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7a6a5a1f9a
open-gpu-kernel-modules/utils.mk
Bernhard Stoeckner 91676d6628
550.40.07
2024-01-24 18:28:48 +01:00

609 lines
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#
# Copyright (C) 2008 NVIDIA Corporation
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#
#
# 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
CXX ?= g++
LD ?= ld
AR ?= ar
# only set these warnings if CFLAGS is unset
CFLAGS ?= -Wall
# always set these -f CFLAGS
CFLAGS += -fno-strict-aliasing -fno-omit-frame-pointer -Wformat=2
CC_ONLY_CFLAGS ?= -Wstrict-prototypes -Wold-style-definition
CXX_ONLY_CFLAGS ?=
LDFLAGS ?=
BIN_LDFLAGS ?=
EXTRA_CFLAGS ?=
STACK_USAGE_WARNING ?=
CFLAGS += $(if $(STACK_USAGE_WARNING),-Wstack-usage=$(STACK_USAGE_WARNING))
HOST_CC ?= $(CC)
HOST_LD ?= $(LD)
HOST_CFLAGS ?= $(CFLAGS)
HOST_CC_ONLY_CFLAGS ?=
HOST_CXX_ONLY_CFLAGS ?=
HOST_LDFLAGS ?= $(LDFLAGS)
HOST_BIN_LDFLAGS ?=
# always disable warnings that will break the build
CC_ONLY_CFLAGS += -Wno-format-zero-length
CFLAGS += -Wno-unused-parameter
HOST_CC_ONLY_CFLAGS += -Wno-format-zero-length
HOST_CFLAGS += -Wno-unused-parameter
# Treat warnings as errors, if requested
WARNINGS_AS_ERRORS ?=
CFLAGS += $(if $(WARNINGS_AS_ERRORS),-Werror)
DEBUG ?=
DEVELOP ?=
ifeq ($(DEBUG),1)
STRIP_CMD ?= true
DO_STRIP ?=
CFLAGS += -O0 -g
CFLAGS += -DDEBUG=1
else
CFLAGS += -O2
endif
ifeq ($(DEVELOP),1)
STRIP_CMD ?= true
DO_STRIP ?=
CFLAGS += -DDEVELOP=1
endif
CFLAGS += $(EXTRA_CFLAGS)
STRIP_CMD ?= strip
DO_STRIP ?= 1
INSTALL ?= install
INSTALL_BIN_ARGS ?= -m 755
INSTALL_LIB_ARGS ?= -m 644
INSTALL_DOC_ARGS ?= -m 644
M4 ?= m4
SED ?= sed
M4 ?= m4
ECHO ?= echo
PRINTF ?= printf
MKDIR ?= mkdir -p
RM ?= rm -f
TOUCH ?= touch
HARDLINK ?= ln -f
DATE ?= date
GZIP_CMD ?= gzip
CHMOD ?= chmod
OBJCOPY ?= objcopy
XZ ?= xz
WHOAMI ?= whoami
PKG_CONFIG ?= pkg-config
ifndef HOSTNAME
HOSTNAME = $(shell hostname)
endif
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
ifneq ($(TARGET_OS),SunOS)
TARGET_ARCH := $(shell uname -m)
else
TARGET_ARCH := $(shell isainfo -n)
endif
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))
TARGET_ARCH := $(subst amd64,x86_64,$(TARGET_ARCH))
endif
ifeq ($(TARGET_ARCH),x86)
CFLAGS += -DNV_X86 -DNV_ARCH_BITS=32
endif
ifeq ($(TARGET_ARCH),x86_64)
CFLAGS += -DNV_X86_64 -DNV_ARCH_BITS=64
endif
ifeq ($(TARGET_ARCH),armv7l)
CFLAGS += -DNV_ARMV7 -DNV_ARCH_BITS=32
endif
ifeq ($(TARGET_ARCH),aarch64)
CFLAGS += -DNV_AARCH64 -DNV_ARCH_BITS=64
endif
ifeq ($(TARGET_ARCH),ppc64le)
CFLAGS += -DNV_PPC64LE -DNV_ARCH_BITS=64
endif
ifeq ($(TARGET_OS),Linux)
LIBDL_LIBS = -ldl
else
LIBDL_LIBS =
endif
# This variable controls which floating-point ABI is targeted. For ARM, it
# defaults to "gnueabi" for softfp. Another option is "gnueabihf" for
# hard(fp). This is necessary to pick up the correct rtld_test binary.
# All other architectures default to empty.
ifeq ($(TARGET_ARCH),armv7l)
TARGET_ARCH_ABI ?= gnueabi
endif
TARGET_ARCH_ABI ?=
ifeq ($(TARGET_ARCH_ABI),gnueabi)
CFLAGS += -DNV_GNUEABI
endif
ifeq ($(TARGET_ARCH_ABI),gnueabihf)
CFLAGS += -DNV_GNUEABIHF
endif
OUTPUTDIR ?= _out/$(TARGET_OS)_$(TARGET_ARCH)
OUTPUTDIR_ABSOLUTE ?= $(CURDIR)/$(OUTPUTDIR)
NV_SEPARATE_DEBUG_INFO ?=
NV_KEEP_UNSTRIPPED_BINARIES ?=
NV_QUIET_COMMAND_REMOVED_TARGET_PREFIX ?=
NV_GENERATED_HEADERS ?=
##############################################################################
# This makefile uses the $(eval) builtin function, which was added in
# GNU make 3.80. Check that the current make version recognizes it.
# Idea suggested by "The GNU Make Book" by John Graham-Cumming.
##############################################################################
_eval_available :=
$(eval _eval_available := T)
ifneq ($(_eval_available),T)
$(error This Makefile requires a GNU Make that supports 'eval'. Please upgrade to GNU make 3.80 or later)
endif
##############################################################################
# Test passing $(1) to $(CC). If $(CC) succeeds, then echo $(1).
#
# Because this uses $(shell), it is best to use this to assign simply expanded
# variables (e.g., ":=").
#
# Example usage:
# CONDITIONAL_CFLAGS := $(call TEST_CC_ARG, -ffoo)
##############################################################################
TEST_CC_ARG = \
$(shell $(CC) -c -x c /dev/null -Werror $(1) -o /dev/null > /dev/null 2>&1 && \
$(ECHO) $(1))
##############################################################################
# Test if instruction $(1) is understood by the assembler
# Returns "1" if the instruction is understood, else returns empty string.
#
# Example usage:
# ENDBR_SUPPORTED := $(call AS_HAS_INSTR, endbr64)
##############################################################################
AS_HAS_INSTR = \
$(shell if ($(ECHO) "$(1)" | $(CC) -c -x assembler - -o /dev/null) >/dev/null 2>&1 ;\
then $(ECHO) "1"; else $(ECHO) ""; fi)
##############################################################################
# define variables used when installing the open source utilities from
# the source tarball
##############################################################################
PREFIX ?= /usr/local
BINDIR = $(DESTDIR)$(PREFIX)/bin
LIBDIR = $(DESTDIR)$(PREFIX)/lib
MANDIR = $(DESTDIR)$(PREFIX)/share/man/man1
##############################################################################
# default build rule, so that nothing here in utils.mk accidentally
# gets selected as the default rule
##############################################################################
default build: all
.PHONY: default build
##############################################################################
# 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
#
# Throw an error if one of these two places did not define NVIDIA_VERSION.
##############################################################################
VERSION_MK_DIR ?= .
VERSION_MK := $(wildcard $(OUTPUTDIR)/version.mk $(VERSION_MK_DIR)/version.mk )
include $(VERSION_MK)
ifndef NVIDIA_VERSION
$(error NVIDIA_VERSION undefined)
endif
##############################################################################
# NV_GET_SOURCE_TYPE: if the source file $(1) should be compiled as C, this
# evalutes to "CC"; if the source file $(1) should be compiled as C++, this
# evalutes to "CXX".
##############################################################################
NV_GET_SOURCE_TYPE = $(strip \
$(if $(filter %.c, $(1)),CC, \
$(if $(filter %.cpp, $(1)),CXX, \
$(error Unrecognized source $(1)))))
##############################################################################
# Several of the functions below take an argument that indicates if
# the expression is for the target platform (the system the built
# program is going to run on) or the host platform (the system
# performing the build). The argument is either "HOST" or "TARGET"
# and needs to be converted:
#
# "HOST" -> "HOST_"
# "TARGET" -> ""
##############################################################################
host_target = $(patsubst HOST,HOST_,$(patsubst TARGET,,$(1)))
##############################################################################
# To generate the dependency files:
#
# - Use the compiler's "-MMD" option to generate output of the form
# "foo.o : foo.c foo.h bar.h".
#
# - Also, "-MMD" will cause the compiler to name the target as if it were in the
# current directory ("foo.o: "); use -MT to rename the target in the output
# directory ("_out/Linux_x86/foo.o: ") so that the target actually applies to
# the object files produced in the build.
#
# - Use -MP to generate a phony target for each of those prerequisites (except
# the source file being compiled). E.g.,
# "foo.o : foo.c foo.h bar.h
# foo.h:
# bar.h:"
# so that the makefile can handle incremental builds after a prerequisite has
# been deleted from source control.
#
# - Use sed to remove the source file from the list of prerequisties in the
# above, so that the makefile can handle increment builds after the source has
# moved from one directory to another. The DEFINE_OBJECT_RULE macro spells
# out the obj: src dependency, so we don't require it here.
##############################################################################
ifeq ($(NV_AUTO_DEPEND),1)
AUTO_DEP_SUFFIX = -MMD -MF $$(@:.o=.d.to_be_processed) -MP -MT $$@ && \
$$(SED) -e "1,3s| $$< | |" < $$(@:.o=.d.to_be_processed) > $$(@:.o=.d)
else
AUTO_DEP_SUFFIX =
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)
at_if_quiet := @
quiet_cmd_no_at = $(PRINTF) \
" $(if $(NV_MODULE_LOGGING_NAME),[ %-17.17s ],%s) $(quiet_$(1))\n" \
"$(NV_MODULE_LOGGING_NAME)" && $($(1))
quiet_cmd = @$(quiet_cmd_no_at)
else
at_if_quiet :=
quiet_cmd_no_at = $($(1))
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_CXX = $(call define_quiet_cmd,CXX ,$<)
quiet_HOST_CC = $(call define_quiet_cmd,HOST_CC ,$<)
quiet_HOST_CXX = $(call define_quiet_cmd,HOST_CXX ,$<)
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 = $(call define_quiet_cmd,STRIP ,$@)
quiet_HARDLINK = $(call define_quiet_cmd,HARDLINK ,$@)
quiet_LD = $(call define_quiet_cmd,LD ,$@)
quiet_OBJCOPY = $(call define_quiet_cmd,OBJCOPY ,$@)
quiet_AR = $(call define_quiet_cmd,AR ,$@)
quiet_XZ = $(call define_quiet_cmd,XZ ,$@)
##############################################################################
# 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 using the specified path. The _WITH_DIR variant takes an
# output path as the second argument while the BUILD_OBJECT_LIST defaults
# to using the value of OUTPUTDIR as the output path. example usage:
#
# OBJS = $(call BUILD_OBJECT_LIST_WITH_DIR,$(SRC),$(DIR))
##############################################################################
BUILD_OBJECT_LIST_WITH_DIR = \
$(addprefix $(2)/,$(notdir $(addsuffix .o,$(basename $(1)))))
BUILD_OBJECT_LIST = \
$(call BUILD_OBJECT_LIST_WITH_DIR,$(1),$(OUTPUTDIR))
##############################################################################
# function to generate a list of dependency files from their
# corresponding source files using the specified path. The _WITH_DIR
# variant takes an output path as the second argument while the
# BUILD_DEPENDENCY_LIST default to using the value of OUTPUTDIR as the
# output path. example usage:
#
# DEPS = $(call BUILD_DEPENDENCY_LIST_WITH_DIR,$(SRC),$(DIR))
##############################################################################
BUILD_DEPENDENCY_LIST_WITH_DIR = \
$(addprefix $(2)/,$(notdir $(addsuffix .d,$(basename $(1)))))
BUILD_DEPENDENCY_LIST = \
$(call BUILD_DEPENDENCY_LIST_WITH_DIR,$(1),$(OUTPUTDIR))
##############################################################################
# functions to define a rule to build an object file; the first
# argument for all functions is whether the rule is for the target or
# host platform ("HOST" or "TARGET"), the second argument for all
# functions is the source file to compile.
#
# An order-only dependency is added on any generated header files listed in
# $(NV_GENERATED_HEADERS), to ensure they're present before invoking the
# compiler. For incremental builds where the object file already exists, a
# real (not order-only) dependency will be created by automatic dependency
# tracking if needed.
#
# The _WITH_OBJECT_NAME and _WITH_DIR function name suffixes describe
# the third and possibly fourth arguments based on order. The
# _WITH_OBJECT_NAME argument is the object filename to produce while
# the _WITH_DIR argument is the destination path for the object file.
#
# Example usage:
#
# $(eval $(call DEFINE_OBJECT_RULE,TARGET,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).
#
# Arguments:
# $(1) : HOST or TARGET
# $(2) : source file
# $(3) : object file
# $(4) : directory
##############################################################################
define DEFINE_OBJECT_RULE_WITH_OBJECT_NAME_WITH_DIR
$(3): NV_SOURCE_TYPE = $$(call NV_GET_SOURCE_TYPE,$(2))
# obj: {HOST_,}CFLAGS += $$({HOST_,}{CC,CXX}_ONLY_CFLAGS)
$(3): $$(call host_target,$(1))CFLAGS += \
$$($(call host_target,$(1))$$(NV_SOURCE_TYPE)_ONLY_CFLAGS)
$(3): $(2) | $$(NV_GENERATED_HEADERS)
@$(MKDIR) $(4)
$$(call quiet_cmd,$(call host_target,$(1))$$(NV_SOURCE_TYPE)) \
$$($(call host_target,$(1))CFLAGS) -c $$< -o $$@ \
$(AUTO_DEP_SUFFIX)
-include $$(call BUILD_DEPENDENCY_LIST_WITH_DIR,$(3),$(4))
# declare empty rule for generating dependency file; we generate the
# dependency files implicitly when compiling the source file (see
# AUTO_DEP_SUFFIX above), so we don't want gmake to spend time searching
# for an explicit rule to generate the dependency file
$$(call BUILD_DEPENDENCY_LIST_WITH_DIR,$(3),$(4)): ;
endef
define DEFINE_OBJECT_RULE_WITH_OBJECT_NAME
$$(eval $$(call DEFINE_OBJECT_RULE_WITH_OBJECT_NAME_WITH_DIR,$(1),$(2),\
$(3),$(OUTPUTDIR)))
endef
define DEFINE_OBJECT_RULE_WITH_DIR
$$(eval $$(call DEFINE_OBJECT_RULE_WITH_OBJECT_NAME_WITH_DIR,$(1),$(2),\
$$(call BUILD_OBJECT_LIST_WITH_DIR,$(2),$(3)),$(3)))
endef
define DEFINE_OBJECT_RULE
$$(eval $$(call DEFINE_OBJECT_RULE_WITH_DIR,$(1),$(2),$(OUTPUTDIR)))
endef
# This is a function that will generate rules to build
# files with separate debug information, if so requested.
#
# It takes one parameter: (1) Name of unstripped binary
#
# When used, the target for linking should be named (1).unstripped
#
# If separate debug information is requested, it will
# generate a rule to build one from the unstripped binary.
# If requested, it will also retain the unstripped binary.
define DEBUG_INFO_RULES
$(1): $(1).unstripped
ifneq ($(or $(DO_STRIP),$(NV_SEPARATE_DEBUG_INFO)),)
$$(call quiet_cmd,STRIP_CMD) -o $$@ $$<
else
$$(call quiet_cmd,HARDLINK) $$^ $$@
endif
ifeq ($(NV_SEPARATE_DEBUG_INFO),1)
$(1).debug: $(1).unstripped
$$(call quiet_cmd,STRIP_CMD) --only-keep-debug -o $$@ $$<
$(1): $(1).debug
endif
ifneq ($(NV_KEEP_UNSTRIPPED_BINARIES),1)
.INTERMEDIATE: $(1).unstripped
endif
endef
##############################################################################
# Define rule for generating a source file containing identification information
# for the build.
#
# $(1) string name
# $(2) module name
# $(3) prerequisite object files
##############################################################################
NVIDSTRING = $(OUTPUTDIR)/g_nvid_string.c
ifeq ($(DEBUG),1)
NVIDSTRING_BUILD_TYPE_STRING = Debug Build
else
NVIDSTRING_BUILD_TYPE_STRING = Release Build
endif
define GENERATE_NVIDSTRING
# g_nvid_string.c depends on all objects except g_nvid_string.o, and version.mk
$(NVIDSTRING): $$(filter-out $$(call BUILD_OBJECT_LIST,$$(NVIDSTRING)), $(3)) $$(VERSION_MK)
$(at_if_quiet)$$(MKDIR) $$(dir $$@)
$(at_if_quiet)$$(ECHO) "const char $(1)[] = \"nvidia id: NVIDIA $$(strip $(2)) for $$(TARGET_ARCH) $$(NVIDIA_VERSION) $$(NVIDSTRING_BUILD_TYPE_STRING) (`$$(WHOAMI)`@$$(HOSTNAME)) `$$(DATE)`\";" > $$@
$(at_if_quiet)$$(ECHO) "const char *const p$$(strip $(1)) = $(1) + 11;" >> $$@;
endef
##############################################################################
# Define rules that can be used for embedding a file into an ELF object that
# contains the raw contents of that file and symbols pointing to the embedded
# data.
#
# Note that objcopy will name the symbols in the resulting object file based on
# the filename specified in $(1). For example,
#
# $(eval $(call $(READ_ONLY_OBJECT_FROM_FILE_RULE),a/b/c))
#
# will create an object named $(OUTPUTDIR)/c.o with the symbols _binary_c_start,
# _binary_c_end, and _binary_c_size.
#
# Arguments:
# $(1): Path to the file to convert
##############################################################################
LD_TARGET_EMULATION_FLAG =
LD_TARGET_EMULATION_FLAG_Linux_x86 = elf_i386
LD_TARGET_EMULATION_FLAG_Linux_x86_64 = elf_x86_64
LD_TARGET_EMULATION_FLAG_Linux_aarch64 = aarch64elf
LD_TARGET_EMULATION_FLAG_Linux_ppc64le = elf64lppc
LD_TARGET_EMULATION_FLAG_SunOS_x86 = elf_i386_sol2
LD_TARGET_EMULATION_FLAG_SunOS_x86_64 = elf_x86_64_sol2
LD_TARGET_EMULATION_FLAG_FreeBSD_x86 = elf_i386_fbsd
LD_TARGET_EMULATION_FLAG_FreeBSD_x86_64 = elf_x86_64_fbsd
# Different linkers (GNU ld versus ld.lld versus ld.gold) expect different
# target architecture values for '-m'. Empirically, only ld.lld appears to
# actually need it, so only add the option when linking with ld.lld. Example
# `ld.lld -v` output: "LLD 15.0.7 (compatible with GNU linkers)".
LD_IS_LLD := $(if $(filter LLD,$(shell $(LD) -v)),1)
ifdef LD_TARGET_EMULATION_FLAG_$(TARGET_OS)_$(TARGET_ARCH)
LD_TARGET_EMULATION_FLAG = $(if $(LD_IS_LLD), -m $(LD_TARGET_EMULATION_FLAG_$(TARGET_OS)_$(TARGET_ARCH)))
endif
define READ_ONLY_OBJECT_FROM_FILE_RULE
$$(OUTPUTDIR)/$$(notdir $(1)).o: $(1)
$(at_if_quiet)$$(MKDIR) $$(OUTPUTDIR)
$(at_if_quiet)cd $$(dir $(1)); \
$$(call quiet_cmd_no_at,LD) -r -z noexecstack --format=binary \
$$(LD_TARGET_EMULATION_FLAG) \
$$(notdir $(1)) -o $$(OUTPUTDIR_ABSOLUTE)/$$(notdir $$@)
$$(call quiet_cmd,OBJCOPY) \
--rename-section .data=.rodata,contents,alloc,load,data,readonly \
$$@
endef
define BINARY_DATA_HEADER_RULE
$$(OUTPUTDIR)/$(notdir $(1)).h:
$(at_if_quiet)$(MKDIR) $$(OUTPUTDIR)
$(at_if_quiet){ \
$$(PRINTF) "extern const char _binary_$(subst -,_,$(subst .,_,$(notdir $(1))))_start[];\n"; \
$$(PRINTF) "extern const char _binary_$(subst -,_,$(subst .,_,$(notdir $(1))))_end[];\n"; \
} > $$@
endef
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