| View previous topic :: View next topic |
| Author |
Message |
turkeyman
Joined: 20 Oct 2004
Posts: 75
Location: Brisbane, Australia
|
 Posted: Sat Jul 23, 2005 12:30 pm Post subject: Strange linking problems |
 |
|
| Code: | Linking...
../Fuji/Lib/libFuji_Debug_PSP.a(System_PSP.o): In function `loaderInit()':
System_PSP.cpp:(.text+0x60): undefined reference to `pspSdkInstallNoDeviceCheckPatch'
collect2: ld returned 1 exit status |
Can anyone tell me why i might be getting this error?
heres my command line.. (not working)
psp-gcc.exe $(IntDir)/*.o ../Fuji/Lib/libFuji_$(ConfigurationName).a -LC:\cygwin\usr\local\pspdev\psp\sdk\lib -o$(TargetName).elf -lpspkernel -lpspgu -lpspusb -lpspusbstor -lstdc++ -lm -lpspdebug -lpspdisplay -lpspge -lpspctrl -lc -lpspglue -lc -lpspuser
I am definately linking pspkernel, and the sample ap builds fine.. (using the pspsdk sampel ap makefile)
On an unrelated note (or maybe related, who knows) I'm getting some strange linking problems related to the order i specify libs on the command line..
I noticed this a while back, and i couldnt figure out any logic to it.. So when i had link errors, i just rearranged the order of my -l's on the command line until it links without errors...
This is just weird... Can anyone enlighten me about this weird link order logic that GCC seems to have issues with? |
|
| Back to top |
|
 |
rinco
Joined: 21 Jan 2005
Posts: 255
Location: Canberra, Australia
|
| Posted: Sat Jul 23, 2005 1:10 pm Post subject: |
|
|
i read somewhere that libs cannot depend on libs that precede them.
and once in a while there'll be a need to refer to something twice (probably a cyclic dependency), eg: -lc -lpspglue -lc
but in your case, you have missed -lpspsdk (pspSdk* functions). |
|
| Back to top |
|
|
turkeyman
Joined: 20 Oct 2004
Posts: 75
Location: Brisbane, Australia
|
| Posted: Sat Jul 23, 2005 1:22 pm Post subject: |
|
|
oh oops!! :P
i did too..
thanks for that! :)
sometimes these silly little things just slip by and you need a fresh pair of eyes to pick it :P
interesting with the -lc -lpspglue -lc thing.. i noticed that, and i was wondering what that was about..
i assume that GCC is intelligent enough to not double link libs then? :/
in VC if you link a lib twice, it will give a multiple definitions error..
thanks dude |
|
| Back to top |
|
|
mrbrown
Joined: 17 Jan 2004
Posts: 1536
|
| Posted: Sat Jul 23, 2005 1:39 pm Post subject: |
|
|
| The circular dependency is a mistake I introduced, which I will be fixing shortly. The -lpspglue will also disappear so it will end up being just -lc. However, libc will still depend on -lpspuser. |
|
| Back to top |
|
|
ooPo
Site Admin
Joined: 17 Jan 2004
Posts: 2032
Location: Canada
|
| Posted: Sat Jul 23, 2005 2:12 pm Post subject: |
|
|
The order of linking is such that as it links in each library it will only link in the parts/functions that are required by previously specified libs. This is why you may need to specify a library more than once when two libs depend on each other.
There is a commandline option to just link in everything possible and you can later use psp-strip out the parts you don't need, but that isn't as nice. :) |
|
| Back to top |
|
|
turkeyman
Joined: 20 Oct 2004
Posts: 75
Location: Brisbane, Australia
|
| Posted: Sun Jul 24, 2005 10:29 am Post subject: |
|
|
cool, thats interesting to know
thanks :) |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
