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-rw-r--r--erts/emulator/sys/common/erl_mseg.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/erts/emulator/sys/common/erl_mseg.c b/erts/emulator/sys/common/erl_mseg.c
index f0fbb682b0..f373302e65 100644
--- a/erts/emulator/sys/common/erl_mseg.c
+++ b/erts/emulator/sys/common/erl_mseg.c
@@ -31,6 +31,7 @@
# include "config.h"
#endif
+#define ERTS_WANT_MEM_MAPPERS
#include "sys.h"
#include "erl_mseg.h"
#include "global.h"
@@ -1402,6 +1403,12 @@ erts_mseg_init(ErtsMsegInit_t *init)
erts_mtx_init(&init_atoms_mutex, "mseg_init_atoms");
+#ifdef ERTS_ALC_A_EXEC
+ /* Initialize erts_exec_mapper *FIRST*, to increase probability
+ * of getting low memory for HiPE AMD64's small code model.
+ */
+ erts_mmap_init(&erts_exec_mmapper, &init->exec_mmap, 1);
+#endif
erts_mmap_init(&erts_dflt_mmapper, &init->dflt_mmap, 0);
#if defined(ARCH_64) && defined(ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION)
erts_mmap_init(&erts_literal_mmapper, &init->literal_mmap, 0);