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* [Bug c/32434] New: #pragma GCC visibility causes invalid relocation to __stach_chk_guard @ 2007-06-20 17:48 equinox-gccbug at diac24 dot net 2007-06-20 17:50 ` [Bug c/32434] " equinox-gccbug at diac24 dot net ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: equinox-gccbug at diac24 dot net @ 2007-06-20 17:48 UTC (permalink / raw) To: gcc-bugs When using, e.g., #pragma GCC visibility push(internal) together with -fstack-protector and PIC code, gcc emits an invalid R_386_GOTOFF relocation to __stack_chk_guard. (Testcase follows) Note that the problem does not happen with -fvisibility, __attribute__((visibility)) or when there is a reference to __stack_chk_guard before the #pragma. -- Summary: #pragma GCC visibility causes invalid relocation to __stach_chk_guard Product: gcc Version: 4.1.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: equinox-gccbug at diac24 dot net GCC build triplet: i686-pc-linux-gnu GCC host triplet: i686-pc-linux-gnu GCC target triplet: i686-pc-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32434 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/32434] #pragma GCC visibility causes invalid relocation to __stach_chk_guard 2007-06-20 17:48 [Bug c/32434] New: #pragma GCC visibility causes invalid relocation to __stach_chk_guard equinox-gccbug at diac24 dot net @ 2007-06-20 17:50 ` equinox-gccbug at diac24 dot net 2007-06-20 17:51 ` equinox-gccbug at diac24 dot net ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: equinox-gccbug at diac24 dot net @ 2007-06-20 17:50 UTC (permalink / raw) To: gcc-bugs ------- Comment #1 from equinox-gccbug at diac24 dot net 2007-06-20 17:50 ------- Created an attachment (id=13748) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13748&action=view) Test source Try with different flags as shown in test.sh -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32434 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/32434] #pragma GCC visibility causes invalid relocation to __stach_chk_guard 2007-06-20 17:48 [Bug c/32434] New: #pragma GCC visibility causes invalid relocation to __stach_chk_guard equinox-gccbug at diac24 dot net 2007-06-20 17:50 ` [Bug c/32434] " equinox-gccbug at diac24 dot net @ 2007-06-20 17:51 ` equinox-gccbug at diac24 dot net 2007-06-20 17:54 ` equinox-gccbug at diac24 dot net 2007-06-20 20:53 ` pinskia at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: equinox-gccbug at diac24 dot net @ 2007-06-20 17:51 UTC (permalink / raw) To: gcc-bugs ------- Comment #2 from equinox-gccbug at diac24 dot net 2007-06-20 17:51 ------- Created an attachment (id=13749) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13749&action=view) Script for compiling test.c with different flags # sh ./test.sh -fno-stack-protector : -fno-stack-protector -fvisibility=internal: -fno-stack-protector -DVIS_ATTR: -fno-stack-protector -DVIS_PRAGMA: -fno-stack-protector -DVIS_PRAGMA -DREF_BEFORE: -fstack-protector-all : -fstack-protector-all -fvisibility=internal: -fstack-protector-all -DVIS_ATTR: -fstack-protector-all -DVIS_PRAGMA: /usr/lib/gcc/i686-colt-linux-gnu/4.1.2/../../../../i686-colt-linux-gnu/bin/ld: /tmp/ccHCfgCk.o(.text+0x14): unresolvable relocation against symbol `__stack_chk_guard@@LIBSSP_1.0' /usr/lib/gcc/i686-colt-linux-gnu/4.1.2/../../../../i686-colt-linux-gnu/bin/ld: final link failed: Nonrepresentable section on output collect2: ld returned 1 exit status -fstack-protector-all -DVIS_PRAGMA -DREF_BEFORE: -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32434 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/32434] #pragma GCC visibility causes invalid relocation to __stach_chk_guard 2007-06-20 17:48 [Bug c/32434] New: #pragma GCC visibility causes invalid relocation to __stach_chk_guard equinox-gccbug at diac24 dot net 2007-06-20 17:50 ` [Bug c/32434] " equinox-gccbug at diac24 dot net 2007-06-20 17:51 ` equinox-gccbug at diac24 dot net @ 2007-06-20 17:54 ` equinox-gccbug at diac24 dot net 2007-06-20 20:53 ` pinskia at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: equinox-gccbug at diac24 dot net @ 2007-06-20 17:54 UTC (permalink / raw) To: gcc-bugs ------- Comment #3 from equinox-gccbug at diac24 dot net 2007-06-20 17:54 ------- # gcc -v Using built-in specs. Target: i686-colt-linux-gnu Configured with: ../gcc-4.1.2/configure --prefix=/usr --infodir=/usr/share/info --mandir=/usr/share/man --build=i686-colt-linux-gnu --host=i686-colt-linux-gnu --target=i686-colt-linux-gnu --enable-libssp --enable-shared --enable-__cxa_atexit --enable-threads=posix --libexecdir=/usr/lib --enable-clocale --enable-languages=c,c++,objc,obj-c++ --enable-multilib=no Thread model: posix gcc version 4.1.2 # uname -a Linux neptune 2.6.22-rc4 #19 PREEMPT Sat Jun 9 18:51:59 CEST 2007 i686 athlon-4 i386 GNU/Linux # /lib/libc.so.6 | grep 'GNU C' GNU C Library stable release version 2.3.6, by Roland McGrath et al. Compiled by GNU CC version 4.1.0 colt stage0. cmdline / output see test.sh. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32434 ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c/32434] #pragma GCC visibility causes invalid relocation to __stach_chk_guard 2007-06-20 17:48 [Bug c/32434] New: #pragma GCC visibility causes invalid relocation to __stach_chk_guard equinox-gccbug at diac24 dot net ` (2 preceding siblings ...) 2007-06-20 17:54 ` equinox-gccbug at diac24 dot net @ 2007-06-20 20:53 ` pinskia at gcc dot gnu dot org 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu dot org @ 2007-06-20 20:53 UTC (permalink / raw) To: gcc-bugs ------- Comment #4 from pinskia at gcc dot gnu dot org 2007-06-20 20:53 ------- Related to PR 20297. -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- BugsThisDependsOn| |20297 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32434 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2007-06-20 20:53 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2007-06-20 17:48 [Bug c/32434] New: #pragma GCC visibility causes invalid relocation to __stach_chk_guard equinox-gccbug at diac24 dot net 2007-06-20 17:50 ` [Bug c/32434] " equinox-gccbug at diac24 dot net 2007-06-20 17:51 ` equinox-gccbug at diac24 dot net 2007-06-20 17:54 ` equinox-gccbug at diac24 dot net 2007-06-20 20:53 ` pinskia at gcc dot gnu dot org
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