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Full Discussion: Why cannot only the "rtl8139_rx" function be setted breakpoint on whereas the others can?
Top Forums UNIX for Advanced & Expert Users Why cannot only the "rtl8139_rx" function be setted breakpoint on whereas the others can? Post 302570471 by Corona688 on Thursday 3rd of November 2011 11:22:32 AM
Old 11-03-2011
See the symbols in a module with objdump -t:

Code:
$ objdump -t /lib/modules/2.6.27-gentoo-r8/kernel/drivers/net/tun.ko
tun.ko:     file format elf32-i386

SYMBOL TABLE:
00000000 l    d  .note.gnu.build-id     00000000 .note.gnu.build-id
00000000 l    d  .text  00000000 .text
00000000 l    d  .init.text     00000000 .init.text
00000000 l    d  .altinstr_replacement  00000000 .altinstr_replacement
00000000 l    d  .rodata        00000000 .rodata
00000000 l    d  .smp_locks     00000000 .smp_locks
00000000 l    d  .rodata.str1.1 00000000 .rodata.str1.1
00000000 l    d  __bug_table    00000000 __bug_table
00000000 l    d  .altinstructions       00000000 .altinstructions
00000000 l    d  .modinfo       00000000 .modinfo
00000000 l    d  .data  00000000 .data
00000000 l    d  .gnu.linkonce.this_module      00000000 .gnu.linkonce.this_module
00000000 l    d  .bss   00000000 .bss
00000000 l    d  .comment       00000000 .comment
00000000 l    d  .note.GNU-stack        00000000 .note.GNU-stack
00000000 l    df *ABS*  00000000 tun.c
00000000 l     F .text  00000005 tun_net_mclist
00000005 l     F .text  0000002c tun_net_change_mtu
00000031 l     F .text  00000037 tun_chr_poll
00000068 l     F .text  0000003d tun_get_settings
000000a5 l     F .text  0000000a tun_get_msglevel
000000af l     F .text  00000005 tun_set_msglevel
000000b4 l     F .text  0000001a tun_set_rx_csum
000000ce l     F .text  0000001e tun_cleanup
00000000 l     O .data  0000001c tun_miscdev
00000000 l     O .bss   00000004 tun_net_id
0000001c l     O .data  00000010 tun_net_ops
000000ec l     F .text  00000079 tun_chr_fasync
00000165 l     F .text  0000001c tun_chr_open
00000181 l     F .text  00000063 tun_chr_close
000001e4 l     F .text  00000012 tun_net_open
000001f6 l     F .text  0000004c tun_exit_net
00000242 l     F .text  0000004d tun_init_net
00000000 l     F .init.text     00000083 tun_init
0000028f l     F .text  0000025d tun_chr_aio_read
000004ec l     F .text  00000722 tun_chr_ioctl
0000110d l     F .text  00000080 tun_setup
00000c0e l     F .text  000003c6 tun_chr_aio_write
00000fd4 l     F .text  00000139 tun_net_xmit
0000120c l     F .text  00000012 tun_net_close
00000000 l     O .rodata        000000b4 tun_ethtool_ops
0000118d l     F .text  00000060 tun_get_drvinfo
000011ed l     F .text  0000000b tun_get_link
000011f8 l     F .text  00000014 tun_get_rx_csum
00000000 l     O .modinfo       00000018 __mod_alias1277
00000018 l     O .modinfo       0000000c __mod_license1276
00000040 l     O .modinfo       00000039 __mod_author1275
00000080 l     O .modinfo       0000002c __mod_description1274
000000c0 l     O .rodata        0000006c tun_fops
00000000 l    df *ABS*  00000000 tun.mod.c
000000c0 l     O .modinfo       00000009 __module_depends
000000e0 l     O .modinfo       0000002d __mod_vermagic5
00000000         *UND*  00000000 strcpy
00000000         *UND*  00000000 rtnl_unlock
00000000         *UND*  00000000 misc_deregister
00000000         *UND*  00000000 copy_from_user
00000000         *UND*  00000000 skb_put
00000000         *UND*  00000000 rtnl_is_locked
00000000         *UND*  00000000 skb_copy_datagram_from_iovec
00000000 g     O .gnu.linkonce.this_module      00000240 __this_module
00000000         *UND*  00000000 __netif_schedule
00000000         *UND*  00000000 skb_dequeue
00000000         *UND*  00000000 kill_fasync
00000000         *UND*  00000000 memcpy_fromiovec
00000000         *UND*  00000000 __alloc_pages_internal
000000ce g     F .text  0000001e cleanup_module
00000000         *UND*  00000000 dev_alloc_name
00000000         *UND*  00000000 do_sync_write
00000000         *UND*  00000000 kfree
00000000         *UND*  00000000 add_wait_queue
00000000         *UND*  00000000 __wake_up
00000000         *UND*  00000000 init_waitqueue_head
00000000         *UND*  00000000 bitrev32
00000000         *UND*  00000000 skb_copy_datagram_iovec
00000000         *UND*  00000000 __dev_get_by_name
00000000         *UND*  00000000 ether_setup
00000000         *UND*  00000000 netdev_features_change
00000000 g     F .init.text     00000083 init_module
00000000         *UND*  00000000 eth_type_trans
00000000         *UND*  00000000 dump_stack
00000000         *UND*  00000000 do_sync_read
00000000         *UND*  00000000 kfree_skb
00000000         *UND*  00000000 schedule
00000000         *UND*  00000000 alloc_netdev_mq
00000000         *UND*  00000000 __alloc_skb
00000000         *UND*  00000000 __put_user_4
00000000         *UND*  00000000 memcpy_toiovec
00000000         *UND*  00000000 kmem_cache_alloc
00000000         *UND*  00000000 capable
00000000         *UND*  00000000 skb_queue_tail
00000000         *UND*  00000000 unlock_kernel
00000000         *UND*  00000000 contig_page_data
00000000         *UND*  00000000 crc32_le
00000000         *UND*  00000000 strncmp
00000000         *UND*  00000000 fasync_helper
00000000         *UND*  00000000 copy_to_user
00000000         *UND*  00000000 free_netdev
00000000         *UND*  00000000 lock_kernel
00000000         *UND*  00000000 printk
00000000         *UND*  00000000 dev_set_mac_address
00000000         *UND*  00000000 netif_rx_ni
00000000         *UND*  00000000 skb_queue_purge
00000000         *UND*  00000000 misc_register
00000000         *UND*  00000000 __f_setown
00000000         *UND*  00000000 default_wake_function
00000000         *UND*  00000000 register_pernet_gen_device
00000000         *UND*  00000000 jiffies
00000000         *UND*  00000000 skb_partial_csum_set
00000000         *UND*  00000000 no_llseek
00000000         *UND*  00000000 rtnl_lock
00000000         *UND*  00000000 remove_wait_queue
00000000         *UND*  00000000 get_random_bytes
00000000         *UND*  00000000 net_assign_generic
00000000         *UND*  00000000 strchr
00000000         *UND*  00000000 unregister_netdevice
00000000         *UND*  00000000 unregister_pernet_gen_device
00000000         *UND*  00000000 __kmalloc
00000000         *UND*  00000000 kmalloc_caches
00000000         *UND*  00000000 per_cpu__current_task
00000000         *UND*  00000000 register_netdevice

$

 

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