Re: [Progress] Tiny GCC: Pure, Unadulterated, Object Code

[Michael Witten <mfwitten at MIT dot EDU>]

On 25 Jan 2008, at 6:11 PM, Michael Witten wrote:

> On 25 Jan 2008, at 8:16 AM, Michael Witten wrote:
>
> > On 24 Jan 2008, at 7:20 AM, Brian Dessent wrote:
> >
> > > Michael Witten wrote:
> > >
> > > > Can I build gcc in this way?
> > > >
> > > > I've been trying for quite some time now to achieve such a
> > > > stripped down gcc, but it would seem that the gcc build
> > > > process insists on building these libraries, which I think
> > > > is wholly unnecessary.
> > >
> > > You might be able to approximate this by "make all-gcc" and then  
> > > "make
> > > install-gcc" (or just manually copying the xgcc to the destination.)
> >
> > I'm a little uncomfortable just taking the xgcc that's left over when
> > the build fails.
>
> I apologize.
>
>
> For some reason, when I tried
>
> 	make all-gcc
>
> the build failed.

Aha!

Apparently the build DOES FAIL when building on Mac OS X 10.5 (darwin  
9.1.0)
for the PowerPC (there is no problem with the x86 version):

	cc -c   -g -O2  -DIN_GCC -DCROSS_COMPILE  -W -Wall -Wwrite-strings - 
Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Wno- 
variadic-macros -Wold-style-definition -Wmissing-format-attribute    - 
DHAVE_CONFIG_H -I. -I. -I../../src/gcc -I../../src/gcc/. -I../../src/ 
gcc/../include -I../../src/gcc/../libcpp/include     -I. -I. -I../../ 
src/gcc -I../../src/gcc/. -I../../src/gcc/../include -I../../src/ 
gcc/../libcpp/include  ../../src/gcc/config/rs6000/host-darwin.c -o  
host-ppc-darwin.o
	../../src/gcc/config/rs6000/host-darwin.c:38: warning: ‘struct  
sigaltstack’ declared inside parameter list
	../../src/gcc/config/rs6000/host-darwin.c:38: warning: its scope is  
only this definition or declaration, which is probably not what you want
	../../src/gcc/config/rs6000/host-darwin.c:38: error: conflicting  
types for ‘sigaltstack’
	/usr/include/signal.h:89: error: previous declaration of  
‘sigaltstack’ was here
	../../src/gcc/config/rs6000/host-darwin.c: In function ‘segv_handler’:
	../../src/gcc/config/rs6000/host-darwin.c:71: error: ‘struct  
__darwin_mcontext’ has no member named ‘ss’
	../../src/gcc/config/rs6000/host-darwin.c:120: error: ‘struct  
__darwin_mcontext’ has no member named ‘es’
	../../src/gcc/config/rs6000/host-darwin.c:120: error: ‘struct  
__darwin_mcontext’ has no member named ‘ss’
	../../src/gcc/config/rs6000/host-darwin.c: In function  
‘darwin_rs6000_extra_signals’:
	../../src/gcc/config/rs6000/host-darwin.c:134: warning: passing  
argument 1 of ‘sigaltstack’ from incompatible pointer type
	make[1]: *** [host-ppc-darwin.o] Error 1
	make[1]: *** Waiting for unfinished jobs....
	make: *** [all-gcc] Error 2

It can be compiled thusly:

	MACOSX_DEPLOYMENT_TARGET=10.4 make all-gcc