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soc:2008:stefanha:journal:week3 [2008/06/13 07:04] stefanha |
soc:2008:stefanha:journal:week3 [2008/06/16 04:11] stefanha |
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| * [[http://git.etherboot.org/?p=people/stefanha/gpxe.git;a=commit;h=8ec13694a44779156d679af99a104aeb3bbfdb53|[GDB] Zero-extend 16-bit segment registers]] | * [[http://git.etherboot.org/?p=people/stefanha/gpxe.git;a=commit;h=8ec13694a44779156d679af99a104aeb3bbfdb53|[GDB] Zero-extend 16-bit segment registers]] | ||
| + | * [[http://git.etherboot.org/?p=people/stefanha/gpxe.git;a=commit;h=03d22bf5e31348e3f3ede48500c981761f367651|[GDB] UDP clean up and add netdev refcnt]] | ||
| **Segment registers sometimes contained junk values**. The test suite reported that the ''DS'' segment register had the wrong value when running on real hardware. Most of my past development and testing has been in QEMU. | **Segment registers sometimes contained junk values**. The test suite reported that the ''DS'' segment register had the wrong value when running on real hardware. Most of my past development and testing has been in QEMU. | ||
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| Making the merge happen is my immediate goal. An interesting opportunity for another iteration of development is 16-bit real mode debugging. If GDB can hold up to the pressures of real mode, then I will implement stub support. | Making the merge happen is my immediate goal. An interesting opportunity for another iteration of development is 16-bit real mode debugging. If GDB can hold up to the pressures of real mode, then I will implement stub support. | ||
| - | Next steps: | + | ===== Next week ===== |
| - | * Fix netdev reference counting in gdbudp. | + | On to [[.:week4|week 4]]. |
| - | * Choose and document a simple way to manually call into the debugger. | + | |
| - | * Improve flow control so that GDB does not print warnings. | + | |
| - | * Clean up and propose gdbstub2 code for mainline. | + | |
| - | * Update [[:dev:gdbstub|GDB stub page]] and screencast when UDP code is merged into mainline. See [[http://grub.enbug.org/DebuggingWithGDB|GRUB GDB wiki page]] for inspiration. | + | |
| - | * See if GDB supports 16-bit code, and try out real-mode debugging. | + | |
