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From 6c7c5c477ef9ccf2d2548cf2ac3cec9bd3c9c5b6 Mon Sep 17 00:00:00 2001
From: Max Filippov <jcmvbkbc@gmail.com>
Date: Tue, 2 Feb 2016 17:11:38 +0300
Subject: [PATCH] xtensa: fix signedness of gas relocations
Change 1058c7532d0b "Use signed data type for R_XTENSA_DIFF* relocation
offsets." changed signedness of BFD_RELOC_XTENSA_DIFF* relocations
substituted for BFD_RELOC_*. This made it impossible to encode arbitrary
8-, 16- and 32-bit values, which broke e.g. debug info encoding by .loc
directive. Revert this part and add test.
gas/
2016-02-03 Max Filippov <jcmvbkbc@gmail.com>
* config/tc-xtensa.c (md_apply_fix): Mark BFD_RELOC_XTENSA_DIFF*
substitutions for BFD_RELOC_* as unsigned.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
gas/config/tc-xtensa.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/gas/config/tc-xtensa.c
+++ b/gas/config/tc-xtensa.c
@@ -5962,15 +5962,15 @@
{
case BFD_RELOC_8:
fixP->fx_r_type = BFD_RELOC_XTENSA_DIFF8;
- fixP->fx_signed = 1;
+ fixP->fx_signed = 0;
break;
case BFD_RELOC_16:
fixP->fx_r_type = BFD_RELOC_XTENSA_DIFF16;
- fixP->fx_signed = 1;
+ fixP->fx_signed = 0;
break;
case BFD_RELOC_32:
fixP->fx_r_type = BFD_RELOC_XTENSA_DIFF32;
- fixP->fx_signed = 1;
+ fixP->fx_signed = 0;
break;
default:
break;
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