diff options
Diffstat (limited to 'gdb/defs.h')
| -rw-r--r-- | gdb/defs.h | 91 |
1 files changed, 2 insertions, 89 deletions
@@ -332,6 +332,8 @@ extern char *safe_strerror (int); extern void request_quit (int); +#define ALL_CLEANUPS ((struct cleanup *)0) + extern void do_cleanups (struct cleanup *); extern void do_final_cleanups (struct cleanup *); extern void do_run_cleanups (struct cleanup *); @@ -921,95 +923,6 @@ extern void internal_warning (const char *file, int line, extern NORETURN void nomem (long) ATTR_NORETURN; -/* Reasons for calling throw_exception(). NOTE: all reason values - must be less than zero. enum value 0 is reserved for internal use - as the return value from an initial setjmp(). The function - catch_exceptions() reserves values >= 0 as legal results from its - wrapped function. */ - -enum return_reason - { - /* User interrupt. */ - RETURN_QUIT = -2, - /* Any other error. */ - RETURN_ERROR - }; - -#define ALL_CLEANUPS ((struct cleanup *)0) - -#define RETURN_MASK(reason) (1 << (int)(-reason)) -#define RETURN_MASK_QUIT RETURN_MASK (RETURN_QUIT) -#define RETURN_MASK_ERROR RETURN_MASK (RETURN_ERROR) -#define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR) -typedef int return_mask; - -/* Throw an exception of type RETURN_REASON. Will execute a LONG JUMP - to the inner most containing exception handler established using - catch_exceptions() (or the legacy catch_errors()). - - Code normally throws an exception using error() et.al. For various - reaons, GDB also contains code that throws an exception directly. - For instance, the remote*.c targets contain CNTRL-C signal handlers - that propogate the QUIT event up the exception chain. ``This could - be a good thing or a dangerous thing.'' -- the Existential Wombat. */ - -extern NORETURN void throw_exception (enum return_reason) ATTR_NORETURN; - -/* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception - handler. If an exception (enum return_reason) is thrown using - throw_exception() than all cleanups installed since - catch_exceptions() was entered are invoked, the (-ve) exception - value is then returned by catch_exceptions. If FUNC() returns - normally (with a postive or zero return value) then that value is - returned by catch_exceptions(). It is an internal_error() for - FUNC() to return a negative value. - - For the period of the FUNC() call: UIOUT is installed as the output - builder; ERRSTRING is installed as the error/quit message; and a - new cleanup_chain is established. The old values are restored - before catch_exceptions() returns. - - The variant catch_exceptions_with_msg() is the same as - catch_exceptions() but adds the ability to return an allocated - copy of the gdb error message. This is used when a silent error is - issued and the caller wants to manually issue the error message. - - FIXME; cagney/2001-08-13: The need to override the global UIOUT - builder variable should just go away. - - This function superseeds catch_errors(). - - This function uses SETJMP() and LONGJUMP(). */ - -struct ui_out; -typedef int (catch_exceptions_ftype) (struct ui_out *ui_out, void *args); -extern int catch_exceptions (struct ui_out *uiout, - catch_exceptions_ftype *func, void *func_args, - char *errstring, return_mask mask); -extern int catch_exceptions_with_msg (struct ui_out *uiout, - catch_exceptions_ftype *func, - void *func_args, - char *errstring, char **gdberrmsg, - return_mask mask); - -/* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero - otherwize the result from CATCH_ERRORS_FTYPE is returned. It is - probably useful for CATCH_ERRORS_FTYPE to always return a non-zero - value. It's unfortunate that, catch_errors() does not return an - indication of the exact exception that it caught - quit_flag might - help. - - This function is superseeded by catch_exceptions(). */ - -typedef int (catch_errors_ftype) (void *); -extern int catch_errors (catch_errors_ftype *, void *, char *, return_mask); - -/* Template to catch_errors() that wraps calls to command - functions. */ - -typedef void (catch_command_errors_ftype) (char *, int); -extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask); - extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2); extern void vwarning (const char *, va_list args); |