[dev.garbage] all: merge dev.cc (723ca3789b88) into dev.garbage

Brings in Linux time signature fixes. Should fix build.

TBR=austin
CC=golang-codereviews
https://golang.org/cl/176870043

src/liblink/asm9.c

@@ -498,7 +498,6 @@ span9(Link *ctxt, LSym *cursym)
 	if(oprange[AANDN].start == nil)
  		buildop(ctxt);
 
-	bflag = 0;
 	c = 0;	
 	p->pc = c;
 

src/liblink/list9.c

@@ -256,9 +256,9 @@ Dconv(Fmt *fp)
 			//if(v >= INITTEXT)
 			//	v -= INITTEXT-HEADR;
 			if(a->sym != nil)
-				sprint(str, "%s+%.5lux(BRANCH)", a->sym->name, v);
+				sprint(str, "%s+%.5ux(BRANCH)", a->sym->name, v);
 			else
-				sprint(str, "%.5lux(BRANCH)", v);
+				sprint(str, "%.5ux(BRANCH)", v);
 		} else if(a->u.branch != nil)
 			sprint(str, "%lld", a->u.branch->pc);
 		else if(a->sym != nil)
@@ -316,7 +316,7 @@ Mconv(Fmt *fp)
 		if(a->offset != 0)
 			sprint(str, "%s+%lld(SB)", s->name, a->offset);
 		else
-			sprint(str, "%s(SB)", s->name, a->offset);
+			sprint(str, "%s(SB)", s->name);
 		break;
 
 	case D_STATIC:

src/liblink/obj9.c

@@ -202,7 +202,7 @@ addstacksplit(Link *ctxt, LSym *cursym)
 	Prog *p, *q, *p1, *p2, *q1;
 	int o, mov, aoffset;
 	vlong textstksiz, textarg;
-	int32 autoffset, autosize;
+	int32 autosize;
 
 	if(ctxt->symmorestack[0] == nil) {
 		ctxt->symmorestack[0] = linklookup(ctxt, "runtime.morestack", 0);
@@ -217,9 +217,6 @@ addstacksplit(Link *ctxt, LSym *cursym)
 
 	p = cursym->text;
 	parsetextconst(p->to.offset, &textstksiz, &textarg);
-	autoffset = textstksiz;
-	if(autoffset < 0)
-		autoffset = 0;
 	
 	cursym->args = p->to.offset>>32;
 	cursym->locals = textstksiz;

src/runtime/defs_dragonfly_amd64.go

@@ -180,8 +180,8 @@ type timespec struct {
 	tv_nsec int64
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = int64(x)
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = x
 }
 
 type timeval struct {

src/runtime/defs_freebsd_386.go

@@ -185,8 +185,8 @@ type timespec struct {
 	tv_nsec int32
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = x
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = int32(x)
 }
 
 type timeval struct {

src/runtime/defs_freebsd_amd64.go

@@ -196,8 +196,8 @@ type timespec struct {
 	tv_nsec int64
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = int64(x)
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = x
 }
 
 type timeval struct {

src/runtime/defs_freebsd_arm.go

@@ -157,8 +157,8 @@ type timespec struct {
 	pad_cgo_0 [4]byte
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = int64(x)
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = x
 }
 
 type timeval struct {

src/runtime/defs_linux_386.go

@@ -130,8 +130,8 @@ type timespec struct {
 	tv_nsec int32
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = x
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = int32(x)
 }
 
 func (ts *timespec) set_nsec(x int32) {

src/runtime/defs_linux_amd64.go

@@ -92,8 +92,8 @@ type timespec struct {
 	tv_nsec int64
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = int64(x)
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = x
 }
 
 func (ts *timespec) set_nsec(x int32) {

src/runtime/defs_linux_arm.go

@@ -84,8 +84,8 @@ type timespec struct {
 	tv_nsec int32
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = x
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = int32(x)
 }
 
 func (ts *timespec) set_nsec(x int32) {

src/runtime/defs_openbsd_386.go

@@ -138,8 +138,8 @@ type timespec struct {
 	tv_nsec int32
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = int64(x)
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = x
 }
 
 func (ts *timespec) set_nsec(x int32) {

src/runtime/defs_openbsd_amd64.go

@@ -149,8 +149,8 @@ type timespec struct {
 	tv_nsec int64
 }
 
-func (ts *timespec) set_sec(x int32) {
-	ts.tv_sec = int64(x)
+func (ts *timespec) set_sec(x int64) {
+	ts.tv_sec = x
 }
 
 func (ts *timespec) set_nsec(x int32) {

src/runtime/os_linux_arm.go

@@ -50,9 +50,12 @@ func setup_auxv(argc int32, argv **byte) {
 
 	for i := 0; auxv[i] != _AT_NULL; i += 2 {
 		switch auxv[i] {
-		case _AT_RANDOM: // kernel provided 16-byte worth of random data
+		case _AT_RANDOM: // kernel provides a pointer to 16-bytes worth of random data
 			if auxv[i+1] != 0 {
-				randomNumber = *(*uint32)(unsafe.Pointer(uintptr(auxv[i+1])))
+				// the pointer provided may not be word alined, so we must to treat it
+				// as a byte array.
+				rnd := (*[16]byte)(unsafe.Pointer(uintptr(auxv[i+1])))
+				randomNumber = uint32(rnd[0]) | uint32(rnd[1])<<8 | uint32(rnd[2])<<16 | uint32(rnd[3])<<24
 			}
 
 		case _AT_PLATFORM: // v5l, v6l, v7l

src/runtime/softfloat_arm.go

@@ -605,10 +605,11 @@ done:
 }
 
 //go:nosplit
-func _sfloat2(pc uint32, regs *[15]uint32) {
+func _sfloat2(pc uint32, regs [15]uint32) (newpc uint32) {
 	systemstack(func() {
-		pc = sfloat2(pc, regs)
+		newpc = sfloat2(pc, &regs)
 	})
+	return
 }
 
 func _sfloatpanic()