Difference between revisions of "Debugging - GDB tricks"
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* Q: How do I examine an ansistring? | * Q: How do I examine an ansistring? | ||
* A: "x/s <stringname>" | * A: "x/s <stringname>" | ||
| − | + | ||
| + | == Stop debugger on exception == | ||
| + | * Q: How to stop gdb on exception | ||
| + | * A: b fpc_raiseexception | ||
| + | |||
| + | * Q: How to show call stack | ||
| + | * A: bt | ||
| + | |||
| + | == Work with breakpoints == | ||
| + | * Add: b TObject__Method or b filename.pas:123 | ||
| + | * Show: inf b | ||
| + | * Disable: dis 1 | ||
| + | * Enble: en 1 | ||
| + | * Delete: d 1 | ||
| + | * Delete all: d b | ||
Revision as of 10:38, 27 March 2008
General tricks
- Some pascal specific patches were excepted; so if possible set language to pascal "set language pascal"
- To get help, use "help <command>" or "help" to see a category list.
- To view datastructures raw, use the "x" command (see "help x")
Examining Type Info
- Q: What function should I use for dumping the type info?
- A: Run x/100c in gdb until it frames. then use 'frame <framenr>' to jump to the correct frame
Inspecting an ansistring
- Q: How do I examine an ansistring?
- A: "x/s <stringname>"
Stop debugger on exception
- Q: How to stop gdb on exception
- A: b fpc_raiseexception
- Q: How to show call stack
- A: bt
Work with breakpoints
- Add: b TObject__Method or b filename.pas:123
- Show: inf b
- Disable: dis 1
- Enble: en 1
- Delete: d 1
- Delete all: d b
