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whatisdot
Joined: 07 Apr 2008
Posts: 43
Location: Purdue University, USA
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 Posted: Fri May 02, 2008 10:13 am Post subject: [in-charge] [not-in-charge] problems linking C++ files |
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Hey guys. I'm having a problem with compiling code. I have browsed the threads about compiling, but most of them are two to three years old and don't really supply much help. I have had no problems getting C code to compile and link, but I am having major problems getting C++ code to link. I have messed around with the Makefiles and gotten it to the point where I have hit a brick wall. It appears that the compiler recognizes the classes, but when a call is made to their functions, it doesn't like it and gives me this error.
| Code: |
ee-gcc -mno-crt0 -T/usr/local/ps2dev/ps2sdk/ee/startup/linkfile -L/usr/local/ps2dev/ps2sdk/ee/lib \
-o pclis.elf /usr/local/ps2dev/ps2sdk/ee/startup/crt0.o linked_list.o tokenizer.o shell.o pclis.o -lkbd -ldebug -lstdc++ -lc -lkernel
shell.o(.text+0x10): In function `Shell::Shell[not-in-charge]()':
shell.cc: undefined reference to `Tokenizer::Tokenizer[in-charge]()'
shell.o(.text+0x64):shell.cc: undefined reference to `Tokenizer::~Tokenizer [in-charge]()'
shell.o(.text+0x88): In function `Shell::Shell[in-charge]()':
shell.cc: undefined reference to `Tokenizer::Tokenizer[in-charge]()'
shell.o(.text+0xdc):shell.cc: undefined reference to `Tokenizer::~Tokenizer [in-charge]()'
shell.o(.text+0x10c): In function `Shell::~Shell [not-in-charge]()':
shell.cc: undefined reference to `Tokenizer::~Tokenizer [in-charge]()'
shell.o(.text+0x144): In function `Shell::~Shell [in-charge]()':
shell.cc: undefined reference to `Tokenizer::~Tokenizer [in-charge]()'
collect2: ld returned 1 exit status
make: *** [pclis.elf] Error 1
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So what is up with the whole "[in-charge]" "[not-in-charge]" thing??? I did some Google searches, but they all came back saying something like "you probably have a linking error" which I already know. How can I fix this? If you want to see my makefile:
MAKEFILE
| Code: |
EE_BIN = pclis.elf
EE_OBJS = linked_list.o tokenizer.o shell.o pclis.o
EE_LIBS = -lkbd -ldebug -lstdc++
all: $(EE_BIN)
clean:
rm -f *.o *.elf *.a
include $(PS2SDK)/samples/Makefile.pref
include $(PS2SDK)/samples/Makefile.eeglobal
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"A witty saying proves nothing."
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Last edited by whatisdot on Sat May 03, 2008 8:07 am; edited 1 time in total |
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ragnarok2040
Joined: 09 Aug 2006
Posts: 230
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| Posted: Fri May 02, 2008 2:24 pm Post subject: |
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| You could try using Makefile.eeglobal_cpp which uses the g++ compiler as well as the appropriate CPPFLAGS and libraries as well as compiling and linking rules. The in-charge/not-in-charge messages are from a __in_chrg parameter passed to objects for exception handling so they point to another object instead of being allocated on the heap when they're thrown, I think. At least that's what I gleaned from my google search :D. |
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whatisdot
Joined: 07 Apr 2008
Posts: 43
Location: Purdue University, USA
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| Posted: Sat May 03, 2008 5:53 am Post subject: |
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Everything appears to compile correctly when I make an ERL... I tried using the different CPP options in the Makefiles, but I can't get the darn thing to make an ELF. From the examples, I can only see C++ being used with ERL files...
Maybe I'm asking the wrong question. Is it even possible to code in C++ and compile an ELF file from it? I haven't seen any simple examples of it.
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"A witty saying proves nothing."
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Lukasz
Joined: 19 Jan 2004
Posts: 248
Location: Denmark
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| Posted: Sat May 03, 2008 6:48 am Post subject: |
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Simple C++ sample
Makefile
| Code: | EE_BIN = main.elf
EE_OBJS = main.o
all: $(EE_BIN)
clean:
rm -f $(EE_BIN) $(EE_OBJS)
run: all
ps2client execee host:$(EE_BIN)
reset:
ps2client reset
include $(PS2SDK)/samples/Makefile.pref
include $(PS2SDK)/samples/Makefile.eeglobal_cpp |
main.cpp
| Code: | #include <stdio.h>
class Hello
{
public:
void Print()
{
printf("Hello C++");
}
};
int main()
{
Hello hello;
hello.Print();
return 0;
} |
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Lukasz.dk |
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whatisdot
Joined: 07 Apr 2008
Posts: 43
Location: Purdue University, USA
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| Posted: Sat May 03, 2008 7:25 am Post subject: |
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Lukasz,
You're the man!
=) <thumbs up>
What a difference a file extension makes. Change *.cc to *.cpp and suddenly everything works.
C++ will work as long as all the classes are defined in the same file. I'm now trying to figure out how to link multiple files together...
_________________
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"A witty saying proves nothing."
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