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-rw-r--r--erts/emulator/beam/erl_bif_info.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index 70d0e91a2c..48cda52612 100644
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -1892,6 +1892,37 @@ c_compiler_used(Eterm **hpp, Uint *szp)
}
+static int is_snif_term(Eterm module_atom) {
+ int i;
+ Atom *a = atom_tab(atom_val(module_atom));
+ char *aname = (char *) a->name;
+
+ /* if a->name has a '.' then the bif (snif) is bogus i.e a package */
+ for (i = 0; i < a->len; i++) {
+ if (aname[i] == '.')
+ return 0;
+ }
+
+ return 1;
+}
+
+static Eterm build_snif_term(Eterm **hpp, Uint *szp, int ix, Eterm res) {
+ Eterm tup;
+ tup = erts_bld_tuple(hpp, szp, 3, bif_table[ix].module, bif_table[ix].name, make_small(bif_table[ix].arity));
+ res = erts_bld_cons( hpp, szp, tup, res);
+ return res;
+}
+
+static Eterm build_snifs_term(Eterm **hpp, Uint *szp, Eterm res) {
+ int i;
+ for (i = 0; i < BIF_SIZE; i++) {
+ if (is_snif_term(bif_table[i].module)) {
+ res = build_snif_term(hpp, szp, i, res);
+ }
+ }
+ return res;
+}
+
BIF_RETTYPE system_info_1(BIF_ALIST_1)
{
Eterm res;
@@ -1940,6 +1971,15 @@ BIF_RETTYPE system_info_1(BIF_ALIST_1)
BIF_RET(db_get_trace_control_word_0(BIF_P));
} else if (ERTS_IS_ATOM_STR("ets_realloc_moves", BIF_ARG_1)) {
BIF_RET((erts_ets_realloc_always_moves) ? am_true : am_false);
+ } else if (ERTS_IS_ATOM_STR("snifs", BIF_ARG_1)) {
+ Uint size = 0;
+ Uint *szp;
+
+ szp = &size;
+ build_snifs_term(NULL, szp, NIL);
+ hp = HAlloc(BIF_P, size);
+ res = build_snifs_term(&hp, NULL, NIL);
+ BIF_RET(res);
} else if (BIF_ARG_1 == am_sequential_tracer) {
val = erts_get_system_seq_tracer();
ASSERT(is_internal_pid(val) || is_internal_port(val) || val==am_false)