Merge branch 'dev' into bmk/snmp/support_ipv6_transport_address

14 files changed, 53 insertions, 83 deletions

diff --git a/erts/emulator/hipe/hipe_arm_glue.S b/erts/emulator/hipe/hipe_arm_glue.S
index 2bce01954e..8c1c55b216 100644
--- a/erts/emulator/hipe/hipe_arm_glue.S
+++ b/erts/emulator/hipe/hipe_arm_glue.S
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2005-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2005-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
diff --git a/erts/emulator/hipe/hipe_bif0.c b/erts/emulator/hipe/hipe_bif0.c
index 2a877d8ace..e7fb850530 100644
--- a/erts/emulator/hipe/hipe_bif0.c
+++ b/erts/emulator/hipe/hipe_bif0.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2001-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -450,52 +450,13 @@ BIF_RETTYPE hipe_bifs_alloc_data_2(BIF_ALIST_2)
 }
 
 /*
- * Memory area for constant Erlang terms.
- *
- * These constants must not be forwarded by the gc.
- * Therefore, the gc needs to be able to distinguish between
- * collectible objects and constants. Unfortunately, an Erlang
- * process' collectible objects are scattered around in two
- * heaps and a list of message buffers, so testing "is X a
- * collectible object?" can be expensive.
- *
- * Instead, constants are placed in a single contiguous area,
- * which allows for an inexpensive "is X a constant?" test.
- *
- * XXX: Allow this area to be grown.
+ * Statistics on hipe constants: size of HiPE constants, in words.
  */
-
-/* not static, needed by garbage collector */
-Eterm *hipe_constants_start = NULL;
-Eterm *hipe_constants_next = NULL;
-static unsigned constants_avail_words = 0;
-#define CONSTANTS_BYTES	(1536*1024*sizeof(Eterm))  /* 1.5 M words */
-
-static Eterm *constants_alloc(unsigned nwords)
-{
-    Eterm *next;
-
-    /* initialise at the first call */
-    if ((next = hipe_constants_next) == NULL) {
-	next = (Eterm*)erts_alloc(ERTS_ALC_T_HIPE, CONSTANTS_BYTES);
-	hipe_constants_start = next;
-	hipe_constants_next = next;
-	constants_avail_words = CONSTANTS_BYTES / sizeof(Eterm);
-    }
-    if (nwords > constants_avail_words) {
-	fprintf(stderr, "Native code constants pool depleted!\r\n");
-	/* Must terminate immediately. erl_exit() seems to
-	   continue running some code which then SIGSEGVs. */
-	exit(1);
-    }
-    constants_avail_words -= nwords;
-    hipe_constants_next = next + nwords;
-    return next;
-}
+unsigned int hipe_constants_size = 0;
 
 BIF_RETTYPE hipe_bifs_constants_size_0(BIF_ALIST_0)
 {
-    BIF_RET(make_small(hipe_constants_next - hipe_constants_start));
+    BIF_RET(make_small(hipe_constants_size));
 }
 
 /*
@@ -526,14 +487,17 @@ static void *const_term_alloc(void *tmpl)
 {
     Eterm obj;
     Uint size;
+    Uint alloc_size;
     Eterm *hp;
     struct const_term *p;
 
     obj = (Eterm)tmpl;
     ASSERT(is_not_immed(obj));
     size = size_object(obj);
+    alloc_size = size + (offsetof(struct const_term, mem)/sizeof(Eterm));
+    hipe_constants_size += alloc_size;
 
-    p = (struct const_term*)constants_alloc(size + (offsetof(struct const_term, mem)/sizeof(Eterm)));
+    p = (struct const_term*)erts_alloc(ERTS_ALC_T_HIPE, alloc_size * sizeof(Eterm));
 
     /* I have absolutely no idea if having a private 'off_heap'
        works or not. _Some_ off_heap object is required for
diff --git a/erts/emulator/hipe/hipe_bif0.h b/erts/emulator/hipe/hipe_bif0.h
index ed27d5616a..c5c1c30619 100644
--- a/erts/emulator/hipe/hipe_bif0.h
+++ b/erts/emulator/hipe/hipe_bif0.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -26,10 +26,6 @@
 
 extern Uint *hipe_bifs_find_pc_from_mfa(Eterm mfa);
 
-/* shared with ggc.c -- NOT an official API */
-extern Eterm *hipe_constants_start;
-extern Eterm *hipe_constants_next;
-
 extern void hipe_mfa_info_table_init(void);
 extern void *hipe_get_remote_na(Eterm m, Eterm f, unsigned int a);
 extern Eterm hipe_find_na_or_make_stub(Process*, Eterm, Eterm, Eterm);
diff --git a/erts/emulator/hipe/hipe_bif1.c b/erts/emulator/hipe/hipe_bif1.c
index 8f43811537..2369ad4fa8 100644
--- a/erts/emulator/hipe/hipe_bif1.c
+++ b/erts/emulator/hipe/hipe_bif1.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
diff --git a/erts/emulator/hipe/hipe_bif2.c b/erts/emulator/hipe/hipe_bif2.c
index f992b758be..6bcd5046e9 100644
--- a/erts/emulator/hipe/hipe_bif2.c
+++ b/erts/emulator/hipe/hipe_bif2.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -33,7 +33,6 @@
 #include "big.h"
 #include "hipe_debug.h"
 #include "hipe_mode_switch.h"
-#include "hipe_bif0.h" /* hipe_constants_{start,next} */
 #include "hipe_arch.h"
 #include "hipe_stack.h"
 
@@ -124,18 +123,6 @@ BIF_RETTYPE hipe_bifs_show_term_1(BIF_ALIST_1)
     BIF_RET(am_true);
 }
 
-BIF_RETTYPE hipe_bifs_show_literals_0(BIF_ALIST_0)
-{
-    Eterm *p;
-
-    p = hipe_constants_start;
-    for (; p < hipe_constants_next; ++p)
-	printf("0x%0*lx: 0x%0*lx\r\n",
-	       2*(int)sizeof(long), (unsigned long)p,
-	       2*(int)sizeof(long), *p);
-    BIF_RET(am_true);
-}
-
 BIF_RETTYPE hipe_bifs_in_native_0(BIF_ALIST_0)
 {
     BIF_RET(am_false);
diff --git a/erts/emulator/hipe/hipe_bif2.tab b/erts/emulator/hipe/hipe_bif2.tab
index d8d627e370..51323ce7af 100644
--- a/erts/emulator/hipe/hipe_bif2.tab
+++ b/erts/emulator/hipe/hipe_bif2.tab
@@ -1,7 +1,7 @@
 #
 # %CopyrightBegin%
 # 
-# Copyright Ericsson AB 2001-2009. All Rights Reserved.
+# Copyright Ericsson AB 2001-2011. All Rights Reserved.
 # 
 # The contents of this file are subject to the Erlang Public License,
 # Version 1.1, (the "License"); you may not use this file except in
@@ -26,7 +26,6 @@ bif hipe_bifs:show_nstack/1
 bif hipe_bifs:nstack_used_size/0
 bif hipe_bifs:show_pcb/1
 bif hipe_bifs:show_term/1
-bif hipe_bifs:show_literals/0
 bif hipe_bifs:in_native/0
 bif hipe_bifs:modeswitch_debug_on/0
 bif hipe_bifs:modeswitch_debug_off/0
diff --git a/erts/emulator/hipe/hipe_gc.c b/erts/emulator/hipe/hipe_gc.c
index 6c9e1d9ba7..a8b6c20dd0 100644
--- a/erts/emulator/hipe/hipe_gc.c
+++ b/erts/emulator/hipe/hipe_gc.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  *
- * Copyright Ericsson AB 2004-2010. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
  *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -28,7 +28,6 @@
 
 #include "hipe_stack.h"
 #include "hipe_gc.h"
-#include "hipe_bif0.h"		/* for hipe_constants_{start,next} */
 
 Eterm *fullsweep_nstack(Process *p, Eterm *n_htop)
 {
diff --git a/erts/emulator/hipe/hipe_mkliterals.c b/erts/emulator/hipe/hipe_mkliterals.c
index 900dfc5a8a..25e21ed79e 100644
--- a/erts/emulator/hipe/hipe_mkliterals.c
+++ b/erts/emulator/hipe/hipe_mkliterals.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index e5de244d25..53ebcd4008 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -208,6 +208,8 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 #endif
 
     p->i = NULL;
+    /* Set current_function to undefined. stdlib hibernate tests rely on it. */
+    p->current = NULL;
 
     DPRINTF("cmd == %#x (%s)", cmd, code_str(cmd));
     HIPE_CHECK_PCB(p);
@@ -322,20 +324,31 @@ Process *hipe_mode_switch(Process *p, unsigned cmd, Eterm reg[])
 	   * We need to remove the BIF's parameters from the native
 	   * stack: to this end hipe_${ARCH}_glue.S stores the BIF's
 	   * arity in p->hipe.narity.
+	   *
+	   * If the BIF emptied the stack (typically hibernate), p->hipe.nsp is
+	   * NULL and there is no need to get rid of stacked parameters.
 	   */
-	  unsigned int i, is_recursive, callee_arity;
+	  unsigned int i, is_recursive = 0;
 
 	  /* Save p->arity, then update it with the original BIF's arity.
 	     Get rid of any stacked parameters in that call. */
 	  /* XXX: hipe_call_from_native_is_recursive() copies data to
 	     reg[], which is useless in the TRAP case. Maybe write a
 	     specialised hipe_trap_from_native_is_recursive() later. */
-	  callee_arity = p->arity;
-	  p->arity = p->hipe.narity; /* caller's arity */
-	  is_recursive = hipe_call_from_native_is_recursive(p, reg);
-
-	  p->i = (Eterm *)(p->def_arg_reg[3]);
-	  p->arity = callee_arity;
+          if (p->hipe.nsp != NULL) {
+	      unsigned int callee_arity;
+	      callee_arity = p->arity;
+	      p->arity = p->hipe.narity; /* caller's arity */
+	      is_recursive = hipe_call_from_native_is_recursive(p, reg);
+
+	      p->i = (Eterm *)(p->def_arg_reg[3]);
+	      p->arity = callee_arity;
+          }
+
+	  /* If process is in P_WAITING state, we schedule the next process */
+	  if (p->status == P_WAITING) {
+	      goto do_schedule;
+	  }
 
 	  for (i = 0; i < p->arity; ++i)
 	      reg[i] = p->def_arg_reg[i];
@@ -592,6 +605,17 @@ void hipe_inc_nstack(Process *p)
 }
 #endif
 
+void hipe_empty_nstack(Process *p)
+{
+    if (p->hipe.nstack) {
+	erts_free(ERTS_ALC_T_HIPE, p->hipe.nstack);
+    }
+    p->hipe.nstgraylim = NULL;
+    p->hipe.nsp = NULL;
+    p->hipe.nstack = NULL;
+    p->hipe.nstend = NULL;
+}
+
 static void hipe_check_nstack(Process *p, unsigned nwords)
 {
     while (hipe_nstack_avail(p) < nwords)
diff --git a/erts/emulator/hipe/hipe_mode_switch.h b/erts/emulator/hipe/hipe_mode_switch.h
index 187b9145e2..e0c6c1b5f5 100644
--- a/erts/emulator/hipe/hipe_mode_switch.h
+++ b/erts/emulator/hipe/hipe_mode_switch.h
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
@@ -54,6 +54,7 @@ void hipe_mode_switch_init(void);
 void hipe_set_call_trap(Uint *bfun, void *nfun, int is_closure);
 Process *hipe_mode_switch(Process*, unsigned, Eterm*);
 void hipe_inc_nstack(Process *p);
+void hipe_empty_nstack(Process *p);
 void hipe_set_closure_stub(ErlFunEntry *fe, unsigned num_free);
 Eterm hipe_build_stacktrace(Process *p, struct StackTrace *s);
 
diff --git a/erts/emulator/hipe/hipe_ppc_glue.S b/erts/emulator/hipe/hipe_ppc_glue.S
index c010f4f047..c766099102 100644
--- a/erts/emulator/hipe/hipe_ppc_glue.S
+++ b/erts/emulator/hipe/hipe_ppc_glue.S
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2004-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2004-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
diff --git a/erts/emulator/hipe/hipe_sparc_glue.S b/erts/emulator/hipe/hipe_sparc_glue.S
index 73cefd4896..aa07137116 100644
--- a/erts/emulator/hipe/hipe_sparc_glue.S
+++ b/erts/emulator/hipe/hipe_sparc_glue.S
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
diff --git a/erts/emulator/hipe/hipe_x86_glue.S b/erts/emulator/hipe/hipe_x86_glue.S
index 43392111fe..af2d0cb970 100644
--- a/erts/emulator/hipe/hipe_x86_glue.S
+++ b/erts/emulator/hipe/hipe_x86_glue.S
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
diff --git a/erts/emulator/hipe/hipe_x86_signal.c b/erts/emulator/hipe/hipe_x86_signal.c
index 0c61e7bf96..e515f1cd60 100644
--- a/erts/emulator/hipe/hipe_x86_signal.c
+++ b/erts/emulator/hipe/hipe_x86_signal.c
@@ -1,7 +1,7 @@
 /*
  * %CopyrightBegin%
  * 
- * Copyright Ericsson AB 2001-2009. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2011. All Rights Reserved.
  * 
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in