OpenE2K/binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

* s390-tdep.c (s390_get_frame_info): Recognize spills of reg

Browse Source 
arguments into their stack slots.
This commit is contained in:
Jim Blandy 2001-12-05 00:20:37 +00:00
parent 7286245e1f
commit 7666f43c32
2 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
gdb/ChangeLog
View File

@ -1,5 +1,8 @@
2001-12-04 Jim Blandy <jimb@redhat.com> 2001-12-04 Jim Blandy <jimb@redhat.com>
* s390-tdep.c (s390_get_frame_info): Recognize spills of reg
arguments into their stack slots.
* s390-tdep.c (s390_get_frame_info): More doc fixes. * s390-tdep.c (s390_get_frame_info): More doc fixes.
* s390-tdep.c (s390_get_frame_info): Doc fixes. * s390-tdep.c (s390_get_frame_info): Doc fixes.

17
gdb/s390-tdep.c
View File

@ -405,6 +405,23 @@ s390_get_frame_info (CORE_ADDR pc, struct frame_extra_info *fextra_info,
continue; continue;
} }
/* Check for an fp-relative STG or ST. This is probably
spilling an argument from a register out into a stack slot.
This could be a user instruction, but if we haven't included
any other suspicious instructions in the prologue, this
could only be an initializing store, which isn't too bad to
skip. The consequences of not including arg-to-stack spills
are more serious, though --- you don't see the proper values
of the arguments. */
if ((save_link_state == 3 || save_link_state == 4)
&& instr[0] == 0x50 /* st %rA, D(%rX,%rB) */
&& (instr[1] & 0xf) == 0 /* %rX is zero, no index reg */
&& ((instr[2] >> 4) & 0xf) == frame_pointer_regidx)
{
valid_prologue = 1;
continue;
}
/* check for STD */ /* check for STD */
if (instr[0] == 0x60 && (instr[2] >> 4) == 0xf) if (instr[0] == 0x60 && (instr[2] >> 4) == 0xf)
{ {