[PATCH 1/8] scripts/gdb/symbols: add specific ko module load command
From: Kuan-Ying Lee <hidden>
Date: 2023-07-25 09:37:06
Also in:
linux-mediatek, linux-mm, lkml
Subsystem:
gdb kernel debugging helper scripts, the rest · Maintainers:
Jan Kiszka, Kieran Bingham, Linus Torvalds
Add lx-symbols <ko_path> command to support add specific ko module. Example output like below: (gdb) lx-symbols mm/kasan/kasan_test.ko loading @0xffff800002d30000: mm/kasan/kasan_test.ko Signed-off-by: Kuan-Ying Lee <redacted> --- scripts/gdb/linux/symbols.py | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py
index fdad3f32c747..b21ae62fdd7d 100644
--- a/scripts/gdb/linux/symbols.py
+++ b/scripts/gdb/linux/symbols.py@@ -107,11 +107,12 @@ lx-symbols command.""" name=section_name, addr=str(address))) return "".join(args) - def load_module_symbols(self, module): + def load_module_symbols(self, module, module_file=None): module_name = module['name'].string() module_addr = str(module['mem'][constants.LX_MOD_TEXT]['base']).split()[0] - module_file = self._get_module_file(module_name) + if not module_file: + module_file = self._get_module_file(module_name) if not module_file and not self.module_files_updated: self._update_module_files() module_file = self._get_module_file(module_name)
@@ -135,6 +136,19 @@ lx-symbols command.""" else: gdb.write("no module object found for '{0}'\n".format(module_name)) + def load_ko_symbols(self, mod_path): + self.loaded_modules = [] + module_list = modules.module_list() + + for module in module_list: + module_name = module['name'].string() + module_pattern = ".*/{0}\.ko(?:.debug)?$".format( + module_name.replace("_", r"[_\-]")) + if re.match(module_pattern, mod_path) and os.path.exists(mod_path): + self.load_module_symbols(module, mod_path) + return + raise gdb.GdbError("%s is not a valid .ko\n" % mod_path) + def load_all_symbols(self): gdb.write("loading vmlinux\n")
@@ -173,6 +187,11 @@ lx-symbols command.""" self.module_files = [] self.module_files_updated = False + argv = gdb.string_to_argv(arg) + if len(argv) == 1: + self.load_ko_symbols(argv[0]) + return + self.load_all_symbols() if hasattr(gdb, 'Breakpoint'):
--
2.18.0