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March 21, 2020 Strip Unused Symbols Ldc + Windows | ||||
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Someone knows how to strip unused symbols on final binary using ldc on windows ? i found this about this topic: https://forum.dlang.org/post/yvmnkvzgoxhcfavjayky@forum.dlang.org that uses --gc-sections and --version-script but this options are not avaliable in windows lld-link |
March 21, 2020 Re: Strip Unused Symbols Ldc + Windows | ||||
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Posted in reply to SrMordred | On Saturday, 21 March 2020 at 01:54:00 UTC, SrMordred wrote:
> Someone knows how to strip unused symbols on final binary using ldc on windows ?
> i found this about this topic:
>
> https://forum.dlang.org/post/yvmnkvzgoxhcfavjayky@forum.dlang.org
>
> that uses --gc-sections and --version-script but this options are not avaliable in windows lld-link
That was about ELF symbol visibility and doesn't apply to Windows at all. - The symbols are stripped by default for Windows targets (/OPT:REF for MS linker/LLD). You can cross-check by disabling via `-disable-linker-strip-dead`.
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March 21, 2020 Re: Strip Unused Symbols Ldc + Windows | ||||
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Posted in reply to kinke | On Saturday, 21 March 2020 at 15:53:53 UTC, kinke wrote: > On Saturday, 21 March 2020 at 01:54:00 UTC, SrMordred wrote: >> Someone knows how to strip unused symbols on final binary using ldc on windows ? >> i found this about this topic: >> >> https://forum.dlang.org/post/yvmnkvzgoxhcfavjayky@forum.dlang.org >> >> that uses --gc-sections and --version-script but this options are not avaliable in windows lld-link > > That was about ELF symbol visibility and doesn't apply to Windows at all. - The symbols are stripped by default for Windows targets (/OPT:REF for MS linker/LLD). You can cross-check by disabling via `-disable-linker-strip-dead`. Hmm, ok, my question is in fact relate to this kind of thing: https://godbolt.org/z/NGjyyx Why int example.add(int, int): its still on the binary when all u need is alredy optimized to main: mov eax, 30 ret ? |
March 21, 2020 Re: Strip Unused Symbols Ldc + Windows | ||||
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Posted in reply to SrMordred | On Saturday, 21 March 2020 at 17:33:21 UTC, SrMordred wrote:
> Hmm, ok, my question is in fact relate to this kind of thing:
> https://godbolt.org/z/NGjyyx
>
> Why int example.add(int, int): its still on the binary when all u need is alredy optimized to
> main:
> mov eax, 30
> ret
>
> ?
You're inspecting an object file, before any linker and symbol stripping is involved.
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March 21, 2020 Re: Strip Unused Symbols Ldc + Windows | ||||
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Posted in reply to kinke | On Saturday, 21 March 2020 at 18:01:55 UTC, kinke wrote:
> On Saturday, 21 March 2020 at 17:33:21 UTC, SrMordred wrote:
>> Hmm, ok, my question is in fact relate to this kind of thing:
>> https://godbolt.org/z/NGjyyx
>>
>> Why int example.add(int, int): its still on the binary when all u need is alredy optimized to
>> main:
>> mov eax, 30
>> ret
>>
>> ?
>
> You're inspecting an object file, before any linker and symbol stripping is involved.
Oh, i thought that the symbol stripping was before linker!, my bad, thanks!
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