NetBSD/sys/gdbscripts/module

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# 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 = $h.tqh_first
while ($e != 0)
if ($e->mod_kobj != 0)
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
else
printf "module %s\n", \
$e->mod_info.mi_name
end
set $e = $e->mod_chain.tqe_next
end
end