fix haddock submodule pointer

[ghc-hetmet.git] / rts / Interpreter.c

diff --git a/rts/Interpreter.c b/rts/Interpreter.c
index 16a8e24..ade4ad1 100644 (file)
--- a/rts/Interpreter.c
+++ b/rts/Interpreter.c
@@ -65,13 +65,13 @@
 #define BCO_LIT(n)    literals[n]
 
 #define LOAD_STACK_POINTERS                                    \
-    Sp = cap->r.rCurrentTSO->sp;                               \
+    Sp = cap->r.rCurrentTSO->stackobj->sp;                      \
     /* We don't change this ... */                             \
-    SpLim = cap->r.rCurrentTSO->stack + RESERVED_STACK_WORDS;
+    SpLim = tso_SpLim(cap->r.rCurrentTSO);
 
 #define SAVE_STACK_POINTERS                    \
     ASSERT(Sp > SpLim); \
-    cap->r.rCurrentTSO->sp = Sp
+    cap->r.rCurrentTSO->stackobj->sp = Sp
 
 #define RETURN_TO_SCHEDULER(todo,retcode)      \
    SAVE_STACK_POINTERS;                                \
@@ -266,7 +266,7 @@ eval_obj:
              debugBelch("Sp = %p\n", Sp);
              debugBelch("\n" );
 
-             printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
+             printStackChunk(Sp,cap->r.rCurrentTSO->stackobj->stack+cap->r.rCurrentTSO->stackobj->stack_size);
              debugBelch("\n\n");
             );
 
@@ -276,9 +276,7 @@ eval_obj:
     switch ( get_itbl(obj)->type ) {
 
     case IND:
-    case IND_OLDGEN:
     case IND_PERM:
-    case IND_OLDGEN_PERM:
     case IND_STATIC:
     { 
        tagged_obj = ((StgInd*)obj)->indirectee;
@@ -383,11 +381,11 @@ do_return:
              debugBelch("Returning: "); printObj(obj);
              debugBelch("Sp = %p\n", Sp);
              debugBelch("\n" );
-             printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
+             printStackChunk(Sp,cap->r.rCurrentTSO->stackobj->stack+cap->r.rCurrentTSO->stackobj->stack_size);
              debugBelch("\n\n");
             );
 
-    IF_DEBUG(sanity,checkStackChunk(Sp, cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size));
+    IF_DEBUG(sanity,checkStackChunk(Sp, cap->r.rCurrentTSO->stackobj->stack+cap->r.rCurrentTSO->stackobj->stack_size));
 
     switch (get_itbl((StgClosure *)Sp)->type) {
 
@@ -468,7 +466,7 @@ do_return:
        INTERP_TICK(it_retto_other);
        IF_DEBUG(interpreter,
                 debugBelch("returning to unknown frame -- yielding to sched\n"); 
-                printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
+                 printStackChunk(Sp,cap->r.rCurrentTSO->stackobj->stack+cap->r.rCurrentTSO->stackobj->stack_size);
            );
        Sp -= 2;
        Sp[1] = (W_)tagged_obj;
@@ -531,8 +529,8 @@ do_return_unboxed:
            INTERP_TICK(it_retto_other);
            IF_DEBUG(interpreter,
                     debugBelch("returning to unknown frame -- yielding to sched\n"); 
-                    printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
-               );
+                     printStackChunk(Sp,cap->r.rCurrentTSO->stackobj->stack+cap->r.rCurrentTSO->stackobj->stack_size);
+                );
            RETURN_TO_SCHEDULER_NO_PAUSE(ThreadRunGHC, ThreadYielding);
        }
        }
@@ -886,21 +884,15 @@ run_BCO:
                   // in a reasonable state for the GC and so that
                   // execution of this BCO can continue when we resume
                   ioAction = (StgClosure *) deRefStablePtr (rts_breakpoint_io_action);
-                  Sp -= 9;
-                  Sp[8] = (W_)obj;   
-                  Sp[7] = (W_)&stg_apply_interp_info;
-                  Sp[6] = (W_)&stg_noforceIO_info;     // see [unreg] below
+                  Sp -= 8;
+                  Sp[7] = (W_)obj;
+                  Sp[6] = (W_)&stg_apply_interp_info;
                   Sp[5] = (W_)new_aps;                 // the AP_STACK
                   Sp[4] = (W_)BCO_PTR(arg3_freeVars);  // the info about local vars of the breakpoint
                   Sp[3] = (W_)False_closure;            // True <=> a breakpoint
                   Sp[2] = (W_)&stg_ap_pppv_info;
                   Sp[1] = (W_)ioAction;                // apply the IO action to its two arguments above
                   Sp[0] = (W_)&stg_enter_info;         // get ready to run the IO action
-                  // Note [unreg]: in unregisterised mode, the return
-                  // convention for IO is different.  The
-                  // stg_noForceIO_info stack frame is necessary to
-                  // account for this difference.
-
                   // set the flag in the TSO to say that we are now
                   // stopping at a breakpoint so that when we resume
                   // we don't stop on the same breakpoint that we
@@ -1364,6 +1356,7 @@ run_BCO:
            void *tok;
            int stk_offset            = BCO_NEXT;
            int o_itbl                = BCO_NEXT;
+           int interruptible         = BCO_NEXT;
            void(*marshall_fn)(void*) = (void (*)(void*))BCO_LIT(o_itbl);
            int ret_dyn_size = 
                RET_DYN_BITMAP_SIZE + RET_DYN_NONPTR_REGS_SIZE
@@ -1452,7 +1445,7 @@ run_BCO:
             ((StgRetDyn *)Sp)->payload[0] = (StgClosure *)obj;
 
            SAVE_STACK_POINTERS;
-           tok = suspendThread(&cap->r);
+           tok = suspendThread(&cap->r, interruptible ? rtsTrue : rtsFalse);
 
            // We already made a copy of the arguments above.
             ffi_call(cif, fn, ret, argptrs);
@@ -1461,6 +1454,14 @@ run_BCO:
            cap = (Capability *)((void *)((unsigned char*)resumeThread(tok) - STG_FIELD_OFFSET(Capability,r)));
            LOAD_STACK_POINTERS;
 
+            if (Sp[0] != (W_)&stg_gc_gen_info) {
+                // the stack is not how we left it.  This probably
+                // means that an exception got raised on exit from the
+                // foreign call, so we should just continue with
+                // whatever is on top of the stack now.
+                RETURN_TO_SCHEDULER_NO_PAUSE(ThreadRunGHC, ThreadYielding);
+            }
+
             // Re-load the pointer to the BCO from the RET_DYN frame,
             // it might have moved during the call.  Also reload the
             // pointers to the components of the BCO.