Merge pull request #4827 from ziglang/zig-cpp

support compiling and linking c++ code

1 files changed, 77 insertions, 0 deletions

diff --git a/lib/libcxxabi/src/abort_message.cpp b/lib/libcxxabi/src/abort_message.cpp
new file mode 100644
index 0000000000..d556af1c90
--- /dev/null
+++ b/lib/libcxxabi/src/abort_message.cpp
@@ -0,0 +1,77 @@
+//===------------------------- abort_message.cpp --------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include "abort_message.h"
+
+#ifdef __BIONIC__
+#include <android/api-level.h>
+#if __ANDROID_API__ >= 21
+#include <syslog.h>
+extern "C" void android_set_abort_message(const char* msg);
+#else
+#include <assert.h>
+#endif // __ANDROID_API__ >= 21
+#endif // __BIONIC__
+
+#ifdef __APPLE__
+#   if defined(__has_include) && __has_include(<CrashReporterClient.h>)
+#       define HAVE_CRASHREPORTERCLIENT_H
+#       include <CrashReporterClient.h>
+#   endif
+#endif
+
+void abort_message(const char* format, ...)
+{
+    // write message to stderr
+#if !defined(NDEBUG) || !defined(LIBCXXABI_BAREMETAL)
+#ifdef __APPLE__
+    fprintf(stderr, "libc++abi.dylib: ");
+#endif
+    va_list list;
+    va_start(list, format);
+    vfprintf(stderr, format, list);
+    va_end(list);
+    fprintf(stderr, "\n");
+#endif
+
+#if defined(__APPLE__) && defined(HAVE_CRASHREPORTERCLIENT_H)
+    // record message in crash report
+    char* buffer;
+    va_list list2;
+    va_start(list2, format);
+    vasprintf(&buffer, format, list2);
+    va_end(list2);
+    CRSetCrashLogMessage(buffer);
+#elif defined(__BIONIC__)
+    char* buffer;
+    va_list list2;
+    va_start(list2, format);
+    vasprintf(&buffer, format, list2);
+    va_end(list2);
+
+#if __ANDROID_API__ >= 21
+    // Show error in tombstone.
+    android_set_abort_message(buffer);
+
+    // Show error in logcat.
+    openlog("libc++abi", 0, 0);
+    syslog(LOG_CRIT, "%s", buffer);
+    closelog();
+#else
+    // The good error reporting wasn't available in Android until L. Since we're
+    // about to abort anyway, just call __assert2, which will log _somewhere_
+    // (tombstone and/or logcat) in older releases.
+    __assert2(__FILE__, __LINE__, __func__, buffer);
+#endif // __ANDROID_API__ >= 21
+#endif // __BIONIC__
+
+    abort();
+}