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Diffstat (limited to 'docs/system/gdb.rst')
| -rw-r--r-- | docs/system/gdb.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/docs/system/gdb.rst b/docs/system/gdb.rst index 72b1e68..0bb1bed 100644 --- a/docs/system/gdb.rst +++ b/docs/system/gdb.rst @@ -45,7 +45,11 @@ Here are some useful tips in order to use gdb on system code: 3. Use ``set architecture i8086`` to dump 16 bit code. Then use ``x/10i $cs*16+$eip`` to dump the code at the PC position. -Advanced debugging options: +Advanced debugging options +========================== + +Changing single-stepping behaviour +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The default single stepping behavior is step with the IRQs and timer service routines off. It is set this way because when gdb executes a @@ -88,6 +92,8 @@ three commands you can query and set the single step behavior: sending: "qemu.sstep=0x5" received: "OK" +Examining physical memory +^^^^^^^^^^^^^^^^^^^^^^^^^ Another feature that QEMU gdbstub provides is to toggle the memory GDB works with, by default GDB will show the current process memory respecting |