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Fucking MingW

Name: Cudder !MhMRSATORI!fR8duoqGZdD/iE5 2012-11-04 9:11

#include <stdio.h>

int main() {
 printf("Hello world!\n");
 return 0;
}


Default MingW compilation+link size: 47KB
Best MingW compilation+link size: 8KB

Default MSVC compilation+link size: 40KB
Best MSVC compilation+link size: 1KB

After postprocessing:
MingW (using MS's linker and libs): 1594 bytes
MSVC: 624 bytes

What the fuck? Am I missing something here?

MingW optimised command line (compile only):
gcc -nostdlib -Os -c -s -o hello.obj hello.c -Wl,--gc-sections,--section-alignment,4096,--file-alignment,512

MingW link command line:
link hello.obj msvcrtlib mainstub.obj /align:4096 /filealign:512 /entry:main /merge:.rdata=.text /merge:.eh_fram=.text /merge:.text.st=.text /section:.text,EWR /stub:mzstub64.exe

mainstub.obj is a dummy __main because libming32.a which is supposed to contain it also contains __CTOR_LIST_ and some other C++ shit. I'm compiling a C program, with gcc, and they force you to link with a bunch of C++ shit? Are you kidding me?

(Why won't it merge the bloody .eh_fram and .text.st sections?!?! Maybe this is a bug of MS's linker since it merges fine with its own compiler output, but the compiler shouldn't be generating .eh_fram and .text.st anyway!)

Executables for your inspecting:
MingW: http://pastebin.com/vZn5WtMz
MSVC: http://pastebin.com/AV63Hr5x

Therefore, I challenge anyone to come up with a smaller Hello World using MingW, and post the commands you used to do it.

Name: Anonymous 2012-11-07 20:58

>>63,67
I have no idea what you're talking about. Is dynasty some alternate linker or something?
Can you talk about anything besides your ugly x86?
Nope.

http://en.wikipedia.org/wiki/Ming_Dynasty

>>64,66
>> ESP folding — This eliminates the ESP manipulation μops in stack-related
instructions such as PUSH, POP, CALL and RET.

This one reason why I dislike x86: programmer assumptions about the performance characteristics of their code don't hold from one generation to the next.  Notice that ENTER and LEAVE are totally missing from the above list. (Of course, any code that uses those will still run faster on Core than on the 286 it was originally intended to run on, so there is no real practical impact - it's just annoying.)

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