====== Differences ====== This shows you the differences between two versions of the page.
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dev:gdbstub [2010/03/28 21:22] stefanha Update qemu.org link |
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| The ''.tmp'' file must correspond to your gPXE image. For example, ''gpxe.dsk'' -> ''gpxe.dsk.tmp'', ''gpxe.pxe'' -> ''gpxe.pxe.tmp'', and ''gpxe.usb'' -> ''gpxe.hd.tmp''. | The ''.tmp'' file must correspond to your gPXE image. For example, ''gpxe.dsk'' -> ''gpxe.dsk.tmp'', ''gpxe.pxe'' -> ''gpxe.pxe.tmp'', and ''gpxe.usb'' -> ''gpxe.hd.tmp''. | ||
| - | Next you should set up the serial port in GDB if you are debugging via serial. The ''set remotebaud N'' command is used to set the serial port baud rate to ''N''. See [[http://sourceware.org/gdb/current/onlinedocs/gdb_18.html#SEC173|Remote Configuration]] in the GDB Manual. | + | Next you should set up the serial port in GDB if you are debugging via serial. The ''set remotebaud N'' command is used to set the serial port baud rate to ''N''. See [[http://sourceware.org/gdb/current/onlinedocs/gdb/Remote-Configuration.html#Remote-Configuration|Remote Configuration]] in the GDB Manual. |
| Now connect to gPXE, which is already waiting since we entered the ''gdbstub'' command in the gPXE shell: | Now connect to gPXE, which is already waiting since we entered the ''gdbstub'' command in the gPXE shell: | ||
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| * **CPU registers** (''i r'') shows many but not all of the registers. | * **CPU registers** (''i r'') shows many but not all of the registers. | ||
| - | <code> | ||
| - | TODO | ||
| - | </code> | ||
| - | * **Print** (''p'') shows the value of program variables and arbitrary expressions in C-like syntax (see [[http://sourceware.org/gdb/current/onlinedocs/gdb_9.html#SEC58|GDB Manual]]). | + | * **Print** (''p'') shows the value of program variables and arbitrary expressions in C-like syntax (see [[http://sourceware.org/gdb/current/onlinedocs/gdb/Data.html|GDB Manual]]). |
| <code> | <code> | ||
| (gdb) p response | (gdb) p response | ||
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| ===== GDB documentation ===== | ===== GDB documentation ===== | ||
| - | * [[http://sourceware.org/gdb/current/onlinedocs/gdb_toc.html|Debugging with GDB (official manual)]] | + | * [[http://sourceware.org/gdb/current/onlinedocs/gdb/index.html|Debugging with GDB (official manual)]] |
| * [[http://darkdust.net/files/GDB%20Cheat%20Sheet.pdf|A cheatsheet]], note that there are several others [[http://google.com/search?q=gdb+cheat+sheet|available]]. | * [[http://darkdust.net/files/GDB%20Cheat%20Sheet.pdf|A cheatsheet]], note that there are several others [[http://google.com/search?q=gdb+cheat+sheet|available]]. | ||
| - | ===== Getting help ===== | + | |
| - | You can email the [[https://lists.sourceforge.net/lists/listinfo/etherboot-developers|Etherboot-Developers]] list or ask on the [[http://www.etherboot.org/wiki/contact|IRC channel]]. | + | |
