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StdlibUnittest: add a prototype of a Swift-based driver for trapping tests

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This technique is about 10x faster than using lit as the driver.


Swift SVN r20668
This commit is contained in:
Dmitri Hrybenko
2014-07-29 10:26:32 +00:00
parent ab33113ad7
commit 8c277e35e9
3 changed files with 376 additions and 0 deletions
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34
stdlib/unittest/InterceptTraps.cpp Normal file
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#include <stdio.h>
#include <signal.h>
#include <string.h>
#include <unistd.h>
static void CrashCatcher(int Sig) {
const char *Msg;
switch (Sig) {
case SIGILL: Msg = "CRASHED: SIGILL\n"; break;
case SIGTRAP: Msg = "CRASHED: SIGTRAP\n"; break;
case SIGABRT: Msg = "CRASHED: SIGABRT\n"; break;
case SIGFPE: Msg = "CRASHED: SIGFPE\n"; break;
case SIGBUS: Msg = "CRASHED: SIGBUS\n"; break;
case SIGSEGV: Msg = "CRASHED: SIGSEGV\n"; break;
case SIGSYS: Msg = "CRASHED: SIGSYS\n"; break;
default: Msg = "CRASHED: SIG????\n"; break;
}
write(STDERR_FILENO, Msg, strlen(Msg));
_exit(0);
}
extern "C" void swift_stdlib_installTrapInterceptor() {
// Disable buffering on stdout so that everything is printed before crashing.
setbuf(stdout, 0);
signal(SIGILL, CrashCatcher);
signal(SIGTRAP, CrashCatcher);
signal(SIGABRT, CrashCatcher);
signal(SIGFPE, CrashCatcher);
signal(SIGBUS, CrashCatcher);
signal(SIGSEGV, CrashCatcher);
signal(SIGSYS, CrashCatcher);
}