[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 --- Comment #7 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Wed Mar 4 18:13:44 2015 New Revision: 221192 URL: https://gcc.gnu.org/viewcvs?rev=221192root=gccview=rev Log: PR c++/65209 PR c++/65309 * decl2.c (constrain_visibility_for_template): Handle reference arguments. Added: branches/gcc-4_9-branch/gcc/testsuite/g++.dg/abi/anon4.C Modified: branches/gcc-4_9-branch/gcc/cp/ChangeLog branches/gcc-4_9-branch/gcc/cp/decl2.c
[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 --- Comment #2 from Sandro Mani manisandro at gmail dot com --- Created attachment 34874 -- https://gcc.gnu.org/bugzilla/attachment.cgi?id=34874action=edit Slightly reduced test case ==30483== Invalid free() / delete / delete[] / realloc() ==30483==at 0x4C2D143: operator delete(void*) (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==30483==by 0x400983: Foo::~Foo() (foo.cpp:4) ==30483==by 0x40099F: (anonymous namespace)::Q_QGS_s_self::innerFunction()::Holder::~Holder() (foo.cpp:21) ==30483==by 0x570F627: __run_exit_handlers (in /usr/lib64/libc-2.21.90.so) ==30483==by 0x570F674: exit (in /usr/lib64/libc-2.21.90.so) ==30483==by 0x56F5846: (below main) (in /usr/lib64/libc-2.21.90.so) ==30483== Address 0x1 is not stack'd, malloc'd or (recently) free'd
[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 Richard Biener rguenth at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2015-02-25 Known to work||4.9.2 Target Milestone|--- |5.0 Summary|[5.0 regression] Broken |[5 Regression] Broken code |code with global static |with global static |variables, invalid pointer |variables, invalid pointer |when freeing global |when freeing global |variables |variables Ever confirmed|0 |1 --- Comment #1 from Richard Biener rguenth at gcc dot gnu.org --- Confirmed. Valgrind says ==23580== Invalid free() / delete / delete[] / realloc() ==23580==at 0x4C28FAC: operator delete(void*) (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==23580==by 0x4009D4: FooData::~FooData() (foo.cpp:5) ==23580==by 0x400A13: Foo::~Foo() (foo.cpp:8) ==23580==by 0x400A4B: FooSingleton::~FooSingleton() (foo.cpp:15) ==23580==by 0x400AA2: (anonymous namespace)::Q_QGS_s_self::innerFunction()::Holder::~Holder() (foo.cpp:33) ==23580==by 0x5704058: __run_exit_handlers (exit.c:82) ==23580==by 0x57040A4: exit (exit.c:104) ==23580==by 0x56EDBEB: (below main) (libc-start.c:303) ==23580== Address 0x5a80001 is 24,513 bytes inside a block of size 72,704 alloc'd ==23580==at 0x4C277AB: malloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==23580==by 0x4EC31AF: ??? (in /usr/lib64/libstdc++.so.6.0.21) ==23580==by 0x400E859: call_init.part.0 (dl-init.c:84) ==23580==by 0x400E942: _dl_init (dl-init.c:36) ==23580==by 0x40011C9: ??? (in /lib64/ld-2.18.so)
[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Priority|P3 |P1 --- Comment #4 from Jakub Jelinek jakub at gcc dot gnu.org --- Exported symbols like _ZZN12_GLOBAL__N_112Q_QGS_s_self13innerFunctionEvEN6HolderC1Ev look very much wrong to me, anonymous namespace shouldn't be visible to other TUs. Similarly, sections containing such symbols shouldn't be linkonce.
[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added CC||jakub at gcc dot gnu.org, ||jason at gcc dot gnu.org --- Comment #3 from Jakub Jelinek jakub at gcc dot gnu.org --- Started with r213307
[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 --- Comment #5 from Jason Merrill jason at gcc dot gnu.org --- Author: jason Date: Wed Feb 25 21:46:29 2015 New Revision: 220991 URL: https://gcc.gnu.org/viewcvs?rev=220991root=gccview=rev Log: PR c++/65209 * decl2.c (constrain_visibility) [VISIBILITY_ANON]: Clear DECL_COMDAT. (constrain_visibility_for_template): Handle reference arguments. Added: trunk/gcc/testsuite/g++.dg/abi/anon4.C Modified: trunk/gcc/cp/ChangeLog trunk/gcc/cp/decl2.c
[Bug c++/65209] [5 Regression] Broken code with global static variables, invalid pointer when freeing global variables
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65209 Jakub Jelinek jakub at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #6 from Jakub Jelinek jakub at gcc dot gnu.org --- Fixed.
