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| author | Paul Mundt <lethal@linux-sh.org> | 2008-07-29 03:09:44 +0400 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2008-07-29 03:09:44 +0400 |
| commit | f15cbe6f1a4b4d9df59142fc8e4abb973302cf44 (patch) | |
| tree | 774d7b11abaaf33561ab8268bf51ddd9ceb79025 /arch/sh/include/asm/bug.h | |
| parent | 25326277d8d1393d1c66240e6255aca780f9e3eb (diff) | |
| download | linux-f15cbe6f1a4b4d9df59142fc8e4abb973302cf44.tar.xz | |
sh: migrate to arch/sh/include/
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac.
Most of the moving about was done with Sam's directions at:
http://marc.info/?l=linux-sh&m=121724823706062&w=2
with subsequent hacking and fixups entirely my fault.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/include/asm/bug.h')
| -rw-r--r-- | arch/sh/include/asm/bug.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h new file mode 100644 index 000000000000..c01718040166 --- /dev/null +++ b/arch/sh/include/asm/bug.h @@ -0,0 +1,79 @@ +#ifndef __ASM_SH_BUG_H +#define __ASM_SH_BUG_H + +#define TRAPA_BUG_OPCODE 0xc33e /* trapa #0x3e */ + +#ifdef CONFIG_GENERIC_BUG +#define HAVE_ARCH_BUG +#define HAVE_ARCH_WARN_ON + +/** + * _EMIT_BUG_ENTRY + * %1 - __FILE__ + * %2 - __LINE__ + * %3 - trap type + * %4 - sizeof(struct bug_entry) + * + * The trapa opcode itself sits in %0. + * The %O notation is used to avoid # generation. + * + * The offending file and line are encoded in the __bug_table section. + */ +#ifdef CONFIG_DEBUG_BUGVERBOSE +#define _EMIT_BUG_ENTRY \ + "\t.pushsection __bug_table,\"a\"\n" \ + "2:\t.long 1b, %O1\n" \ + "\t.short %O2, %O3\n" \ + "\t.org 2b+%O4\n" \ + "\t.popsection\n" +#else +#define _EMIT_BUG_ENTRY \ + "\t.pushsection __bug_table,\"a\"\n" \ + "2:\t.long 1b\n" \ + "\t.short %O3\n" \ + "\t.org 2b+%O4\n" \ + "\t.popsection\n" +#endif + +#define BUG() \ +do { \ + __asm__ __volatile__ ( \ + "1:\t.short %O0\n" \ + _EMIT_BUG_ENTRY \ + : \ + : "n" (TRAPA_BUG_OPCODE), \ + "i" (__FILE__), \ + "i" (__LINE__), "i" (0), \ + "i" (sizeof(struct bug_entry))); \ +} while (0) + +#define __WARN() \ +do { \ + __asm__ __volatile__ ( \ + "1:\t.short %O0\n" \ + _EMIT_BUG_ENTRY \ + : \ + : "n" (TRAPA_BUG_OPCODE), \ + "i" (__FILE__), \ + "i" (__LINE__), \ + "i" (BUGFLAG_WARNING), \ + "i" (sizeof(struct bug_entry))); \ +} while (0) + +#define WARN_ON(x) ({ \ + int __ret_warn_on = !!(x); \ + if (__builtin_constant_p(__ret_warn_on)) { \ + if (__ret_warn_on) \ + __WARN(); \ + } else { \ + if (unlikely(__ret_warn_on)) \ + __WARN(); \ + } \ + unlikely(__ret_warn_on); \ +}) + +#endif /* CONFIG_GENERIC_BUG */ + +#include <asm-generic/bug.h> + +#endif /* __ASM_SH_BUG_H */ |