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* mips-tdep.c (mips_init_extra_frame_info): Initialize SP_REGNUM's

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saved regs value.
	(read_next_frame_reg): Call FRAME_INIT_SAVED_REGS instead of
	mips_find_saved_regs().
	(mips_pop_frame): Likewise.
This commit is contained in:
Kevin Buettner 2002-08-09 20:30:20 +00:00
parent fbcdb4a3f0
commit ffabd70d00
2 changed files with 26 additions and 3 deletions
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8
gdb/ChangeLog
View File

@ -1,3 +1,11 @@
2002-08-09 Kevin Buettner <kevinb@redhat.com>
* mips-tdep.c (mips_init_extra_frame_info): Initialize SP_REGNUM's
saved regs value.
(read_next_frame_reg): Call FRAME_INIT_SAVED_REGS instead of
mips_find_saved_regs().
(mips_pop_frame): Likewise.
2002-08-09 Kevin Buettner <kevinb@redhat.com>
* blockframe.c (frame_saved_regs_register_unwind): Revise

21
gdb/mips-tdep.c
View File

@ -1256,7 +1256,16 @@ mips_next_pc (CORE_ADDR pc)
}
/* Guaranteed to set fci->saved_regs to some values (it never leaves it
NULL). */
NULL).
Note: kevinb/2002-08-09: The only caller of this function is (and
should remain) mips_frame_init_saved_regs(). In fact,
aside from calling mips_find_saved_regs(), mips_frame_init_saved_regs()
does nothing more than set frame->saved_regs[SP_REGNUM]. These two
functions should really be combined and now that there is only one
caller, it should be straightforward. (Watch out for multiple returns
though.)
*/
static void
mips_find_saved_regs (struct frame_info *fci)
@ -1465,7 +1474,7 @@ read_next_frame_reg (struct frame_info *fi, int regno)
else
{
if (fi->saved_regs == NULL)
mips_find_saved_regs (fi);
FRAME_INIT_SAVED_REGS (fi);
if (fi->saved_regs[regno])
return read_memory_integer (ADDR_BITS_REMOVE (fi->saved_regs[regno]), MIPS_SAVED_REGSIZE);
}
@ -2342,6 +2351,12 @@ mips_init_extra_frame_info (int fromleaf, struct frame_info *fci)
memcpy (fci->saved_regs, temp_saved_regs, SIZEOF_FRAME_SAVED_REGS);
fci->saved_regs[PC_REGNUM]
= fci->saved_regs[RA_REGNUM];
/* Set value of previous frame's stack pointer. Remember that
saved_regs[SP_REGNUM] is special in that it contains the
value of the stack pointer register. The other saved_regs
values are addresses (in the inferior) at which a given
register's value may be found. */
fci->saved_regs[SP_REGNUM] = fci->frame;
}
}
@ -2890,7 +2905,7 @@ mips_pop_frame (void)
write_register (PC_REGNUM, FRAME_SAVED_PC (frame));
if (frame->saved_regs == NULL)
mips_find_saved_regs (frame);
FRAME_INIT_SAVED_REGS (frame);
for (regnum = 0; regnum < NUM_REGS; regnum++)
{
if (regnum != SP_REGNUM && regnum != PC_REGNUM