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author | Björn-Egil Dahlberg <[email protected]> | 2012-02-07 19:19:27 +0100 |
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committer | Patrik Nyblom <[email protected]> | 2012-03-22 18:16:13 +0100 |
commit | 0fd4e39abeea3fc87b78eec8495109f9245b5ac8 (patch) | |
tree | e4e8de912a44e58d0f5e1d108ce3e8d9ed822558 /lib/dtrace | |
parent | ad6387b0242caa2b3c64d62a133752e10546211b (diff) | |
download | otp-0fd4e39abeea3fc87b78eec8495109f9245b5ac8.tar.gz otp-0fd4e39abeea3fc87b78eec8495109f9245b5ac8.tar.bz2 otp-0fd4e39abeea3fc87b78eec8495109f9245b5ac8.zip |
Update dtrace for changes in R15
Diffstat (limited to 'lib/dtrace')
-rw-r--r-- | lib/dtrace/c_src/Makefile | 2 | ||||
-rw-r--r-- | lib/dtrace/c_src/Makefile.in | 15 | ||||
-rw-r--r-- | lib/dtrace/c_src/dtrace.c | 16 | ||||
-rw-r--r-- | lib/dtrace/examples/dist.d | 14 | ||||
-rw-r--r-- | lib/dtrace/examples/port1.d | 8 | ||||
-rw-r--r-- | lib/dtrace/examples/process-scheduling.d | 2 | ||||
-rw-r--r-- | lib/dtrace/src/dtrace.erl | 38 |
7 files changed, 59 insertions, 36 deletions
diff --git a/lib/dtrace/c_src/Makefile b/lib/dtrace/c_src/Makefile index f3320bb766..a65491d45d 100644 --- a/lib/dtrace/c_src/Makefile +++ b/lib/dtrace/c_src/Makefile @@ -1,4 +1,4 @@ # -# Invoke with GNU make or clearmake -C gnu. +# Invoke with GNU make # include $(ERL_TOP)/make/run_make.mk diff --git a/lib/dtrace/c_src/Makefile.in b/lib/dtrace/c_src/Makefile.in index ed13684a95..831ce5ce75 100644 --- a/lib/dtrace/c_src/Makefile.in +++ b/lib/dtrace/c_src/Makefile.in @@ -72,7 +72,7 @@ RELSYSDIR = $(RELEASE_PATH)/lib/dtrace-$(VSN) # ---------------------------------------------------- # Misc Macros # ---------------------------------------------------- -OBJS = $(OBJDIR)/dtrace$(TYPEMARKER).o +before_DTrace_OBJS = $(OBJDIR)/dtrace$(TYPEMARKER).o ## NIF_MAKEFILE = $(PRIVDIR)/Makefile # Higher-level makefiles says that we can only compile on UNIX flavors @@ -100,18 +100,17 @@ else DTRACE_USER_HEADER= endif +DTRACE_OBJS = ifdef DTRACE_ENABLED_2STEP -OBJS += $(OBJDIR)/dtrace_user.o -$(OBJDIR)/dtrace_user.o: $(OBJS) $(OBJDIR)/dtrace_user.h - touch $(OBJDIR)/erlang_dtrace.c - $(CC) $(CFLAGS) -c -o $@ $(OBJDIR)/erlang_dtrace.c - # The object file created above is immediately clobbered below. - # But creating it above avoids chicken-and-egg problem with OBJS +DTRACE_OBJS += $(OBJDIR)/dtrace_user.o +$(OBJDIR)/dtrace_user.o: $(before_DTrace_OBJS) $(OBJDIR)/dtrace_user.h dtrace -G -C \ -s ./dtrace_user.d \ - -o $@ $(OBJS) + -o $@ $(before_DTrace_OBJS) endif +OBJS = $(before_DTrace_OBJS) $(DTRACE_OBJS) + $(OBJDIR): -@mkdir -p $(OBJDIR) diff --git a/lib/dtrace/c_src/dtrace.c b/lib/dtrace/c_src/dtrace.c index c9d25ece9c..90bb39a4b8 100644 --- a/lib/dtrace/c_src/dtrace.c +++ b/lib/dtrace/c_src/dtrace.c @@ -25,7 +25,6 @@ #include "erl_nif.h" #include "config.h" #include "sys.h" -#define DTRACE_DRIVER_SKIP_FUNC_DECLARATIONS #include "dtrace-wrapper.h" #ifdef HAVE_DTRACE #include "dtrace_user.h" @@ -144,8 +143,7 @@ static ERL_NIF_TERM user_trace_i4s4(ErlNifEnv* env, int argc, const ERL_NIF_TERM if (DTRACE_ENABLED(user_trace_i4s4)) { dtrace_nifenv_str(env, procbuf); - get_string_maybe(env, argv[0], &utbuf, - user_tagbuf, sizeof(user_tagbuf)-1); + get_string_maybe(env, argv[0], &utbuf, user_tagbuf, MESSAGE_BUFSIZ); if (! enif_get_int64(env, argv[1], &i1)) i1 = 0; if (! enif_get_int64(env, argv[2], &i2)) @@ -154,14 +152,10 @@ static ERL_NIF_TERM user_trace_i4s4(ErlNifEnv* env, int argc, const ERL_NIF_TERM i3 = 0; if (! enif_get_int64(env, argv[4], &i4)) i4 = 0; - get_string_maybe(env, argv[5], &mbuf1, - messagebuf1, sizeof(messagebuf1)-1); - get_string_maybe(env, argv[6], &mbuf2, - messagebuf2, sizeof(messagebuf2)-1); - get_string_maybe(env, argv[7], &mbuf3, - messagebuf3, sizeof(messagebuf3)-1); - get_string_maybe(env, argv[8], &mbuf4, - messagebuf4, sizeof(messagebuf4)-1); + get_string_maybe(env, argv[5], &mbuf1, messagebuf1, MESSAGE_BUFSIZ); + get_string_maybe(env, argv[6], &mbuf2, messagebuf2, MESSAGE_BUFSIZ); + get_string_maybe(env, argv[7], &mbuf3, messagebuf3, MESSAGE_BUFSIZ); + get_string_maybe(env, argv[8], &mbuf4, messagebuf4, MESSAGE_BUFSIZ); DTRACE10(user_trace_i4s4, procbuf, utbuf, i1, i2, i3, i4, mbuf1, mbuf2, mbuf3, mbuf4); return atom_true; diff --git a/lib/dtrace/examples/dist.d b/lib/dtrace/examples/dist.d index f37c827f14..550e10d363 100644 --- a/lib/dtrace/examples/dist.d +++ b/lib/dtrace/examples/dist.d @@ -30,13 +30,13 @@ erlang*:::dist-port_busy { printf("dist port_busy: node %s, port %s, remote_node %s, blocked pid %s\n", copyinstr(arg0), copyinstr(arg1), copyinstr(arg2), copyinstr(arg3)); - blocked_procs[copyinstr(arg3)] = timestamp; -} - -erlang*:::dist-port_busy -{ - printf("dist port_busy: node %s, port %s, remote_node %s, blocked pid %s\n", - copyinstr(arg0), copyinstr(arg1), copyinstr(arg2), copyinstr(arg3)); + /* + * For variable use advice, see: + * http://dtrace.org/blogs/brendan/2011/11/25/dtrace-variable-types/ + * + * Howevever, it's quite possible for the blocked events to span + * threads, so we'll use globals. + */ blocked_procs[copyinstr(arg3)] = timestamp; } diff --git a/lib/dtrace/examples/port1.d b/lib/dtrace/examples/port1.d index b82e783a14..204abbd3b8 100644 --- a/lib/dtrace/examples/port1.d +++ b/lib/dtrace/examples/port1.d @@ -99,10 +99,12 @@ erlang*:::port-command erlang*:::port-control { - cmd = driver_map[copyinstr(arg2), arg3]; - cmd_str = (cmd == 0) ? "unknown" : cmd; + /* http://dtrace.org/blogs/brendan/2011/11/25/dtrace-variable-types/ */ + this->cmd = driver_map[copyinstr(arg2), arg3]; + this->cmd_str = (this->cmd == 0) ? "unknown" : this->cmd; printf("port control pid %s port %s port name %s command %d %s\n", - copyinstr(arg0), copyinstr(arg1), copyinstr(arg2), arg3, cmd_str); + copyinstr(arg0), copyinstr(arg1), copyinstr(arg2), arg3, + this->cmd_str); } /* port-exit is fired as a result of port_close() or exit signal */ diff --git a/lib/dtrace/examples/process-scheduling.d b/lib/dtrace/examples/process-scheduling.d index 9e31da2774..79e9cc598c 100644 --- a/lib/dtrace/examples/process-scheduling.d +++ b/lib/dtrace/examples/process-scheduling.d @@ -31,5 +31,5 @@ erlang*:::process-unscheduled erlang*:::process-hibernate { printf(" Hibernate pid %s resume mfa %s\n", - copyinstr(arg0), copyinstr(arg1)); + copyinstr(arg0), copyinstr(arg1)); } diff --git a/lib/dtrace/src/dtrace.erl b/lib/dtrace/src/dtrace.erl index 45addafc53..6951c03215 100644 --- a/lib/dtrace/src/dtrace.erl +++ b/lib/dtrace/src/dtrace.erl @@ -14,8 +14,8 @@ %%% four integer arguments and four string arguments; the integer %%% argument(s) must come before any string argument. For example: %%% ``` -%%% 1> put(dtrace_utag, "GGOOOAAALL!!!!!"). -%%% undefined +%%% 1> dtrace:put_tag("GGOOOAAALL!!!!!"). +%%% true %%% 2> dtrace:init(). %%% ok %%% @@ -35,9 +35,13 @@ %%% then the driver will ignore the user's input and use a default %%% value of 0 or NULL, respectively. +-define(DTRACE_UT_KEY, '_dtrace_utag_@_@'). % Match prim_file:get_dtrace_utag()! + -export([init/0, available/0, user_trace_s1/1, % TODO: unify with pid & tag args like user_trace_i4s4 p/0, p/1, p/2, p/3, p/4, p/5, p/6, p/7, p/8]). +-export([put_utag/1, get_utag/0]). + -export([scaff/0]). % Development only -export([user_trace_i4s4/9]). % Know what you're doing! @@ -68,7 +72,7 @@ available() -> -spec user_trace_s1(iolist()) -> true | false | error | badarg. -user_trace_s1(Message) -> +user_trace_s1(_Message) -> erlang:nif_error(nif_not_loaded). -spec user_trace_i4s4(iolist(), @@ -176,8 +180,32 @@ p(I1, I2, I3, I4, S1, S2, S3, S4) when is_integer(I1), is_integer(I2), is_intege true | false | error | badarg. user_trace_int(I1, I2, I3, I4, S1, S2, S3, S4) -> - UTag = prim_file:get_dtrace_utag(), - user_trace_i4s4(UTag, I1, I2, I3, I4, S1, S2, S3, S4). + UTag = get_utag(), + try + user_trace_i4s4(UTag, I1, I2, I3, I4, S1, S2, S3, S4) + catch + error:nif_not_loaded -> + false + end. + +-spec put_utag(undefined | iolist()) -> ok. + +put_utag(undefined) -> + put_utag(<<>>); +put_utag(T) when is_binary(T) -> + put(?DTRACE_UT_KEY, T), + ok; +put_utag(T) when is_list(T) -> + put(?DTRACE_UT_KEY, list_to_binary(T)), + ok. + +get_utag() -> + case get(?DTRACE_UT_KEY) of + undefined -> + <<>>; + X -> + X + end. %% Scaffolding to write tedious code: quick brute force and not 100% correct. |