[PATCH] libgcc SH: fix alignment for relaxation

From 6462f1e6a2565c5d4756036d9bc2f39dce9bd768 Mon Sep 17 00:00:00 2001
From: QBos07 <qubos@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 --git a/libgcc/config/sh/lib1funcs.S b/libgcc/config/sh/lib1funcs.S
index eda48066cdc13e3d97347251e76519bb85a96d7d..11acfd5e3261a41a087ac634bdf264bac5c4453a 100644 (file)
--- 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