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[GDB] Remote debugging over UDP

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This commit implements GDB over UDP.  Using UDP is more complex than
serial and has required some restructuring.

The GDB stub is now built using one or both of GDBSERIAL and GDBUDP
config.h options.

To enter the debugger, execute the gPXE shell command:
gdbstub <transport> [<options>...]

Where <transport> is "serial" or "udp".  For "udp", the name of a
configured network device is required:
gdbstub udp net0

The GDB stub listens on UDP port 43770 by default.
This commit is contained in:
Stefan Hajnoczi
2008-06-11 12:12:46 +01:00
committed by Michael Brown
parent 9ec3ff95f0
commit 6e670b5f38
8 changed files with 501 additions and 50 deletions
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4
src/config.h
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@@ -163,7 +163,9 @@
#undef BUILD_ID /* Include a custom build ID string,
* e.g "test-foo" */
#undef NULL_TRAP /* Attempt to catch NULL function calls */
#undef GDBSTUB /* Remote GDB debugging */
#undef GDBSERIAL /* Remote GDB debugging over serial */
#undef GDBUDP /* Remote GDB debugging over UDP
* (both may be set) */
/* @END general.h */