linux-kernel - [PATCH v2] gdb: lx-symbols: store the abspath()

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Date:   Thu, 17 Dec 2020 09:17:47 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     linux-kernel@...r.kernel.org
Cc:     Jan Kiszka <jan.kiszka@...mens.com>,
        Kieran Bingham <kbingham@...nel.org>,
        Johannes Berg <johannes.berg@...el.com>
Subject: [PATCH v2] gdb: lx-symbols: store the abspath()

From: Johannes Berg <johannes.berg@...el.com>

If we store the relative path, the user might later cd to a
different directory, and that would break the automatic symbol
resolving that happens when a module is loaded into the target
kernel. Fix this by storing the abspath() of each path given,
just like we already do for the cwd (os.getcwd() is absolute.)

Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
v2: break the long line
---
 scripts/gdb/linux/symbols.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py
index 1be9763cf8bb..08d264ac328b 100644
--- a/scripts/gdb/linux/symbols.py
+++ b/scripts/gdb/linux/symbols.py
@@ -164,7 +164,8 @@ lx-symbols command."""
             saved_state['breakpoint'].enabled = saved_state['enabled']
 
     def invoke(self, arg, from_tty):
-        self.module_paths = [os.path.expanduser(p) for p in arg.split()]
+        self.module_paths = [os.path.abspath(os.path.expanduser(p))
+                             for p in arg.split()]
         self.module_paths.append(os.getcwd())
 
         # enforce update
-- 
2.26.2