xref: /linux/tools/lib/symbol/Makefile (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: GPL-2.0
2include ../../scripts/Makefile.include
3include ../../scripts/utilities.mak		# QUIET_CLEAN
4
5ifeq ($(srctree),)
6srctree := $(patsubst %/,%,$(dir $(CURDIR)))
7srctree := $(patsubst %/,%,$(dir $(srctree)))
8srctree := $(patsubst %/,%,$(dir $(srctree)))
9#$(info Determined 'srctree' to be $(srctree))
10endif
11
12CC ?= $(CROSS_COMPILE)gcc
13AR ?= $(CROSS_COMPILE)ar
14LD ?= $(CROSS_COMPILE)ld
15
16MAKEFLAGS += --no-print-directory
17
18INSTALL = install
19
20
21# Use DESTDIR for installing into a different root directory.
22# This is useful for building a package. The program will be
23# installed in this directory as if it was the root directory.
24# Then the build tool can move it later.
25DESTDIR ?=
26DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
27
28LIBFILE = $(OUTPUT)libsymbol.a
29
30CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
31CFLAGS += -ggdb3 -Wall -Wextra -std=gnu11 -U_FORTIFY_SOURCE -fPIC
32
33ifeq ($(DEBUG),0)
34  CFLAGS += -O3
35endif
36
37ifeq ($(DEBUG),0)
38  CFLAGS += -D_FORTIFY_SOURCE
39endif
40
41# Treat warnings as errors unless directed not to
42ifneq ($(WERROR),0)
43  CFLAGS += -Werror
44endif
45
46CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
47
48CFLAGS += -I$(srctree)/tools/lib
49CFLAGS += -I$(srctree)/tools/include
50
51RM = rm -f
52
53SYMBOL_IN := $(OUTPUT)libsymbol-in.o
54
55ifeq ($(LP64), 1)
56  libdir_relative = lib64
57else
58  libdir_relative = lib
59endif
60
61prefix ?=
62libdir = $(prefix)/$(libdir_relative)
63
64# Shell quotes
65libdir_SQ = $(subst ','\'',$(libdir))
66
67all:
68
69export srctree OUTPUT CC LD CFLAGS V
70include $(srctree)/tools/build/Makefile.include
71include $(srctree)/tools/scripts/Makefile.include
72
73all: fixdep $(LIBFILE)
74
75$(SYMBOL_IN): FORCE
76	@$(MAKE) $(build)=libsymbol
77
78$(LIBFILE): $(SYMBOL_IN)
79	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(SYMBOL_IN)
80
81define do_install_mkdir
82	if [ ! -d '$(DESTDIR_SQ)$1' ]; then             \
83		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$1'; \
84	fi
85endef
86
87define do_install
88	if [ ! -d '$2' ]; then             \
89		$(INSTALL) -d -m 755 '$2'; \
90	fi;                                \
91	$(INSTALL) $1 $(if $3,-m $3,) '$2'
92endef
93
94install_lib: $(LIBFILE)
95	$(call QUIET_INSTALL, $(LIBFILE)) \
96		$(call do_install_mkdir,$(libdir_SQ)); \
97		cp -fpR $(LIBFILE) $(DESTDIR)$(libdir_SQ)
98
99HDRS := kallsyms.h
100INSTALL_HDRS_PFX := $(DESTDIR)$(prefix)/include/symbol
101INSTALL_HDRS := $(addprefix $(INSTALL_HDRS_PFX)/, $(HDRS))
102
103$(INSTALL_HDRS): $(INSTALL_HDRS_PFX)/%.h: %.h
104	$(call QUIET_INSTALL, $@) \
105		$(call do_install,$<,$(INSTALL_HDRS_PFX)/,644)
106
107install_headers: $(INSTALL_HDRS)
108	$(call QUIET_INSTALL, libsymbol_headers)
109
110install: install_lib install_headers
111
112clean:
113	$(call QUIET_CLEAN, libsymbol) $(RM) $(LIBFILE); \
114	find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
115
116FORCE:
117
118.PHONY: clean FORCE
119