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"Bertin, Philippe" wrote: > > /data/users/phbe/cross/gcc-2.95.3/gcc/xgcc > -B/data/users/phbe/cross/gcc-2.95.3/gcc/ > -B/data/users/phbe/cross/executable/powerpc-elf/bin/ -c -DHAVE_CONFIG_H -g > -O2 -I. -I./../../include vsprintf.c > vsprintf.c: In function `vsprintf': > vsprintf.c:47: structure has no member named `_flag' > vsprintf.c:47: `_IOWRT' undeclared (first use in this function) > vsprintf.c:47: (Each undeclared identifier is reported only once > vsprintf.c:47: for each function it appears in.) > vsprintf.c:47: `_IOSTRG' undeclared (first use in this function) > vsprintf.c:48: structure has no member named `_ptr' > vsprintf.c:49: structure has no member named `_cnt' > make: *** [vsprintf.o] Error 1 Something went wrong in the libiberty-configure, 'vsprintf()' is already included in 'libc.a' from newlib... Using the '--with-newlib' or defining a temporary real target for the produced executables, should enable the libiberty-configure to succeed ok... > extract of failing (cross-)link > bash-2.04$ powerpc-elf-gcc > -Wl,-L~/cross/newlib-1.9.0/powerpc-elf/newlib,-L$prefix/powerpc-elf/lib,-L., > -lgp-new,-lc test.c > /data/users/phbe/cross/executable/powerpc-elf/bin/ld: warning: cannot find > entry symbol _start; defaulting to 01800074 > /var/tmp/ccQpvIvL.o: In function `main': > /var/tmp/ccQpvIvL.o(.text+0x40): undefined reference to `<other library > symbol>' > /var/tmp/ccQpvIvL.o(.text+0x60): undefined reference to `printf' The 'powerpc-elf' probably is, just as the name says, one of those unreal 'elves'... Some, like the 'arm-elf' ('devil' or 'angel' as the target), may be a little more 'real', but always it is more easy to hit to the target if the target is a real one... One can create executables only for a real target, like an opsys or a target board with a known firmware or known I/O-addresses, memory map etc. supported with proper glue routines. Quoting the GCC-manual, "Invoking / Submodel Options / RS6000 and PowerPC Options" : ------------------------------ clip -------------------------------------- -msim On embedded PowerPC systems, assume that the startup module is called sim-crt0.o and that the standard C libraries are libsim.a and libc.a. This is the default for powerpc-*-eabisim. configurations. -mmvme On embedded PowerPC systems, assume that the startup module is called crt0.o and the standard C libraries are libmvme.a and libc.a. -mads On embedded PowerPC systems, assume that the startup module is called crt0.o and the standard C libraries are libads.a and libc.a. -myellowknife On embedded PowerPC systems, assume that the startup module is called crt0.o and the standard C libraries are libyk.a and libc.a. ------------------------------ clip -------------------------------------- The Germans would say something like : "Wenn du willst bin laden, du musst erst deine ziel finden...", so what about using for instance a yellow knife as an temporary goal or as an tool to achieve your goal ? ;-) Using one of these four supported real targets as an temporary one while building GCC, has been a workaround to pass the sanity check in libiberty. A 'make CFLAGS="-msim -g -O2"' has worked around the "C compiler cannot create...", if the '--with-newlib' was forgotten during the main 'configure'. After having newlib built and installed, a powerpc-elf-gcc -msim -O -o hello.x hello.c should produce an PowerPC/ELF executable for the PSIM-simulator coming with GDB from a "Hello World" application... Cheers, Kai ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sourceware.cygnus.com
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