Blame view
scripts/Makefile.host
4.63 KB
b24413180
|
1 |
# SPDX-License-Identifier: GPL-2.0 |
cf8dfd15e
|
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 |
# LEX # --------------------------------------------------------------------------- quiet_cmd_flex = LEX $@ cmd_flex = $(LEX) -o$@ -L $< $(obj)/%.lex.c: $(src)/%.l FORCE $(call if_changed,flex) # YACC # --------------------------------------------------------------------------- quiet_cmd_bison = YACC $(basename $@).[ch] cmd_bison = $(YACC) -o $(basename $@).c --defines=$(basename $@).h -t -l $< $(obj)/%.tab.c $(obj)/%.tab.h: $(src)/%.y FORCE $(call if_changed,bison) |
1da177e4c
|
18 19 20 21 22 |
# ========================================================================== # Building binaries on the host system # Binaries are used during the compilation of the kernel, for example # to preprocess a data file. # |
3156fd052
|
23 |
# Both C and C++ are supported, but preferred language is C for such utilities. |
1da177e4c
|
24 |
# |
cd238effe
|
25 |
# Sample syntax (see Documentation/kbuild/makefiles.rst for reference) |
5f2fb52fa
|
26 |
# hostprogs := bin2hex |
1da177e4c
|
27 28 |
# Will compile bin2hex.c and create an executable named bin2hex # |
5f2fb52fa
|
29 |
# hostprogs := lxdialog |
1da177e4c
|
30 31 32 33 |
# lxdialog-objs := checklist.o lxdialog.o # Will compile lxdialog.c and checklist.c, and then link the executable # lxdialog, based on checklist.o and lxdialog.o # |
5f2fb52fa
|
34 |
# hostprogs := qconf |
1da177e4c
|
35 36 37 38 |
# qconf-cxxobjs := qconf.o # qconf-objs := menu.o # Will compile qconf as a C++ program, and menu as a C program. # They are linked as C++ code to the executable qconf |
1da177e4c
|
39 40 |
# C code # Executables compiled from a single .c file |
85569d19d
|
41 |
host-csingle := $(foreach m,$(hostprogs), \ |
edb950c17
|
42 |
$(if $($(m)-objs)$($(m)-cxxobjs),,$(m))) |
1da177e4c
|
43 44 |
# C executables linked based on several .o files |
85569d19d
|
45 |
host-cmulti := $(foreach m,$(hostprogs),\ |
1da177e4c
|
46 47 48 |
$(if $($(m)-cxxobjs),,$(if $($(m)-objs),$(m)))) # Object (.o) files compiled from .c files |
85569d19d
|
49 |
host-cobjs := $(sort $(foreach m,$(hostprogs),$($(m)-objs))) |
1da177e4c
|
50 51 |
# C++ code |
d8d9efe22
|
52 |
# C++ executables compiled from at least one .cc file |
1da177e4c
|
53 |
# and zero or more .c files |
85569d19d
|
54 |
host-cxxmulti := $(foreach m,$(hostprogs),$(if $($(m)-cxxobjs),$(m))) |
1da177e4c
|
55 56 57 |
# C++ Object (.o) files compiled from .cc files host-cxxobjs := $(sort $(foreach m,$(host-cxxmulti),$($(m)-cxxobjs))) |
1da177e4c
|
58 59 60 61 62 |
host-csingle := $(addprefix $(obj)/,$(host-csingle)) host-cmulti := $(addprefix $(obj)/,$(host-cmulti)) host-cobjs := $(addprefix $(obj)/,$(host-cobjs)) host-cxxmulti := $(addprefix $(obj)/,$(host-cxxmulti)) host-cxxobjs := $(addprefix $(obj)/,$(host-cxxobjs)) |
1da177e4c
|
63 64 65 |
##### # Handle options to gcc. Support building with separate output directory |
96f14fe73
|
66 |
_hostc_flags = $(KBUILD_HOSTCFLAGS) $(HOST_EXTRACFLAGS) \ |
54b8ae66a
|
67 |
$(HOSTCFLAGS_$(target-stem).o) |
10844aebf
|
68 |
_hostcxx_flags = $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \ |
54b8ae66a
|
69 |
$(HOSTCXXFLAGS_$(target-stem).o) |
1da177e4c
|
70 |
|
cdd750bfb
|
71 |
# $(objtree)/$(obj) for including generated headers from checkin source files |
58156ba44
|
72 |
ifeq ($(KBUILD_EXTMOD),) |
051f278e9
|
73 |
ifdef building_out_of_srctree |
cdd750bfb
|
74 75 |
_hostc_flags += -I $(objtree)/$(obj) _hostcxx_flags += -I $(objtree)/$(obj) |
1da177e4c
|
76 |
endif |
58156ba44
|
77 |
endif |
1da177e4c
|
78 |
|
30a772977
|
79 80 |
hostc_flags = -Wp,-MMD,$(depfile) $(_hostc_flags) hostcxx_flags = -Wp,-MMD,$(depfile) $(_hostcxx_flags) |
1da177e4c
|
81 82 83 84 85 86 87 |
##### # Compile programs on the host # Create executable from a single .c file # host-csingle -> Executable quiet_cmd_host-csingle = HOSTCC $@ |
b90a36800
|
88 |
cmd_host-csingle = $(HOSTCC) $(hostc_flags) $(KBUILD_HOSTLDFLAGS) -o $@ $< \ |
54b8ae66a
|
89 |
$(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem)) |
767e581d7
|
90 |
$(host-csingle): $(obj)/%: $(src)/%.c FORCE |
1da177e4c
|
91 92 93 94 95 |
$(call if_changed_dep,host-csingle) # Link an executable based on list of .o files, all plain c # host-cmulti -> executable quiet_cmd_host-cmulti = HOSTLD $@ |
b90a36800
|
96 |
cmd_host-cmulti = $(HOSTCC) $(KBUILD_HOSTLDFLAGS) -o $@ \ |
54b8ae66a
|
97 98 |
$(addprefix $(obj)/, $($(target-stem)-objs)) \ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem)) |
97e3226e6
|
99 |
$(host-cmulti): FORCE |
1da177e4c
|
100 |
$(call if_changed,host-cmulti) |
97e3226e6
|
101 |
$(call multi_depend, $(host-cmulti), , -objs) |
1da177e4c
|
102 103 104 105 106 |
# Create .o file from a single .c file # host-cobjs -> .o quiet_cmd_host-cobjs = HOSTCC $@ cmd_host-cobjs = $(HOSTCC) $(hostc_flags) -c -o $@ $< |
767e581d7
|
107 |
$(host-cobjs): $(obj)/%.o: $(src)/%.c FORCE |
1da177e4c
|
108 109 110 111 112 |
$(call if_changed_dep,host-cobjs) # Link an executable based on list of .o files, a mixture of .c and .cc # host-cxxmulti -> executable quiet_cmd_host-cxxmulti = HOSTLD $@ |
b90a36800
|
113 |
cmd_host-cxxmulti = $(HOSTCXX) $(KBUILD_HOSTLDFLAGS) -o $@ \ |
1da177e4c
|
114 |
$(foreach o,objs cxxobjs,\ |
54b8ae66a
|
115 116 |
$(addprefix $(obj)/, $($(target-stem)-$(o)))) \ $(KBUILD_HOSTLDLIBS) $(HOSTLDLIBS_$(target-stem)) |
97e3226e6
|
117 |
$(host-cxxmulti): FORCE |
1da177e4c
|
118 |
$(call if_changed,host-cxxmulti) |
97e3226e6
|
119 |
$(call multi_depend, $(host-cxxmulti), , -objs -cxxobjs) |
1da177e4c
|
120 121 122 123 |
# Create .o file from a single .cc (C++) file quiet_cmd_host-cxxobjs = HOSTCXX $@ cmd_host-cxxobjs = $(HOSTCXX) $(hostcxx_flags) -c -o $@ $< |
767e581d7
|
124 |
$(host-cxxobjs): $(obj)/%.o: $(src)/%.cc FORCE |
1da177e4c
|
125 |
$(call if_changed_dep,host-cxxobjs) |
42640b134
|
126 127 |
targets += $(host-csingle) $(host-cmulti) $(host-cobjs) \ $(host-cxxmulti) $(host-cxxobjs) |