Comment #12 on issue 235 by [email protected]: compiling with asan
generates wrong DWARF
https://code.google.com/p/address-sanitizer/issues/detail?id=235
Hi,
with clang 3.5 this is still broken for simple cases. I tested on SLES 11
x86_64. Please see the attached example. A debugger session is pasted in
build.sh, and you can also run build.sh to generate the binary "gtest_asan"
which reproduces the problem. Both a local variable and the "this" pointer
get optimized out and can not be displayed in the debugger.
One precondition seems to be that an external function call must be there,
though I was only able to reproduce it with the gtest framework, but not
with a simple extern function.
Interestingly, the debug information for the local variable is there if
compiled with -O1 ("this" pointer is still optimized out).
I did not test this on trunk yet.
Best regards,
Martin Richtarsky
Attachments:
debuginfo.tar.gz 205 KB
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