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Diffstat (limited to 'utils.mk')
| -rw-r--r-- | utils.mk | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/utils.mk b/utils.mk new file mode 100644 index 0000000..f14772c --- /dev/null +++ b/utils.mk @@ -0,0 +1,293 @@ +# +# Copyright (C) 2008 NVIDIA Corporation +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of the +# License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the: +# +# Free Software Foundation, Inc. +# 59 Temple Place - Suite 330 +# Boston, MA 02111-1307, USA +# +# +# utils.mk: common Makefile fragment used by nvidia-xconfig, +# nvidia-installer, and nvidia-settings +# + + + +############################################################################## +# The calling Makefile (when building as part of the NVIDIA graphics +# driver) may export any of the following variables; we assign default +# values if they are not exported by the caller +############################################################################## + +CC ?= gcc +LD ?= ld +CFLAGS ?= -Wall -fno-strict-aliasing +CFLAGS += -O2 -fno-omit-frame-pointer +CC_ONLY_CFLAGS ?= +LDFLAGS ?= +BIN_LDFLAGS ?= + +HOST_CC ?= $(CC) +HOST_LD ?= $(LD) +HOST_CFLAGS ?= $(CFLAGS) +HOST_LDFLAGS ?= $(LDFLAGS) +HOST_BIN_LDFLAGS ?= + +ifeq ($(DEBUG),1) + STRIP_CMD ?= true + CFLAGS += -O0 -g +else + STRIP_CMD ?= strip +endif + +INSTALL ?= install +INSTALL_BIN_ARGS ?= -m 755 +INSTALL_DOC_ARGS ?= -m 644 + +M4 ?= m4 +SED ?= sed +M4 ?= m4 +ECHO ?= echo +PRINTF ?= printf +MKDIR ?= mkdir -p +RM ?= rm -f +TOUCH ?= touch +WHOAMI ?= whoami +HOSTNAME_CMD ?= hostname +DATE ?= date +GZIP_CMD ?= gzip + +NV_AUTO_DEPEND ?= 1 +NV_VERBOSE ?= 0 + +ifndef TARGET_OS + TARGET_OS := $(shell uname) +endif + +ifeq ($(TARGET_OS),Linux) + CFLAGS += -DNV_LINUX +endif + +ifeq ($(TARGET_OS),FreeBSD) + CFLAGS += -DNV_BSD +endif + +ifeq ($(TARGET_OS),SunOS) + CFLAGS += -DNV_SUNOS +endif + +ifndef TARGET_ARCH + TARGET_ARCH := $(shell uname -m) + TARGET_ARCH := $(subst i386,x86,$(TARGET_ARCH)) + TARGET_ARCH := $(subst i486,x86,$(TARGET_ARCH)) + TARGET_ARCH := $(subst i586,x86,$(TARGET_ARCH)) + TARGET_ARCH := $(subst i686,x86,$(TARGET_ARCH)) +endif + +OUTPUTDIR ?= _out/$(TARGET_OS)_$(TARGET_ARCH) + +NV_QUIET_COMMAND_REMOVED_TARGET_PREFIX ?= + +CFLAGS += $(CC_ONLY_CFLAGS) + + +############################################################################## +# define variables used when installing the open source utilities from +# the source tarball +############################################################################## + +prefix = /usr/local + +exec_prefix = $(prefix) +bindir = $(exec_prefix)/bin +mandir = $(exec_prefix)/share/man/man1 + + +############################################################################## +# default build rule, so that nothing here in utils.mk accidentally +# gets selected as the default rule +############################################################################## + +default build: all + + +############################################################################## +# get the definition of NVIDIA_VERSION from version.mk +# +# version.mk may be in one of two places: either in $(OUTPUTDIR) when +# building as part of the NVIDIA driver build, or directly in the +# source directory when building from the source tarball +############################################################################## + +include $(wildcard $(OUTPUTDIR)/version.mk version.mk) + + +############################################################################## +# to generate the dependency files, use the compiler's "-MM" option to +# generate output of the form "foo.o : foo.c foo.h"; then, use sed to +# wrap the prerequisites with $(wildcard ...); the wildcard function +# serves as an existence filter, so that files that are later removed +# from the build do not cause stale references. Also, "-MM" will +# cause the compiler to name the target as if it were in the current +# directory ("foo.o: "); use sed to rename the target in the output +# directory ("_out/Linux_x86/foo.o: ") so that the target actually +# applies to the object files produced in the build. +# +# Arguments: +# $(1): CC command (CC or HOST_CC) +# $(2): object filename +############################################################################## + +ifeq ($(NV_AUTO_DEPEND),1) + AUTO_DEP_CMD = && $($(1)) -MM $$(CFLAGS) $$< | $$(SED) \ + -e "s,: ,: $$$$\(wildcard ," \ + -e "s,\([^\\]\)$$$$,\1)," \ + -e "s;^$$(notdir $(2)): ;$(2): ;" \ + > $$(@:.o=.d) +else + AUTO_DEP_CMD = +endif + + +############################################################################## +# echo minimal compile information in the non-NV_VERBOSE case +# +# NV_MODULE_LOGGING_NAME can be set to prepend quiet build output with a +# label of which build component is being built +############################################################################## + +NV_MODULE_LOGGING_NAME ?= + +ifeq ($(NV_VERBOSE),0) + quiet_cmd = @$(PRINTF) \ + " $(if $(NV_MODULE_LOGGING_NAME),[ %-17.17s ]) $(quiet_$(1))\n" \ + "$(NV_MODULE_LOGGING_NAME)" && $($(1)) +else + quiet_cmd = $($(1)) +endif + +# define LINK and HOST_LINK to be the same as CC; this is so that, +# even though we use CC to link programs, we can have a different +# quiet rule that uses '$@' as it's arg, rather than '$<' +LINK = $(CC) +HOST_LINK = $(HOST_CC) + +# strip NV_QUIET_COMMAND_REMOVED_TARGET_PREFIX from the target string +define_quiet_cmd = $(1) $(patsubst $(NV_QUIET_COMMAND_REMOVED_TARGET_PREFIX)/%,%,$(2)) + +# define the quiet commands: +quiet_CC = $(call define_quiet_cmd,CC ,$<) +quiet_HOST_CC = $(call define_quiet_cmd,HOST_CC ,$<) +quiet_LINK = $(call define_quiet_cmd,LINK ,$@) +quiet_HOST_LINK = $(call define_quiet_cmd,HOST_LINK ,$@) +quiet_M4 = $(call define_quiet_cmd,M4 ,$<) +quiet_STRIP_CMD = $(call define_quiet_cmd,STRIP ,$@) + +############################################################################## +# Tell gmake to delete the target of a rule if it has changed and its +# commands exit with a nonzero exit status. +############################################################################## +.DELETE_ON_ERROR: + + +############################################################################## +# function to generate a list of object files from their corresponding +# source files; example usage: +# +# OBJS = $(call BUILD_OBJECT_LIST,$(SRC)) +############################################################################## + +BUILD_OBJECT_LIST = \ + $(addprefix $(OUTPUTDIR)/,$(notdir $(addsuffix .o,$(basename $(1))))) + + +############################################################################## +# function to generate a list of dependency files from their +# corresponding source files; example usage: +# +# DEPS = $(call BUILD_DEPENDENCY_LIST,$(SRC)) +############################################################################## + +BUILD_DEPENDENCY_LIST = \ + $(addprefix $(OUTPUTDIR)/,$(notdir $(addsuffix .d,$(basename $(1))))) + + +############################################################################## +# functions to define a rule to build an object file; the first +# argument is either CC or HOST_CC, the second argument is the source +# file to compile, and the third argument (_WITH_OBJECT_NAME-only) is +# the object filename to produce. Example usage: +# +# $(eval $(call DEFINE_OBJECT_RULE,CC,foo.c)) +# +# Note this also attempts to include the dependency file for this +# source file. +# +# The DEFINE_OBJECT_RULE is functionally equivalent to +# DEFINE_OBJECT_RULE_WITH_OBJECT_NAME, but infers the object file name +# from the source file name (this is normally what you want). +############################################################################## + +define DEFINE_OBJECT_RULE_WITH_OBJECT_NAME + $(3): $(2) + @$(MKDIR) $(OUTPUTDIR) + $$(call quiet_cmd,$(1)) -c $$< -o $$@ $$(CFLAGS) \ + $(call AUTO_DEP_CMD,$(1),$(3)) + + -include $$(call BUILD_DEPENDENCY_LIST,$(3)) + + # declare empty rule for generating dependency file; we generate the + # dependency files implicitly when compiling the source file (see + # AUTO_DEP_CMD above), so we don't want gmake to spend time searching + # for an explicit rule to generate the dependency file + $$(call BUILD_DEPENDENCY_LIST,$(3)): ; + +endef + +define DEFINE_OBJECT_RULE + $$(eval $$(call DEFINE_OBJECT_RULE_WITH_OBJECT_NAME,$(1),$(2),\ + $$(call BUILD_OBJECT_LIST,$(2)))) +endef + + +############################################################################## +# STAMP_C - this is a source file that is generated during the build +# to capture information about the build environment for the utility. +# +# The DEFINE_STAMP_C_RULE function is used to define the rule for +# generating STAMP_C. First argument is a list of dependencies for +# STAMP_C (g_stamp.o is filtered out of the list); second argument is +# the name of the program being built. +# +# The includer of utils.mk should add $(STAMP_C) to its list of source +# files +############################################################################## + +STAMP_C = $(OUTPUTDIR)/g_stamp.c + +define DEFINE_STAMP_C_RULE + + $$(STAMP_C): $$(filter-out \ + $$(call BUILD_OBJECT_LIST,$$(STAMP_C)),$(1)) \ + $$(wildcard version.mk $$(OUTPUTDIR)/version.mk) + @ $$(RM) $$@ + @ $$(PRINTF) "const char NV_ID[] = \"nvidia id: " >> $$@ + @ $$(PRINTF) "$(2): " >> $$@ + @ $$(PRINTF) "version $$(NVIDIA_VERSION) " >> $$@ + @ $$(PRINTF) "($$(shell $$(WHOAMI))@$$(shell $$(HOSTNAME_CMD))) " >> $$@ + @ $$(PRINTF) "$$(shell $(DATE))\";\n" >> $$@ + @ $$(PRINTF) "const char *pNV_ID = NV_ID + 11;\n" >> $$@ + +endef |