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kpatch-gcc: fix for .tmp_* objects on RHEL 7

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On RHEL 7 I see the following error when trying to patch meminfo.o:

    cp: cannot stat ‘/home/user/.kpatch/obj/fs/proc/.tmp_meminfo.o’: No such file or directory

It turns out that on RHEL 7, a given object foo.o is compiled as
.tmp_foo.o before then being linked as foo.o.  I have no idea why.  The
fix is to record .tmp_foo.o as foo.o in the changed_objs file.
This commit is contained in:
Josh Poimboeuf 2014-08-12 20:39:24 -05:00
parent 0efd8b0f2b
commit 7b4ee86197
1 changed files with 8 additions and 5 deletions
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13
kpatch-build/kpatch-gcc
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@ -13,7 +13,9 @@ declare -a args=($@)
while [ "$#" -gt 0 ]; do
if [ "$1" = "-o" ]; then
case "$2" in
obj=$2
[[ $2 = */.tmp_*.o ]] && obj=${2/.tmp_/}
case "$obj" in
*.mod.o|\
*built-in.o|\
vmlinux.o|\
@ -27,12 +29,13 @@ while [ "$#" -gt 0 ]; do
arch/x86/boot/compressed/piggy.o|\
kernel/system_certificates.o|\
.*.o)
break;
break
;;
*.o)
mkdir -p "$TEMPDIR/orig/$(dirname $2)"
cp -f "$2" "$TEMPDIR/orig/$2"
echo "$2" >> "$TEMPDIR/changed_objs"
mkdir -p "$TEMPDIR/orig/$(dirname $obj)"
cp -f "$obj" "$TEMPDIR/orig/$obj"
echo "$obj" >> "$TEMPDIR/changed_objs"
break
;;
*)
break