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|
# Local configure fragment for sysdeps/alpha/elf.
if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and
# linker.
echo $ac_n "checking for Alpha TLS support""... $ac_c" 1>&6
echo "configure:8: checking for Alpha TLS support" >&5
if eval "test \"`echo '$''{'libc_cv_alpha_tls'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.s <<\EOF
.section ".tdata", "awT", @progbits
.globl foo
foo: .quad 1
.section ".tbss", "awT", @nobits
.globl bar
bar: .skip 8
.text
baz:
.set nomacro
ldq $27, __tls_get_addr($29) !literal!1
ldq $16, a($29) !tlsgd!1
jsr $26, ($27), __tls_get_addr !lituse_tlsgd!1
jsr $26, ($27), __tls_get_addr !lituse_tlsldm!2
ldq $27, __tls_get_addr($29) !literal!2
ldq $16, b($29) !tlsldm!2
ldq $16, c($29) !tlsgd
ldq $16, d($29) !tlsldm
ldq $16, e($29) !tlsgd!3
ldq $16, f($29) !tlsldm!4
ldq $16, g($29) !gotdtprel
ldah $16, h($31) !dtprelhi
lda $16, i($16) !dtprello
lda $16, j($31) !dtprel
ldq $16, k($29) !gottprel
ldah $16, l($31) !tprelhi
lda $16, m($16) !tprello
lda $16, n($31) !tprel
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:46: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_alpha_tls=yes
else
libc_cv_alpha_tls=no
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_alpha_tls" 1>&6
if test $libc_cv_alpha_tls = yes; then
cat >> confdefs.h <<\EOF
#define HAVE_TLS_SUPPORT 1
EOF
fi
fi
echo $ac_n "checking for GP relative module local relocs""... $ac_c" 1>&6
echo "configure:64: checking for GP relative module local relocs" >&5
if eval "test \"`echo '$''{'libc_cv_alpha_hidden_gprel'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
cat > conftest.c <<\EOF
static int bar;
int baz __attribute__((visibility("hidden")));
int foo (void)
{
return bar + baz;
}
EOF
libc_cv_alpha_hidden_gprel=no
if { ac_try='${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&5'; { (eval echo configure:79: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
if grep -q 'bar.*!gprel' conftest.s \
&& grep -q 'baz.*!gprel' conftest.s \
&& ! grep -q 'bar.*!literal' conftest.s \
&& ! grep -q 'baz.*!literal' conftest.s; then
libc_cv_alpha_hidden_gprel=yes
fi
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_alpha_hidden_gprel" 1>&6
if test $libc_cv_alpha_hidden_gprel = yes; then
cat >> confdefs.h <<\EOF
#define PI_STATIC_AND_HIDDEN 1
EOF
fi
|
