blob: 466ccd1b1b6fd730d0765a5e42b0fc9c427a58e0 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
# Local configure fragment for sysdeps/x86_64/elf.
if test "$usetls" != no; then
# Check for support of thread-local storage handling in assembler and linker.
echo $ac_n "checking for x86-64 TLS support""... $ac_c" 1>&6
echo "configure:7: checking for x86-64 TLS support" >&5
if eval "test \"`echo '$''{'libc_cv_x86_64_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: leaq bar@TLSLD(%rip), %rdi
leaq bar@DTPOFF(%rax), %rcx
addq foo@GOTTPOFF(%rip), %rax
movq $bar@TPOFF, %rdx
EOF
if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:24: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
libc_cv_x86_64_tls=yes
else
libc_cv_x86_64_tls=no
fi
rm -f conftest*
fi
echo "$ac_t""$libc_cv_x86_64_tls" 1>&6
if test $libc_cv_x86_64_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
|
