USB GDB Server

[Anonymous]

I have a program that starts a USB GDB Server for a portable device (PSP). I can connect to it and debug through the command prompt like so:

path-to-gdbpsp-gdb.exe path-to-elfhello_world.elf
*gdb starts up*
(gdb) target remote :10001
(gdb) continue

Is it possible to start this process with VisualGDB so that I can use the VS debugger rather than the command prompt?

I’ve set up a MinGW project using a custom toolchain. I’ve changed debug settings to start GDB in “Custom mode” with the launch command above. The target selection command is also identical to the above example. Compilation is working fine, but GDB never responds when the debugger starts.

[drakeh]

After enabling the diagnostic logs I can see that gdb doesn’t recognize any commands passed to it besides “target remote :10001” which works but VS just reports it as another command that won’t respond.

C:pspsdkbinpsp-gdb.exe "C:UsersDrakeDocumentsVisual Studio 2012ProjectsMultiplatformPSPLibhello_world.elf"
-list-features
GNU gdb 6.8
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 

This is free software: you are free to change and redistribute it.

There is NO WARRANTY, to the extent permitted by law.  Type "show copying"

and "show warranty" for details.

This GDB was configured as "--host=i686-pc-mingw32 --target=psp"...

Undefined command: "-list-features".  Try "help".

-gdb-set stop-on-solib-events 1

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-gdb-set".  Try "help".

-data-list-register-names

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-data-list-register-names".  Try "help".

-gdb-set disassembly-flavor intel

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-gdb-set".  Try "help".

-gdb-set print demangle off

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-gdb-set".  Try "help".

-gdb-version

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-gdb-version".  Try "help".

-gdb-set new-console on

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-gdb-set".  Try "help".

target remote :10001

Quit (expect signal SIGINT when the program is resumed)

[New Thread 0]

_start (args=0, argp=0x0) at ../../../../pspsdk/src/startup/crt0_prx.c:109

in ../../../../pspsdk/src/startup/crt0_prx.c

Current language:  auto; currently c

109	../../../../pspsdk/src/startup/crt0_prx.c: No such file or directory.

-exec-continue

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-exec-continue".  Try "help".

-thread-select 1

Quit (expect signal SIGINT when the program is resumed)

Undefined command: "-thread-select".  Try "help".

Can I customize which commands are sent to gdb? Also, why can’t I see any of this info in the gdb session panel in VS?

[ket]

Hi,

VisualGDB uses the machine interface when issuing commands to gdb. Make sure that you are starting gdb with the argument “–interpreter mi”.
You can see the full gdb log also from the GDB Session window, just set the filter above to “All GDB interaction”, the content of the log is usually filtered because it provides a lot of output.

[drakeh]

“–interpreter mi” did the trick, thank you!

[Author]

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