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authorCatalin Marinas <catalin.marinas@arm.com>2009-02-11 13:09:54 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-19 11:27:19 +0000
commit2e1926e7b5d39eb31880152d636e8d8d011888cb (patch)
tree3d871e05d14db1358f065cd87e310c6f59430cb8 /arch/arm/include
parentbff595c15c92b9c5c8f3d32edefcef6c3cbdd59f (diff)
downloadop-kernel-dev-2e1926e7b5d39eb31880152d636e8d8d011888cb.zip
op-kernel-dev-2e1926e7b5d39eb31880152d636e8d8d011888cb.tar.gz
[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 <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/elf.h1
-rw-r--r--arch/arm/include/asm/module.h22
2 files changed, 18 insertions, 5 deletions
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index a58378c..def8eac 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 24b168d..e4dfa69 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.
*/
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