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runtime: Don't block SIGTRAP while creating a new thread. 

Thanks to Uros Bizjak.

From-SVN: r196362
This commit is contained in:
Ian Lance Taylor 2013-02-28 21:56:14 +00:00
parent e664c61c84
commit 0a2f103a45
1 changed files with 6 additions and 0 deletions
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6
libgo/runtime/proc.c
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@ -1256,6 +1256,12 @@ runtime_newm(void)
// Block signals during pthread_create so that the new thread // Block signals during pthread_create so that the new thread
// starts with signals disabled. It will enable them in minit. // starts with signals disabled. It will enable them in minit.
sigfillset(&clear); sigfillset(&clear);
#ifdef SIGTRAP
// Blocking SIGTRAP reportedly breaks gdb on Alpha GNU/Linux.
sigdelset(&clear, SIGTRAP);
#endif
sigemptyset(&old); sigemptyset(&old);
sigprocmask(SIG_BLOCK, &clear, &old); sigprocmask(SIG_BLOCK, &clear, &old);
ret = pthread_create(&tid, &attr, runtime_mstart, mp); ret = pthread_create(&tid, &attr, runtime_mstart, mp);