From: Glenn Washburn <development@efficientek.com>
Date: Tue, 21 Feb 2023 18:28:48 +0000 (-0600)
Subject: gdb: If no modules have been loaded, do not try to load module symbols
X-Git-Tag: grub-2.12-rc1~123
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c152f3a44dca47acd7c1b4e32deee766ed615469;p=thirdparty%2Fgrub.git

gdb: If no modules have been loaded, do not try to load module symbols

This prevents load_all_modules from failing when called before any
modules have been loaded. Failures in GDB user-defined functions cause
any function which called them to also fail.

Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---

diff --git a/grub-core/gdb_grub.in b/grub-core/gdb_grub.in
index edb5a8872..fc17e3d89 100644
--- a/grub-core/gdb_grub.in
+++ b/grub-core/gdb_grub.in
@@ -63,7 +63,9 @@ define load_all_modules
 		dump_module_sections $this
 		set $this = $this->next
 	end
-	match_and_load_symbols
+	if (grub_dl_head != 0)
+		match_and_load_symbols
+	end
 end
 document load_all_modules
 	Load debugging information for all loaded modules.