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Groups > linux.kernel > #1294778
| From | Josh Poimboeuf <jpoimboe@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v15 05/25] x86/asm: Add C versions of frame pointer macros |
| Date | 2015-12-18 13:50 +0100 |
| Message-ID | <qH2DV-5IP-43@gated-at.bofh.it> (permalink) |
| References | <qH2DT-5IP-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Add C versions of the frame pointer macros which can be used to create a stack frame in inline assembly. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> --- arch/x86/include/asm/frame.h | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h index cec213b..6e4d170 100644 --- a/arch/x86/include/asm/frame.h +++ b/arch/x86/include/asm/frame.h @@ -1,16 +1,17 @@ #ifndef _ASM_X86_FRAME_H #define _ASM_X86_FRAME_H -#ifdef __ASSEMBLY__ - #include <asm/asm.h> /* * These are stack frame creation macros. They should be used by every * callable non-leaf asm function to make kernel stack traces more reliable. */ + #ifdef CONFIG_FRAME_POINTER +#ifdef __ASSEMBLY__ + .macro FRAME_BEGIN push %_ASM_BP _ASM_MOV %_ASM_SP, %_ASM_BP @@ -20,6 +21,16 @@ pop %_ASM_BP .endm +#else /* !__ASSEMBLY__ */ + +#define FRAME_BEGIN \ + "push %" _ASM_BP "\n" \ + _ASM_MOV "%" _ASM_SP ", %" _ASM_BP "\n" + +#define FRAME_END "pop %" _ASM_BP "\n" + +#endif /* __ASSEMBLY__ */ + #define FRAME_OFFSET __ASM_SEL(4, 8) #else /* !CONFIG_FRAME_POINTER */ @@ -30,5 +41,4 @@ #endif /* CONFIG_FRAME_POINTER */ -#endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_FRAME_H */ -- 2.4.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH v15 00/25] Compile-time stack metadata validation Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 10/25] x86/paravirt: Add stack frame dependency to PVOP inline asm calls Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 12/25] x86/amd: Set ELF function type for vide() Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 17/25] x86/asm/crypto: Move jump_table to .rodata section Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 25/25] x86/stacktool: Ignore head_$(BITS) files. Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 05/25] x86/asm: Add C versions of frame pointer macros Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 21/25] x86/asm: Create stack frames in rwsem functions Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 22/25] x86/asm/efi: Create a stack frame in efi_call() Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 24/25] x86/uaccess: Add stack frame output operand in get_user inline asm Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 08/25] x86/stacktool: Add ignore macros Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100 [PATCH v15 02/25] tools: Make list.h self-sufficient Josh Poimboeuf <jpoimboe@redhat.com> - 2015-12-18 13:50 +0100
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