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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_alloc.types
parent356c33b6063de632f9c98c66260603e6edbc3ee5 (diff)
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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_alloc.types')
-rw-r--r--erts/emulator/beam/erl_alloc.types3
1 files changed, 3 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_alloc.types b/erts/emulator/beam/erl_alloc.types
index f701f71c7d..f808d3b66e 100644
--- a/erts/emulator/beam/erl_alloc.types
+++ b/erts/emulator/beam/erl_alloc.types
@@ -322,6 +322,9 @@ type SSB SHORT_LIVED PROCESSES ssb
# Types used by system specific code
#
+type TEMP_TERM TEMPORARY SYSTEM temp_term
+type LL_TEMP_TERM LONG_LIVED SYSTEM ll_temp_term
+
type DRV_TAB LONG_LIVED SYSTEM drv_tab
type DRV_EV_STATE LONG_LIVED SYSTEM driver_event_state
type DRV_EV_D_STATE FIXED_SIZE SYSTEM driver_event_data_state