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runtime: break out system-specific constants into package sys

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runtime/internal/sys will hold system-, architecture- and config-
specific constants.

Updates #11647

Change-Id: I6db29c312556087a42e8d2bdd9af40d157c56b54
Reviewed-on: https://go-review.googlesource.com/16817
Reviewed-by: Russ Cox <rsc@golang.org>
This commit is contained in:
Michael Matloob 2015-11-11 12:39:30 -05:00
parent b5a0c67fcc
commit 432cb66f16
101 changed files with 1049 additions and 749 deletions
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25
src/runtime/heapdump.go
View file

@ -11,7 +11,10 @@
package runtime
import "unsafe"
import (
"runtime/internal/sys"
"unsafe"
)
//go:linkname runtime_debug_WriteHeapDump runtime/debug.WriteHeapDump
func runtime_debug_WriteHeapDump(fd uintptr) {
@ -233,7 +236,7 @@ func dumpbv(cbv *bitvector, offset uintptr) {
for i := uintptr(0); i < uintptr(bv.n); i++ {
if bv.bytedata[i/8]>>(i%8)&1 == 1 {
dumpint(fieldKindPtr)
dumpint(uint64(offset + i*ptrSize))
dumpint(uint64(offset + i*sys.PtrSize))
}
}
}
@ -263,7 +266,7 @@ func dumpframe(s *stkframe, arg unsafe.Pointer) bool {
var bv bitvector
if stkmap != nil && stkmap.n > 0 {
bv = stackmapdata(stkmap, pcdata)
dumpbvtypes(&bv, unsafe.Pointer(s.varp-uintptr(bv.n*ptrSize)))
dumpbvtypes(&bv, unsafe.Pointer(s.varp-uintptr(bv.n*sys.PtrSize)))
} else {
bv.n = -1
}
@ -288,7 +291,7 @@ func dumpframe(s *stkframe, arg unsafe.Pointer) bool {
dumpbv(&child.args, child.argoff)
} else {
// conservative - everything might be a pointer
for off := child.argoff; off < child.argoff+child.arglen; off += ptrSize {
for off := child.argoff; off < child.argoff+child.arglen; off += sys.PtrSize {
dumpint(fieldKindPtr)
dumpint(uint64(off))
}
@ -297,21 +300,21 @@ func dumpframe(s *stkframe, arg unsafe.Pointer) bool {
// Dump fields in the local vars section
if stkmap == nil {
// No locals information, dump everything.
for off := child.arglen; off < s.varp-s.sp; off += ptrSize {
for off := child.arglen; off < s.varp-s.sp; off += sys.PtrSize {
dumpint(fieldKindPtr)
dumpint(uint64(off))
}
} else if stkmap.n < 0 {
// Locals size information, dump just the locals.
size := uintptr(-stkmap.n)
for off := s.varp - size - s.sp; off < s.varp-s.sp; off += ptrSize {
for off := s.varp - size - s.sp; off < s.varp-s.sp; off += sys.PtrSize {
dumpint(fieldKindPtr)
dumpint(uint64(off))
}
} else if stkmap.n > 0 {
// Locals bitmap information, scan just the pointers in
// locals.
dumpbv(&bv, s.varp-uintptr(bv.n)*ptrSize-s.sp)
dumpbv(&bv, s.varp-uintptr(bv.n)*sys.PtrSize-s.sp)
}
dumpint(fieldKindEol)
@ -489,11 +492,11 @@ func dumpparams() {
} else {
dumpbool(true) // big-endian ptrs
}
dumpint(ptrSize)
dumpint(sys.PtrSize)
dumpint(uint64(mheap_.arena_start))
dumpint(uint64(mheap_.arena_used))
dumpint(thechar)
dumpstr(goexperiment)
dumpint(sys.TheChar)
dumpstr(sys.Goexperiment)
dumpint(uint64(ncpu))
}
@ -704,7 +707,7 @@ func dumpbvtypes(bv *bitvector, base unsafe.Pointer) {
func makeheapobjbv(p uintptr, size uintptr) bitvector {
// Extend the temp buffer if necessary.
nptr := size / ptrSize
nptr := size / sys.PtrSize
if uintptr(len(tmpbuf)) < nptr/8+1 {
if tmpbuf != nil {
sysFree(unsafe.Pointer(&tmpbuf[0]), uintptr(len(tmpbuf)), &memstats.other_sys)