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author | Frederic Weisbecker | 2009-10-18 01:09:09 +0200 |
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committer | Frederic Weisbecker | 2009-10-18 01:12:33 +0200 |
commit | 0f8f86c7bdd1c954fbe153af437a0d91a6c5721a (patch) | |
tree | 94a8d419a470a4f9852ca397bb9bbe48db92ff5c /arch/sh/include/asm/bug.h | |
parent | Merge branch 'linus' into tracing/hw-breakpoints (diff) | |
parent | perf tools: Move dereference after NULL test (diff) | |
download | kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.gz kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.tar.xz kernel-qcow2-linux-0f8f86c7bdd1c954fbe153af437a0d91a6c5721a.zip |
Merge commit 'perf/core' into perf/hw-breakpoint
Conflicts:
kernel/Makefile
kernel/trace/Makefile
kernel/trace/trace.h
samples/Makefile
Merge reason: We need to be uptodate with the perf events development
branch because we plan to rewrite the breakpoints API on top of
perf events.
Diffstat (limited to 'arch/sh/include/asm/bug.h')
-rw-r--r-- | arch/sh/include/asm/bug.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h index c01718040166..d02c01b3e6b9 100644 --- a/arch/sh/include/asm/bug.h +++ b/arch/sh/include/asm/bug.h @@ -2,6 +2,7 @@ #define __ASM_SH_BUG_H #define TRAPA_BUG_OPCODE 0xc33e /* trapa #0x3e */ +#define BUGFLAG_UNWINDER (1 << 1) #ifdef CONFIG_GENERIC_BUG #define HAVE_ARCH_BUG @@ -72,6 +73,36 @@ do { \ unlikely(__ret_warn_on); \ }) +#define UNWINDER_BUG() \ +do { \ + __asm__ __volatile__ ( \ + "1:\t.short %O0\n" \ + _EMIT_BUG_ENTRY \ + : \ + : "n" (TRAPA_BUG_OPCODE), \ + "i" (__FILE__), \ + "i" (__LINE__), \ + "i" (BUGFLAG_UNWINDER), \ + "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); \ +}) + +#else + +#define UNWINDER_BUG BUG +#define UNWINDER_BUG_ON BUG_ON + #endif /* CONFIG_GENERIC_BUG */ #include <asm-generic/bug.h> |