1 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
2 # Local configure fragment for sysdeps/i386/elf.
4 if test "$usetls" != no; then
5 # Check for support of thread-local storage handling in assembler and
7 AC_CACHE_CHECK(for i386 TLS support, libc_cv_386_tls, [dnl
8 cat > conftest.s <<\EOF
9 .section ".tdata", "awT", @progbits
12 .section ".tbss", "awT", @nobits
16 baz: leal bar@TLSLDM(%ebx), %eax
17 leal bar@DTPOFF(%eax), %edx
18 subl foo@GOTTPOFF(%edx), %eax
20 movl foo@GOTNTPOFF(%edx), %ecx
22 movl %gs:bar@NTPOFF, %eax
25 if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
31 if test $libc_cv_386_tls = yes; then
32 AC_DEFINE(HAVE_TLS_SUPPORT)
36 dnl It is always possible to access static and hidden symbols in an
37 dnl position independent way.
38 AC_DEFINE(PI_STATIC_AND_HIDDEN)