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authoryamt <yamt@NetBSD.org>2013-03-06 11:26:22 +0000
committeryamt <yamt@NetBSD.org>2013-03-06 11:26:22 +0000
commit78544e78003d3339a13293d1b0b73a2e344ef4e6 (patch)
treeda9ae0fd10bfbe0d72946f83434b2d2f4fd6d56c /sys/gdbscripts/module
parent4fcd7b3deae03ff69b3e9a7e20dd8198d5d64406 (diff)
update script
comment and example
Diffstat (limited to 'sys/gdbscripts/module')
-rw-r--r--sys/gdbscripts/module73
1 files changed, 71 insertions, 2 deletions
diff --git a/sys/gdbscripts/module b/sys/gdbscripts/module
index a0e1df6bcd1..411c8efcb52 100644
--- a/sys/gdbscripts/module
+++ b/sys/gdbscripts/module
@@ -1,9 +1,78 @@
+
+# Copyright (c)2011,2013 YAMAMOTO Takashi,
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# a macro to dump kernel modules
+
+# printed addresses can be used for gdb add-symbol-file command.
+#
+# for example:
+#
+# % objdump -h puffs.kmod
+# :
+# :
+# :
+# Sections:
+# Idx Name Size VMA LMA File off Algn
+# 0 .text 0000c87c 0000000000000000 0000000000000000 00000040 2**2
+# CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
+# :
+# :
+# :
+#
+#
+# (gdb) target kvm /dev/mem
+# #0 0xffffffff804f14d4 in mi_switch (l=0xffffffff80dfa020)
+# at /siro/nbsd/src/sys/kern/kern_synch.c:720
+# 720 prevlwp = cpu_switchto(l, newl, returning);
+# (gdb) modules module puffs 0xffffffff810c6000-0xffffffff810ffcd0
+# module wmimsi
+# module wmihp
+# module wmieeepc
+# :
+# :
+# :
+# (gdb) add-symbol-file /siro/nbsd/src/sys/modules/puffs/obj/puffs.kmod 0xffffffff810c6000+0x40
+# add symbol table from file "/siro/nbsd/src/sys/modules/puffs/obj/puffs.kmod" at
+# .text_addr = 0xffffffff810c6040
+# (y or n) y
+# Reading symbols from /siro/nbsd/src/sys/modules/puffs/obj/puffs.kmod...done.
+# (gdb) disas puffs_getvnode
+# Dump of assembler code for function puffs_getvnode:
+# 0xffffffff810c609a <+0>: push %rbp
+# 0xffffffff810c609b <+1>: rorb $0x45,-0x75(%rax)
+# 0xffffffff810c609f <+5>: callq 0xffffffffc9dce9ed
+# 0xffffffff810c60a4 <+10>: mov $0x810d28a0,%ecx
+# 0xffffffff810c60aa <+16>: mov $0x16,%edx
+# 0xffffffff810c60af <+21>: mov $0x1,%esi
+
define modules
set $h = module_list
- set $e = $h->tqh_first
+ set $e = $h.tqh_first
while ($e != 0)
if ($e->mod_kobj != 0)
- printf "module %s\t0x%016x-0x%016x\n", \
+ printf "module %s\t0x%016lx-0x%016lx\n", \
$e->mod_info.mi_name, \
$e->mod_kobj->ko_address, \
$e->mod_kobj->ko_address + $e->mod_kobj->ko_size