From 79abd75445dec4f1932868fcc52238a84d94cce0 Mon Sep 17 00:00:00 2001 From: Sverker Eriksson Date: Fri, 21 Oct 2016 16:42:30 +0200 Subject: erts: Use mprotect for hipe on all arch except x86_64 Only x86_64 needs to reserve low virtual memory for its amd64 small code model. --- erts/emulator/sys/common/erl_mmap.h | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'erts/emulator/sys/common/erl_mmap.h') diff --git a/erts/emulator/sys/common/erl_mmap.h b/erts/emulator/sys/common/erl_mmap.h index 92e9eb9e41..1049f7affc 100644 --- a/erts/emulator/sys/common/erl_mmap.h +++ b/erts/emulator/sys/common/erl_mmap.h @@ -157,13 +157,23 @@ Eterm erts_mmap_info_options(ErtsMemMapper*, # include "erl_alloc_types.h" extern ErtsMemMapper erts_dflt_mmapper; -# if defined(ARCH_64) && defined(ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION) + +# if defined(ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION) + +# if defined(ARCH_64) extern ErtsMemMapper erts_literal_mmapper; -# ifdef ERTS_ALC_A_EXEC -# define ERTS_HAVE_EXEC_MMAPPER +# endif + +# if defined(ERTS_ALC_A_EXEC) && defined(__x86_64__) + /* + * On x86_64, exec_alloc employs its own super carrier 'erts_exec_mmaper' + * to ensure low memory for HiPE AMD64 small code model. + */ +# define ERTS_HAVE_EXEC_MMAPPER extern ErtsMemMapper erts_exec_mmapper; -# endif # endif + +# endif /* ERTS_HAVE_OS_PHYSICAL_MEMORY_RESERVATION */ #endif /* ERTS_WANT_MEM_MAPPERS */ /*#define HARD_DEBUG_MSEG*/ -- cgit v1.2.3