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| author |   Paul Mundt <lethal@linux-sh.org> | 2009-08-22 03:49:58 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-08-22 03:49:58 +0900 |
| commit | c153a58e715e16ffcd6c4b3da7fc6b4a556bf917 (patch) | |
| tree | 89639b00047f341f5ebf0b2029a861e3718f641f /arch/sh/include/asm/bug.h | |
| parent | sh: Export unwind_stack() to satisfy modular oprofile. (diff) | |
| parent | sh: Handle the DWARF op, DW_CFA_undefined (diff) | |
| download | linux-dev-c153a58e715e16ffcd6c4b3da7fc6b4a556bf917.tar.xz linux-dev-c153a58e715e16ffcd6c4b3da7fc6b4a556bf917.zip | |
Merge branch 'sh/dwarf-unwinder' of git://github.com/mfleming/linux-2.6 into sh/dwarf-unwinder
Diffstat (limited to 'arch/sh/include/asm/bug.h')
| -rw-r--r-- | arch/sh/include/asm/bug.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h index c01718040166..b7d9822fd6c2 100644 --- a/arch/sh/include/asm/bug.h +++ b/arch/sh/include/asm/bug.h @@ -1,6 +1,7 @@ #ifndef __ASM_SH_BUG_H #define __ASM_SH_BUG_H +#define TRAPA_UNWINDER_BUG_OPCODE 0xc33b /* trapa #0x3b */ #define TRAPA_BUG_OPCODE 0xc33e /* trapa #0x3e */ #ifdef CONFIG_GENERIC_BUG @@ -72,6 +73,30 @@ do { \ unlikely(__ret_warn_on); \ }) +#define UNWINDER_BUG() \ +do { \ + __asm__ __volatile__ ( \ + "1:\t.short %O0\n" \ + _EMIT_BUG_ENTRY \ + : \ + : "n" (TRAPA_UNWINDER_BUG_OPCODE), \ + "i" (__FILE__), \ + "i" (__LINE__), "i" (0), \ + "i" (sizeof(struct bug_entry))); \ +} while (0) + +#define UNWINDER_BUG_ON(x) ({ \ + int __ret_unwinder_on = !!(x); \ + if (__builtin_constant_p(__ret_unwinder_on)) { \ + if (__ret_unwinder_on) \ + UNWINDER_BUG(); \ + } else { \ + if (unlikely(__ret_unwinder_on)) \ + UNWINDER_BUG(); \ + } \ + unlikely(__ret_unwinder_on); \ +}) + #endif /* CONFIG_GENERIC_BUG */ #include <asm-generic/bug.h> |