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https://github.com/dynup/kpatch
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eb4f5833e0
The kpatch-build :: find_parent_obj() function's "deep find" may
failed to find objects if they are not located in current directory:
ERROR: invalid ancestor xxx/xxx.o for xxx/xxx.o.
This is reproducable when building an out-of-tree module of the
following structure:
wwheart@linux41:~/helloworld 0 > tree -a
.
├── buffer_overflow1.ko
├── .buffer_overflow1.ko.cmd
├── buffer_overflow1.mod.c
├── buffer_overflow1.mod.o
├── .buffer_overflow1.mod.o.cmd
├── buffer_overflow1.o
├── .buffer_overflow1.o.cmd
├── hello.c
├── hello.o
├── .hello.o.cmd
├── Makefile
├── modules.order
├── Module.symvers
├── test.patch
├── .tmp_versions
│ └── buffer_overflow1.mod
└── xxx
├── xxx.c
├── xxx.h
├── xxx.o
└── .xxx.o.cmd
wwheart@linux41:~/helloworld 0 > cat test.patch
diff --git a/xxx/xxx.c b/xxx/xxx.c
index aab3c67..d81ad00 100644
--- a/xxx/xxx.c
+++ b/xxx/xxx.c
@@ -1,6 +1,7 @@
#include <linux/kernel.h>
void czf_test(void)
{
+ printk("livepatch test\n");
printk("xxx\n");
}
wwheart@linux41:~/helloworld 0 > cat Makefile
obj-m += buffer_overflow1.o
buffer_overflow1-y += hello.o xxx/xxx.o
Modify the deep find to traverse sub-directories in order to search
the entire tree instead of only the current directory.
Fixes:
|
||
|---|---|---|
| .. | ||
| gcc-plugins | ||
| insn | ||
| create-diff-object.c | ||
| create-klp-module.c | ||
| create-kpatch-module.c | ||
| kpatch-build | ||
| kpatch-elf.c | ||
| kpatch-elf.h | ||
| kpatch-gcc | ||
| kpatch-intermediate.h | ||
| kpatch.h | ||
| list.h | ||
| log.h | ||
| lookup.c | ||
| lookup.h | ||
| Makefile | ||