[問題] gdb debug linux module

[gigigigi (gigigigi)]

我步驟

cd /sys/module/hello/sections

cat .text .data .bss // 取得 .text .data .bss address
0xbf000000
0xbf0003d5
0xbf0004e0

// 加入gdb
add-symbol-file ../hello_module/hello.ko 0xbf000000 -s .data 0xbf0003d5 -s .bss 0xbf0004e0

https://gist.github.com/anonymous/f999ebaddcc94749b837 // 程式碼跟Makefile

(gdb) b hello_exit
Cannot access memory at address 0xbf00002c  // 會出現這樣錯誤

我記得我以前成功過, 請問有人知道原因嗎？

謝謝

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推 PCIT:dmesg有沒有錯誤？
推 mimi0213:Alternatively, you can use gdb on a running kernel.
→ mimi0213:(read-only; i.e. you cannot change values or set brea
→ mimi0213:k points.)  reference:README under kernel source