1 2# Copyright (c)2011,2013 YAMAMOTO Takashi, 3# All rights reserved. 4# 5# Redistribution and use in source and binary forms, with or without 6# modification, are permitted provided that the following conditions 7# are met: 8# 1. Redistributions of source code must retain the above copyright 9# notice, this list of conditions and the following disclaimer. 10# 2. Redistributions in binary form must reproduce the above copyright 11# notice, this list of conditions and the following disclaimer in the 12# documentation and/or other materials provided with the distribution. 13# 14# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24# SUCH DAMAGE. 25 26# a macro to dump kernel modules 27 28# printed addresses can be used for gdb add-symbol-file command. 29# 30# for example: 31# 32# % objdump -h puffs.kmod 33# : 34# : 35# : 36# Sections: 37# Idx Name Size VMA LMA File off Algn 38# 0 .text 0000c87c 0000000000000000 0000000000000000 00000040 2**2 39# CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE 40# : 41# : 42# : 43# 44# 45# (gdb) target kvm /dev/mem 46# #0 0xffffffff804f14d4 in mi_switch (l=0xffffffff80dfa020) 47# at /siro/nbsd/src/sys/kern/kern_synch.c:720 48# 720 prevlwp = cpu_switchto(l, newl, returning); 49# (gdb) modules module puffs 0xffffffff810c6000-0xffffffff810ffcd0 50# module wmimsi 51# module wmihp 52# module wmieeepc 53# : 54# : 55# : 56# (gdb) add-symbol-file /siro/nbsd/src/sys/modules/puffs/obj/puffs.kmod 0xffffffff810c6000+0x40 57# add symbol table from file "/siro/nbsd/src/sys/modules/puffs/obj/puffs.kmod" at 58# .text_addr = 0xffffffff810c6040 59# (y or n) y 60# Reading symbols from /siro/nbsd/src/sys/modules/puffs/obj/puffs.kmod...done. 61# (gdb) disas puffs_getvnode 62# Dump of assembler code for function puffs_getvnode: 63# 0xffffffff810c609a <+0>: push %rbp 64# 0xffffffff810c609b <+1>: rorb $0x45,-0x75(%rax) 65# 0xffffffff810c609f <+5>: callq 0xffffffffc9dce9ed 66# 0xffffffff810c60a4 <+10>: mov $0x810d28a0,%ecx 67# 0xffffffff810c60aa <+16>: mov $0x16,%edx 68# 0xffffffff810c60af <+21>: mov $0x1,%esi 69 70define modules 71 set $h = module_list 72 set $e = $h.tqh_first 73 while ($e != 0) 74 if ($e->mod_kobj != 0) 75 printf "module %s\n\t text=0x%016lx/%u\n\t data=0x%016lx/%u\n\trodata=0x%016lx/%u\n", \ 76 $e->mod_info.mi_name, \ 77 $e->mod_kobj->ko_text_address, \ 78 $e->mod_kobj->ko_text_size, \ 79 $e->mod_kobj->ko_data_address, \ 80 $e->mod_kobj->ko_data_size, \ 81 $e->mod_kobj->ko_rodata_address, \ 82 $e->mod_kobj->ko_rodata_size 83 else 84 printf "module %s\n", \ 85 $e->mod_info.mi_name 86 end 87 set $e = $e->mod_chain.tqe_next 88 end 89end 90