From 2e1926e7b5d39eb31880152d636e8d8d011888cb Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Wed, 11 Feb 2009 13:09:54 +0100 Subject: [ARM] 5384/1: unwind: Add stack unwinding support for loadable modules 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 Signed-off-by: Russell King --- arch/arm/include/asm/elf.h | 1 + arch/arm/include/asm/module.h | 22 +++++++++++++++++----- 2 files changed, 18 insertions(+), 5 deletions(-) (limited to 'arch/arm/include/asm') diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h index a58378c343b..def8eac6e89 100644 --- a/arch/arm/include/asm/elf.h +++ b/arch/arm/include/asm/elf.h @@ -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. diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h index 24b168dc31a..e4dfa69abb6 100644 --- a/arch/arm/include/asm/module.h +++ b/arch/arm/include/asm/module.h @@ -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. */ -- cgit v1.2.3