1# 2# This file and its contents are supplied under the terms of the 3# Common Development and Distribution License ("CDDL"), version 1.0. 4# You may only use this file in accordance with the terms of version 5# 1.0 of the CDDL. 6# 7# A full copy of the text of the CDDL should have accompanied this 8# source. A copy of the CDDL is also available via the Internet at 9# http://www.illumos.org/license/CDDL. 10# 11 12# 13# Copyright 2016 Joyent, Inc. 14# Copyright 2021 Oxide Computer Company 15# 16 17# 18# This Makefile should be included in individual kernel modules to opt 19# into a -z defs world. Note, this should be included after a MAPFILES 20# entry is defined. See uts/common/README.mapfiles for more information. 21# 22 23# 24# Mapfile base 25# 26MAPBASE = $(UTSBASE)/common/mapfiles 27DTRACE_MAPFILE = $(OBJS_DIR)/dtrace.mapfile 28 29# 30# Always append -z defs to the LD FLAGS and append all mapfiles. 31# 32LDFLAGS += -z defs $(MAPFILES:%=-M $(MAPBASE)/%.mapfile) -M $(DTRACE_MAPFILE) 33 34# 35# Definitions and rules to assemble the DTrace probe mapfile. There's no 36# good way to automatically do this, hence we have a slightly gross 37# series of automated tools. This does mean that we have a bit more work 38# to do, but also means that probes can be added arbitrarily without 39# having to manually edit mapfiles. 40# 41DTRACE_AWK_FILE = $(MAPBASE)/dtrace.mapfile.awk 42 43$(OBJS_DIR)/dtrace.mapfile: $(OBJECTS) $(DTRACE_AWK_FILE) 44 $(NM) -u $(OBJECTS) | $(AWK) -f $(DTRACE_AWK_FILE) > $@ 45 46# 47# Make sure that we don't leave behind the DTrace related mapfiles. 48# 49CLEANFILES += $(DTRACE_MAPFILE) 50