diff options
Diffstat (limited to 'gdb/frame.c')
| -rw-r--r-- | gdb/frame.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gdb/frame.c b/gdb/frame.c index 4b103cd..b7a8785 100644 --- a/gdb/frame.c +++ b/gdb/frame.c @@ -2250,6 +2250,37 @@ get_frame_arch (struct frame_info *this_frame) return current_gdbarch; } +/* Stack pointer methods. */ + +CORE_ADDR +get_frame_sp (struct frame_info *this_frame) +{ + return frame_sp_unwind (this_frame->next); +} + +CORE_ADDR +frame_sp_unwind (struct frame_info *next_frame) +{ + /* Normality, an architecture that provides a way of obtaining any + frame inner-most address. */ + if (gdbarch_unwind_sp_p (current_gdbarch)) + return gdbarch_unwind_sp (current_gdbarch, next_frame); + /* Things are looking grim. If it's the inner-most frame and there + is a TARGET_READ_SP then that can be used. */ + if (next_frame->level < 0 && TARGET_READ_SP_P ()) + return TARGET_READ_SP (); + /* Now things are really are grim. Hope that the value returned by + the SP_REGNUM register is meaningful. */ + if (SP_REGNUM >= 0) + { + ULONGEST sp; + frame_unwind_unsigned_register (next_frame, SP_REGNUM, &sp); + return sp; + } + internal_error (__FILE__, __LINE__, "Missing unwind SP method"); +} + + int legacy_frame_p (struct gdbarch *current_gdbarch) { |