mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 22:30:12 +00:00
80 lines
1.9 KiB
Plaintext
80 lines
1.9 KiB
Plaintext
sinclude(./aclocal.m4)dnl Autoconf lossage
|
|
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
|
|
# Local configure fragment for sysdeps/alpha/elf.
|
|
|
|
if test "$usetls" != no; then
|
|
# Check for support of thread-local storage handling in assembler and
|
|
# linker.
|
|
AC_CACHE_CHECK(for Alpha TLS support, libc_cv_alpha_tls, [dnl
|
|
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($31) !tprel
|
|
EOF
|
|
dnl
|
|
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
|
|
libc_cv_alpha_tls=yes
|
|
else
|
|
libc_cv_alpha_tls=no
|
|
fi
|
|
rm -f conftest*])
|
|
if test $libc_cv_alpha_tls = yes; then
|
|
AC_DEFINE(HAVE_TLS_SUPPORT)
|
|
fi
|
|
fi
|
|
|
|
AC_CACHE_CHECK(for GP relative module local relocs, libc_cv_alpha_hidden_gprel, [dnl
|
|
cat > conftest.c <<\EOF
|
|
static int bar;
|
|
int baz __attribute__((visibility("hidden")));
|
|
|
|
int foo (void)
|
|
{
|
|
return bar + baz;
|
|
}
|
|
EOF
|
|
dnl
|
|
|
|
libc_cv_alpha_hidden_gprel=no
|
|
if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&AC_FD_CC); 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*])
|
|
if test $libc_cv_alpha_hidden_gprel = yes; then
|
|
AC_DEFINE(PI_STATIC_AND_HIDDEN)
|
|
fi
|