[PATCH][2.6-mm] kgdb documentation fix

[PATCH][2.6-mm] kgdb documentation fix

[Matthias Urlichs]

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Hi,

Please apply.

--- 

Update Documentation/i386/kgdb/gdbinit-modules to conform
to the current kernel's module data structure.

Signed-Off-By: Matthias Urlichs <smurf@smurf.noris.de>

--- 

===== Documentation/i386/kgdb/gdbinit-modules 1.1 vs edited =====
--- 1.1/Documentation/i386/kgdb/gdbinit-modules	2005-02-12 12:44:54 +01:00
+++ edited/Documentation/i386/kgdb/gdbinit-modules	2005-02-12 20:12:45 +01:00
@@ -60,87 +60,90 @@
 # $mod is set to NULL.  This ensure to not add symbols for a wrong
 # address.
 #
+# 
+# Sat Feb 12 20:05:47 CET 2005
+#
+# Adapted to the 2.6.* module data structure.
+# (Getting miffed at gdb for not having "offsetof" in the process :-/ )
+# 
+# Autogenerate add-symbol-file statements from the module list instead
+# of relying on a no-longer-working loadmodule.sh program.
+# 
+#                                   Matthias Urlichs <smurf@debian.org>
+#
+#
 # Have a nice hacking day !
 #
 #
 define mod-list
-    set $mod = (struct module*)module_list
-    # the last module is the kernel, ignore it
-    while $mod != &kernel_module
-    	printf "%p\t%s\n", (long)$mod, ($mod)->name
-	set $mod = $mod->next
+    set $lmod = modules->next
+    # This is a circular data structure
+    while $lmod != &modules
+		set $mod = (struct module *)(((char *)$lmod) - ((int)&(((struct module *)0) -> list)))
+        printf "%p\t%s\n", $mod, $mod->name
+		set $lmod = $lmod->next
     end
 end
 document mod-list
+mod-list
 List all modules in the form: <module-address> <module-name>
 Use the <module-address> as the argument for the other
 mod-commands: mod-print-symbols, mod-add-symbols.
 end
 
+define mod-list-syms
+    set $lmod = modules->next
+    # This is a circular data structure
+    while $lmod != &modules
+		set $mod = (struct module *)(((char *)$lmod) - ((int)&(((struct module *)0) -> list)))
+        printf "add-symbol-file %s.ko %p\n", $mod->name, $mod->module_core
+		set $lmod = $lmod->next
+    end
+end
+document mod-list-syms
+mod-list-syms
+List all modules in the form: add-symbol-file <module-path> <module-core>
+for adding modules' symbol tables without loadmodule.sh.
+end
+
 define mod-validate
-    set $mod = (struct module*)module_list
-    while ($mod != $arg0) && ($mod != &kernel_module)
-    	set $mod = $mod->next
+    set $lmod = modules->next
+	set $mod = (struct module *)(((char *)$lmod) - ((int)&(((struct module *)0) -> list)))
+    while ($lmod != &modules) && ($mod != $arg0)
+        set $lmod = $lmod->next
+	    set $mod = (struct module *)(((char *)$lmod) - ((int)&(((struct module *)0) -> list)))
     end
-    if $mod == &kernel_module
-	set $mod = 0
-    	printf "%p is not a module\n", $arg0
+    if $lmod == &modules
+    	set $mod = 0
+        printf "%p is not a module\n", $arg0
     end
 end
 document mod-validate
 mod-validate <module-address>
 Internal user-command used to validate the module parameter.
-If <module> is a real loaded module, set $mod to it otherwise set $mod to 0.
+If <module> is a real loaded module, set $mod to it, otherwise set $mod
+to 0.
 end
 
-
 define mod-print-symbols
     mod-validate $arg0
     if $mod != 0
-	set $i = 0
-	while $i < $mod->nsyms
-	    set $sym = $mod->syms[$i]
-	    printf "%p\t%s\n", $sym->value, $sym->name
-	    set $i = $i + 1
-	end
+		set $i = 0
+		while $i < $mod->num_syms
+			set $sym = $mod->syms[$i]
+			printf "%p\t%s\n", $sym->value, $sym->name
+			set $i = $i + 1
+		end
+		set $i = 0
+		while $i < $mod->num_gpl_syms
+			set $sym = $mod->gpl_syms[$i]
+			printf "%p\t%s\n", $sym->value, $sym->name
+			set $i = $i + 1
+		end
     end
 end
 document mod-print-symbols
 mod-print-symbols <module-address>
-Print all exported symbols of the module.  see mod-list
-end
-
-
-define mod-add-symbols-align
-    mod-validate $arg0
-    if $mod != 0
-	set $mod_base = ($mod->size_of_struct + (long)$mod)
-	if ($arg2 != 0) && (($mod_base & ($arg2 - 1)) != 0)
-	    set $mod_base = ($mod_base | ($arg2 - 1)) + 1
-	end
-	add-symbol-file $arg1 $mod_base
-    end
-end
-document mod-add-symbols-align
-mod-add-symbols-align <module-address> <object file path name> <align>
-Load the symbols table of the module from the object file where
-first section aligment is <align>.
-To retreive alignment, use `objdump -h <object file path name>'.
+Print all exported symbols of the module.  See mod-list
 end
 
-define mod-add-symbols
-    mod-add-symbols-align $arg0 $arg1 sizeof(long)
-end
-document mod-add-symbols
-mod-add-symbols <module-address> <object file path name>
-Load the symbols table of the module from the object file.
-Default alignment is 4.  See mod-add-symbols-align.
-end
-
-define mod-add-lis
-    mod-add-symbols-align $arg0 /usr/src/LiS/streams.o 16
-end
-document mod-add-lis
-mod-add-lis <module-address>
-Does mod-add-symbols <module-address> /usr/src/LiS/streams.o
-end

-- 
Matthias Urlichs   |   {M:U} IT Design @ m-u-it.de   |  smurf@smurf.noris.de

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