kumquat-buildroot/package/binutils/2.35.2/0008-or1k-fix-pc-relative-relocation-against-dynamic-on-P.patch
Giulio Benetti e3b3432fc0 package/binutils: fix linker assert on OpenRisc
When building openal we were seeing the assert failure:

/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourcePausev
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourceStopv
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourceRewindv
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourcePlayv
collect2: error: ld returned 1 exit status

So add patches to fix this binutils assert link failure on OpenRisc.
It's been suggested upstream and it's pending here:
https://sourceware.org/pipermail/binutils/2021-July/117334.html

Fixes:
http://autobuild.buildroot.net/results/c96/c96f2600f227d6c76114b9fbc41f74a57e40415a/

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2021-07-16 22:50:57 +02:00

60 lines
2.6 KiB
Diff

From 9af93e143a7fbdb75aa1ed37277f9250eb111628 Mon Sep 17 00:00:00 2001
From: Giulio Benetti <giulio.benetti@benettiengineering.com>
Date: Sat, 10 Jul 2021 17:57:34 +0200
Subject: [PATCH] or1k: fix pc-relative relocation against dynamic on PC
relative 26 bit relocation
When building openal we were seeing the assert failure:
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourcePausev
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourceStopv
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourceRewindv
/home/buildroot/autobuild/run/instance-0/output-1/host/opt/ext-toolchain/bin/../lib/gcc/or1k-buildroot-linux-uclibc/9.3.0/../../../../or1k-buildroot-linux-uclibc/bin/ld: CMakeFiles/OpenAL.dir/al/source.cpp.o:
pc-relative relocation against dynamic symbol alSourcePlayv
collect2: error: ld returned 1 exit status
This happens because in R_OR1K_INSN_REL_26 case we can't reference local
symbol as previously done but we need to make sure that calls to actual
symbol always call the version of current object.
bfd/Changelog:
* elf32-or1k.c (or1k_elf_relocate_section): use a separate entry
in switch case R_OR1K_INSN_REL_26 where we need to check for
!SYMBOL_CALLS_LOCAL() instead of !SYMBOL_REFERENCES_LOCAL().
Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
---
bfd/elf32-or1k.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/bfd/elf32-or1k.c b/bfd/elf32-or1k.c
index 4ae7f324d33..4f9092539f5 100644
--- a/bfd/elf32-or1k.c
+++ b/bfd/elf32-or1k.c
@@ -1543,6 +1543,18 @@ or1k_elf_relocate_section (bfd *output_bfd,
break;
case R_OR1K_INSN_REL_26:
+ /* For a non-shared link, these will reference plt or call the
+ version of actual object. */
+ if (bfd_link_pic (info) && !SYMBOL_CALLS_LOCAL (info, h))
+ {
+ _bfd_error_handler
+ (_("%pB: pc-relative relocation against dynamic symbol %s"),
+ input_bfd, name);
+ ret_val = FALSE;
+ bfd_set_error (bfd_error_bad_value);
+ }
+ break;
+
case R_OR1K_PCREL_PG21:
case R_OR1K_LO13:
case R_OR1K_SLO13:
--
2.25.1