sudo apt-get install vgabios bochs-x bximage bochs
或者是下載bochs-xxx.tar.gz包
tar -xzf bochs-xxx.tar.gz
cd bochs-xxx
./cofigure –enable-debugger –enable-disasm
make
sudo make install
注意"./configure"之後的參數便是打開調試功能的開關。在安裝過程中，如果遇到任何困難，不要驚慌，其官方網站上有詳細的安裝說明。
出現的常見問題以及解決辦法：
(1) 出現
1 “ERROR: X windows gui was selected, but X windows libraries were not found.
解決辦法：
sudo apt-get install libx11-dev xserver-xorg-dev xorg-dev
(2) 出現
1 “ERROR: pkg-config was not found, or unable to access the gtk+-2.0 package. Install pkg-config and the gtk+ development package, or disable the gui debugger, or the wxWidgets display library (whichever is being used).”
2 ERROR: pkg-config was not found, or unable to access the gtk+-2.0 package.Install pkg-config and the gtk+ development package,or disable the gui debugger, or the wxWidgets display library (whichever is being used)
解決辦法：
sudo apt-get install libgtk2.0-dev
(3)
1 checking for C compiler default output file name… configure: error: C compiler cannot create executables
解決方法：
1 apt-get install libc6-dev
(4)
1 configure: error: C++ preprocessor "/lib/cpp" fails sanity check
解決方法：
1 apt-get install build-essential
(5)
1 X windows gui was selected, but X windows libraries were not found.
解決方法：配置的時候加上–with-nogui(不過後來試了，改成apt-get install xorg-dev也行 ）
二、bochs 的調試命令
c|cont|continue - continue executing
s|step [count] - execute #count instructions on current processor (default is one instruction)
s|step [cpu] <count> - execute #count instructions on processor #cpu
s|step all <count> - execute #count instructions on all the processors
n|next|p - execute instruction stepping over subroutines
modebp - toggles mode switch breakpoint
vmexitbp - toggles VMEXIT switch breakpoint
u|disasm [/count] <start> <end> - disassemble instructions for given linear address
Optional 'count' is the number of disassembled instructions
u|disasm switch-mode - switch between Intel and AT&T disassembler syntax
u|disasm hex on/off - control disasm offsets and displacements format
u|disasm size = n - tell debugger what segment size [16|32|64] to use
when "disassemble" command is used.
x /nuf <addr> - examine memory at linear address
xp /nuf <addr> - examine memory at physical address
nuf is a sequence of numbers (how much values to display)
and one or more of the [mxduotcsibhwg] format specificators:
x,d,u,o,t,c,s,i select the format of the output (they stand for
hex, decimal, unsigned, octal, binary, char, asciiz, instr)
b,h,w,g select the size of a data element (for byte, half-word,
word and giant word)
m selects an alternative output format (memory dump)
三、bochs使用心得
當在工程目錄中打開bochs後，如一下畫面
然後輸入命令
show int然後接着輸入命令
c你將會看見仿真系統在中斷觸發時，會顯示在當前終端中，方便trace中斷的執行情況
