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| author | Sverker Eriksson <[email protected]> | 2010-07-22 15:31:51 +0200 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2010-07-22 15:31:51 +0200 |
| commit | 78bb45a531e9218e19e6faebd666355752fbfdb3 (patch) | |
| tree | 8ded6b9e6d078ebc8ce6e1ef1def3f176582857a /erts/emulator/beam/erl_term.h | |
| parent | 9267b2dc792c0a7632a0dcdc0a49510eb13e465e (diff) | |
| download | otp-78bb45a531e9218e19e6faebd666355752fbfdb3.tar.gz otp-78bb45a531e9218e19e6faebd666355752fbfdb3.tar.bz2 otp-78bb45a531e9218e19e6faebd666355752fbfdb3.zip | |
Mending halfword heap emulator
Diffstat (limited to 'erts/emulator/beam/erl_term.h')
| -rw-r--r-- | erts/emulator/beam/erl_term.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/erts/emulator/beam/erl_term.h b/erts/emulator/beam/erl_term.h index 0fb2362abd..b8e4473141 100644 --- a/erts/emulator/beam/erl_term.h +++ b/erts/emulator/beam/erl_term.h @@ -821,10 +821,10 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_ref_node,Eterm) * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |A A A A A A A A A A A A A A A A A A A A A A A A A A|t t t t|0 0| Thing * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * |N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N| Next - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E| ErlNode * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * |N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N| Next + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * |X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X| Data 0 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * . . . @@ -835,7 +835,7 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_ref_node,Eterm) * t : External pid thing tag (1100) * t : External port thing tag (1101) * t : External ref thing tag (1110) - * N : Next (external thing) pointer + * N : Next (off_heap) pointer * E : ErlNode pointer * X : Type specific data * @@ -852,8 +852,11 @@ _ET_DECLARE_CHECKED(struct erl_node_*,internal_ref_node,Eterm) /* XXX:PaN - this structure is not perfect for halfword heap, it takes a lot of memory due to padding, and the array will not begin at the end of the structure, as otherwise expected. Be sure to access data.ui32 array and not try - to do pointer manipulation on an Eterm * to reach the actual data... */ + to do pointer manipulation on an Eterm * to reach the actual data... + XXX:Sverk - Problem made worse by "one off-heap list" when 'next' pointer + must align with 'next' in ProcBin, erl_fun_thing and erl_off_heap_header. +*/ typedef struct external_thing_ { /* ----+ */ Eterm header; /* | */ |