File crash-mod-fix-module-object-file-lookup.patch of Package crash

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File crash-mod-fix-module-object-file-lookup.patch of Package crash

From cf0c8d10e1870d89b39f40382634db51aa8fcf2c Mon Sep 17 00:00:00 2001
From: Hari Bathini <hbathini@linux.ibm.com>
Date: Fri, 3 Sep 2021 17:33:42 +0530
Subject: [PATCH] mod: fix module object file lookup

Upstream: merged - expected 7.3.1
Git-commit: cf0c8d10e1870d89b39f40382634db51aa8fcf2c

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@linux.ibm.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
---
 kernel.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/kernel.c b/kernel.c
index 36fdea29b1cb..b2c8a0ccb7ab 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);
-- 
2.31.1

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File crash-mod-fix-module-object-file-lookup.patch of Package crash

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