1link-out-dir = $(out-dir)/core 2 3link-script-dummy = core/arch/arm/kernel/link_dummy.ld 4link-script = $(if $(wildcard $(platform-dir)/kern.ld.S), \ 5 $(platform-dir)/kern.ld.S, \ 6 core/arch/arm/kernel/kern.ld.S) 7link-script-pp = $(link-out-dir)/kern.ld 8link-script-dep = $(link-out-dir)/.kern.ld.d 9 10AWK = awk 11 12link-ldflags = $(LDFLAGS) 13link-ldflags += -T $(link-script-pp) -Map=$(link-out-dir)/tee.map 14link-ldflags += --sort-section=alignment 15link-ldflags += --fatal-warnings 16link-ldflags += --gc-sections 17 18link-ldadd = $(LDADD) 19link-ldadd += $(addprefix -L,$(libdirs)) 20link-ldadd += $(addprefix -l,$(libnames)) 21link-objs := $(filter-out $(out-dir)/core/arch/arm/kernel/link_dummies.o, \ 22 $(objs)) 23ldargs-tee.elf := $(link-ldflags) $(link-objs) $(link-out-dir)/version.o \ 24 $(link-ldadd) $(libgcccore) 25 26link-script-cppflags := -DASM=1 \ 27 $(filter-out $(CPPFLAGS_REMOVE) $(cppflags-remove), \ 28 $(nostdinccore) $(CPPFLAGS) \ 29 $(addprefix -I,$(incdirscore) $(link-out-dir)) \ 30 $(cppflagscore)) 31 32ldargs-all_objs := -T $(link-script-dummy) --no-check-sections \ 33 $(link-objs) $(link-ldadd) $(libgcccore) 34cleanfiles += $(link-out-dir)/all_objs.o 35$(link-out-dir)/all_objs.o: $(objs) $(libdeps) $(MAKEFILE_LIST) 36 @$(cmd-echo-silent) ' LD $@' 37 $(q)$(LDcore) $(ldargs-all_objs) -o $@ 38 39cleanfiles += $(link-out-dir)/unpaged_entries.txt 40$(link-out-dir)/unpaged_entries.txt: $(link-out-dir)/all_objs.o 41 @$(cmd-echo-silent) ' GEN $@' 42 $(q)$(NMcore) $< | \ 43 $(AWK) '/ ____keep_pager/ { printf "-u%s ", $$3 }' > $@ 44 45unpaged-ldargs = -T $(link-script-dummy) --no-check-sections --gc-sections 46unpaged-ldadd := $(objs) $(link-ldadd) $(libgcccore) 47cleanfiles += $(link-out-dir)/unpaged.o 48$(link-out-dir)/unpaged.o: $(link-out-dir)/unpaged_entries.txt 49 @$(cmd-echo-silent) ' LD $@' 50 $(q)$(LDcore) $(unpaged-ldargs) \ 51 `cat $(link-out-dir)/unpaged_entries.txt` \ 52 $(unpaged-ldadd) -o $@ 53 54cleanfiles += $(link-out-dir)/text_unpaged.ld.S 55$(link-out-dir)/text_unpaged.ld.S: $(link-out-dir)/unpaged.o 56 @$(cmd-echo-silent) ' GEN $@' 57 $(q)$(READELFcore) -S -W $< | \ 58 ./scripts/gen_ld_sects.py .text. > $@ 59 60cleanfiles += $(link-out-dir)/rodata_unpaged.ld.S 61$(link-out-dir)/rodata_unpaged.ld.S: $(link-out-dir)/unpaged.o 62 @$(cmd-echo-silent) ' GEN $@' 63 $(q)$(READELFcore) -S -W $< | \ 64 ./scripts/gen_ld_sects.py .rodata. > $@ 65 66 67cleanfiles += $(link-out-dir)/init_entries.txt 68$(link-out-dir)/init_entries.txt: $(link-out-dir)/all_objs.o 69 @$(cmd-echo-silent) ' GEN $@' 70 $(q)$(NMcore) $< | \ 71 $(AWK) '/ ____keep_init/ { printf "-u%s ", $$3 }' > $@ 72 73init-ldargs := -T $(link-script-dummy) --no-check-sections --gc-sections 74init-ldadd := $(objs) $(link-out-dir)/version.o $(link-ldadd) $(libgcccore) 75cleanfiles += $(link-out-dir)/init.o 76$(link-out-dir)/init.o: $(link-out-dir)/init_entries.txt 77 $(call gen-version-o) 78 @$(cmd-echo-silent) ' LD $@' 79 $(q)$(LDcore) $(init-ldargs) \ 80 `cat $(link-out-dir)/init_entries.txt` \ 81 $(init-ldadd) -o $@ 82 83cleanfiles += $(link-out-dir)/text_init.ld.S 84$(link-out-dir)/text_init.ld.S: $(link-out-dir)/init.o 85 @$(cmd-echo-silent) ' GEN $@' 86 $(q)$(READELFcore) -S -W $< | \ 87 ./scripts/gen_ld_sects.py .text. > $@ 88 89cleanfiles += $(link-out-dir)/rodata_init.ld.S 90$(link-out-dir)/rodata_init.ld.S: $(link-out-dir)/init.o 91 @$(cmd-echo-silent) ' GEN $@' 92 $(q)$(READELFcore) -S -W $< | ./scripts/gen_ld_sects.py .rodata. > $@ 93 94-include $(link-script-dep) 95 96link-script-extra-deps += $(link-out-dir)/text_unpaged.ld.S 97link-script-extra-deps += $(link-out-dir)/rodata_unpaged.ld.S 98link-script-extra-deps += $(link-out-dir)/text_init.ld.S 99link-script-extra-deps += $(link-out-dir)/rodata_init.ld.S 100link-script-extra-deps += $(conf-file) 101cleanfiles += $(link-script-pp) $(link-script-dep) 102$(link-script-pp): $(link-script) $(link-script-extra-deps) 103 @$(cmd-echo-silent) ' CPP $@' 104 @mkdir -p $(dir $@) 105 $(q)$(CPPcore) -Wp,-P,-MT,$@,-MD,$(link-script-dep) \ 106 $(link-script-cppflags) $< > $@ 107 108define update-buildcount 109 @$(cmd-echo-silent) ' UPD $(1)' 110 $(q)if [ ! -f $(1) ]; then \ 111 mkdir -p $(dir $(1)); \ 112 echo 1 >$(1); \ 113 else \ 114 expr 0`cat $(1)` + 1 >$(1); \ 115 fi 116endef 117 118version-o-cflags = $(filter-out -g3,$(core-platform-cflags) \ 119 $(platform-cflags)) # Workaround objdump warning 120DATE_STR = `date -u` 121BUILD_COUNT_STR = `cat $(link-out-dir)/.buildcount` 122define gen-version-o 123 $(call update-buildcount,$(link-out-dir)/.buildcount) 124 @$(cmd-echo-silent) ' GEN $(link-out-dir)/version.o' 125 $(q)echo -e "const char core_v_str[] =" \ 126 "\"$(TEE_IMPL_VERSION) \"" \ 127 "\"#$(BUILD_COUNT_STR) \"" \ 128 "\"$(DATE_STR) \"" \ 129 "\"$(CFG_KERN_LINKER_ARCH)\";\n" \ 130 | $(CCcore) $(version-o-cflags) \ 131 -xc - -c -o $(link-out-dir)/version.o 132endef 133$(link-out-dir)/version.o: 134 $(call gen-version-o) 135 136-include $(link-out-dir)/.tee.elf.cmd 137define check-link-objs 138$(if $(strip $(filter-out $(link-objs), $(old-link-objs)) 139 $(filter-out $(old-link-objs), $(link-objs))), FORCE_LINK := FORCE) 140endef 141$(eval $(call check-link-objs)) 142 143all: $(link-out-dir)/tee.elf 144cleanfiles += $(link-out-dir)/tee.elf $(link-out-dir)/tee.map 145cleanfiles += $(link-out-dir)/version.o 146cleanfiles += $(link-out-dir)/.buildcount 147cleanfiles += $(link-out-dir)/.tee.elf.cmd 148$(link-out-dir)/tee.elf: $(link-objs) $(libdeps) $(link-script-pp) $(FORCE_LINK) 149 @echo "old-link-objs := $(link-objs)" >$(link-out-dir)/.tee.elf.cmd 150 @$(cmd-echo-silent) ' LD $@' 151 $(q)$(LDcore) $(ldargs-tee.elf) -o $@ 152 153all: $(link-out-dir)/tee.dmp 154cleanfiles += $(link-out-dir)/tee.dmp 155$(link-out-dir)/tee.dmp: $(link-out-dir)/tee.elf 156 @$(cmd-echo-silent) ' OBJDUMP $@' 157 $(q)$(OBJDUMPcore) -l -x -d $< > $@ 158 159pageable_sections := .*_pageable 160init_sections := .*_init 161cleanfiles += $(link-out-dir)/tee-pager.bin 162$(link-out-dir)/tee-pager.bin: $(link-out-dir)/tee.elf \ 163 $(link-out-dir)/tee-data_end.txt 164 @$(cmd-echo-silent) ' OBJCOPY $@' 165 $(q)$(OBJCOPYcore) -O binary \ 166 --remove-section="$(pageable_sections)" \ 167 --remove-section="$(init_sections)" \ 168 --pad-to `cat $(link-out-dir)/tee-data_end.txt` \ 169 $< $@ 170 171cleanfiles += $(link-out-dir)/tee-pageable.bin 172$(link-out-dir)/tee-pageable.bin: $(link-out-dir)/tee.elf 173 @$(cmd-echo-silent) ' OBJCOPY $@' 174 $(q)$(OBJCOPYcore) -O binary \ 175 --only-section="$(init_sections)" \ 176 --only-section="$(pageable_sections)" \ 177 $< $@ 178 179cleanfiles += $(link-out-dir)/tee-data_end.txt 180$(link-out-dir)/tee-data_end.txt: $(link-out-dir)/tee.elf 181 @$(cmd-echo-silent) ' GEN $@' 182 @echo -n 0x > $@ 183 $(q)$(NMcore) $< | grep __data_end | sed 's/ .*$$//' >> $@ 184 185cleanfiles += $(link-out-dir)/tee-init_size.txt 186$(link-out-dir)/tee-init_size.txt: $(link-out-dir)/tee.elf 187 @$(cmd-echo-silent) ' GEN $@' 188 @echo -n 0x > $@ 189 $(q)$(NMcore) $< | grep __init_size | sed 's/ .*$$//' >> $@ 190 191cleanfiles += $(link-out-dir)/tee-init_load_addr.txt 192$(link-out-dir)/tee-init_load_addr.txt: $(link-out-dir)/tee.elf 193 @$(cmd-echo-silent) ' GEN $@' 194 @echo -n 0x > $@ 195 $(q)$(NMcore) $< | grep ' _start' | sed 's/ .*$$//' >> $@ 196 197cleanfiles += $(link-out-dir)/tee-init_mem_usage.txt 198$(link-out-dir)/tee-init_mem_usage.txt: $(link-out-dir)/tee.elf 199 @$(cmd-echo-silent) ' GEN $@' 200 @echo -n 0x > $@ 201 $(q)$(NMcore) $< | grep ' __init_mem_usage' | sed 's/ .*$$//' >> $@ 202 203gen_hash_bin_deps := $(link-out-dir)/tee-pager.bin \ 204 $(link-out-dir)/tee-pageable.bin \ 205 $(link-out-dir)/tee-init_size.txt \ 206 $(link-out-dir)/tee-init_load_addr.txt \ 207 $(link-out-dir)/tee-init_mem_usage.txt \ 208 ./scripts/gen_hashed_bin.py 209 210define gen_hash_bin_cmd 211 @$(cmd-echo-silent) ' GEN $@' 212 $(q)load_addr=`cat $(link-out-dir)/tee-init_load_addr.txt` && \ 213 ./scripts/gen_hashed_bin.py \ 214 --arch $(if $(filter y,$(CFG_ARM64_core)),arm64,arm32) \ 215 --init_size `cat $(link-out-dir)/tee-init_size.txt` \ 216 --init_load_addr_hi $$(($$load_addr >> 32 & 0xffffffff)) \ 217 --init_load_addr_lo $$(($$load_addr & 0xffffffff)) \ 218 --init_mem_usage `cat $(link-out-dir)/tee-init_mem_usage.txt` \ 219 --tee_pager_bin $(link-out-dir)/tee-pager.bin \ 220 --tee_pageable_bin $(link-out-dir)/tee-pageable.bin 221endef 222 223all: $(link-out-dir)/tee.bin 224cleanfiles += $(link-out-dir)/tee.bin 225$(link-out-dir)/tee.bin: $(gen_hash_bin_deps) 226 $(gen_hash_bin_cmd) --out $@ 227 228all: $(link-out-dir)/tee-header_v2.bin 229cleanfiles += $(link-out-dir)/tee-header_v2.bin 230$(link-out-dir)/tee-header_v2.bin: $(gen_hash_bin_deps) 231 $(gen_hash_bin_cmd) --out_header_v2 $@ 232 233all: $(link-out-dir)/tee-pager_v2.bin 234cleanfiles += $(link-out-dir)/tee-pager_v2.bin 235$(link-out-dir)/tee-pager_v2.bin: $(gen_hash_bin_deps) 236 $(gen_hash_bin_cmd) --out_pager_v2 $@ 237 238all: $(link-out-dir)/tee-pageable_v2.bin 239cleanfiles += $(link-out-dir)/tee-pageable_v2.bin 240$(link-out-dir)/tee-pageable_v2.bin: $(gen_hash_bin_deps) 241 $(gen_hash_bin_cmd) --out_pageable_v2 $@ 242 243all: $(link-out-dir)/tee.symb_sizes 244cleanfiles += $(link-out-dir)/tee.symb_sizes 245$(link-out-dir)/tee.symb_sizes: $(link-out-dir)/tee.elf 246 @$(cmd-echo-silent) ' GEN $@' 247 $(q)$(NMcore) --print-size --reverse-sort --size-sort $< > $@ 248 249cleanfiles += $(link-out-dir)/tee.mem_usage 250ifneq ($(filter mem_usage,$(MAKECMDGOALS)),) 251mem_usage: $(link-out-dir)/tee.mem_usage 252 253$(link-out-dir)/tee.mem_usage: $(link-out-dir)/tee.elf 254 @$(cmd-echo-silent) ' GEN $@' 255 $(q)$(READELFcore) -a -W $< | ${AWK} -f ./scripts/mem_usage.awk > $@ 256endif 257