1 # ################################################################
2 # Copyright (c) Meta Platforms, Inc. and affiliates.
5 # This source code is licensed under both the BSD-style license (found in the
6 # LICENSE file in the root directory of this source tree) and the GPLv2 (found
7 # in the COPYING file in the root directory of this source tree).
8 # You may select, at your option, one of the above-listed licenses.
9 # ################################################################
11 ##################################################################
13 ##################################################################
18 # ZSTD_LIB_MINIFY is a helper variable that
19 # configures a bunch of other variables to space-optimized defaults.
23 ifneq ($(ZSTD_LIB_MINIFY), 0)
24 ZSTD_LEGACY_SUPPORT ?= 0
26 ZSTD_LEGACY_SUPPORT ?= 5
28 ZSTD_LEGACY_MULTITHREADED_API ?= 0
30 # Build size optimizations
31 ifneq ($(ZSTD_LIB_MINIFY), 0)
32 HUF_FORCE_DECOMPRESS_X1 ?= 1
33 HUF_FORCE_DECOMPRESS_X2 ?= 0
34 ZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT ?= 1
35 ZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG ?= 0
37 ZSTD_STRIP_ERROR_STRINGS ?= 1
39 HUF_FORCE_DECOMPRESS_X1 ?= 0
40 HUF_FORCE_DECOMPRESS_X2 ?= 0
41 ZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT ?= 0
42 ZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG ?= 0
44 ZSTD_STRIP_ERROR_STRINGS ?= 0
50 ##################################################################
52 ##################################################################
56 # Make 4.3 doesn't support '\#' anymore (https://lwn.net/Articles/810071/)
59 # define silent mode as default (verbose mode with V=1 or VERBOSE=1)
60 $(V)$(VERBOSE).SILENT:
62 # When cross-compiling from linux to windows,
63 # one might need to specify TARGET_SYSTEM as "Windows."
64 # Building from Fedora fails without it.
65 # (but Ubuntu and Debian don't need to set anything)
66 TARGET_SYSTEM ?= $(OS)
69 LIBVER_SRC := $(LIBZSTD)/zstd.h
70 LIBVER_MAJOR_SCRIPT:=`sed -n '/define ZSTD_VERSION_MAJOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < $(LIBVER_SRC)`
71 LIBVER_MINOR_SCRIPT:=`sed -n '/define ZSTD_VERSION_MINOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < $(LIBVER_SRC)`
72 LIBVER_PATCH_SCRIPT:=`sed -n '/define ZSTD_VERSION_RELEASE/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p' < $(LIBVER_SRC)`
73 LIBVER_SCRIPT:= $(LIBVER_MAJOR_SCRIPT).$(LIBVER_MINOR_SCRIPT).$(LIBVER_PATCH_SCRIPT)
74 LIBVER_MAJOR := $(shell echo $(LIBVER_MAJOR_SCRIPT))
75 LIBVER_MINOR := $(shell echo $(LIBVER_MINOR_SCRIPT))
76 LIBVER_PATCH := $(shell echo $(LIBVER_PATCH_SCRIPT))
77 LIBVER := $(shell echo $(LIBVER_SCRIPT))
78 CCVER := $(shell $(CC) --version)
79 ZSTD_VERSION?= $(LIBVER)
81 ifneq ($(ZSTD_LIB_MINIFY), 0)
82 HAVE_CC_OZ ?= $(shell echo "" | $(CC) -Oz -x c -c - -o /dev/null 2> /dev/null && echo 1 || echo 0)
83 ifneq ($(HAVE_CC_OZ), 0)
84 # Some compilers (clang) support an even more space-optimized setting.
89 CFLAGS += -fno-stack-protector -fomit-frame-pointer -fno-ident \
90 -DDYNAMIC_BMI2=0 -DNDEBUG
96 CPPFLAGS += -DXXH_NAMESPACE=ZSTD_ -DDEBUGLEVEL=$(DEBUGLEVEL)
97 ifeq ($(TARGET_SYSTEM),Windows_NT) # MinGW assumed
98 CPPFLAGS += -D__USE_MINGW_ANSI_STDIO # compatibility with %zu formatting
100 DEBUGFLAGS= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
101 -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
102 -Wstrict-prototypes -Wundef -Wpointer-arith \
103 -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
104 -Wredundant-decls -Wmissing-prototypes -Wc++-compat
105 CFLAGS += $(DEBUGFLAGS) $(MOREFLAGS)
106 ASFLAGS += $(DEBUGFLAGS) $(MOREFLAGS) $(CFLAGS)
107 LDFLAGS += $(MOREFLAGS)
108 FLAGS = $(CPPFLAGS) $(CFLAGS) $(ASFLAGS) $(LDFLAGS)
110 ifndef ALREADY_APPENDED_NOEXECSTACK
111 export ALREADY_APPENDED_NOEXECSTACK := 1
112 ifeq ($(shell echo "int main(int argc, char* argv[]) { (void)argc; (void)argv; return 0; }" | $(CC) $(FLAGS) -z noexecstack -x c -Werror - -o $(VOID) 2>$(VOID) && echo 1 || echo 0),1)
113 LDFLAGS += -z noexecstack
115 ifeq ($(shell echo | $(CC) $(FLAGS) -Wa,--noexecstack -x assembler -Werror -c - -o $(VOID) 2>$(VOID) && echo 1 || echo 0),1)
116 CFLAGS += -Wa,--noexecstack
117 # CFLAGS are also added to ASFLAGS
118 else ifeq ($(shell echo | $(CC) $(FLAGS) -Qunused-arguments -Wa,--noexecstack -x assembler -Werror -c - -o $(VOID) 2>$(VOID) && echo 1 || echo 0),1)
119 # See e.g.: https://github.com/android/ndk/issues/171
120 CFLAGS += -Qunused-arguments -Wa,--noexecstack
121 # CFLAGS are also added to ASFLAGS
125 ifeq ($(shell echo "int main(int argc, char* argv[]) { (void)argc; (void)argv; return 0; }" | $(CC) $(FLAGS) -z cet-report=error -x c -Werror - -o $(VOID) 2>$(VOID) && echo 1 || echo 0),1)
126 LDFLAGS += -z cet-report=error
129 HAVE_COLORNEVER = $(shell echo a | grep --color=never a > /dev/null 2> /dev/null && echo 1 || echo 0)
131 ifeq ($(HAVE_COLORNEVER), 1)
132 GREP_OPTIONS += --color=never
134 GREP = grep $(GREP_OPTIONS)
136 ZSTD_COMMON_FILES := $(sort $(wildcard $(LIBZSTD)/common/*.c))
137 ZSTD_COMPRESS_FILES := $(sort $(wildcard $(LIBZSTD)/compress/*.c))
138 ZSTD_DECOMPRESS_FILES := $(sort $(wildcard $(LIBZSTD)/decompress/*.c))
139 ZSTD_DICTBUILDER_FILES := $(sort $(wildcard $(LIBZSTD)/dictBuilder/*.c))
140 ZSTD_DEPRECATED_FILES := $(sort $(wildcard $(LIBZSTD)/deprecated/*.c))
143 ZSTD_DECOMPRESS_AMD64_ASM_FILES := $(sort $(wildcard $(LIBZSTD)/decompress/*_amd64.S))
145 ifneq ($(ZSTD_NO_ASM), 0)
146 CPPFLAGS += -DZSTD_DISABLE_ASM
148 # Unconditionally add the ASM files they are disabled by
149 # macros in the .S file.
150 ZSTD_DECOMPRESS_FILES += $(ZSTD_DECOMPRESS_AMD64_ASM_FILES)
153 ifneq ($(HUF_FORCE_DECOMPRESS_X1), 0)
154 CFLAGS += -DHUF_FORCE_DECOMPRESS_X1
157 ifneq ($(HUF_FORCE_DECOMPRESS_X2), 0)
158 CFLAGS += -DHUF_FORCE_DECOMPRESS_X2
161 ifneq ($(ZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT), 0)
162 CFLAGS += -DZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT
165 ifneq ($(ZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG), 0)
166 CFLAGS += -DZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG
169 ifneq ($(ZSTD_NO_INLINE), 0)
170 CFLAGS += -DZSTD_NO_INLINE
173 ifneq ($(ZSTD_STRIP_ERROR_STRINGS), 0)
174 CFLAGS += -DZSTD_STRIP_ERROR_STRINGS
177 ifneq ($(ZSTD_LEGACY_MULTITHREADED_API), 0)
178 CFLAGS += -DZSTD_LEGACY_MULTITHREADED_API
181 ifneq ($(ZSTD_LEGACY_SUPPORT), 0)
182 ifeq ($(shell test $(ZSTD_LEGACY_SUPPORT) -lt 8; echo $$?), 0)
183 ZSTD_LEGACY_FILES += $(shell ls $(LIBZSTD)/legacy/*.c | $(GREP) 'v0[$(ZSTD_LEGACY_SUPPORT)-7]')
186 CPPFLAGS += -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT)
188 UNAME := $(shell uname)
191 ifeq ($(UNAME), Darwin)
192 ifeq ($(shell md5 < /dev/null > /dev/null; echo $$?), 0)
195 else ifeq ($(UNAME), FreeBSD)
197 else ifeq ($(UNAME), NetBSD)
199 else ifeq ($(UNAME), OpenBSD)
204 HASH_DIR = conf_$(shell echo $(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) $(ZSTD_FILES) | $(HASH) | cut -f 1 -d " " )
205 HAVE_HASH :=$(shell echo 1 | $(HASH) > /dev/null && echo 1 || echo 0)
206 ifeq ($(HAVE_HASH),0)
207 $(info warning : could not find HASH ($(HASH)), needed to differentiate builds using different flags)
208 BUILD_DIR := obj/generic_noconf
212 ZSTD_SUBDIR := $(LIBZSTD)/common $(LIBZSTD)/compress $(LIBZSTD)/decompress $(LIBZSTD)/dictBuilder $(LIBZSTD)/legacy $(LIBZSTD)/deprecated
213 vpath %.c $(ZSTD_SUBDIR)
214 vpath %.S $(ZSTD_SUBDIR)