ceph/src/spdk/dpdk/mk/internal/rte.compile-pre.mk

   1 # SPDX-License-Identifier: BSD-3-Clause
   2 # Copyright(c) 2010-2014 Intel Corporation
   3
   4 #
   5 # Common to rte.lib.mk, rte.app.mk, rte.obj.mk
   6 #
   7
   8 SRCS-all := $(SRCS-y) $(SRCS-n) $(SRCS-)
   9
  10 # convert source to obj file
  11 src2obj = $(strip $(patsubst %.c,%.o,\
  12         $(patsubst %.S,%_s.o,$(1))))
  13
  14 # add a dot in front of the file name
  15 dotfile = $(strip $(foreach f,$(1),\
  16         $(join $(dir $f),.$(notdir $f))))
  17
  18 # convert source/obj files into dot-dep filename (does not
  19 # include .S files)
  20 src2dep = $(strip $(call dotfile,$(patsubst %.c,%.o.d, \
  21                 $(patsubst %.S,,$(1)))))
  22 obj2dep = $(strip $(call dotfile,$(patsubst %.o,%.o.d,$(1))))
  23
  24 # convert source/obj files into dot-cmd filename
  25 src2cmd = $(strip $(call dotfile,$(patsubst %.c,%.o.cmd, \
  26                 $(patsubst %.S,%_s.o.cmd,$(1)))))
  27 obj2cmd = $(strip $(call dotfile,$(patsubst %.o,%.o.cmd,$(1))))
  28
  29 OBJS-y := $(call src2obj,$(SRCS-y))
  30 OBJS-n := $(call src2obj,$(SRCS-n))
  31 OBJS-  := $(call src2obj,$(SRCS-))
  32 OBJS-all := $(filter-out $(SRCS-all),$(OBJS-y) $(OBJS-n) $(OBJS-))
  33
  34 DEPS-y := $(call src2dep,$(SRCS-y))
  35 DEPS-n := $(call src2dep,$(SRCS-n))
  36 DEPS-  := $(call src2dep,$(SRCS-))
  37 DEPS-all := $(DEPS-y) $(DEPS-n) $(DEPS-)
  38 DEPSTMP-all := $(DEPS-all:%.d=%.d.tmp)
  39
  40 CMDS-y := $(call src2cmd,$(SRCS-y))
  41 CMDS-n := $(call src2cmd,$(SRCS-n))
  42 CMDS-  := $(call src2cmd,$(SRCS-))
  43 CMDS-all := $(CMDS-y) $(CMDS-n) $(CMDS-)
  44
  45 -include $(DEPS-y) $(CMDS-y)
  46
  47 # command to compile a .c file to generate an object
  48 ifeq ($(USE_HOST),1)
  49 C_TO_O = $(HOSTCC) -Wp,-MD,$(call obj2dep,$(@)).tmp $(HOST_CPPFLAGS) $(HOST_CFLAGS) \
  50         $(CFLAGS_$(@)) $(HOST_EXTRA_CPPFLAGS) $(HOST_EXTRA_CFLAGS) -o $@ -c $<
  51 C_TO_O_STR = $(subst ','\'',$(C_TO_O)) #'# fix syntax highlight
  52 C_TO_O_DISP = $(if $(V),"$(C_TO_O_STR)","  HOSTCC $(@)")
  53 else
  54 C_TO_O = $(CC) -Wp,-MD,$(call obj2dep,$(@)).tmp $(CPPFLAGS) $(CFLAGS) \
  55         $(CFLAGS_$(@)) $(EXTRA_CPPFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<
  56 C_TO_O_STR = $(subst ','\'',$(C_TO_O)) #'# fix syntax highlight
  57 C_TO_O_DISP = $(if $(V),"$(C_TO_O_STR)","  CC $(@)")
  58 endif
  59 CHECK_SYMBOLS_SCRIPT = $(RTE_SDK)/buildtools/check-symbols.sh
  60 CHECK_SYMBOLS = $(CHECK_SYMBOLS_SCRIPT) $(SRCDIR)/$(EXPORT_MAP) $@
  61
  62 PMDINFO_GEN = $(RTE_SDK_BIN)/app/dpdk-pmdinfogen $@ $@.pmd.c
  63 PMDINFO_CC = $(CC) $(CPPFLAGS) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@.pmd.o $@.pmd.c
  64 PMDINFO_LD = $(CROSS)ld -r $(filter-out -export-dynamic,$(LDFLAGS)) -o $@.o $@.pmd.o $@
  65 PMDINFO_TO_O = if grep -q 'RTE_PMD_REGISTER_.*(.*)' $<; then \
  66         echo "$(if $V,$(PMDINFO_GEN),  PMDINFO $@.pmd.c)" && \
  67         $(PMDINFO_GEN) && \
  68         echo "$(if $V,$(PMDINFO_CC),  CC $@.pmd.o)" && \
  69         $(PMDINFO_CC) && \
  70         echo "$(if $V,$(PMDINFO_LD),  LD $@)" && \
  71         $(PMDINFO_LD) && \
  72         mv -f $@.o $@; fi
  73 C_TO_O_CMD = 'cmd_$@ = $(C_TO_O_STR)'
  74 C_TO_O_DO = @set -e; \
  75         echo $(C_TO_O_DISP); \
  76         $(C_TO_O) && \
  77         $(PMDINFO_TO_O) && \
  78         $(CHECK_SYMBOLS) && \
  79         echo $(C_TO_O_CMD) > $(call obj2cmd,$(@)) && \
  80         sed 's,'$@':,dep_'$@' =,' $(call obj2dep,$(@)).tmp > $(call obj2dep,$(@)) && \
  81         rm -f $(call obj2dep,$(@)).tmp
  82
  83 # return an empty string if string are equal
  84 compare = $(strip $(subst $(1),,$(2)) $(subst $(2),,$(1)))
  85
  86 # return a non-empty string if the dst file does not exist
  87 file_missing = $(call compare,$(wildcard $@),$@)
  88
  89 # return a non-empty string if cmdline changed
  90 cmdline_changed = $(call compare,$(strip $(cmd_$@)),$(strip $(1)))
  91
  92 # return a non-empty string if a dependency file does not exist
  93 depfile_missing = $(call compare,$(wildcard $(dep_$@)),$(dep_$@))
  94
  95 # return an empty string if no prereq is newer than target
  96 #     - $^ -> names of all the prerequisites
  97 #     - $(wildcard $^) -> every existing prereq
  98 #     - $(filter-out $(wildcard $^),$^) -> every prereq that don't
  99 #       exist (filter-out removes existing ones from the list)
 100 #     - $? -> names of all the prerequisites newer than target
 101 depfile_newer = $(strip $(filter-out FORCE,$? \
 102         $(filter-out $(wildcard $^),$^)))
 103
 104 # return 1 if parameter is a non-empty string, else 0
 105 boolean = $(if $1,1,0)
 106
 107 #
 108 # Compile .c file if needed
 109 # Note: dep_$$@ is from the .d file and DEP_$$@ can be specified by
 110 # user (by default it is empty)
 111 #
 112 .SECONDEXPANSION:
 113 %.o: %.c $$(wildcard $$(dep_$$@)) $$(DEP_$$(@)) FORCE
 114         @[ -d $(dir $@) ] || mkdir -p $(dir $@)
 115         $(if $(D),\
 116                 @echo -n "$< -> $@ " ; \
 117                 echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
 118                 echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(C_TO_O))) " ; \
 119                 echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
 120                 echo "depfile_newer=$(call boolean,$(depfile_newer))")
 121         $(if $(or \
 122                 $(file_missing),\
 123                 $(call cmdline_changed,$(C_TO_O)),\
 124                 $(depfile_missing),\
 125                 $(depfile_newer)),\
 126                 $(C_TO_O_DO))
 127
 128 # command to assemble a .S file to generate an object
 129 ifeq ($(USE_HOST),1)
 130 S_TO_O = $(CPP) $(HOST_CPPFLAGS) $($(@)_CPPFLAGS) $(HOST_EXTRA_CPPFLAGS) $< $(@).tmp && \
 131         $(HOSTAS) $(HOST_ASFLAGS) $($(@)_ASFLAGS) $(HOST_EXTRA_ASFLAGS) -o $@ $(@).tmp
 132 S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight
 133 S_TO_O_DISP =  $(if $(V),"$(S_TO_O_STR)","  HOSTAS $(@)")
 134 else
 135 S_TO_O = $(CPP) $(CPPFLAGS) $($(@)_CPPFLAGS) $(EXTRA_CPPFLAGS) $< -o $(@).tmp && \
 136         $(AS) $(ASFLAGS) $($(@)_ASFLAGS) $(EXTRA_ASFLAGS) -o $@ $(@).tmp
 137 S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight
 138 S_TO_O_DISP =  $(if $(V),"$(S_TO_O_STR)","  AS $(@)")
 139 endif
 140
 141 S_TO_O_CMD = "cmd_$@ = $(S_TO_O_STR)"
 142 S_TO_O_DO = @set -e; \
 143         echo $(S_TO_O_DISP); \
 144         $(S_TO_O) && \
 145         echo $(S_TO_O_CMD) > $(call obj2cmd,$(@))
 146
 147 #
 148 # Compile .S file if needed
 149 # Note: DEP_$$@ can be specified by user (by default it is empty)
 150 #
 151 %_s.o: %.S $$(DEP_$$@) FORCE
 152         @[ ! -d $(dir $@) ] || mkdir -p $(dir $@)
 153         $(if $(D),\
 154                 @echo -n "$< -> $@ " ; \
 155                 echo -n "file_missing=$(call boolean,$(file_missing)) " ; \
 156                 echo -n "cmdline_changed=$(call boolean,$(call cmdline_changed,$(S_TO_O_STR))) " ; \
 157                 echo -n "depfile_missing=$(call boolean,$(depfile_missing)) " ; \
 158                 echo "depfile_newer=$(call boolean,$(depfile_newer)) ")
 159         $(if $(or \
 160                 $(file_missing),\
 161                 $(call cmdline_changed,$(S_TO_O_STR)),\
 162                 $(depfile_missing),\
 163                 $(depfile_newer)),\
 164                 $(S_TO_O_DO))