diff options
Diffstat (limited to 'erts')
| -rw-r--r-- | erts/emulator/beam/beam_emu.c | 9 | ||||
| -rwxr-xr-x | erts/emulator/beam/erl_bif_info.c | 3 | ||||
| -rwxr-xr-x | erts/emulator/beam/global.h | 2 |
3 files changed, 14 insertions, 0 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 5781009f58..da36c4437e 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -6256,3 +6256,12 @@ erts_current_reductions(Process *current, Process *p) } } +int +erts_beam_jump_table(void) +{ +#if defined(NO_JUMP_TABLE) + return 0; +#else + return 1; +#endif +} diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c index b1dc62b4fd..e4fbd21c0e 100755 --- a/erts/emulator/beam/erl_bif_info.c +++ b/erts/emulator/beam/erl_bif_info.c @@ -2583,6 +2583,9 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1) else if (ERTS_IS_ATOM_STR("emu_args", BIF_ARG_1)) { BIF_RET(erts_get_emu_args(BIF_P)); } + else if (ERTS_IS_ATOM_STR("beam_jump_table", BIF_ARG_1)) { + BIF_RET(erts_beam_jump_table() ? am_true : am_false); + } else if (ERTS_IS_ATOM_STR("dynamic_trace", BIF_ARG_1)) { #if defined(USE_DTRACE) DECL_AM(dtrace); diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index 25aedc91c6..e5807b5ce6 100755 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -1042,6 +1042,8 @@ extern erts_driver_t vanilla_driver; extern erts_driver_t spawn_driver; extern erts_driver_t fd_driver; +int erts_beam_jump_table(void); + /* Should maybe be placed in erl_message.h, but then we get an include mess. */ ERTS_GLB_INLINE Eterm * erts_alloc_message_heap_state(Uint size, |