Hi,
Fedora 20 recently updated from clang 3.3 to clang 3.4. When I compiled Inkscape trunk with the new version and ran it, I immediately got an abort. I was playing around with clang a few months ago and appear to have set the CXXFLAGS to: -fsanitize=address-full,undefined,integer
Can anybody help me interpret the error message?
Thanks,
Tav
================================================================= ==22156==ERROR: AddressSanitizer: stack-use-after-scope on address 0x7fff03896920 at pc 0x4617518 bp 0x7fff03896370 sp 0x7fff03896368 WRITE of size 8 at 0x7fff03896920 thread T0 #0 0x4617517 in std::_Deque_base<Geom::Affine, std::allocatorGeom::Affine >::_Deque_impl::_Deque_impl() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x4617517) #1 0x46170d7 in std::_Deque_base<Geom::Affine, std::allocatorGeom::Affine >::_Deque_base() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x46170d7) #2 0x45fc91e in std::deque<Geom::Affine, std::allocatorGeom::Affine >::deque() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x45fc91e) #3 0x4c0d983 in Inkscape::Extension::Internal::PrintMetafile::PrintMetafile() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x4c0d983) #4 0x4b84106 in Inkscape::Extension::Internal::PrintEmf::PrintEmf() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x4b84106) #5 0x4c0d434 in Inkscape::Extension::Internal::PrintEmf::init() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x4c0d434) #6 0x4183e6a in Inkscape::Extension::init() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x4183e6a) #7 0x1f799e4 in inkscape_application_init(char const*, int) (/home/tavmjong/Sandbox_clang/bin/inkscape+0x1f799e4) #8 0x1306174 in sp_main_gui(int, char const**) (/home/tavmjong/Sandbox_clang/bin/inkscape+0x1306174) #9 0x1303496 in main (/home/tavmjong/Sandbox_clang/bin/inkscape +0x1303496) #10 0x394f021d64 in __libc_start_main (/lib64/libc.so.6 +0x394f021d64) #11 0x12ff5cc in _start (/home/tavmjong/Sandbox_clang/bin/inkscape +0x12ff5cc)
Address 0x7fff03896920 is located in stack of thread T0 at offset 96 in frame #0 0x4c0d65f in Inkscape::Extension::Internal::PrintMetafile::PrintMetafile() (/home/tavmjong/Sandbox_clang/bin/inkscape+0x4c0d65f)
This frame has 4 object(s): [32, 40) '' [96, 176) '' <== Memory access at offset 96 is inside this variable [224, 232) '' [288, 292) '' HINT: this may be a false positive if your program uses some custom stack unwind mechanism or swapcontext (longjmp and C++ exceptions *are* supported) SUMMARY: AddressSanitizer: stack-use-after-scope ??:0 std::_Deque_base<Geom::Affine, std::allocatorGeom::Affine
::_Deque_impl::_Deque_impl()
Shadow bytes around the buggy address: 0x10006070acd0: f3 f3 f3 f3 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 0x10006070ace0: f8 f8 f8 f8 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 0x10006070acf0: f8 f8 f8 f8 00 00 00 00 00 00 00 00 00 00 00 00 0x10006070ad00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x10006070ad10: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 =>0x10006070ad20: f2 f2 f2 f2[f8]f8 f8 f8 f8 f8 f8 f8 00 00 f4 f4 0x10006070ad30: f2 f2 f2 f2 00 f4 f4 f4 f2 f2 f2 f2 04 f4 f4 f4 0x10006070ad40: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 0x10006070ad50: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 f4 f4 f4 0x10006070ad60: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00 0x10006070ad70: 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 f1 Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Heap right redzone: fb Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack partial redzone: f4 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 ASan internal: fe ==22156==ABORTING