關于arm處理器 內存編址模式 與 字節對齊方式
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出現的位置如下（其中Debug的內容是我在程序中添加的調試信息）：
root@211.69.193.189:~# arm_v5t_le-gcc -g shit.c
root@211.69.193.189:~# ./a.out
Debug: malloc space for the actual data: temp_buf = 0x13118
Debug: in my_recvn()
Debug: nleft = 52
Bus error
打開調試器進行調試：
root@211.69.193.189:~# gdb a.out
GNU gdb 6.3 (MontaVista 6.3-20.0.22.0501131 2005-07-22)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "armv5tl-montavista-linuxeabi"...Using host libthread_db library "/lib/tls/libthread_db.so.1".
(gdb) run // 運行程序
Starting program: /home/zpf/a.out
Debug: in get_program_info()
Debug: in conn_server(char *err_buf_ptr)
Debug: gonna create a socket
Debug: gonna fill in the serv_addr structure
Debug: gonna connect to a server
Debug: gonna send LIN_RST
Debug: in my_sendn()
Debug: send 4 bytes to server:
Debug: gonna receive LIN_RSP
Debug: in my_recvn()
Debug: nleft = 3
Debug: received first 3 bytes from server: 7
Debug: gonna check if 3rd byte is the package type
Debug: received package length = 55
Debug: malloc space for the actual data: temp_buf = 0x13118
Debug: in my_recvn()
Debug: nleft = 52
Program received signal SIGBUS, Bus error. // 在這里出現了錯誤
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