Re: building a mipsel-linux cross-compiler
You may find some clues in my notes at:
http://www.ltc.com/~brad/mips/mips-cross-toolchain/
Regards,
Brad
----- Original Message -----
From: "Geert Uytterhoeven" <geert@linux-m68k.org>
To: <debian-mips@lists.debian.org>
Sent: Monday, February 18, 2002 5:51 AM
Subject: building a mipsel-linux cross-compiler
>
> I'm trying to build a cross-compiler for mipsel-linux on an ia32 box,
using the
> gcc-2.95.4 sources from Debian unstable. I build lots of cross-compilers
in the
> past (for m68k-linux, powerpc-linux, mipsel-linux, m68k-amigaos on
> Linux/{m68k,PPC,ia32) or Solaris/SPARC boxes), but this time I'm really
stuck.
>
> Binutils is the easy part:
>
> % apt-get source binutils
> % cd binutils-2.11.92.0.12.3
> % debian/rules setup
> % cd ..
> % mkdir binutils-mipsel-linux
> % cd binutils-mipsel-linux
> %
../binutils-2.11.92.0.12.3/build-tree/binutils-2.11.92.0.12.3/configure --ta
rget=mipsel-linux
> % make
> % make install (as root)
>
> Glibc includes:
>
> % dpkg -x libc6-dev_2.2.5-3_mipsel.deb libc6
> % cp -a libc6/usr/include /usr/local/mipsel-linux
>
> Gcc is the though part:
>
> % apt-get source gcc-2.95
> % cd gcc-2.95-2.95.4.ds8
> % debian/rules control
> % cd ..
> % patch internals.texi (see patch below)
> % mkdir gcc-mipsel-linux
> % cd gcc-mipsel-linux
> % ../gcc-2.95-2.95.4.ds8/src-native/configure --target=mipsel-linux
> % make LANGUAGES=c
>
> First problem:
>
> | Configuring in mipsel-linux/libiberty
> | configure: error: installation or configuration problem: C compiler
cannot
> | create executables.
>
> Looking at the Makefile, it seems we have a `make cross' now. Try to use
that:
>
> % make cross
>
> Ah, we need some more includes. Why aren't these found?
>
> % cp -a /usr/local/mipsel-linux/include/* mipsel-linux/libio/
> % rm mipsel-linux/libio/libio.h
> % make cross
>
> Conflicting declaration between internal and external includes
>
> % patch mathcalls.h (see patch below)
> % make cross
>
> | mipsel-linux/libiberty: No targets specified and no makefile found.
>
> Libiberty got configured in gcc-mipsel-linux/libiberty instead of
> gcc-mipsel-linux/mipsel-linux/libiberty??
>
> % mv mipsel-linux/libiberty mipsel-linux/libiberty.orig
> % mv libiberty mipsel-linux
> % ( cd mipsel-linux/libiberty;
../../../gcc-2.95-2.95.4.ds8/src-native/libiberty/configure --target=mipsel-
linux)
> % make cross
>
> Conflicting declaration between internal and external includes
>
> % patch string.h (see patch below)
> % make cross
>
> Cross-compiler built! Let's retry with the good old `make LANGUAGES=c':
>
> % make LANGUAGES=c
>
> No changes, let's install (as root)
>
> % make LANGUAGES=c install
>
> | gcc: ../libiberty/libiberty.a: No such file or directory
>
> Ah, it wants the libiberty.a from gcc-mipsel-linux/mipsel-linux/libiberty
> instead of gcc-mipsel-linux/libiberty
>
> % ln -s mipsel-linux/libiberty
> % make LANGUAGES=c install
>
> | configure: error: installation or configuration problem: C compiler
cannot
> | create executables.
> | make[1]: *** [p/rts/Makefile] Error 1
> | make[1]: Leaving directory `/home/geert/src/gcc-mipsel-linux/gcc'
> | make: *** [install-gcc] Error 2
>
> And then I'm really stuck :-( What happened? Building a cross-compiler
used to
> be very simple (configure --target=xxx-linux; make;make install)!
>
> Anyone with a clue? Thanks!
>
> --- gcc-2.95-2.95.4.ds8/src-native/gcc/p/doc/en/internals.texi.orig Sat
Dec 22 12:04:47 2001
> +++ gcc-2.95-2.95.4.ds8/src-native/gcc/p/doc/en/internals.texi Sun Feb 17
14:54:17 2002
> @@ -260,7 +260,7 @@
> ``Syntax diagrams'' are a graphical variant of the Backus-Naur Form.
>
> For details about the ``bison'' language, see
> -@ref{,the Bison documentation,,bison,the Bison manual}. A short overview
> +@ref{the Bison documentation,,bison,the Bison manual}. A short overview
> how to pick up some information you might need for programming follows.
>
> Suppose you have forgotten how a variable is declared in Pascal. After
some
> --- gcc-mipse-linux/mipsel-linux/libio/bits/mathcalls.h.orig Tue Feb 5
02:48:38 2002
> +++ gcc-mipse-linux/mipsel-linux/libio/bits/mathcalls.h Mon Feb 18
11:18:17 2002
> @@ -147,7 +147,7 @@
>
> #if defined __USE_MISC || defined __USE_XOPEN || defined __USE_ISOC99
> /* Return `sqrt(X*X + Y*Y)'. */
> -__MATHCALL (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
> +//__MATHCALL (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
> #endif
>
> #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined
__USE_ISOC99
> --- gcc-mipse-linux/mipsel-linux/libio/string.h.orig Tue Feb 5 02:49:19
2002
> +++ gcc-mipse-linux/mipsel-linux/libio/string.h Mon Feb 18 11:26:58 2002
> @@ -269,8 +269,8 @@
> # endif
>
> /* Compare S1 and S2, ignoring case. */
> -extern int strcasecmp (__const char *__s1, __const char *__s2)
> - __THROW __attribute_pure__;
> +//extern int strcasecmp (__const char *__s1, __const char *__s2)
> +// __THROW __attribute_pure__;
>
> /* Compare no more than N chars of S1 and S2, ignoring case. */
> extern int strncasecmp (__const char *__s1, __const char *__s2, size_t
__n)
>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 --
geert@linux-m68k.org
>
> In personal conversations with technical people, I call myself a hacker.
But
> when I'm talking to journalists I just say "programmer" or something like
that.
> -- Linus Torvalds
>
>
> --
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