aboutsummaryrefslogtreecommitdiffstats
path: root/erts/emulator/beam/erl_debug.h
diff options
context:
space:
mode:
authorPatrik Nyblom <[email protected]>2009-12-07 15:25:32 +0100
committerBjörn Gustavsson <[email protected]>2010-03-10 14:23:54 +0100
commit5a8e6c4183a30f3b10de22fa5ba80950dfb2adea (patch)
tree1b1830bf144427531d7be5aa968e02bb2e67539e /erts/emulator/beam/erl_debug.h
parent356c33b6063de632f9c98c66260603e6edbc3ee5 (diff)
downloadotp-5a8e6c4183a30f3b10de22fa5ba80950dfb2adea.tar.gz
otp-5a8e6c4183a30f3b10de22fa5ba80950dfb2adea.tar.bz2
otp-5a8e6c4183a30f3b10de22fa5ba80950dfb2adea.zip
Fit all heap data into the 32-bit address range
This is the first step in the implementation of the half-word emulator, a 64-bit emulator where all pointers to heap data will be stored in 32-bit words. Code specific for this emulator variant is conditionally compiled when the HALFWORD_HEAP define has a non-zero value. First force all pointers to heap data to fall into a single 32-bit range, but still store them in 64-bit words. Temporary term data stored on C stack is moved into scheduler specific storage (allocated as heaps) and macros are added to make this happen only in emulators where this is needed. For a vanilla VM the temporary terms are still stored on the C stack.
Diffstat (limited to 'erts/emulator/beam/erl_debug.h')
-rw-r--r--erts/emulator/beam/erl_debug.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/erts/emulator/beam/erl_debug.h b/erts/emulator/beam/erl_debug.h
index 74f4a00b63..b69f2c52cd 100644
--- a/erts/emulator/beam/erl_debug.h
+++ b/erts/emulator/beam/erl_debug.h
@@ -18,9 +18,10 @@
*/
#ifndef _ERL_DEBUG_H_
#define _ERL_DEBUG_H_
-
#ifdef DEBUG
+#include "erl_term.h"
+
#ifdef HIPE
#include "hipe_debug.h"
#endif
@@ -92,6 +93,11 @@ extern void print_tagged_memory(Eterm *start, Eterm *end);
extern void print_untagged_memory(Eterm *start, Eterm *end);
extern void print_memory(Process *p);
extern void print_memory_info(Process *p);
+#if defined(DEBUG) && !HEAP_ON_C_STACK
+extern Eterm *erts_debug_allocate_tmp_heap(int, Process *);
+extern void erts_debug_use_tmp_heap(int, Process *);
+extern void erts_debug_unuse_tmp_heap(int, Process *);
+#endif
#ifdef HYBRID
extern void print_ma_info(void);