mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2024-12-28 16:52:18 +00:00
a9c3475dd6
"ARCH_HAVE_EXTRA_ELF_NOTES" enables an extra note section in the core dump. Kconfig variable is preferred over ARCH_HAVE_* macro. Co-developed-by: Jini Susan George <jinisusan.george@amd.com> Signed-off-by: Jini Susan George <jinisusan.george@amd.com> Signed-off-by: Vignesh Balasubramanian <vigbalas@amd.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20240412062138.1132841-2-vigbalas@amd.com Signed-off-by: Kees Cook <keescook@chromium.org>
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_ELF_H
|
|
#define _LINUX_ELF_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/elf.h>
|
|
#include <uapi/linux/elf.h>
|
|
|
|
#ifndef elf_read_implies_exec
|
|
/* Executables for which elf_read_implies_exec() returns TRUE will
|
|
have the READ_IMPLIES_EXEC personality flag set automatically.
|
|
Override in asm/elf.h as needed. */
|
|
# define elf_read_implies_exec(ex, have_pt_gnu_stack) 0
|
|
#endif
|
|
#ifndef SET_PERSONALITY
|
|
#define SET_PERSONALITY(ex) \
|
|
set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
|
|
#endif
|
|
|
|
#ifndef SET_PERSONALITY2
|
|
#define SET_PERSONALITY2(ex, state) \
|
|
SET_PERSONALITY(ex)
|
|
#endif
|
|
|
|
#ifndef START_THREAD
|
|
#define START_THREAD(elf_ex, regs, elf_entry, start_stack) \
|
|
start_thread(regs, elf_entry, start_stack)
|
|
#endif
|
|
|
|
#if defined(ARCH_HAS_SETUP_ADDITIONAL_PAGES) && !defined(ARCH_SETUP_ADDITIONAL_PAGES)
|
|
#define ARCH_SETUP_ADDITIONAL_PAGES(bprm, ex, interpreter) \
|
|
arch_setup_additional_pages(bprm, interpreter)
|
|
#endif
|
|
|
|
#define ELF32_GNU_PROPERTY_ALIGN 4
|
|
#define ELF64_GNU_PROPERTY_ALIGN 8
|
|
|
|
#if ELF_CLASS == ELFCLASS32
|
|
|
|
extern Elf32_Dyn _DYNAMIC [];
|
|
#define elfhdr elf32_hdr
|
|
#define elf_phdr elf32_phdr
|
|
#define elf_shdr elf32_shdr
|
|
#define elf_note elf32_note
|
|
#define elf_addr_t Elf32_Off
|
|
#define Elf_Half Elf32_Half
|
|
#define Elf_Word Elf32_Word
|
|
#define ELF_GNU_PROPERTY_ALIGN ELF32_GNU_PROPERTY_ALIGN
|
|
|
|
#else
|
|
|
|
extern Elf64_Dyn _DYNAMIC [];
|
|
#define elfhdr elf64_hdr
|
|
#define elf_phdr elf64_phdr
|
|
#define elf_shdr elf64_shdr
|
|
#define elf_note elf64_note
|
|
#define elf_addr_t Elf64_Off
|
|
#define Elf_Half Elf64_Half
|
|
#define Elf_Word Elf64_Word
|
|
#define ELF_GNU_PROPERTY_ALIGN ELF64_GNU_PROPERTY_ALIGN
|
|
|
|
#endif
|
|
|
|
/* Optional callbacks to write extra ELF notes. */
|
|
struct file;
|
|
struct coredump_params;
|
|
|
|
#ifndef CONFIG_ARCH_HAVE_EXTRA_ELF_NOTES
|
|
static inline int elf_coredump_extra_notes_size(void) { return 0; }
|
|
static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
|
|
#else
|
|
extern int elf_coredump_extra_notes_size(void);
|
|
extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
|
|
#endif
|
|
|
|
/*
|
|
* NT_GNU_PROPERTY_TYPE_0 header:
|
|
* Keep this internal until/unless there is an agreed UAPI definition.
|
|
* pr_type values (GNU_PROPERTY_*) are public and defined in the UAPI header.
|
|
*/
|
|
struct gnu_property {
|
|
u32 pr_type;
|
|
u32 pr_datasz;
|
|
};
|
|
|
|
struct arch_elf_state;
|
|
|
|
#ifndef CONFIG_ARCH_USE_GNU_PROPERTY
|
|
static inline int arch_parse_elf_property(u32 type, const void *data,
|
|
size_t datasz, bool compat,
|
|
struct arch_elf_state *arch)
|
|
{
|
|
return 0;
|
|
}
|
|
#else
|
|
extern int arch_parse_elf_property(u32 type, const void *data, size_t datasz,
|
|
bool compat, struct arch_elf_state *arch);
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_HAVE_ELF_PROT
|
|
int arch_elf_adjust_prot(int prot, const struct arch_elf_state *state,
|
|
bool has_interp, bool is_interp);
|
|
#else
|
|
static inline int arch_elf_adjust_prot(int prot,
|
|
const struct arch_elf_state *state,
|
|
bool has_interp, bool is_interp)
|
|
{
|
|
return prot;
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LINUX_ELF_H */
|