diff options
Diffstat (limited to 'sysdeps/x86_64/elf/configure')
| -rwxr-xr-x | sysdeps/x86_64/elf/configure | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/x86_64/elf/configure b/sysdeps/x86_64/elf/configure new file mode 100755 index 0000000000..466ccd1b1b --- /dev/null +++ b/sysdeps/x86_64/elf/configure @@ -0,0 +1,43 @@ + # 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 + |