diff options
Diffstat (limited to 'gcc/except.h')
| -rw-r--r-- | gcc/except.h | 63 |
1 files changed, 7 insertions, 56 deletions
diff --git a/gcc/except.h b/gcc/except.h index ef511c90515..72fd76ef646 100644 --- a/gcc/except.h +++ b/gcc/except.h @@ -19,6 +19,13 @@ You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ +/* No include guards here, but define an include file marker anyway, so + that the compiler can keep track of where this file is included. This + is e.g. used to avoid including this file in front-end specific files. */ +#ifndef GCC_EXCEPT_H +# define GCC_EXCEPT_H +#endif + #include "hashtab.h" #include "vecprim.h" #include "vecir.h" @@ -222,14 +229,10 @@ struct GTY(()) eh_status }; -/* Test: is exception handling turned on? */ -extern int doing_eh (int); - /* Invokes CALLBACK for every exception handler label. Only used by old loop hackery; should not be used by new code. */ extern void for_each_eh_label (void (*) (rtx)); -extern void init_eh (void); extern void init_eh_for_function (void); extern void remove_eh_landing_pad (eh_landing_pad); @@ -287,58 +290,6 @@ extern void assign_filter_values (void); extern eh_region get_eh_region_from_rtx (const_rtx); extern eh_landing_pad get_eh_landing_pad_from_rtx (const_rtx); -/* If non-NULL, this is a function that returns a function decl to be - executed if an unhandled exception is propagated out of a cleanup - region. For example, in C++, an exception thrown by a destructor - during stack unwinding is required to result in a call to - `std::terminate', so the C++ version of this function returns a - FUNCTION_DECL for `std::terminate'. */ -extern tree (*lang_protect_cleanup_actions) (void); - - -/* Just because the user configured --with-sjlj-exceptions=no doesn't - mean that we can use call frame exceptions. Detect that the target - has appropriate support. */ - -#ifndef MUST_USE_SJLJ_EXCEPTIONS -# if defined (EH_RETURN_DATA_REGNO) \ - && (defined (TARGET_UNWIND_INFO) \ - || (DWARF2_UNWIND_INFO \ - && (defined (EH_RETURN_HANDLER_RTX) \ - || defined (HAVE_eh_return)))) -# define MUST_USE_SJLJ_EXCEPTIONS 0 -# else -# define MUST_USE_SJLJ_EXCEPTIONS 1 -# endif -#endif - -#ifdef CONFIG_SJLJ_EXCEPTIONS -# if CONFIG_SJLJ_EXCEPTIONS == 1 -# define USING_SJLJ_EXCEPTIONS 1 -# endif -# if CONFIG_SJLJ_EXCEPTIONS == 0 -# define USING_SJLJ_EXCEPTIONS 0 -# if !defined(EH_RETURN_DATA_REGNO) - #error "EH_RETURN_DATA_REGNO required" -# endif -# if ! (defined(TARGET_UNWIND_INFO) || DWARF2_UNWIND_INFO) - #error "{DWARF2,TARGET}_UNWIND_INFO required" -# endif -# if !defined(TARGET_UNWIND_INFO) \ - && !(defined(EH_RETURN_HANDLER_RTX) || defined(HAVE_eh_return)) - #error "EH_RETURN_HANDLER_RTX or eh_return required" -# endif -/* Usually the above error checks will have already triggered an - error, but backends may set MUST_USE_SJLJ_EXCEPTIONS for their own - reasons. */ -# if MUST_USE_SJLJ_EXCEPTIONS - #error "Must use SJLJ exceptions but configured not to" -# endif -# endif -#else -# define USING_SJLJ_EXCEPTIONS MUST_USE_SJLJ_EXCEPTIONS -#endif - struct GTY(()) throw_stmt_node { gimple stmt; int lp_nr; |