diff options
| -rw-r--r-- | nptl/ChangeLog | 4 | ||||
| -rwxr-xr-x | nptl/sysdeps/pthread/configure | 57 | ||||
| -rw-r--r-- | nptl/sysdeps/pthread/configure.in | 15 |
3 files changed, 76 insertions, 0 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 072b0094a0..02238477bd 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,3 +1,7 @@ +2003-06-29 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/pthread/configure.in: Check for C cleanup handling in gcc. + 2003-06-27 Ulrich Drepper <drepper@redhat.com> * tst-cancel4.c (tf_msgrcv): Use IPC_PRIVATE in msgget call. diff --git a/nptl/sysdeps/pthread/configure b/nptl/sysdeps/pthread/configure index 50293a4f1c..f0c3da139d 100755 --- a/nptl/sysdeps/pthread/configure +++ b/nptl/sysdeps/pthread/configure @@ -59,4 +59,61 @@ if test $libc_cv_forced_unwind = yes; then #define HAVE_FORCED_UNWIND 1 _ACEOF + old_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror -fexceptions" + echo "$as_me:$LINENO: checking for C cleanup handling" >&5 +echo $ECHO_N "checking for C cleanup handling... $ECHO_C" >&6 +if test "${libc_cv_c_cleanup+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + cat >conftest.$ac_ext <<_ACEOF +#line $LINENO "configure" +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + +#include <stdio.h> +void cl (void *a) { } +extern c (void); +int +main () +{ + + int a __attribute__ ((cleanup (cl))); + puts ("test") + ; + return 0; +} +_ACEOF +rm -f conftest.$ac_objext conftest$ac_exeext +if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 + (eval $ac_link) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && + { ac_try='test -s conftest$ac_exeext' + { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 + (eval $ac_try) 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + libc_cv_c_cleanup=yes +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +libc_cv_c_cleanup=no +fi +rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $libc_cv_c_cleanup" >&5 +echo "${ECHO_T}$libc_cv_c_cleanup" >&6 + CFLAGS="$old_CFLAGS" + if test $libc_cv_c_cleanup = no; then + { { echo "$as_me:$LINENO: error: the compiler must support C cleanup handling" >&5 +echo "$as_me: error: the compiler must support C cleanup handling" >&2;} + { (exit 1); exit 1; }; } + fi fi diff --git a/nptl/sysdeps/pthread/configure.in b/nptl/sysdeps/pthread/configure.in index e4ea6830d6..922741e723 100644 --- a/nptl/sysdeps/pthread/configure.in +++ b/nptl/sysdeps/pthread/configure.in @@ -16,4 +16,19 @@ _Unwind_GetCFA (context)], libc_cv_forced_unwind=yes, libc_cv_forced_unwind=no)]) if test $libc_cv_forced_unwind = yes; then AC_DEFINE(HAVE_FORCED_UNWIND) +dnl Check for C cleanup handling. + old_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -Werror -fexceptions" + AC_CACHE_CHECK([for C cleanup handling], libc_cv_c_cleanup, [dnl + AC_TRY_LINK([ +#include <stdio.h> +void cl (void *a) { } +extern c (void);], [ + int a __attribute__ ((cleanup (cl))); + puts ("test")], +libc_cv_c_cleanup=yes, libc_cv_c_cleanup=no)]) + CFLAGS="$old_CFLAGS" + if test $libc_cv_c_cleanup = no; then + AC_MSG_ERROR([the compiler must support C cleanup handling]) + fi fi |