func rawSyscall6(trap, nargs, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)

//go:cgo_import_dynamic libc_fstatat fstatat "libc.so"
//go:cgo_import_dynamic libc_openat openat "libc.so"
//go:cgo_import_dynamic libc_unlinkat unlinkat "libc.so"
//go:cgo_import_dynamic libc_uname uname "libc.so"

const (
	AT_REMOVEDIR        = 0x1
	AT_SYMLINK_NOFOLLOW = 0x1000

	UTIME_OMIT = -0x2

//go:cgo_import_dynamic libc_munmap munmap "libc.so"
//go:cgo_import_dynamic libc_madvise madvise "libc.so"

//go:cgo_import_dynamic libc_open open "libc.so"
//go:cgo_import_dynamic libc_close close "libc.so"
//go:cgo_import_dynamic libc_read read "libc.so"
//go:cgo_import_dynamic libc_write write "libc.so"
//go:cgo_import_dynamic libc_pipe2 pipe2 "libc.so"

//go:cgo_import_dynamic libc_clock_gettime clock_gettime "libc.so"

One is written in pure Go and parses /etc/passwd and /etc/group. The other
is cgo-based and relies on the standard C library (libc) routines such as
getpwuid_r, getgrnam_r, and getgrouplist.

When cgo is available, and the required routines are implemented in libc
for a particular platform, cgo-based (libc-backed) code is used.
This can be overridden by using osusergo build tag, which enforces
the pure Go implementation.
*/
package user

// license that can be found in the LICENSE file.

//go:build solaris

package syscall

import "unsafe"

//go:cgo_import_dynamic libc_Getpgid getpgid "libc.so"
//go:cgo_import_dynamic libc_Getpgrp getpgrp "libc.so"

//go:linkname libc_Getpgid libc_Getpgid
//go:linkname libc_Getpgrp libc_Getpgrp

var (
	libc_Getpgid,
	libc_Getpgrp libcFunc
)

// license that can be found in the LICENSE file.

//go:build aix

package syscall

import "unsafe"

//go:cgo_import_dynamic libc_Getpgid getpgid "libc.a/shr_64.o"
//go:cgo_import_dynamic libc_Getpgrp getpgrp "libc.a/shr_64.o"

//go:linkname libc_Getpgid libc_Getpgid
//go:linkname libc_Getpgrp libc_Getpgrp

var (
	libc_Getpgid,
	libc_Getpgrp libcFunc
)

//go:linkname syscall_syscall6 syscall.syscall6
func syscall_syscall6(fn, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2 uintptr, err syscall.Errno)

func libc_faccessat_trampoline()

//go:cgo_import_dynamic libc_faccessat faccessat "libc.so"

func faccessat(dirfd int, path string, mode uint32, flags int) error {
	p, err := syscall.BytePtrFromString(path)
	if err != nil {
		return err
	}

package runtime

import (
	"internal/abi"
	"unsafe"
)

// The X versions of syscall expect the libc call to return a 64-bit result.
// Otherwise (the non-X version) expects a 32-bit result.
// This distinction is required because an error is indicated by returning -1,
// and we need to know whether to check 32 or 64 bits of the result.
// (Some libc functions that return 32 bits put junk in the upper 32 bits of AX.)

	// packages make use of syscall.Syscall with SYS_IOCTL since it is
	// not well supported by golang.org/x/sys/unix. Reroute this system
	// call number to the respective libc stub so that it continues to
	// work for the time being. See #63900 for further details.
	if trap == SYS_IOCTL {
		return syscallX(abi.FuncPCABI0(libc_ioctl_trampoline), a1, a2, a3)
	}
	return 0, 0, ENOSYS
}

		return
	}
	re := regexp.MustCompile(`libc\.so[^ ]* => ([^ ]+)`)
	m := re.FindStringSubmatch(string(out))
	if m == nil {
		return
	}
	cmd = exec.Command(m[1])
	out, err = cmd.Output()
	if err != nil {
		return
	}
	fmt.Fprintf(w, "%s: %s\n", m[1], firstLine(out))

	// print another line (the one containing version string) in case of musl libc

}

func notesleep(n *note) {
	gp := getg()
	if gp != gp.m.g0 {
		throw("notesleep not on g0")
	}
	ns := int64(-1)
	if *cgo_yield != nil {
		// Sleep for an arbitrary-but-moderate interval to poll libc interceptors.
		ns = 10e6
	}
	for atomic.Load(key32(&n.key)) == 0 {
		gp.m.blocked = true
		futexsleep(key32(&n.key), 0, ns)
		if *cgo_yield != nil {
			asmcgocall(*cgo_yield, nil)
		}