69 lines
2.5 KiB
Diff
69 lines
2.5 KiB
Diff
From 47494a014c00dfa3832441171255018be62ac756 Mon Sep 17 00:00:00 2001
|
|
From: Jinyang He <hejinyang@loongson.cn>
|
|
Date: Mon, 22 Apr 2024 17:49:50 +0800
|
|
Subject: [PATCH 083/123] LoongArch: gas: Simplify relocations in sections
|
|
without code flag
|
|
|
|
Gas should not emit ADD/SUB relocation pairs for label differences
|
|
if they are in the same section without code flag even relax enabled.
|
|
Because the real value is not be affected by relaxation and it can be
|
|
compute out in assembly stage. Thus, correct the `TC_FORCE_RELOCATION
|
|
_SUB_SAME` and the label differences in same section without code
|
|
flag can be resolved in fixup_segment().
|
|
---
|
|
gas/config/tc-loongarch.h | 4 +---
|
|
gas/testsuite/gas/loongarch/relax_debug_line.d | 12 ++++++++++++
|
|
gas/testsuite/gas/loongarch/relax_debug_line.s | 6 ++++++
|
|
3 files changed, 19 insertions(+), 3 deletions(-)
|
|
create mode 100644 gas/testsuite/gas/loongarch/relax_debug_line.d
|
|
create mode 100644 gas/testsuite/gas/loongarch/relax_debug_line.s
|
|
|
|
diff --git a/gas/config/tc-loongarch.h b/gas/config/tc-loongarch.h
|
|
index 194ee107..0b5cdfe6 100644
|
|
--- a/gas/config/tc-loongarch.h
|
|
+++ b/gas/config/tc-loongarch.h
|
|
@@ -91,9 +91,7 @@ extern bool loongarch_frag_align_code (int, int);
|
|
#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
|
|
(LARCH_opts.relax ? \
|
|
(GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEC) \
|
|
- || ((SEC)->flags & SEC_CODE) != 0 \
|
|
- || ((SEC)->flags & SEC_DEBUGGING) != 0 \
|
|
- || TC_FORCE_RELOCATION (FIX)) \
|
|
+ || ((SEC)->flags & SEC_CODE) != 0) \
|
|
: (GENERIC_FORCE_RELOCATION_SUB_SAME (FIX, SEC))) \
|
|
|
|
#define TC_LINKRELAX_FIXUP(seg) ((seg->flags & SEC_CODE) \
|
|
diff --git a/gas/testsuite/gas/loongarch/relax_debug_line.d b/gas/testsuite/gas/loongarch/relax_debug_line.d
|
|
new file mode 100644
|
|
index 00000000..c17813c2
|
|
--- /dev/null
|
|
+++ b/gas/testsuite/gas/loongarch/relax_debug_line.d
|
|
@@ -0,0 +1,12 @@
|
|
+#as: --gdwarf-5
|
|
+#readelf: -r --wide
|
|
+#skip: loongarch32-*-*
|
|
+
|
|
+Relocation section '\.rela\.debug_line' at offset .* contains 5 entries:
|
|
+#...
|
|
+0+22.*R_LARCH_32[ \t]+[0-9]+.*
|
|
+0+2c.*R_LARCH_32[ \t]+[0-9]+.*
|
|
+0+36.*R_LARCH_64[ \t]+[0-9]+.*
|
|
+0+42.*R_LARCH_ADD16[ \t]+[0-9]+.*
|
|
+0+42.*R_LARCH_SUB16[ \t]+[0-9]+.*
|
|
+#pass
|
|
diff --git a/gas/testsuite/gas/loongarch/relax_debug_line.s b/gas/testsuite/gas/loongarch/relax_debug_line.s
|
|
new file mode 100644
|
|
index 00000000..d2852bb9
|
|
--- /dev/null
|
|
+++ b/gas/testsuite/gas/loongarch/relax_debug_line.s
|
|
@@ -0,0 +1,6 @@
|
|
+ .file 0 "test"
|
|
+ .text
|
|
+ .loc 0 10 0
|
|
+ nop
|
|
+
|
|
+.section .debug_line, "", @progbits
|
|
--
|
|
2.33.0
|
|
|