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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
# Local configure fragment for sysdeps/powerpc64/elf.
if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and
# linker.
AC_CACHE_CHECK(for powerpc64 TLS support, libc_cv_powerpc64_tls, [dnl
cat > conftest.s <<\EOF
.section ".tdata","awT",@progbits
x: .quad 1
x1: .quad 1
x2: .quad 1
x3: .quad 1
x4: .long 1
.section ".toc","aw"
.LC0:
.quad x@dtpmod
.quad x@dtprel
.LC1:
.quad x1@dtpmod
.quad 0
.LC2:
.quad x@tprel
.text
addi 3,2,x@got@tlsgd
addi 3,2,.LC0@toc
addi 3,2,x1@got@tlsld
addi 9,3,x1@dtprel
addis 9,3,x2@dtprel@ha
addi 9,9,x2@dtprel@l
ld 9,x3@got@dtprel(2)
addi 3,2,.LC0@toc
lwz 0,x1@dtprel(3)
ld 0,x1@dtprel(3)
addis 9,3,x2@dtprel@ha
lwz 0,x2@dtprel@l(9)
ld 0,x2@dtprel@l(9)
ld 9,x3@got@dtprel(2)
ld 9,x@got@tprel(2)
add 9,9,x@tls
ld 9,.LC2@toc(2)
add 9,9,.LC2@tls
addi 9,13,x1@tprel
addis 9,13,x2@tprel@ha
addi 9,9,x2@tprel@l
EOF
dnl
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
libc_cv_powerpc64_tls=yes
else
libc_cv_powerpc64_tls=no
fi
rm -f conftest*])
if test $libc_cv_powerpc64_tls = yes; then
AC_DEFINE(HAVE_TLS_SUPPORT)
fi
fi
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