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Published: Aug 25, 2023 License: BSD-3-Clause Imports: 17 Imported by: 0



mkwinsyscall generates windows system call bodies

It parses all files specified on command line containing function prototypes (like syscall_windows.go) and prints system call bodies to standard output.

The prototypes are marked by lines beginning with "//sys" and read like func declarations if //sys is replaced by func, but:

  • The parameter lists must give a name for each argument. This includes return parameters.

  • The parameter lists must give a type for each argument: the (x, y, z int) shorthand is not allowed.

  • If the return parameter is an error number, it must be named err.

  • If go func name needs to be different from its winapi dll name, the winapi name could be specified at the end, after "=" sign, like //sys LoadLibrary(libname string) (handle uint32, err error) = LoadLibraryA

  • Each function that returns err needs to supply a condition, that return value of winapi will be tested against to detect failure. This would set err to windows "last-error", otherwise it will be nil. The value can be provided at end of //sys declaration, like //sys LoadLibrary(libname string) (handle uint32, err error) [failretval==-1] = LoadLibraryA and is [failretval==0] by default.

  • If the function name ends in a "?", then the function not existing is non- fatal, and an error will be returned instead of panicking.


mkwinsyscall [flags] [path ...]

The flags are:

	Specify output file name (outputs to console if blank).
	Generate print statement after every syscall.

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