Yesterday I tried to build GNU MPFR Library (mpfr-2.4.1) using gcc-3.4.6 and
binutils-2.20.
During configure phase I got a message:
...
checking for TLS support... no
configure: error: please configure with --disable-thread-safe
...
I prepared a little test program (test_binutils.c) to check GNU ld and SUN ld
cat > test_binutils.c <<EOF
__thread int x = 17;
int main() {
return x != 17;
}
EOF
I compiled this programm with gcc (gcc-3.4.6)
/usr/gnu/bin/gcc -c -o test_binutils.o test_binutils.c
And then linked this program using the same options and object files.
with GNU ld
/usr/gnu/bin/ld -o gnu_ld /usr/gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crt1.o /
usr/gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crti.o /usr/ccs/lib/values-Xa.o /usr/
gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crtbegin.o test_binutils.o -L/lib -lc /
usr/gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crtend.o /usr/gnu/lib/gcc/i386-pc-
solaris2.11/3.4.6/crtn.o
And with SUN ld
/usr/bin/ld -o sun_ld /usr/gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crt1.o /usr/
gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crti.o /usr/ccs/lib/values-Xa.o /usr/gnu/
lib/gcc/i386-pc-solaris2.11/3.4.6/crtbegin.o test_binutils.o -L/lib -lc /usr/
gnu/lib/gcc/i386-pc-solaris2.11/3.4.6/crtend.o /usr/gnu/lib/gcc/i386-pc-
solaris2.11/3.4.6/crtn.o
When I run these built programs (gnu_ld and sun_ld) I get following results:
$ ./gnu_ld ; echo $?
1
$ ./sun_ld ; echo $?
0
Is this a bug in GNU ld?
I built and checked binutils-2.19.1 with the same result.
SUN ld version:
$ /usr/bin/ld --version
ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1683
--
Summary: Multithreading link. Thread-local storage (__thread) is
not working?
Product: binutils
Version: 2.20
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: YLitvinenko at astana dot oilfield dot slb dot com
CC: bug-binutils at gnu dot org
GCC build triplet: i386-pc-solaris2.11
GCC host triplet: i386-pc-solaris2.11
GCC target triplet: i386-pc-solaris2.11
http://sourceware.org/bugzilla/show_bug.cgi?id=10881
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