Imported Upstream version 59upstream/59

1 files changed, 30 insertions, 0 deletions

diff --git a/src/pkg/runtime/plan9/os.h b/src/pkg/runtime/plan9/os.h
index 9444acc98..b2f7357ec 100644
--- a/src/pkg/runtime/plan9/os.h
+++ b/src/pkg/runtime/plan9/os.h
@@ -6,6 +6,14 @@ extern int32 runtime·write(int32 fd, void* buffer, int32 nbytes);
 extern void runtime·exits(int8* msg);
 extern int32 runtime·brk_(void*);
 
+/* open */
+enum
+{
+	OREAD			= 0,
+	OWRITE			= 1,
+	ORDWR			= 2
+};
+
 /* rfork */
 enum
 {
@@ -22,6 +30,28 @@ enum
 	RFREND          = (1<<13),
 	RFNOMNT         = (1<<14)
 };
+
+typedef struct Tos Tos;
+typedef intptr Plink;
+
+struct Tos {
+	struct			/* Per process profiling */
+	{
+		Plink	*pp;	/* known to be 0(ptr) */
+		Plink	*next;	/* known to be 4(ptr) */
+		Plink	*last;
+		Plink	*first;
+		uint32	pid;
+		uint32	what;
+	} prof;
+	uint64	cyclefreq;	/* cycle clock frequency if there is one, 0 otherwise */
+	int64	kcycles;	/* cycles spent in kernel */
+	int64	pcycles;	/* cycles spent in process (kernel + user) */
+	uint32	pid;		/* might as well put the pid here */
+	uint32	clock;
+	/* top of stack is here */
+};
+
 extern int32 runtime·rfork(int32 flags, void *stk, M *m, G *g, void (*fn)(void));
 extern int32 runtime·plan9_semacquire(uint32 *addr, int32 block);
 extern int32 runtime·plan9_semrelease(uint32 *addr, int32 count);