linux-kernel - [PATCH] scripts/gdb: Handle split debug

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Message-Id: <20190730234052.148744-1-dianders@chromium.org>
Date:   Tue, 30 Jul 2019 16:40:52 -0700
From:   Douglas Anderson <dianders@...omium.org>
To:     Jan Kiszka <jan.kiszka@...mens.com>,
        Kieran Bingham <kbingham@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     kgdb-bugreport@...ts.sourceforge.net,
        Jason Wessel <jason.wessel@...driver.com>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] scripts/gdb: Handle split debug

Some systems (like Chrome OS) may use "split debug" for kernel
modules.  That means that the debug symbols are in a different file
than the main elf file.  Let's handle that by also searching for debug
symbols that end in ".ko.debug".

Signed-off-by: Douglas Anderson <dianders@...omium.org>
---

 scripts/gdb/linux/symbols.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py
index 2f5b95f09fa0..34e40e96dee2 100644
--- a/scripts/gdb/linux/symbols.py
+++ b/scripts/gdb/linux/symbols.py
@@ -77,12 +77,12 @@ lx-symbols command."""
             gdb.write("scanning for modules in {0}\n".format(path))
             for root, dirs, files in os.walk(path):
                 for name in files:
-                    if name.endswith(".ko"):
+                    if name.endswith(".ko") or name.endswith(".ko.debug"):
                         self.module_files.append(root + "/" + name)
         self.module_files_updated = True
 
     def _get_module_file(self, module_name):
-        module_pattern = ".*/{0}\.ko$".format(
+        module_pattern = ".*/{0}\.ko(?:.debug)?$".format(
             module_name.replace("_", r"[_\-]"))
         for name in self.module_files:
             if re.match(module_pattern, name) and os.path.exists(name):
-- 
2.22.0.709.g102302147b-goog