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powerpc: Don't use a function descriptor for system call table

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There is no need to create a function descriptor for the system call
table. By using one we force the system call table into the text
section and it really belongs in the rodata section.

This also removes another use of dot symbols.

Signed-off-by: Anton Blanchard <anton@samba.org>
This commit is contained in:
Anton Blanchard 2014-02-04 16:05:53 +11:00
parent ad0289e4ac
commit c857c43b34
2 changed files with 8 additions and 4 deletions
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6
arch/powerpc/kernel/entry_64.S
View File

@ -39,8 +39,8 @@
* System calls.
*/
.section ".toc","aw"
.SYS_CALL_TABLE:
.tc .sys_call_table[TC],.sys_call_table
SYS_CALL_TABLE:
.tc sys_call_table[TC],sys_call_table
/* This value is used to mark exception frames on the stack. */
exception_marker:
@ -162,7 +162,7 @@ system_call: /* label this so stack traces look sane */
* Need to vector to 32 Bit or default sys_call_table here,
* based on caller's run-mode / personality.
*/
ld r11,.SYS_CALL_TABLE@toc(2)
ld r11,SYS_CALL_TABLE@toc(2)
andi. r10,r10,_TIF_32BIT
beq 15f
addi r11,r11,8 /* use 32-bit syscall entries */

6
arch/powerpc/kernel/systbl.S
View File

@ -36,6 +36,8 @@
#define PPC_SYS_SPU(func) PPC_SYS(func)
#define SYSX_SPU(f, f3264, f32) SYSX(f, f3264, f32)
.section .rodata,"a"
#ifdef CONFIG_PPC64
#define sys_sigpending sys_ni_syscall
#define sys_old_getrlimit sys_ni_syscall
@ -43,5 +45,7 @@
.p2align 3
#endif
_GLOBAL(sys_call_table)
.globl sys_call_table
sys_call_table:
#include <asm/systbl.h>