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Only print the stack trace if it was requested. Previously, any call into

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the Signals module that registered the handlers would cause the stack trace
to be generated. Now, you must explicitly call PrintStackTraceOnErrorSignal
in order for that to happen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28810 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2006-06-16 00:00:57 +00:00
parent 44500e3d53
commit dc6830ff25
1 changed files with 5 additions and 1 deletions
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6
lib/System/Unix/Signals.inc
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@ -24,6 +24,8 @@
namespace {
bool StackTraceRequested = false;
/// InterruptFunction - The function to call if ctrl-c is pressed.
void (*InterruptFunction)() = 0;
@ -132,7 +134,8 @@ RETSIGTYPE SignalHandler(int Sig) {
// Otherwise if it is a fault (like SEGV) output the stacktrace to
// STDERR (if we can) and reissue the signal to die...
PrintStackTrace();
if (StackTraceRequested)
PrintStackTrace();
signal(Sig, SIG_DFL);
}
@ -178,6 +181,7 @@ void sys::RemoveDirectoryOnSignal(const llvm::sys::Path& path) {
/// PrintStackTraceOnErrorSignal - When an error signal (such as SIBABRT or
/// SIGSEGV) is delivered to the process, print a stack trace and then exit.
void sys::PrintStackTraceOnErrorSignal() {
StackTraceRequested = true;
std::for_each(KillSigs, KillSigsEnd, RegisterHandler);
}