MIRRORS/poky
1
0
Fork 0
mirror of git://git.yoctoproject.org/poky.git synced 2025-07-19 21:09:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity

ltp: backport patch to fix compilation error for Skylake -march=x86-64-v3

Browse Source 
When the input compiler enables AVX, stack realignment requirements
causes gcc to fail to omit %rbp use, due to which the test fails to
clobber %rbp in inline asm.  Disable AVX to build the test on x86_64 so
that the test continues working.

(From OE-Core rev: bbd3e7886e2ec5ab3578d618b28d007a80d917aa)

Signed-off-by: Yogesh Tyagi <yogesh.tyagi@intel.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Yogesh Tyagi 2025-05-19 19:08:17 +08:00 committed by Richard Purdie
parent fa96265154
commit 94019980ea
2 changed files with 43 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
meta/recipes-extended/ltp/ltp/0001-cve-2015-3290-Disable-AVX-for-x86_64.patch Normal file
View File

@ -0,0 +1,42 @@
From 28d823a63ee29f5d72c2aba781a06a7e2651cadc Mon Sep 17 00:00:00 2001
From: Siddhesh Poyarekar <siddhesh@gotplt.org>
Date: Mon, 7 Apr 2025 06:24:47 -0400
Subject: [PATCH] cve-2015-3290: Disable AVX for x86_64
When the input compiler enables AVX, stack realignment requirements
causes gcc to fail to omit %rbp use, due to which the test fails to
clobber %rbp in inline asm. Disable AVX to build the test on x86_64 so
that the test continues working.
Link: https://lore.kernel.org/ltp/20250407102448.2605506-2-siddhesh@gotplt.org/
Upstream-Status: Backport [https://github.com/linux-test-project/ltp/commit/28d823a63ee29f5d72c2aba781a06a7e2651cadc]
Reviewed-by: Martin Doucha <mdoucha@suse.cz>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Siddhesh Poyarekar <siddhesh@gotplt.org>
---
testcases/cve/Makefile | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/testcases/cve/Makefile b/testcases/cve/Makefile
index 01b9b9ccb..98c38e908 100644
--- a/testcases/cve/Makefile
+++ b/testcases/cve/Makefile
@@ -22,6 +22,12 @@ ifneq (,$(filter $(HOST_CPU),x86 x86_64))
meltdown: CFLAGS += -msse2
endif
+# The test needs to clobber %rbp, which requires frame pointer omission. Also
+# for x86_64, disable AVX since that could sometimes require a stack
+# realignment, which gets in the way of frame pointer omission.
cve-2015-3290: CFLAGS += -pthread -fomit-frame-pointer
+ifeq ($(HOST_CPU),x86_64)
+cve-2015-3290: CFLAGS += -mno-avx
+endif
include $(top_srcdir)/include/mk/generic_leaf_target.mk
--
2.37.3

1
meta/recipes-extended/ltp/ltp_20250130.bb
View File

@ -30,6 +30,7 @@ SRC_URI = "git://github.com/linux-test-project/ltp.git;branch=master;protocol=ht
file://0001-Remove-OOM-tests-from-runtest-mm.patch \
file://0001-Add-__clear_cache-declaration-for-clang.patch \
file://0001-kernel-kvm-don-t-hardcode-objcopy.patch \
file://0001-cve-2015-3290-Disable-AVX-for-x86_64.patch \
"
S = "${WORKDIR}/git"