Setting Breakpoints in GDB on Linux

In Linux, you can use GDB (GNU Debugger) to set breakpoints. Here are several commonly used methods for setting breakpoints.

  1. Manually add breakpoints in the source code: Add the break keyword before the line where you wish to set the breakpoint. For example, break main.c:10 will set a breakpoint at line 10 in the main.c file.
  2. Setting a breakpoint using function names: You can set a breakpoint by using a function name as a parameter. For example, “break main” will set a breakpoint in the main function of the program.
  3. Set breakpoints using addresses: You can set breakpoints by using hexadecimal addresses as parameters. For example, “break *0x12345678” will set a breakpoint at address 0x12345678.
  4. Set breakpoints with conditions: You can use conditional expressions as parameters to set breakpoints. For example, “break main if argc > 5” will set a breakpoint in the main function, and only when the number of command-line arguments is greater than 5.
  5. You can set a temporary breakpoint using the tbreak command, which will be automatically deleted after being triggered once.
  6. Conditional breakpoints can be set using the watch command, which will trigger the breakpoint when the value of a specific variable changes.

These are just some common ways to set breakpoints, GDB also provides many other functions and commands for more precise breakpoint setting and debugging operations.

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