[rescue] VAXstation questions
mcguire at neurotica.com
Wed May 14 12:28:21 CDT 2003
On Wednesday, May 14, 2003, at 07:21 AM, Peter Corlett wrote:
>> vlc$ ls -l helloworld
>> -rwxr-xr-x 1 mcguire wheel 3816 May 13 18:57 helloworld
>> vlc$ size helloworld
>> text data bss dec hex filename
>> 1844 260 40 2144 860 helloworld
> Object size tells you nothing, really.
Object size...the size of the resulting executable...tells you
nothing about the instruction set compactness of the target
Other factors come into play as well...the object file format (elf,
a.out, etc), the presence or absence of symbol tables, and (if present)
the length of the symbol names in those symbol tables, as well as the
compiler's code generation efficiency on the architecture in question.
So...Your examples were Linux binaries...I'm not a Linux person and
don't know anything about its executable format, but there is the whole
apple/orange comparison there.
But, within your two examples, while the M68K is a much more
"compiler friendly" CISC architecture, I would fully expect GCC to
produce better code (even though GCC generates fairly decent M68K code)
on x86 than M68K because the GCC team has been wearing "x86 blinders"
for the past several years now...targeting the bulk of their
optimization efforts at that architecture while letting all the modern
My statement was a generalization and a simplification, but it is
still quite correct.
Dave McGuire "They live deeply, these vagabonds."
St. Petersburg, FL -Goro
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