GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. # Local configure fragment for sysdeps/i386/elf. if test "$usetls" != no; then # Check for support of thread-local storage handling in assembler and # linker. AC_CACHE_CHECK(for i386 TLS support, libc_cv_386_tls, [dnl 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 $bar@TPOFF, %eax movl foo@GOTNTPOFF(%edx), %ecx movl %gs:(%ecx), %eax movl %gs:bar@NTPOFF, %eax EOF dnl if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then libc_cv_386_tls=yes else libc_cv_386_tls=no fi rm -f conftest*]) if test $libc_cv_386_tls = yes; then AC_DEFINE(HAVE_TLS_SUPPORT) fi fi dnl It is always possible to access static and hidden symbols in an dnl position independent way. AC_DEFINE(PI_STATIC_AND_HIDDEN)