| GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. |
| # Local configure fragment for sysdeps/s390/elf. |
| |
| if test "$usetls" != no; then |
| # Check for support of thread-local storage handling in assembler and |
| # linker. |
| AC_CACHE_CHECK(for s390 TLS support, libc_cv_390_tls, [dnl |
| cat > conftest.S <<\EOF |
| .section ".tdata", "awT", @progbits |
| foo: .long 25 |
| .text |
| .long foo@TLSGD |
| .long foo@TLSLDM |
| .long foo@DTPOFF |
| .long foo@NTPOFF |
| .long foo@GOTNTPOFF |
| .long foo@INDNTPOFF |
| l %r1,foo@GOTNTPOFF(%r12) |
| l %r1,0(%r1):tls_load:foo |
| bas %r14,0(%r1,%r13):tls_gdcall:foo |
| bas %r14,0(%r1,%r13):tls_ldcall:foo |
| EOF |
| dnl |
| if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS conftest.S 1>&AS_MESSAGE_LOG_FD); then |
| libc_cv_390_tls=yes |
| else |
| libc_cv_390_tls=no |
| fi |
| rm -f conftest*]) |
| if test $libc_cv_390_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) |
