espressif/binutils-gdb
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* sh-tdep.c (sh_skip_prologue): Also recognize fmov insns.

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(sh_frame_find_saved_regs): Recognize fmov insns and adjust
	stack push count accordingly.
	* sh-tdep.c (IS_FMOV, FPSCR_SZ): New defines
This commit is contained in:
Fred Fish
1997-06-21 03:50:11 +00:00
parent 73bb488673
commit 4a9d4495eb
2 changed files with 36 additions and 3 deletions

9
gdb/ChangeLog

@ -1,3 +1,12 @@
start-sanitize-sh4
Fri Jun 20 17:58:34 1997 Fred Fish <fnf@cygnus.com>
* sh-tdep.c (sh_skip_prologue): Also recognize fmov insns.
(sh_frame_find_saved_regs): Recognize fmov insns and adjust
stack push count accordingly.
* sh-tdep.c (IS_FMOV, FPSCR_SZ): New defines
end-sanitize-sh4
Thu Jun 19 08:18:48 1997 Mark Alexander <marka@cygnus.com> Thu Jun 19 08:18:48 1997 Mark Alexander <marka@cygnus.com>
* utils.c (floatformat_from_doublest): Improve test for infinity. * utils.c (floatformat_from_doublest): Improve test for infinity.

30
gdb/sh-tdep.c

@ -113,6 +113,10 @@ struct {
#define IS_MOV_R3(x) (((x) & 0xff00) == 0x1a00) #define IS_MOV_R3(x) (((x) & 0xff00) == 0x1a00)
#define IS_SHLL_R3(x) ((x) == 0x4300) #define IS_SHLL_R3(x) ((x) == 0x4300)
#define IS_ADD_R3SP(x) ((x) == 0x3f3c) #define IS_ADD_R3SP(x) ((x) == 0x3f3c)
/* start-sanitize-sh4 */
#define IS_FMOV(x) (((x) & 0xf00f) == 0xf00b)
#define FPSCR_SZ (1 << 20)
/* end-sanitize-sh4 */
/* Skip any prologue before the guts of a function */ /* Skip any prologue before the guts of a function */
@ -124,6 +128,9 @@ sh_skip_prologue (start_pc)
w = read_memory_integer (start_pc, 2); w = read_memory_integer (start_pc, 2);
while (IS_STS (w) while (IS_STS (w)
/* start-sanitize-sh4 */
|| IS_FMOV (w)
/* end-sanitize-sh4 */
|| IS_PUSH (w) || IS_PUSH (w)
|| IS_MOV_SP_FP (w) || IS_MOV_SP_FP (w)
|| IS_MOV_R3 (w) || IS_MOV_R3 (w)
@ -240,9 +247,11 @@ sh_frame_find_saved_regs (fi, fsr)
depth = 0; depth = 0;
/* Loop around examining the prologue insns, but give up /* Loop around examining the prologue insns until we find something
after 15 of them, since we're getting silly then */ that does not appear to be part of the prologue. But give up
while (pc < opc + 15 * 2) after 20 of them, since we're getting silly then. */
while (pc < opc + 20 * 2)
{ {
/* See where the registers will be saved to */ /* See where the registers will be saved to */
if (IS_PUSH (insn)) if (IS_PUSH (insn))
@ -286,6 +295,21 @@ sh_frame_find_saved_regs (fi, fsr)
depth -= ((insn & 0xff) ^ 0x80) - 0x80; depth -= ((insn & 0xff) ^ 0x80) - 0x80;
insn = read_memory_integer (pc, 2); insn = read_memory_integer (pc, 2);
} }
/* start-sanitize-sh4 */
else if (IS_FMOV (insn))
{
pc += 2;
insn = read_memory_integer (pc, 2);
if (read_register (FPSCR_REGNUM) & FPSCR_SZ)
{
depth += 8;
}
else
{
depth += 4;
}
}
/* end-sanitize-sh4 */
else else
break; break;
} }