sysops.h File Reference

Typed wrappers over the raw syscall layer – the only place outside the arch instruction sequences where syscallN(SYS_*) may appear. More...

#include "common/arch/x8664/x8664.h"

Go to the source code of this file.

Functions
static i64	wired_arch_openat (i64 dirfd, const char *path, i64 flags, i64 mode)
	openat(2): open path relative to dirfd.
static i64	wired_arch_close (i64 fd)
	close(2).
static i64	wired_arch_read (i64 fd, void *buf, usz n)
	read(2).
static i64	wired_arch_write (i64 fd, const void *buf, usz n)
	write(2).
static i64	wired_arch_pread64 (i64 fd, void *buf, usz n, u64 off)
	pread64(2): read at an explicit offset, file position unmoved.
static i64	wired_arch_newfstatat (i64 dirfd, const char *path, void *st, i64 flags)
	newfstatat(2): stat path (kernel struct stat into st).
static i64	wired_arch_mkdirat (i64 dirfd, const char *path, i64 mode)
	mkdirat(2).
static i64	wired_arch_socket (i64 domain, i64 type, i64 protocol)
	socket(2).
static i64	wired_arch_bind (i64 fd, const void *addr, i64 len)
	bind(2): addr is a kernel sockaddr of len bytes.
static i64	wired_arch_setsockopt (i64 fd, i64 level, i64 opt, const void *val, i64 len)
	setsockopt(2).
static i64	wired_arch_getsockopt (i64 fd, i64 level, i64 opt, void *val, void *len)
	getsockopt(2): len is an in/out i32*.
static i64	wired_arch_sendto (i64 fd, const void *buf, usz n, i64 flags, const void *addr, i64 alen)
	sendto(2): addr may be 0/len 0 for connected-style sends.
static i64	wired_arch_recvfrom (i64 fd, void *buf, usz n, i64 flags, void *addr, void *alen)
	recvfrom(2): addr/alen may be 0 when the sender is not needed.
static i64	wired_arch_sendmsg (i64 fd, const void *msg, i64 flags)
	sendmsg(2): msg is a kernel struct msghdr.
static i64	wired_arch_recvmmsg (i64 fd, void *vec, usz n, i64 flags, void *timeout)
	recvmmsg(2): vec is a kernel struct mmsghdr array of n entries.
static i64	wired_arch_poll (void *fds, i64 nfds, i64 timeout_ms)
	poll(2): fds is a kernel struct pollfd array.
static i64	wired_arch_fcntl (i64 fd, i64 cmd, i64 arg)
	fcntl(2).
static i64	wired_arch_mmap (i64 addr, usz len, i64 prot, i64 flags, i64 fd, u64 off)
	mmap(2): addresses as i64 (x86_64 user addresses are never negative, so < 0 on the return is the error test).
static i64	wired_arch_mprotect (i64 addr, i64 len, i64 prot)
	mprotect(2).
static i64	wired_arch_munmap (i64 addr, usz len)
	munmap(2).
static i64	wired_arch_exit (i64 code)
	exit(2): ends the calling thread (last thread ends the process).
static i64	wired_arch_exit_group (i64 code)
	exit_group(2): ends every thread in the process.
static i64	wired_arch_fork (void)
	fork(2).
static i64	wired_arch_wait4 (i64 pid, void *status, i64 opts, void *rusage)
	wait4(2).
static i64	wired_arch_kill (i64 pid, i64 sig)
	kill(2).
static i64	wired_arch_getpid (void)
	getpid(2).
static i64	wired_arch_getppid (void)
	getppid(2).
static i64	wired_arch_prctl (i64 op, i64 arg2)
	prctl(2).
static i64	wired_arch_gettid (void)
	gettid(2).
static i64	wired_arch_futex (void *uaddr, i64 op, i64 val, void *timeout, void *uaddr2, i64 val3)
	futex(2).
static i64	wired_arch_clock_gettime (i64 clkid, void *ts)
	clock_gettime(2): ts is a kernel struct timespec.
static i64	wired_arch_getrandom (void *buf, usz n, i64 flags)
	getrandom(2).
static i64	wired_arch_sched_getaffinity (i64 pid, i64 len, void *mask)
	sched_getaffinity(2): mask is a cpu bitmap of len bytes.
static i64	wired_arch_sched_setaffinity (i64 pid, i64 len, const void *mask)
	sched_setaffinity(2).
static i64	wired_arch_rt_sigaction (i64 sig, const void *act, void *old, i64 setsize)
	rt_sigaction(2): act/old are kernel_sigaction (not glibc's).
static i64	wired_arch_rt_sigprocmask (i64 how, const void *set, void *old, i64 setsize)
	rt_sigprocmask(2): set/old are u64 signal bitmaps.
static i64	wired_arch_rt_sigtimedwait (const void *set, void *info, const void *ts, i64 setsize)
	rt_sigtimedwait(2): wait for a signal in the u64 bitmap set (which must be blocked); info/ts may be 0 (no siginfo, no timeout).
static i64	wired_arch_bpf (i64 cmd, void *attr, i64 size)
	bpf(2): attr is a kernel union bpf_attr of size bytes.

Detailed Description

Typed wrappers over the raw syscall layer – the only place outside the arch instruction sequences where syscallN(SYS_*) may appear.

Every domain calls kernel functionality through these wired_arch_* names; the wrappers stay deliberately thin: kernel argument order, pointers as void* (callers keep their own struct definitions), lengths as usz and file offsets as u64 (cast to the raw i64 here), and the kernel's raw i64 return where negative values are -errno.

Function Documentation

wired_arch_rt_sigtimedwait()

i64 wired_arch_rt_sigtimedwait ( const void * set, void * info, const void * ts, i64 setsize )

inlinestatic

rt_sigtimedwait(2): wait for a signal in the u64 bitmap set (which must be blocked); info/ts may be 0 (no siginfo, no timeout).

Returns

the signal number, or a negative errno.