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| author | Sverker Eriksson <[email protected]> | 2017-02-20 20:06:28 +0100 |
|---|---|---|
| committer | Sverker Eriksson <[email protected]> | 2017-02-20 20:06:28 +0100 |
| commit | 82d3513f95198b0a4295ba866a78ae6c137a34d5 (patch) | |
| tree | b45aee60996f1054e15308defddc8e96e8ef91b8 /erts/emulator/beam/erl_vm.h | |
| parent | 5adbf961a3c79a6782f8be8336ec26594754e9e8 (diff) | |
| parent | 32a74e6c83cd110b8e8ab714be4365c0da558fca (diff) | |
| download | otp-82d3513f95198b0a4295ba866a78ae6c137a34d5.tar.gz otp-82d3513f95198b0a4295ba866a78ae6c137a34d5.tar.bz2 otp-82d3513f95198b0a4295ba866a78ae6c137a34d5.zip | |
Merge branch 'master' into sverker/enif_select
Conflicts:
erts/emulator/beam/erl_binary.h
erts/emulator/beam/erl_monitors.c
erts/emulator/beam/erl_nif.c
erts/emulator/beam/global.h
erts/emulator/test/nif_SUITE_data/nif_SUITE.c
Diffstat (limited to 'erts/emulator/beam/erl_vm.h')
| -rw-r--r-- | erts/emulator/beam/erl_vm.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/erts/emulator/beam/erl_vm.h b/erts/emulator/beam/erl_vm.h index d88cafc5bf..5366ee3644 100644 --- a/erts/emulator/beam/erl_vm.h +++ b/erts/emulator/beam/erl_vm.h @@ -110,8 +110,21 @@ #define HeapWordsLeft(p) (HEAP_LIMIT(p) - HEAP_TOP(p)) #if defined(DEBUG) || defined(CHECK_FOR_HOLES) -# define ERTS_HOLE_MARKER (((0xdeadbeef << 24) << 8) | 0xdeadbeef) -#endif /* egil: 32-bit ? */ + +/* + * ERTS_HOLE_MARKER must *not* be mistaken for a valid term + * on the heap... + */ +# ifdef ARCH_64 +# define ERTS_HOLE_MARKER \ + make_catch(UWORD_CONSTANT(0xdeadbeaf00000000) >> _TAG_IMMED2_SIZE) +/* Will (at the time of writing) appear as 0xdeadbeaf0000001b */ +# else +# define ERTS_HOLE_MARKER \ + make_catch(UWORD_CONSTANT(0xdead0000) >> _TAG_IMMED2_SIZE) +/* Will (at the time of writing) appear as 0xdead001b */ +# endif +#endif /* * Allocate heap memory on the ordinary heap, NEVER in a heap |