diff options
Diffstat (limited to 'erts/emulator/beam')
-rw-r--r-- | erts/emulator/beam/beam_emu.c | 2 | ||||
-rw-r--r-- | erts/emulator/beam/erl_nif.c | 16 | ||||
-rw-r--r-- | erts/emulator/beam/global.h | 1 |
3 files changed, 15 insertions, 4 deletions
diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 8bfb7d2ad2..d352528059 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -3523,6 +3523,8 @@ get_map_elements_fail: erts_pre_nif(&env, c_p, (struct erl_module_nif*)I[2]); reg[0] = r(0); nif_bif_result = (*fp)(&env, bif_nif_arity, reg); + if (env.exception_thrown) + nif_bif_result = THE_NON_VALUE; erts_post_nif(&env); } ASSERT(!ERTS_PROC_IS_EXITING(c_p) || is_non_value(nif_bif_result)); diff --git a/erts/emulator/beam/erl_nif.c b/erts/emulator/beam/erl_nif.c index adc3520ebb..ec82ef251e 100644 --- a/erts/emulator/beam/erl_nif.c +++ b/erts/emulator/beam/erl_nif.c @@ -127,6 +127,7 @@ void erts_pre_nif(ErlNifEnv* env, Process* p, struct erl_module_nif* mod_nif) env->heap_frag = NULL; env->fpe_was_unmasked = erts_block_fpe(); env->tmp_obj_list = NULL; + env->exception_thrown = 0; } static void pre_nif_noproc(ErlNifEnv* env, struct erl_module_nif* mod_nif) @@ -742,6 +743,7 @@ Eterm enif_make_sub_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term, Eterm enif_make_badarg(ErlNifEnv* env) { + env->exception_thrown = 1; BIF_ERROR(env->proc, BADARG); } @@ -964,7 +966,10 @@ ERL_NIF_TERM enif_make_uint64(ErlNifEnv* env, ErlNifUInt64 i) ERL_NIF_TERM enif_make_double(ErlNifEnv* env, double d) { - Eterm* hp = alloc_heap(env,FLOAT_SIZE_OBJECT); + Eterm* hp; + if (!isfinite(d)) + return enif_make_badarg(env); + hp = alloc_heap(env,FLOAT_SIZE_OBJECT); FloatDef f; f.fd = d; PUT_DOUBLE(f, hp); @@ -978,6 +983,8 @@ ERL_NIF_TERM enif_make_atom(ErlNifEnv* env, const char* name) ERL_NIF_TERM enif_make_atom_len(ErlNifEnv* env, const char* name, size_t len) { + if (len > MAX_ATOM_CHARACTERS) + return enif_make_badarg(env); return erts_atom_put((byte*)name, len, ERTS_ATOM_ENC_LATIN1, 1); } @@ -991,6 +998,8 @@ int enif_make_existing_atom_len(ErlNifEnv* env, const char* name, size_t len, ERL_NIF_TERM* atom, ErlNifCharEncoding encoding) { ASSERT(encoding == ERL_NIF_LATIN1); + if (len > MAX_ATOM_CHARACTERS) + return 0; return erts_atom_get(name, len, atom, ERTS_ATOM_ENC_LATIN1); } @@ -1754,14 +1763,13 @@ execute_dirty_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]) ASSERT(ep); if (ep->fp) fp = NULL; - if (is_non_value(result)) { + if (is_non_value(result) || env->exception_thrown) { if (proc->freason != TRAP) { - ASSERT(proc->freason == BADARG); return init_nif_sched_data(env, dirty_nif_exception, fp, 0, argc, argv); } else { if (ep->fp == NULL) restore_nif_mfa(proc, ep, 1); - return result; + return THE_NON_VALUE; } } else diff --git a/erts/emulator/beam/global.h b/erts/emulator/beam/global.h index 32a2dc43e8..d58aecab9b 100644 --- a/erts/emulator/beam/global.h +++ b/erts/emulator/beam/global.h @@ -51,6 +51,7 @@ struct enif_environment_t /* ErlNifEnv */ ErlHeapFragment* heap_frag; int fpe_was_unmasked; struct enif_tmp_obj_t* tmp_obj_list; + int exception_thrown; /* boolean */ }; extern void erts_pre_nif(struct enif_environment_t*, Process*, struct erl_module_nif*); |