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fn syscall0(_: u64) u64;
fn syscall1(_: u64, _: u64) u64;
fn syscall2(_: u64, _: u64, _: u64) u64;
fn syscall3(_: u64, _: u64, _: u64, _: u64) u64;
fn syscall4(_: u64, _: u64, _: u64, _: u64, _: u64) u64;
fn _mmap(_: u64, _: u64, _: u64, _: u64, _: u64, _: u64) u64;
fn _pipe2(_: u64, _: u64) u64;
export fn write(fd: int, buf: *const opaque, count: size) size =
syscall3(SYS_write, fd: u64, buf: uintptr: u64, count: u64): size;
export fn close(fd: int) int = syscall1(SYS_close, fd: u64): int;
export fn dup2(old: int, new: int) int =
syscall2(SYS_dup2, old: u64, new: u64): int;
export fn getpid() int = syscall0(SYS_getpid): int;
export def EXIT_SUCCESS: int = 0;
export fn exit(status: int) never = {
syscall1(SYS_exit, status: u64);
abort();
};
export fn fork() int = syscall0(SYS_fork): int;
export fn execve(
path: *const u8,
argv: *[*]nullable *const u8,
envp: *[*]nullable *const u8,
) int = syscall3(SYS_execve,
path: uintptr: u64,
argv: uintptr: u64,
envp: uintptr: u64): int;
export fn wait4(pid: int, status: *int, options: int, rusage: nullable *opaque) void = {
syscall4(SYS_wait4, pid: u64, status: uintptr: u64,
options: u64, rusage: uintptr: u64);
};
export fn wifstopped(status: int) bool = wtermsig(status) == 0o177;
export fn wifcontinued(status: int) bool = status == 19;
export fn wifexited(status: int) bool = wtermsig(status) == 0;
export fn wifsignaled(status: int) bool =
!wifstopped(status) && !wifcontinued(status) && !wifexited(status);
export fn wexitstatus(status: int) int = (status & 0xff00) >> 8;
export fn wtermsig(status: int) int = status & 0o177;
export fn kill(pid: int, signal: int) int =
syscall2(SYS_kill, pid: u64, signal: u64): int;
export fn pipe2(pipefd: *[2]int, flags: int) int =
_pipe2(pipefd: uintptr: u64, flags: u64): int;
export def MAP_SHARED: uint = 0x0001;
export def MAP_PRIVATE: uint = 0x0002;
export def MAP_FIXED: uint = 0x0010;
export def MAP_HASSEMAPHORE: uint = 0x0200;
export def MAP_STACK: uint = 0x0400;
export def MAP_NOSYNC: uint = 0x0800;
export def MAP_FILE: uint = 0x0000;
export def MAP_ANON: uint = 0x1000;
export def MAP_VPAGETABLE: uint = 0x2000;
export def MAP_TRYFIXED: uint = 0x00010000;
export def MAP_NOCORE: uint = 0x00020000;
export def MAP_SIZEALIGN: uint = 0x00040000;
export def MAP_32BIT: uint = 0x00080000;
def PROT_NONE: uint = 0x00;
def PROT_READ: uint = 0x01;
def PROT_WRITE: uint = 0x02;
def PROT_EXEC: uint = 0x04;
export fn mmap(
addr: nullable *opaque,
length: size,
prot: uint,
flags: uint,
fd: int,
offs: size
) *opaque = {
return _mmap(addr: uintptr: u64, length: u64, prot: u64,
flags: u64, fd: u64, offs: u64): uintptr: *opaque;
};
export fn munmap(addr: *opaque, length: size) int =
syscall2(SYS_munmap, addr: uintptr: u64, length: u64): int;
export def SIGABRT: int = 6;
export def SIGCHLD: int = 20;
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