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diff src/os/linux/vm/os_linux.cpp @ 8067:5cd2fac2ae70

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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 9fae07c31641
children 4c1d8002ffb1
line wrap: on
line diff
--- a/src/os/linux/vm/os_linux.cpp	Mon Feb 18 12:49:53 2013 +0100
+++ b/src/os/linux/vm/os_linux.cpp	Tue Feb 19 08:51:56 2013 -0500
@@ -3653,7 +3653,9 @@
 
 void signalHandler(int sig, siginfo_t* info, void* uc) {
   assert(info != NULL && uc != NULL, "it must be old kernel");
+  int orig_errno = errno;  // Preserve errno value over signal handler.
   JVM_handle_linux_signal(sig, info, uc, true);
+  errno = orig_errno;
 }