On Wed, Oct 10, 2012 at 04:16:03PM -0400, Jack Howarth wrote: > On Wed, Oct 10, 2012 at 04:50:22PM +0200, Rainer Orth wrote: > > Jack Howarth <howa...@bromo.med.uc.edu> writes: > > > > > Have you tried a gcc trunk build on linux configured to use emutls > > > instead > > > of tls to confirm that this issue is really darwin-specific? These > > > failures might > > > also appear on sparc-sun-solaris2.9 but we don't have recent gcc trunk > > > testresults > > > for that. Perhaps Rainer can try a build of current gcc trunk and see if > > > it > > > impacts sparc-sun-solaris2.9's use of emutls as well. > > > Jack > > > > There's no reason to test on a emutls-only target, just configure with > > --disable-tls on any target. I probably won't be able to test Solaris 9 > > (SPARC or x86) before the weekend. > > > > Rainer > > A quick build of gcc trunk (r192324) on Fedoa 15 x86_64 using --disable-tls > shows... > > Native configuration is x86_64-unknown-linux-gnu > > === gcc tests === > > > Running target unix > > === gcc Summary === > > # of expected passes 499 > # of unsupported tests 5 > /home/howarth/work-gcc/gcc/xgcc version 4.8.0 20121010 (experimental) (GCC) > > === g++ tests === > > > Running target unix > FAIL: g++.dg/tls/thread_local3.C -std=gnu++11 execution test > FAIL: g++.dg/tls/thread_local3g.C -std=gnu++11 execution test > FAIL: g++.dg/tls/thread_local4.C -std=gnu++11 execution test > FAIL: g++.dg/tls/thread_local4g.C -std=gnu++11 execution test > FAIL: g++.dg/tls/thread_local5.C -std=gnu++11 execution test > FAIL: g++.dg/tls/thread_local5g.C -std=gnu++11 execution test > FAIL: g++.dg/tls/thread_local7.C scan-assembler-not \\\\.data > FAIL: g++.dg/tls/thread_local7g.C scan-assembler-not \\\\.data > > === g++ Summary === > > # of expected passes 105 > # of unexpected failures 8 > # of expected failures 2 > # of unsupported tests 6 > /home/howarth/work-gcc/gcc/testsuite/g++/../../g++ version 4.8.0 20121010 > (experimental) (GCC) > > > Compiler version: 4.8.0 20121010 (experimental) (GCC) > Platform: x86_64-unknown-linux-gnu > configure flags: --disable-ppl --disable-cloog > --prefix=/home/howarth/dist-gcc --enable-languages=c,c++ --disable-multilib > --disable-lto --disable-tls --disable-bootstrap > > The first failure backtraces as... > > $ gdb ./thread_local3.exe > GNU gdb (GDB) Fedora (7.3.1-48.fc15) > Copyright (C) 2011 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-redhat-linux-gnu". > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>... > Reading symbols from > /home/howarth/work-gcc/gcc/testsuite/g++/thread_local3.exe...(no debugging > symbols found)...done. > (gdb) r > Starting program: /home/howarth/work-gcc/gcc/testsuite/g++/thread_local3.exe > [Thread debugging using libthread_db enabled] > [New Thread 0x7ffff7aaa700 (LWP 27463)] > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7ffff7aaa700 (LWP 27463)] > 0x0000000000000000 in ?? () > (gdb) bt > #0 0x0000000000000000 in ?? () > #1 0x00007ffff7d50f44 in (anonymous namespace)::list::run() () at > ../../../../gcc/libstdc++-v3/libsupc++/atexit_thread.cc:71 > #2 0x00000035e9e07933 in __nptl_deallocate_tsd () at pthread_create.c:156 > #3 0x00000035e9e07b4f in start_thread (arg=0x7ffff7aaa700) at > pthread_create.c:312 > #4 0x00000035e96e0e6d in clone () at > ../sysdeps/unix/sysv/linux/x86_64/clone.S:115 > (gdb) > >
Valgrind shows... $ valgrind --leak-check=full ./thread_local3.exe ==27634== Memcheck, a memory error detector ==27634== Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. ==27634== Using Valgrind-3.6.1 and LibVEX; rerun with -h for copyright info ==27634== Command: ./thread_local3.exe ==27634== ==27634== Thread 2: ==27634== Invalid read of size 4 ==27634== at 0x4C69F20: (anonymous namespace)::list::run() (atexit_thread.cc:70) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== Address 0x595f390 is 16 bytes inside a block of size 536 free'd ==27634== at 0x4A055FE: free (vg_replace_malloc.c:366) ==27634== by 0x4F5512A: emutls_destroy (emutls.c:75) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== ==27634== Invalid read of size 8 ==27634== at 0x4C69F3D: (anonymous namespace)::list::run() (atexit_thread.cc:71) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== Address 0x595f398 is 24 bytes inside a block of size 536 free'd ==27634== at 0x4A055FE: free (vg_replace_malloc.c:366) ==27634== by 0x4F5512A: emutls_destroy (emutls.c:75) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== ==27634== Invalid read of size 8 ==27634== at 0x4C69F41: (anonymous namespace)::list::run() (atexit_thread.cc:71) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== Address 0x595f3a0 is 32 bytes inside a block of size 536 free'd ==27634== at 0x4A055FE: free (vg_replace_malloc.c:366) ==27634== by 0x4F5512A: emutls_destroy (emutls.c:75) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== ==27634== Invalid read of size 8 ==27634== at 0x4C69F49: (anonymous namespace)::list::run() (atexit_thread.cc:72) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== Address 0x595f388 is 8 bytes inside a block of size 536 free'd ==27634== at 0x4A055FE: free (vg_replace_malloc.c:366) ==27634== by 0x4F5512A: emutls_destroy (emutls.c:75) ==27634== by 0x35E9E07932: __nptl_deallocate_tsd (pthread_create.c:156) ==27634== by 0x35E9E07B4E: start_thread (pthread_create.c:312) ==27634== by 0x35E96E0E6C: clone (clone.S:115) ==27634== ==27634== ==27634== HEAP SUMMARY: ==27634== in use at exit: 824 bytes in 2 blocks ==27634== total heap usage: 13 allocs, 11 frees, 2,794 bytes allocated ==27634== ==27634== Thread 1: ==27634== 536 bytes in 1 blocks are possibly lost in loss record 2 of 2 ==27634== at 0x4A0649D: malloc (vg_replace_malloc.c:236) ==27634== by 0x4F45A1B: emutls_alloc (emutls.c:102) ==27634== by 0x4F551D3: __emutls_get_address (emutls.c:183) ==27634== by 0x4C69F7F: (anonymous namespace)::run_current() (atexit_thread.cc:91) ==27634== by 0x35E96388C0: __run_exit_handlers (exit.c:78) ==27634== by 0x35E9638944: exit (exit.c:100) ==27634== by 0x35E9621363: (below main) (libc-start.c:258) ==27634== ==27634== LEAK SUMMARY: ==27634== definitely lost: 0 bytes in 0 blocks ==27634== indirectly lost: 0 bytes in 0 blocks ==27634== possibly lost: 536 bytes in 1 blocks ==27634== still reachable: 288 bytes in 1 blocks ==27634== suppressed: 0 bytes in 0 blocks ==27634== Reachable blocks (those to which a pointer was found) are not shown. ==27634== To see them, rerun with: --leak-check=full --show-reachable=yes ==27634== ==27634== For counts of detected and suppressed errors, rerun with: -v ==27634== ERROR SUMMARY: 9 errors from 5 contexts (suppressed: 6 from 6)
