/aegis128-aesni-asm.S
View File

@ -71,7 +71,7 @@
* %r8
* %r9
*/
__load_partial:
SYM_FUNC_START_LOCAL(__load_partial)
xor %r9d, %r9d
pxor MSG, MSG
@ -123,7 +123,7 @@ __load_partial:
.Lld_partial_8:
ret
ENDPROC(__load_partial)
SYM_FUNC_END(__load_partial)
/*
* __store_partial: internal ABI
@ -137,7 +137,7 @@ ENDPROC(__load_partial)
* %r9
* %r10
*/
__store_partial:
SYM_FUNC_START_LOCAL(__store_partial)
mov LEN, %r8
mov DST, %r9
@ -181,12 +181,12 @@ __store_partial:
.Lst_partial_1:
ret
ENDPROC(__store_partial)
SYM_FUNC_END(__store_partial)
/*
* void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
*/
ENTRY(crypto_aegis128_aesni_init)
SYM_FUNC_START(crypto_aegis128_aesni_init)
FRAME_BEGIN
/* load IV: */
@ -226,13 +226,13 @@ ENTRY(crypto_aegis128_aesni_init)
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_init)
SYM_FUNC_END(crypto_aegis128_aesni_init)
/*
* void crypto_aegis128_aesni_ad(void *state, unsigned int length,
* const void *data);
*/
ENTRY(crypto_aegis128_aesni_ad)
SYM_FUNC_START(crypto_aegis128_aesni_ad)
FRAME_BEGIN
cmp $0x10, LEN
@ -378,7 +378,7 @@ ENTRY(crypto_aegis128_aesni_ad)
.Lad_out:
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_ad)
SYM_FUNC_END(crypto_aegis128_aesni_ad)
.macro encrypt_block a s0 s1 s2 s3 s4 i
movdq\a (\i * 0x10)(SRC), MSG
@ -402,7 +402,7 @@ ENDPROC(crypto_aegis128_aesni_ad)
* void crypto_aegis128_aesni_enc(void *state, unsigned int length,
* const void *src, void *dst);
*/
ENTRY(crypto_aegis128_aesni_enc)
SYM_FUNC_START(crypto_aegis128_aesni_enc)
FRAME_BEGIN
cmp $0x10, LEN
@ -493,13 +493,13 @@ ENTRY(crypto_aegis128_aesni_enc)
.Lenc_out:
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_enc)
SYM_FUNC_END(crypto_aegis128_aesni_enc)
/*
* void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length,
* const void *src, void *dst);
*/
ENTRY(crypto_aegis128_aesni_enc_tail)
SYM_FUNC_START(crypto_aegis128_aesni_enc_tail)
FRAME_BEGIN
/* load the state: */
@ -533,7 +533,7 @@ ENTRY(crypto_aegis128_aesni_enc_tail)
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_enc_tail)
SYM_FUNC_END(crypto_aegis128_aesni_enc_tail)
.macro decrypt_block a s0 s1 s2 s3 s4 i
movdq\a (\i * 0x10)(SRC), MSG
@ -556,7 +556,7 @@ ENDPROC(crypto_aegis128_aesni_enc_tail)
* void crypto_aegis128_aesni_dec(void *state, unsigned int length,
* const void *src, void *dst);
*/
ENTRY(crypto_aegis128_aesni_dec)
SYM_FUNC_START(crypto_aegis128_aesni_dec)
FRAME_BEGIN
cmp $0x10, LEN
@ -647,13 +647,13 @@ ENTRY(crypto_aegis128_aesni_dec)
.Ldec_out:
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_dec)
SYM_FUNC_END(crypto_aegis128_aesni_dec)
/*
* void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length,
* const void *src, void *dst);
*/
ENTRY(crypto_aegis128_aesni_dec_tail)
SYM_FUNC_START(crypto_aegis128_aesni_dec_tail)
FRAME_BEGIN
/* load the state: */
@ -697,13 +697,13 @@ ENTRY(crypto_aegis128_aesni_dec_tail)
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_dec_tail)
SYM_FUNC_END(crypto_aegis128_aesni_dec_tail)
/*
* void crypto_aegis128_aesni_final(void *state, void *tag_xor,
* u64 assoclen, u64 cryptlen);
*/
ENTRY(crypto_aegis128_aesni_final)
SYM_FUNC_START(crypto_aegis128_aesni_final)
FRAME_BEGIN
/* load the state: */
@ -744,4 +744,4 @@ ENTRY(crypto_aegis128_aesni_final)
FRAME_END
ret
ENDPROC(crypto_aegis128_aesni_final)
SYM_FUNC_END(crypto_aegis128_aesni_final)

12
arch/x86/crypto/aes_ctrby8_avx-x86_64.S
View File

@ -544,11 +544,11 @@ ddq_add_8:
* aes_ctr_enc_128_avx_by8(void *in, void *iv, void *keys, void *out,
* unsigned int num_bytes)
*/
ENTRY(aes_ctr_enc_128_avx_by8)
SYM_FUNC_START(aes_ctr_enc_128_avx_by8)
/* call the aes main loop */
do_aes_ctrmain KEY_128
ENDPROC(aes_ctr_enc_128_avx_by8)
SYM_FUNC_END(aes_ctr_enc_128_avx_by8)
/*
* routine to do AES192 CTR enc/decrypt "by8"
@ -557,11 +557,11 @@ ENDPROC(aes_ctr_enc_128_avx_by8)
* aes_ctr_enc_192_avx_by8(void *in, void *iv, void *keys, void *out,
* unsigned int num_bytes)
*/
ENTRY(aes_ctr_enc_192_avx_by8)
SYM_FUNC_START(aes_ctr_enc_192_avx_by8)
/* call the aes main loop */
do_aes_ctrmain KEY_192
ENDPROC(aes_ctr_enc_192_avx_by8)
SYM_FUNC_END(aes_ctr_enc_192_avx_by8)
/*
* routine to do AES256 CTR enc/decrypt "by8"
@ -570,8 +570,8 @@ ENDPROC(aes_ctr_enc_192_avx_by8)
* aes_ctr_enc_256_avx_by8(void *in, void *iv, void *keys, void *out,
* unsigned int num_bytes)
*/
ENTRY(aes_ctr_enc_256_avx_by8)
SYM_FUNC_START(aes_ctr_enc_256_avx_by8)
/* call the aes main loop */
do_aes_ctrmain KEY_256
ENDPROC(aes_ctr_enc_256_avx_by8)
SYM_FUNC_END(aes_ctr_enc_256_avx_by8)

114
arch/x86/crypto/aesni-intel_asm.S
View File

@ -1592,7 +1592,7 @@ _esb_loop_\@:
* poly = x^128 + x^127 + x^126 + x^121 + 1
*
*****************************************************************************/
ENTRY(aesni_gcm_dec)
SYM_FUNC_START(aesni_gcm_dec)
FUNC_SAVE
GCM_INIT %arg6, arg7, arg8, arg9
@ -1600,7 +1600,7 @@ ENTRY(aesni_gcm_dec)
GCM_COMPLETE arg10, arg11
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_dec)
SYM_FUNC_END(aesni_gcm_dec)
/*****************************************************************************
@ -1680,7 +1680,7 @@ ENDPROC(aesni_gcm_dec)
*
* poly = x^128 + x^127 + x^126 + x^121 + 1
***************************************************************************/
ENTRY(aesni_gcm_enc)
SYM_FUNC_START(aesni_gcm_enc)
FUNC_SAVE
GCM_INIT %arg6, arg7, arg8, arg9
@ -1689,7 +1689,7 @@ ENTRY(aesni_gcm_enc)
GCM_COMPLETE arg10, arg11
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_enc)
SYM_FUNC_END(aesni_gcm_enc)
/*****************************************************************************
* void aesni_gcm_init(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
@ -1702,12 +1702,12 @@ ENDPROC(aesni_gcm_enc)
* const u8 *aad, // Additional Authentication Data (AAD)
* u64 aad_len) // Length of AAD in bytes.
*/
ENTRY(aesni_gcm_init)
SYM_FUNC_START(aesni_gcm_init)
FUNC_SAVE
GCM_INIT %arg3, %arg4,%arg5, %arg6
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_init)
SYM_FUNC_END(aesni_gcm_init)
/*****************************************************************************
* void aesni_gcm_enc_update(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
@ -1717,12 +1717,12 @@ ENDPROC(aesni_gcm_init)
* const u8 *in, // Plaintext input
* u64 plaintext_len, // Length of data in bytes for encryption.
*/
ENTRY(aesni_gcm_enc_update)
SYM_FUNC_START(aesni_gcm_enc_update)
FUNC_SAVE
GCM_ENC_DEC enc
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_enc_update)
SYM_FUNC_END(aesni_gcm_enc_update)
/*****************************************************************************
* void aesni_gcm_dec_update(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
@ -1732,12 +1732,12 @@ ENDPROC(aesni_gcm_enc_update)
* const u8 *in, // Plaintext input
* u64 plaintext_len, // Length of data in bytes for encryption.
*/
ENTRY(aesni_gcm_dec_update)
SYM_FUNC_START(aesni_gcm_dec_update)
FUNC_SAVE
GCM_ENC_DEC dec
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_dec_update)
SYM_FUNC_END(aesni_gcm_dec_update)
/*****************************************************************************
* void aesni_gcm_finalize(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
@ -1747,19 +1747,18 @@ ENDPROC(aesni_gcm_dec_update)
* u64 auth_tag_len); // Authenticated Tag Length in bytes. Valid values are 16 (most likely),
* // 12 or 8.
*/
ENTRY(aesni_gcm_finalize)
SYM_FUNC_START(aesni_gcm_finalize)
FUNC_SAVE
GCM_COMPLETE %arg3 %arg4
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_finalize)
SYM_FUNC_END(aesni_gcm_finalize)
#endif
.align 4
_key_expansion_128:
_key_expansion_256a:
SYM_FUNC_START_LOCAL_ALIAS(_key_expansion_128)
SYM_FUNC_START_LOCAL(_key_expansion_256a)
pshufd $0b11111111, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
@ -1769,11 +1768,10 @@ _key_expansion_256a:
movaps %xmm0, (TKEYP)
add $0x10, TKEYP
ret
ENDPROC(_key_expansion_128)
ENDPROC(_key_expansion_256a)
SYM_FUNC_END(_key_expansion_256a)
SYM_FUNC_END_ALIAS(_key_expansion_128)
.align 4
_key_expansion_192a:
SYM_FUNC_START_LOCAL(_key_expansion_192a)
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
@ -1795,10 +1793,9 @@ _key_expansion_192a:
movaps %xmm1, 0x10(TKEYP)
add $0x20, TKEYP
ret
ENDPROC(_key_expansion_192a)
SYM_FUNC_END(_key_expansion_192a)
.align 4
_key_expansion_192b:
SYM_FUNC_START_LOCAL(_key_expansion_192b)
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
@ -1815,10 +1812,9 @@ _key_expansion_192b:
movaps %xmm0, (TKEYP)
add $0x10, TKEYP
ret
ENDPROC(_key_expansion_192b)
SYM_FUNC_END(_key_expansion_192b)
.align 4
_key_expansion_256b:
SYM_FUNC_START_LOCAL(_key_expansion_256b)
pshufd $0b10101010, %xmm1, %xmm1
shufps $0b00010000, %xmm2, %xmm4
pxor %xmm4, %xmm2
@ -1828,13 +1824,13 @@ _key_expansion_256b:
movaps %xmm2, (TKEYP)
add $0x10, TKEYP
ret
ENDPROC(_key_expansion_256b)
SYM_FUNC_END(_key_expansion_256b)
/*
* int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
* unsigned int key_len)
*/
ENTRY(aesni_set_key)
SYM_FUNC_START(aesni_set_key)
FRAME_BEGIN
#ifndef __x86_64__
pushl KEYP
@ -1943,12 +1939,12 @@ ENTRY(aesni_set_key)
#endif
FRAME_END
ret
ENDPROC(aesni_set_key)
SYM_FUNC_END(aesni_set_key)
/*
* void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
*/
ENTRY(aesni_enc)
SYM_FUNC_START(aesni_enc)
FRAME_BEGIN
#ifndef __x86_64__
pushl KEYP
@ -1967,7 +1963,7 @@ ENTRY(aesni_enc)
#endif
FRAME_END
ret
ENDPROC(aesni_enc)
SYM_FUNC_END(aesni_enc)
/*
* _aesni_enc1: internal ABI
@ -1981,8 +1977,7 @@ ENDPROC(aesni_enc)
* KEY
* TKEYP (T1)
*/
.align 4
_aesni_enc1:
SYM_FUNC_START_LOCAL(_aesni_enc1)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE # round 0
@ -2025,7 +2020,7 @@ _aesni_enc1:
movaps 0x70(TKEYP), KEY
AESENCLAST KEY STATE
ret
ENDPROC(_aesni_enc1)
SYM_FUNC_END(_aesni_enc1)
/*
* _aesni_enc4: internal ABI
@ -2045,8 +2040,7 @@ ENDPROC(_aesni_enc1)
* KEY
* TKEYP (T1)
*/
.align 4
_aesni_enc4:
SYM_FUNC_START_LOCAL(_aesni_enc4)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE1 # round 0
@ -2134,12 +2128,12 @@ _aesni_enc4:
AESENCLAST KEY STATE3
AESENCLAST KEY STATE4
ret
ENDPROC(_aesni_enc4)
SYM_FUNC_END(_aesni_enc4)
/*
* void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
*/
ENTRY(aesni_dec)
SYM_FUNC_START(aesni_dec)
FRAME_BEGIN
#ifndef __x86_64__
pushl KEYP
@ -2159,7 +2153,7 @@ ENTRY(aesni_dec)
#endif
FRAME_END
ret
ENDPROC(aesni_dec)
SYM_FUNC_END(aesni_dec)
/*
* _aesni_dec1: internal ABI
@ -2173,8 +2167,7 @@ ENDPROC(aesni_dec)
* KEY
* TKEYP (T1)
*/
.align 4
_aesni_dec1:
SYM_FUNC_START_LOCAL(_aesni_dec1)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE # round 0
@ -2217,7 +2210,7 @@ _aesni_dec1:
movaps 0x70(TKEYP), KEY
AESDECLAST KEY STATE
ret
ENDPROC(_aesni_dec1)
SYM_FUNC_END(_aesni_dec1)
/*
* _aesni_dec4: internal ABI
@ -2237,8 +2230,7 @@ ENDPROC(_aesni_dec1)
* KEY
* TKEYP (T1)
*/
.align 4
_aesni_dec4:
SYM_FUNC_START_LOCAL(_aesni_dec4)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE1 # round 0
@ -2326,13 +2318,13 @@ _aesni_dec4:
AESDECLAST KEY STATE3
AESDECLAST KEY STATE4
ret
ENDPROC(_aesni_dec4)
SYM_FUNC_END(_aesni_dec4)
/*
* void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len)
*/
ENTRY(aesni_ecb_enc)
SYM_FUNC_START(aesni_ecb_enc)
FRAME_BEGIN
#ifndef __x86_64__
pushl LEN
@ -2386,13 +2378,13 @@ ENTRY(aesni_ecb_enc)
#endif
FRAME_END
ret
ENDPROC(aesni_ecb_enc)
SYM_FUNC_END(aesni_ecb_enc)
/*
* void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len);
*/
ENTRY(aesni_ecb_dec)
SYM_FUNC_START(aesni_ecb_dec)
FRAME_BEGIN
#ifndef __x86_64__
pushl LEN
@ -2447,13 +2439,13 @@ ENTRY(aesni_ecb_dec)
#endif
FRAME_END
ret
ENDPROC(aesni_ecb_dec)
SYM_FUNC_END(aesni_ecb_dec)
/*
* void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
ENTRY(aesni_cbc_enc)
SYM_FUNC_START(aesni_cbc_enc)
FRAME_BEGIN
#ifndef __x86_64__
pushl IVP
@ -2491,13 +2483,13 @@ ENTRY(aesni_cbc_enc)
#endif
FRAME_END
ret
ENDPROC(aesni_cbc_enc)
SYM_FUNC_END(aesni_cbc_enc)
/*
* void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
ENTRY(aesni_cbc_dec)
SYM_FUNC_START(aesni_cbc_dec)
FRAME_BEGIN
#ifndef __x86_64__
pushl IVP
@ -2584,7 +2576,7 @@ ENTRY(aesni_cbc_dec)
#endif
FRAME_END
ret
ENDPROC(aesni_cbc_dec)
SYM_FUNC_END(aesni_cbc_dec)
#ifdef __x86_64__
.pushsection .rodata
@ -2604,8 +2596,7 @@ ENDPROC(aesni_cbc_dec)
* INC: == 1, in little endian
* BSWAP_MASK == endian swapping mask
*/
.align 4
_aesni_inc_init:
SYM_FUNC_START_LOCAL(_aesni_inc_init)
movaps .Lbswap_mask, BSWAP_MASK
movaps IV, CTR
PSHUFB_XMM BSWAP_MASK CTR
@ -2613,7 +2604,7 @@ _aesni_inc_init:
MOVQ_R64_XMM TCTR_LOW INC
MOVQ_R64_XMM CTR TCTR_LOW
ret
ENDPROC(_aesni_inc_init)
SYM_FUNC_END(_aesni_inc_init)
/*
* _aesni_inc: internal ABI
@ -2630,8 +2621,7 @@ ENDPROC(_aesni_inc_init)
* CTR: == output IV, in little endian
* TCTR_LOW: == lower qword of CTR
*/
.align 4
_aesni_inc:
SYM_FUNC_START_LOCAL(_aesni_inc)
paddq INC, CTR
add $1, TCTR_LOW
jnc .Linc_low
@ -2642,13 +2632,13 @@ _aesni_inc:
movaps CTR, IV
PSHUFB_XMM BSWAP_MASK IV
ret
ENDPROC(_aesni_inc)
SYM_FUNC_END(_aesni_inc)
/*
* void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
ENTRY(aesni_ctr_enc)
SYM_FUNC_START(aesni_ctr_enc)
FRAME_BEGIN
cmp $16, LEN
jb .Lctr_enc_just_ret
@ -2705,7 +2695,7 @@ ENTRY(aesni_ctr_enc)
.Lctr_enc_just_ret:
FRAME_END
ret
ENDPROC(aesni_ctr_enc)
SYM_FUNC_END(aesni_ctr_enc)
/*
* _aesni_gf128mul_x_ble: internal ABI
@ -2729,7 +2719,7 @@ ENDPROC(aesni_ctr_enc)
* void aesni_xts_crypt8(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* bool enc, u8 *iv)
*/
ENTRY(aesni_xts_crypt8)
SYM_FUNC_START(aesni_xts_crypt8)
FRAME_BEGIN
cmpb $0, %cl
movl $0, %ecx
@ -2833,6 +2823,6 @@ ENTRY(aesni_xts_crypt8)
FRAME_END
ret
ENDPROC(aesni_xts_crypt8)
SYM_FUNC_END(aesni_xts_crypt8)
#endif

32
arch/x86/crypto/aesni-intel_avx-x86_64.S
View File

@ -1775,12 +1775,12 @@ _initial_blocks_done\@:
# const u8 *aad, /* Additional Authentication Data (AAD)*/
# u64 aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
#############################################################
ENTRY(aesni_gcm_init_avx_gen2)
SYM_FUNC_START(aesni_gcm_init_avx_gen2)
FUNC_SAVE
INIT GHASH_MUL_AVX, PRECOMPUTE_AVX
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_init_avx_gen2)
SYM_FUNC_END(aesni_gcm_init_avx_gen2)
###############################################################################
#void aesni_gcm_enc_update_avx_gen2(
@ -1790,7 +1790,7 @@ ENDPROC(aesni_gcm_init_avx_gen2)
# const u8 *in, /* Plaintext input */
# u64 plaintext_len) /* Length of data in Bytes for encryption. */
###############################################################################
ENTRY(aesni_gcm_enc_update_avx_gen2)
SYM_FUNC_START(aesni_gcm_enc_update_avx_gen2)
FUNC_SAVE
mov keysize, %eax
cmp $32, %eax
@ -1809,7 +1809,7 @@ key_256_enc_update:
GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, ENC, 13
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_enc_update_avx_gen2)
SYM_FUNC_END(aesni_gcm_enc_update_avx_gen2)
###############################################################################
#void aesni_gcm_dec_update_avx_gen2(
@ -1819,7 +1819,7 @@ ENDPROC(aesni_gcm_enc_update_avx_gen2)
# const u8 *in, /* Ciphertext input */
# u64 plaintext_len) /* Length of data in Bytes for encryption. */
###############################################################################
ENTRY(aesni_gcm_dec_update_avx_gen2)
SYM_FUNC_START(aesni_gcm_dec_update_avx_gen2)
FUNC_SAVE
mov keysize,%eax
cmp $32, %eax
@ -1838,7 +1838,7 @@ key_256_dec_update:
GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, DEC, 13
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_dec_update_avx_gen2)
SYM_FUNC_END(aesni_gcm_dec_update_avx_gen2)
###############################################################################
#void aesni_gcm_finalize_avx_gen2(
@ -1848,7 +1848,7 @@ ENDPROC(aesni_gcm_dec_update_avx_gen2)
# u64 auth_tag_len)# /* Authenticated Tag Length in bytes.
# Valid values are 16 (most likely), 12 or 8. */
###############################################################################
ENTRY(aesni_gcm_finalize_avx_gen2)
SYM_FUNC_START(aesni_gcm_finalize_avx_gen2)
FUNC_SAVE
mov keysize,%eax
cmp $32, %eax
@ -1867,7 +1867,7 @@ key_256_finalize:
GCM_COMPLETE GHASH_MUL_AVX, 13, arg3, arg4
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_finalize_avx_gen2)
SYM_FUNC_END(aesni_gcm_finalize_avx_gen2)
#endif /* CONFIG_AS_AVX */
@ -2746,12 +2746,12 @@ _initial_blocks_done\@:
# const u8 *aad, /* Additional Authentication Data (AAD)*/
# u64 aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
#############################################################
ENTRY(aesni_gcm_init_avx_gen4)
SYM_FUNC_START(aesni_gcm_init_avx_gen4)
FUNC_SAVE
INIT GHASH_MUL_AVX2, PRECOMPUTE_AVX2
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_init_avx_gen4)
SYM_FUNC_END(aesni_gcm_init_avx_gen4)
###############################################################################
#void aesni_gcm_enc_avx_gen4(
@ -2761,7 +2761,7 @@ ENDPROC(aesni_gcm_init_avx_gen4)
# const u8 *in, /* Plaintext input */
# u64 plaintext_len) /* Length of data in Bytes for encryption. */
###############################################################################
ENTRY(aesni_gcm_enc_update_avx_gen4)
SYM_FUNC_START(aesni_gcm_enc_update_avx_gen4)
FUNC_SAVE
mov keysize,%eax
cmp $32, %eax
@ -2780,7 +2780,7 @@ key_256_enc_update4:
GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, ENC, 13
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_enc_update_avx_gen4)
SYM_FUNC_END(aesni_gcm_enc_update_avx_gen4)
###############################################################################
#void aesni_gcm_dec_update_avx_gen4(
@ -2790,7 +2790,7 @@ ENDPROC(aesni_gcm_enc_update_avx_gen4)
# const u8 *in, /* Ciphertext input */
# u64 plaintext_len) /* Length of data in Bytes for encryption. */
###############################################################################
ENTRY(aesni_gcm_dec_update_avx_gen4)
SYM_FUNC_START(aesni_gcm_dec_update_avx_gen4)
FUNC_SAVE
mov keysize,%eax
cmp $32, %eax
@ -2809,7 +2809,7 @@ key_256_dec_update4:
GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, DEC, 13
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_dec_update_avx_gen4)
SYM_FUNC_END(aesni_gcm_dec_update_avx_gen4)
###############################################################################
#void aesni_gcm_finalize_avx_gen4(
@ -2819,7 +2819,7 @@ ENDPROC(aesni_gcm_dec_update_avx_gen4)
# u64 auth_tag_len)# /* Authenticated Tag Length in bytes.
# Valid values are 16 (most likely), 12 or 8. */
###############################################################################
ENTRY(aesni_gcm_finalize_avx_gen4)
SYM_FUNC_START(aesni_gcm_finalize_avx_gen4)
FUNC_SAVE
mov keysize,%eax
cmp $32, %eax
@ -2838,6 +2838,6 @@ key_256_finalize4:
GCM_COMPLETE GHASH_MUL_AVX2, 13, arg3, arg4
FUNC_RESTORE
ret
ENDPROC(aesni_gcm_finalize_avx_gen4)
SYM_FUNC_END(aesni_gcm_finalize_avx_gen4)
#endif /* CONFIG_AS_AVX2 */

8
arch/x86/crypto/blake2s-core.S
View File

@ -47,7 +47,7 @@ SIGMA2:
.text
#ifdef CONFIG_AS_SSSE3
ENTRY(blake2s_compress_ssse3)
SYM_FUNC_START(blake2s_compress_ssse3)
testq %rdx,%rdx
je .Lendofloop
movdqu (%rdi),%xmm0
@ -173,11 +173,11 @@ ENTRY(blake2s_compress_ssse3)
movdqu %xmm14,0x20(%rdi)
.Lendofloop:
ret
ENDPROC(blake2s_compress_ssse3)
SYM_FUNC_END(blake2s_compress_ssse3)
#endif /* CONFIG_AS_SSSE3 */
#ifdef CONFIG_AS_AVX512
ENTRY(blake2s_compress_avx512)
SYM_FUNC_START(blake2s_compress_avx512)
vmovdqu (%rdi),%xmm0
vmovdqu 0x10(%rdi),%xmm1
vmovdqu 0x20(%rdi),%xmm4
@ -254,5 +254,5 @@ ENTRY(blake2s_compress_avx512)
vmovdqu %xmm4,0x20(%rdi)
vzeroupper
retq
ENDPROC(blake2s_compress_avx512)
SYM_FUNC_END(blake2s_compress_avx512)
#endif /* CONFIG_AS_AVX512 */

16
arch/x86/crypto/blowfish-x86_64-asm_64.S
View File

@ -103,7 +103,7 @@
bswapq RX0; \
xorq RX0, (RIO);
ENTRY(__blowfish_enc_blk)
SYM_FUNC_START(__blowfish_enc_blk)
/* input:
* %rdi: ctx
* %rsi: dst
@ -139,9 +139,9 @@ ENTRY(__blowfish_enc_blk)
.L__enc_xor:
xor_block();
ret;
ENDPROC(__blowfish_enc_blk)
SYM_FUNC_END(__blowfish_enc_blk)
ENTRY(blowfish_dec_blk)
SYM_FUNC_START(blowfish_dec_blk)
/* input:
* %rdi: ctx
* %rsi: dst
@ -171,7 +171,7 @@ ENTRY(blowfish_dec_blk)
movq %r11, %r12;
ret;
ENDPROC(blowfish_dec_blk)
SYM_FUNC_END(blowfish_dec_blk)
/**********************************************************************
4-way blowfish, four blocks parallel
@ -283,7 +283,7 @@ ENDPROC(blowfish_dec_blk)
bswapq RX3; \
xorq RX3, 24(RIO);
ENTRY(__blowfish_enc_blk_4way)
SYM_FUNC_START(__blowfish_enc_blk_4way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -330,9 +330,9 @@ ENTRY(__blowfish_enc_blk_4way)
popq %rbx;
popq %r12;
ret;
ENDPROC(__blowfish_enc_blk_4way)
SYM_FUNC_END(__blowfish_enc_blk_4way)
ENTRY(blowfish_dec_blk_4way)
SYM_FUNC_START(blowfish_dec_blk_4way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -365,4 +365,4 @@ ENTRY(blowfish_dec_blk_4way)
popq %r12;
ret;
ENDPROC(blowfish_dec_blk_4way)
SYM_FUNC_END(blowfish_dec_blk_4way)

44
arch/x86/crypto/camellia-aesni-avx-asm_64.S
View File

@ -189,20 +189,20 @@
* larger and would only be 0.5% faster (on sandy-bridge).
*/
.align 8
roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
SYM_FUNC_START_LOCAL(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
%xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
%rcx, (%r9));
ret;
ENDPROC(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
SYM_FUNC_END(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
.align 8
roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
SYM_FUNC_START_LOCAL(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
%xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
%rax, (%r9));
ret;
ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
SYM_FUNC_END(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
/*
* IN/OUT:
@ -722,7 +722,7 @@ ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
.text
.align 8
__camellia_enc_blk16:
SYM_FUNC_START_LOCAL(__camellia_enc_blk16)
/* input:
* %rdi: ctx, CTX
* %rax: temporary storage, 256 bytes
@ -806,10 +806,10 @@ __camellia_enc_blk16:
%xmm15, %rax, %rcx, 24);
jmp .Lenc_done;
ENDPROC(__camellia_enc_blk16)
SYM_FUNC_END(__camellia_enc_blk16)
.align 8
__camellia_dec_blk16:
SYM_FUNC_START_LOCAL(__camellia_dec_blk16)
/* input:
* %rdi: ctx, CTX
* %rax: temporary storage, 256 bytes
@ -891,9 +891,9 @@ __camellia_dec_blk16:
((key_table + (24) * 8) + 4)(CTX));
jmp .Ldec_max24;
ENDPROC(__camellia_dec_blk16)
SYM_FUNC_END(__camellia_dec_blk16)
ENTRY(camellia_ecb_enc_16way)
SYM_FUNC_START(camellia_ecb_enc_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -916,9 +916,9 @@ ENTRY(camellia_ecb_enc_16way)
FRAME_END
ret;
ENDPROC(camellia_ecb_enc_16way)
SYM_FUNC_END(camellia_ecb_enc_16way)
ENTRY(camellia_ecb_dec_16way)
SYM_FUNC_START(camellia_ecb_dec_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -946,9 +946,9 @@ ENTRY(camellia_ecb_dec_16way)
FRAME_END
ret;
ENDPROC(camellia_ecb_dec_16way)
SYM_FUNC_END(camellia_ecb_dec_16way)
ENTRY(camellia_cbc_dec_16way)
SYM_FUNC_START(camellia_cbc_dec_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -997,7 +997,7 @@ ENTRY(camellia_cbc_dec_16way)
FRAME_END
ret;
ENDPROC(camellia_cbc_dec_16way)
SYM_FUNC_END(camellia_cbc_dec_16way)
#define inc_le128(x, minus_one, tmp) \
vpcmpeqq minus_one, x, tmp; \
@ -1005,7 +1005,7 @@ ENDPROC(camellia_cbc_dec_16way)
vpslldq $8, tmp, tmp; \
vpsubq tmp, x, x;
ENTRY(camellia_ctr_16way)
SYM_FUNC_START(camellia_ctr_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -1110,7 +1110,7 @@ ENTRY(camellia_ctr_16way)
FRAME_END
ret;
ENDPROC(camellia_ctr_16way)
SYM_FUNC_END(camellia_ctr_16way)
#define gf128mul_x_ble(iv, mask, tmp) \
vpsrad $31, iv, tmp; \
@ -1120,7 +1120,7 @@ ENDPROC(camellia_ctr_16way)
vpxor tmp, iv, iv;
.align 8
camellia_xts_crypt_16way:
SYM_FUNC_START_LOCAL(camellia_xts_crypt_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -1254,9 +1254,9 @@ camellia_xts_crypt_16way:
FRAME_END
ret;
ENDPROC(camellia_xts_crypt_16way)
SYM_FUNC_END(camellia_xts_crypt_16way)
ENTRY(camellia_xts_enc_16way)
SYM_FUNC_START(camellia_xts_enc_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -1268,9 +1268,9 @@ ENTRY(camellia_xts_enc_16way)
leaq __camellia_enc_blk16, %r9;
jmp camellia_xts_crypt_16way;
ENDPROC(camellia_xts_enc_16way)
SYM_FUNC_END(camellia_xts_enc_16way)
ENTRY(camellia_xts_dec_16way)
SYM_FUNC_START(camellia_xts_dec_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -1286,4 +1286,4 @@ ENTRY(camellia_xts_dec_16way)
leaq __camellia_dec_blk16, %r9;
jmp camellia_xts_crypt_16way;
ENDPROC(camellia_xts_dec_16way)
SYM_FUNC_END(camellia_xts_dec_16way)

44
arch/x86/crypto/camellia-aesni-avx2-asm_64.S
View File

@ -223,20 +223,20 @@
* larger and would only marginally faster.
*/
.align 8
roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd:
SYM_FUNC_START_LOCAL(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
%rcx, (%r9));
ret;
ENDPROC(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
SYM_FUNC_END(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
.align 8
roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab:
SYM_FUNC_START_LOCAL(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
%ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
%rax, (%r9));
ret;
ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
SYM_FUNC_END(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
/*
* IN/OUT:
@ -760,7 +760,7 @@ ENDPROC(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
.text
.align 8
__camellia_enc_blk32:
SYM_FUNC_START_LOCAL(__camellia_enc_blk32)
/* input:
* %rdi: ctx, CTX
* %rax: temporary storage, 512 bytes
@ -844,10 +844,10 @@ __camellia_enc_blk32:
%ymm15, %rax, %rcx, 24);
jmp .Lenc_done;
ENDPROC(__camellia_enc_blk32)
SYM_FUNC_END(__camellia_enc_blk32)
.align 8
__camellia_dec_blk32:
SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
/* input:
* %rdi: ctx, CTX
* %rax: temporary storage, 512 bytes
@ -929,9 +929,9 @@ __camellia_dec_blk32:
((key_table + (24) * 8) + 4)(CTX));
jmp .Ldec_max24;
ENDPROC(__camellia_dec_blk32)
SYM_FUNC_END(__camellia_dec_blk32)
ENTRY(camellia_ecb_enc_32way)
SYM_FUNC_START(camellia_ecb_enc_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -958,9 +958,9 @@ ENTRY(camellia_ecb_enc_32way)
FRAME_END
ret;
ENDPROC(camellia_ecb_enc_32way)
SYM_FUNC_END(camellia_ecb_enc_32way)
ENTRY(camellia_ecb_dec_32way)
SYM_FUNC_START(camellia_ecb_dec_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -992,9 +992,9 @@ ENTRY(camellia_ecb_dec_32way)
FRAME_END
ret;
ENDPROC(camellia_ecb_dec_32way)
SYM_FUNC_END(camellia_ecb_dec_32way)
ENTRY(camellia_cbc_dec_32way)
SYM_FUNC_START(camellia_cbc_dec_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -1060,7 +1060,7 @@ ENTRY(camellia_cbc_dec_32way)
FRAME_END
ret;
ENDPROC(camellia_cbc_dec_32way)
SYM_FUNC_END(camellia_cbc_dec_32way)
#define inc_le128(x, minus_one, tmp) \
vpcmpeqq minus_one, x, tmp; \
@ -1076,7 +1076,7 @@ ENDPROC(camellia_cbc_dec_32way)
vpslldq $8, tmp1, tmp1; \
vpsubq tmp1, x, x;
ENTRY(camellia_ctr_32way)
SYM_FUNC_START(camellia_ctr_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -1200,7 +1200,7 @@ ENTRY(camellia_ctr_32way)
FRAME_END
ret;
ENDPROC(camellia_ctr_32way)
SYM_FUNC_END(camellia_ctr_32way)
#define gf128mul_x_ble(iv, mask, tmp) \
vpsrad $31, iv, tmp; \
@ -1222,7 +1222,7 @@ ENDPROC(camellia_ctr_32way)
vpxor tmp1, iv, iv;
.align 8
camellia_xts_crypt_32way:
SYM_FUNC_START_LOCAL(camellia_xts_crypt_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -1367,9 +1367,9 @@ camellia_xts_crypt_32way:
FRAME_END
ret;
ENDPROC(camellia_xts_crypt_32way)
SYM_FUNC_END(camellia_xts_crypt_32way)
ENTRY(camellia_xts_enc_32way)
SYM_FUNC_START(camellia_xts_enc_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -1382,9 +1382,9 @@ ENTRY(camellia_xts_enc_32way)
leaq __camellia_enc_blk32, %r9;
jmp camellia_xts_crypt_32way;
ENDPROC(camellia_xts_enc_32way)
SYM_FUNC_END(camellia_xts_enc_32way)
ENTRY(camellia_xts_dec_32way)
SYM_FUNC_START(camellia_xts_dec_32way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (32 blocks)
@ -1400,4 +1400,4 @@ ENTRY(camellia_xts_dec_32way)
leaq __camellia_dec_blk32, %r9;
jmp camellia_xts_crypt_32way;
ENDPROC(camellia_xts_dec_32way)
SYM_FUNC_END(camellia_xts_dec_32way)

16
arch/x86/crypto/camellia-x86_64-asm_64.S
View File

@ -175,7 +175,7 @@
bswapq RAB0; \
movq RAB0, 4*2(RIO);
ENTRY(__camellia_enc_blk)
SYM_FUNC_START(__camellia_enc_blk)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -220,9 +220,9 @@ ENTRY(__camellia_enc_blk)
movq RR12, %r12;
ret;
ENDPROC(__camellia_enc_blk)
SYM_FUNC_END(__camellia_enc_blk)
ENTRY(camellia_dec_blk)
SYM_FUNC_START(camellia_dec_blk)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -258,7 +258,7 @@ ENTRY(camellia_dec_blk)
movq RR12, %r12;
ret;
ENDPROC(camellia_dec_blk)
SYM_FUNC_END(camellia_dec_blk)
/**********************************************************************
2-way camellia
@ -409,7 +409,7 @@ ENDPROC(camellia_dec_blk)
bswapq RAB1; \
movq RAB1, 12*2(RIO);
ENTRY(__camellia_enc_blk_2way)
SYM_FUNC_START(__camellia_enc_blk_2way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -456,9 +456,9 @@ ENTRY(__camellia_enc_blk_2way)
movq RR12, %r12;
popq %rbx;
ret;
ENDPROC(__camellia_enc_blk_2way)
SYM_FUNC_END(__camellia_enc_blk_2way)
ENTRY(camellia_dec_blk_2way)
SYM_FUNC_START(camellia_dec_blk_2way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -496,4 +496,4 @@ ENTRY(camellia_dec_blk_2way)
movq RR12, %r12;
movq RXOR, %rbx;
ret;
ENDPROC(camellia_dec_blk_2way)
SYM_FUNC_END(camellia_dec_blk_2way)

24
arch/x86/crypto/cast5-avx-x86_64-asm_64.S
View File

@ -209,7 +209,7 @@
.text
.align 16
__cast5_enc_blk16:
SYM_FUNC_START_LOCAL(__cast5_enc_blk16)
/* input:
* %rdi: ctx
* RL1: blocks 1 and 2
@ -280,10 +280,10 @@ __cast5_enc_blk16:
outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
ret;
ENDPROC(__cast5_enc_blk16)
SYM_FUNC_END(__cast5_enc_blk16)
.align 16
__cast5_dec_blk16:
SYM_FUNC_START_LOCAL(__cast5_dec_blk16)
/* input:
* %rdi: ctx
* RL1: encrypted blocks 1 and 2
@ -357,9 +357,9 @@ __cast5_dec_blk16:
.L__skip_dec:
vpsrldq $4, RKR, RKR;
jmp .L__dec_tail;
ENDPROC(__cast5_dec_blk16)
SYM_FUNC_END(__cast5_dec_blk16)
ENTRY(cast5_ecb_enc_16way)
SYM_FUNC_START(cast5_ecb_enc_16way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -394,9 +394,9 @@ ENTRY(cast5_ecb_enc_16way)
popq %r15;
FRAME_END
ret;
ENDPROC(cast5_ecb_enc_16way)
SYM_FUNC_END(cast5_ecb_enc_16way)
ENTRY(cast5_ecb_dec_16way)
SYM_FUNC_START(cast5_ecb_dec_16way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -432,9 +432,9 @@ ENTRY(cast5_ecb_dec_16way)
popq %r15;
FRAME_END
ret;
ENDPROC(cast5_ecb_dec_16way)
SYM_FUNC_END(cast5_ecb_dec_16way)
ENTRY(cast5_cbc_dec_16way)
SYM_FUNC_START(cast5_cbc_dec_16way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -484,9 +484,9 @@ ENTRY(cast5_cbc_dec_16way)
popq %r12;
FRAME_END
ret;
ENDPROC(cast5_cbc_dec_16way)
SYM_FUNC_END(cast5_cbc_dec_16way)
ENTRY(cast5_ctr_16way)
SYM_FUNC_START(cast5_ctr_16way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -560,4 +560,4 @@ ENTRY(cast5_ctr_16way)
popq %r12;
FRAME_END
ret;
ENDPROC(cast5_ctr_16way)
SYM_FUNC_END(cast5_ctr_16way)

32
arch/x86/crypto/cast6-avx-x86_64-asm_64.S
View File

@ -247,7 +247,7 @@
.text
.align 8
__cast6_enc_blk8:
SYM_FUNC_START_LOCAL(__cast6_enc_blk8)
/* input:
* %rdi: ctx
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
@ -292,10 +292,10 @@ __cast6_enc_blk8:
outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
ret;
ENDPROC(__cast6_enc_blk8)
SYM_FUNC_END(__cast6_enc_blk8)
.align 8
__cast6_dec_blk8:
SYM_FUNC_START_LOCAL(__cast6_dec_blk8)
/* input:
* %rdi: ctx
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
@ -339,9 +339,9 @@ __cast6_dec_blk8:
outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
ret;
ENDPROC(__cast6_dec_blk8)
SYM_FUNC_END(__cast6_dec_blk8)
ENTRY(cast6_ecb_enc_8way)
SYM_FUNC_START(cast6_ecb_enc_8way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -362,9 +362,9 @@ ENTRY(cast6_ecb_enc_8way)
popq %r15;
FRAME_END
ret;
ENDPROC(cast6_ecb_enc_8way)
SYM_FUNC_END(cast6_ecb_enc_8way)
ENTRY(cast6_ecb_dec_8way)
SYM_FUNC_START(cast6_ecb_dec_8way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -385,9 +385,9 @@ ENTRY(cast6_ecb_dec_8way)
popq %r15;
FRAME_END
ret;
ENDPROC(cast6_ecb_dec_8way)
SYM_FUNC_END(cast6_ecb_dec_8way)
ENTRY(cast6_cbc_dec_8way)
SYM_FUNC_START(cast6_cbc_dec_8way)
/* input:
* %rdi: ctx
* %rsi: dst
@ -411,9 +411,9 @@ ENTRY(cast6_cbc_dec_8way)
popq %r12;
FRAME_END
ret;
ENDPROC(cast6_cbc_dec_8way)
SYM_FUNC_END(cast6_cbc_dec_8way)
ENTRY(cast6_ctr_8way)
SYM_FUNC_START(cast6_ctr_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -439,9 +439,9 @@ ENTRY(cast6_ctr_8way)
popq %r12;
FRAME_END
ret;
ENDPROC(cast6_ctr_8way)
SYM_FUNC_END(cast6_ctr_8way)
ENTRY(cast6_xts_enc_8way)
SYM_FUNC_START(cast6_xts_enc_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -466,9 +466,9 @@ ENTRY(cast6_xts_enc_8way)
popq %r15;
FRAME_END
ret;
ENDPROC(cast6_xts_enc_8way)
SYM_FUNC_END(cast6_xts_enc_8way)
ENTRY(cast6_xts_dec_8way)
SYM_FUNC_START(cast6_xts_dec_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -493,4 +493,4 @@ ENTRY(cast6_xts_dec_8way)
popq %r15;
FRAME_END
ret;
ENDPROC(cast6_xts_dec_8way)
SYM_FUNC_END(cast6_xts_dec_8way)

12
arch/x86/crypto/chacha-avx2-x86_64.S
View File

@ -34,7 +34,7 @@ CTR4BL: .octa 0x00000000000000000000000000000002
.text
ENTRY(chacha_2block_xor_avx2)
SYM_FUNC_START(chacha_2block_xor_avx2)
# %rdi: Input state matrix, s
# %rsi: up to 2 data blocks output, o
# %rdx: up to 2 data blocks input, i
@ -224,9 +224,9 @@ ENTRY(chacha_2block_xor_avx2)
lea -8(%r10),%rsp
jmp .Ldone2
ENDPROC(chacha_2block_xor_avx2)
SYM_FUNC_END(chacha_2block_xor_avx2)
ENTRY(chacha_4block_xor_avx2)
SYM_FUNC_START(chacha_4block_xor_avx2)
# %rdi: Input state matrix, s
# %rsi: up to 4 data blocks output, o
# %rdx: up to 4 data blocks input, i
@ -529,9 +529,9 @@ ENTRY(chacha_4block_xor_avx2)
lea -8(%r10),%rsp
jmp .Ldone4
ENDPROC(chacha_4block_xor_avx2)
SYM_FUNC_END(chacha_4block_xor_avx2)
ENTRY(chacha_8block_xor_avx2)
SYM_FUNC_START(chacha_8block_xor_avx2)
# %rdi: Input state matrix, s
# %rsi: up to 8 data blocks output, o
# %rdx: up to 8 data blocks input, i
@ -1018,4 +1018,4 @@ ENTRY(chacha_8block_xor_avx2)
jmp .Ldone8
ENDPROC(chacha_8block_xor_avx2)
SYM_FUNC_END(chacha_8block_xor_avx2)

12
arch/x86/crypto/chacha-avx512vl-x86_64.S
View File

@ -24,7 +24,7 @@ CTR8BL: .octa 0x00000003000000020000000100000000
.text
ENTRY(chacha_2block_xor_avx512vl)
SYM_FUNC_START(chacha_2block_xor_avx512vl)
# %rdi: Input state matrix, s
# %rsi: up to 2 data blocks output, o
# %rdx: up to 2 data blocks input, i
@ -187,9 +187,9 @@ ENTRY(chacha_2block_xor_avx512vl)
jmp .Ldone2
ENDPROC(chacha_2block_xor_avx512vl)
SYM_FUNC_END(chacha_2block_xor_avx512vl)
ENTRY(chacha_4block_xor_avx512vl)
SYM_FUNC_START(chacha_4block_xor_avx512vl)
# %rdi: Input state matrix, s
# %rsi: up to 4 data blocks output, o
# %rdx: up to 4 data blocks input, i
@ -453,9 +453,9 @@ ENTRY(chacha_4block_xor_avx512vl)
jmp .Ldone4
ENDPROC(chacha_4block_xor_avx512vl)
SYM_FUNC_END(chacha_4block_xor_avx512vl)
ENTRY(chacha_8block_xor_avx512vl)
SYM_FUNC_START(chacha_8block_xor_avx512vl)
# %rdi: Input state matrix, s
# %rsi: up to 8 data blocks output, o
# %rdx: up to 8 data blocks input, i
@ -833,4 +833,4 @@ ENTRY(chacha_8block_xor_avx512vl)
jmp .Ldone8
ENDPROC(chacha_8block_xor_avx512vl)
SYM_FUNC_END(chacha_8block_xor_avx512vl)

16
arch/x86/crypto/chacha-ssse3-x86_64.S
View File

@ -33,7 +33,7 @@ CTRINC: .octa 0x00000003000000020000000100000000
*
* Clobbers: %r8d, %xmm4-%xmm7
*/
chacha_permute:
SYM_FUNC_START_LOCAL(chacha_permute)
movdqa ROT8(%rip),%xmm4
movdqa ROT16(%rip),%xmm5
@ -109,9 +109,9 @@ chacha_permute:
jnz .Ldoubleround
ret
ENDPROC(chacha_permute)
SYM_FUNC_END(chacha_permute)
ENTRY(chacha_block_xor_ssse3)
SYM_FUNC_START(chacha_block_xor_ssse3)
# %rdi: Input state matrix, s
# %rsi: up to 1 data block output, o
# %rdx: up to 1 data block input, i
@ -197,9 +197,9 @@ ENTRY(chacha_block_xor_ssse3)
lea -8(%r10),%rsp
jmp .Ldone
ENDPROC(chacha_block_xor_ssse3)
SYM_FUNC_END(chacha_block_xor_ssse3)
ENTRY(hchacha_block_ssse3)
SYM_FUNC_START(hchacha_block_ssse3)
# %rdi: Input state matrix, s
# %rsi: output (8 32-bit words)
# %edx: nrounds
@ -218,9 +218,9 @@ ENTRY(hchacha_block_ssse3)
FRAME_END
ret
ENDPROC(hchacha_block_ssse3)
SYM_FUNC_END(hchacha_block_ssse3)
ENTRY(chacha_4block_xor_ssse3)
SYM_FUNC_START(chacha_4block_xor_ssse3)
# %rdi: Input state matrix, s
# %rsi: up to 4 data blocks output, o
# %rdx: up to 4 data blocks input, i
@ -788,4 +788,4 @@ ENTRY(chacha_4block_xor_ssse3)
jmp .Ldone4
ENDPROC(chacha_4block_xor_ssse3)
SYM_FUNC_END(chacha_4block_xor_ssse3)

4
arch/x86/crypto/crc32-pclmul_asm.S
View File

@ -103,7 +103,7 @@
* size_t len, uint crc32)
*/
ENTRY(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
SYM_FUNC_START(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
movdqa (BUF), %xmm1
movdqa 0x10(BUF), %xmm2
movdqa 0x20(BUF), %xmm3
@ -238,4 +238,4 @@ fold_64:
PEXTRD 0x01, %xmm1, %eax
ret
ENDPROC(crc32_pclmul_le_16)
SYM_FUNC_END(crc32_pclmul_le_16)

4
arch/x86/crypto/crc32c-pcl-intel-asm_64.S
View File

@ -74,7 +74,7 @@
# unsigned int crc_pcl(u8 *buffer, int len, unsigned int crc_init);
.text
ENTRY(crc_pcl)
SYM_FUNC_START(crc_pcl)
#define bufp %rdi
#define bufp_dw %edi
#define bufp_w %di
@ -311,7 +311,7 @@ do_return:
popq %rdi
popq %rbx
ret
ENDPROC(crc_pcl)
SYM_FUNC_END(crc_pcl)
.section .rodata, "a", @progbits
################################################################

4
arch/x86/crypto/crct10dif-pcl-asm_64.S
View File

@ -95,7 +95,7 @@
# Assumes len >= 16.
#
.align 16
ENTRY(crc_t10dif_pcl)
SYM_FUNC_START(crc_t10dif_pcl)
movdqa .Lbswap_mask(%rip), BSWAP_MASK
@ -280,7 +280,7 @@ ENTRY(crc_t10dif_pcl)
jge .Lfold_16_bytes_loop # 32 <= len <= 255
add $16, len
jmp .Lhandle_partial_segment # 17 <= len <= 31
ENDPROC(crc_t10dif_pcl)
SYM_FUNC_END(crc_t10dif_pcl)
.section .rodata, "a", @progbits
.align 16

8
arch/x86/crypto/des3_ede-asm_64.S
View File

@ -162,7 +162,7 @@
movl left##d, (io); \
movl right##d, 4(io);
ENTRY(des3_ede_x86_64_crypt_blk)
SYM_FUNC_START(des3_ede_x86_64_crypt_blk)
/* input:
* %rdi: round keys, CTX
* %rsi: dst
@ -244,7 +244,7 @@ ENTRY(des3_ede_x86_64_crypt_blk)
popq %rbx;
ret;
ENDPROC(des3_ede_x86_64_crypt_blk)
SYM_FUNC_END(des3_ede_x86_64_crypt_blk)
/***********************************************************************
* 3-way 3DES
@ -418,7 +418,7 @@ ENDPROC(des3_ede_x86_64_crypt_blk)
#define __movq(src, dst) \
movq src, dst;
ENTRY(des3_ede_x86_64_crypt_blk_3way)
SYM_FUNC_START(des3_ede_x86_64_crypt_blk_3way)
/* input:
* %rdi: ctx, round keys
* %rsi: dst (3 blocks)
@ -529,7 +529,7 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
popq %rbx;
ret;
ENDPROC(des3_ede_x86_64_crypt_blk_3way)
SYM_FUNC_END(des3_ede_x86_64_crypt_blk_3way)
.section .rodata, "a", @progbits
.align 16

12
arch/x86/crypto/ghash-clmulni-intel_asm.S
View File

@ -44,7 +44,7 @@
* T2
* T3
*/
__clmul_gf128mul_ble:
SYM_FUNC_START_LOCAL(__clmul_gf128mul_ble)
movaps DATA, T1
pshufd $0b01001110, DATA, T2
pshufd $0b01001110, SHASH, T3
@ -87,10 +87,10 @@ __clmul_gf128mul_ble:
pxor T2, T1
pxor T1, DATA
ret
ENDPROC(__clmul_gf128mul_ble)
SYM_FUNC_END(__clmul_gf128mul_ble)
/* void clmul_ghash_mul(char *dst, const u128 *shash) */
ENTRY(clmul_ghash_mul)
SYM_FUNC_START(clmul_ghash_mul)
FRAME_BEGIN
movups (%rdi), DATA
movups (%rsi), SHASH
@ -101,13 +101,13 @@ ENTRY(clmul_ghash_mul)
movups DATA, (%rdi)
FRAME_END
ret
ENDPROC(clmul_ghash_mul)
SYM_FUNC_END(clmul_ghash_mul)
/*
* void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
* const u128 *shash);
*/
ENTRY(clmul_ghash_update)
SYM_FUNC_START(clmul_ghash_update)
FRAME_BEGIN
cmp $16, %rdx
jb .Lupdate_just_ret # check length
@ -130,4 +130,4 @@ ENTRY(clmul_ghash_update)
.Lupdate_just_ret:
FRAME_END
ret
ENDPROC(clmul_ghash_update)
SYM_FUNC_END(clmul_ghash_update)

4
arch/x86/crypto/nh-avx2-x86_64.S
View File

@ -69,7 +69,7 @@
*
* It's guaranteed that message_len % 16 == 0.
*/
ENTRY(nh_avx2)
SYM_FUNC_START(nh_avx2)
vmovdqu 0x00(KEY), K0
vmovdqu 0x10(KEY), K1
@ -154,4 +154,4 @@ ENTRY(nh_avx2)
vpaddq T4, T0, T0
vmovdqu T0, (HASH)
ret
ENDPROC(nh_avx2)
SYM_FUNC_END(nh_avx2)

4
arch/x86/crypto/nh-sse2-x86_64.S
View File

@ -71,7 +71,7 @@
*
* It's guaranteed that message_len % 16 == 0.
*/
ENTRY(nh_sse2)
SYM_FUNC_START(nh_sse2)
movdqu 0x00(KEY), K0
movdqu 0x10(KEY), K1
@ -120,4 +120,4 @@ ENTRY(nh_sse2)
movdqu T0, 0x00(HASH)
movdqu T1, 0x10(HASH)
ret
ENDPROC(nh_sse2)
SYM_FUNC_END(nh_sse2)

4
arch/x86/crypto/poly1305-avx2-x86_64.S
View File

@ -79,7 +79,7 @@ ORMASK: .octa 0x00000000010000000000000001000000
#define d3 %r12
#define d4 %r13
ENTRY(poly1305_4block_avx2)
SYM_FUNC_START(poly1305_4block_avx2)
# %rdi: Accumulator h[5]
# %rsi: 64 byte input block m
# %rdx: Poly1305 key r[5]
@ -387,4 +387,4 @@ ENTRY(poly1305_4block_avx2)
pop %r12
pop %rbx
ret
ENDPROC(poly1305_4block_avx2)
SYM_FUNC_END(poly1305_4block_avx2)

8
arch/x86/crypto/poly1305-sse2-x86_64.S
View File

@ -46,7 +46,7 @@ ORMASK: .octa 0x00000000010000000000000001000000
#define d3 %r11
#define d4 %r12
ENTRY(poly1305_block_sse2)
SYM_FUNC_START(poly1305_block_sse2)
# %rdi: Accumulator h[5]
# %rsi: 16 byte input block m
# %rdx: Poly1305 key r[5]
@ -276,7 +276,7 @@ ENTRY(poly1305_block_sse2)
pop %r12
pop %rbx
ret
ENDPROC(poly1305_block_sse2)
SYM_FUNC_END(poly1305_block_sse2)
#define u0 0x00(%r8)
@ -301,7 +301,7 @@ ENDPROC(poly1305_block_sse2)
#undef d0
#define d0 %r13
ENTRY(poly1305_2block_sse2)
SYM_FUNC_START(poly1305_2block_sse2)
# %rdi: Accumulator h[5]
# %rsi: 16 byte input block m
# %rdx: Poly1305 key r[5]
@ -587,4 +587,4 @@ ENTRY(poly1305_2block_sse2)
pop %r12
pop %rbx
ret
ENDPROC(poly1305_2block_sse2)
SYM_FUNC_END(poly1305_2block_sse2)

32
arch/x86/crypto/serpent-avx-x86_64-asm_64.S
View File

@ -555,7 +555,7 @@
transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
.align 8
__serpent_enc_blk8_avx:
SYM_FUNC_START_LOCAL(__serpent_enc_blk8_avx)
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
@ -606,10 +606,10 @@ __serpent_enc_blk8_avx:
write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_enc_blk8_avx)
SYM_FUNC_END(__serpent_enc_blk8_avx)
.align 8
__serpent_dec_blk8_avx:
SYM_FUNC_START_LOCAL(__serpent_dec_blk8_avx)
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
@ -660,9 +660,9 @@ __serpent_dec_blk8_avx:
write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_dec_blk8_avx)
SYM_FUNC_END(__serpent_dec_blk8_avx)
ENTRY(serpent_ecb_enc_8way_avx)
SYM_FUNC_START(serpent_ecb_enc_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -678,9 +678,9 @@ ENTRY(serpent_ecb_enc_8way_avx)
FRAME_END
ret;
ENDPROC(serpent_ecb_enc_8way_avx)
SYM_FUNC_END(serpent_ecb_enc_8way_avx)
ENTRY(serpent_ecb_dec_8way_avx)
SYM_FUNC_START(serpent_ecb_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -696,9 +696,9 @@ ENTRY(serpent_ecb_dec_8way_avx)
FRAME_END
ret;
ENDPROC(serpent_ecb_dec_8way_avx)
SYM_FUNC_END(serpent_ecb_dec_8way_avx)
ENTRY(serpent_cbc_dec_8way_avx)
SYM_FUNC_START(serpent_cbc_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -714,9 +714,9 @@ ENTRY(serpent_cbc_dec_8way_avx)
FRAME_END
ret;
ENDPROC(serpent_cbc_dec_8way_avx)
SYM_FUNC_END(serpent_cbc_dec_8way_avx)
ENTRY(serpent_ctr_8way_avx)
SYM_FUNC_START(serpent_ctr_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -734,9 +734,9 @@ ENTRY(serpent_ctr_8way_avx)
FRAME_END
ret;
ENDPROC(serpent_ctr_8way_avx)
SYM_FUNC_END(serpent_ctr_8way_avx)
ENTRY(serpent_xts_enc_8way_avx)
SYM_FUNC_START(serpent_xts_enc_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -756,9 +756,9 @@ ENTRY(serpent_xts_enc_8way_avx)
FRAME_END
ret;
ENDPROC(serpent_xts_enc_8way_avx)
SYM_FUNC_END(serpent_xts_enc_8way_avx)
ENTRY(serpent_xts_dec_8way_avx)
SYM_FUNC_START(serpent_xts_dec_8way_avx)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -778,4 +778,4 @@ ENTRY(serpent_xts_dec_8way_avx)
FRAME_END
ret;
ENDPROC(serpent_xts_dec_8way_avx)
SYM_FUNC_END(serpent_xts_dec_8way_avx)

32
arch/x86/crypto/serpent-avx2-asm_64.S
View File

@ -561,7 +561,7 @@
transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
.align 8
__serpent_enc_blk16:
SYM_FUNC_START_LOCAL(__serpent_enc_blk16)
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: plaintext
@ -612,10 +612,10 @@ __serpent_enc_blk16:
write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_enc_blk16)
SYM_FUNC_END(__serpent_enc_blk16)
.align 8
__serpent_dec_blk16:
SYM_FUNC_START_LOCAL(__serpent_dec_blk16)
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext
@ -666,9 +666,9 @@ __serpent_dec_blk16:
write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_dec_blk16)
SYM_FUNC_END(__serpent_dec_blk16)
ENTRY(serpent_ecb_enc_16way)
SYM_FUNC_START(serpent_ecb_enc_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -688,9 +688,9 @@ ENTRY(serpent_ecb_enc_16way)
FRAME_END
ret;
ENDPROC(serpent_ecb_enc_16way)
SYM_FUNC_END(serpent_ecb_enc_16way)
ENTRY(serpent_ecb_dec_16way)
SYM_FUNC_START(serpent_ecb_dec_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -710,9 +710,9 @@ ENTRY(serpent_ecb_dec_16way)
FRAME_END
ret;
ENDPROC(serpent_ecb_dec_16way)
SYM_FUNC_END(serpent_ecb_dec_16way)
ENTRY(serpent_cbc_dec_16way)
SYM_FUNC_START(serpent_cbc_dec_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -733,9 +733,9 @@ ENTRY(serpent_cbc_dec_16way)
FRAME_END
ret;
ENDPROC(serpent_cbc_dec_16way)
SYM_FUNC_END(serpent_cbc_dec_16way)
ENTRY(serpent_ctr_16way)
SYM_FUNC_START(serpent_ctr_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -758,9 +758,9 @@ ENTRY(serpent_ctr_16way)
FRAME_END
ret;
ENDPROC(serpent_ctr_16way)
SYM_FUNC_END(serpent_ctr_16way)
ENTRY(serpent_xts_enc_16way)
SYM_FUNC_START(serpent_xts_enc_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -784,9 +784,9 @@ ENTRY(serpent_xts_enc_16way)
FRAME_END
ret;
ENDPROC(serpent_xts_enc_16way)
SYM_FUNC_END(serpent_xts_enc_16way)
ENTRY(serpent_xts_dec_16way)
SYM_FUNC_START(serpent_xts_dec_16way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst (16 blocks)
@ -810,4 +810,4 @@ ENTRY(serpent_xts_dec_16way)
FRAME_END
ret;
ENDPROC(serpent_xts_dec_16way)
SYM_FUNC_END(serpent_xts_dec_16way)

8
arch/x86/crypto/serpent-sse2-i586-asm_32.S
View File

@ -497,7 +497,7 @@
pxor t0, x3; \
movdqu x3, (3*4*4)(out);
ENTRY(__serpent_enc_blk_4way)
SYM_FUNC_START(__serpent_enc_blk_4way)
/* input:
* arg_ctx(%esp): ctx, CTX
* arg_dst(%esp): dst
@ -559,9 +559,9 @@ ENTRY(__serpent_enc_blk_4way)
xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
ret;
ENDPROC(__serpent_enc_blk_4way)
SYM_FUNC_END(__serpent_enc_blk_4way)
ENTRY(serpent_dec_blk_4way)
SYM_FUNC_START(serpent_dec_blk_4way)
/* input:
* arg_ctx(%esp): ctx, CTX
* arg_dst(%esp): dst
@ -613,4 +613,4 @@ ENTRY(serpent_dec_blk_4way)
write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
ret;
ENDPROC(serpent_dec_blk_4way)
SYM_FUNC_END(serpent_dec_blk_4way)

8
arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
View File

@ -619,7 +619,7 @@
pxor t0, x3; \
movdqu x3, (3*4*4)(out);
ENTRY(__serpent_enc_blk_8way)
SYM_FUNC_START(__serpent_enc_blk_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -682,9 +682,9 @@ ENTRY(__serpent_enc_blk_8way)
xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_enc_blk_8way)
SYM_FUNC_END(__serpent_enc_blk_8way)
ENTRY(serpent_dec_blk_8way)
SYM_FUNC_START(serpent_dec_blk_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -736,4 +736,4 @@ ENTRY(serpent_dec_blk_8way)
write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
ret;
ENDPROC(serpent_dec_blk_8way)
SYM_FUNC_END(serpent_dec_blk_8way)

4
arch/x86/crypto/sha1_avx2_x86_64_asm.S
View File

@ -634,7 +634,7 @@ _loop3:
* param: function's name
*/
.macro SHA1_VECTOR_ASM name
ENTRY(\name)
SYM_FUNC_START(\name)
push %rbx
push %r12
@ -676,7 +676,7 @@ _loop3:
ret
ENDPROC(\name)
SYM_FUNC_END(\name)
.endm
.section .rodata

4
arch/x86/crypto/sha1_ni_asm.S
View File

@ -95,7 +95,7 @@
*/
.text
.align 32
ENTRY(sha1_ni_transform)
SYM_FUNC_START(sha1_ni_transform)
mov %rsp, RSPSAVE
sub $FRAME_SIZE, %rsp
and $~0xF, %rsp
@ -291,7 +291,7 @@ ENTRY(sha1_ni_transform)
mov RSPSAVE, %rsp
ret
ENDPROC(sha1_ni_transform)
SYM_FUNC_END(sha1_ni_transform)
.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
.align 16

4
arch/x86/crypto/sha1_ssse3_asm.S
View File

@ -67,7 +67,7 @@
* param: function's name
*/
.macro SHA1_VECTOR_ASM name
ENTRY(\name)
SYM_FUNC_START(\name)
push %rbx
push %r12
@ -101,7 +101,7 @@
pop %rbx
ret
ENDPROC(\name)
SYM_FUNC_END(\name)
.endm
/*

4
arch/x86/crypto/sha256-avx-asm.S
View File

@ -347,7 +347,7 @@ a = TMP_
## arg 3 : Num blocks
########################################################################
.text
ENTRY(sha256_transform_avx)
SYM_FUNC_START(sha256_transform_avx)
.align 32
pushq %rbx
pushq %r12
@ -460,7 +460,7 @@ done_hash:
popq %r12
popq %rbx
ret
ENDPROC(sha256_transform_avx)
SYM_FUNC_END(sha256_transform_avx)
.section .rodata.cst256.K256, "aM", @progbits, 256
.align 64

4
arch/x86/crypto/sha256-avx2-asm.S
View File

@ -526,7 +526,7 @@ STACK_SIZE = _RSP + _RSP_SIZE
## arg 3 : Num blocks
########################################################################
.text
ENTRY(sha256_transform_rorx)
SYM_FUNC_START(sha256_transform_rorx)
.align 32
pushq %rbx
pushq %r12
@ -713,7 +713,7 @@ done_hash:
popq %r12
popq %rbx
ret
ENDPROC(sha256_transform_rorx)
SYM_FUNC_END(sha256_transform_rorx)
.section .rodata.cst512.K256, "aM", @progbits, 512
.align 64

4
arch/x86/crypto/sha256-ssse3-asm.S
View File

@ -353,7 +353,7 @@ a = TMP_
## arg 3 : Num blocks
########################################################################
.text
ENTRY(sha256_transform_ssse3)
SYM_FUNC_START(sha256_transform_ssse3)
.align 32
pushq %rbx
pushq %r12
@ -471,7 +471,7 @@ done_hash:
popq %rbx
ret
ENDPROC(sha256_transform_ssse3)
SYM_FUNC_END(sha256_transform_ssse3)
.section .rodata.cst256.K256, "aM", @progbits, 256
.align 64

4
arch/x86/crypto/sha256_ni_asm.S
View File

@ -97,7 +97,7 @@
.text
.align 32
ENTRY(sha256_ni_transform)
SYM_FUNC_START(sha256_ni_transform)
shl $6, NUM_BLKS /* convert to bytes */
jz .Ldone_hash
@ -327,7 +327,7 @@ ENTRY(sha256_ni_transform)
.Ldone_hash:
ret
ENDPROC(sha256_ni_transform)
SYM_FUNC_END(sha256_ni_transform)
.section .rodata.cst256.K256, "aM", @progbits, 256
.align 64

4
arch/x86/crypto/sha512-avx-asm.S
View File

@ -277,7 +277,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
# message blocks.
# L is the message length in SHA512 blocks
########################################################################
ENTRY(sha512_transform_avx)
SYM_FUNC_START(sha512_transform_avx)
cmp $0, msglen
je nowork
@ -365,7 +365,7 @@ updateblock:
nowork:
ret
ENDPROC(sha512_transform_avx)
SYM_FUNC_END(sha512_transform_avx)
########################################################################
### Binary Data

4
arch/x86/crypto/sha512-avx2-asm.S
View File

@ -569,7 +569,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
# message blocks.
# L is the message length in SHA512 blocks
########################################################################
ENTRY(sha512_transform_rorx)
SYM_FUNC_START(sha512_transform_rorx)
# Allocate Stack Space
mov %rsp, %rax
sub $frame_size, %rsp
@ -682,7 +682,7 @@ done_hash:
# Restore Stack Pointer
mov frame_RSPSAVE(%rsp), %rsp
ret
ENDPROC(sha512_transform_rorx)
SYM_FUNC_END(sha512_transform_rorx)
########################################################################
### Binary Data

4
arch/x86/crypto/sha512-ssse3-asm.S
View File

@ -275,7 +275,7 @@ frame_size = frame_GPRSAVE + GPRSAVE_SIZE
# message blocks.
# L is the message length in SHA512 blocks.
########################################################################
ENTRY(sha512_transform_ssse3)
SYM_FUNC_START(sha512_transform_ssse3)
cmp $0, msglen
je nowork
@ -364,7 +364,7 @@ updateblock:
nowork:
ret
ENDPROC(sha512_transform_ssse3)
SYM_FUNC_END(sha512_transform_ssse3)
########################################################################
### Binary Data

32
arch/x86/crypto/twofish-avx-x86_64-asm_64.S
View File

@ -234,7 +234,7 @@
vpxor x3, wkey, x3;
.align 8
__twofish_enc_blk8:
SYM_FUNC_START_LOCAL(__twofish_enc_blk8)
/* input:
* %rdi: ctx, CTX
* RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
@ -273,10 +273,10 @@ __twofish_enc_blk8:
outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
ret;
ENDPROC(__twofish_enc_blk8)
SYM_FUNC_END(__twofish_enc_blk8)
.align 8
__twofish_dec_blk8:
SYM_FUNC_START_LOCAL(__twofish_dec_blk8)
/* input:
* %rdi: ctx, CTX
* RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks
@ -313,9 +313,9 @@ __twofish_dec_blk8:
outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
ret;
ENDPROC(__twofish_dec_blk8)
SYM_FUNC_END(__twofish_dec_blk8)
ENTRY(twofish_ecb_enc_8way)
SYM_FUNC_START(twofish_ecb_enc_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -333,9 +333,9 @@ ENTRY(twofish_ecb_enc_8way)
FRAME_END
ret;
ENDPROC(twofish_ecb_enc_8way)
SYM_FUNC_END(twofish_ecb_enc_8way)
ENTRY(twofish_ecb_dec_8way)
SYM_FUNC_START(twofish_ecb_dec_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -353,9 +353,9 @@ ENTRY(twofish_ecb_dec_8way)
FRAME_END
ret;
ENDPROC(twofish_ecb_dec_8way)
SYM_FUNC_END(twofish_ecb_dec_8way)
ENTRY(twofish_cbc_dec_8way)
SYM_FUNC_START(twofish_cbc_dec_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -378,9 +378,9 @@ ENTRY(twofish_cbc_dec_8way)
FRAME_END
ret;
ENDPROC(twofish_cbc_dec_8way)
SYM_FUNC_END(twofish_cbc_dec_8way)
ENTRY(twofish_ctr_8way)
SYM_FUNC_START(twofish_ctr_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -405,9 +405,9 @@ ENTRY(twofish_ctr_8way)
FRAME_END
ret;
ENDPROC(twofish_ctr_8way)
SYM_FUNC_END(twofish_ctr_8way)
ENTRY(twofish_xts_enc_8way)
SYM_FUNC_START(twofish_xts_enc_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -429,9 +429,9 @@ ENTRY(twofish_xts_enc_8way)
FRAME_END
ret;
ENDPROC(twofish_xts_enc_8way)
SYM_FUNC_END(twofish_xts_enc_8way)
ENTRY(twofish_xts_dec_8way)
SYM_FUNC_START(twofish_xts_dec_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -453,4 +453,4 @@ ENTRY(twofish_xts_dec_8way)
FRAME_END
ret;
ENDPROC(twofish_xts_dec_8way)
SYM_FUNC_END(twofish_xts_dec_8way)

8
arch/x86/crypto/twofish-i586-asm_32.S
View File

@ -207,7 +207,7 @@
xor %esi, d ## D;\
ror $1, d ## D;
ENTRY(twofish_enc_blk)
SYM_FUNC_START(twofish_enc_blk)
push %ebp /* save registers according to calling convention*/
push %ebx
push %esi
@ -261,9 +261,9 @@ ENTRY(twofish_enc_blk)
pop %ebp
mov $1, %eax
ret
ENDPROC(twofish_enc_blk)
SYM_FUNC_END(twofish_enc_blk)
ENTRY(twofish_dec_blk)
SYM_FUNC_START(twofish_dec_blk)
push %ebp /* save registers according to calling convention*/
push %ebx
push %esi
@ -318,4 +318,4 @@ ENTRY(twofish_dec_blk)
pop %ebp
mov $1, %eax
ret
ENDPROC(twofish_dec_blk)
SYM_FUNC_END(twofish_dec_blk)

8
arch/x86/crypto/twofish-x86_64-asm_64-3way.S
View File

@ -220,7 +220,7 @@
rorq $32, RAB2; \
outunpack3(mov, RIO, 2, RAB, 2);
ENTRY(__twofish_enc_blk_3way)
SYM_FUNC_START(__twofish_enc_blk_3way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -267,9 +267,9 @@ ENTRY(__twofish_enc_blk_3way)
popq %r12;
popq %r13;
ret;
ENDPROC(__twofish_enc_blk_3way)
SYM_FUNC_END(__twofish_enc_blk_3way)
ENTRY(twofish_dec_blk_3way)
SYM_FUNC_START(twofish_dec_blk_3way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
@ -302,4 +302,4 @@ ENTRY(twofish_dec_blk_3way)
popq %r12;
popq %r13;
ret;
ENDPROC(twofish_dec_blk_3way)
SYM_FUNC_END(twofish_dec_blk_3way)

8
arch/x86/crypto/twofish-x86_64-asm_64.S
View File

@ -202,7 +202,7 @@
xor %r8d, d ## D;\
ror $1, d ## D;
ENTRY(twofish_enc_blk)
SYM_FUNC_START(twofish_enc_blk)
pushq R1
/* %rdi contains the ctx address */
@ -253,9 +253,9 @@ ENTRY(twofish_enc_blk)
popq R1
movl $1,%eax
ret
ENDPROC(twofish_enc_blk)
SYM_FUNC_END(twofish_enc_blk)
ENTRY(twofish_dec_blk)
SYM_FUNC_START(twofish_dec_blk)
pushq R1
/* %rdi contains the ctx address */
@ -305,4 +305,4 @@ ENTRY(twofish_dec_blk)
popq R1
movl $1,%eax
ret
ENDPROC(twofish_dec_blk)
SYM_FUNC_END(twofish_dec_blk)

160
arch/x86/entry/entry_32.S
View File

@ -730,7 +730,7 @@
* %eax: prev task
* %edx: next task
*/
ENTRY(__switch_to_asm)
SYM_CODE_START(__switch_to_asm)
/*
* Save callee-saved registers
* This must match the order in struct inactive_task_frame
@ -769,7 +769,7 @@ ENTRY(__switch_to_asm)
popl %ebp
jmp __switch_to
END(__switch_to_asm)
SYM_CODE_END(__switch_to_asm)
/*
* The unwinder expects the last frame on the stack to always be at the same
@ -778,7 +778,7 @@ END(__switch_to_asm)
* asmlinkage function so its argument has to be pushed on the stack. This
* wrapper creates a proper "end of stack" frame header before the call.
*/
ENTRY(schedule_tail_wrapper)
SYM_FUNC_START(schedule_tail_wrapper)
FRAME_BEGIN
pushl %eax
@ -787,7 +787,7 @@ ENTRY(schedule_tail_wrapper)
FRAME_END
ret
ENDPROC(schedule_tail_wrapper)
SYM_FUNC_END(schedule_tail_wrapper)
/*
* A newly forked process directly context switches into this address.
*
@ -795,7 +795,7 @@ ENDPROC(schedule_tail_wrapper)
* ebx: kernel thread func (NULL for user thread)
* edi: kernel thread arg
*/
ENTRY(ret_from_fork)
SYM_CODE_START(ret_from_fork)
call schedule_tail_wrapper
testl %ebx, %ebx
@ -818,7 +818,7 @@ ENTRY(ret_from_fork)
*/
movl $0, PT_EAX(%esp)
jmp 2b
END(ret_from_fork)
SYM_CODE_END(ret_from_fork)
/*
* Return to user mode is not as complex as all this looks,
@ -828,8 +828,7 @@ END(ret_from_fork)
*/
# userspace resumption stub bypassing syscall exit tracing
ALIGN
ret_from_exception:
SYM_CODE_START_LOCAL(ret_from_exception)
preempt_stop(CLBR_ANY)
ret_from_intr:
#ifdef CONFIG_VM86
@ -846,15 +845,14 @@ ret_from_intr:
cmpl $USER_RPL, %eax
jb restore_all_kernel # not returning to v8086 or userspace
ENTRY(resume_userspace)
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
movl %esp, %eax
call prepare_exit_to_usermode
jmp restore_all
END(ret_from_exception)
SYM_CODE_END(ret_from_exception)
GLOBAL(__begin_SYSENTER_singlestep_region)
SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
/*
* All code from here through __end_SYSENTER_singlestep_region is subject
* to being single-stepped if a user program sets TF and executes SYSENTER.
@ -869,9 +867,10 @@ GLOBAL(__begin_SYSENTER_singlestep_region)
* Xen doesn't set %esp to be precisely what the normal SYSENTER
* entry point expects, so fix it up before using the normal path.
*/
ENTRY(xen_sysenter_target)
SYM_CODE_START(xen_sysenter_target)
addl $5*4, %esp /* remove xen-provided frame */
jmp .Lsysenter_past_esp
SYM_CODE_END(xen_sysenter_target)
#endif
/*
@ -906,7 +905,7 @@ ENTRY(xen_sysenter_target)
* ebp user stack
* 0(%ebp) arg6
*/
ENTRY(entry_SYSENTER_32)
SYM_FUNC_START(entry_SYSENTER_32)
/*
* On entry-stack with all userspace-regs live - save and
* restore eflags and %eax to use it as scratch-reg for the cr3
@ -1033,8 +1032,8 @@ ENTRY(entry_SYSENTER_32)
pushl $X86_EFLAGS_FIXED
popfl
jmp .Lsysenter_flags_fixed
GLOBAL(__end_SYSENTER_singlestep_region)
ENDPROC(entry_SYSENTER_32)
SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
SYM_FUNC_END(entry_SYSENTER_32)
/*
* 32-bit legacy system call entry.
@ -1064,7 +1063,7 @@ ENDPROC(entry_SYSENTER_32)
* edi arg5
* ebp arg6
*/
ENTRY(entry_INT80_32)
SYM_FUNC_START(entry_INT80_32)
ASM_CLAC
pushl %eax /* pt_regs->orig_ax */
@ -1120,7 +1119,7 @@ restore_all_kernel:
jmp .Lirq_return
.section .fixup, "ax"
ENTRY(iret_exc )
SYM_CODE_START(iret_exc)
pushl $0 # no error code
pushl $do_iret_error
@ -1137,9 +1136,10 @@ ENTRY(iret_exc )
#endif
jmp common_exception
SYM_CODE_END(iret_exc)
.previous
_ASM_EXTABLE(.Lirq_return, iret_exc)
ENDPROC(entry_INT80_32)
SYM_FUNC_END(entry_INT80_32)
.macro FIXUP_ESPFIX_STACK
/*
@ -1193,7 +1193,7 @@ ENDPROC(entry_INT80_32)
* We pack 1 stub into every 8-byte block.
*/
.align 8
ENTRY(irq_entries_start)
SYM_CODE_START(irq_entries_start)
vector=FIRST_EXTERNAL_VECTOR
.rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
pushl $(~vector+0x80) /* Note: always in signed byte range */
@ -1201,11 +1201,11 @@ ENTRY(irq_entries_start)
jmp common_interrupt
.align 8
.endr
END(irq_entries_start)
SYM_CODE_END(irq_entries_start)
#ifdef CONFIG_X86_LOCAL_APIC
.align 8
ENTRY(spurious_entries_start)
SYM_CODE_START(spurious_entries_start)
vector=FIRST_SYSTEM_VECTOR
.rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
pushl $(~vector+0x80) /* Note: always in signed byte range */
@ -1213,9 +1213,9 @@ ENTRY(spurious_entries_start)
jmp common_spurious
.align 8
.endr
END(spurious_entries_start)
SYM_CODE_END(spurious_entries_start)
common_spurious:
SYM_CODE_START_LOCAL(common_spurious)
ASM_CLAC
addl $-0x80, (%esp) /* Adjust vector into the [-256, -1] range */
SAVE_ALL switch_stacks=1
@ -1224,7 +1224,7 @@ common_spurious:
movl %esp, %eax
call smp_spurious_interrupt
jmp ret_from_intr
ENDPROC(common_spurious)
SYM_CODE_END(common_spurious)
#endif
/*
@ -1232,7 +1232,7 @@ ENDPROC(common_spurious)
* so IRQ-flags tracing has to follow that:
*/
.p2align CONFIG_X86_L1_CACHE_SHIFT
common_interrupt:
SYM_CODE_START_LOCAL(common_interrupt)
ASM_CLAC
addl $-0x80, (%esp) /* Adjust vector into the [-256, -1] range */
@ -1242,10 +1242,10 @@ common_interrupt:
movl %esp, %eax
call do_IRQ
jmp ret_from_intr
ENDPROC(common_interrupt)
SYM_CODE_END(common_interrupt)
#define BUILD_INTERRUPT3(name, nr, fn) \
ENTRY(name) \
SYM_FUNC_START(name) \
ASM_CLAC; \
pushl $~(nr); \
SAVE_ALL switch_stacks=1; \
@ -1254,7 +1254,7 @@ ENTRY(name) \
movl %esp, %eax; \
call fn; \
jmp ret_from_intr; \
ENDPROC(name)
SYM_FUNC_END(name)
#define BUILD_INTERRUPT(name, nr) \
BUILD_INTERRUPT3(name, nr, smp_##name); \
@ -1262,14 +1262,14 @@ ENDPROC(name)
/* The include is where all of the SMP etc. interrupts come from */
#include <asm/entry_arch.h>
ENTRY(coprocessor_error)
SYM_CODE_START(coprocessor_error)
ASM_CLAC
pushl $0
pushl $do_coprocessor_error
jmp common_exception
END(coprocessor_error)
SYM_CODE_END(coprocessor_error)
ENTRY(simd_coprocessor_error)
SYM_CODE_START(simd_coprocessor_error)
ASM_CLAC
pushl $0
#ifdef CONFIG_X86_INVD_BUG
@ -1281,99 +1281,99 @@ ENTRY(simd_coprocessor_error)
pushl $do_simd_coprocessor_error
#endif
jmp common_exception
END(simd_coprocessor_error)
SYM_CODE_END(simd_coprocessor_error)
ENTRY(device_not_available)
SYM_CODE_START(device_not_available)
ASM_CLAC
pushl $-1 # mark this as an int
pushl $do_device_not_available
jmp common_exception
END(device_not_available)
SYM_CODE_END(device_not_available)
#ifdef CONFIG_PARAVIRT
ENTRY(native_iret)
SYM_CODE_START(native_iret)
iret
_ASM_EXTABLE(native_iret, iret_exc)
END(native_iret)
SYM_CODE_END(native_iret)
#endif
ENTRY(overflow)
SYM_CODE_START(overflow)
ASM_CLAC
pushl $0
pushl $do_overflow
jmp common_exception
END(overflow)
SYM_CODE_END(overflow)
ENTRY(bounds)
SYM_CODE_START(bounds)
ASM_CLAC
pushl $0
pushl $do_bounds
jmp common_exception
END(bounds)
SYM_CODE_END(bounds)
ENTRY(invalid_op)
SYM_CODE_START(invalid_op)
ASM_CLAC
pushl $0
pushl $do_invalid_op
jmp common_exception
END(invalid_op)
SYM_CODE_END(invalid_op)
ENTRY(coprocessor_segment_overrun)
SYM_CODE_START(coprocessor_segment_overrun)
ASM_CLAC
pushl $0
pushl $do_coprocessor_segment_overrun
jmp common_exception
END(coprocessor_segment_overrun)
SYM_CODE_END(coprocessor_segment_overrun)
ENTRY(invalid_TSS)
SYM_CODE_START(invalid_TSS)
ASM_CLAC
pushl $do_invalid_TSS
jmp common_exception
END(invalid_TSS)
SYM_CODE_END(invalid_TSS)
ENTRY(segment_not_present)
SYM_CODE_START(segment_not_present)
ASM_CLAC
pushl $do_segment_not_present
jmp common_exception
END(segment_not_present)
SYM_CODE_END(segment_not_present)
ENTRY(stack_segment)
SYM_CODE_START(stack_segment)
ASM_CLAC
pushl $do_stack_segment
jmp common_exception
END(stack_segment)
SYM_CODE_END(stack_segment)
ENTRY(alignment_check)
SYM_CODE_START(alignment_check)
ASM_CLAC
pushl $do_alignment_check
jmp common_exception
END(alignment_check)
SYM_CODE_END(alignment_check)
ENTRY(divide_error)
SYM_CODE_START(divide_error)
ASM_CLAC
pushl $0 # no error code
pushl $do_divide_error
jmp common_exception
END(divide_error)
SYM_CODE_END(divide_error)
#ifdef CONFIG_X86_MCE
ENTRY(machine_check)
SYM_CODE_START(machine_check)
ASM_CLAC
pushl $0
pushl machine_check_vector
jmp common_exception
END(machine_check)
SYM_CODE_END(machine_check)
#endif
ENTRY(spurious_interrupt_bug)
SYM_CODE_START(spurious_interrupt_bug)
ASM_CLAC
pushl $0
pushl $do_spurious_interrupt_bug
jmp common_exception
END(spurious_interrupt_bug)
SYM_CODE_END(spurious_interrupt_bug)
#ifdef CONFIG_XEN_PV
ENTRY(xen_hypervisor_callback)
SYM_FUNC_START(xen_hypervisor_callback)
/*
* Check to see if we got the event in the critical
* region in xen_iret_direct, after we've reenabled
@ -1397,7 +1397,7 @@ ENTRY(xen_hypervisor_callback)
call xen_maybe_preempt_hcall
#endif
jmp ret_from_intr
ENDPROC(xen_hypervisor_callback)
SYM_FUNC_END(xen_hypervisor_callback)
/*
* Hypervisor uses this for application faults while it executes.
@ -1411,7 +1411,7 @@ ENDPROC(xen_hypervisor_callback)
* to pop the stack frame we end up in an infinite loop of failsafe callbacks.
* We distinguish between categories by maintaining a status value in EAX.
*/
ENTRY(xen_failsafe_callback)
SYM_FUNC_START(xen_failsafe_callback)
pushl %eax
movl $1, %eax
1: mov 4(%esp), %ds
@ -1448,7 +1448,7 @@ ENTRY(xen_failsafe_callback)
_ASM_EXTABLE(2b, 7b)
_ASM_EXTABLE(3b, 8b)
_ASM_EXTABLE(4b, 9b)
ENDPROC(xen_failsafe_callback)
SYM_FUNC_END(xen_failsafe_callback)
#endif /* CONFIG_XEN_PV */
#ifdef CONFIG_XEN_PVHVM
@ -1470,13 +1470,13 @@ BUILD_INTERRUPT3(hv_stimer0_callback_vector, HYPERV_STIMER0_VECTOR,
#endif /* CONFIG_HYPERV */
ENTRY(page_fault)
SYM_CODE_START(page_fault)
ASM_CLAC
pushl $do_page_fault
jmp common_exception_read_cr2
END(page_fault)
SYM_CODE_END(page_fault)
common_exception_read_cr2:
SYM_CODE_START_LOCAL_NOALIGN(common_exception_read_cr2)
/* the function address is in %gs's slot on the stack */
SAVE_ALL switch_stacks=1 skip_gs=1 unwind_espfix=1
@ -1498,9 +1498,9 @@ common_exception_read_cr2:
movl %esp, %eax # pt_regs pointer
CALL_NOSPEC %edi
jmp ret_from_exception
END(common_exception_read_cr2)
SYM_CODE_END(common_exception_read_cr2)
common_exception:
SYM_CODE_START_LOCAL_NOALIGN(common_exception)
/* the function address is in %gs's slot on the stack */
SAVE_ALL switch_stacks=1 skip_gs=1 unwind_espfix=1
ENCODE_FRAME_POINTER
@ -1519,9 +1519,9 @@ common_exception:
movl %esp, %eax # pt_regs pointer
CALL_NOSPEC %edi
jmp ret_from_exception
END(common_exception)
SYM_CODE_END(common_exception)
ENTRY(debug)
SYM_CODE_START(debug)
/*
* Entry from sysenter is now handled in common_exception
*/
@ -1529,7 +1529,7 @@ ENTRY(debug)
pushl $-1 # mark this as an int
pushl $do_debug
jmp common_exception
END(debug)
SYM_CODE_END(debug)
/*
* NMI is doubly nasty. It can happen on the first instruction of
@ -1538,7 +1538,7 @@ END(debug)
* switched stacks. We handle both conditions by simply checking whether we
* interrupted kernel code running on the SYSENTER stack.
*/
ENTRY(nmi)
SYM_CODE_START(nmi)
ASM_CLAC
#ifdef CONFIG_X86_ESPFIX32
@ -1631,9 +1631,9 @@ ENTRY(nmi)
lss (1+5+6)*4(%esp), %esp # back to espfix stack
jmp .Lirq_return
#endif
END(nmi)
SYM_CODE_END(nmi)
ENTRY(int3)
SYM_CODE_START(int3)
ASM_CLAC
pushl $-1 # mark this as an int
@ -1644,22 +1644,22 @@ ENTRY(int3)
movl %esp, %eax # pt_regs pointer
call do_int3
jmp ret_from_exception
END(int3)
SYM_CODE_END(int3)
ENTRY(general_protection)
SYM_CODE_START(general_protection)
pushl $do_general_protection
jmp common_exception
END(general_protection)
SYM_CODE_END(general_protection)
#ifdef CONFIG_KVM_GUEST
ENTRY(async_page_fault)
SYM_CODE_START(async_page_fault)
ASM_CLAC
pushl $do_async_page_fault
jmp common_exception_read_cr2
END(async_page_fault)
SYM_CODE_END(async_page_fault)
#endif
ENTRY(rewind_stack_do_exit)
SYM_CODE_START(rewind_stack_do_exit)
/* Prevent any naive code from trying to unwind to our caller. */
xorl %ebp, %ebp
@ -1668,4 +1668,4 @@ ENTRY(rewind_stack_do_exit)
call do_exit
1: jmp 1b
END(rewind_stack_do_exit)
SYM_CODE_END(rewind_stack_do_exit)

112
arch/x86/entry/entry_64.S
View File

@ -15,7 +15,7 @@
* at the top of the kernel process stack.
*
* Some macro usage:
* - ENTRY/END: Define functions in the symbol table.
* - SYM_FUNC_START/END:Define functions in the symbol table.
* - TRACE_IRQ_*: Trace hardirq state for lock debugging.
* - idtentry: Define exception entry points.
*/
@ -46,11 +46,11 @@
.section .entry.text, "ax"
#ifdef CONFIG_PARAVIRT
ENTRY(native_usergs_sysret64)
SYM_CODE_START(native_usergs_sysret64)
UNWIND_HINT_EMPTY
swapgs
sysretq
END(native_usergs_sysret64)
SYM_CODE_END(native_usergs_sysret64)
#endif /* CONFIG_PARAVIRT */
.macro TRACE_IRQS_FLAGS flags:req
@ -142,7 +142,7 @@ END(native_usergs_sysret64)
* with them due to bugs in both AMD and Intel CPUs.
*/
ENTRY(entry_SYSCALL_64)
SYM_CODE_START(entry_SYSCALL_64)
UNWIND_HINT_EMPTY
/*
* Interrupts are off on entry.
@ -162,7 +162,7 @@ ENTRY(entry_SYSCALL_64)
pushq %r11 /* pt_regs->flags */
pushq $__USER_CS /* pt_regs->cs */
pushq %rcx /* pt_regs->ip */
GLOBAL(entry_SYSCALL_64_after_hwframe)
SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL)
pushq %rax /* pt_regs->orig_ax */
PUSH_AND_CLEAR_REGS rax=$-ENOSYS
@ -273,13 +273,13 @@ syscall_return_via_sysret:
popq %rdi
popq %rsp
USERGS_SYSRET64
END(entry_SYSCALL_64)
SYM_CODE_END(entry_SYSCALL_64)
/*
* %rdi: prev task
* %rsi: next task
*/
ENTRY(__switch_to_asm)
SYM_CODE_START(__switch_to_asm)
UNWIND_HINT_FUNC
/*
* Save callee-saved registers
@ -321,7 +321,7 @@ ENTRY(__switch_to_asm)
popq %rbp
jmp __switch_to
END(__switch_to_asm)
SYM_CODE_END(__switch_to_asm)
/*
* A newly forked process directly context switches into this address.
@ -330,7 +330,7 @@ END(__switch_to_asm)
* rbx: kernel thread func (NULL for user thread)
* r12: kernel thread arg
*/
ENTRY(ret_from_fork)
SYM_CODE_START(ret_from_fork)
UNWIND_HINT_EMPTY
movq %rax, %rdi
call schedule_tail /* rdi: 'prev' task parameter */
@ -357,14 +357,14 @@ ENTRY(ret_from_fork)
*/
movq $0, RAX(%rsp)
jmp 2b
END(ret_from_fork)
SYM_CODE_END(ret_from_fork)
/*
* Build the entry stubs with some assembler magic.
* We pack 1 stub into every 8-byte block.
*/
.align 8
ENTRY(irq_entries_start)
SYM_CODE_START(irq_entries_start)
vector=FIRST_EXTERNAL_VECTOR
.rept (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
UNWIND_HINT_IRET_REGS
@ -373,10 +373,10 @@ ENTRY(irq_entries_start)
.align 8
vector=vector+1
.endr
END(irq_entries_start)
SYM_CODE_END(irq_entries_start)
.align 8
ENTRY(spurious_entries_start)
SYM_CODE_START(spurious_entries_start)
vector=FIRST_SYSTEM_VECTOR
.rept (NR_VECTORS - FIRST_SYSTEM_VECTOR)
UNWIND_HINT_IRET_REGS
@ -385,7 +385,7 @@ ENTRY(spurious_entries_start)
.align 8
vector=vector+1
.endr
END(spurious_entries_start)
SYM_CODE_END(spurious_entries_start)
.macro DEBUG_ENTRY_ASSERT_IRQS_OFF
#ifdef CONFIG_DEBUG_ENTRY
@ -511,7 +511,7 @@ END(spurious_entries_start)
* | return address |
* +----------------------------------------------------+
*/
ENTRY(interrupt_entry)
SYM_CODE_START(interrupt_entry)
UNWIND_HINT_FUNC
ASM_CLAC
cld
@ -579,7 +579,7 @@ ENTRY(interrupt_entry)
TRACE_IRQS_OFF
ret
END(interrupt_entry)
SYM_CODE_END(interrupt_entry)
_ASM_NOKPROBE(interrupt_entry)
@ -589,18 +589,18 @@ _ASM_NOKPROBE(interrupt_entry)
* The interrupt stubs push (~vector+0x80) onto the stack and
* then jump to common_spurious/interrupt.
*/
common_spurious:
SYM_CODE_START_LOCAL(common_spurious)
addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */
call interrupt_entry
UNWIND_HINT_REGS indirect=1
call smp_spurious_interrupt /* rdi points to pt_regs */
jmp ret_from_intr
END(common_spurious)
SYM_CODE_END(common_spurious)
_ASM_NOKPROBE(common_spurious)
/* common_interrupt is a hotpath. Align it */
.p2align CONFIG_X86_L1_CACHE_SHIFT
common_interrupt:
SYM_CODE_START_LOCAL(common_interrupt)
addq $-0x80, (%rsp) /* Adjust vector to [-256, -1] range */
call interrupt_entry
UNWIND_HINT_REGS indirect=1
@ -616,12 +616,12 @@ ret_from_intr:
jz retint_kernel
/* Interrupt came from user space */
GLOBAL(retint_user)
.Lretint_user:
mov %rsp,%rdi
call prepare_exit_to_usermode
TRACE_IRQS_IRETQ
GLOBAL(swapgs_restore_regs_and_return_to_usermode)
SYM_INNER_LABEL(swapgs_restore_regs_and_return_to_usermode, SYM_L_GLOBAL)
#ifdef CONFIG_DEBUG_ENTRY
/* Assert that pt_regs indicates user mode. */
testb $3, CS(%rsp)
@ -679,7 +679,7 @@ retint_kernel:
*/
TRACE_IRQS_IRETQ
GLOBAL(restore_regs_and_return_to_kernel)
SYM_INNER_LABEL(restore_regs_and_return_to_kernel, SYM_L_GLOBAL)
#ifdef CONFIG_DEBUG_ENTRY
/* Assert that pt_regs indicates kernel mode. */
testb $3, CS(%rsp)
@ -695,7 +695,7 @@ GLOBAL(restore_regs_and_return_to_kernel)
*/
INTERRUPT_RETURN
ENTRY(native_iret)
SYM_INNER_LABEL_ALIGN(native_iret, SYM_L_GLOBAL)
UNWIND_HINT_IRET_REGS
/*
* Are we returning to a stack segment from the LDT? Note: in
@ -706,8 +706,7 @@ ENTRY(native_iret)
jnz native_irq_return_ldt
#endif
.global native_irq_return_iret
native_irq_return_iret:
SYM_INNER_LABEL(native_irq_return_iret, SYM_L_GLOBAL)
/*
* This may fault. Non-paranoid faults on return to userspace are
* handled by fixup_bad_iret. These include #SS, #GP, and #NP.
@ -789,14 +788,14 @@ native_irq_return_ldt:
*/
jmp native_irq_return_iret
#endif
END(common_interrupt)
SYM_CODE_END(common_interrupt)
_ASM_NOKPROBE(common_interrupt)
/*
* APIC interrupts.
*/
.macro apicinterrupt3 num sym do_sym
ENTRY(\sym)
SYM_CODE_START(\sym)
UNWIND_HINT_IRET_REGS
pushq $~(\num)
.Lcommon_\sym:
@ -804,7 +803,7 @@ ENTRY(\sym)
UNWIND_HINT_REGS indirect=1
call \do_sym /* rdi points to pt_regs */
jmp ret_from_intr
END(\sym)
SYM_CODE_END(\sym)
_ASM_NOKPROBE(\sym)
.endm
@ -969,7 +968,7 @@ apicinterrupt IRQ_WORK_VECTOR irq_work_interrupt smp_irq_work_interrupt
* #DF: if the thread stack is somehow unusable, we'll still get a useful OOPS.
*/
.macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1 ist_offset=0 create_gap=0 read_cr2=0
ENTRY(\sym)
SYM_CODE_START(\sym)
UNWIND_HINT_IRET_REGS offset=\has_error_code*8
/* Sanity check */
@ -1019,7 +1018,7 @@ ENTRY(\sym)
.endif
_ASM_NOKPROBE(\sym)
END(\sym)
SYM_CODE_END(\sym)
.endm
idtentry divide_error do_divide_error has_error_code=0
@ -1041,7 +1040,7 @@ idtentry simd_coprocessor_error do_simd_coprocessor_error has_error_code=0
* Reload gs selector with exception handling
* edi: new selector
*/
ENTRY(native_load_gs_index)
SYM_FUNC_START(native_load_gs_index)
FRAME_BEGIN
pushfq
DISABLE_INTERRUPTS(CLBR_ANY & ~CLBR_RDI)
@ -1055,13 +1054,13 @@ ENTRY(native_load_gs_index)
popfq
FRAME_END
ret
ENDPROC(native_load_gs_index)
SYM_FUNC_END(native_load_gs_index)
EXPORT_SYMBOL(native_load_gs_index)
_ASM_EXTABLE(.Lgs_change, .Lbad_gs)
.section .fixup, "ax"
/* running with kernelgs */
.Lbad_gs:
SYM_CODE_START_LOCAL_NOALIGN(.Lbad_gs)
SWAPGS /* switch back to user gs */
.macro ZAP_GS
/* This can't be a string because the preprocessor needs to see it. */
@ -1072,10 +1071,11 @@ EXPORT_SYMBOL(native_load_gs_index)
xorl %eax, %eax
movl %eax, %gs
jmp 2b
SYM_CODE_END(.Lbad_gs)
.previous
/* Call softirq on interrupt stack. Interrupts are off. */
ENTRY(do_softirq_own_stack)
SYM_FUNC_START(do_softirq_own_stack)
pushq %rbp
mov %rsp, %rbp
ENTER_IRQ_STACK regs=0 old_rsp=%r11
@ -1083,7 +1083,7 @@ ENTRY(do_softirq_own_stack)
LEAVE_IRQ_STACK regs=0
leaveq
ret
ENDPROC(do_softirq_own_stack)
SYM_FUNC_END(do_softirq_own_stack)
#ifdef CONFIG_XEN_PV
idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
@ -1101,7 +1101,8 @@ idtentry hypervisor_callback xen_do_hypervisor_callback has_error_code=0
* existing activation in its critical region -- if so, we pop the current
* activation and restart the handler using the previous one.
*/
ENTRY(xen_do_hypervisor_callback) /* do_hypervisor_callback(struct *pt_regs) */
/* do_hypervisor_callback(struct *pt_regs) */
SYM_CODE_START_LOCAL(xen_do_hypervisor_callback)
/*
* Since we don't modify %rdi, evtchn_do_upall(struct *pt_regs) will
@ -1119,7 +1120,7 @@ ENTRY(xen_do_hypervisor_callback) /* do_hypervisor_callback(struct *pt_regs) */
call xen_maybe_preempt_hcall
#endif
jmp error_exit
END(xen_do_hypervisor_callback)
SYM_CODE_END(xen_do_hypervisor_callback)
/*
* Hypervisor uses this for application faults while it executes.
@ -1134,7 +1135,7 @@ END(xen_do_hypervisor_callback)
* We distinguish between categories by comparing each saved segment register
* with its current contents: any discrepancy means we in category 1.
*/
ENTRY(xen_failsafe_callback)
SYM_CODE_START(xen_failsafe_callback)
UNWIND_HINT_EMPTY
movl %ds, %ecx
cmpw %cx, 0x10(%rsp)
@ -1164,7 +1165,7 @@ ENTRY(xen_failsafe_callback)
PUSH_AND_CLEAR_REGS
ENCODE_FRAME_POINTER
jmp error_exit
END(xen_failsafe_callback)
SYM_CODE_END(xen_failsafe_callback)
#endif /* CONFIG_XEN_PV */
#ifdef CONFIG_XEN_PVHVM
@ -1214,7 +1215,7 @@ idtentry machine_check do_mce has_error_code=0 paranoid=1
* Use slow, but surefire "are we in kernel?" check.
* Return: ebx=0: need swapgs on exit, ebx=1: otherwise
*/
ENTRY(paranoid_entry)
SYM_CODE_START_LOCAL(paranoid_entry)
UNWIND_HINT_FUNC
cld
PUSH_AND_CLEAR_REGS save_ret=1
@ -1248,7 +1249,7 @@ ENTRY(paranoid_entry)
FENCE_SWAPGS_KERNEL_ENTRY
ret
END(paranoid_entry)
SYM_CODE_END(paranoid_entry)
/*
* "Paranoid" exit path from exception stack. This is invoked
@ -1262,7 +1263,7 @@ END(paranoid_entry)
*
* On entry, ebx is "no swapgs" flag (1: don't need swapgs, 0: need it)
*/
ENTRY(paranoid_exit)
SYM_CODE_START_LOCAL(paranoid_exit)
UNWIND_HINT_REGS
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF_DEBUG
@ -1272,19 +1273,18 @@ ENTRY(paranoid_exit)
/* Always restore stashed CR3 value (see paranoid_entry) */
RESTORE_CR3 scratch_reg=%rbx save_reg=%r14
SWAPGS_UNSAFE_STACK
jmp .Lparanoid_exit_restore
jmp restore_regs_and_return_to_kernel
.Lparanoid_exit_no_swapgs:
TRACE_IRQS_IRETQ_DEBUG
/* Always restore stashed CR3 value (see paranoid_entry) */
RESTORE_CR3 scratch_reg=%rbx save_reg=%r14
.Lparanoid_exit_restore:
jmp restore_regs_and_return_to_kernel
END(paranoid_exit)
SYM_CODE_END(paranoid_exit)
/*
* Save all registers in pt_regs, and switch GS if needed.
*/
ENTRY(error_entry)
SYM_CODE_START_LOCAL(error_entry)
UNWIND_HINT_FUNC
cld
PUSH_AND_CLEAR_REGS save_ret=1
@ -1364,16 +1364,16 @@ ENTRY(error_entry)
call fixup_bad_iret
mov %rax, %rsp
jmp .Lerror_entry_from_usermode_after_swapgs
END(error_entry)
SYM_CODE_END(error_entry)
ENTRY(error_exit)
SYM_CODE_START_LOCAL(error_exit)
UNWIND_HINT_REGS
DISABLE_INTERRUPTS(CLBR_ANY)
TRACE_IRQS_OFF
testb $3, CS(%rsp)
jz retint_kernel
jmp retint_user
END(error_exit)
jmp .Lretint_user
SYM_CODE_END(error_exit)
/*
* Runs on exception stack. Xen PV does not go through this path at all,
@ -1383,7 +1383,7 @@ END(error_exit)
* %r14: Used to save/restore the CR3 of the interrupted context
* when PAGE_TABLE_ISOLATION is in use. Do not clobber.
*/
ENTRY(nmi)
SYM_CODE_START(nmi)
UNWIND_HINT_IRET_REGS
/*
@ -1718,21 +1718,21 @@ nmi_restore:
* about espfix64 on the way back to kernel mode.
*/
iretq
END(nmi)
SYM_CODE_END(nmi)
#ifndef CONFIG_IA32_EMULATION
/*
* This handles SYSCALL from 32-bit code. There is no way to program
* MSRs to fully disable 32-bit SYSCALL.
*/
ENTRY(ignore_sysret)
SYM_CODE_START(ignore_sysret)
UNWIND_HINT_EMPTY
mov $-ENOSYS, %eax
sysret
END(ignore_sysret)
SYM_CODE_END(ignore_sysret)
#endif
ENTRY(rewind_stack_do_exit)
SYM_CODE_START(rewind_stack_do_exit)
UNWIND_HINT_FUNC
/* Prevent any naive code from trying to unwind to our caller. */
xorl %ebp, %ebp
@ -1742,4 +1742,4 @@ ENTRY(rewind_stack_do_exit)
UNWIND_HINT_FUNC sp_offset=PTREGS_SIZE
call do_exit
END(rewind_stack_do_exit)
SYM_CODE_END(rewind_stack_do_exit)

16
arch/x86/entry/entry_64_compat.S
View File

@ -46,7 +46,7 @@
* ebp user stack
* 0(%ebp) arg6
*/
ENTRY(entry_SYSENTER_compat)
SYM_FUNC_START(entry_SYSENTER_compat)
/* Interrupts are off on entry. */
SWAPGS
@ -146,8 +146,8 @@ ENTRY(entry_SYSENTER_compat)
pushq $X86_EFLAGS_FIXED
popfq
jmp .Lsysenter_flags_fixed
GLOBAL(__end_entry_SYSENTER_compat)
ENDPROC(entry_SYSENTER_compat)
SYM_INNER_LABEL(__end_entry_SYSENTER_compat, SYM_L_GLOBAL)
SYM_FUNC_END(entry_SYSENTER_compat)
/*
* 32-bit SYSCALL entry.
@ -196,7 +196,7 @@ ENDPROC(entry_SYSENTER_compat)
* esp user stack
* 0(%esp) arg6
*/
ENTRY(entry_SYSCALL_compat)
SYM_CODE_START(entry_SYSCALL_compat)
/* Interrupts are off on entry. */
swapgs
@ -215,7 +215,7 @@ ENTRY(entry_SYSCALL_compat)
pushq %r11 /* pt_regs->flags */
pushq $__USER32_CS /* pt_regs->cs */
pushq %rcx /* pt_regs->ip */
GLOBAL(entry_SYSCALL_compat_after_hwframe)
SYM_INNER_LABEL(entry_SYSCALL_compat_after_hwframe, SYM_L_GLOBAL)
movl %eax, %eax /* discard orig_ax high bits */
pushq %rax /* pt_regs->orig_ax */
pushq %rdi /* pt_regs->di */
@ -311,7 +311,7 @@ sysret32_from_system_call:
xorl %r10d, %r10d
swapgs
sysretl
END(entry_SYSCALL_compat)
SYM_CODE_END(entry_SYSCALL_compat)
/*
* 32-bit legacy system call entry.
@ -339,7 +339,7 @@ END(entry_SYSCALL_compat)
* edi arg5
* ebp arg6
*/
ENTRY(entry_INT80_compat)
SYM_CODE_START(entry_INT80_compat)
/*
* Interrupts are off on entry.
*/
@ -416,4 +416,4 @@ ENTRY(entry_INT80_compat)
/* Go back to user mode. */
TRACE_IRQS_ON
jmp swapgs_restore_regs_and_return_to_usermode
END(entry_INT80_compat)
SYM_CODE_END(entry_INT80_compat)

4
arch/x86/entry/thunk_32.S
View File

@ -10,8 +10,7 @@
/* put return address in eax (arg1) */
.macro THUNK name, func, put_ret_addr_in_eax=0
.globl \name
\name:
SYM_CODE_START_NOALIGN(\name)
pushl %eax
pushl %ecx
pushl %edx
@ -27,6 +26,7 @@
popl %eax
ret
_ASM_NOKPROBE(\name)
SYM_CODE_END(\name)
.endm
#ifdef CONFIG_TRACE_IRQFLAGS

7
arch/x86/entry/thunk_64.S
View File

@ -12,7 +12,7 @@
/* rdi: arg1 ... normal C conventions. rax is saved/restored. */
.macro THUNK name, func, put_ret_addr_in_rdi=0
ENTRY(\name)
SYM_FUNC_START_NOALIGN(\name)
pushq %rbp
movq %rsp, %rbp
@ -33,7 +33,7 @@
call \func
jmp .L_restore
ENDPROC(\name)
SYM_FUNC_END(\name)
_ASM_NOKPROBE(\name)
.endm
@ -56,7 +56,7 @@
#if defined(CONFIG_TRACE_IRQFLAGS) \
|| defined(CONFIG_DEBUG_LOCK_ALLOC) \
|| defined(CONFIG_PREEMPTION)
.L_restore:
SYM_CODE_START_LOCAL_NOALIGN(.L_restore)
popq %r11
popq %r10
popq %r9
@ -69,4 +69,5 @@
popq %rbp
ret
_ASM_NOKPROBE(.L_restore)
SYM_CODE_END(.L_restore)
#endif

2
arch/x86/entry/vdso/Makefile
View File

@ -87,11 +87,9 @@ $(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS
#
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
#
CFLAGS_REMOVE_vdso-note.o = -pg
CFLAGS_REMOVE_vclock_gettime.o = -pg
CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg
CFLAGS_REMOVE_vgetcpu.o = -pg
CFLAGS_REMOVE_vvar.o = -pg
#
# X32 processes use x32 vDSO to access 64bit kernel data.

2
arch/x86/entry/vdso/vdso32/system_call.S
View File

@ -62,7 +62,7 @@ __kernel_vsyscall:
/* Enter using int $0x80 */
int $0x80
GLOBAL(int80_landing_pad)
SYM_INNER_LABEL(int80_landing_pad, SYM_L_GLOBAL)
/*
* Restore EDX and ECX in case they were clobbered. EBP is not

4
arch/x86/include/asm/linkage.h
View File

@ -13,10 +13,6 @@
#ifdef __ASSEMBLY__
#define GLOBAL(name) \
.globl name; \
name:
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
#define __ALIGN .p2align 4, 0x90
#define __ALIGN_STR __stringify(__ALIGN)

2
arch/x86/include/asm/processor.h
View File

@ -966,7 +966,7 @@ static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
extern unsigned long arch_align_stack(unsigned long sp);
void free_init_pages(const char *what, unsigned long begin, unsigned long end);
extern void free_kernel_image_pages(void *begin, void *end);
extern void free_kernel_image_pages(const char *what, void *begin, void *end);
void default_idle(void);
#ifdef CONFIG_XEN

1
arch/x86/include/asm/sections.h
View File

@ -6,7 +6,6 @@
#include <asm/extable.h>
extern char __brk_base[], __brk_limit[];
extern struct exception_table_entry __stop___ex_table[];
extern char __end_rodata_aligned[];
#if defined(CONFIG_X86_64)

9
arch/x86/kernel/acpi/wakeup_32.S
View File

@ -9,8 +9,7 @@
.code32
ALIGN
ENTRY(wakeup_pmode_return)
wakeup_pmode_return:
SYM_CODE_START(wakeup_pmode_return)
movw $__KERNEL_DS, %ax
movw %ax, %ss
movw %ax, %fs
@ -39,6 +38,7 @@ wakeup_pmode_return:
# jump to place where we left off
movl saved_eip, %eax
jmp *%eax
SYM_CODE_END(wakeup_pmode_return)
bogus_magic:
jmp bogus_magic
@ -72,7 +72,7 @@ restore_registers:
popfl
ret
ENTRY(do_suspend_lowlevel)
SYM_CODE_START(do_suspend_lowlevel)
call save_processor_state
call save_registers
pushl $3
@ -87,10 +87,11 @@ ret_point:
call restore_registers
call restore_processor_state
ret
SYM_CODE_END(do_suspend_lowlevel)
.data
ALIGN
ENTRY(saved_magic) .long 0
SYM_DATA(saved_magic, .long 0)
saved_eip: .long 0
# saved registers

10
arch/x86/kernel/acpi/wakeup_64.S
View File

@ -14,7 +14,7 @@
/*
* Hooray, we are in Long 64-bit mode (but still running in low memory)
*/
ENTRY(wakeup_long64)
SYM_FUNC_START(wakeup_long64)
movq saved_magic, %rax
movq $0x123456789abcdef0, %rdx
cmpq %rdx, %rax
@ -40,9 +40,9 @@ ENTRY(wakeup_long64)
movq saved_rip, %rax
jmp *%rax
ENDPROC(wakeup_long64)
SYM_FUNC_END(wakeup_long64)
ENTRY(do_suspend_lowlevel)
SYM_FUNC_START(do_suspend_lowlevel)
FRAME_BEGIN
subq $8, %rsp
xorl %eax, %eax
@ -125,7 +125,7 @@ ENTRY(do_suspend_lowlevel)
addq $8, %rsp
FRAME_END
jmp restore_processor_state
ENDPROC(do_suspend_lowlevel)
SYM_FUNC_END(do_suspend_lowlevel)
.data
saved_rbp: .quad 0
@ -136,4 +136,4 @@ saved_rbx: .quad 0
saved_rip: .quad 0
saved_rsp: .quad 0
ENTRY(saved_magic) .quad 0
SYM_DATA(saved_magic, .quad 0)

23
arch/x86/kernel/ftrace_32.S
View File

@ -12,20 +12,18 @@
#include <asm/frame.h>
#include <asm/asm-offsets.h>
# define function_hook __fentry__
EXPORT_SYMBOL(__fentry__)
#ifdef CONFIG_FRAME_POINTER
# define MCOUNT_FRAME 1 /* using frame = true */
#else
# define MCOUNT_FRAME 0 /* using frame = false */
#endif
ENTRY(function_hook)
SYM_FUNC_START(__fentry__)
ret
END(function_hook)
SYM_FUNC_END(__fentry__)
EXPORT_SYMBOL(__fentry__)
ENTRY(ftrace_caller)
SYM_CODE_START(ftrace_caller)
#ifdef CONFIG_FRAME_POINTER
/*
@ -85,11 +83,11 @@ ftrace_graph_call:
#endif
/* This is weak to keep gas from relaxing the jumps */
WEAK(ftrace_stub)
SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
ret
END(ftrace_caller)
SYM_CODE_END(ftrace_caller)
ENTRY(ftrace_regs_caller)
SYM_CODE_START(ftrace_regs_caller)
/*
* We're here from an mcount/fentry CALL, and the stack frame looks like:
*
@ -138,7 +136,7 @@ ENTRY(ftrace_regs_caller)
movl function_trace_op, %ecx # 3rd argument: ftrace_pos
pushl %esp # 4th argument: pt_regs
GLOBAL(ftrace_regs_call)
SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
call ftrace_stub
addl $4, %esp # skip 4th argument
@ -163,9 +161,10 @@ GLOBAL(ftrace_regs_call)
popl %eax
jmp .Lftrace_ret
SYM_CODE_END(ftrace_regs_caller)
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
ENTRY(ftrace_graph_caller)
SYM_CODE_START(ftrace_graph_caller)
pushl %eax
pushl %ecx
pushl %edx
@ -179,7 +178,7 @@ ENTRY(ftrace_graph_caller)
popl %ecx
popl %eax
ret
END(ftrace_graph_caller)
SYM_CODE_END(ftrace_graph_caller)
.globl return_to_handler
return_to_handler:

47
arch/x86/kernel/ftrace_64.S
View File

@ -14,9 +14,6 @@
.code64
.section .entry.text, "ax"
# define function_hook __fentry__
EXPORT_SYMBOL(__fentry__)
#ifdef CONFIG_FRAME_POINTER
/* Save parent and function stack frames (rip and rbp) */
# define MCOUNT_FRAME_SIZE (8+16*2)
@ -132,22 +129,23 @@ EXPORT_SYMBOL(__fentry__)
#ifdef CONFIG_DYNAMIC_FTRACE
ENTRY(function_hook)
SYM_FUNC_START(__fentry__)
retq
ENDPROC(function_hook)
SYM_FUNC_END(__fentry__)
EXPORT_SYMBOL(__fentry__)
ENTRY(ftrace_caller)
SYM_FUNC_START(ftrace_caller)
/* save_mcount_regs fills in first two parameters */
save_mcount_regs
GLOBAL(ftrace_caller_op_ptr)
SYM_INNER_LABEL(ftrace_caller_op_ptr, SYM_L_GLOBAL)
/* Load the ftrace_ops into the 3rd parameter */
movq function_trace_op(%rip), %rdx
/* regs go into 4th parameter (but make it NULL) */
movq $0, %rcx
GLOBAL(ftrace_call)
SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL)
call ftrace_stub
restore_mcount_regs
@ -157,10 +155,10 @@ GLOBAL(ftrace_call)
* think twice before adding any new code or changing the
* layout here.
*/
GLOBAL(ftrace_epilogue)
SYM_INNER_LABEL(ftrace_epilogue, SYM_L_GLOBAL)
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
GLOBAL(ftrace_graph_call)
SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL)
jmp ftrace_stub
#endif
@ -168,11 +166,11 @@ GLOBAL(ftrace_graph_call)
* This is weak to keep gas from relaxing the jumps.
* It is also used to copy the retq for trampolines.
*/
WEAK(ftrace_stub)
SYM_INNER_LABEL_ALIGN(ftrace_stub, SYM_L_WEAK)
retq
ENDPROC(ftrace_caller)
SYM_FUNC_END(ftrace_caller)
ENTRY(ftrace_regs_caller)
SYM_FUNC_START(ftrace_regs_caller)
/* Save the current flags before any operations that can change them */
pushfq
@ -180,7 +178,7 @@ ENTRY(ftrace_regs_caller)
save_mcount_regs 8
/* save_mcount_regs fills in first two parameters */
GLOBAL(ftrace_regs_caller_op_ptr)
SYM_INNER_LABEL(ftrace_regs_caller_op_ptr, SYM_L_GLOBAL)
/* Load the ftrace_ops into the 3rd parameter */
movq function_trace_op(%rip), %rdx
@ -209,7 +207,7 @@ GLOBAL(ftrace_regs_caller_op_ptr)
/* regs go into 4th parameter */
leaq (%rsp), %rcx
GLOBAL(ftrace_regs_call)
SYM_INNER_LABEL(ftrace_regs_call, SYM_L_GLOBAL)
call ftrace_stub
/* Copy flags back to SS, to restore them */
@ -239,16 +237,16 @@ GLOBAL(ftrace_regs_call)
* The trampoline will add the code to jump
* to the return.
*/
GLOBAL(ftrace_regs_caller_end)
SYM_INNER_LABEL(ftrace_regs_caller_end, SYM_L_GLOBAL)
jmp ftrace_epilogue
ENDPROC(ftrace_regs_caller)
SYM_FUNC_END(ftrace_regs_caller)
#else /* ! CONFIG_DYNAMIC_FTRACE */
ENTRY(function_hook)
SYM_FUNC_START(__fentry__)
cmpq $ftrace_stub, ftrace_trace_function
jnz trace
@ -261,7 +259,7 @@ fgraph_trace:
jnz ftrace_graph_caller
#endif
GLOBAL(ftrace_stub)
SYM_INNER_LABEL(ftrace_stub, SYM_L_GLOBAL)
retq
trace:
@ -279,11 +277,12 @@ trace:
restore_mcount_regs
jmp fgraph_trace
ENDPROC(function_hook)
SYM_FUNC_END(__fentry__)
EXPORT_SYMBOL(__fentry__)
#endif /* CONFIG_DYNAMIC_FTRACE */
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
ENTRY(ftrace_graph_caller)
SYM_FUNC_START(ftrace_graph_caller)
/* Saves rbp into %rdx and fills first parameter */
save_mcount_regs
@ -294,9 +293,9 @@ ENTRY(ftrace_graph_caller)
restore_mcount_regs
retq
ENDPROC(ftrace_graph_caller)
SYM_FUNC_END(ftrace_graph_caller)
ENTRY(return_to_handler)
SYM_CODE_START(return_to_handler)
UNWIND_HINT_EMPTY
subq $24, %rsp
@ -312,5 +311,5 @@ ENTRY(return_to_handler)
movq (%rsp), %rax
addq $24, %rsp
JMP_NOSPEC %rdi
END(return_to_handler)
SYM_CODE_END(return_to_handler)
#endif

62
arch/x86/kernel/head_32.S
View File

@ -64,7 +64,7 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE)
* can.
*/
__HEAD
ENTRY(startup_32)
SYM_CODE_START(startup_32)
movl pa(initial_stack),%ecx
/* test KEEP_SEGMENTS flag to see if the bootloader is asking
@ -156,7 +156,7 @@ ENTRY(startup_32)
jmp *%eax
.Lbad_subarch:
WEAK(xen_entry)
SYM_INNER_LABEL_ALIGN(xen_entry, SYM_L_WEAK)
/* Unknown implementation; there's really
nothing we can do at this point. */
ud2a
@ -172,6 +172,7 @@ num_subarch_entries = (. - subarch_entries) / 4
#else
jmp .Ldefault_entry
#endif /* CONFIG_PARAVIRT */
SYM_CODE_END(startup_32)
#ifdef CONFIG_HOTPLUG_CPU
/*
@ -179,12 +180,12 @@ num_subarch_entries = (. - subarch_entries) / 4
* up already except stack. We just set up stack here. Then call
* start_secondary().
*/
ENTRY(start_cpu0)
SYM_FUNC_START(start_cpu0)
movl initial_stack, %ecx
movl %ecx, %esp
call *(initial_code)
1: jmp 1b
ENDPROC(start_cpu0)
SYM_FUNC_END(start_cpu0)
#endif
/*
@ -195,7 +196,7 @@ ENDPROC(start_cpu0)
* If cpu hotplug is not supported then this code can go in init section
* which will be freed later
*/
ENTRY(startup_32_smp)
SYM_FUNC_START(startup_32_smp)
cld
movl $(__BOOT_DS),%eax
movl %eax,%ds
@ -362,7 +363,7 @@ ENTRY(startup_32_smp)
call *(initial_code)
1: jmp 1b
ENDPROC(startup_32_smp)
SYM_FUNC_END(startup_32_smp)
#include "verify_cpu.S"
@ -392,7 +393,7 @@ setup_once:
andl $0,setup_once_ref /* Once is enough, thanks */
ret
ENTRY(early_idt_handler_array)
SYM_FUNC_START(early_idt_handler_array)
# 36(%esp) %eflags
# 32(%esp) %cs
# 28(%esp) %eip
@ -407,9 +408,9 @@ ENTRY(early_idt_handler_array)
i = i + 1
.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
.endr
ENDPROC(early_idt_handler_array)
SYM_FUNC_END(early_idt_handler_array)
early_idt_handler_common:
SYM_CODE_START_LOCAL(early_idt_handler_common)
/*
* The stack is the hardware frame, an error code or zero, and the
* vector number.
@ -460,10 +461,10 @@ early_idt_handler_common:
decl %ss:early_recursion_flag
addl $4, %esp /* pop pt_regs->orig_ax */
iret
ENDPROC(early_idt_handler_common)
SYM_CODE_END(early_idt_handler_common)
/* This is the default interrupt "handler" :-) */
ENTRY(early_ignore_irq)
SYM_FUNC_START(early_ignore_irq)
cld
#ifdef CONFIG_PRINTK
pushl %eax
@ -498,19 +499,16 @@ ENTRY(early_ignore_irq)
hlt_loop:
hlt
jmp hlt_loop
ENDPROC(early_ignore_irq)
SYM_FUNC_END(early_ignore_irq)
__INITDATA
.align 4
GLOBAL(early_recursion_flag)
.long 0
SYM_DATA(early_recursion_flag, .long 0)
__REFDATA
.align 4
ENTRY(initial_code)
.long i386_start_kernel
ENTRY(setup_once_ref)
.long setup_once
SYM_DATA(initial_code, .long i386_start_kernel)
SYM_DATA(setup_once_ref, .long setup_once)
#ifdef CONFIG_PAGE_TABLE_ISOLATION
#define PGD_ALIGN (2 * PAGE_SIZE)
@ -553,7 +551,7 @@ EXPORT_SYMBOL(empty_zero_page)
__PAGE_ALIGNED_DATA
/* Page-aligned for the benefit of paravirt? */
.align PGD_ALIGN
ENTRY(initial_page_table)
SYM_DATA_START(initial_page_table)
.long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */
# if KPMDS == 3
.long pa(initial_pg_pmd+PGD_IDENT_ATTR),0
@ -581,17 +579,18 @@ ENTRY(initial_page_table)
.fill 1024, 4, 0
#endif
SYM_DATA_END(initial_page_table)
#endif
.data
.balign 4
ENTRY(initial_stack)
/*
* The SIZEOF_PTREGS gap is a convention which helps the in-kernel
* unwinder reliably detect the end of the stack.
*/
.long init_thread_union + THREAD_SIZE - SIZEOF_PTREGS - \
TOP_OF_KERNEL_STACK_PADDING;
/*
* The SIZEOF_PTREGS gap is a convention which helps the in-kernel unwinder
* reliably detect the end of the stack.
*/
SYM_DATA(initial_stack,
.long init_thread_union + THREAD_SIZE -
SIZEOF_PTREGS - TOP_OF_KERNEL_STACK_PADDING)
__INITRODATA
int_msg:
@ -607,27 +606,28 @@ int_msg:
*/
.data
.globl boot_gdt_descr
ALIGN
# early boot GDT descriptor (must use 1:1 address mapping)
.word 0 # 32 bit align gdt_desc.address
boot_gdt_descr:
SYM_DATA_START_LOCAL(boot_gdt_descr)
.word __BOOT_DS+7
.long boot_gdt - __PAGE_OFFSET
SYM_DATA_END(boot_gdt_descr)
# boot GDT descriptor (later on used by CPU#0):
.word 0 # 32 bit align gdt_desc.address
ENTRY(early_gdt_descr)
SYM_DATA_START(early_gdt_descr)
.word GDT_ENTRIES*8-1
.long gdt_page /* Overwritten for secondary CPUs */
SYM_DATA_END(early_gdt_descr)
/*
* The boot_gdt must mirror the equivalent in setup.S and is
* used only for booting.
*/
.align L1_CACHE_BYTES
ENTRY(boot_gdt)
SYM_DATA_START(boot_gdt)
.fill GDT_ENTRY_BOOT_CS,8,0
.quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */
.quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */
SYM_DATA_END(boot_gdt)

111
arch/x86/kernel/head_64.S
View File

@ -49,8 +49,7 @@ L3_START_KERNEL = pud_index(__START_KERNEL_map)
.text
__HEAD
.code64
.globl startup_64
startup_64:
SYM_CODE_START_NOALIGN(startup_64)
UNWIND_HINT_EMPTY
/*
* At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
@ -90,7 +89,9 @@ startup_64:
/* Form the CR3 value being sure to include the CR3 modifier */
addq $(early_top_pgt - __START_KERNEL_map), %rax
jmp 1f
ENTRY(secondary_startup_64)
SYM_CODE_END(startup_64)
SYM_CODE_START(secondary_startup_64)
UNWIND_HINT_EMPTY
/*
* At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
@ -240,7 +241,7 @@ ENTRY(secondary_startup_64)
pushq %rax # target address in negative space
lretq
.Lafter_lret:
END(secondary_startup_64)
SYM_CODE_END(secondary_startup_64)
#include "verify_cpu.S"
@ -250,30 +251,28 @@ END(secondary_startup_64)
* up already except stack. We just set up stack here. Then call
* start_secondary() via .Ljump_to_C_code.
*/
ENTRY(start_cpu0)
SYM_CODE_START(start_cpu0)
UNWIND_HINT_EMPTY
movq initial_stack(%rip), %rsp
jmp .Ljump_to_C_code
END(start_cpu0)
SYM_CODE_END(start_cpu0)
#endif
/* Both SMP bootup and ACPI suspend change these variables */
__REFDATA
.balign 8
GLOBAL(initial_code)
.quad x86_64_start_kernel
GLOBAL(initial_gs)
.quad INIT_PER_CPU_VAR(fixed_percpu_data)
GLOBAL(initial_stack)
/*
* The SIZEOF_PTREGS gap is a convention which helps the in-kernel
* unwinder reliably detect the end of the stack.
*/
.quad init_thread_union + THREAD_SIZE - SIZEOF_PTREGS
SYM_DATA(initial_code, .quad x86_64_start_kernel)
SYM_DATA(initial_gs, .quad INIT_PER_CPU_VAR(fixed_percpu_data))
/*
* The SIZEOF_PTREGS gap is a convention which helps the in-kernel unwinder
* reliably detect the end of the stack.
*/
SYM_DATA(initial_stack, .quad init_thread_union + THREAD_SIZE - SIZEOF_PTREGS)
__FINITDATA
__INIT
ENTRY(early_idt_handler_array)
SYM_CODE_START(early_idt_handler_array)
i = 0
.rept NUM_EXCEPTION_VECTORS
.if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
@ -289,9 +288,9 @@ ENTRY(early_idt_handler_array)
.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
.endr
UNWIND_HINT_IRET_REGS offset=16
END(early_idt_handler_array)
SYM_CODE_END(early_idt_handler_array)
early_idt_handler_common:
SYM_CODE_START_LOCAL(early_idt_handler_common)
/*
* The stack is the hardware frame, an error code or zero, and the
* vector number.
@ -333,17 +332,11 @@ early_idt_handler_common:
20:
decl early_recursion_flag(%rip)
jmp restore_regs_and_return_to_kernel
END(early_idt_handler_common)
SYM_CODE_END(early_idt_handler_common)
__INITDATA
.balign 4
GLOBAL(early_recursion_flag)
.long 0
#define NEXT_PAGE(name) \
.balign PAGE_SIZE; \
GLOBAL(name)
#define SYM_DATA_START_PAGE_ALIGNED(name) \
SYM_START(name, SYM_L_GLOBAL, .balign PAGE_SIZE)
#ifdef CONFIG_PAGE_TABLE_ISOLATION
/*
@ -358,11 +351,11 @@ GLOBAL(name)
*/
#define PTI_USER_PGD_FILL 512
/* This ensures they are 8k-aligned: */
#define NEXT_PGD_PAGE(name) \
.balign 2 * PAGE_SIZE; \
GLOBAL(name)
#define SYM_DATA_START_PTI_ALIGNED(name) \
SYM_START(name, SYM_L_GLOBAL, .balign 2 * PAGE_SIZE)
#else
#define NEXT_PGD_PAGE(name) NEXT_PAGE(name)
#define SYM_DATA_START_PTI_ALIGNED(name) \
SYM_DATA_START_PAGE_ALIGNED(name)
#define PTI_USER_PGD_FILL 0
#endif
@ -375,17 +368,23 @@ GLOBAL(name)
.endr
__INITDATA
NEXT_PGD_PAGE(early_top_pgt)
.balign 4
SYM_DATA_START_PTI_ALIGNED(early_top_pgt)
.fill 512,8,0
.fill PTI_USER_PGD_FILL,8,0
SYM_DATA_END(early_top_pgt)
NEXT_PAGE(early_dynamic_pgts)
SYM_DATA_START_PAGE_ALIGNED(early_dynamic_pgts)
.fill 512*EARLY_DYNAMIC_PAGE_TABLES,8,0
SYM_DATA_END(early_dynamic_pgts)
SYM_DATA(early_recursion_flag, .long 0)
.data
#if defined(CONFIG_XEN_PV) || defined(CONFIG_PVH)
NEXT_PGD_PAGE(init_top_pgt)
SYM_DATA_START_PTI_ALIGNED(init_top_pgt)
.quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
.org init_top_pgt + L4_PAGE_OFFSET*8, 0
.quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
@ -393,11 +392,13 @@ NEXT_PGD_PAGE(init_top_pgt)
/* (2^48-(2*1024*1024*1024))/(2^39) = 511 */
.quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
.fill PTI_USER_PGD_FILL,8,0
SYM_DATA_END(init_top_pgt)
NEXT_PAGE(level3_ident_pgt)
SYM_DATA_START_PAGE_ALIGNED(level3_ident_pgt)
.quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
.fill 511, 8, 0
NEXT_PAGE(level2_ident_pgt)
SYM_DATA_END(level3_ident_pgt)
SYM_DATA_START_PAGE_ALIGNED(level2_ident_pgt)
/*
* Since I easily can, map the first 1G.
* Don't set NX because code runs from these pages.
@ -407,25 +408,29 @@ NEXT_PAGE(level2_ident_pgt)
* the CPU should ignore the bit.
*/
PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
SYM_DATA_END(level2_ident_pgt)
#else
NEXT_PGD_PAGE(init_top_pgt)
SYM_DATA_START_PTI_ALIGNED(init_top_pgt)
.fill 512,8,0
.fill PTI_USER_PGD_FILL,8,0
SYM_DATA_END(init_top_pgt)
#endif
#ifdef CONFIG_X86_5LEVEL
NEXT_PAGE(level4_kernel_pgt)
SYM_DATA_START_PAGE_ALIGNED(level4_kernel_pgt)
.fill 511,8,0
.quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
SYM_DATA_END(level4_kernel_pgt)
#endif
NEXT_PAGE(level3_kernel_pgt)
SYM_DATA_START_PAGE_ALIGNED(level3_kernel_pgt)
.fill L3_START_KERNEL,8,0
/* (2^48-(2*1024*1024*1024)-((2^39)*511))/(2^30) = 510 */
.quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
.quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE_NOENC
SYM_DATA_END(level3_kernel_pgt)
NEXT_PAGE(level2_kernel_pgt)
SYM_DATA_START_PAGE_ALIGNED(level2_kernel_pgt)
/*
* 512 MB kernel mapping. We spend a full page on this pagetable
* anyway.
@ -442,8 +447,9 @@ NEXT_PAGE(level2_kernel_pgt)
*/
PMDS(0, __PAGE_KERNEL_LARGE_EXEC,
KERNEL_IMAGE_SIZE/PMD_SIZE)
SYM_DATA_END(level2_kernel_pgt)
NEXT_PAGE(level2_fixmap_pgt)
SYM_DATA_START_PAGE_ALIGNED(level2_fixmap_pgt)
.fill (512 - 4 - FIXMAP_PMD_NUM),8,0
pgtno = 0
.rept (FIXMAP_PMD_NUM)
@ -453,31 +459,32 @@ NEXT_PAGE(level2_fixmap_pgt)
.endr
/* 6 MB reserved space + a 2MB hole */
.fill 4,8,0
SYM_DATA_END(level2_fixmap_pgt)
NEXT_PAGE(level1_fixmap_pgt)
SYM_DATA_START_PAGE_ALIGNED(level1_fixmap_pgt)
.rept (FIXMAP_PMD_NUM)
.fill 512,8,0
.endr
SYM_DATA_END(level1_fixmap_pgt)
#undef PMDS
.data
.align 16
.globl early_gdt_descr
early_gdt_descr:
.word GDT_ENTRIES*8-1
early_gdt_descr_base:
.quad INIT_PER_CPU_VAR(gdt_page)
ENTRY(phys_base)
/* This must match the first entry in level2_kernel_pgt */
.quad 0x0000000000000000
SYM_DATA(early_gdt_descr, .word GDT_ENTRIES*8-1)
SYM_DATA_LOCAL(early_gdt_descr_base, .quad INIT_PER_CPU_VAR(gdt_page))
.align 16
/* This must match the first entry in level2_kernel_pgt */
SYM_DATA(phys_base, .quad 0x0)
EXPORT_SYMBOL(phys_base)
#include "../../x86/xen/xen-head.S"
__PAGE_ALIGNED_BSS
NEXT_PAGE(empty_zero_page)
SYM_DATA_START_PAGE_ALIGNED(empty_zero_page)
.skip PAGE_SIZE
SYM_DATA_END(empty_zero_page)
EXPORT_SYMBOL(empty_zero_page)

8
arch/x86/kernel/irqflags.S
View File

@ -7,20 +7,20 @@
/*
* unsigned long native_save_fl(void)
*/
ENTRY(native_save_fl)
SYM_FUNC_START(native_save_fl)
pushf
pop %_ASM_AX
ret
ENDPROC(native_save_fl)
SYM_FUNC_END(native_save_fl)
EXPORT_SYMBOL(native_save_fl)
/*
* void native_restore_fl(unsigned long flags)
* %eax/%rdi: flags
*/
ENTRY(native_restore_fl)
SYM_FUNC_START(native_restore_fl)
push %_ASM_ARG1
popf
ret
ENDPROC(native_restore_fl)
SYM_FUNC_END(native_restore_fl)
EXPORT_SYMBOL(native_restore_fl)

13
arch/x86/kernel/relocate_kernel_32.S
View File

@ -35,8 +35,7 @@
#define CP_PA_BACKUP_PAGES_MAP DATA(0x1c)
.text
.globl relocate_kernel
relocate_kernel:
SYM_CODE_START_NOALIGN(relocate_kernel)
/* Save the CPU context, used for jumping back */
pushl %ebx
@ -93,8 +92,9 @@ relocate_kernel:
addl $(identity_mapped - relocate_kernel), %eax
pushl %eax
ret
SYM_CODE_END(relocate_kernel)
identity_mapped:
SYM_CODE_START_LOCAL_NOALIGN(identity_mapped)
/* set return address to 0 if not preserving context */
pushl $0
/* store the start address on the stack */
@ -191,8 +191,9 @@ identity_mapped:
addl $(virtual_mapped - relocate_kernel), %eax
pushl %eax
ret
SYM_CODE_END(identity_mapped)
virtual_mapped:
SYM_CODE_START_LOCAL_NOALIGN(virtual_mapped)
movl CR4(%edi), %eax
movl %eax, %cr4
movl CR3(%edi), %eax
@ -208,9 +209,10 @@ virtual_mapped:
popl %esi
popl %ebx
ret
SYM_CODE_END(virtual_mapped)
/* Do the copies */
swap_pages:
SYM_CODE_START_LOCAL_NOALIGN(swap_pages)
movl 8(%esp), %edx
movl 4(%esp), %ecx
pushl %ebp
@ -270,6 +272,7 @@ swap_pages:
popl %ebx
popl %ebp
ret
SYM_CODE_END(swap_pages)
.globl kexec_control_code_size
.set kexec_control_code_size, . - relocate_kernel

13
arch/x86/kernel/relocate_kernel_64.S
View File

@ -38,8 +38,7 @@
.text
.align PAGE_SIZE
.code64
.globl relocate_kernel
relocate_kernel:
SYM_CODE_START_NOALIGN(relocate_kernel)
/*
* %rdi indirection_page
* %rsi page_list
@ -103,8 +102,9 @@ relocate_kernel:
addq $(identity_mapped - relocate_kernel), %r8
pushq %r8
ret
SYM_CODE_END(relocate_kernel)
identity_mapped:
SYM_CODE_START_LOCAL_NOALIGN(identity_mapped)
/* set return address to 0 if not preserving context */
pushq $0
/* store the start address on the stack */
@ -209,8 +209,9 @@ identity_mapped:
movq $virtual_mapped, %rax
pushq %rax
ret
SYM_CODE_END(identity_mapped)
virtual_mapped:
SYM_CODE_START_LOCAL_NOALIGN(virtual_mapped)
movq RSP(%r8), %rsp
movq CR4(%r8), %rax
movq %rax, %cr4
@ -228,9 +229,10 @@ virtual_mapped:
popq %rbp
popq %rbx
ret
SYM_CODE_END(virtual_mapped)
/* Do the copies */
swap_pages:
SYM_CODE_START_LOCAL_NOALIGN(swap_pages)
movq %rdi, %rcx /* Put the page_list in %rcx */
xorl %edi, %edi
xorl %esi, %esi
@ -283,6 +285,7 @@ swap_pages:
jmp 0b
3:
ret
SYM_CODE_END(swap_pages)
.globl kexec_control_code_size
.set kexec_control_code_size, . - relocate_kernel

12
arch/x86/kernel/setup.c
View File

@ -143,6 +143,13 @@ struct boot_params boot_params;
/*
* Machine setup..
*/
static struct resource rodata_resource = {
.name = "Kernel rodata",
.start = 0,
.end = 0,
.flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM
};
static struct resource data_resource = {
.name = "Kernel data",
.start = 0,
@ -957,7 +964,9 @@ void __init setup_arch(char **cmdline_p)
code_resource.start = __pa_symbol(_text);
code_resource.end = __pa_symbol(_etext)-1;
data_resource.start = __pa_symbol(_etext);
rodata_resource.start = __pa_symbol(__start_rodata);
rodata_resource.end = __pa_symbol(__end_rodata)-1;
data_resource.start = __pa_symbol(_sdata);
data_resource.end = __pa_symbol(_edata)-1;
bss_resource.start = __pa_symbol(__bss_start);
bss_resource.end = __pa_symbol(__bss_stop)-1;
@ -1046,6 +1055,7 @@ void __init setup_arch(char **cmdline_p)
/* after parse_early_param, so could debug it */
insert_resource(&iomem_resource, &code_resource);
insert_resource(&iomem_resource, &rodata_resource);
insert_resource(&iomem_resource, &data_resource);
insert_resource(&iomem_resource, &bss_resource);

4
arch/x86/kernel/verify_cpu.S
View File

@ -31,7 +31,7 @@
#include <asm/cpufeatures.h>
#include <asm/msr-index.h>
ENTRY(verify_cpu)
SYM_FUNC_START_LOCAL(verify_cpu)
pushf # Save caller passed flags
push $0 # Kill any dangerous flags
popf
@ -137,4 +137,4 @@ ENTRY(verify_cpu)
popf # Restore caller passed flags
xorl %eax, %eax
ret
ENDPROC(verify_cpu)
SYM_FUNC_END(verify_cpu)

16
arch/x86/kernel/vmlinux.lds.S
View File

@ -21,6 +21,9 @@
#define LOAD_OFFSET __START_KERNEL_map
#endif
#define EMITS_PT_NOTE
#define RO_EXCEPTION_TABLE_ALIGN 16
#include <asm-generic/vmlinux.lds.h>
#include <asm/asm-offsets.h>
#include <asm/thread_info.h>
@ -141,17 +144,12 @@ SECTIONS
*(.text.__x86.indirect_thunk)
__indirect_thunk_end = .;
#endif
} :text =0xcccc
/* End of text section */
_etext = .;
} :text = 0x9090
NOTES :text :note
EXCEPTION_TABLE(16) :text = 0x9090
/* .text should occupy whole number of pages */
/* End of text section, which should occupy whole number of pages */
_etext = .;
. = ALIGN(PAGE_SIZE);
X86_ALIGN_RODATA_BEGIN
RO_DATA(PAGE_SIZE)
X86_ALIGN_RODATA_END

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