diff options
Diffstat (limited to 'gdb/frame.h')
| -rw-r--r-- | gdb/frame.h | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/gdb/frame.h b/gdb/frame.h index 1872f4f..269f11e 100644 --- a/gdb/frame.h +++ b/gdb/frame.h @@ -93,6 +93,35 @@ extern void get_frame_id (struct frame_info *fi, struct frame_id *id); for an invalid frame). */ extern int frame_relative_level (struct frame_info *fi); +/* Return the frame's type. Some are real, some are signal + trampolines, and some are completly artificial (dummy). */ + +enum frame_type +{ + /* A true stack frame, created by the target program during normal + execution. */ + NORMAL_FRAME, + /* A fake frame, created by GDB when performing an inferior function + call. */ + DUMMY_FRAME, + /* In a signal handler, various OSs handle this in various ways. + The main thing is that the frame may be far from normal. */ + SIGTRAMP_FRAME +}; +extern enum frame_type get_frame_type (struct frame_info *); + +/* FIXME: cagney/2002-11-10: Some targets want to directly mark a + frame as being of a specific type. This shouldn't be necessary. + PC_IN_SIGTRAMP() indicates a SIGTRAMP_FRAME and PC_IN_CALL_DUMMY() + indicates a DUMMY_FRAME. I suspect the real problem here is that + get_prev_frame() only sets initialized after INIT_EXTRA_FRAME_INFO + as been called. Consequently, some targets found that the frame's + type was wrong and tried to fix it. The correct fix is to modify + get_prev_frame() so that it initializes the frame's type before + calling any other functions. */ +extern void deprecated_set_frame_type (struct frame_info *, + enum frame_type type); + /* Unwind the stack frame so that the value of REGNUM, in the previous (up, older) frame is returned. If VALUEP is NULL, don't fetch/compute the value. Instead just return the location of the @@ -227,15 +256,8 @@ struct frame_info moment leave this as speculation. */ int level; - /* Nonzero if this is a frame associated with calling a signal handler. - - Set by machine-dependent code. On some machines, if - the machine-dependent code fails to check for this, the backtrace - will look relatively normal. For example, on the i386 - #3 0x158728 in sighold () - On other machines (e.g. rs6000), the machine-dependent code better - set this to prevent us from trying to print it like a normal frame. */ - int signal_handler_caller; + /* The frame's type. */ + enum frame_type type; /* For each register, address of where it was saved on entry to the frame, or zero if it was not saved on entry to this frame. |