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optimization for out-of-tree modules

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Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
This commit is contained in:
Zhipeng Xie 2020-11-13 04:00:24 -05:00
parent fcbd86e188
commit a77dc2fb14
2 changed files with 53 additions and 2 deletions
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44
0024-optimize-for-out-of-tree-module.patch Normal file
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@ -0,0 +1,44 @@
From aef88b0908ee9d36131c63493c02359a04d1304c Mon Sep 17 00:00:00 2001
From: Zhipeng Xie <xiezhipeng1@huawei.com>
Date: Fri, 13 Nov 2020 03:05:22 -0500
Subject: [PATCH] optimize for out of tree module
some out-of-tree modules's Module.symvers not in SRCDIR
some out-of-tree modules's obj has relative path like /xxx/./xxx.o
Signed-off-by: Zhipeng Xie <xiezhipeng1@huawei.com>
---
kpatch-build/kpatch-build | 1 +
kpatch-build/kpatch-gcc | 4 +++-
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/kpatch-build/kpatch-build b/kpatch-build/kpatch-build
index 523d5df..6238bc8 100755
--- a/kpatch-build/kpatch-build
+++ b/kpatch-build/kpatch-build
@@ -1035,6 +1035,7 @@ for i in $FILES; do
BUILDDIR="/lib/modules/$ARCHVERSION/build/"
SYMVERS_FILE="$TEMPDIR/Module.symvers"
[[ -e $SRCDIR/Module.symvers ]] && cp "$SRCDIR/Module.symvers" "$SYMVERS_FILE"
+ [[ -e $USERMODBUILDDIR/Module.symvers ]] && cp "$USERMODBUILDDIR/Module.symvers" $SYMVERS_FILE
awk '{ print $1 "\t" $2 "\t" $3 "\t" $4}' "${BUILDDIR}/Module.symvers" >> "$SYMVERS_FILE"
fi
fi
diff --git a/kpatch-build/kpatch-gcc b/kpatch-build/kpatch-gcc
index 6ad6ebc..2b2490e 100755
--- a/kpatch-build/kpatch-gcc
+++ b/kpatch-build/kpatch-gcc
@@ -25,7 +25,9 @@ if [[ "$TOOLCHAINCMD" =~ "${ARCH_COMPILE}gcc" ||
[[ "$obj" = */.tmp_*.o ]] && obj="${obj/.tmp_/}"
relobj=${obj//$KPATCH_GCC_SRCDIR\//}
- case "$relobj" in
+ tmpobj=$(readlink -f $obj)
+ relobj2=${tmpobj//$KPATCH_GCC_SRCDIR\//}
+ case "$relobj2" in
*.mod.o|\
*built-in.o|\
*built-in.a|\
--
2.18.1

11
kpatch.spec
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@ -1,7 +1,7 @@
Name: kpatch
Epoch: 1
Version: 0.9.1
Release: 6
Release: 7
Summary: A Linux dynamic kernel patching infrastructure
License: GPLv2
@ -35,6 +35,7 @@ Patch0020:0020-kpatch-build-add-compile-flag-fno-reorder-functions.patch
Patch0021:0021-kpatch-build-don-t-copy-.config-for-out-of-tree-modu.patch
Patch0022:0022-support-force-enable-disable-for-x86.patch
Patch0023:0023-create-diff-object-fix-duplicate-symbols-for-vmlinux.patch
Patch0024:0024-optimize-for-out-of-tree-module.patch
BuildRequires: gcc elfutils-libelf-devel uname-build-checks kernel-devel git
Requires: bc
@ -94,7 +95,13 @@ popd
%{_mandir}/man1/*.1.gz
%changelog
* Thu Nov 22 2020 Zhipeng Xie<xiezhipeng1@huawei.com> -1:0.9.1-6
* Tue Nov 17 2020 Zhipeng Xie<xiezhipeng1@huawei.com> -1:0.9.1-7
- Type:enhancement
- ID:NA
- SUG:NA
- DESC:optimize for out of tree module
* Thu Nov 12 2020 Zhipeng Xie<xiezhipeng1@huawei.com> -1:0.9.1-6
- Type:enhancement
- ID:NA
- SUG:NA