questions about debug with psplink[solved]

coolspace · Post by **coolspace** » Sun Jan 06, 2008 1:03 am

My psp is slim with 3.71m33-3

I have setted up the psplink
and then I run the usbhostfs_pc.exe on pc，and pspsh on pc
then I typed

Code: Select all

debug xxx.elf

And start a new command window,typed

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psp-gdb xxx.elf

and then
target remote localhost:10001

but I got this error

(gdb) target remote localhost:10001
Remote debugging using localhost:10001
Ignoring packet error, continuing...
warning: unrecognized item "timeout" in "qSupported" response

So I changed the xxx.elf to xxx.prx
this time,it run well,but show like this

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&#91;New Thread 0&#93;
0x088043ac in ?? &#40;&#41;
&#40;gdb&#41; l
No symbol table is loaded.  Use the "file" command.

I have already used -g in the makefile,but why this happened??
From the psplink_manual,it said that use debug program.elf, but this did't work.
Can anyone help me?

This question has been solved.
When using pspsh to debug your psp homebrew,you can debug prx file in pspsh and load elf file in psp-gdb

coolspace · Post by **coolspace** » Sun Jan 06, 2008 2:37 pm

Can anyone help me??
Or the psplinkusb does not work well on 3.71??
Or the psp-gdb can only debug elf files??

Compare the files that use -g option and don't use -g option, the only difference is elf file, but on 3.71, psplinkusb can't work well with elf file.
What can i do?

snow · Post by **snow** » Sun Jan 06, 2008 3:57 pm

Sorry, I'm somewhat newb material but I think I remember reading that you debug PRX files not ELFs? Put BUILD_PRX=1 into your makefile and rebuild. Try debugging against the PRX file that's generated.

coolspace · Post by **coolspace** » Sun Jan 06, 2008 4:05 pm

snow wrote:Sorry, I'm somewhat newb material but I think I remember reading that you debug PRX files not ELFs? Put BUILD_PRX=1 into your makefile and rebuild. Try debugging against the PRX file that's generated.

I've done this.
BUILD_PRX=1 into my makefile
But the prx file don't have the debug info in it.
I think the debug info is in the elf file,but on 3.71, psplinkusb can't run elf file.

snow · Post by **snow** » Sun Jan 06, 2008 4:10 pm

Do a clean and build (if you haven't already). That's how I'm debugging and it works fine.

coolspace · Post by **coolspace** » Sun Jan 06, 2008 4:20 pm

snow wrote:Do a clean and build (if you haven't already). That's how I'm debugging and it works fine.

yes,I'v typed "make clean" before i made the prx again.

coolspace · Post by **coolspace** » Sun Jan 06, 2008 4:26 pm

And this is my makefile

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TARGET = test
OBJS = main.o file.o

BUILD_PRX = 1

PSP_FW_VERSION=371
INCDIR = 
CFLAGS = -g -O2 -G0  -Wall -DDEVHOOK -DPSPFW3XX
CXXFLAGS = $&#40;CFLAGS&#41; -fno-exceptions -fno-rtti 
ASFLAGS = $&#40;CFLAGS&#41;

LIBDIR =
LIBS =-lpspaudiocodec -lpspusb -lpspusbstor
LDFLAGS = 
# -lpspglue -lpsplibc -lpsppower


PSPSDK=$&#40;shell psp-config --pspsdk-path&#41;
include $&#40;PSPSDK&#41;/lib/build_prx.mak

After I typed "debug test.prx" in pspsh,then I open a new cygwin window,and typed "psp-gdb test.prx".
But I got this message and i can't use list command

This GDB was configured as "--host=i686-pc-mingw32 --target=psp"...
(no debugging symbols found)
(gdb) target remote localhost:10001
Remote debugging using localhost:10001
[New Thread 0]
0x08804300 in ?? ()
(gdb) list
No symbol table is loaded. Use the "file" command.

F@T3oYCG · Post by **F@T3oYCG** » Sun Jan 06, 2008 9:44 pm

dont you have to use the windows cmd with psp link ???

coolspace · Post by **coolspace** » Sun Jan 06, 2008 10:38 pm

F@T3oYCG wrote:dont you have to use the windows cmd with psp link ???

I use msys instead of cygwin for psplinkusb and pspsh

Cpasjuste · Post by **Cpasjuste** » Mon Jan 07, 2008 12:30 am

I had the same problem.

In psplink, load the prx, but on your computer load the unstripped elf.

psplink ; debug xxx.prx
computer : psp-gdb xxx.elf

Say us if it worked.

coolspace · Post by **coolspace** » Fri Jan 11, 2008 3:08 pm

Cpasjuste wrote:I had the same problem.

In psplink, load the prx, but on your computer load the unstripped elf.

psplink ; debug xxx.prx
computer : psp-gdb xxx.elf

Say us if it worked.

Thanks,it works fine

snowsquirrel · Post by **snowsquirrel** » Thu Apr 03, 2008 6:39 am

This thread helped me in that it made me realized that I am supposed to call psp-gdb on the elf, not the prx.

But now, I get an error when I try to 'start' or 'run' the program.

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d&#58;\psp_project1\build\staged>psp-gdb debug_game_stripped.elf
GNU gdb 6.7.1
Copyright &#40;C&#41; 2007 Free Software Foundation, Inc.
License GPLv3+&#58; GNU GPL version 3 or later <http&#58;//gnu.org/licenses/gpl.html>
This is free software&#58; 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"...
&#40;gdb&#41; target remote localhost&#58;10001
Remote debugging using localhost&#58;10001
&#91;New Thread 0&#93;
_start &#40;args=0, argp=0x0&#41; at crt0_prx.c&#58;109
109     crt0_prx.c&#58; No such file or directory.
        in crt0_prx.c
Current language&#58;  auto; currently c
&#40;gdb&#41; start
Breakpoint 1 at 0x8806024&#58; file src/main.cpp, line 47.
Starting program&#58; d&#58;\other_code\home_p4\psp_project1\build\staged/debug_game_stripped.elf
Don't know how to run.  Try "help target".
&#40;gdb&#41;

What am I doing wrong here?
~S