forums.ps2dev.org

Hello, trying to compile a c++ app, upon link I get the following:

/cygdrive/p/ps2dev/setup/gcc/ee/bin/../lib/gcc-lib/ee/3.2.2/../../../../ee/lib/libc.a(unlinkr.o)(.text+0x14): In function `_unlink_r':
../../../../../newlib/libc/reent/unlinkr.c:54: undefined reference to `unlink'
/cygdrive/p/ps2dev/setup/gcc/ee/bin/../lib/gcc-lib/ee/3.2.2/../../../../ee/lib/libc.a(linkr.o)(.text+0x1c): In function `_link_r':
../../../../../newlib/libc/reent/linkr.c:61: undefined reference to `link'


Where are those functions defined?
I am currently including -lc -lkernel -lsyscall in link options.
Also tried adding all them options twice as -lc -lkernel -lsyscall -lc -lkernel -lsyscall .

Thanks.

I'm trying also to use init_scr() and scr_printf() functions, and gives me the same problem:

../Test.cpp: undefined reference to `init_scr()'
./Test.o(.text+0x8c):../Test.cpp: undefined reference to `scr_printf(char const*, ...)'

Doing an objdump, I've seen these functions are in libkernel, so why does it give me this error?

init_scr and scr_printf are in -ldebug

as for your first post... you said c++? .. try adding -lg after -lc

My binary sdk doesn't have a libdebug.a, nor a debug.h.
init_scrand scr_printf are declared in kernel.h

Also, adding -lg after -lc (or before that) doesn't seem to work. :(

Something else I could try?


Note: In my binary distro, doing an objdump on kernel shows:

$ ../../../../gcc/ee/bin/ee-objdump.exe -x ../../../../ps2lib/ee/lib/libkernel.a | grep scr_printf
00000328 g F .text 000001dc scr_printf


$ ../../../../gcc/ee/bin/ee-objdump.exe -x libc.a | grep link
linkr.o: file format elf32-littlemips
rw-r--r-- 1000/513 17100 Jun 16 19:15 2004 linkr.o
00000000 g F .text 00000054 _link_r
00000000 *UND* 00000000 link
0000001c R_MIPS_26 link
00000000 *UND* 00000000 _unlink_r
00000008 R_MIPS_26 _unlink_r
00000000 *UND* 00000000 _link_r
00000000 *UND* 00000000 _unlink_r
0000001c R_MIPS_26 _link_r
00000030 R_MIPS_26 _unlink_r
unlinkr.o: file format elf32-littlemips
rw-r--r-- 1000/513 17264 Jun 16 19:15 2004 unlinkr.o
00000000 g F .text 0000004c _unlink_r
00000000 *UND* 00000000 unlink
00000014 R_MIPS_26 unlink

libdebug is part of ps2sdk, if you don't have it then your install is broken.

People should STOP trying to do the banz0red multiple lib linking order crap.

(Like having -lc -lkernel -lc -lsyscalls -lkernel etc to fix unresolved symbol issues)

The way to resolve this is NOT by putting them over and over, but by using --start-group and --end-group.

For example, in your makefile do:

EE_LIBS = -Xlinker --start-group

EE_LIBS += -lgcc -lm -lgskit -ldmakit -lkernel -lc -lsyscall -ldebug

EE_LIBS += -Xlinker --end-group

Note that each lib is only used one.

Also, the -Xlinker part is VERY important.

If you are linking using GCC and not ld itself, you need -Xlinker to get the --start/end-group flags to the linker itself. Remeber that GCC is a frontend, not the actual workhorse.