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path: root/sysdeps/i386/elf/configure
blob: 03f16fc798552ae458c55e5145ac192a59ec6346 (plain) (blame)
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 # Local configure fragment for sysdeps/i386/elf.

if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and
# linker.
echo $ac_n "checking for i386 TLS support""... $ac_c" 1>&6
echo "configure:8: checking for i386 TLS support" >&5
if eval "test \"`echo '$''{'libc_cv_386_tls'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  cat > conftest.s <<\EOF
	.section ".tdata", "awT", @progbits
	.globl foo
foo:	.long	1
	.section ".tbss", "awT", @nobits
	.globl bar
bar:	.skip	4
	.text
baz:	leal	bar@TLSLDM(%ebx), %eax
	leal	bar@DTPOFF(%eax), %edx
	subl	foo@GOTTPOFF(%edx), %eax
	subl	$bar@TPOFF, %eax
	movl	foo@GOTNTPOFF(%edx), %ecx
	movl	%gs:(%ecx), %eax
	movl	%gs:bar@NTPOFF, %eax
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:28: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
  libc_cv_386_tls=yes
else
  libc_cv_386_tls=no
fi
rm -f conftest*
fi

echo "$ac_t""$libc_cv_386_tls" 1>&6
if test $libc_cv_386_tls = yes; then
  cat >> confdefs.h <<\EOF
#define HAVE_TLS_SUPPORT 1
EOF

fi
fi

cat >> confdefs.h <<\EOF
#define PI_STATIC_AND_HIDDEN 1
EOF