summaryrefslogtreecommitdiff
path: root/mk/internal/rte.compile-pre.mk
blob: 0cf3791b4dfae840135043ebd92d8e640af4d85b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2010-2014 Intel Corporation

#
# Common to rte.lib.mk, rte.app.mk, rte.obj.mk
#

SRCS-all := $(SRCS-y) $(SRCS-n) $(SRCS-)

# convert source to obj file
src2obj = $(strip $(patsubst %.c,%.o,\
	$(patsubst %.S,%_s.o,$(1))))

# add a dot in front of the file name
dotfile = $(strip $(foreach f,$(1),\
	$(join $(dir $f),.$(notdir $f))))

# convert source/obj files into dot-dep filename (does not
# include .S files)
src2dep = $(strip $(call dotfile,$(patsubst %.c,%.o.d, \
		$(patsubst %.S,,$(1)))))
obj2dep = $(strip $(call dotfile,$(patsubst %.o,%.o.d,$(1))))

# convert source/obj files into dot-cmd filename
src2cmd = $(strip $(call dotfile,$(patsubst %.c,%.o.cmd, \
		$(patsubst %.S,%_s.o.cmd,$(1)))))
obj2cmd = $(strip $(call dotfile,$(patsubst %.o,%.o.cmd,$(1))))

OBJS-y := $(call src2obj,$(SRCS-y))
OBJS-n := $(call src2obj,$(SRCS-n))
OBJS-  := $(call src2obj,$(SRCS-))
OBJS-all := $(filter-out $(SRCS-all),$(OBJS-y) $(OBJS-n) $(OBJS-))

DEPS-y := $(call src2dep,$(SRCS-y))
DEPS-n := $(call src2dep,$(SRCS-n))
DEPS-  := $(call src2dep,$(SRCS-))
DEPS-all := $(DEPS-y) $(DEPS-n) $(DEPS-)
DEPSTMP-all := $(DEPS-all:%.d=%.d.tmp)

CMDS-y := $(call src2cmd,$(SRCS-y))
CMDS-n := $(call src2cmd,$(SRCS-n))
CMDS-  := $(call src2cmd,$(SRCS-))
CMDS-all := $(CMDS-y) $(CMDS-n) $(CMDS-)

-include $(DEPS-y) $(CMDS-y)

# command to compile a .c file to generate an object
ifeq ($(USE_HOST),1)
C_TO_O = $(HOSTCC) -Wp,-MD,$(call obj2dep,$(@)).tmp $(HOST_CPPFLAGS) $(HOST_CFLAGS) \
	$(CFLAGS_$(@)) $(HOST_EXTRA_CPPFLAGS) $(HOST_EXTRA_CFLAGS) -o $@ -c $<
C_TO_O_STR = $(subst ','\'',$(C_TO_O)) #'# fix syntax highlight
C_TO_O_DISP = $(if $(V),"$(C_TO_O_STR)","  HOSTCC $(@)")
else
C_TO_O = $(CC) -Wp,-MD,$(call obj2dep,$(@)).tmp $(CPPFLAGS) $(CFLAGS) \
	$(CFLAGS_$(@)) $(EXTRA_CPPFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<
C_TO_O_STR = $(subst ','\'',$(C_TO_O)) #'# fix syntax highlight
C_TO_O_DISP = $(if $(V),"$(C_TO_O_STR)","  CC $(@)")
endif
EXPERIMENTAL_CHECK = $(RTE_SDK)/buildtools/check-experimental-syms.sh
CHECK_EXPERIMENTAL = $(EXPERIMENTAL_CHECK) $(SRCDIR)/$(EXPORT_MAP) $@

PMDINFO_GEN = $(RTE_SDK_BIN)/app/dpdk-pmdinfogen $@ $@.pmd.c
PMDINFO_CC = $(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@.pmd.o $@.pmd.c
PMDINFO_LD = $(CROSS)ld $(LDFLAGS) -r -o $@.o $@.pmd.o $@
PMDINFO_TO_O = if grep -q 'RTE_PMD_REGISTER_.*(.*)' $<; then \
	echo "$(if $V,$(PMDINFO_GEN),  PMDINFO $@.pmd.c)" && \
	$(PMDINFO_GEN) && \
	echo "$(if $V,$(PMDINFO_CC),  CC $@.pmd.o)" && \
	$(PMDINFO_CC) && \
	echo "$(if $V,$(PMDINFO_LD),  LD $@)" && \
	$(PMDINFO_LD) && \
	mv -f $@.o $@; fi
C_TO_O_CMD = 'cmd_$@ = $(C_TO_O_STR)'
C_TO_O_DO = @set -e; \
	echo $(C_TO_O_DISP); \
	$(C_TO_O) && \
	$(PMDINFO_TO_O) && \
	$(CHECK_EXPERIMENTAL) && \
	echo $(C_TO_O_CMD) > $(call obj2cmd,$(@)) && \
	sed 's,'$@':,dep_'$@' =,' $(call obj2dep,$(@)).tmp > $(call obj2dep,$(@)) && \
	rm -f $(call obj2dep,$(@)).tmp

# return an empty string if string are equal
compare = $(strip $(subst $(1),,$(2)) $(subst $(2),,$(1)))

# return a non-empty string if the dst file does not exist
file_missing = $(call compare,$(wildcard $@),$@)

# return a non-empty string if cmdline changed
cmdline_changed = $(call compare,$(strip $(cmd_$@)),$(strip $(1)))

# return a non-empty string if a dependency file does not exist
depfile_missing = $(call compare,$(wildcard $(dep_$@)),$(dep_$@))

# return an empty string if no prereq is newer than target
#     - $^ -> names of all the prerequisites
#     - $(wildcard $^) -> every existing prereq
#     - $(filter-out $(wildcard $^),$^) -> every prereq that don't
#       exist (filter-out removes existing ones from the list)
#     - $? -> names of all the prerequisites newer than target
depfile_newer = $(strip $(filter-out FORCE,$? \
	$(filter-out $(wildcard $^),$^)))

# return 1 if parameter is a non-empty string, else 0
boolean = $(if $1,1,0)

#
# Compile .c file if needed
# Note: dep_$$@ is from the .d file and DEP_$$@ can be specified by
# user (by default it is empty)
#
.SECONDEXPANSION:
%.o: %.c $$(wildcard $$(dep_$$@)) $$(DEP_$$(@)) FORCE
	@[ -d $(dir $@) ] || mkdir -p $(dir $@)
	$(if $(D),\
		@echo -n "$< -> $@ " ; \
		echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
		echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(C_TO_O))) " ; \
		echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
		echo "depfile_newer=$(call boolean,$(depfile_newer))")
	$(if $(or \
		$(file_missing),\
		$(call cmdline_changed,$(C_TO_O)),\
		$(depfile_missing),\
		$(depfile_newer)),\
		$(C_TO_O_DO))

# command to assemble a .S file to generate an object
ifeq ($(USE_HOST),1)
S_TO_O = $(CPP) $(HOST_CPPFLAGS) $($(@)_CPPFLAGS) $(HOST_EXTRA_CPPFLAGS) $< $(@).tmp && \
	$(HOSTAS) $(HOST_ASFLAGS) $($(@)_ASFLAGS) $(HOST_EXTRA_ASFLAGS) -o $@ $(@).tmp
S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight
S_TO_O_DISP =  $(if $(V),"$(S_TO_O_STR)","  HOSTAS $(@)")
else
S_TO_O = $(CPP) $(CPPFLAGS) $($(@)_CPPFLAGS) $(EXTRA_CPPFLAGS) $< -o $(@).tmp && \
	$(AS) $(ASFLAGS) $($(@)_ASFLAGS) $(EXTRA_ASFLAGS) -o $@ $(@).tmp
S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight
S_TO_O_DISP =  $(if $(V),"$(S_TO_O_STR)","  AS $(@)")
endif

S_TO_O_CMD = "cmd_$@ = $(S_TO_O_STR)"
S_TO_O_DO = @set -e; \
	echo $(S_TO_O_DISP); \
	$(S_TO_O) && \
	echo $(S_TO_O_CMD) > $(call obj2cmd,$(@))

#
# Compile .S file if needed
# Note: DEP_$$@ can be specified by user (by default it is empty)
#
%_s.o: %.S $$(DEP_$$@) FORCE
	@[ ! -d $(dir $@) ] || mkdir -p $(dir $@)
	$(if $(D),\
		@echo -n "$< -> $@ " ; \
		echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
		echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(S_TO_O_STR))) " ; \
		echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
		echo "depfile_newer=$(call boolean,$(depfile_newer)) ")
	$(if $(or \
		$(file_missing),\
		$(call cmdline_changed,$(S_TO_O_STR)),\
		$(depfile_missing),\
		$(depfile_newer)),\
		$(S_TO_O_DO))