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-rw-r--r--erts/emulator/hipe/hipe_bif0.c52
1 files changed, 8 insertions, 44 deletions
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