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Set uses_fp for frames with a valid FP register explicitly. 

Since CORE_ADDR is unsigned, the saved FP register is always greater than
or equal to zero.  Replace the comparison by explicitly setting uses_fp to
1 for frames with a valid FP register.

gdb/ChangeLog:

	* sh64-tdep.c (sh64_analyze_prologue): Set "uses_fp" when setting
	the MEDIA_FP_REGNUM register.
This commit is contained in:
John Baldwin 2016-06-11 07:43:46 -07:00
parent d66ff635be
commit 9ca107148e
2 changed files with 23 additions and 11 deletions
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5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2016-07-06 John Baldwin <jhb@FreeBSD.org>
* sh64-tdep.c (sh64_analyze_prologue): Set "uses_fp" when setting
the MEDIA_FP_REGNUM register.
2016-07-06 John Baldwin <jhb@FreeBSD.org>
* score-tdep.c (score7_malloc_and_get_memblock): Remove check for

29
gdb/sh64-tdep.c
View File

@ -901,8 +901,11 @@ sh64_analyze_prologue (struct gdbarch *gdbarch,
}
else if (IS_MOV_R14 (insn))
cache->saved_regs[MEDIA_FP_REGNUM] =
cache->sp_offset - ((((insn & 0xf) ^ 0x8) - 0x8) << 2);
{
cache->saved_regs[MEDIA_FP_REGNUM] =
cache->sp_offset - ((((insn & 0xf) ^ 0x8) - 0x8) << 2);
cache->uses_fp = 1;
}
else if (IS_MOV_R0 (insn))
{
@ -931,6 +934,7 @@ sh64_analyze_prologue (struct gdbarch *gdbarch,
/* Store R14 at r0_val-4 from SP. Decrement r0 by 4. */
cache->saved_regs[MEDIA_FP_REGNUM] = cache->sp_offset
- (r0_val - 4);
cache->uses_fp = 1;
r0_val -= 4;
}
@ -957,22 +961,25 @@ sh64_analyze_prologue (struct gdbarch *gdbarch,
9) << 2);
else if (IS_STQ_R14_R15 (insn))
cache->saved_regs[MEDIA_FP_REGNUM]
= cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
9) << 3);
{
cache->saved_regs[MEDIA_FP_REGNUM]
= cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
9) << 3);
cache->uses_fp = 1;
}
else if (IS_STL_R14_R15 (insn))
cache->saved_regs[MEDIA_FP_REGNUM]
= cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
9) << 2);
{
cache->saved_regs[MEDIA_FP_REGNUM]
= cache->sp_offset - (sign_extend ((insn & 0xffc00) >> 10,
9) << 2);
cache->uses_fp = 1;
}
else if (IS_MOV_SP_FP_MEDIA (insn))
break;
}
}
if (cache->saved_regs[MEDIA_FP_REGNUM] >= 0)
cache->uses_fp = 1;
}
static CORE_ADDR