Mercurial > hg > truffle
comparison src/os/bsd/vm/os_bsd.cpp @ 8067:5cd2fac2ae70
6749267: Signal handler should save/restore errno
Summary: Save errno before processing signal, then restore it.
Reviewed-by: acorn, sspitsyn
| author | hseigel |
|---|---|
| date | Tue, 19 Feb 2013 08:51:56 -0500 |
| parents | 758935f7c23f |
| children | 5fc51c1ecdeb 63e54c37ac64 bf06968a8a00 |
comparison
equal
deleted
inserted
replaced
| 8066:b5e3ec9c69fa | 8067:5cd2fac2ae70 |
|---|---|
| 2885 JVM_handle_bsd_signal(int signo, siginfo_t* siginfo, | 2885 JVM_handle_bsd_signal(int signo, siginfo_t* siginfo, |
| 2886 void* ucontext, int abort_if_unrecognized); | 2886 void* ucontext, int abort_if_unrecognized); |
| 2887 | 2887 |
| 2888 void signalHandler(int sig, siginfo_t* info, void* uc) { | 2888 void signalHandler(int sig, siginfo_t* info, void* uc) { |
| 2889 assert(info != NULL && uc != NULL, "it must be old kernel"); | 2889 assert(info != NULL && uc != NULL, "it must be old kernel"); |
| 2890 int orig_errno = errno; // Preserve errno value over signal handler. | |
| 2890 JVM_handle_bsd_signal(sig, info, uc, true); | 2891 JVM_handle_bsd_signal(sig, info, uc, true); |
| 2892 errno = orig_errno; | |
| 2891 } | 2893 } |
| 2892 | 2894 |
| 2893 | 2895 |
| 2894 // This boolean allows users to forward their own non-matching signals | 2896 // This boolean allows users to forward their own non-matching signals |
| 2895 // to JVM_handle_bsd_signal, harmlessly. | 2897 // to JVM_handle_bsd_signal, harmlessly. |