runtime: add lr, ctxt, ret to Gobuf
Add gostartcall and gostartcallfn.
The old gogocall = gostartcall + gogo.
The old gogocallfn = gostartcallfn + gogo.
R=dvyukov, minux.ma
CC=golang-dev
https://golang.org/cl/10036044
diff --git a/src/pkg/runtime/runtime.h b/src/pkg/runtime/runtime.h
index cbaff4b..f004f1a 100644
--- a/src/pkg/runtime/runtime.h
+++ b/src/pkg/runtime/runtime.h
@@ -209,10 +209,13 @@
};
struct Gobuf
{
- // The offsets of these fields are known to (hard-coded in) libmach.
+ // The offsets of sp, pc, and g are known to (hard-coded in) libmach.
uintptr sp;
uintptr pc;
G* g;
+ uintptr ret;
+ void* ctxt;
+ uintptr lr;
};
struct GCStats
{
@@ -238,7 +241,6 @@
uintptr gcguard; // if status==Gsyscall, gcguard = stackguard to use during gc
uintptr stackguard; // same as stackguard0, but not set to StackPreempt
uintptr stack0;
- FuncVal* fnstart; // initial function
G* alllink; // on allg
void* param; // passed parameter on wakeup
int16 status;
@@ -671,6 +673,7 @@
int32 runtime·gentraceback(uintptr, uintptr, uintptr, G*, int32, uintptr*, int32, void(*)(Stkframe*, void*), void*);
void runtime·traceback(uintptr pc, uintptr sp, uintptr lr, G* gp);
void runtime·tracebackothers(G*);
+bool runtime·haszeroargs(uintptr pc);
/*
* external data
@@ -711,9 +714,9 @@
*/
#define FLUSH(x) USED(x)
-void runtime·gogo(Gobuf*, uintptr);
-void runtime·gogocall(Gobuf*, void(*)(void), uintptr);
-void runtime·gogocallfn(Gobuf*, FuncVal*);
+void runtime·gogo(Gobuf*);
+void runtime·gostartcall(Gobuf*, void(*)(void), void*);
+void runtime·gostartcallfn(Gobuf*, FuncVal*);
void runtime·gosave(Gobuf*);
void runtime·lessstack(void);
void runtime·goargs(void);
