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11 Commits

Author SHA1 Message Date
Alexey Samsonov 1b76da6a6c Support inline functions symbolization in Addr2Line symbolizer. 
Patch by Maxim Ostapenko!

Summary:
Right now, Addr2Line symbolizer in asan_symbolize.py doesn't support inline functions symbolization. This might be a useful feature for using ASan on embedded systems.

Test results:

$ cat test.c

static inline void FooBarBaz() {
  __sanitizer_print_stack_trace();
}

int main() {
  FooBarBaz();
  return 0;
}

$ clang  test.c -fsanitize=address -g -O2 -o test.x && ./test.x &> /tmp/test.log
$ ./projects/compiler-rt/lib/asan/scripts/asan_symbolize.py  -l /tmp/test.log
    #0 0x42095e in __sanitizer_print_stack_trace _asan_rtl_
    #1 0x4cec07 in FooBarBaz /home/max/build/llvm/asan/test.c:4
    #2 0x4cec07 in main /home/max/build/llvm/asan/test.c:8
    #3 0x7f89f0891ec4 in __libc_start_main /build/buildd/eglibc-2.19/csu/libc-start.c:287

Reviewers: glider, samsonov

Subscribers: jevinskie, llvm-commits, ygribov

Differential Revision: http://reviews.llvm.org/D12153

llvm-svn: 247642
 2015-09-14 23:56:42 +00:00
Reid Kleckner 7d9e1e1259 [Windows] Use llvm-symbolizer before using dbghelp 
Summary:
llvm-symbolizer understands both PDBs and DWARF, so it's a better bet if
it's available. It prints out the function parameter types and column
numbers, so I needed to churn the expected test output a bit.

This makes most of the llvm-symbolizer subprocessing code
target-independent. Pipes on all platforms use fd_t, and we can use the
portable ReadFromFile / WriteToFile wrappers in symbolizer_sanitizer.cc.
Only the pipe creation and process spawning is Windows-specific.

Please check that the libcdep layering is still correct. I don't know
how to reproduce the build configuration that relies on that.

Reviewers: samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11791

llvm-svn: 244616
 2015-08-11 15:51:40 +00:00
Reid Kleckner a0f78fef74 [sanitizers] Use portable file read/write wrappers on process pipes 
This fixes a minor error checking bug around calling
internal_read/write, and makes the code more portable for D11791.

llvm-svn: 244546
 2015-08-11 00:30:22 +00:00
Kuba Brecka eefb2e2703 Demangling for DlAddrSymbolizer 
On OS X, dladdr() provides mangled names only, so we need need to demangle in
DlAddrSymbolizer::SymbolizePC.

Reviewed at http://reviews.llvm.org/D8291

llvm-svn: 232910
 2015-03-22 11:38:55 +00:00
Kuba Brecka 656e184f6c Adding the implementation of atos and dladdr symbolizers for OS X. 
They are currently still *not* used, "llvm-symbolizer" is still the default symbolizer on OS X.

Reviewed at http://reviews.llvm.org/D6588

llvm-svn: 232026
 2015-03-12 10:53:18 +00:00
Kuba Brecka ae219d3d3c Symbolizer refactoring: Merge common parts of POSIXSymbolizer and WinSymbolizer 
Reviewed at http://reviews.llvm.org/D8105

llvm-svn: 231680
 2015-03-09 18:36:28 +00:00
Kuba Brecka 9930aaa9ed Symbolizer refactoring: Make WinSymbolizer use SymbolizerTool interface 
Reviewed at http://reviews.llvm.org/D8089

llvm-svn: 231478
 2015-03-06 14:33:56 +00:00
Kuba Brecka 5c4ce05d6a Symbolizer refactoring: Link symbolizer tools into a fallback chain 
Reviewed at http://reviews.llvm.org/D8049

llvm-svn: 231361
 2015-03-05 09:47:13 +00:00
Kuba Brecka b126894b96 Symbolizer refactoring: Unify access to symbolizer tools from POSIXSymbolizer 
Reviewed at http://reviews.llvm.org/D8029

llvm-svn: 231162
 2015-03-03 23:13:02 +00:00
Kuba Brecka 59e8c3b342 Symbolizer refactoring: ExtractToken and friends 
Reviewed at http://reviews.llvm.org/D7867

llvm-svn: 231027
 2015-03-02 22:15:14 +00:00
Kuba Brecka 898270513d Symbolizer refactoring: Move internals to separate files 
Reviewed at http://reviews.llvm.org/D7972

llvm-svn: 231014
 2015-03-02 21:15:09 +00:00