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[Bug target/46861] New: alpha gcc 4.2 -fPIC visibility hidden => gp-relative relocation against dynamic symbol
- From: "jay.krell at cornell dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 9 Dec 2010 06:22:42 +0000
- Subject: [Bug target/46861] New: alpha gcc 4.2 -fPIC visibility hidden => gp-relative relocation against dynamic symbol
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46861
Summary: alpha gcc 4.2 -fPIC visibility hidden => gp-relative
relocation against dynamic symbol
Product: gcc
Version: 4.2.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jay.krell@cornell.edu
I assume this is a known bug in gcc 4.2?
No repro with 4.5.1.
I worked around it by using a local static signal handler that
calls the real one.
jay@alphalinux:~$ $HOME/gcc-4.5.1/bin/gcc -v -fPIC 1.c 2.c -shared
Target: alphaev5-unknown-linux-gnu
Configured with: /home/jay/src/gcc-4.5.1/configure -prefix=/home/jay/gcc-4.5.1
=> success
jay@alphalinux:~$ gcc -v -fPIC 1.c 2.c -shared
Target: alpha-linux-gnu
Configured with: ../src/configure -v
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --enable-shared
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --enable-nls --with-gxx-include-dir=/usr/include/c++/4.2
--program-suffix=-4.2 --enable-clocale=gnu --enable-libstdcxx-debug
--enable-objc-gc --enable-mpfr --disable-libssp --with-long-double-128
--enable-checking=release --build=alpha-linux-gnu --host=alpha-linux-gnu
--target=alpha-linux-gnu
Thread model: posix
gcc version 4.2.4 (Debian 4.2.4-6)
/usr/bin/ld: /tmp/ccNIE2XD.o: gp-relative relocation against dynamic symbol
SignalHandler
/usr/bin/ld: /tmp/ccNIE2XD.o: gp-relative relocation against dynamic symbol
SignalHandler
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: ld returned 1 exit status
jay@alphalinux:~$ cat 1.c 2.c
#include <signal.h>
void SignalHandler(int signo, siginfo_t *info, void *context)
{
}
#include <string.h>
#include <signal.h>
#pragma GCC visibility push(hidden)
void SignalHandler(int signo, siginfo_t *info, void *context);
void F2(void)
{
struct sigaction act;
int r;
memset(&act, 0, sizeof(act));
act.sa_sigaction = &SignalHandler;
sigaction(0, &act, NULL);
}