diff options
Diffstat (limited to 'libgo/runtime/proc.c')
| -rw-r--r-- | libgo/runtime/proc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libgo/runtime/proc.c b/libgo/runtime/proc.c index de2a54b..47a472b 100644 --- a/libgo/runtime/proc.c +++ b/libgo/runtime/proc.c @@ -2454,6 +2454,15 @@ runtime_sigprof() return; } n = 0; + + if(runtime_atomicload(&runtime_in_callers) > 0) { + // If SIGPROF arrived while already fetching runtime + // callers we can have trouble on older systems + // because the unwind library calls dl_iterate_phdr + // which was not recursive in the past. + traceback = false; + } + if(traceback) { n = runtime_callers(0, prof.locbuf, nelem(prof.locbuf)); for(i = 0; i < n; i++) |