kernel/Makefile

   1 #
   2 # Copyright (c) 2005 Martin Decky
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions
   7 # are met:
   8 #
   9 # - Redistributions of source code must retain the above copyright
  10 #   notice, this list of conditions and the following disclaimer.
  11 # - Redistributions in binary form must reproduce the above copyright
  12 #   notice, this list of conditions and the following disclaimer in the
  13 #   documentation and/or other materials provided with the distribution.
  14 # - The name of the author may not be used to endorse or promote products
  15 #   derived from this software without specific prior written permission.
  16 #
  17 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27 #
  28
  29 ## Configuration
  30 #
  31
  32 ROOT_PATH = ..
  33
  34 VERSION_DEF = $(ROOT_PATH)/version
  35
  36 COMMON_MAKEFILE = $(ROOT_PATH)/Makefile.common
  37 COMMON_HEADER = $(ROOT_PATH)/common.h
  38 COMMON_HEADER_ARCH = arch/$(KARCH)/include/arch/common.h
  39
  40 CONFIG_MAKEFILE = $(ROOT_PATH)/Makefile.config
  41 CONFIG_HEADER = $(ROOT_PATH)/config.h
  42
  43 -include $(VERSION_DEF)
  44 -include $(COMMON_MAKEFILE)
  45 -include $(CONFIG_MAKEFILE)
  46
  47 ## Common names
  48 #
  49
  50 AUTOCHECK = $(realpath $(ROOT_PATH)/tools/autocheck.awk)
  51 KERNEL = kernel.elf
  52 MAP = kernel.map
  53 JOB = kernel.job
  54 MAP_PREV = $(MAP).prev
  55 DISASM = kernel.disasm
  56 DUMP = kernel.dump
  57 REAL_MAP = generic/src/debug/real_map
  58
  59 GENMAP = tools/genmap.py
  60
  61 LINK = arch/$(KARCH)/_link.ld
  62 EMPTY_MAP = generic/src/debug/empty_map.o
  63 SIZEOK_MAP = generic/src/debug/sizeok_map.o
  64
  65 ifeq ($(PRECHECK),y)
  66         JOBFILE = $(ROOT_PATH)/tools/jobfile.py
  67         # NOTE: You must not change the order of arguments.
  68         CC_JOB = $(JOBFILE) $(JOB) $(CC) $< -o $@
  69 else
  70         CC_JOB = $(CC) $< -o $@
  71 endif
  72
  73 .PHONY: all clean autogen_clean depend
  74 .DELETE_ON_ERROR:
  75
  76 all: $(VERSION_DEF) $(COMMON_MAKEFILE) $(COMMON_HEADER) $(CONFIG_MAKEFILE) $(CONFIG_HEADER) $(KERNEL) $(DISASM)
  77
  78 clean: autogen_clean
  79         rm -f $(KERNEL) $(MAP) $(JOB) $(MAP_PREV) $(DISASM) $(DUMP) $(REAL_MAP).* arch/*/_link.ld arch/*/include/arch/common.h
  80         find generic/src/ arch/*/src/ genarch/src/ test/ -name '*.o' -follow -exec rm '{}' \;
  81         find generic/src/ arch/*/src/ genarch/src/ test/ -name '*.d' -follow -exec rm '{}' \;
  82
  83 ## Common compiler flags
  84 #
  85
  86 INCLUDES = generic/include genarch/include arch/$(KARCH)/include ../abi/arch/$(KARCH)/include ../abi/include
  87 INCLUDES_FLAGS = $(addprefix -I,$(INCLUDES))
  88
  89 DEFS = -DKERNEL -DRELEASE=$(RELEASE) "-DCOPYRIGHT=$(COPYRIGHT)" "-DNAME=$(NAME)" -D__$(BITS)_BITS__ -D__$(ENDIANESS)__
  90
  91 COMMON_CFLAGS = $(INCLUDES_FLAGS) -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \
  92         -ffreestanding -nostdlib \
  93         -fexec-charset=UTF-8 -finput-charset=UTF-8 -fno-common \
  94         -fdebug-prefix-map=$(realpath $(ROOT_PATH))=.
  95
  96 GCC_CFLAGS = -std=gnu11 -Wall -Wextra -Wno-unused-parameter \
  97         -Wmissing-prototypes -Werror-implicit-function-declaration \
  98         -Wwrite-strings -pipe -Wno-cast-function-type
  99
 100 CLANG_CFLAGS = -std=gnu11 -Wall -Wextra -Wno-unused-parameter \
 101         -Wno-missing-field-initializers -Wno-unused-command-line-argument \
 102         -Wmissing-prototypes -Werror-implicit-function-declaration \
 103         -Wwrite-strings -pipe -fno-stack-protector -fno-PIC
 104
 105 ifeq ($(CONFIG_DEBUG),y)
 106         COMMON_CFLAGS += -Werror
 107 endif
 108
 109 ifeq ($(CONFIG_UBSAN_KERNEL),y)
 110         COMMON_CFLAGS += -fsanitize=undefined
 111 endif
 112
 113 ifeq ($(CONFIG_LTO),y)
 114         COMMON_CFLAGS += -flto
 115 endif
 116
 117 ifeq ($(CONFIG_LINE_DEBUG),y)
 118         COMMON_CFLAGS += -g
 119 endif
 120
 121 AFLAGS += --fatal-warnings
 122 LDFLAGS += -Wl,-n -T $(LINK) -Wl,-M,--fatal-warnings,--warn-common
 123
 124 ifeq ($(CONFIG_STRIP_BINARIES),y)
 125         LDFLAGS += -s
 126 endif
 127
 128 -include arch/$(KARCH)/Makefile.inc
 129 -include genarch/Makefile.inc
 130
 131 ## The at-sign
 132 #
 133 # The $(ATSIGN) variable holds the ASCII character representing the at-sign
 134 # ('@') used in various $(AS) constructs (e.g. @progbits). On architectures that
 135 # don't use '@' for starting a comment, $(ATSIGN) is merely '@'. However, on
 136 # those that do use it for starting a comment (e.g. arm32), $(ATSIGN) must be
 137 # defined as the percentile-sign ('%') in the architecture-dependent
 138 # Makefile.inc.
 139 #
 140
 141 ATSIGN ?= @
 142
 143 ## Cross-platform assembly to start a symtab.data section
 144 #
 145
 146 SYMTAB_SECTION = .section symtab.data, \"a\", $(ATSIGN)progbits;
 147
 148 ## Compilation options
 149 #
 150
 151 ifeq ($(COMPILER),clang)
 152         CFLAGS = $(COMMON_CFLAGS) $(CLANG_CFLAGS)
 153 else
 154         CFLAGS = $(COMMON_CFLAGS) $(GCC_CFLAGS)
 155 endif
 156
 157 INSTRUMENTATION = -finstrument-functions
 158
 159 ## Generic kernel sources
 160 #
 161
 162 GENERIC_SOURCES = \
 163         generic/src/adt/bitmap.c \
 164         generic/src/adt/btree.c \
 165         generic/src/adt/hash_table.c \
 166         generic/src/adt/list.c \
 167         generic/src/adt/odict.c \
 168         generic/src/console/chardev.c \
 169         generic/src/console/console.c \
 170         generic/src/console/prompt.c \
 171         generic/src/cpu/cpu.c \
 172         generic/src/cpu/cpu_mask.c \
 173         generic/src/ddi/ddi.c \
 174         generic/src/ddi/irq.c \
 175         generic/src/debug/symtab.c \
 176         generic/src/debug/stacktrace.c \
 177         generic/src/debug/panic.c \
 178         generic/src/debug/debug.c \
 179         generic/src/interrupt/interrupt.c \
 180         generic/src/log/log.c \
 181         generic/src/main/main.c \
 182         generic/src/main/kinit.c \
 183         generic/src/main/uinit.c \
 184         generic/src/main/version.c \
 185         generic/src/main/shutdown.c \
 186         generic/src/proc/current.c \
 187         generic/src/proc/program.c \
 188         generic/src/proc/scheduler.c \
 189         generic/src/proc/thread.c \
 190         generic/src/proc/task.c \
 191         generic/src/syscall/syscall.c \
 192         generic/src/syscall/copy.c \
 193         generic/src/mm/km.c \
 194         generic/src/mm/reserve.c \
 195         generic/src/mm/frame.c \
 196         generic/src/mm/page.c \
 197         generic/src/mm/tlb.c \
 198         generic/src/mm/as.c \
 199         generic/src/mm/malloc.c \
 200         generic/src/mm/backend_anon.c \
 201         generic/src/mm/backend_elf.c \
 202         generic/src/mm/backend_phys.c \
 203         generic/src/mm/backend_user.c \
 204         generic/src/mm/slab.c \
 205         generic/src/lib/halt.c \
 206         generic/src/lib/mem.c \
 207         generic/src/lib/memfnc.c \
 208         generic/src/lib/gsort.c \
 209         generic/src/lib/str.c \
 210         generic/src/lib/str_error.c \
 211         generic/src/lib/elf.c \
 212         generic/src/lib/ra.c \
 213         generic/src/lib/rd.c \
 214         generic/src/lib/ubsan.c \
 215         generic/src/printf/printf_core.c \
 216         generic/src/printf/printf.c \
 217         generic/src/printf/snprintf.c \
 218         generic/src/printf/vprintf.c \
 219         generic/src/printf/vsnprintf.c \
 220         generic/src/time/clock.c \
 221         generic/src/time/timeout.c \
 222         generic/src/time/delay.c \
 223         generic/src/preempt/preemption.c \
 224         generic/src/synch/spinlock.c \
 225         generic/src/synch/condvar.c \
 226         generic/src/synch/mutex.c \
 227         generic/src/synch/semaphore.c \
 228         generic/src/synch/smc.c \
 229         generic/src/synch/waitq.c \
 230         generic/src/synch/syswaitq.c \
 231         generic/src/smp/ipi.c \
 232         generic/src/smp/smp.c \
 233         generic/src/ipc/ipc.c \
 234         generic/src/ipc/sysipc.c \
 235         generic/src/ipc/sysipc_ops.c \
 236         generic/src/ipc/ops/conctmeto.c \
 237         generic/src/ipc/ops/concttome.c \
 238         generic/src/ipc/ops/dataread.c \
 239         generic/src/ipc/ops/datawrite.c \
 240         generic/src/ipc/ops/debug.c \
 241         generic/src/ipc/ops/pagein.c \
 242         generic/src/ipc/ops/sharein.c \
 243         generic/src/ipc/ops/shareout.c \
 244         generic/src/ipc/ops/stchngath.c \
 245         generic/src/ipc/ipcrsc.c \
 246         generic/src/ipc/irq.c \
 247         generic/src/ipc/event.c \
 248         generic/src/cap/cap.c \
 249         generic/src/security/perm.c \
 250         generic/src/sysinfo/sysinfo.c \
 251         generic/src/sysinfo/stats.c
 252
 253 ## Kernel console support
 254 #
 255
 256 ifeq ($(CONFIG_KCONSOLE),y)
 257 GENERIC_SOURCES += \
 258         generic/src/console/kconsole.c \
 259         generic/src/console/cmd.c
 260 endif
 261
 262 ## Udebug interface sources
 263 #
 264
 265 ifeq ($(CONFIG_UDEBUG),y)
 266 GENERIC_SOURCES += \
 267         generic/src/ipc/kbox.c \
 268         generic/src/udebug/udebug.c \
 269         generic/src/udebug/udebug_ops.c \
 270         generic/src/udebug/udebug_ipc.c
 271 endif
 272
 273 ## Test sources
 274 #
 275
 276 ifeq ($(CONFIG_TEST),y)
 277         CFLAGS += -Itest/
 278         GENERIC_SOURCES += \
 279                 test/test.c \
 280                 test/atomic/atomic1.c \
 281                 test/btree/btree1.c \
 282                 test/fault/fault1.c \
 283                 test/mm/falloc1.c \
 284                 test/mm/falloc2.c \
 285                 test/mm/mapping1.c \
 286                 test/mm/slab1.c \
 287                 test/mm/slab2.c \
 288                 test/synch/semaphore1.c \
 289                 test/synch/semaphore2.c \
 290                 test/print/print1.c \
 291                 test/print/print2.c \
 292                 test/print/print3.c \
 293                 test/print/print4.c \
 294                 test/print/print5.c \
 295                 test/thread/thread1.c
 296
 297         ifeq ($(KARCH),mips32)
 298                 GENERIC_SOURCES += test/debug/mips1.c
 299         else
 300                 GENERIC_SOURCES += test/debug/mips1_skip.c
 301         endif
 302
 303         ifeq ($(KARCH),ia64)
 304                 GENERIC_SOURCES += test/mm/purge1.c
 305         else
 306                 GENERIC_SOURCES += test/mm/purge1_skip.c
 307         endif
 308
 309 endif
 310
 311 ## Sources where instrumentation is enabled
 312 #
 313
 314 ifeq ($(CONFIG_TRACE),y)
 315         INSTRUMENTED_SOURCES = \
 316                 generic/src/adt/btree.c \
 317                 generic/src/cpu/cpu.c \
 318                 generic/src/ddi/ddi.c \
 319                 generic/src/interrupt/interrupt.c \
 320                 generic/src/main/main.c \
 321                 generic/src/main/kinit.c \
 322                 generic/src/proc/the.c \
 323                 generic/src/mm/frame.c \
 324                 generic/src/mm/page.c \
 325                 generic/src/mm/tlb.c \
 326                 generic/src/mm/as.c \
 327                 generic/src/mm/slab.c \
 328                 generic/src/sysinfo/sysinfo.c \
 329                 generic/src/console/kconsole.c
 330 else
 331         INSTRUMENTED_SOURCES =
 332 endif
 333
 334 ARCH_SOURCES += $(ARCH_AUTOCHECK_HEADERS:%.h=%.check.c)
 335 GENARCH_SOURCES += $(GENARCH_AUTOCHECK_HEADERS:%.h=%.check.c)
 336
 337 GENERIC_OBJECTS := $(addsuffix .o,$(basename $(GENERIC_SOURCES)))
 338 ARCH_OBJECTS := $(addsuffix .o,$(basename $(ARCH_SOURCES)))
 339 GENARCH_OBJECTS := $(addsuffix .o,$(basename $(GENARCH_SOURCES)))
 340
 341 GENERIC_DEPENDS := $(addsuffix .d,$(basename $(GENERIC_SOURCES)))
 342 ARCH_DEPENDS := $(addsuffix .d,$(basename $(ARCH_SOURCES)))
 343 GENARCH_DEPENDS := $(addsuffix .d,$(basename $(GENARCH_SOURCES)))
 344
 345 AS_CFLAGS := $(addprefix -Xassembler ,$(AFLAGS))
 346
 347 -include $(GENERIC_DEPENDS)
 348 -include $(ARCH_DEPENDS)
 349 -include $(GENARCH_DEPENDS)
 350
 351 ifeq ($(COMPILER),clang)
 352         AS_CFLAGS += -mllvm -asm-macro-max-nesting-depth=1000
 353 endif
 354
 355 ifeq ($(CONFIG_SYMTAB),y)
 356         SYMTAB_OBJECTS := generic/src/debug/real_map.o
 357 else
 358         SYMTAB_OBJECTS :=
 359 endif
 360
 361 $(DISASM): $(KERNEL)
 362 ifeq ($(CONFIG_LINE_DEBUG),y)
 363         $(OBJDUMP) -d -S $< > $@
 364 else
 365         $(OBJDUMP) -d $< > $@
 366 endif
 367
 368 $(KERNEL): $(LINK) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(SYMTAB_OBJECTS)
 369         $(CC) $(DEFS) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$(MAP) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(SYMTAB_OBJECTS)
 370
 371 $(LINK): $(LINK).in
 372         $(CC) $(DEFS) $(CFLAGS) -D__ASSEMBLER__ -D__LINKER__ -E -x c $< | grep -v "^\#" > $@
 373
 374 %.check.c: %.h $(AUTOCHECK)
 375         cd $(<D) && $(AUTOCHECK) $(<F) > $(@F)
 376
 377 %.o: %.S
 378         $(CC_JOB) -c -MD -MP $(DEFS) $(CFLAGS) $(AS_CFLAGS)
 379
 380 %.o: %.s
 381         $(CC_JOB) -c -MD -MP $(DEFS) $(CFLAGS) $(AS_CFLAGS)
 382
 383 %.o: %.c
 384         $(CC_JOB) -c -MD -MP $(DEFS) $(CFLAGS) $(EXTRA_FLAGS) $(FPU_NO_CFLAGS) $(if $(findstring $<,$(INSTRUMENTED_SOURCES)),$(INSTRUMENTATION))
 385
 386 $(REAL_MAP).o: $(REAL_MAP).bin
 387         echo "$(AS_PROLOG)""$(SYMTAB_SECTION)"" .incbin \"$<\"" | $(CC) $(CFLAGS) $(AS_CFLAGS) -x assembler -c -o $@ -
 388
 389 $(REAL_MAP).bin: $(LINK) $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS)
 390         echo "$(AS_PROLOG)""$(SYMTAB_SECTION)" | $(CC) $(CFLAGS) $(AS_CFLAGS) -x assembler -c -o $(EMPTY_MAP) -
 391         $(CC) $(DEFS) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$(MAP_PREV) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(EMPTY_MAP)
 392         $(OBJDUMP) -t $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) > $(DUMP)
 393         $(GENMAP) $(MAP_PREV) $(DUMP) $@
 394
 395         # Do it once again, this time to get correct even the symbols
 396         # on architectures that have bss after symtab
 397
 398         echo "$(AS_PROLOG)""$(SYMTAB_SECTION)"" .incbin \"$@\"" | $(CC) $(CFLAGS) $(AS_CFLAGS) -x assembler -c -o $(SIZEOK_MAP) -
 399         $(CC) $(DEFS) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$(MAP_PREV) -o $@ $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) $(EXTRA_OBJECTS) $(SIZEOK_MAP)
 400         $(OBJDUMP) -t $(ARCH_OBJECTS) $(GENARCH_OBJECTS) $(GENERIC_OBJECTS) > $(DUMP)
 401         $(GENMAP) $(MAP_PREV) $(DUMP) $@