Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 138 insertions, 0 deletions

diff --git a/src/rocksdb/port/stack_trace.cc b/src/rocksdb/port/stack_trace.cc
new file mode 100644
index 00000000..8f8135a4
--- /dev/null
+++ b/src/rocksdb/port/stack_trace.cc
@@ -0,0 +1,138 @@
+//  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under both the GPLv2 (found in the
+//  COPYING file in the root directory) and Apache 2.0 License
+//  (found in the LICENSE.Apache file in the root directory).
+//
+#include "port/stack_trace.h"
+
+#if defined(ROCKSDB_LITE) || !(defined(ROCKSDB_BACKTRACE) || defined(OS_MACOSX)) || \
+    defined(CYGWIN) || defined(OS_FREEBSD) || defined(OS_SOLARIS)
+
+// noop
+
+namespace rocksdb {
+namespace port {
+void InstallStackTraceHandler() {}
+void PrintStack(int /*first_frames_to_skip*/) {}
+}  // namespace port
+}  // namespace rocksdb
+
+#else
+
+#include <execinfo.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <cxxabi.h>
+
+namespace rocksdb {
+namespace port {
+
+namespace {
+
+#if defined(OS_LINUX) || defined(OS_FREEBSD)
+const char* GetExecutableName() {
+  static char name[1024];
+
+  char link[1024];
+  snprintf(link, sizeof(link), "/proc/%d/exe", getpid());
+  auto read = readlink(link, name, sizeof(name) - 1);
+  if (-1 == read) {
+    return nullptr;
+  } else {
+    name[read] = 0;
+    return name;
+  }
+}
+
+void PrintStackTraceLine(const char* symbol, void* frame) {
+  static const char* executable = GetExecutableName();
+  if (symbol) {
+    fprintf(stderr, "%s ", symbol);
+  }
+  if (executable) {
+    // out source to addr2line, for the address translation
+    const int kLineMax = 256;
+    char cmd[kLineMax];
+    snprintf(cmd, kLineMax, "addr2line %p -e %s -f -C 2>&1", frame, executable);
+    auto f = popen(cmd, "r");
+    if (f) {
+      char line[kLineMax];
+      while (fgets(line, sizeof(line), f)) {
+        line[strlen(line) - 1] = 0;  // remove newline
+        fprintf(stderr, "%s\t", line);
+      }
+      pclose(f);
+    }
+  } else {
+    fprintf(stderr, " %p", frame);
+  }
+
+  fprintf(stderr, "\n");
+}
+#elif defined(OS_MACOSX)
+
+void PrintStackTraceLine(const char* symbol, void* frame) {
+  static int pid = getpid();
+  // out source to atos, for the address translation
+  const int kLineMax = 256;
+  char cmd[kLineMax];
+  snprintf(cmd, kLineMax, "xcrun atos %p -p %d  2>&1", frame, pid);
+  auto f = popen(cmd, "r");
+  if (f) {
+    char line[kLineMax];
+    while (fgets(line, sizeof(line), f)) {
+      line[strlen(line) - 1] = 0;  // remove newline
+      fprintf(stderr, "%s\t", line);
+    }
+    pclose(f);
+  } else if (symbol) {
+    fprintf(stderr, "%s ", symbol);
+  }
+
+  fprintf(stderr, "\n");
+}
+
+#endif
+
+}  // namespace
+
+void PrintStack(int first_frames_to_skip) {
+  const int kMaxFrames = 100;
+  void* frames[kMaxFrames];
+
+  auto num_frames = backtrace(frames, kMaxFrames);
+  auto symbols = backtrace_symbols(frames, num_frames);
+
+  for (int i = first_frames_to_skip; i < num_frames; ++i) {
+    fprintf(stderr, "#%-2d  ", i - first_frames_to_skip);
+    PrintStackTraceLine((symbols != nullptr) ? symbols[i] : nullptr, frames[i]);
+  }
+  free(symbols);
+}
+
+static void StackTraceHandler(int sig) {
+  // reset to default handler
+  signal(sig, SIG_DFL);
+  fprintf(stderr, "Received signal %d (%s)\n", sig, strsignal(sig));
+  // skip the top three signal handler related frames
+  PrintStack(3);
+  // re-signal to default handler (so we still get core dump if needed...)
+  raise(sig);
+}
+
+void InstallStackTraceHandler() {
+  // just use the plain old signal as it's simple and sufficient
+  // for this use case
+  signal(SIGILL, StackTraceHandler);
+  signal(SIGSEGV, StackTraceHandler);
+  signal(SIGBUS, StackTraceHandler);
+  signal(SIGABRT, StackTraceHandler);
+}
+
+}  // namespace port
+}  // namespace rocksdb
+
+#endif