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| author | Roland McGrath <roland@gnu.org> | 2002-10-15 22:50:43 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2002-10-15 22:50:43 +0000 |
| commit | 9b21e6bcf8986e076ca8aa4862bb76b76605e591 (patch) | |
| tree | 9654d1175dfcc8eb8d7cfd9dc8958b207d988e4f /configure.in | |
| parent | 146a03db8950595fe7ce64e4c9c397746d92d4b9 (diff) | |
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2002-10-16 Jakub Jelinek <jakub@redhat.com>
* include/libc-symbols.h (attribute_tls_model_ie): Define.
* include/errno.h (errno): Define to __libc_errno in libc.so.
Add attribute_tls_model_ie.
* include/netdb.h (h_errno): Define to __libc_h_errno in libc.so.
Add attribute_tls_model_ie.
* include/resolv.h (_res): Define to __libc_res in libc.so. Add
attribute_tls_model_ie.
* inet/herrno.c (__libc_h_errno): Add hidden alias to h_errno.
(h_errno): Define.
* resolv/res_libc.c (__libc_res): Add hidden alias to _res.
(_res): Define.
* sysdeps/generic/bits/libc-tsd.h (__libc_tsd_define): Add
attribute_tls_model_ie.
* sysdeps/generic/errno-loc.c (errno): Only undefine if not using
__thread.
* sysdeps/generic/errno.c (__libc_errno): Add hidden alias to errno.
* sysdeps/unix/sysv/linux/i386/sysdep.h (SYSCALL_ERROR_HANDLER): Use
__libc_errno in USE___THREAD case.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h (SYSCALL_ERROR_HANDLER):
Likewise.
* configure.in (HAVE_TLS_MODEL_ATTRIBUTE): Check for
__attribute__((tls_model (""))).
* configure: Rebuilt.
* config.h.in (HAVE_TLS_MODEL_ATTRIBUTE): Add.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/configure.in b/configure.in index c115be5414..89830313a1 100644 --- a/configure.in +++ b/configure.in @@ -1624,6 +1624,22 @@ if test "$libc_cv_gcc___thread" = yes; then AC_DEFINE(HAVE___THREAD) fi +if test "$libc_cv_gcc___thread" = yes; then + dnl Check whether the compiler supports the tls_model attribute. + AC_CACHE_CHECK([for tls_model attribute], libc_cv_gcc_tls_model_attr, [dnl + cat > conftest.c <<\EOF +extern __thread int a __attribute__((tls_model ("initial-exec"))); +EOF + if AC_TRY_COMMAND([${CC-cc} $CFLAGS -S -Werror conftest.c >&AC_FD_CC]); then + libc_cv_gcc_tls_model_attr=yes + else + libc_cv_gcc_tls_model_attr=no + fi + rm -f conftest*]) + if test "$libc_cv_gcc_tls_model_attr" = yes; then + AC_DEFINE(HAVE_TLS_MODEL_ATTRIBUTE) + fi +fi dnl Check whether we have the gd library available. AC_MSG_CHECKING(for libgd) |