https://gcc.gnu.org/g:de04f593efe611d64cb50575332cef03d6eba561
commit r16-713-gde04f593efe611d64cb50575332cef03d6eba561
Author: Oleg Endo <olege...@gcc.gnu.org>
Date: Sat May 17 10:51:35 2025 -0600
[PATCH] libgcc SH: fix alignment for relaxation
From 6462f1e6a2565c5d4756036d9bc2f39dce9bd768 Mon Sep 17 00:00:00 2001
From: QBos07 <qu...@outlook.de>
Date: Sat, 10 May 2025 16:56:28 +0000
Subject: [PATCH] libgcc SH: fix alignment for relaxation
when relaxation is enabled we can not infer the alignment
from the position as that may change. This should not change
non-relaxed builds as its allready aligned there. This was
the missing piece to building an entire toolchain with -mrelax
Credit goes to Oleg Endo:
https://sourceware.org/bugzilla/show_bug.cgi?id=3298#c4
libgcc/
* config/sh/lib1funcs.S (ashiftrt_r4_32): Increase alignment.
(movemem): Force alignment of the mova intruction.
Diff:
---
libgcc/config/sh/lib1funcs.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/libgcc/config/sh/lib1funcs.S b/libgcc/config/sh/lib1funcs.S
index eda48066cdc1..11acfd5e3261 100644
--- a/libgcc/config/sh/lib1funcs.S
+++ b/libgcc/config/sh/lib1funcs.S
@@ -115,7 +115,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.
If not, see
HIDDEN_FUNC(GLOBAL(ashiftrt_r4_31))
HIDDEN_FUNC(GLOBAL(ashiftrt_r4_32))
- .align 1
+ .align 4
GLOBAL(ashiftrt_r4_32):
GLOBAL(ashiftrt_r4_31):
rotcl r4
@@ -764,6 +764,7 @@ LOCAL(movmem_loop): /* Reached with rts */
bt GLOBAL(movmemSI52)
! done all the large groups, do the remainder
! jump to movmem+
+ .balign 4
mova GLOBAL(movmemSI4)+4,r0
add r6,r0
jmp @r0
