runtime: merge the last four os-vs-os1 files together

Change-Id: Ib0ba691c4657fe18a4659753e70d97c623cb9c1d
Reviewed-on: https://go-review.googlesource.com/22850
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

1 files changed, 0 insertions, 145 deletions

diff --git a/src/runtime/os_plan9.go b/src/runtime/os_plan9.go
index 5c43a3bd85..47bf8fc20d 100644
--- a/src/runtime/os_plan9.go
+++ b/src/runtime/os_plan9.go
@@ -3,148 +3,3 @@
 // license that can be found in the LICENSE file.
 
 package runtime
-
-import "unsafe"
-
-type mOS struct {
-	waitsemacount uint32
-	notesig       *int8
-	errstr        *byte
-}
-
-func closefd(fd int32) int32
-
-//go:noescape
-func open(name *byte, mode, perm int32) int32
-
-//go:noescape
-func pread(fd int32, buf unsafe.Pointer, nbytes int32, offset int64) int32
-
-//go:noescape
-func pwrite(fd int32, buf unsafe.Pointer, nbytes int32, offset int64) int32
-
-func seek(fd int32, offset int64, whence int32) int64
-
-//go:noescape
-func exits(msg *byte)
-
-//go:noescape
-func brk_(addr unsafe.Pointer) int32
-
-func sleep(ms int32) int32
-
-func rfork(flags int32) int32
-
-//go:noescape
-func plan9_semacquire(addr *uint32, block int32) int32
-
-//go:noescape
-func plan9_tsemacquire(addr *uint32, ms int32) int32
-
-//go:noescape
-func plan9_semrelease(addr *uint32, count int32) int32
-
-//go:noescape
-func notify(fn unsafe.Pointer) int32
-
-func noted(mode int32) int32
-
-//go:noescape
-func nsec(*int64) int64
-
-//go:noescape
-func sigtramp(ureg, msg unsafe.Pointer)
-
-func setfpmasks()
-
-//go:noescape
-func tstart_plan9(newm *m)
-
-func errstr() string
-
-type _Plink uintptr
-
-//go:linkname os_sigpipe os.sigpipe
-func os_sigpipe() {
-	throw("too many writes on closed pipe")
-}
-
-func sigpanic() {
-	g := getg()
-	if !canpanic(g) {
-		throw("unexpected signal during runtime execution")
-	}
-
-	note := gostringnocopy((*byte)(unsafe.Pointer(g.m.notesig)))
-	switch g.sig {
-	case _SIGRFAULT, _SIGWFAULT:
-		i := index(note, "addr=")
-		if i >= 0 {
-			i += 5
-		} else if i = index(note, "va="); i >= 0 {
-			i += 3
-		} else {
-			panicmem()
-		}
-		addr := note[i:]
-		g.sigcode1 = uintptr(atolwhex(addr))
-		if g.sigcode1 < 0x1000 || g.paniconfault {
-			panicmem()
-		}
-		print("unexpected fault address ", hex(g.sigcode1), "\n")
-		throw("fault")
-	case _SIGTRAP:
-		if g.paniconfault {
-			panicmem()
-		}
-		throw(note)
-	case _SIGINTDIV:
-		panicdivide()
-	case _SIGFLOAT:
-		panicfloat()
-	default:
-		panic(errorString(note))
-	}
-}
-
-func atolwhex(p string) int64 {
-	for hasprefix(p, " ") || hasprefix(p, "\t") {
-		p = p[1:]
-	}
-	neg := false
-	if hasprefix(p, "-") || hasprefix(p, "+") {
-		neg = p[0] == '-'
-		p = p[1:]
-		for hasprefix(p, " ") || hasprefix(p, "\t") {
-			p = p[1:]
-		}
-	}
-	var n int64
-	switch {
-	case hasprefix(p, "0x"), hasprefix(p, "0X"):
-		p = p[2:]
-		for ; len(p) > 0; p = p[1:] {
-			if '0' <= p[0] && p[0] <= '9' {
-				n = n*16 + int64(p[0]-'0')
-			} else if 'a' <= p[0] && p[0] <= 'f' {
-				n = n*16 + int64(p[0]-'a'+10)
-			} else if 'A' <= p[0] && p[0] <= 'F' {
-				n = n*16 + int64(p[0]-'A'+10)
-			} else {
-				break
-			}
-		}
-	case hasprefix(p, "0"):
-		for ; len(p) > 0 && '0' <= p[0] && p[0] <= '7'; p = p[1:] {
-			n = n*8 + int64(p[0]-'0')
-		}
-	default:
-		for ; len(p) > 0 && '0' <= p[0] && p[0] <= '9'; p = p[1:] {
-			n = n*10 + int64(p[0]-'0')
-		}
-	}
-	if neg {
-		n = -n
-	}
-	return n
-}