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toolchain: gcc: Backport patch to fix mips16 linking

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Backport patch from upstream GCC 14 branch which fixes linking with
MIPS16 on the pistachio target.

This fixes the following link problem:
```
/builder/shared-workdir/build/staging_dir/toolchain-mipsel_24kc+24kf_gcc-14.2.0_musl/lib/gcc/mipsel-openwrt-linux-musl/14.2.0/../../../../mipsel-openwrt-linux-musl/bin/ld.bfd: ./liblua.so: undefined reference to `__mips16_ledf2'
/builder/shared-workdir/build/staging_dir/toolchain-mipsel_24kc+24kf_gcc-14.2.0_musl/lib/gcc/mipsel-openwrt-linux-musl/14.2.0/../../../../mipsel-openwrt-linux-musl/bin/ld.bfd: ./liblua.so: undefined reference to `__mips16_call_stub_df_2'
/builder/shared-workdir/build/staging_dir/toolchain-mipsel_24kc+24kf_gcc-14.2.0_musl/lib/gcc/mipsel-openwrt-linux-musl/14.2.0/../../../../mipsel-openwrt-linux-musl/bin/ld.bfd: ./liblua.so: undefined reference to `__mips16_muldf3'
```

Link: https://github.com/openwrt/openwrt/pull/18688
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Hauke Mehrtens 2025-05-03 00:38:31 +02:00
parent e184be34ab
commit 0744d77779
1 changed files with 34 additions and 0 deletions
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34
toolchain/gcc/patches-14.x/020-MIPS-Include-missing-mips16.S-in-libgcc-lib1funcs.S.patch Normal file
View file

@ -0,0 +1,34 @@
From 75892d97979f397a66730b97e8279941169e0316 Mon Sep 17 00:00:00 2001
From: YunQiang Su <syq@gcc.gnu.org>
Date: Fri, 23 Aug 2024 23:46:16 +0800
Subject: MIPS: Include missing mips16.S in libgcc/lib1funcs.S
mips16.S was missing since
commit 29b74545531f6afbee9fc38c267524326dbfbedf
Date: Thu Jun 1 10:14:24 2023 +0800
MIPS: Add speculation_barrier support
Without mips16.S included, some symbols will miss for mips16, and
so some software will fail to build.
libgcc/ChangeLog:
* config/mips/lib1funcs.S: Includes mips16.S.
(cherry picked from commit 9522fc8bb7812f2ad50eb038e0938bfd958e730f)
---
libgcc/config/mips/lib1funcs.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/libgcc/config/mips/lib1funcs.S
+++ b/libgcc/config/mips/lib1funcs.S
@@ -19,7 +19,7 @@ a copy of the GCC Runtime Library Except
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
-//#include "mips16.S"
+#include "mips16.S"
#ifdef L_speculation_barrier