qcaux: add more Pantech UML190 and UML290 ports
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / um / Makefile
blob7730af6ec13feba4898ca3a8e85e3e416c57c33d
2 # This file is included by the global makefile so that you can add your own
3 # architecture-specific flags and dependencies.
5 # Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
6 # Licensed under the GPL
9 ARCH_DIR := arch/um
10 OS := $(shell uname -s)
11 # We require bash because the vmlinux link and loader script cpp use bash
12 # features.
13 SHELL := /bin/bash
15 filechk_gen_header = $<
17 core-y += $(ARCH_DIR)/kernel/ \
18 $(ARCH_DIR)/drivers/ \
19 $(ARCH_DIR)/os-$(OS)/
21 MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas
23 HEADER_ARCH := $(SUBARCH)
25 # Additional ARCH settings for x86
26 ifeq ($(SUBARCH),i386)
27 HEADER_ARCH := x86
28 endif
29 ifeq ($(SUBARCH),x86_64)
30 HEADER_ARCH := x86
31 endif
33 HOST_DIR := arch/$(HEADER_ARCH)
35 include $(srctree)/$(ARCH_DIR)/Makefile-skas
36 include $(srctree)/$(HOST_DIR)/Makefile.um
38 core-y += $(HOST_DIR)/um/
40 SHARED_HEADERS := $(ARCH_DIR)/include/shared
41 ARCH_INCLUDE := -I$(srctree)/$(SHARED_HEADERS)
42 ARCH_INCLUDE += -I$(srctree)/$(HOST_DIR)/um/shared
43 KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/um
45 # -Dvmap=kernel_vmap prevents anything from referencing the libpcap.o symbol so
46 # named - it's a common symbol in libpcap, so we get a binary which crashes.
48 # Same things for in6addr_loopback and mktime - found in libc. For these two we
49 # only get link-time error, luckily.
51 # These apply to USER_CFLAGS to.
53 KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \
54 $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \
55 -Din6addr_loopback=kernel_in6addr_loopback \
56 -Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
58 KBUILD_AFLAGS += $(ARCH_INCLUDE)
60 USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
61 $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
62 $(filter -I%,$(CFLAGS)) -D_FILE_OFFSET_BITS=64 -idirafter include
64 #This will adjust *FLAGS accordingly to the platform.
65 include $(srctree)/$(ARCH_DIR)/Makefile-os-$(OS)
67 KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/include
69 # -Derrno=kernel_errno - This turns all kernel references to errno into
70 # kernel_errno to separate them from the libc errno. This allows -fno-common
71 # in KBUILD_CFLAGS. Otherwise, it would cause ld to complain about the two different
72 # errnos.
73 # These apply to kernelspace only.
75 # strip leading and trailing whitespace to make the USER_CFLAGS removal of these
76 # defines more robust
78 KERNEL_DEFINES = $(strip -Derrno=kernel_errno -Dsigprocmask=kernel_sigprocmask \
79 -Dmktime=kernel_mktime $(ARCH_KERNEL_DEFINES))
80 KBUILD_CFLAGS += $(KERNEL_DEFINES)
82 PHONY += linux
84 all: linux
86 linux: vmlinux
87 @echo ' LINK $@'
88 $(Q)ln -f $< $@
90 define archhelp
91 echo '* linux - Binary kernel image (./linux) - for backward'
92 echo ' compatibility only, this creates a hard link to the'
93 echo ' real kernel binary, the "vmlinux" binary you'
94 echo ' find in the kernel root.'
95 endef
97 KBUILD_KCONFIG := $(HOST_DIR)/um/Kconfig
99 archprepare: include/generated/user_constants.h
101 LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
102 LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
104 CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
105 $(call cc-option, -fno-stack-protector,) \
106 $(call cc-option, -fno-stack-protector-all,)
108 # Options used by linker script
109 export LDS_START := $(START)
110 export LDS_ELF_ARCH := $(ELF_ARCH)
111 export LDS_ELF_FORMAT := $(ELF_FORMAT)
113 # The wrappers will select whether using "malloc" or the kernel allocator.
114 LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
116 LD_FLAGS_CMDLINE = $(foreach opt,$(LDFLAGS),-Wl,$(opt))
118 CFLAGS_vmlinux := $(LINK-y) $(LINK_WRAPS) $(LD_FLAGS_CMDLINE)
119 define cmd_vmlinux__
120 $(CC) $(CFLAGS_vmlinux) -o $@ \
121 -Wl,-T,$(vmlinux-lds) $(vmlinux-init) \
122 -Wl,--start-group $(vmlinux-main) -Wl,--end-group \
123 -lutil \
124 $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o \
125 FORCE ,$^) ; rm -f linux
126 endef
128 # When cleaning we don't include .config, so we don't include
129 # TT or skas makefiles and don't clean skas_ptregs.h.
130 CLEAN_FILES += linux x.i gmon.out
132 archclean:
133 @find . \( -name '*.bb' -o -name '*.bbg' -o -name '*.da' \
134 -o -name '*.gcov' \) -type f -print | xargs rm -f
136 # Generated files
138 $(HOST_DIR)/um/user-offsets.s: FORCE
139 $(Q)$(MAKE) $(build)=$(HOST_DIR)/um $@
141 define filechk_gen-asm-offsets
142 (set -e; \
143 echo "/*"; \
144 echo " * DO NOT MODIFY."; \
145 echo " *"; \
146 echo " * This file was generated by arch/$(ARCH)/Makefile"; \
147 echo " *"; \
148 echo " */"; \
149 echo ""; \
150 sed -ne "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}"; \
151 echo ""; )
152 endef
154 include/generated/user_constants.h: $(HOST_DIR)/um/user-offsets.s
155 $(call filechk,gen-asm-offsets)
157 export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS DEV_NULL_PATH