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* dwarf2-frame.c (dwarf2_frame_cache): Don't skip the return 

address column.
This commit is contained in:
Mark Kettenis 2003-12-22 20:32:51 +00:00
parent 4fd47f10ae
commit 79c4cb80ee
2 changed files with 12 additions and 16 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2003-12-22 Mark Kettenis <kettenis@gnu.org>
* dwarf2-frame.c (dwarf2_frame_cache): Don't skip the return
address column.
2003-12-21 Jim Blandy <jimb@redhat.com>
* breakpoint.c (bpstat_do_actions): To ensure that

23
gdb/dwarf2-frame.c
View File

@ -557,28 +557,19 @@ dwarf2_frame_cache (struct frame_info *next_frame, void **this_cache)
}
/* Go through the DWARF2 CFI generated table and save its register
location information in the cache. */
location information in the cache. Note that we don't skip the
return address column; it's perfectly all right for it to
correspond to a real register. If it doesn't correspond to a
real register, or if we shouldn't treat it as such,
DWARF2_REG_TO_REGNUM should be defined to return a number outside
the range [0, NUM_REGS). */
{
int column; /* CFI speak for "register number". */
for (column = 0; column < fs->regs.num_regs; column++)
{
int regnum;
/* Skip the return address column. */
if (column == fs->retaddr_column)
/* NOTE: cagney/2003-06-07: Is this right? What if
RETADDR_COLUMN corresponds to a real register (and,
worse, that isn't the PC_REGNUM)? I'm guessing that the
PC_REGNUM further down is trying to handle this. That
can't be right though; PC_REGNUM may not be valid (it can
be negative). I think, instead when RETADDR_COLUM isn't
a real register, it should map itself onto
frame_pc_unwind. */
continue;
/* Use the GDB register number as the destination index. */
regnum = DWARF2_REG_TO_REGNUM (column);
int regnum = DWARF2_REG_TO_REGNUM (column);
/* If there's no corresponding GDB register, ignore it. */
if (regnum < 0 || regnum >= num_regs)