From f9bbf6e2e31b9638e1b4aa11fa04e9ab9b416fed Mon Sep 17 00:00:00 2001 From: Kuba Brecka Date: Thu, 12 Nov 2015 15:19:40 +0000 Subject: [tsan] Add global symbolication support into DlAddrSymbolizer `DlAddrSymbolizer` is used on OS X when we're running inside a sandbox that prevents us from spawning an external symbolizer. This patch adds support for symbolication of globals (implements `SymbolizeData`) for `DlAddrSymbolizer`. Differential Revision: http://reviews.llvm.org/D14613 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@252899 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/sanitizer_common/sanitizer_symbolizer_mac.cc | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'lib/sanitizer_common/sanitizer_symbolizer_mac.cc') diff --git a/lib/sanitizer_common/sanitizer_symbolizer_mac.cc b/lib/sanitizer_common/sanitizer_symbolizer_mac.cc index aeaa09b0b..6d2a1bf81 100644 --- a/lib/sanitizer_common/sanitizer_symbolizer_mac.cc +++ b/lib/sanitizer_common/sanitizer_symbolizer_mac.cc @@ -37,8 +37,14 @@ bool DlAddrSymbolizer::SymbolizePC(uptr addr, SymbolizedStack *stack) { return true; } -bool DlAddrSymbolizer::SymbolizeData(uptr addr, DataInfo *info) { - return false; +bool DlAddrSymbolizer::SymbolizeData(uptr addr, DataInfo *datainfo) { + Dl_info info; + int result = dladdr((const void *)addr, &info); + if (!result) return false; + const char *demangled = DemangleCXXABI(info.dli_sname); + datainfo->name = internal_strdup(demangled); + datainfo->start = (uptr)info.dli_saddr; + return true; } class AtosSymbolizerProcess : public SymbolizerProcess { -- cgit v1.2.3