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| author | Andrew Cagney <cagney@redhat.com> | 2003-06-09 01:02:07 +0000 |
|---|---|---|
| committer | Andrew Cagney <cagney@redhat.com> | 2003-06-09 01:02:07 +0000 |
| commit | a9e5fdc21938b3d8733bdfc5931088319c921f78 (patch) | |
| tree | b4bc9eaae69953942219023cc1089cbdd9f20a48 /gdb/frame.c | |
| parent | 5cf72d3591cee5531e4e07df09f0b063f80bd9fa (diff) | |
| download | gdb-a9e5fdc21938b3d8733bdfc5931088319c921f78.zip gdb-a9e5fdc21938b3d8733bdfc5931088319c921f78.tar.gz gdb-a9e5fdc21938b3d8733bdfc5931088319c921f78.tar.bz2 | |
2003-06-08 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh (UNWIND_SP): Add.
* gdbarch.h, gdbarch.c: Re-generate.
* frame.c (frame_sp_unwind): New function.
(get_frame_sp): New function.
* frame.h (get_frame_sp, frame_sp_unwind): Declare.
* regcache.c (read_sp): Rewrite, try each of TARGET_READ_SP,
gdbarch_unwind_sp and SP_REGNUM when looking for the SP register
value.
* d10v-tdep.c (d10v_unwind_sp): Replace d10v_read_sp.
(d10v_gdbarch_init): Set unwind_sp instead of read_sp.
2003-06-08 Andrew Cagney <cagney@redhat.com>
* gdbint.texinfo (Target Architecture Definition): Document
"unwind_sp". Cross reference "unwind_sp" and TARGET_READ_SP.
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) { |