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| author | Michael Stapelberg <michael@stapelberg.de> | 2013-03-23 11:28:53 +0100 |
|---|---|---|
| committer | Michael Stapelberg <michael@stapelberg.de> | 2013-03-23 11:28:53 +0100 |
| commit | b39e15dde5ec7b96c15da9faf4ab5892501c1aae (patch) | |
| tree | 718cede1f6ca97d082c6c40b7dc3f4f6148253c0 /src/pkg/runtime/runtime.c | |
| parent | 04b08da9af0c450d645ab7389d1467308cfc2db8 (diff) | |
| download | golang-upstream/1.1_hg20130323.tar.gz | |
Imported Upstream version 1.1~hg20130323upstream/1.1_hg20130323
Diffstat (limited to 'src/pkg/runtime/runtime.c')
| -rw-r--r-- | src/pkg/runtime/runtime.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/src/pkg/runtime/runtime.c b/src/pkg/runtime/runtime.c index 4d57cbafd..d62408118 100644 --- a/src/pkg/runtime/runtime.c +++ b/src/pkg/runtime/runtime.c @@ -17,21 +17,34 @@ enum { */ void runtime·sigpanic(void); +// The GOTRACEBACK environment variable controls the +// behavior of a Go program that is crashing and exiting. +// GOTRACEBACK=0 suppress all tracebacks +// GOTRACEBACK=1 default behavior - show tracebacks but exclude runtime frames +// GOTRACEBACK=2 show tracebacks including runtime frames +// GOTRACEBACK=crash show tracebacks including runtime frames, then crash (core dump etc) int32 -runtime·gotraceback(void) +runtime·gotraceback(bool *crash) { byte *p; + if(crash != nil) + *crash = false; p = runtime·getenv("GOTRACEBACK"); if(p == nil || p[0] == '\0') return 1; // default is on + if(runtime·strcmp(p, (byte*)"crash") == 0) { + if(crash != nil) + *crash = true; + return 2; // extra information + } return runtime·atoi(p); } int32 -runtime·mcmp(byte *s1, byte *s2, uint32 n) +runtime·mcmp(byte *s1, byte *s2, uintptr n) { - uint32 i; + uintptr i; byte c1, c2; for(i=0; i<n; i++) { @@ -75,6 +88,11 @@ runtime·args(int32 c, uint8 **v) int32 runtime·isplan9; int32 runtime·iswindows; +// Information about what cpu features are available. +// Set on startup in asm_{x86/amd64}.s. +uint32 runtime·cpuid_ecx; +uint32 runtime·cpuid_edx; + void runtime·goargs(void) { @@ -156,6 +174,10 @@ TestAtomic64(void) runtime·throw("xadd64 failed"); if(runtime·atomicload64(&z64) != (2ull<<40)+2) runtime·throw("xadd64 failed"); + if(runtime·xchg64(&z64, (3ull<<40)+3) != (2ull<<40)+2) + runtime·throw("xchg64 failed"); + if(runtime·atomicload64(&z64) != (3ull<<40)+3) + runtime·throw("xchg64 failed"); } void |