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Diffstat (limited to 'usr/src/uts/Makefile.mapfile')
| -rw-r--r-- | usr/src/uts/Makefile.mapfile | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/usr/src/uts/Makefile.mapfile b/usr/src/uts/Makefile.mapfile new file mode 100644 index 0000000000..45ab0ae22b --- /dev/null +++ b/usr/src/uts/Makefile.mapfile @@ -0,0 +1,43 @@ +# +# This file and its contents are supplied under the terms of the +# Common Development and Distribution License ("CDDL"), version 1.0. +# You may only use this file in accordance with the terms of version +# 1.0 of the CDDL. +# +# A full copy of the text of the CDDL should have accompanied this +# source. A copy of the CDDL is also available via the Internet at +# http://www.illumos.org/license/CDDL. +# + +# +# Copyright 2016 Joyent, Inc. +# + +# +# This Makefile should be included in individual kernel modules to opt +# into a -z defs world. Note, this should be included after a MAPFILES +# entry is defined. See uts/common/README.mapfiles for more information. +# + +# +# Mapfile base +# +MAPBASE = $(UTSBASE)/common/mapfiles +DTRACE_MAPFILE = $(OBJS_DIR)/dtrace.mapfile + +# +# Always append -z defs to the LD FLAGS and append all mapfiles. +# +LDFLAGS += -z defs $(MAPFILES:%=-M $(MAPBASE)/%.mapfile) -M $(DTRACE_MAPFILE) + +# +# Definitions and rulesto assemble the DTrace probe mapfile. There's no +# good way to automatically do this, hence we have a slightly gross +# series of automated tools. This does mean that we have a bit more work +# to do, but also means that probes can be added arbitrarily without +# having to manually edit mapfiles. +# +DTRACE_AWK_FILE = $(MAPBASE)/dtrace.mapfile.awk + +$(OBJS_DIR)/dtrace.mapfile: $(OBJECTS) $(DTRACE_AWK_FILE) + $(NM) -u $(OBJECTS) | $(AWK) -f $(DTRACE_AWK_FILE) > $@ |