-#
-# Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
+#
+# This file is included by the global makefile so that you can add your own
+# architecture-specific flags and dependencies.
+#
+# Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
# Licensed under the GPL
#
$(ARCH_DIR)/drivers/ \
$(ARCH_DIR)/os-$(OS)/
-# Have to precede the include because the included Makefiles reference them.
-SYMLINK_HEADERS := archparam.h system.h sigcontext.h processor.h ptrace.h \
- module.h vm-flags.h elf.h
-SYMLINK_HEADERS := $(foreach header,$(SYMLINK_HEADERS),include/asm-um/$(header))
-
-# XXX: The "os" symlink is only used by arch/um/include/os.h, which includes
-# ../os/include/file.h
-#
-# These are cleaned up during mrproper. Please DO NOT fix it again, this is
-# the Correct Thing(tm) to do!
-ARCH_SYMLINKS = include/asm-um/arch $(ARCH_DIR)/include/sysdep $(ARCH_DIR)/os \
- $(SYMLINK_HEADERS) $(ARCH_DIR)/include/uml-config.h
-
-GEN_HEADERS += $(ARCH_DIR)/include/task.h $(ARCH_DIR)/include/kern_constants.h
-
-um-modes-$(CONFIG_MODE_TT) += tt
-um-modes-$(CONFIG_MODE_SKAS) += skas
-
-MODE_INCLUDE += $(foreach mode,$(um-modes-y),\
- -I$(srctree)/$(ARCH_DIR)/kernel/$(mode)/include)
+MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas
-MAKEFILES-INCL += $(foreach mode,$(um-modes-y),\
- $(srctree)/$(ARCH_DIR)/Makefile-$(mode))
+include $(srctree)/$(ARCH_DIR)/Makefile-skas
-ifneq ($(MAKEFILES-INCL),)
- include $(MAKEFILES-INCL)
-endif
-
-ARCH_INCLUDE := -I$(ARCH_DIR)/include
+SHARED_HEADERS := $(ARCH_DIR)/include/shared
+ARCH_INCLUDE := -I$(srctree)/$(SHARED_HEADERS)
+ARCH_INCLUDE += -I$(srctree)/$(ARCH_DIR)/sys-$(SUBARCH)/shared
ifneq ($(KBUILD_SRC),)
-ARCH_INCLUDE += -I$(ARCH_DIR)/include2
-ARCH_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include
-MRPROPER_DIRS += $(ARCH_DIR)/include2
+ARCH_INCLUDE += -I$(SHARED_HEADERS)
endif
-SYS_DIR := $(ARCH_DIR)/include/sysdep-$(SUBARCH)
+KBUILD_CPPFLAGS += -I$(srctree)/$(ARCH_DIR)/sys-$(SUBARCH)
-# -Dvmap=kernel_vmap affects everything, and prevents anything from
-# referencing the libpcap.o symbol so named.
-
-CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \
- $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap
+# -Dvmap=kernel_vmap prevents anything from referencing the libpcap.o symbol so
+# named - it's a common symbol in libpcap, so we get a binary which crashes.
+#
+# Same things for in6addr_loopback and mktime - found in libc. For these two we
+# only get link-time error, luckily.
+#
+# These apply to USER_CFLAGS to.
-USER_CFLAGS := $(patsubst -I%,,$(CFLAGS))
-USER_CFLAGS := $(patsubst -D__KERNEL__,,$(USER_CFLAGS)) $(ARCH_INCLUDE) \
- $(MODE_INCLUDE)
+KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \
+ $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \
+ -Din6addr_loopback=kernel_in6addr_loopback \
+ -Din6addr_any=kernel_in6addr_any
-# -Derrno=kernel_errno - This turns all kernel references to errno into
-# kernel_errno to separate them from the libc errno. This allows -fno-common
-# in CFLAGS. Otherwise, it would cause ld to complain about the two different
-# errnos.
+KBUILD_AFLAGS += $(ARCH_INCLUDE)
-CFLAGS += -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask
-CFLAGS += $(call cc-option,-fno-unit-at-a-time,)
+USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
+ $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
+ $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64
include $(srctree)/$(ARCH_DIR)/Makefile-$(SUBARCH)
#This will adjust *FLAGS accordingly to the platform.
include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
-# These are needed for clean and mrproper, since in that case .config is not
-# included; the values here are meaningless
-
-CONFIG_NEST_LEVEL ?= 0
-CONFIG_KERNEL_HALF_GIGS ?= 0
+KBUILD_CPPFLAGS += -I$(srctree)/arch/$(HEADER_ARCH)/include
-SIZE = (($(CONFIG_NEST_LEVEL) + $(CONFIG_KERNEL_HALF_GIGS)) * 0x20000000)
+# -Derrno=kernel_errno - This turns all kernel references to errno into
+# kernel_errno to separate them from the libc errno. This allows -fno-common
+# in KBUILD_CFLAGS. Otherwise, it would cause ld to complain about the two different
+# errnos.
+# These apply to kernelspace only.
+#
+# strip leading and trailing whitespace to make the USER_CFLAGS removal of these
+# defines more robust
-ifeq ($(CONFIG_MODE_SKAS), y)
-$(SYS_HEADERS) : $(ARCH_DIR)/include/skas_ptregs.h
-endif
+KERNEL_DEFINES = $(strip -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
+ -Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES))
+KBUILD_CFLAGS += $(KERNEL_DEFINES)
-.PHONY: linux
+PHONY += linux
all: linux
linux: vmlinux
- ln -f $< $@
+ @echo ' LINK $@'
+ $(Q)ln -f $< $@
define archhelp
echo '* linux - Binary kernel image (./linux) - for backward'
echo ' compatibility only, this creates a hard link to the'
- echo ' real kernel binary, the the "vmlinux" binary you'
+ echo ' real kernel binary, the "vmlinux" binary you'
echo ' find in the kernel root.'
endef
-ifneq ($(KBUILD_SRC),)
-$(shell mkdir -p $(ARCH_DIR) && ln -fsn $(srctree)/$(ARCH_DIR)/Kconfig_$(SUBARCH) $(ARCH_DIR)/Kconfig_arch)
-CLEAN_FILES += $(ARCH_DIR)/Kconfig_arch
-else
-$(shell cd $(ARCH_DIR) && ln -sf Kconfig_$(SUBARCH) Kconfig_arch)
-endif
+KBUILD_KCONFIG := arch/um/Kconfig.$(HEADER_ARCH)
-prepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS)
+archprepare: $(SHARED_HEADERS)/user_constants.h
+archprepare: $(SHARED_HEADERS)/kern_constants.h
LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
-CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT
-CONFIG_KERNEL_STACK_ORDER ?= 2
-STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
-
-ifndef START
- START = $(shell echo $$[ $(TOP_ADDR) - $(SIZE) ] )
-endif
+CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
+ $(call cc-option, -fno-stack-protector,) \
+ $(call cc-option, -fno-stack-protector-all,)
-CPPFLAGS_vmlinux.lds = -U$(SUBARCH) \
- -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
- -DELF_FORMAT="$(ELF_FORMAT)" $(CPP_MODE-y) \
- -DKERNEL_STACK_SIZE=$(STACK_SIZE) \
- -DUNMAP_PATH=arch/um/sys-$(SUBARCH)/unmap_fin.o
+# Options used by linker script
+export LDS_START := $(START)
+export LDS_ELF_ARCH := $(ELF_ARCH)
+export LDS_ELF_FORMAT := $(ELF_FORMAT)
-#The wrappers will select whether using "malloc" or the kernel allocator.
+# The wrappers will select whether using "malloc" or the kernel allocator.
LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
-CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS)
+LD_FLAGS_CMDLINE = $(foreach opt,$(LDFLAGS),-Wl,$(opt))
+
+CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) $(LD_FLAGS_CMDLINE)
define cmd_vmlinux__
$(CC) $(CFLAGS_vmlinux) -o $@ \
-Wl,-T,$(vmlinux-lds) $(vmlinux-init) \
-Wl,--start-group $(vmlinux-main) -Wl,--end-group \
-lutil \
- $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) \
+ $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o \
FORCE ,$^) ; rm -f linux
endef
-#When cleaning we don't include .config, so we don't include
-#TT or skas makefiles and don't clean skas_ptregs.h.
-CLEAN_FILES += linux x.i gmon.out $(ARCH_DIR)/include/uml-config.h \
- $(GEN_HEADERS) $(ARCH_DIR)/include/skas_ptregs.h \
- $(ARCH_DIR)/include/user_constants.h
-
-MRPROPER_FILES += $(SYMLINK_HEADERS) $(ARCH_SYMLINKS) \
- $(addprefix $(ARCH_DIR)/kernel/,$(KERN_SYMLINKS)) $(ARCH_DIR)/os \
- $(ARCH_DIR)/Kconfig_arch
+# When cleaning we don't include .config, so we don't include
+# TT or skas makefiles and don't clean skas_ptregs.h.
+CLEAN_FILES += linux x.i gmon.out \
+ $(SHARED_HEADERS)/user_constants.h \
+ $(SHARED_HEADERS)/kern_constants.h
archclean:
- $(Q)$(MAKE) $(clean)=$(ARCH_DIR)/util
@find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \
-o -name '*.gcov' \) -type f -print | xargs rm -f
-$(SYMLINK_HEADERS):
- @echo ' SYMLINK $@'
-ifneq ($(KBUILD_SRC),)
- ln -fsn $(srctree)/include/asm-um/$(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $@
-else
- $(Q)cd $(TOPDIR)/$(dir $@) ; \
- ln -sf $(basename $(notdir $@))-$(SUBARCH)$(suffix $@) $(notdir $@)
-endif
-
-include/asm-um/arch:
- @echo ' SYMLINK $@'
-ifneq ($(KBUILD_SRC),)
- $(Q)mkdir -p include/asm-um
- $(Q)ln -fsn $(srctree)/include/asm-$(SUBARCH) include/asm-um/arch
-else
- $(Q)cd $(TOPDIR)/include/asm-um && ln -sf ../asm-$(SUBARCH) arch
-endif
-
-$(ARCH_DIR)/include/sysdep:
- @echo ' SYMLINK $@'
-ifneq ($(KBUILD_SRC),)
- $(Q)mkdir -p $(ARCH_DIR)/include
- $(Q)mkdir -p $(ARCH_DIR)/include2
- $(Q)ln -fsn sysdep-$(SUBARCH) $(ARCH_DIR)/include/sysdep
- $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/include/sysdep-$(SUBARCH) $(ARCH_DIR)/include2/sysdep
-else
- $(Q)cd $(ARCH_DIR)/include && ln -sf sysdep-$(SUBARCH) sysdep
-endif
-
-$(ARCH_DIR)/os:
- @echo ' SYMLINK $@'
-ifneq ($(KBUILD_SRC),)
- $(Q)ln -fsn $(srctree)/$(ARCH_DIR)/os-$(OS) $(ARCH_DIR)/os
-else
- $(Q)cd $(ARCH_DIR) && ln -sf os-$(OS) os
-endif
-
# Generated files
-define filechk_umlconfig
- sed 's/ CONFIG/ UML_CONFIG/'
-endef
-
-$(ARCH_DIR)/include/uml-config.h : include/linux/autoconf.h
- $(call filechk,umlconfig)
-
-$(ARCH_DIR)/user-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.c
- $(CC) $(USER_CFLAGS) -S -o $@ $<
-$(ARCH_DIR)/user-offsets.h: $(ARCH_DIR)/user-offsets.s
- $(call filechk,gen-asm-offsets)
-
-CLEAN_FILES += $(ARCH_DIR)/user-offsets.s $(ARCH_DIR)/user-offsets.h
-
-$(ARCH_DIR)/kernel-offsets.s: $(ARCH_DIR)/sys-$(SUBARCH)/kernel-offsets.c \
- $(ARCH_SYMLINKS) \
- $(SYS_DIR)/sc.h \
- include/asm include/linux/version.h \
- include/config/MARKER \
- $(ARCH_DIR)/include/user_constants.h
- $(CC) $(CFLAGS) $(NOSTDINC_FLAGS) $(CPPFLAGS) -S -o $@ $<
+$(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s: FORCE
+ $(Q)$(MAKE) $(build)=$(ARCH_DIR)/sys-$(SUBARCH) $@
+
+define filechk_gen-asm-offsets
+ (set -e; \
+ echo "/*"; \
+ echo " * DO NOT MODIFY."; \
+ echo " *"; \
+ echo " * This file was generated by arch/$(ARCH)/Makefile"; \
+ echo " *"; \
+ echo " */"; \
+ echo ""; \
+ sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
+ echo ""; )
+endef
-$(ARCH_DIR)/kernel-offsets.h: $(ARCH_DIR)/kernel-offsets.s
+$(SHARED_HEADERS)/user_constants.h: $(ARCH_DIR)/sys-$(SUBARCH)/user-offsets.s
$(call filechk,gen-asm-offsets)
-CLEAN_FILES += $(ARCH_DIR)/kernel-offsets.s $(ARCH_DIR)/kernel-offsets.h
-
-$(ARCH_DIR)/include/task.h: $(ARCH_DIR)/util/mk_task
- $(call filechk,gen_header)
-
-$(ARCH_DIR)/include/user_constants.h: $(ARCH_DIR)/os-$(OS)/util/mk_user_constants
- $(call filechk,gen_header)
-
-$(ARCH_DIR)/include/kern_constants.h: $(ARCH_DIR)/util/mk_constants
- $(call filechk,gen_header)
-
-$(ARCH_DIR)/include/skas_ptregs.h: $(ARCH_DIR)/kernel/skas/util/mk_ptregs
- $(call filechk,gen_header)
-
-$(ARCH_DIR)/os-$(OS)/util/mk_user_constants: $(ARCH_DIR)/os-$(OS)/util FORCE ;
-
-$(ARCH_DIR)/util/mk_task $(ARCH_DIR)/util/mk_constants: $(ARCH_DIR)/include/user_constants.h $(ARCH_DIR)/util \
- FORCE ;
-
-$(ARCH_DIR)/kernel/skas/util/mk_ptregs: $(ARCH_DIR)/kernel/skas/util FORCE ;
-
-$(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h $(ARCH_DIR)/kernel-offsets.h FORCE
- $(Q)$(MAKE) $(build)=$@
-
-$(ARCH_DIR)/kernel/skas/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE
- $(Q)$(MAKE) $(build)=$@
-
-$(ARCH_DIR)/os-$(OS)/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE
- $(Q)$(MAKE) $(build)=$@
+$(SHARED_HEADERS)/kern_constants.h:
+ $(Q)mkdir -p $(dir $@)
+ $(Q)echo '#include "../../../../include/asm/asm-offsets.h"' >$@
-export SUBARCH USER_CFLAGS OS
+export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff