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[ARM] 5384/1: unwind: Add stack unwinding support for loadable modules

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This patch adds ELF section parsing for the unwinding tables in loadable
modules together with the PREL31 relocation symbol resolving.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Catalin Marinas
2009-02-11 13:09:54 +01:00
committed by Russell King
parent bff595c15c
commit 2e1926e7b5
3 changed files with 82 additions and 5 deletions
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1
arch/arm/include/asm/elf.h
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@@ -50,6 +50,7 @@ typedef struct user_fp elf_fpregset_t;
#define R_ARM_ABS32 2
#define R_ARM_CALL 28
#define R_ARM_JUMP24 29
#define R_ARM_PREL31 42
/*
* These are used to set parameters in the core dumps.

22
arch/arm/include/asm/module.h
View File

@@ -1,15 +1,27 @@
#ifndef _ASM_ARM_MODULE_H
#define _ASM_ARM_MODULE_H
struct mod_arch_specific
{
int foo;
};
#define Elf_Shdr Elf32_Shdr
#define Elf_Sym Elf32_Sym
#define Elf_Ehdr Elf32_Ehdr
struct unwind_table;
struct mod_arch_specific
{
#ifdef CONFIG_ARM_UNWIND
Elf_Shdr *unw_sec_init;
Elf_Shdr *unw_sec_devinit;
Elf_Shdr *unw_sec_core;
Elf_Shdr *sec_init_text;
Elf_Shdr *sec_devinit_text;
Elf_Shdr *sec_core_text;
struct unwind_table *unwind_init;
struct unwind_table *unwind_devinit;
struct unwind_table *unwind_core;
#endif
};
/*
* Include the ARM architecture version.
*/