aboutsummaryrefslogtreecommitdiffstats
path: root/erts
diff options
context:
space:
mode:
Diffstat (limited to 'erts')
-rw-r--r--erts/doc/src/erl_ext_dist.xml29
-rw-r--r--erts/doc/src/escript.xml23
-rw-r--r--erts/doc/src/time_correction.xml4
-rw-r--r--erts/emulator/Makefile.in20
-rw-r--r--erts/emulator/beam/beam_bp.c5
-rw-r--r--erts/emulator/beam/dist.h6
-rw-r--r--erts/emulator/beam/erl_db_tree.c4
-rw-r--r--erts/emulator/beam/erl_trace.c19
-rw-r--r--erts/emulator/beam/erl_trace.h1
-rw-r--r--erts/emulator/beam/external.c55
-rw-r--r--erts/emulator/beam/ops.tab3
-rw-r--r--erts/emulator/hipe/hipe_x86_signal.c6
-rw-r--r--erts/emulator/test/map_SUITE.erl19
-rw-r--r--erts/emulator/test/nif_SUITE_data/nif_mod.c3
-rw-r--r--erts/emulator/test/trace_call_time_SUITE.erl96
15 files changed, 220 insertions, 73 deletions
diff --git a/erts/doc/src/erl_ext_dist.xml b/erts/doc/src/erl_ext_dist.xml
index f91ed78122..fa083db4c7 100644
--- a/erts/doc/src/erl_ext_dist.xml
+++ b/erts/doc/src/erl_ext_dist.xml
@@ -5,7 +5,7 @@
<header>
<copyright>
<year>2007</year>
- <year>2013</year>
+ <year>2014</year>
<holder>Ericsson AB, All Rights Reserved</holder>
</copyright>
<legalnotice>
@@ -573,6 +573,33 @@
</section>
<section>
+ <marker id="MAP_EXT"/>
+ <title>MAP_EXT</title>
+
+ <table align="left">
+ <row>
+ <cell align="center">1</cell>
+ <cell align="center">4</cell>
+ <cell align="center">N</cell>
+ </row>
+ <row>
+ <cell align="center">116</cell>
+ <cell align="center">Arity</cell>
+ <cell align="center">Pairs</cell>
+ </row>
+ <tcaption></tcaption></table>
+ <p>
+ <c>MAP_EXT</c> encodes a map. The <c>Arity</c> field is an unsigned
+ 4 byte integer in big endian format that determines the number of
+ key-value pairs in the map. Key and value pairs (<c>Ki => Vi</c>)
+ are encoded in the <c>Pairs</c> section in the following order:
+ <c>K1, V1, K2, V2,..., Kn, Vn</c>.
+ Duplicate keys are <em>not allowed</em> within the same map.
+ </p>
+ <p><em>Since: </em>OTP 17.0</p>
+ </section>
+
+ <section>
<marker id="NIL_EXT"/>
<title>NIL_EXT</title>
diff --git a/erts/doc/src/escript.xml b/erts/doc/src/escript.xml
index d2b09d4515..1abbdb2180 100644
--- a/erts/doc/src/escript.xml
+++ b/erts/doc/src/escript.xml
@@ -4,7 +4,7 @@
<comref>
<header>
<copyright>
- <year>2007</year><year>2013</year>
+ <year>2007</year><year>2014</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
@@ -92,6 +92,18 @@ $ <input>escript factorial 5</input> </pre>
marker="stdlib:epp#encoding">encoding</seealso> it can be
located on the second line.</p>
+ <note><p>
+ The encoding specified by the above mentioned comment
+ applies to the script itself. The encoding of the
+ I/O-server, however, has to be set explicitly like this:
+<code>io:setopts([{encoding, unicode}])</code></p>
+ <p>The default encoding of the I/O-server for <c>standard_io</c>
+ is <c>latin1</c>
+ since the script runs in a non-interactive terminal
+ (see <seealso marker="stdlib:unicode_usage#unicode_options_summary">
+ Using Unicode in Erlang</seealso>).
+ </p></note>
+
<p>On the third line (or second line depending on the presence
of the Emacs directive), it is possible to give arguments to
the emulator, such as </p>
@@ -141,8 +153,9 @@ halt(1).</pre>
-include_lib("kernel/include/file.hrl").</pre>
<p>to include the record definitions for the records used by the
<c>file:read_link_info/1</c> function. You can also select
- encoding here, but if there is a valid encoding comment on
- the second line it takes precedence.</p>
+ encoding by including a encoding comment here, but if there
+ is a valid encoding comment on the second line it takes
+ precedence.</p>
<p>The script will be checked for syntactic and semantic
correctness before being run. If there are warnings (such as
@@ -163,7 +176,7 @@ halt(1).</pre>
If much of the execution takes place in interpreted code it
may be worthwhile to compile it, even though the compilation
itself will take a little while. It is also possible to supply
- <c>native</c> instead of compile, this will compile the script
+ <c>native</c> instead of <c>compile</c>, this will compile the script
using the native flag, again depending on the characteristics
of the escript this could or could not be worth while.</p>
@@ -239,7 +252,7 @@ factorial 5 = 120
can either be returned as a binary or written to file.</p>
<p>As an example of how the function can be used, we create an
- interpreted escript which uses emu_args to set some emulator
+ interpreted escript which uses <c>emu_args</c> to set some emulator
flag. In this case it happens to disable the smp_support. We
do also extract the different sections from the newly created
script:</p>
diff --git a/erts/doc/src/time_correction.xml b/erts/doc/src/time_correction.xml
index d52cc7f3e2..7f7c28fc30 100644
--- a/erts/doc/src/time_correction.xml
+++ b/erts/doc/src/time_correction.xml
@@ -1,10 +1,10 @@
-<?xml version="1.0" encoding="utf8" ?>
+<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">
<chapter>
<header>
<copyright>
- <year>1999</year><year>2013</year>
+ <year>1999</year><year>2014</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 523130d01a..2a9a0a5c2f 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -414,13 +414,6 @@ else
UNIX_ONLY_BUILDS =
endif
-ifeq ($(TARGET), win32)
-TMPVAR := $(shell LANG=C $(PERL) utils/make_compiler_flags -o $(TTF_DIR)/erl_compile_flags.h -v CONFIG_H "N/A" -v CFLAGS "$(CFLAGS)" -v LDFLAGS "$(LDFLAGS)")
-else
-# We force this to be run every time this makefile is executed
-TMPVAR := $(shell LANG=C $(PERL) utils/make_compiler_flags -o $(TTF_DIR)/erl_compile_flags.h -f CONFIG_H "$(ERL_TOP)/erts/$(TARGET)/config.h" -v CFLAGS "$(CFLAGS)" -v LDFLAGS "$(LDFLAGS)")
-endif
-
.PHONY: all
ifdef VOID_EMULATOR
all:
@@ -499,6 +492,15 @@ release_docs_spec:
_create_dirs := $(shell mkdir -p $(CREATE_DIRS))
+
+# has to be run after _create_dirs
+ifeq ($(TARGET), win32)
+TMPVAR := $(shell LANG=C $(PERL) utils/make_compiler_flags -o $(TTF_DIR)/erl_compile_flags.h -v CONFIG_H "N/A" -v CFLAGS "$(CFLAGS)" -v LDFLAGS "$(LDFLAGS)")
+else
+# We force this to be run every time this makefile is executed
+TMPVAR := $(shell LANG=C $(PERL) utils/make_compiler_flags -o $(TTF_DIR)/erl_compile_flags.h -f CONFIG_H "$(ERL_TOP)/erts/$(TARGET)/config.h" -v CFLAGS "$(CFLAGS)" -v LDFLAGS "$(LDFLAGS)")
+endif
+
GENERATE =
HIPE_ASM =
@@ -1087,7 +1089,9 @@ BEAM_SRC=$(wildcard beam/*.c)
DRV_COMMON_SRC=$(wildcard drivers/common/*.c)
DRV_OSTYPE_SRC=$(wildcard drivers/$(ERLANG_OSTYPE)/*.c)
ALL_SYS_SRC=$(wildcard sys/$(ERLANG_OSTYPE)/*.c) $(wildcard sys/common/*.c)
-TARGET_SRC=$(wildcard $(TARGET)/*.c) $(wildcard $(TTF_DIR)/*.c)
+# We use $(shell ls) here instead of wildcard as $(wildcard ) resolved at
+# loadtime of the makefile and at that time these files are not generated yet.
+TARGET_SRC=$(shell ls $(TARGET)/*.c) $(shell ls $(TTF_DIR)/*.c)
# I do not want the -MG flag on windows, it does not work properly for a
# windows build.
diff --git a/erts/emulator/beam/beam_bp.c b/erts/emulator/beam/beam_bp.c
index 49a34ab4ad..4e711c89e0 100644
--- a/erts/emulator/beam/beam_bp.c
+++ b/erts/emulator/beam/beam_bp.c
@@ -642,7 +642,7 @@ erts_generic_breakpoint(Process* c_p, BeamInstr* I, Eterm* reg)
erts_smp_atomic_inc_nob(&bp->count->acount);
}
- if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE) {
+ if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE && erts_is_tracer_proc_valid(c_p)) {
Eterm w;
erts_trace_time_call(c_p, I, bp->time);
w = (BeamInstr) *c_p->cp;
@@ -730,7 +730,8 @@ erts_bif_trace(int bif_index, Process* p, Eterm* args, BeamInstr* I)
}
}
if (bp_flags & ERTS_BPF_TIME_TRACE_ACTIVE &&
- IS_TRACED_FL(p, F_TRACE_CALLS)) {
+ IS_TRACED_FL(p, F_TRACE_CALLS) &&
+ erts_is_tracer_proc_valid(p)) {
BeamInstr *pc = (BeamInstr *)ep->code+3;
erts_trace_time_call(p, pc, bp->time);
}
diff --git a/erts/emulator/beam/dist.h b/erts/emulator/beam/dist.h
index 0519a9225e..f32b999198 100644
--- a/erts/emulator/beam/dist.h
+++ b/erts/emulator/beam/dist.h
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2014. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -40,6 +40,7 @@
#define DFLAG_SMALL_ATOM_TAGS 0x4000
#define DFLAG_INTERNAL_TAGS 0x8000
#define DFLAG_UTF8_ATOMS 0x10000
+#define DFLAG_MAP_TAG 0x20000
/* All flags that should be enabled when term_to_binary/1 is used. */
#define TERM_TO_BINARY_DFLAGS (DFLAG_EXTENDED_REFERENCES \
@@ -47,7 +48,8 @@
| DFLAG_NEW_FLOATS \
| DFLAG_EXTENDED_PIDS_PORTS \
| DFLAG_EXPORT_PTR_TAG \
- | DFLAG_BIT_BINARIES)
+ | DFLAG_BIT_BINARIES \
+ | DFLAG_MAP_TAG)
/* opcodes used in distribution messages */
#define DOP_LINK 1
diff --git a/erts/emulator/beam/erl_db_tree.c b/erts/emulator/beam/erl_db_tree.c
index 25029ba90f..a62a83a928 100644
--- a/erts/emulator/beam/erl_db_tree.c
+++ b/erts/emulator/beam/erl_db_tree.c
@@ -485,7 +485,7 @@ static int db_first_tree(Process *p, DbTable *tbl, Eterm *ret)
*ret = am_EOT;
return DB_ERROR_NONE;
}
- /* Walk down to the tree to the left */
+ /* Walk down the tree to the left */
if ((stack = get_static_stack(tb)) != NULL) {
stack->pos = stack->slot = 0;
}
@@ -531,7 +531,7 @@ static int db_last_tree(Process *p, DbTable *tbl, Eterm *ret)
*ret = am_EOT;
return DB_ERROR_NONE;
}
- /* Walk down to the tree to the left */
+ /* Walk down the tree to the right */
if ((stack = get_static_stack(tb)) != NULL) {
stack->pos = stack->slot = 0;
}
diff --git a/erts/emulator/beam/erl_trace.c b/erts/emulator/beam/erl_trace.c
index 6978a5f11a..305058ceff 100644
--- a/erts/emulator/beam/erl_trace.c
+++ b/erts/emulator/beam/erl_trace.c
@@ -151,6 +151,11 @@ do { \
message dispatcher thread takes care of that). */
#define ERTS_GET_TRACER_REF(RES, TPID, TRACEE_FLGS) \
do { (RES) = (TPID); } while(0)
+int
+erts_is_tracer_proc_valid(Process* p)
+{
+ return 1;
+}
#else
#define ERTS_NULL_TRACER_REF NULL
#define ERTS_TRACER_REF_TYPE Process *
@@ -163,6 +168,20 @@ do { \
return; \
} \
} while (0)
+int
+erts_is_tracer_proc_valid(Process* p)
+{
+ Process* tracer;
+
+ tracer = erts_proc_lookup(ERTS_TRACER_PROC(p));
+ if (tracer && ERTS_TRACE_FLAGS(tracer) & F_TRACER) {
+ return 1;
+ } else {
+ ERTS_TRACER_PROC(p) = NIL;
+ ERTS_TRACE_FLAGS(p) = ~TRACEE_FLAGS;
+ return 0;
+ }
+}
#endif
static Uint active_sched;
diff --git a/erts/emulator/beam/erl_trace.h b/erts/emulator/beam/erl_trace.h
index 853c6cb0d8..4f2c70d6e7 100644
--- a/erts/emulator/beam/erl_trace.h
+++ b/erts/emulator/beam/erl_trace.h
@@ -39,6 +39,7 @@ void erts_change_default_tracing(int setflags, Uint *flagsp, Eterm *tracerp);
void erts_get_default_tracing(Uint *flagsp, Eterm *tracerp);
void erts_set_system_monitor(Eterm monitor);
Eterm erts_get_system_monitor(void);
+int erts_is_tracer_proc_valid(Process* p);
#ifdef ERTS_SMP
void erts_check_my_tracer_proc(Process *);
diff --git a/erts/emulator/beam/external.c b/erts/emulator/beam/external.c
index 9671cde228..656de7c49a 100644
--- a/erts/emulator/beam/external.c
+++ b/erts/emulator/beam/external.c
@@ -2562,29 +2562,25 @@ enc_term_int(TTBEncodeContext* ctx, ErtsAtomCacheMap *acmp, Eterm obj, byte* ep,
{
map_t *mp = (map_t*)map_val(obj);
Uint size = map_get_size(mp);
- Eterm *mptr;
*ep++ = MAP_EXT;
put_int32(size, ep); ep += 4;
- /* Push values first */
if (size > 0) {
- mptr = map_get_values(mp);
+ Eterm *kptr = map_get_keys(mp);
+ Eterm *vptr = map_get_values(mp);
+
for (i = size-1; i >= 1; i--) {
WSTACK_PUSH(s, ENC_TERM);
- WSTACK_PUSH(s, (UWord) mptr[i]);
+ WSTACK_PUSH(s, (UWord) vptr[i]);
+ WSTACK_PUSH(s, ENC_TERM);
+ WSTACK_PUSH(s, (UWord) kptr[i]);
}
WSTACK_PUSH(s, ENC_TERM);
- WSTACK_PUSH(s, (UWord) mptr[0]);
-
- mptr = map_get_keys(mp);
- for (i = size-1; i >= 1; i--) {
- WSTACK_PUSH(s, ENC_TERM);
- WSTACK_PUSH(s, (UWord) mptr[i]);
- }
+ WSTACK_PUSH(s, (UWord) vptr[0]);
- obj = mptr[0];
+ obj = kptr[0];
goto L_jump_start;
}
}
@@ -3518,16 +3514,16 @@ dec_term_atom_common:
keys = make_tuple(hp);
*hp++ = make_arityval(size);
- kptr = hp;
hp += size;
+ kptr = hp - 1;
mp = (map_t*)hp;
hp += MAP_HEADER_SIZE;
- vptr = hp;
hp += size;
+ vptr = hp - 1;
- /* kptr, first word for keys
- * vptr, first word for values
+ /* kptr, last word for keys
+ * vptr, last word for values
*/
/*
@@ -3542,27 +3538,12 @@ dec_term_atom_common:
mp->keys = keys;
*objp = make_map(mp);
- /* We assume the map is wellformed, meaning:
- * - ascending key order
- * - unique keys
- */
-
- objp = vptr + size - 1;
- n = size;
-
- while (n-- > 0) {
- *objp = (Eterm) COMPRESS_POINTER(next);
- next = objp;
- objp--;
- }
-
- objp = kptr + size - 1;
- n = size;
-
- while (n-- > 0) {
- *objp = (Eterm) COMPRESS_POINTER(next);
- next = objp;
- objp--;
+ for (n = size; n; n--) {
+ *vptr = (Eterm) COMPRESS_POINTER(next);
+ *kptr = (Eterm) COMPRESS_POINTER(vptr);
+ next = kptr;
+ vptr--;
+ kptr--;
}
}
break;
diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 73630fda8e..68fcc177ae 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -1484,7 +1484,8 @@ new_map j d I I
update_map_assoc j s d I I
update_map_exact j s d I I
-is_map Fail cq => jump Fail
+is_map Fail Literal=q => move Literal x | is_map Fail x
+is_map Fail c => jump Fail
%macro: is_map IsMap -fail_action
is_map f r
diff --git a/erts/emulator/hipe/hipe_x86_signal.c b/erts/emulator/hipe/hipe_x86_signal.c
index 8f997aafab..f5668013e2 100644
--- a/erts/emulator/hipe/hipe_x86_signal.c
+++ b/erts/emulator/hipe/hipe_x86_signal.c
@@ -2,7 +2,7 @@
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2001-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2014. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -304,7 +304,9 @@ static void hipe_sigaltstack(void *ss_sp)
*/
void hipe_thread_signal_init(void)
{
- hipe_sigaltstack(erts_alloc(ERTS_ALC_T_HIPE, SIGSTKSZ));
+ /* Stack don't really need to be cache aligned.
+ We use it to suppress false leak report from valgrind */
+ hipe_sigaltstack(erts_alloc_permanent_cache_aligned(ERTS_ALC_T_HIPE, SIGSTKSZ));
}
#endif
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl
index 753d6f7727..888ed8e272 100644
--- a/erts/emulator/test/map_SUITE.erl
+++ b/erts/emulator/test/map_SUITE.erl
@@ -813,16 +813,16 @@ t_map_encode_decode(Config) when is_list(Config) ->
%% literally #{ b=>2, a=>1 } in the internal order
#{ a:=1, b:=2 } =
- erlang:binary_to_term(<<131,116,0,0,0,2,100,0,1,98,100,0,1,97,97,2,97,1>>),
+ erlang:binary_to_term(<<131,116,0,0,0,2,100,0,1,98,97,2,100,0,1,97,97,1>>),
%% literally #{ "hi" => "value", a=>33, b=>55 } in the internal order
#{ a:=33, b:=55, "hi" := "value"} = erlang:binary_to_term(<<131,116,0,0,0,3,
107,0,2,104,105, % "hi" :: list()
- 100,0,1,97, % a :: atom()
- 100,0,1,98, % b :: atom()
107,0,5,118,97,108,117,101, % "value" :: list()
+ 100,0,1,97, % a :: atom()
97,33, % 33 :: integer()
+ 100,0,1,98, % b :: atom()
97,55 % 55 :: integer()
>>),
@@ -834,11 +834,17 @@ t_map_encode_decode(Config) when is_list(Config) ->
%% uniqueness violation
%% literally #{ a=>1, "hi"=>"value", a=>2 }
{'EXIT',{badarg,[{_,_,_,_}|_]}} = (catch
- erlang:binary_to_term(<<131,116,0,0,0,3,100,0,1,97,107,0,2,104,105,100,0,1,97,97,1,107,0,5,118,97,108,117,101,97,2>>)),
+ erlang:binary_to_term(<<131,116,0,0,0,3,
+ 100,0,1,97,
+ 97,1,
+ 107,0,2,104,105,
+ 107,0,5,118,97,108,117,101,
+ 100,0,1,97,
+ 97,2>>)),
%% bad size (too large)
{'EXIT',{badarg,[{_,_,_,_}|_]}} = (catch
- erlang:binary_to_term(<<131,116,0,0,0,12,100,0,1,97,100,0,1,98,97,1,97,1>>)),
+ erlang:binary_to_term(<<131,116,0,0,0,12,100,0,1,97,97,1,100,0,1,98,97,1>>)),
%% bad size (too small) .. should fail just truncate it .. weird.
%% possibly change external format so truncated will be #{a:=1}
@@ -852,7 +858,8 @@ map_encode_decode_and_match([{K,V}|Pairs], EncodedPairs, M0) ->
B0 = erlang:term_to_binary(M1),
Ls = lists:sort(fun(A,B) -> erts_internal:cmp_term(A,B) < 0 end, [{K, erlang:term_to_binary(K), erlang:term_to_binary(V)}|EncodedPairs]),
%% sort Ks and Vs according to term spec, then match it
- ok = match_encoded_map(B0, length(Ls), [Kbin||{_,Kbin,_}<-Ls] ++ [Vbin||{_,_,Vbin}<-Ls]),
+ KVbins = lists:foldr(fun({_,Kbin,Vbin}, Acc) -> [Kbin,Vbin | Acc] end, [], Ls),
+ ok = match_encoded_map(B0, length(Ls), KVbins),
%% decode and match it
M1 = erlang:binary_to_term(B0),
map_encode_decode_and_match(Pairs,Ls,M1);
diff --git a/erts/emulator/test/nif_SUITE_data/nif_mod.c b/erts/emulator/test/nif_SUITE_data/nif_mod.c
index 55a0d2ac4f..11b5d0cc35 100644
--- a/erts/emulator/test/nif_SUITE_data/nif_mod.c
+++ b/erts/emulator/test/nif_SUITE_data/nif_mod.c
@@ -217,7 +217,8 @@ static int upgrade(ErlNifEnv* env, void** priv, void** old_priv_data, ERL_NIF_TE
*priv = *old_priv_data;
do_load_info(env, load_info, &retval);
-
+ if (retval)
+ NifModPrivData_release(data);
return retval;
}
diff --git a/erts/emulator/test/trace_call_time_SUITE.erl b/erts/emulator/test/trace_call_time_SUITE.erl
index 5dfa87bbee..3036d2957b 100644
--- a/erts/emulator/test/trace_call_time_SUITE.erl
+++ b/erts/emulator/test/trace_call_time_SUITE.erl
@@ -33,7 +33,7 @@
%% Exported end user tests
-export([seq/3, seq_r/3]).
--export([loaded/1, a_function/1, a_called_function/1, dec/1, nif_dec/1]).
+-export([loaded/1, a_function/1, a_called_function/1, dec/1, nif_dec/1, dead_tracer/1]).
-define(US_ERROR, 10000).
-define(R_ERROR, 0.8).
@@ -89,7 +89,7 @@ all() ->
true -> [not_run];
false ->
[basic, on_and_off, info, pause_and_restart, scheduling,
- combo, bif, nif, called_function]
+ combo, bif, nif, called_function, dead_tracer]
end.
groups() ->
@@ -470,6 +470,92 @@ called_function(Config) when is_list(Config) ->
?line P = erlang:trace_pattern({'_','_','_'}, false, [call_time]),
ok.
+%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+dead_tracer(Config) when is_list(Config) ->
+ Self = self(),
+ FirstTracer = tracer(),
+ StartTracing = fun() -> turn_on_tracing(Self) end,
+ tell_tracer(FirstTracer, StartTracing),
+ [1,2,3,4,5,6,7,8] = seq(1, 8, fun(I) -> I + 1 end),
+ Ref = erlang:monitor(process, FirstTracer),
+ FirstTracer ! quit,
+ receive
+ {'DOWN',Ref,process,FirstTracer,normal} ->
+ ok
+ end,
+ erlang:yield(),
+
+ %% Collect and check that we only get call_time info for the current process.
+ Info1 = collect_all_info(),
+ [] = other_than_self(Info1),
+ io:format("~p\n", [Info1]),
+
+ %% Note that we have not turned off tracing for the current process,
+ %% but that the tracer has terminated. No more call_time information should be recorded.
+ [1,2,3] = seq(1, 3, fun(I) -> I + 1 end),
+ [] = collect_all_info(),
+
+ %% When we start a second tracer process, that tracer process must
+ %% not inherit the tracing flags and the dead tracer (even though
+ %% we used set_on_spawn).
+ SecondTracer = tracer(),
+ tell_tracer(SecondTracer, StartTracing),
+ Seq20 = lists:seq(1, 20),
+ Seq20 = seq(1, 20, fun(I) -> I + 1 end),
+ Info2 = collect_all_info(),
+ io:format("~p\n", [Info2]),
+ [] = other_than_self(Info2),
+ SecondTracer ! quit,
+
+ ok.
+
+other_than_self(Info) ->
+ [{Pid,MFA} || {MFA,[{Pid,_,_,_}]} <- Info,
+ Pid =/= self()].
+
+tell_tracer(Tracer, Fun) ->
+ Tracer ! {execute,self(),Fun},
+ receive
+ {Tracer,executed} ->
+ ok
+ end.
+
+tracer() ->
+ spawn_link(fun Loop() ->
+ receive
+ quit ->
+ ok;
+ {execute,From,Fun} ->
+ Fun(),
+ From ! {self(),executed},
+ Loop()
+ end
+ end).
+
+turn_on_tracing(Pid) ->
+ _ = erlang:trace(Pid, true, [call,set_on_spawn]),
+ _ = erlang:trace_pattern({?MODULE,'_','_'}, true, [call_time]),
+ _ = now(),
+ ok.
+
+collect_all_info() ->
+ collect_all_info([{?MODULE,F,A} || {F,A} <- module_info(functions)] ++
+ erlang:system_info(snifs)).
+
+collect_all_info([MFA|T]) ->
+ CallTime = erlang:trace_info(MFA, call_time),
+ erlang:trace_pattern(MFA, restart, [call_time]),
+ case CallTime of
+ {call_time,false} ->
+ collect_all_info(T);
+ {call_time,[]} ->
+ collect_all_info(T);
+ {call_time,[_|_]=List} ->
+ [{MFA,List}|collect_all_info(T)]
+ end;
+collect_all_info([]) -> [].
+
%%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%% The Tests
%%%
@@ -478,7 +564,6 @@ called_function(Config) when is_list(Config) ->
%% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Local helpers
-
load_nif(Config) ->
?line Path = ?config(data_dir, Config),
?line ok = erlang:load_nif(filename:join(Path,"trace_nif"), 0).
@@ -602,8 +687,11 @@ collect(A, Ref) ->
end.
setup() ->
+ setup([]).
+
+setup(Opts) ->
Pid = spawn_link(fun() -> loop() end),
- ?line 1 = erlang:trace(Pid, true, [call]),
+ 1 = erlang:trace(Pid, true, [call|Opts]),
Pid.
execute(Pids, Mfa) when is_list(Pids) ->
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 02:34:58 +0000