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[dev.garbage] all: merge dev.cc into dev.garbage

Browse source 
The garbage collector is now written in Go.
There is plenty to clean up (just like on dev.cc).

all.bash passes on darwin/amd64, darwin/386, linux/amd64, linux/386.

TBR=rlh
R=austin, rlh, bradfitz
CC=golang-codereviews
https://golang.org/cl/173250043
This commit is contained in:
Russ Cox 2014-11-15 08:00:38 -05:00
commit 0fcf54b3d2
384 changed files with 22419 additions and 69497 deletions
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42
src/runtime/proc.go
View file

@ -6,8 +6,6 @@ package runtime
import "unsafe"
func newsysmon()
func runtime_init()
func main_init()
func main_main()
@ -29,7 +27,7 @@ func main() {
maxstacksize = 250000000
}
onM(newsysmon)
systemstack(newsysmon)
// Lock the main goroutine onto this, the main OS thread,
// during initialization. Most programs won't care, but a few
@ -55,6 +53,24 @@ func main() {
memstats.enablegc = true // now that runtime is initialized, GC is okay
if iscgo {
if _cgo_thread_start == nil {
gothrow("_cgo_thread_start missing")
}
if _cgo_malloc == nil {
gothrow("_cgo_malloc missing")
}
if _cgo_free == nil {
gothrow("_cgo_free missing")
}
if _cgo_setenv == nil {
gothrow("_cgo_setenv missing")
}
if _cgo_unsetenv == nil {
gothrow("_cgo_unsetenv missing")
}
}
main_init()
needUnlock = false
@ -80,8 +96,6 @@ func main() {
}
}
var parkunlock_c byte
// start forcegc helper goroutine
func init() {
go forcegchelper()
@ -115,7 +129,7 @@ func Gosched() {
// Puts the current goroutine into a waiting state and calls unlockf.
// If unlockf returns false, the goroutine is resumed.
func gopark(unlockf unsafe.Pointer, lock unsafe.Pointer, reason string) {
func gopark(unlockf func(*g, unsafe.Pointer) bool, lock unsafe.Pointer, reason string) {
mp := acquirem()
gp := mp.curg
status := readgstatus(gp)
@ -123,7 +137,7 @@ func gopark(unlockf unsafe.Pointer, lock unsafe.Pointer, reason string) {
gothrow("gopark: bad g status")
}
mp.waitlock = lock
mp.waitunlockf = unlockf
mp.waitunlockf = *(*unsafe.Pointer)(unsafe.Pointer(&unlockf))
gp.waitreason = reason
releasem(mp)
// can't do anything that might move the G between Ms here.
@ -133,14 +147,13 @@ func gopark(unlockf unsafe.Pointer, lock unsafe.Pointer, reason string) {
// Puts the current goroutine into a waiting state and unlocks the lock.
// The goroutine can be made runnable again by calling goready(gp).
func goparkunlock(lock *mutex, reason string) {
gopark(unsafe.Pointer(&parkunlock_c), unsafe.Pointer(lock), reason)
gopark(parkunlock_c, unsafe.Pointer(lock), reason)
}
func goready(gp *g) {
mp := acquirem()
mp.ptrarg[0] = unsafe.Pointer(gp)
onM(ready_m)
releasem(mp)
systemstack(func() {
ready(gp)
})
}
//go:nosplit
@ -226,6 +239,11 @@ func newG() *g {
return new(g)
}
var (
allgs []*g
allglock mutex
)
func allgadd(gp *g) {
if readgstatus(gp) == _Gidle {
gothrow("allgadd: bad status Gidle")