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From: Adriaan van Os
Subject: -m64 on powerpc-apple-darwin8
Date: 30 Mar 2006, 23:12:22

Waldek Hebisch wrote:

> Adriaan van Os wrote:
>> Now that gpc has preliminary support for gcc-4 (thanks!) I am trying
>> to build a 64-bit libgpc.a for use with -m64 on powerpc-apple-
>> darwin8. This results in an ICE in fname.pas.
>>
>> ../.././xgpc -B../.././  -c -I. -W -Wall -Wmissing-prototypes -
>> Wmissing-declarations -g -O2 -m64   --unit-path=/Users/adriaan/gnu/
>> gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts --automake -
>> DRTS_RELEASE_STRING="'`cat /Users/adriaan/gnu/gpc/gpc-20060325/gcc-4/
>> gcc-4.0.3/gcc/p/rts/rts-version`'" -DGCC_VERSION="'4.0.3'" "/Users/
>> adriaan/gnu/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/random.pas"
>> ../.././xgpc -B../.././  -c -I. -W -Wall -Wmissing-prototypes -
>> Wmissing-declarations -g -O2 -m64   --unit-path=/Users/adriaan/gnu/
>> gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts --automake -
>> DRTS_RELEASE_STRING="'`cat /Users/adriaan/gnu/gpc/gpc-20060325/gcc-4/
>> gcc-4.0.3/gcc/p/rts/rts-version`'" -DGCC_VERSION="'4.0.3'" "/Users/
>> adriaan/gnu/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/fname.pas"
>> /Users/adriaan/gnu/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/
>> fname.pas: In function `InternalFSearch':
>> /Users/adriaan/gnu/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/
>> fname.pas:705: internal compiler error: in output_constant, at
>> varasm.c:3929
>> Please submit a full bug report,
>> with preprocessed source if appropriate.
>> See <URL:http://www.gnu-pascal.de/todo.html> for instructions.
>> make[2]: *** [fname.o] Error 1
>> make[1]: *** [pascal.rts] Error 2
>> make: *** [all-gcc] Error 2
>>
>> It would be nice to have a 64-bit darwin compiler available for
>> download at some point, but it is not urgent.
>>
>
> Again, I can not reproduce the ICE. But I have noticed that I am  
> getting
> ICE when I compile using -m64 flag when there are .gpi files compiled
> using -m32. So, I wonder if you used clean directory for 64-bit  
> compilation
> (it looks that you re-used build directory directory, did you remove  
> old
> .gpi files?).

Thanks for looking into this.

Initially, my attempt to rebuild libgpc.a failed (see below), so I  
tried various ways to build the compiler with -m64 (pass env CC="gcc  
-m64" to configure or add -m64 to CFLAGS during make or make  
bootstrap). This all resulted in the error above (that was in a fresh  
build directory).

However, I now found out why my initial attempt to simply rebuild  
libgpc.a in build/gcc/p/rts failed. I typed

[G5:gcc/p/rts] adriaan% rm *.o *.gpi
[G5:gcc/p/rts] adriaan% make

or

[G5:gcc/p/rts] adriaan% rm *.o *.gpi
[G5:gcc/p/rts] adriaan% make CFLAGS="-O2 -m64"

and this results in

`echo /Users/adriaan/gpc/gpc-20060325/gcc-4/build/gcc/xgcc  
-B/Users/adriaan/gpc/gpc-20060325/gcc-4/build/gcc/  
-B/Developer/Pascal/gpc403d1/powerpc-apple-darwin8/bin/  
-B/Developer/Pascal/gpc403d1/powerpc-apple-darwin8/lib/ -isystem  
/Developer/Pascal/gpc403d1/powerpc-apple-darwin8/include -isystem  
/Developer/Pascal/gpc403d1/powerpc-apple-darwin8/sys-include  | sed  
's,^\([^ ]*[/\][^/\]*\)gcc,\1gpc,;s/^gcc$/gpc/' ` -c -I. -W -Wall  
-Wmissing-prototypes -Wmissing-declarations -O2    
--unit-path=/Users/adriaan/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts  
--automake -DRTS_RELEASE_STRING="'`cat  
/Users/adriaan/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/rts- 
version`'" -DGCC_VERSION="'unknown'" --no-automake  
"/Users/adriaan/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/heap.pas"
/Users/adriaan/gpc/gpc-20060325/gcc-4/gcc-4.0.3/gcc/p/rts/heap.pas:38:  
error: module/unit interface `Error' could not be imported
make: *** [heap.o] Error 1

I should have typed

[G5:gcc/p/rts] adriaan% make clean
[G5:gcc/p/rts] adriaan% make

or

[G5:gcc/p/rts] adriaan% make clean
[G5:gcc/p/rts] adriaan% make CFLAGS="-O2 -m64"

and building a 64-bit libgpc.a works !

With lipo, the 32-bit and 64-bit libgpc.a can be combined into one  
"fat" libgpc.a.

[G5:~/gpc/testgpc/adriaan] adriaan% gpc hello.pas -m64
can't find atom for N_GSYM stabs Fakehighletters:G(0,7) in  
/Developer/Pascal/gpc403d1/lib/gcc/powerpc-apple-darwin8/4.0.3/ 
libgpc.a(rtsc.o)
ld64 failed: in  
/Developer/Pascal/gpc403d1/lib/gcc/powerpc-apple-darwin8/4.0.3/ 
libgcc.a(_fixtfdi.o), not a valid ppc64 mach-o file
collect2: ld returned 1 exit status

So, next I will try to build a 64-bit libgcc and combine the 32-bit and  
64-bit libgcc.a into a "fat" libgcc.a

Regards,

Adriaan van Os

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