cosmopolitan/libc/nt/thunk/msabi.h
Justine Tunney 9e3e985ae5 Make terminal ui binaries work well everywhere
Here's some screenshots of an emulator tui program that was compiled on
Linux, then scp'd it to Windows, Mac, and FreeBSD.

https://justine.storage.googleapis.com/blinkenlights-cmdexe.png
https://justine.storage.googleapis.com/blinkenlights-imac.png
https://justine.storage.googleapis.com/blinkenlights-freebsd.png
https://justine.storage.googleapis.com/blinkenlights-lisp.png

How is this even possible that we have a nontrivial ui binary that just
works on Mac, Windows, Linux, and BSD? Surely a first ever achievement.

Fixed many bugs. Bootstrapped John McCarthy's metacircular evaluator on
bare metal in half the size of Altair BASIC (about 2.5kb) and ran it in
emulator for fun and profit.
2020-10-19 06:38:31 -07:00

30 lines
939 B
C

#ifndef COSMOPOLITAN_LIBC_NT_THUNK_MSABI_H_
#define COSMOPOLITAN_LIBC_NT_THUNK_MSABI_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
/**
* Defines function as using Microsoft x64 calling convention.
*
* This can be used to define prototypes that allow modern compilers to
* generate code that calls MS ABI functions directly, without needing
* to jump through the assembly thunks.
*/
#if !defined(__STRICT_ANSI__) && \
(__GNUC__ * 100 + __GNUC_MINOR__ >= 408 || \
(__has_attribute(__ms_abi__) || defined(__llvm__)))
#define __msabi __attribute__((__ms_abi__))
#endif
/**
* Returns true if header should provide MS-ABI overrides.
*/
#ifndef ShouldUseMsabiAttribute
#if defined(__msabi) && defined(NDEBUG) && !defined(__PG__)
#define ShouldUseMsabiAttribute() 1
#else
#define ShouldUseMsabiAttribute() 0
#endif
#endif
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_NT_THUNK_MSABI_H_ */