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linux-unwind.h: Use the proper dwarf to hard reg mapping for FPRs when...

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2013-07-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

	* config/s390/linux-unwind.h: Use the proper dwarf to hard reg
	mapping for FPRs when creating the fallback framestate.

From-SVN: r201156
This commit is contained in:
Andreas Krebbel 2013-07-23 07:20:52 +00:00 • committed by Andreas Krebbel
parent 5f9ae7f2d6
commit 902a3fafbe
2 changed files with 8 additions and 1 deletions
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5
libgcc/ChangeLog
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@ -1,3 +1,8 @@
2013-07-23 Andreas Krebbel <Andreas.Krebbel@de.ibm.com>
* config/s390/linux-unwind.h: Use the proper dwarf to hard reg
mapping for FPRs when creating the fallback framestate.
2013-07-19 Georg-Johann Lay <avr@gjlay.de>
PR target/57516

4
libgcc/config/s390/linux-unwind.h
View file

@ -31,6 +31,8 @@ static _Unwind_Reason_Code
s390_fallback_frame_state (struct _Unwind_Context *context,
_Unwind_FrameState *fs)
{
static const unsigned char dwarf_to_fpr_map[16] =
{ 0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15 };
unsigned char *pc = context->ra;
long new_cfa;
int i;
@ -112,7 +114,7 @@ s390_fallback_frame_state (struct _Unwind_Context *context,
{
fs->regs.reg[16+i].how = REG_SAVED_OFFSET;
fs->regs.reg[16+i].loc.offset =
(long)&regs->fprs[i] - new_cfa;
(long)&regs->fprs[dwarf_to_fpr_map[i]] - new_cfa;
}
/* Load return addr from PSW into dummy register 32. */