gdb调试高级用法

1、gdb 调试级法gcc -dumpspecs如何在调试内核时，同时可以调试应程序的做法：c 1 c 0 8 0 text = yl * = &n 0 00 0 0 4 0 0 0 0 4 A 0 0 A 0 0 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0 4 0 0 8 0 0 8 0 0 1 00 10 1000 10 10 10 4 000 0 0 10 0 1 00 10 10 4 0 10 0 10WAXM SILGxOop * subi st st mov st st st = bmaski 0 st & ld bmaski 8 0 bt = 0-0-2-

2、p=av.ko反汇编： = = = = = i/i = | = | = i/i= |= | gdb dump内存中的数据及查看代码段是否被冲：+p= c c :=.=.=.= =.;.=.; =.;=.;.= ;.= ;TTTTTtttgdb.gdbinit件的写法：1234 5 6 7 89编译中间结果： rootgx6602 /# lsmodohci_hcd 19028 0 - Live 0 xc009e000ehci_hcd 33276 0 - Live 0 xc00b9000fe 221368 0 - Live 0 xc03c7000av 1933852 0 - Live0 xc0b7

3、f000yingcyingc:/nfs/lib/modules/2.6.27.55$ csky-linux-objdump -h av.koav.ko: file format elf32-csky-littleSections:Idx NameSizeVMALMAFile off Algn0 .note.gnu.build-id 00000024 00000000 00000000 00000034 2*2CONTENTS, ALLOC, LOAD, READONLY, DATA1 .text000c1824 00000000 0000000000000058 2*2CONTENTS, AL

4、LOC, LOAD, RELOC, READONLY, CODE2 .init.text 000001e8 00000000 00000000 000c187c 2*2(cskygdb) add-symbol-file /nfs/lib/modules/2.6.27.55/av.koThe address where /home/yingc/nfs/lib/modules/2.6.27.55/av.ko has been loaded is missing(cskygdb) add-symbol-file /nfs/lib/modules/2.6.27.55/av.ko 0 xc0b7f058add symbol table from file /home/yingc/nfs/lib/modules/2.6.27.55/av.ko at.text_addr = 0 xc0b7f058(y or n) yReading symbols from /home/yingc/nfs/lib/modules/