forked from OSchip/llvm-project
40 lines
940 B
C++
40 lines
940 B
C++
// RUN: %clangxx -O1 %s -o %t && %env_tool_opts=handle_sigtrap=1 %run %t 2>&1 | FileCheck %s
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// __builtin_debugtrap() does not raise SIGTRAP on these platforms.
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// UNSUPPORTED: s390
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#include <assert.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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int in_handler;
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void handler(int signo, siginfo_t *info, void *uctx) {
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fprintf(stderr, "in_handler: %d\n", in_handler);
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fflush(stderr);
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// CHECK: in_handler: 1
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_Exit(0);
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}
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int main() {
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struct sigaction a = {}, old = {};
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a.sa_sigaction = handler;
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a.sa_flags = SA_SIGINFO;
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sigaction(SIGTRAP, &a, &old);
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a = {};
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sigaction(SIGTRAP, 0, &a);
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assert(a.sa_sigaction == handler);
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assert(a.sa_flags & SA_SIGINFO);
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in_handler = 1;
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// Check that signal handler is not postponed by sanitizer.
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// Don't use raise here as it calls any signal handler immediately.
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__builtin_debugtrap();
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in_handler = 0;
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fprintf(stderr, "UNREACHABLE\n");
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return 1;
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}
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