(side note: i finally figured out the intricacies of seq files. i'd explain them, but then you wouldn't read my column about them when it came out. :-)
as a followup to my current kernel newbie column over at linux.com, next week, i'm going to cover how to use stock "gdb" to debug both the kernel and loadable modules. following the presentation of exactly that in LDD3: http://lwn.net/Kernel/LDD3/ first, a question or two about using gdb on the kernel itself. as long as my running kernel matches my vmlinux image, i can run: # gdb vmlinux /proc/kcore at which point i can display the contents of symbols in kernel space, such as: (gdb) p jiffies_64 $1 = 4316697603 (gdb) Q1: can i get a full list of the current kernel symbol table while i'm in gdb? i've tried (gdb) info variables but that just hung. is there another gdb command? Q2: i can also display the vmlinux sections thusly: (gdb) info files Symbols from "/home/rpjday/k/f11/vmlinux". Local core dump file: `/proc/kcore', file type elf64-x86-64. 0xffffffffff600000 - 0xffffffffffe00000 is load1 0xffffffffa0000000 - 0xffffffffff000000 is load2 0xffffffff81009000 - 0xffffffff81941000 is load3 0xffffc90000000000 - 0xffffe8ffffffffff is load4 0xffff880000000000 - 0xffff880120000000 is load5 Local exec file: `/home/rpjday/k/f11/vmlinux', file type elf64-x86-64. Entry point: 0x1000000 0xffffffff81000000 - 0xffffffff81009000 is .text.head 0xffffffff81009000 - 0xffffffff813f2ecf is .text 0xffffffff813f2ed0 - 0xffffffff813f304c is .notes 0xffffffff813f3050 - 0xffffffff813f7140 is __ex_table 0xffffffff813f8000 - 0xffffffff8158f18a is .rodata 0xffffffff8158f190 - 0xffffffff815951fc is __bug_table ... etc etc ... is there a similar way i can display the symbol table for a specific section? thanks. more dumb questions shortly. rday -- ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Annoying Kernel Pedantry. Web page: http://crashcourse.ca Twitter: http://twitter.com/rpjday "Kernel Newbie Corner" column @ linux.com: http://cli.gs/WG6WYX ======================================================================== -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to [email protected] Please read the FAQ at http://kernelnewbies.org/FAQ
