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| author | Konstantin Aladyshev <aladyshev22@gmail.com> | 2021-07-19 18:48:06 +0300 |
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| committer | Konstantin Aladyshev <aladyshev22@gmail.com> | 2021-07-19 18:48:06 +0300 |
| commit | b139756457b4ba82db773e0114e0684dc1cefdfe (patch) | |
| tree | 421603e940306ad66f988dc944aea28bc184d849 /Lessons/Lesson_42 | |
| parent | 907a0fc2d8003a1284be8a46340e1acbb6699790 (diff) | |
| download | UEFI-Lessons-b139756457b4ba82db773e0114e0684dc1cefdfe.tar.gz UEFI-Lessons-b139756457b4ba82db773e0114e0684dc1cefdfe.tar.bz2 UEFI-Lessons-b139756457b4ba82db773e0114e0684dc1cefdfe.zip | |
Update GDB cheatsheet
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Diffstat (limited to 'Lessons/Lesson_42')
| -rw-r--r-- | Lessons/Lesson_42/README.md | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Lessons/Lesson_42/README.md b/Lessons/Lesson_42/README.md index 389bf44..1074dfe 100644 --- a/Lessons/Lesson_42/README.md +++ b/Lessons/Lesson_42/README.md @@ -373,6 +373,22 @@ In the end `run_gdb_ovmf.sh` would provide similar `tmux` session. The only diff - `d <number>` - delete breakpoint `<number>` - `c` - continue - `q` - quit GDB +- `Ctrl+p` - previous GDB command in history +- `Ctrl+n` - next GDB command in history +- `Ctrl+x` and `o` - change active window in tui mode + +To print CHAR16 string you can use `x /sh <addr>` command. Here is the example how can you print device path: +``` +(gdb) p ConvertDevicePathToText(DevicePath, 0, 1) +$1 = (CHAR16 *) 0x6d04518 +(gdb) x /sh 0x6d04518 +0x6d04518: u"PciRoot(0x0)/Pci(0x2,0x0)" +``` +You can even do it in one command: +``` +(gdb) x /sh ConvertDevicePathToText(DevicePath, 0, 1) +0x6d02098: u"PciRoot(0x0)/Pci(0x2,0x0)" +``` # Minimal Tmux cheatsheet |