Current mainline gcc libgomp configures its 64-bit multilib without tls, due to
this failure:
configure:15341: /home/alan/build/gcc/./gcc/xgcc -B/home/alan/build/gcc/./gcc/
-B/usr/powerpc-linux/bin/ -B/usr/powerpc-linux
/lib/ -isystem /usr/powerpc-linux/include -isystem
/usr/powerpc-linux/sys-include -m64 -fPIC -mstrict-align -o conftest -g -
O2 -pthread -pthread -static conftest.c -lrt >&5
/tmp/cca53zpV.o: In function `main':
/home/alan/build/gcc/powerpc-linux/64/libgomp/conftest.c:34: undefined reference
to `__tls_get_addr'
Really, the -fPIC -mstrict-align shouldn't be there, but ld ought to optimise
the resulting call to __tls_get_addr anyway. In fact, ld does do the
optimisation but leaves an R_PPC_NONE reloc referencing __tls_get_addr, which
then results in the undefined reference error. (__tls_get_addr isn't available
in static glibc)
--
Summary: undefined __tls_get_addr even after tls optimisation
removes all refs
Product: binutils
Version: 2.20
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: amodra at bigpond dot net dot au
ReportedBy: amodra at bigpond dot net dot au
CC: bug-binutils at gnu dot org
GCC target triplet: powerpc*-*-linux
http://sourceware.org/bugzilla/show_bug.cgi?id=11047
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