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 += $(libdeps) 20link-objs := $(filter-out $(out-dir)/core/arch/arm/kernel/link_dummies.o, \ 21 $(objs)) 22ldargs-tee.elf := $(link-ldflags) $(link-objs) $(link-out-dir)/version.o \ 23 $(link-ldadd) $(libgcccore) 24 25link-script-cppflags := \ 26 $(filter-out $(CPPFLAGS_REMOVE) $(cppflags-remove), \ 27 $(nostdinccore) $(CPPFLAGS) \ 28 $(addprefix -I,$(incdirscore) $(link-out-dir)) \ 29 $(cppflagscore)) 30 31ldargs-all_objs := -T $(link-script-dummy) --no-check-sections \ 32 $(link-objs) $(link-ldadd) $(libgcccore) 33cleanfiles += $(link-out-dir)/all_objs.o 34$(link-out-dir)/all_objs.o: $(objs) $(libdeps) $(MAKEFILE_LIST) 35 @$(cmd-echo-silent) ' LD $@' 36 $(q)$(LDcore) $(ldargs-all_objs) -o $@ 37 38cleanfiles += $(link-out-dir)/unpaged_entries.txt 39$(link-out-dir)/unpaged_entries.txt: $(link-out-dir)/all_objs.o 40 @$(cmd-echo-silent) ' GEN $@' 41 $(q)$(NMcore) $< | \ 42 $(AWK) '/ ____keep_pager/ { printf "-u%s ", $$3 }' > $@ 43 44unpaged-ldargs = -T $(link-script-dummy) --no-check-sections --gc-sections 45unpaged-ldadd := $(objs) $(link-ldadd) $(libgcccore) 46cleanfiles += $(link-out-dir)/unpaged.o 47$(link-out-dir)/unpaged.o: $(link-out-dir)/unpaged_entries.txt 48 @$(cmd-echo-silent) ' LD $@' 49 $(q)$(LDcore) $(unpaged-ldargs) \ 50 `cat $(link-out-dir)/unpaged_entries.txt` \ 51 $(unpaged-ldadd) -o $@ 52 53cleanfiles += $(link-out-dir)/text_unpaged.ld.S 54$(link-out-dir)/text_unpaged.ld.S: $(link-out-dir)/unpaged.o 55 @$(cmd-echo-silent) ' GEN $@' 56 $(q)$(READELFcore) -S -W $< | \ 57 ./scripts/gen_ld_sects.py .text. > $@ 58 59cleanfiles += $(link-out-dir)/rodata_unpaged.ld.S 60$(link-out-dir)/rodata_unpaged.ld.S: $(link-out-dir)/unpaged.o 61 @$(cmd-echo-silent) ' GEN $@' 62 $(q)$(READELFcore) -S -W $< | \ 63 ./scripts/gen_ld_sects.py .rodata. > $@ 64 65 66cleanfiles += $(link-out-dir)/init_entries.txt 67$(link-out-dir)/init_entries.txt: $(link-out-dir)/all_objs.o 68 @$(cmd-echo-silent) ' GEN $@' 69 $(q)$(NMcore) $< | \ 70 $(AWK) '/ ____keep_init/ { printf "-u%s ", $$3 }' > $@ 71 72init-ldargs := -T $(link-script-dummy) --no-check-sections --gc-sections 73init-ldadd := $(objs) $(link-out-dir)/version.o $(link-ldadd) $(libgcccore) 74cleanfiles += $(link-out-dir)/init.o 75$(link-out-dir)/init.o: $(link-out-dir)/init_entries.txt 76 $(call gen-version-o) 77 @$(cmd-echo-silent) ' LD $@' 78 $(q)$(LDcore) $(init-ldargs) \ 79 `cat $(link-out-dir)/init_entries.txt` \ 80 $(init-ldadd) -o $@ 81 82cleanfiles += $(link-out-dir)/text_init.ld.S 83$(link-out-dir)/text_init.ld.S: $(link-out-dir)/init.o 84 @$(cmd-echo-silent) ' GEN $@' 85 $(q)$(READELFcore) -S -W $< | \ 86 ./scripts/gen_ld_sects.py .text. > $@ 87 88cleanfiles += $(link-out-dir)/rodata_init.ld.S 89$(link-out-dir)/rodata_init.ld.S: $(link-out-dir)/init.o 90 @$(cmd-echo-silent) ' GEN $@' 91 $(q)$(READELFcore) -S -W $< | ./scripts/gen_ld_sects.py .rodata. > $@ 92 93-include $(link-script-dep) 94 95link-script-extra-deps += $(link-out-dir)/text_unpaged.ld.S 96link-script-extra-deps += $(link-out-dir)/rodata_unpaged.ld.S 97link-script-extra-deps += $(link-out-dir)/text_init.ld.S 98link-script-extra-deps += $(link-out-dir)/rodata_init.ld.S 99link-script-extra-deps += $(conf-file) 100cleanfiles += $(link-script-pp) $(link-script-dep) 101$(link-script-pp): $(link-script) $(link-script-extra-deps) 102 @$(cmd-echo-silent) ' CPP $@' 103 @mkdir -p $(dir $@) 104 $(q)$(CPPcore) -P -MT $@ -MD -MF $(link-script-dep) \ 105 $(link-script-cppflags) $< -o $@ 106 107define update-buildcount 108 @$(cmd-echo-silent) ' UPD $(1)' 109 $(q)if [ ! -f $(1) ]; then \ 110 mkdir -p $(dir $(1)); \ 111 echo 1 >$(1); \ 112 else \ 113 expr 0`cat $(1)` + 1 >$(1); \ 114 fi 115endef 116 117# filter-out to workaround objdump warning 118version-o-cflags = $(filter-out -g3,$(core-platform-cflags) \ 119 $(platform-cflags) $(cflagscore)) 120# SOURCE_DATE_EPOCH defined for reproducible builds 121ifneq ($(SOURCE_DATE_EPOCH),) 122DATE_STR = `date -u -d @$(SOURCE_DATE_EPOCH)` 123else 124DATE_STR = `date -u` 125endif 126BUILD_COUNT_STR = `cat $(link-out-dir)/.buildcount` 127CORE_CC_VERSION = `$(CCcore) -v 2>&1 | grep "version " | sed 's/ *$$//'` 128define gen-version-o 129 $(call update-buildcount,$(link-out-dir)/.buildcount) 130 @$(cmd-echo-silent) ' GEN $(link-out-dir)/version.o' 131 $(q)echo -e "const char core_v_str[] =" \ 132 "\"$(TEE_IMPL_VERSION) \"" \ 133 "\"($(CORE_CC_VERSION)) \"" \ 134 "\"#$(BUILD_COUNT_STR) \"" \ 135 "\"$(DATE_STR) \"" \ 136 "\"$(CFG_KERN_LINKER_ARCH)\";\n" \ 137 | $(CCcore) $(version-o-cflags) \ 138 -xc - -c -o $(link-out-dir)/version.o 139endef 140$(link-out-dir)/version.o: 141 $(call gen-version-o) 142 143-include $(link-out-dir)/.tee.elf.cmd 144define check-link-objs 145$(if $(strip $(filter-out $(link-objs), $(old-link-objs)) 146 $(filter-out $(old-link-objs), $(link-objs))), FORCE_LINK := FORCE) 147endef 148$(eval $(call check-link-objs)) 149 150all: $(link-out-dir)/tee.elf 151cleanfiles += $(link-out-dir)/tee.elf $(link-out-dir)/tee.map 152cleanfiles += $(link-out-dir)/version.o 153cleanfiles += $(link-out-dir)/.buildcount 154cleanfiles += $(link-out-dir)/.tee.elf.cmd 155$(link-out-dir)/tee.elf: $(link-objs) $(libdeps) $(link-script-pp) $(FORCE_LINK) 156 @echo "old-link-objs := $(link-objs)" >$(link-out-dir)/.tee.elf.cmd 157 @$(cmd-echo-silent) ' LD $@' 158 $(q)$(LDcore) $(ldargs-tee.elf) -o $@ 159 160all: $(link-out-dir)/tee.dmp 161cleanfiles += $(link-out-dir)/tee.dmp 162$(link-out-dir)/tee.dmp: $(link-out-dir)/tee.elf 163 @$(cmd-echo-silent) ' OBJDUMP $@' 164 $(q)$(OBJDUMPcore) -l -x -d $< > $@ 165 166pageable_sections := .*_pageable 167init_sections := .*_init 168cleanfiles += $(link-out-dir)/tee-pager.bin 169$(link-out-dir)/tee-pager.bin: $(link-out-dir)/tee.elf \ 170 $(link-out-dir)/tee-data_end.txt 171 @$(cmd-echo-silent) ' OBJCOPY $@' 172 $(q)$(OBJCOPYcore) -O binary \ 173 --remove-section="$(pageable_sections)" \ 174 --remove-section="$(init_sections)" \ 175 --pad-to `cat $(link-out-dir)/tee-data_end.txt` \ 176 $< $@ 177 178cleanfiles += $(link-out-dir)/tee-pageable.bin 179ifeq ($(CFG_WITH_PAGER),y) 180$(link-out-dir)/tee-pageable.bin: $(link-out-dir)/tee.elf 181 @$(cmd-echo-silent) ' OBJCOPY $@' 182 $(q)$(OBJCOPYcore) -O binary \ 183 --only-section="$(init_sections)" \ 184 --only-section="$(pageable_sections)" \ 185 $< $@ 186else 187$(link-out-dir)/tee-pageable.bin: 188 @$(cmd-echo-silent) ' TOUCH $@' 189 $(q)touch $@ 190endif 191 192cleanfiles += $(link-out-dir)/tee-data_end.txt 193$(link-out-dir)/tee-data_end.txt: $(link-out-dir)/tee.elf 194 @$(cmd-echo-silent) ' GEN $@' 195 @echo -n 0x > $@ 196 $(q)$(NMcore) $< | grep __data_end | sed 's/ .*$$//' >> $@ 197 198cleanfiles += $(link-out-dir)/tee-init_size.txt 199$(link-out-dir)/tee-init_size.txt: $(link-out-dir)/tee.elf 200 @$(cmd-echo-silent) ' GEN $@' 201 @echo -n 0x > $@ 202 $(q)$(NMcore) $< | grep __init_size | sed 's/ .*$$//' >> $@ 203 204cleanfiles += $(link-out-dir)/tee-init_load_addr.txt 205$(link-out-dir)/tee-init_load_addr.txt: $(link-out-dir)/tee.elf 206 @$(cmd-echo-silent) ' GEN $@' 207 @echo -n 0x > $@ 208 $(q)$(NMcore) $< | grep ' _start' | sed 's/ .*$$//' >> $@ 209 210cleanfiles += $(link-out-dir)/tee-init_mem_usage.txt 211$(link-out-dir)/tee-init_mem_usage.txt: $(link-out-dir)/tee.elf 212 @$(cmd-echo-silent) ' GEN $@' 213 @echo -n 0x > $@ 214 $(q)$(NMcore) $< | grep ' __init_mem_usage' | sed 's/ .*$$//' >> $@ 215 216gen_hash_bin_deps := $(link-out-dir)/tee-pager.bin \ 217 $(link-out-dir)/tee-pageable.bin \ 218 $(link-out-dir)/tee-init_size.txt \ 219 $(link-out-dir)/tee-init_load_addr.txt \ 220 $(link-out-dir)/tee-init_mem_usage.txt \ 221 ./scripts/gen_hashed_bin.py 222 223define gen_hash_bin_cmd 224 @$(cmd-echo-silent) ' GEN $@' 225 $(q)load_addr=`cat $(link-out-dir)/tee-init_load_addr.txt` && \ 226 ./scripts/gen_hashed_bin.py \ 227 --arch $(if $(filter y,$(CFG_ARM64_core)),arm64,arm32) \ 228 --init_size `cat $(link-out-dir)/tee-init_size.txt` \ 229 --init_load_addr_hi $$(($$load_addr >> 32 & 0xffffffff)) \ 230 --init_load_addr_lo $$(($$load_addr & 0xffffffff)) \ 231 --init_mem_usage `cat $(link-out-dir)/tee-init_mem_usage.txt` \ 232 --tee_pager_bin $(link-out-dir)/tee-pager.bin \ 233 --tee_pageable_bin $(link-out-dir)/tee-pageable.bin 234endef 235 236all: $(link-out-dir)/tee.bin 237cleanfiles += $(link-out-dir)/tee.bin 238$(link-out-dir)/tee.bin: $(gen_hash_bin_deps) 239 $(gen_hash_bin_cmd) --out $@ 240 241all: $(link-out-dir)/tee-header_v2.bin 242cleanfiles += $(link-out-dir)/tee-header_v2.bin 243$(link-out-dir)/tee-header_v2.bin: $(gen_hash_bin_deps) 244 $(gen_hash_bin_cmd) --out_header_v2 $@ 245 246all: $(link-out-dir)/tee-pager_v2.bin 247cleanfiles += $(link-out-dir)/tee-pager_v2.bin 248$(link-out-dir)/tee-pager_v2.bin: $(gen_hash_bin_deps) 249 $(gen_hash_bin_cmd) --out_pager_v2 $@ 250 251all: $(link-out-dir)/tee-pageable_v2.bin 252cleanfiles += $(link-out-dir)/tee-pageable_v2.bin 253$(link-out-dir)/tee-pageable_v2.bin: $(gen_hash_bin_deps) 254 $(gen_hash_bin_cmd) --out_pageable_v2 $@ 255 256all: $(link-out-dir)/tee.symb_sizes 257cleanfiles += $(link-out-dir)/tee.symb_sizes 258$(link-out-dir)/tee.symb_sizes: $(link-out-dir)/tee.elf 259 @$(cmd-echo-silent) ' GEN $@' 260 $(q)$(NMcore) --print-size --reverse-sort --size-sort $< > $@ 261 262cleanfiles += $(link-out-dir)/tee.mem_usage 263ifneq ($(filter mem_usage,$(MAKECMDGOALS)),) 264mem_usage: $(link-out-dir)/tee.mem_usage 265 266$(link-out-dir)/tee.mem_usage: $(link-out-dir)/tee.elf 267 @$(cmd-echo-silent) ' GEN $@' 268 $(q)./scripts/mem_usage.py $< > $@ 269endif 270