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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "p.h"
#include "libgo.h"
static void (*oldHandler)(int, siginfo_t*, void*);
static void handler(int signo, siginfo_t* info, void* ctxt) {
if (oldHandler) {
oldHandler(signo, info, ctxt);
}
}
int main(void) {
struct sigaction sa;
struct sigaction osa;
int32_t res;
// Install our own signal handler.
memset(&sa, 0, sizeof sa);
sa.sa_sigaction = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_ONSTACK | SA_SIGINFO;
memset(&osa, 0, sizeof osa);
sigemptyset(&osa.sa_mask);
if (sigaction(SIGSEGV, &sa, &osa) < 0) {
perror("sigaction");
return 2;
}
if (osa.sa_handler == SIG_DFL || (osa.sa_flags&SA_ONSTACK) == 0) {
fprintf(stderr, "Go runtime did not install signal handler\n");
return 2;
}
oldHandler = osa.sa_sigaction;
if (!DidInitRun()) {
fprintf(stderr, "ERROR: buildmode=c-archive init should run\n");
return 2;
}
if (DidMainRun()) {
fprintf(stderr, "ERROR: buildmode=c-archive should not run main\n");
return 2;
}
// Make sure our signal handler is still the one in use.
if (sigaction(SIGSEGV, NULL, &sa) < 0) {
perror("sigaction check");
return 2;
}
if (sa.sa_sigaction != handler) {
fprintf(stderr, "ERROR: wrong signal handler: %p != %p\n", sa.sa_sigaction, handler);
return 2;
}
res = FromPkg();
if (res != 1024) {
fprintf(stderr, "ERROR: FromPkg()=%d, want 1024\n", res);
return 2;
}
CheckArgs();
fprintf(stderr, "PASS\n");
return 0;
}
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