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runtime: Don't allocate when doing a backtrace.

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From-SVN: r195615
This commit is contained in:
Ian Lance Taylor 2013-01-31 16:41:15 +00:00
parent b5fbde9215
commit 422e2fc062
1 changed files with 8 additions and 2 deletions
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10
libgo/runtime/go-callers.c
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@ -43,8 +43,14 @@ callback (void *data, uintptr_t pc, const char *filename, int lineno,
loc = &arg->locbuf[arg->index];
loc->pc = pc;
loc->filename = runtime_gostring ((const byte *) filename);
loc->function = runtime_gostring ((const byte *) function);
/* The libbacktrace library says that these strings might disappear,
but with the current implementation they won't. We can't easily
allocate memory here, so for now assume that we can save a
pointer to the strings. */
loc->filename = runtime_gostringnocopy ((const byte *) filename);
loc->function = runtime_gostringnocopy ((const byte *) function);
loc->lineno = lineno;
++arg->index;
return arg->index >= arg->max;