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 := -DASM=1 \ 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) -Wp,-P,-MT,$@,-MD,$(link-script-dep) \ 105 $(link-script-cppflags) $< > $@ 106 107define update-buildcount 108 @$(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)) 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)./scripts/mem_usage.py $< > $@ 256endif 257