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lantus · Joined: 10 May 2005 Posts: 10

has anyone managed to build a C++ project?

by that i mean as an example take nem's hello world source, rename *.c to *.cpp and link to libSTDC++. I've tried everything and cant get it to link correctly.

anyone have a solution?
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mrbrown · Joined: 17 Jan 2004 Posts: 1536

The short answer is that you can't use libstdc++ on the PSP because in the toolchain nem uses libstdc++ was built for the PS2's EE which has a different executable and instruction format than the PSP. See this thread for details: http://forums.ps2dev.org/viewtopic.php?p=11410#11410

The solution is to roll your own GCC toolchain targetted specifically for the PSP's R4K CPU, or wait for someone else to do it.

t3ddY · Joined: 08 May 2005 Posts: 12 Location: The Netherlands

I managed to get ee-g++ working and make a elf. But the thing was, it didn't run on PSPE and since i don't have a 1.0 jap psp, i couldn't try it myself...

But it's very simple, take the hello world example en compile it with ee-g++... put the xmain in a extern "C" { } if it can't find it and add -fno-exceptions to ee-ld...

Maybe it will run on actual hardware, can't test it from here :(

Treat · Joined: 26 Sep 2004 Posts: 16

it works just fine on hardware

lantus · Joined: 10 May 2005 Posts: 10

excellent thanks for checking it out Treat
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weak · Joined: 13 Jan 2005 Posts: 114 Location: Vienna, Austria

what exactly is the point in compiling the code as C code with g++? (that's what extern "C" does?)

cwbowron · Joined: 06 May 2005 Posts: 76 Location: East Lansing, MI

weak · Joined: 13 Jan 2005 Posts: 114 Location: Vienna, Austria

my bad. thx for the clarification.

t3ddY · Joined: 08 May 2005 Posts: 12 Location: The Netherlands

If you want to check the output, just check the helloworld.map in the mk.bat script... you will see that c++ functionnames will be named differently then c functionnames...

With extern "C" you prevent this.

Zeta · Joined: 09 Jul 2005 Posts: 9

I've been taking a look at the samples from the sdk in svn and in one of my tests I wanted to compile some samples in c++ (it should be just changing the extension to cpp right?). The result was that some projects compiled and linked ok but others (specially when using the psppower lib) wouldn't link but compiled fine. The thing is that it couldn't resolve functions like scePowerIsBatteryExist, scePowerRegisterCallback, etc...
Can somebody tell me what can be happening here? Is it possible that when switching to c++ the declaration of the function is different than the code on the library?
Thank you very much in advance.