gmp 4.3.1 failed cross compile for mingw-w64
drangon.zhou at gmail.com
Sat May 30 03:27:45 CEST 2009
2009/5/30 Torbjorn Granlund <tg at gmplib.org>:
> zhou drangon <drangon.zhou at gmail.com> writes:
> $ /compile/mingw/cross/bin/x86_64-pc-mingw32-gcc -v
> Using built-in specs.
> Target: x86_64-pc-mingw32
> I don't know much about the target platform.
> Your subject line talks about mingw-w64, then you have set the target as
> mingw32. Even of the names are not entirely symmetric, presumably they
> are intended to be, and refer to a 64-bit and 32-bit Windos ABI,
yes, I set the target as mingw32, but add one more line in configure file to
make it work under mingw-w64.
case $host in
This simply is a trick, and with this modification, I can cross compile
gmp-4.2.4 and gmp-4.3.0 successfuly, and the library work well under
> The 32-bit ABI is known to work, but I am not aware of any port of GMP
> to any 64-bit Windos ABI.
I think this is not the 64-bit Windows ABI problem. gmp-4.3.0 can be
Changes from gmp-4.3.0 to gmp-4.3.1 is little, mostly in
>From the error message, it seems it's the x86_64 assemble language problem.
/compile/mingw/cross/bin/x86_64-pc-mingw32-gcc -c -DHAVE_CONFIG_H -I.
-I../../gmp-4.3.1/mpn -I.. -D__GMP_WITHIN_GMP -I../../gmp-4.3.1
-DOPERATION_sqr_basecase -g -pipe tmp-sqr_basecase.s -o sqr_basecase.o
tmp-sqr_basecase.s: Assembler messages:
tmp-sqr_basecase.s:124: Error: junk at end of line, first unrecognized
character is `,'
116 mov %edx, %r11d
117 mov %edx, %ecx
118 and $3, %ecx
119 lea 4(%rcx), %rbx
120 cmp $4, %edx
121 cmovg %rbx, %rcx
122 lea Ljmptab(%rip), %rax
123 jmp *(%rax,%rcx,8)
124 .section .data.rel.ro.local,"aw", at progbits
125 .align 8, 0x90
127 .quad L4
128 .quad L1
129 .quad L2
130 .quad L3
> If mingw-w64/mingw64 is to use the standard x86_64 calling conventions,
> then porting should not be terribly difficult. Porting to Microsoft's
> 64-bit ABI will be much harder, since they changed anything they could
> change, compared to the x86_64 standard calling conventions.
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mingw stuff : http://www.drangon.org/mingw/
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