SHA256
3
0
forked from pool/zstd

Accepting request 1158640 from Archiving

OBS-URL: https://build.opensuse.org/request/show/1158640
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/zstd?expand=0&rev=37
This commit is contained in:
Dominique Leuenberger 2024-03-20 20:09:32 +00:00 committed by Git OBS Bridge
commit f0d474414f
3 changed files with 77 additions and 1 deletions

67
zstd-pr-3961.patch Normal file
View File

@ -0,0 +1,67 @@
From a88781954a875c4f00883eba6a8c5d172c4f5c17 Mon Sep 17 00:00:00 2001
From: Nick Terrell <terrelln@fb.com>
Date: Wed, 13 Mar 2024 09:58:34 -0700
Subject: [PATCH] [asm][aarch64] Mark that BTI and PAC are supported
Mark that `huf_decompress_amd64.S` supports BTI and PAC, which it trivially does because it is empty for aarch64.
The issue only requested BTI markings, but it also makes sense to mark PAC, which is the only other feature.
Also run add a test for this mode to the ARM64 QEMU test. Before this PR it warns on `huf_decompress_amd64.S`, after it doesn't.
Fixes Issue #3841.
---
.github/workflows/dev-short-tests.yml | 1 +
lib/decompress/huf_decompress_amd64.S | 23 ++++++++++++++++++++++-
2 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/.github/workflows/dev-short-tests.yml b/.github/workflows/dev-short-tests.yml
index b2aaff89cf..5324b38d9a 100644
--- a/.github/workflows/dev-short-tests.yml
+++ b/.github/workflows/dev-short-tests.yml
@@ -409,6 +409,7 @@ jobs:
- name: ARM64
if: ${{ matrix.name == 'ARM64' }}
run: |
+ LDFLAGS="-static -z force-bti" MOREFLAGS="-mbranch-protection=standard" CC=$XCC QEMU_SYS=$XEMU make clean check
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: PPC
if: ${{ matrix.name == 'PPC' }}
diff --git a/lib/decompress/huf_decompress_amd64.S b/lib/decompress/huf_decompress_amd64.S
index 3b96b44612..78da291ee3 100644
--- a/lib/decompress/huf_decompress_amd64.S
+++ b/lib/decompress/huf_decompress_amd64.S
@@ -10,11 +10,32 @@
#include "../common/portability_macros.h"
+#if defined(__ELF__) && defined(__GNUC__)
/* Stack marking
* ref: https://wiki.gentoo.org/wiki/Hardened/GNU_stack_quickstart
*/
-#if defined(__ELF__) && defined(__GNUC__)
.section .note.GNU-stack,"",%progbits
+
+#if defined(__aarch64__)
+/* Mark that this assembly supports BTI & PAC, because it is empty for aarch64.
+ * See: https://github.com/facebook/zstd/issues/3841
+ * See: https://gcc.godbolt.org/z/sqr5T4ffK
+ * See: https://lore.kernel.org/linux-arm-kernel/20200429211641.9279-8-broonie@kernel.org/
+ * See: https://reviews.llvm.org/D62609
+ */
+.pushsection .note.gnu.property, "a"
+.p2align 3
+.long 4 /* size of the name - "GNU\0" */
+.long 0x10 /* size of descriptor */
+.long 0x5 /* NT_GNU_PROPERTY_TYPE_0 */
+.asciz "GNU"
+.long 0xc0000000 /* pr_type - GNU_PROPERTY_AARCH64_FEATURE_1_AND */
+.long 4 /* pr_datasz - 4 bytes */
+.long 3 /* pr_data - GNU_PROPERTY_AARCH64_FEATURE_1_BTI | GNU_PROPERTY_AARCH64_FEATURE_1_PAC */
+.p2align 3 /* pr_padding - bring everything to 8 byte alignment */
+.popsection
+#endif
+
#endif
#if ZSTD_ENABLE_ASM_X86_64_BMI2

View File

@ -1,3 +1,10 @@
-------------------------------------------------------------------
Thu Mar 14 07:13:30 UTC 2024 - Guillaume GARDET <guillaume.gardet@opensuse.org>
- Backport PAC/BTI fix for aarch64
https://github.com/facebook/zstd/pull/3961 :
* zstd-pr-3961.patch
-------------------------------------------------------------------
Fri Dec 29 13:21:02 UTC 2023 - ecsos <ecsos@opensuse.org>

View File

@ -1,7 +1,7 @@
#
# spec file for package zstd
#
# Copyright (c) 2023 SUSE LLC
# Copyright (c) 2024 SUSE LLC
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
@ -34,6 +34,8 @@ Source1: https://github.com/facebook/zstd/releases/download/v%{version}/%
Source2: zstd.keyring
Source99: baselibs.conf
Patch1: pzstd.1.patch
# PATCH-FIX-UPSTREAM - https://github.com/facebook/zstd/pull/3961
Patch2: zstd-pr-3961.patch
BuildRequires: gcc
# C++ is needed for pzstd only
BuildRequires: gcc-c++