[LLVMdev] Stack trace - clang
ezengbin at gmail.com
Mon Aug 9 10:37:24 PDT 2010
I am new to LLVM and am trying to modify clang for some work. I tried to
insert an instruction: prefetchnta $100 at the beginning of a function.
I encountered a problem when I tried to debug it with gdb. There was an
assertion failure and printed some information without stack trace. The
process has been finished when it printed the information. I tried to
set a breakpoint at the operator with:
The program did not stop there either. Here is what it printed. The
question is: how can I print the stack trace when there is an assertion
failure. Thanks tons.
const T& llvm::SmallVectorTemplateCommon<T>::operator(unsigned int)
const [with T = llvm::MCOperand]: Assertion `begin() + idx < end()' failed.
0 clang 0x094b90d8
0. Program arguments:
/export/home/zbin/llvm/llvm/Release+Asserts/bin/clang -cc1 -triple
i386-pc-linux-gnu -S -disable-free -main-file-name helloworld.c
-mrelocation-model static -mdisable-fp-elim -mconstructor-aliases
-target-cpu pentium4 -resource-dir
19 -fmessage-length 95 -fgnu-runtime -fdiagnostics-show-option
-fcolor-diagnostics -o /tmp/cc-x4r76v.s -x c helloworld.c
1. <eof> parser at end of file
2. Code generation
3. Running pass 'X86 AT&T-Style Assembly Printer' on function '@main'
clang: error: clang frontend command failed due to signal 6 (use -v to
clang is built with gmake ENABLE_OPTIMIZED=1 .
Also I tried with the debug version of clang. It did not work either. I
am really stumped on this bug. Thank you very much.
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