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