http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59410
--- Comment #16 from Kostya Serebryany <kcc at gcc dot gnu.org> --- > Kernel is free to load PIE at ANY address it wants. But > you can specify where to load PIE via a linker switch > > -Ttext-segment 0x855555000000 > > to tell kernel to load PIE to a specific address. Hm. Interesting. What do I do wrong? % clang++ simple_race.cc -fsanitize=thread -Wl,-Ttext-segment=0x7d0000000000 ; (setarch x86_64 -R ./a.out ) FATAL: ThreadSanitizer can not mmap the shadow memory (something is mapped at 0x555555554000 < 0x7cf000000000) FATAL: Make sure to compile with -fPIE and to link with -pie. % clang++ simple_race.cc -fsanitize=thread ; (setarch x86_64 -R ./a.out ) FATAL: ThreadSanitizer can not mmap the shadow memory (something is mapped at 0x555555554000 < 0x7cf000000000) FATAL: Make sure to compile with -fPIE and to link with -pie. % clang++ simple_race.cc -fsanitize=thread ; ( ./a.out ) ================== WARNING: ThreadSanitizer: data race (pid=6559)
