[fpc-pascal] Size of program vs library ?

[fredvs]

Michael Van Canneyt wrote
> On Mon, 15 May 2017, fredvs wrote:
> 
>> fredvs wrote
>>> Hello.
>>> 
>>> Sorry to come back with this story but there are (good) news.
>>> 
>>> Using 
>> *
>>> --gc-sections
>> *
>>>  makes the library smartlinked.
>>> 
>>> So the question is:
>>> 
>>> Why FPC does not provide 
>> *
>>> --gc-sections
>> *
>>>  to the linker with the -XX paramer for libraries ? (Bug ?)
>>> 
>>> Fre;D
>>
>> Nobody uses fpc library here ?
>>
>> Strange that a (big) problem with maybe a solution does not interest
>> anybody.
> 
> There is no problem.
> 
>> The size of fpc libraries makes fpc-libraries not usable in a real world.
> 
> Why ?
> 
>>
>> I use some audio C libraries and a fpc library (that only link headers of
>> that C libraries) is 10 times bigger than the C libraries !
>>
>> And when a solution (or bug) is found ---> only silence as answer.
> 
> There is no bug. You are comparing apples with pears.
> 
> A C library in the traditional unix sense is a set of routines that
> requires
> other libraries to run - ultimately requiring libc.
> 
> A FPC library - due to it's windows origings heritage - is more like a
> static program. 
> It's almost 100% standalone, and does not require other libraries to
> function 
> (except the ones you explicitly link in). Inevitably, it is bigger.
> 
> Once dynamic packages are implemented, we can start comparing apples with
> apples, and pears with pears. a dynamic package is more like a C library
> in
> the unix sense. It makes sense to compare those.
> 
> If you want to compare today, you need to add the sizes of all the C
> libraries that are loaded during execution of a C program with the size 
> of an FPC program.
> 
> I think you'll find that the sizes of FPC programs are not so different
> then.
> 
> Just check the size of libc:
> 
> ls /lib/x86_64-linux-gnu/libc-2.19.so -l
> 
> -rwxr-xr-x 1 root root 1853216 Mar 21 20:24
> /lib/x86_64-linux-gnu/libc-2.19.so*
> 
> That is almost 2Mb that is linked in to every C library and program.
> 
> Michael.
> _______________________________________________
> fpc-pascal maillist  -  

> fpc-pascal at .freepascal

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Ha, news, finally.

Huh, did you read my post ?

It talk about smartlinking of libraries that does not work.

After lot of fight, there is a solution: using -*-gc-sections*.

And the question was :

/Why FPC does not provide --gc-sections to the linker with the -XX paramer
for libraries ? (Bug ?) /

Fre;D





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Many thanks ;-)
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