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2dfd3d5b00
The runtime doesn't really need Compiler.h. It just needs some visibility macros which can be inlined here instead of pulling the whole heavyweight header (including its transitive closure, llvm-config.h). This is becoming more important now that Compiler.h includes C++ headers (namely, <new>), and swift/Runtime/Config.h can be included from C or Objective-C files (causing build failures). <rdar://problem/35860874>
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
//===--- InterceptTraps.cpp -----------------------------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#include <stdio.h>
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#include <signal.h>
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#include <string.h>
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#include <unistd.h>
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#include "swift/Runtime/Config.h"
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static void CrashCatcher(int Sig) {
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const char *Msg;
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switch (Sig) {
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case SIGILL: Msg = "CRASHED: SIGILL\n"; break;
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case SIGTRAP: Msg = "CRASHED: SIGTRAP\n"; break;
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case SIGABRT: Msg = "CRASHED: SIGABRT\n"; break;
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case SIGFPE: Msg = "CRASHED: SIGFPE\n"; break;
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case SIGBUS: Msg = "CRASHED: SIGBUS\n"; break;
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case SIGSEGV: Msg = "CRASHED: SIGSEGV\n"; break;
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case SIGSYS: Msg = "CRASHED: SIGSYS\n"; break;
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default: Msg = "CRASHED: SIG????\n"; break;
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}
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write(STDERR_FILENO, Msg, strlen(Msg));
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_exit(0);
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}
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SWIFT_CC(swift) SWIFT_RUNTIME_LIBRARY_VISIBILITY extern "C"
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void installTrapInterceptor() {
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// Disable buffering on stdout so that everything is printed before crashing.
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setbuf(stdout, 0);
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signal(SIGILL, CrashCatcher);
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signal(SIGTRAP, CrashCatcher);
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signal(SIGABRT, CrashCatcher);
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signal(SIGFPE, CrashCatcher);
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signal(SIGBUS, CrashCatcher);
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signal(SIGSEGV, CrashCatcher);
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signal(SIGSYS, CrashCatcher);
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}
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