diff options
Diffstat (limited to 'sysdeps/s390/s390-64/elf/configure.in')
| -rw-r--r-- | sysdeps/s390/s390-64/elf/configure.in | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/s390/s390-64/elf/configure.in b/sysdeps/s390/s390-64/elf/configure.in new file mode 100644 index 0000000000..ac953fcff3 --- /dev/null +++ b/sysdeps/s390/s390-64/elf/configure.in @@ -0,0 +1,37 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/s390/elf. + +if test "$usetls" != no; then +# Check for support of thread-local storage handling in assembler and +# linker. +AC_CACHE_CHECK(for s390 TLS support, libc_cv_390_tls, [dnl +cat > conftest.S <<\EOF + .section ".tdata", "awT", @progbits +foo: .long 25 + .text + .quad foo@TLSGD + .quad foo@TLSLDM + .quad foo@DTPOFF + .quad foo@NTPOFF + .quad foo@GOTNTPOFF + .quad foo@INDNTPOFF + lg %r1,foo@GOTNTPOFF(%r12) + lg %r1,0(%r1):tls_load:foo + brasl %r14,__tls_get_offset@plt:tls_gdcall:foo + brasl %r14,__tls_get_offset@plt:tls_ldcall:foo +EOF +dnl +if AC_TRY_COMMAND(${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) |