The dtrace(1M) manpage seems to be incorrect, it states:
-32 | -64
The D compiler produces programs using the native data
model of the operating system kernel. You can use the
isainfo -b command to determine the current operating
system data model. If the -32 option is specified,
dtrace forces the D compiler to compile a D program
using the 32-bit data model. If the -64 option is speci-
fied, dtrace forces the D compiler to compile a D pro-
gram using the 64-bit data model. These options are typ-
ically not required as dtrace selects the native data
model as the default. The data model affects the sizes
of integer types and other language properties. D pro-
grams compiled for either data model can be executed on
both 32-bit and 64-bit kernels. The -32 and -64 options
also determine the ELF file format (ELF32 or ELF64) pro-
duced by the -G option.
If I read this correctly then trying doing "dtrace -G -o foo ..." will default
to being 32-bit on a 32-bit system and 64-bit on a 64-bit system. That does not
seem to be the case however - it always seems to do a 32-bit build if -64 is
not specified.
Further, on systems where bug 6456626 has been fixed, -G will try to guess
whether to do 32-bit or 64-bit compile and so the docs need to be updated to
reflect this as well.
Cheers,
David Holmes
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