Reviewers: titzer, Dmitry Lomov (chromium), rossberg,
Description:
Implement OS::DumpBacktrace() for Mac OS.
Please review this at https://codereview.chromium.org/18431004/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files:
M src/platform-macos.cc
Index: src/platform-macos.cc
diff --git a/src/platform-macos.cc b/src/platform-macos.cc
index
e8c25fae93ad0cce3ec54a96a50270fc762c47f8..7677507ec59d0a51c5b7d6d0bfc605f75ecdda9e
100644
--- a/src/platform-macos.cc
+++ b/src/platform-macos.cc
@@ -53,6 +53,7 @@
#include <stdlib.h>
#include <string.h>
#include <errno.h>
+#include <cxxabi.h>
#undef MAP_TYPE
@@ -189,7 +190,33 @@ void OS::DebugBreak() {
void OS::DumpBacktrace() {
- // Currently unsupported.
+ // If weak link to execinfo lib has failed, ie because we are on 10.4,
abort.
+ if (backtrace == NULL) return;
+ void* trace[100];
+ int size = backtrace(trace, ARRAY_SIZE(trace));
+ char** symbols = backtrace_symbols(trace, size);
+ fprintf(stderr, "\n==== C stack trace
===============================\n\n");
+ if (size == 0) {
+ fprintf(stderr, "(empty)\n");
+ } else if (symbols == NULL) {
+ fprintf(stderr, "(no symbols)\n");
+ } else {
+ for (int i = 1; i < size; ++i) {
+ fprintf(stderr, "%2d: ", i);
+ char mangled[201];
+ if (sscanf(symbols[i], "%*[^(]%*[(]%200[^)+]", mangled) == 1) { //
NOLINT
+ int status;
+ size_t length;
+ char* demangled = abi::__cxa_demangle(mangled, NULL, &length,
&status);
+ fprintf(stderr, "%s\n", demangled ? demangled : mangled);
+ free(demangled);
+ } else {
+ fprintf(stderr, "??\n");
+ }
+ }
+ }
+ fflush(stderr);
+ free(symbols);
}
--
--
v8-dev mailing list
[email protected]
http://groups.google.com/group/v8-dev
---
You received this message because you are subscribed to the Google Groups "v8-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
