Building RTEMS

[datique at pcs.usp.br (Douglas Atique)]

On Mon, 15 Feb 1999 joel at OARcorp.com wrote:

> 
> On Mon, 15 Feb 1999, Douglas Atique wrote:
> 
> > x86. My target is sparc and the cross toolset seems to compile fine, but
> > when I try to compile and link a little program that uses printf the
> > linker (in my case sparc-rtems-ld) complains about missing symbols. This
> > problem is causing it not to be able to build the RTEMS proper, beside its
> > inability to generate any executables.
> > Anyone has an idea?
> 
> The basic sequence that should work after untar'ing and patching (don't
> forget that part) is:
I patched all distributions according to the Getting started manual.
> 
> ./bit sparc
> ./bit_gdb sparc
> ./bit sparc erc32
I used 
./bit sparc
./bit_rtems sparc (this failed on linking)
./bit_gdb sparc (I expected to find the sis and sis64 executables in the
INSTALL_POINT but didn't)
> 
> If you are using the Solaris patch -- not GNU patch, then it is quite
> possibly that the patch was not applied correctly.  
I am using the GNU patch 2.5. I myself built it, and the path to the GNU
tools is the first on my PATH.
> 
> What symbols are undefined? 
Well, there were many. For example, after executing ./bit sparc I tried to
compile and link a program like this:
test.c
#include <stdio.h>
int main(int argc, char* argv[]) {
	printf("Testing the sparc-on-intel cross-compiler...");
	return 0;
}
Look at its output:



sirius% sparc-rtems-gcc -v -o test test.c
Reading specs from
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/lib/gcc-lib/sparc-rtems/egcs-2.91.57/specs
gcc version egcs-2.91.57 19980901 (egcs-1.1 release)

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/lib/gcc-lib/sparc-rtems/egcs-2.91.57/cpp
-lang-c -v -undef -D__GNUC__=2 -D__GNUC_MINOR__=91 -Dsparc
-D__GCC_NEW_VARARGS__ -Drtems -D__rtems__ -D__sparc__
-D__GCC_NEW_VARARGS__ -D__rtems__ -D__rtems__ -D__sparc -D__rtems
-Asystem(rtems) -Acpu(sparc) -Amachine(sparc) -D__GCC_NEW_VARARGS__
-Acpu(sparc) -Amachine(sparc) test.c /var/tmp/cca911Re.i
GNU CPP version egcs-2.91.57 19980901 (egcs-1.1 release) (sparc)
#include "..." search starts here:
#include <...> search starts here:

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/lib/gcc-lib/sparc-rtems/egcs-2.91.57/include

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/sys-include

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/include
End of search list.

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/lib/gcc-lib/sparc-rtems/egcs-2.91.57/cc1
/var/tmp/cca911Re.i -quiet -dumpbase test.c -version -o
/var/tmp/ccOw0b4K.s
GNU C version egcs-2.91.57 19980901 (egcs-1.1 release) (sparc-rtems)
compiled by GNU C version 2.8.1.

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/bin/as
-o /var/tmp/ccqmhoOq.o /var/tmp/ccOw0b4K.s

/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/lib/gcc-lib/sparc-rtems/egcs-2.91.57/collect2
-e start -dc -dp -o test
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/crt0.o
-L/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/lib/gcc-lib/sparc-rtems/egcs-2.91.57
-L/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib
/var/tmp/ccqmhoOq.o -lgcc -lc -lgcc
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/bin/ld:
warning: cannot find entry symbol start; defaulting to 00002020
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/libc.a(stdio.o):
In function `__sread':
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/stdio/../../../../../src/newlib/libc/stdio/stdio.c:40:
undefined reference to `_read_r'
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/libc.a(stdio.o):
In function `__swrite':
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/stdio/../../../../../src/newlib/libc/stdio/stdio.c:60:
undefined reference to `_lseek_r'
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/stdio/../../../../../src/newlib/libc/stdio/stdio.c:62:
undefined reference to `_write_r'
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/libc.a(stdio.o):
In function `__sseek':
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/stdio/../../../../../src/newlib/libc/stdio/stdio.c:74:
undefined reference to `_lseek_r'
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/libc.a(stdio.o):
In function `__sclose':
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/stdio/../../../../../src/newlib/libc/stdio/stdio.c:91:
undefined reference to `_close_r'
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/libc.a(makebuf.o):
In function `__smakebuf':
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/stdio/../../../../../src/newlib/libc/stdio/makebuf.c:50:
undefined reference to `_fstat_r'
/opt/gnu/rtems/egcs-1.1b-binutils-2.9.1-newlib-1.8.0/sparc-rtems/sparc-rtems/lib/libc.a(isatty.o):
In function `isatty':
/export/home/datique/rtems/tools/build-sparc-tools/sparc-rtems/newlib/libc/posix/../../../../../src/newlib/libc/posix/isatty.c:12:
undefined reference to `fstat'
collect2: ld returned 1 exit status
sirius% 




I am not sure, but it looks like all symbols from the stdio library are
not being resolved.  
> 
> --joel
> Joel Sherrill                    Director of Research & Development
> joel at OARcorp.com                 On-Line Applications Research
> Ask me about RTEMS: a free RTOS  Huntsville AL 35805
>    Support Available             (256) 722-9985
> 
> 
> 
>