Re: gcc 2.95.2
>>>>> Florian Lohoff writes:
> Hi,
> i tried to build the gcc 2.95.2 from plain source.
> It basically builds but fails the tests afterwards - The tests say
> that it is not capable of generating working code. I wanted to try
> to compile the latest binutils with that gcc but it seems the configure
> is not able to determin the system type (although running config.guess
> is working correctly) ...
You need at least the following patches (the last one is for
config/mips/linux.h) which have been applied to the CVS version of gcc
already (get them from the current CVS version):
Tue Sep 14 03:58:44 1999 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* configure.in: Add crtbeginS.o, crtendS.o for mips-linux; add
thread support.
* configure: Rebuilt.
1999-08-20 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* linux.h (LIB_SPEC): Added.
This should be enough to get a working compiler - *BUT* this isn't
enough. Ralf Baechle told me to not compile a kernel with it -
there're still some things missings. It's a pity that Ralf's patches
for MIPS-Linux have never been integrated into gcc. I would really
appreciate if gcc 2.96 would work out of the box (without further
patches) for mips-linux - but until then somebody has to generate
patches and get them integrated.
Andreas
P.S. Here's one more patch which is neccessary but hasn't been added
to gcc yet:
CPP_PREDEFINES isn't set in mips/linux.h and therefore misses at least
"-Dlinux". I'm appending a patch which defines CPP_PREDEFINES to
those values which are AFAIK at least needed. I might have missed
some.
1999-08-22 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* config/mips/linux.h (CPP_PREDEFINES): Define for little and big
endian machines.
--- linux.h.~1~ Sat Aug 21 11:56:20 1999
+++ linux.h Sun Aug 22 10:41:11 1999
@@ -72,6 +72,15 @@
%{!dynamic-linker:-dynamic-linker /lib/ld.so.1}} \
%{static:-static}}}"
+/* Specify predefined symbols in preprocessor. */
+#undef CPP_PREDEFINES
+#if TARGET_ENDIAN_DEFAULT == 0
+# define CPP_PREDEFINES "\
+-Dunix -Dmips -DR3000 -DMIPSEL -Dlinux -Asystem(posix) -Acpu(mips) -Amachine(mips)"
+#else
+# define CPP_PREDEFINES "\
+-Dunix -Dmips -DR3000 -DMIPSEB -Dlinux -Asystem(posix) -Acpu(mips) -Amachine(mips)"
+#endif
#undef SUBTARGET_ASM_SPEC
#define SUBTARGET_ASM_SPEC "-KPIC"
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.rhein-neckar.de
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