On Fri, Sep 3, 2021 at 8:03 PM Hari Bathini <hbathini@xxxxxxxxxxxxx> wrote:
On systems where vmlinux file is not under /usr/lib/debug/lib/modules
directory, 'mod -s|-S' command may fail to find the module's object
file with the below error:
mod: cannot find or load object file for sd_mod module
Fix it by trying all possible module object file extentions while
searching for the object file under /usr/lib/debug/lib/modules
directory.
Signed-off-by: Naveen N. Rao <naveen.n.rao@xxxxxxxxxxxxx>
Signed-off-by: Hari Bathini <hbathini@xxxxxxxxxxxxx>
---
kernel.c | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/kernel.c b/kernel.c
index 36fdea2..b2c8a0c 100644
--- a/kernel.c
+++ b/kernel.c
@@ -4796,7 +4796,18 @@ module_objfile_search(char *modref, char *filename, char *tree)
sprintf(dir, "%s/%s", DEFAULT_REDHAT_DEBUG_LOCATION,
kt->utsname.release);
- retbuf = search_directory_tree(dir, file, 0);
+ if (!(retbuf = search_directory_tree(dir, file, 0))) {
+ switch (kt->flags & (KMOD_V1|KMOD_V2))
+ {
+ case KMOD_V2:
+ sprintf(file, "%s.ko", modref);
+ retbuf = search_directory_tree(dir, file, 0);
+ if (!retbuf) {
+ sprintf(file, "%s.ko.debug", modref);
+ retbuf = search_directory_tree(dir, file, 0);
+ }
+ }
+ }
if (!retbuf && (env = getenv("CRASH_MODULE_PATH"))) {
sprintf(dir, "%s", env);
Acked-by: Lianbo Jiang <lijiang@xxxxxxxxxx>
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