查看汇编代码和C代码 [英] View Both Assembly and C code

问题描述

我们有没有办法使用gdb查看汇编代码和c代码.

Do we have a way to view assembly and c code both using gdb.

disassemble function_name仅显示汇编语言，我试图找到一种将c代码轻松映射到汇编语言的方法. 谢谢

disassemble function_name shows only assembly, I was trying to find a way to easliy map c code to assembly. Thanks

推荐答案

您可以在文本用户界面(TUI)模式下运行gdb:

You can run gdb in Text User Interface (TUI) mode:

gdb -tui <your-binary>
(gdb) b main
(gdb) r
(gdb) layout split

layout split命令将窗口分为两部分-其中一部分显示源代码，另一部分显示相应的程序集. 其他一些技巧:

The layout split command divides the window into two parts - one of them displaying the source code, the other one the corresponding assembly. A few others tricks:

• 设置可拆卸口味的intel -如果您更喜欢intel表示法
• 设置print asm-demangle -在程序集视图中对C ++名称进行分拆
• ni -下一条指令
• si -步骤说明

• set disassembly-flavor intel - if your prefer intel notation
• set print asm-demangle - demangles C++ names in assembly view
• ni - next instruction
• si - step instruction

如果您不想使用TUI模式(例如，您的终端不喜欢它)，您可以随时执行以下操作:

If you do not want to use the TUI mode (e.g. your terminal does not like it), you can always do:

x /12i $pc

这意味着从当前程序计数器地址打印12条指令-这也适用于上述技巧(分拆，步进指令等).

which means print 12 instructions from current program counter address - this also works with the tricks above (demangling, stepping instructions, etc.).

"x/12i $ pc"技巧在gdb和cgdb中均有效，而布局拆分"仅在gdb中有效.

The "x /12i $pc" trick works in both gdb and cgdb, whereas "layout split" only works in gdb.

享受:)

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