final batch for "declared and not used"

 * update mksyscall.sh and rebuild syscall/z*.go
 * fix a few linux-only files

R=r
DELTA=455  (12 added, 1 deleted, 442 changed)
OCL=34637
CL=34655

1 files changed, 3 insertions, 4 deletions

diff --git a/src/pkg/debug/proc/proc_linux.go b/src/pkg/debug/proc/proc_linux.go
index a3ee088ad1..8fb147ddc2 100644
--- a/src/pkg/debug/proc/proc_linux.go
+++ b/src/pkg/debug/proc/proc_linux.go
@@ -421,7 +421,6 @@ func (p *process) uninstallBreakpoints() os.Error {
 // event.
 func (t *thread) wait() {
 	for {
-		var err os.Error;
 		var ev debugEvent;
 		ev.t = t;
 		t.logTrace("beginning wait");
@@ -764,7 +763,7 @@ func (p *process) do(f func () os.Error) os.Error {
 // stopMonitor stops the monitor with the given error.  If the monitor
 // is already stopped, does nothing.
 func (p *process) stopMonitor(err os.Error) {
-	doNotBlock := p.stopReq <- err;
+	_ = p.stopReq <- err;	// do not block
 	// TODO(austin) Wait until monitor has exited?
 }
 
@@ -1215,7 +1214,7 @@ func (p *process) attachAllThreads() os.Error {
 				continue;
 			}
 
-			t, err := p.attachThread(tid);
+			_, err = p.attachThread(tid);
 			if err != nil {
 				// There could have been a race, or
 				// this process could be a zobmie.
@@ -1309,7 +1308,7 @@ func ForkExec(argv0 string, argv []string, envv []string, dir string, fd []*os.F
 		p.pid = pid;
 
 		// The process will raise SIGTRAP when it reaches execve.
-		t, err := p.newThread(pid, syscall.SIGTRAP, false);
+		_, err := p.newThread(pid, syscall.SIGTRAP, false);
 		return err;
 	});
 	if err != nil {