Merge branch 'lukas/erts/tracer-module-and-more/PR-1009/OTP-10268'

* lukas/erts/tracer-module-and-more/PR-1009/OTP-10268: (26 commits)
  erts: Don't trace on link events when port is dead
  erts: more logging in trace_bif_SUITE trace_bif_return
  erts: Make trace_delivered go via sys msg dispatcher again
  erts: Add comment about future trace optimizations
  erts: Optimize tracer reload test
  erts: Document erlang:match_spec_test/3
  runtime_tools: Make dbg work with erl_tracer modules
  runtime_rools: Allow new timestamp trace flags
  runtime_tools: Lots of dbg docs updates
  erts: Deallocate heap fragments from trace nif calls
  eprof: Fix tests after tracer module incompatabilities
  fprof: update to work with new spawned trace event
  erts: Add 'spawned' trace event to 'procs' trace flag
  erts: send and receive no longer need status lock
  erts: Do 'unregister' as "self-tracing"
  erts: Silence harmless valgrind warning in dec_term
  erts: Fix end_per_testcase crash in local_trace_SUITE
  observer: Update ttb to work with tracing on ports
  runtime_tools: Update dbg to work with tracing on ports
  erts: Add tracing examples in match spec docs
  ...

2 files changed, 24 insertions, 58 deletions

diff --git a/lib/runtime_tools/c_src/Makefile.in b/lib/runtime_tools/c_src/Makefile.in
index 58c12e0d88..70b48daf97 100644
--- a/lib/runtime_tools/c_src/Makefile.in
+++ b/lib/runtime_tools/c_src/Makefile.in
@@ -33,21 +33,18 @@ VSN=$(RUNTIME_TOOLS_VSN)
 # be set for that system only.
 # ----------------------------------------------------
 CC = $(DED_CC)
-CFLAGS = $(DED_CFLAGS)
+CFLAGS = $(DED_CFLAGS) -I./
 LD = $(DED_LD)
 SHELL = /bin/sh
 LIBS = $(DED_LIBS)
 LDFLAGS += $(DED_LDFLAGS)
 
-DTRACE_LIBNAME = dyntrace
+TRACE_LIBNAME = dyntrace trace_file_drv trace_ip_drv
 
 SYSINCLUDE = $(DED_SYS_INCLUDE)
 
 TRACE_DRV_INCLUDES = $(SYSINCLUDE)
 
-ALL_CFLAGS = $(CFLAGS) @DEFS@ $(TYPE_FLAGS) $(TRACE_DRV_INCLUDES) \
-	-I$(OBJDIR) -I$(ERL_TOP)/erts/emulator/$(TARGET)
-
 ifeq ($(TYPE),debug)
 TYPEMARKER = .debug
 TYPE_FLAGS = $(subst -O3,,$(subst -O2,,$(CFLAGS))) -DDEBUG @DEBUG_FLAGS@
@@ -61,6 +58,9 @@ TYPE_FLAGS = $(CFLAGS)
 endif
 endif
 
+ALL_CFLAGS = @DEFS@ $(TYPE_FLAGS) $(TRACE_DRV_INCLUDES) \
+	-I$(OBJDIR) -I$(ERL_TOP)/erts/emulator/$(TARGET)
+
 ROOTDIR = $(ERL_TOP)/lib
 PRIVDIR = ../priv
 LIBDIR = $(PRIVDIR)/lib/$(TARGET)
@@ -74,37 +74,16 @@ RELSYSDIR = $(RELEASE_PATH)/lib/runtime_tools-$(VSN)
 # ----------------------------------------------------
 # Misc Macros
 # ----------------------------------------------------
-before_DTrace_OBJS = $(OBJDIR)/dyntrace$(TYPEMARKER).o
-## NIF_MAKEFILE = $(PRIVDIR)/Makefile
 
-# Higher-level makefiles says that we can only compile on UNIX flavors
-NIF_LIB = $(LIBDIR)/dyntrace$(TYPEMARKER).@DED_EXT@
+TRACE_LIBS = $(foreach LIB, $(TRACE_LIBNAME), $(LIBDIR)/$(LIB)$(TYPEMARKER).@DED_EXT@)
 
-ifeq ($(HOST_OS),)
-HOST_OS := $(shell $(ERL_TOP)/erts/autoconf/config.guess)
-endif
-
-TRACE_IP_DRV_OBJS = \
-	$(OBJDIR)/trace_ip_drv.o
-
-TRACE_FILE_DRV_OBJS = \
-	$(OBJDIR)/trace_file_drv.o
-
-ifeq ($(findstring win32,$(TARGET)), win32)
-SOLIBS = $(LIBDIR)/trace_ip_drv.dll $(LIBDIR)/trace_file_drv.dll
-LN=cp
-else
-SOLIBS = $(LIBDIR)/trace_ip_drv.so $(LIBDIR)/trace_file_drv.so
-endif
 # ----------------------------------------------------
 # Targets
 # ----------------------------------------------------
 
 _create_dirs := $(shell mkdir -p $(OBJDIR) $(LIBDIR))
 
-debug opt valgrind: $(SOLIBS) $(OBJDIR) $(LIBDIR) $(NIF_LIB)
-
-DYNTRACE_OBJS = $(before_DTrace_OBJS)
+debug opt valgrind: $(SOLIBS) $(OBJDIR) $(LIBDIR) $(TRACE_LIBS)
 
 $(OBJDIR):
 	-@mkdir -p $(OBJDIR)
@@ -112,50 +91,26 @@ $(OBJDIR):
 $(LIBDIR):
 	-@mkdir -p $(LIBDIR)
 
-$(OBJDIR)/dyntrace$(TYPEMARKER).o: dyntrace.c
-	$(V_at)$(INSTALL_DIR) $(OBJDIR)
-	$(V_CC) -c -o $@ $(ALL_CFLAGS) $<
-
-$(NIF_LIB): $(DYNTRACE_OBJS)
-	$(V_at)$(INSTALL_DIR) $(LIBDIR)
-	$(V_LD) $(LDFLAGS) -o $@ $^ $(LDLIBS)
-
-$(OBJDIR)/%.o: %.c
+$(OBJDIR)/%$(TYPEMARKER).o: %.c
 	$(V_CC) -c -o $@ $(ALL_CFLAGS) $<
 
-$(LIBDIR)/trace_ip_drv.so: $(TRACE_IP_DRV_OBJS)
-	$(V_LD) $(LDFLAGS) -o $@ $^ -lc $(LIBS)
-
-$(LIBDIR)/trace_file_drv.so: $(TRACE_FILE_DRV_OBJS)
-	$(V_LD) $(LDFLAGS) -o $@ $^ -lc $(LIBS)
-
-$(LIBDIR)/trace_ip_drv.dll: $(TRACE_IP_DRV_OBJS)
-	$(V_LD) $(LDFLAGS) -o $@ $^ $(LIBS)
-$(LIBDIR)/trace_file_drv.dll: $(TRACE_FILE_DRV_OBJS)
+$(LIBDIR)/%$(TYPEMARKER).@DED_EXT@: $(OBJDIR)/%$(TYPEMARKER).o
 	$(V_LD) $(LDFLAGS) -o $@ $^ $(LIBS)
 
 clean:
-	rm -f $(SOLIBS) $(TRACE_IP_DRV_OBJS) $(TRACE_FILE_DRV_OBJS)
-	rm -f $(LIBDIR)/dyntrace.@DED_EXT@
-	rm -f $(LIBDIR)/dyntrace.debug.@DED_EXT@
-	rm -f $(LIBDIR)/dyntrace.valgrind.@DED_EXT@
-	rm -f $(OBJDIR)/dyntrace.o
-	rm -f $(OBJDIR)/dyntrace.debug.o
-	rm -f $(OBJDIR)/dyntrace.valgrind.o
+	rm -f $(TRACE_LIBS)
 	rm -f core *~
 
 docs:
 
 # ----------------------------------------------------
 # Release Target
-# ---------------------------------------------------- 
+# ----------------------------------------------------
 include $(ERL_TOP)/make/otp_release_targets.mk
 
 release_spec: opt
-	$(INSTALL_DIR) "$(RELSYSDIR)/priv/obj"
 	$(INSTALL_DIR) "$(RELSYSDIR)/priv/lib"
-	$(INSTALL_PROGRAM) $(DYNTRACE_OBJS) "$(RELSYSDIR)/priv/obj"
-	$(INSTALL_PROGRAM) $(NIF_LIB) $(SOLIBS) "$(RELSYSDIR)/priv/lib"
+	$(INSTALL_PROGRAM) $(TRACE_LIBS) "$(RELSYSDIR)/priv/lib"
 
 release_docs_spec:
 
diff --git a/lib/runtime_tools/c_src/trace_file_drv.c b/lib/runtime_tools/c_src/trace_file_drv.c
index 703766c188..e7fd5968c1 100644
--- a/lib/runtime_tools/c_src/trace_file_drv.c
+++ b/lib/runtime_tools/c_src/trace_file_drv.c
@@ -172,6 +172,7 @@ static ErlDrvData trace_file_start(ErlDrvPort port, char *buff);
 static void trace_file_stop(ErlDrvData handle);
 static void trace_file_output(ErlDrvData handle, char *buff,
 			      ErlDrvSizeT bufflen);
+static void trace_file_outputv(ErlDrvData handle, ErlIOVec *ev);
 static void trace_file_finish(void);
 static ErlDrvSSizeT trace_file_control(ErlDrvData handle,
 				      unsigned int command, 
@@ -214,7 +215,7 @@ ErlDrvEntry trace_file_driver_entry = {
     NULL,                  /* void * that is not used (BC) */
     trace_file_control,    /* F_PTR control, port_control callback */
     trace_file_timeout,    /* F_PTR timeout, driver_set_timer callback */
-    NULL,                  /* F_PTR outputv, reserved */
+    trace_file_outputv,    /* F_PTR outputv, reserved */
     NULL, /* ready_async */
     NULL, /* flush */
     NULL, /* call */
@@ -363,6 +364,16 @@ static void trace_file_stop(ErlDrvData handle)
 /*
 ** Data sent from erlang to port.
 */
+static void trace_file_outputv(ErlDrvData handle, ErlIOVec *ev)
+{
+    int i;
+    for (i = 0; i < ev->vsize; i++) {
+        if (ev->iov[i].iov_len)
+            trace_file_output(handle, ev->iov[i].iov_base,
+                              ev->iov[i].iov_len);
+    }
+}
+
 static void trace_file_output(ErlDrvData handle, char *buff,
 			      ErlDrvSizeT bufflen)
 {