syscall: Permit non-blocking syscalls.
Permit system calls to be designated as non-blocking, meaning
that we simply call them without involving the scheduler.
This change by itself is mostly performance neutral. In
combination with a following change to the net package there
is a performance advantage.
R=rsc, dfc, r2, iant2, rsc1
CC=golang-dev
https://golang.org/cl/4278055
diff --git a/src/pkg/syscall/zsyscall_linux_amd64.go b/src/pkg/syscall/zsyscall_linux_amd64.go
index 65ea8da..f29d462 100644
--- a/src/pkg/syscall/zsyscall_linux_amd64.go
+++ b/src/pkg/syscall/zsyscall_linux_amd64.go
@@ -26,7 +26,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func pipe(p *[2]_C_int) (errno int) {
- _, _, e1 := Syscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
+ _, _, e1 := RawSyscall(SYS_PIPE, uintptr(unsafe.Pointer(p)), 0, 0)
errno = int(e1)
return
}
@@ -156,7 +156,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup(oldfd int) (fd int, errno int) {
- r0, _, e1 := Syscall(SYS_DUP, uintptr(oldfd), 0, 0)
+ r0, _, e1 := RawSyscall(SYS_DUP, uintptr(oldfd), 0, 0)
fd = int(r0)
errno = int(e1)
return
@@ -165,7 +165,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Dup2(oldfd int, newfd int) (fd int, errno int) {
- r0, _, e1 := Syscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
+ r0, _, e1 := RawSyscall(SYS_DUP2, uintptr(oldfd), uintptr(newfd), 0)
fd = int(r0)
errno = int(e1)
return
@@ -174,7 +174,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func EpollCreate(size int) (fd int, errno int) {
- r0, _, e1 := Syscall(SYS_EPOLL_CREATE, uintptr(size), 0, 0)
+ r0, _, e1 := RawSyscall(SYS_EPOLL_CREATE, uintptr(size), 0, 0)
fd = int(r0)
errno = int(e1)
return
@@ -183,7 +183,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func EpollCtl(epfd int, op int, fd int, event *EpollEvent) (errno int) {
- _, _, e1 := Syscall6(SYS_EPOLL_CTL, uintptr(epfd), uintptr(op), uintptr(fd), uintptr(unsafe.Pointer(event)), 0, 0)
+ _, _, e1 := RawSyscall6(SYS_EPOLL_CTL, uintptr(epfd), uintptr(op), uintptr(fd), uintptr(unsafe.Pointer(event)), 0, 0)
errno = int(e1)
return
}
@@ -301,7 +301,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpgid(pid int) (pgid int, errno int) {
- r0, _, e1 := Syscall(SYS_GETPGID, uintptr(pid), 0, 0)
+ r0, _, e1 := RawSyscall(SYS_GETPGID, uintptr(pid), 0, 0)
pgid = int(r0)
errno = int(e1)
return
@@ -310,7 +310,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpgrp() (pid int) {
- r0, _, _ := Syscall(SYS_GETPGRP, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETPGRP, 0, 0, 0)
pid = int(r0)
return
}
@@ -318,7 +318,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getpid() (pid int) {
- r0, _, _ := Syscall(SYS_GETPID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETPID, 0, 0, 0)
pid = int(r0)
return
}
@@ -326,7 +326,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getppid() (ppid int) {
- r0, _, _ := Syscall(SYS_GETPPID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETPPID, 0, 0, 0)
ppid = int(r0)
return
}
@@ -334,7 +334,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getrlimit(resource int, rlim *Rlimit) (errno int) {
- _, _, e1 := Syscall(SYS_GETRLIMIT, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0)
+ _, _, e1 := RawSyscall(SYS_GETRLIMIT, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0)
errno = int(e1)
return
}
@@ -342,7 +342,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getrusage(who int, rusage *Rusage) (errno int) {
- _, _, e1 := Syscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
+ _, _, e1 := RawSyscall(SYS_GETRUSAGE, uintptr(who), uintptr(unsafe.Pointer(rusage)), 0)
errno = int(e1)
return
}
@@ -350,7 +350,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Gettid() (tid int) {
- r0, _, _ := Syscall(SYS_GETTID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETTID, 0, 0, 0)
tid = int(r0)
return
}
@@ -367,7 +367,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InotifyInit() (fd int, errno int) {
- r0, _, e1 := Syscall(SYS_INOTIFY_INIT, 0, 0, 0)
+ r0, _, e1 := RawSyscall(SYS_INOTIFY_INIT, 0, 0, 0)
fd = int(r0)
errno = int(e1)
return
@@ -376,7 +376,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InotifyInit1(flags int) (fd int, errno int) {
- r0, _, e1 := Syscall(SYS_INOTIFY_INIT1, uintptr(flags), 0, 0)
+ r0, _, e1 := RawSyscall(SYS_INOTIFY_INIT1, uintptr(flags), 0, 0)
fd = int(r0)
errno = int(e1)
return
@@ -385,7 +385,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func InotifyRmWatch(fd int, watchdesc uint32) (success int, errno int) {
- r0, _, e1 := Syscall(SYS_INOTIFY_RM_WATCH, uintptr(fd), uintptr(watchdesc), 0)
+ r0, _, e1 := RawSyscall(SYS_INOTIFY_RM_WATCH, uintptr(fd), uintptr(watchdesc), 0)
success = int(r0)
errno = int(e1)
return
@@ -394,7 +394,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Kill(pid int, sig int) (errno int) {
- _, _, e1 := Syscall(SYS_KILL, uintptr(pid), uintptr(sig), 0)
+ _, _, e1 := RawSyscall(SYS_KILL, uintptr(pid), uintptr(sig), 0)
errno = int(e1)
return
}
@@ -571,7 +571,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setpgid(pid int, pgid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETPGID, uintptr(pid), uintptr(pgid), 0)
+ _, _, e1 := RawSyscall(SYS_SETPGID, uintptr(pid), uintptr(pgid), 0)
errno = int(e1)
return
}
@@ -579,7 +579,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setrlimit(resource int, rlim *Rlimit) (errno int) {
- _, _, e1 := Syscall(SYS_SETRLIMIT, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0)
+ _, _, e1 := RawSyscall(SYS_SETRLIMIT, uintptr(resource), uintptr(unsafe.Pointer(rlim)), 0)
errno = int(e1)
return
}
@@ -587,7 +587,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setsid() (pid int, errno int) {
- r0, _, e1 := Syscall(SYS_SETSID, 0, 0, 0)
+ r0, _, e1 := RawSyscall(SYS_SETSID, 0, 0, 0)
pid = int(r0)
errno = int(e1)
return
@@ -596,7 +596,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Settimeofday(tv *Timeval) (errno int) {
- _, _, e1 := Syscall(SYS_SETTIMEOFDAY, uintptr(unsafe.Pointer(tv)), 0, 0)
+ _, _, e1 := RawSyscall(SYS_SETTIMEOFDAY, uintptr(unsafe.Pointer(tv)), 0, 0)
errno = int(e1)
return
}
@@ -604,7 +604,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setuid(uid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETUID, uintptr(uid), 0, 0)
+ _, _, e1 := RawSyscall(SYS_SETUID, uintptr(uid), 0, 0)
errno = int(e1)
return
}
@@ -627,7 +627,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Sysinfo(info *Sysinfo_t) (errno int) {
- _, _, e1 := Syscall(SYS_SYSINFO, uintptr(unsafe.Pointer(info)), 0, 0)
+ _, _, e1 := RawSyscall(SYS_SYSINFO, uintptr(unsafe.Pointer(info)), 0, 0)
errno = int(e1)
return
}
@@ -644,7 +644,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Tgkill(tgid int, tid int, sig int) (errno int) {
- _, _, e1 := Syscall(SYS_TGKILL, uintptr(tgid), uintptr(tid), uintptr(sig))
+ _, _, e1 := RawSyscall(SYS_TGKILL, uintptr(tgid), uintptr(tid), uintptr(sig))
errno = int(e1)
return
}
@@ -652,7 +652,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Times(tms *Tms) (ticks uintptr, errno int) {
- r0, _, e1 := Syscall(SYS_TIMES, uintptr(unsafe.Pointer(tms)), 0, 0)
+ r0, _, e1 := RawSyscall(SYS_TIMES, uintptr(unsafe.Pointer(tms)), 0, 0)
ticks = uintptr(r0)
errno = int(e1)
return
@@ -661,7 +661,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Umask(mask int) (oldmask int) {
- r0, _, _ := Syscall(SYS_UMASK, uintptr(mask), 0, 0)
+ r0, _, _ := RawSyscall(SYS_UMASK, uintptr(mask), 0, 0)
oldmask = int(r0)
return
}
@@ -669,7 +669,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Uname(buf *Utsname) (errno int) {
- _, _, e1 := Syscall(SYS_UNAME, uintptr(unsafe.Pointer(buf)), 0, 0)
+ _, _, e1 := RawSyscall(SYS_UNAME, uintptr(unsafe.Pointer(buf)), 0, 0)
errno = int(e1)
return
}
@@ -806,7 +806,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getegid() (egid int) {
- r0, _, _ := Syscall(SYS_GETEGID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETEGID, 0, 0, 0)
egid = int(r0)
return
}
@@ -814,7 +814,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Geteuid() (euid int) {
- r0, _, _ := Syscall(SYS_GETEUID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETEUID, 0, 0, 0)
euid = int(r0)
return
}
@@ -822,7 +822,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getgid() (gid int) {
- r0, _, _ := Syscall(SYS_GETGID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETGID, 0, 0, 0)
gid = int(r0)
return
}
@@ -830,7 +830,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Getuid() (uid int) {
- r0, _, _ := Syscall(SYS_GETUID, 0, 0, 0)
+ r0, _, _ := RawSyscall(SYS_GETUID, 0, 0, 0)
uid = int(r0)
return
}
@@ -942,7 +942,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setgid(gid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETGID, uintptr(gid), 0, 0)
+ _, _, e1 := RawSyscall(SYS_SETGID, uintptr(gid), 0, 0)
errno = int(e1)
return
}
@@ -950,7 +950,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setregid(rgid int, egid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETREGID, uintptr(rgid), uintptr(egid), 0)
+ _, _, e1 := RawSyscall(SYS_SETREGID, uintptr(rgid), uintptr(egid), 0)
errno = int(e1)
return
}
@@ -958,7 +958,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setresgid(rgid int, egid int, sgid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETRESGID, uintptr(rgid), uintptr(egid), uintptr(sgid))
+ _, _, e1 := RawSyscall(SYS_SETRESGID, uintptr(rgid), uintptr(egid), uintptr(sgid))
errno = int(e1)
return
}
@@ -966,7 +966,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setresuid(ruid int, euid int, suid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETRESUID, uintptr(ruid), uintptr(euid), uintptr(suid))
+ _, _, e1 := RawSyscall(SYS_SETRESUID, uintptr(ruid), uintptr(euid), uintptr(suid))
errno = int(e1)
return
}
@@ -974,7 +974,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func Setreuid(ruid int, euid int) (errno int) {
- _, _, e1 := Syscall(SYS_SETREUID, uintptr(ruid), uintptr(euid), 0)
+ _, _, e1 := RawSyscall(SYS_SETREUID, uintptr(ruid), uintptr(euid), 0)
errno = int(e1)
return
}
@@ -1056,7 +1056,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func getgroups(n int, list *_Gid_t) (nn int, errno int) {
- r0, _, e1 := Syscall(SYS_GETGROUPS, uintptr(n), uintptr(unsafe.Pointer(list)), 0)
+ r0, _, e1 := RawSyscall(SYS_GETGROUPS, uintptr(n), uintptr(unsafe.Pointer(list)), 0)
nn = int(r0)
errno = int(e1)
return
@@ -1065,7 +1065,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func setgroups(n int, list *_Gid_t) (errno int) {
- _, _, e1 := Syscall(SYS_SETGROUPS, uintptr(n), uintptr(unsafe.Pointer(list)), 0)
+ _, _, e1 := RawSyscall(SYS_SETGROUPS, uintptr(n), uintptr(unsafe.Pointer(list)), 0)
errno = int(e1)
return
}
@@ -1081,7 +1081,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func socket(domain int, typ int, proto int) (fd int, errno int) {
- r0, _, e1 := Syscall(SYS_SOCKET, uintptr(domain), uintptr(typ), uintptr(proto))
+ r0, _, e1 := RawSyscall(SYS_SOCKET, uintptr(domain), uintptr(typ), uintptr(proto))
fd = int(r0)
errno = int(e1)
return
@@ -1090,7 +1090,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func socketpair(domain int, typ int, proto int, fd *[2]int) (errno int) {
- _, _, e1 := Syscall6(SYS_SOCKETPAIR, uintptr(domain), uintptr(typ), uintptr(proto), uintptr(unsafe.Pointer(fd)), 0, 0)
+ _, _, e1 := RawSyscall6(SYS_SOCKETPAIR, uintptr(domain), uintptr(typ), uintptr(proto), uintptr(unsafe.Pointer(fd)), 0, 0)
errno = int(e1)
return
}
@@ -1098,7 +1098,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) {
- _, _, e1 := Syscall(SYS_GETPEERNAME, uintptr(fd), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)))
+ _, _, e1 := RawSyscall(SYS_GETPEERNAME, uintptr(fd), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)))
errno = int(e1)
return
}
@@ -1106,7 +1106,7 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
func getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (errno int) {
- _, _, e1 := Syscall(SYS_GETSOCKNAME, uintptr(fd), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)))
+ _, _, e1 := RawSyscall(SYS_GETSOCKNAME, uintptr(fd), uintptr(unsafe.Pointer(rsa)), uintptr(unsafe.Pointer(addrlen)))
errno = int(e1)
return
}
