export SetupEntryInformation()

[Thaddy]

exporting SetupEntryInformation() will make static linking fpc libraries to other languages easy.
As far as I can see it needs just 7 characters: "export;"
This avoids code I need now:

/* The mangled name FPC gives SetupEntryInformation in SYSTEM. */
extern void SetupEntryInformation(TEntryInformation *info)
    asm("SYSTEM_$$_SETUPENTRYINFORMATION$TENTRYINFORMATION");

;) This is only for the diehards, but would fit Unleashed perfectly....
More info here:
https://forum.lazarus.freepascal.org/index.php/topic,74996.msg590912.html#msg590912

[fibodevy]

Are you willing to test static linking of Pascal static libraries from other languages? I have an unfinished and not yet properly tested feature branch for this: -XA (or --staticlib) builds a library into a self-contained .a with the RTL inside, and you just export rtlInit/rtlDone under whatever name you want. If you're in, I'll push it right away.

[fibodevy]

Pushed: https://github.com/unleashedpascal/compiler/tree/feat/staticlib

Docs: https://github.com/unleashedpascal/compiler/blob/feat/staticlib/unleashed/docs/static-library.md

Tried it on Windows and Linux (Mint): FPC static lib, C host program, threads, FPC IO, all fine. No need to export SetupEntryInformation, the host just calls the exported rtlInit/rtlDone.

You need the compiler and RTL built from the branch. The ld 2.28 that comes with FPC is too old for this (it ignores --gc-sections in a relocatable link), so point -FD at a recent binutils. On Linux link the host with -no-pie, unless the RTL and the lib are built with -Cg.

[Thaddy]

Will have a look. (of course ;) ) Meanwhile I patched it myself in my local repository. You seem to take a different approach. I tried to reconstruct the way dll's are handled based on what is already there in the compiler, which is complete for static linking except for that export.

[Thaddy]

clone failed (conn reset by peer)

[fibodevy]

clone failed (conn reset by peer)

Try again 😃

[Thaddy]

works ;)

…

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