linux/arch/mips/Makefile

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#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
# DECStation modifications by Paul M. Antoine, 1996
# Copyright (C) 2002, 2003, 2004 Maciej W. Rozycki
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" cleaning up for this architecture.
#
archscripts: scripts_basic
$(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
KBUILD_DEFCONFIG := 32r2el_defconfig
#
# Select the object file format to substitute into the linker script.
#
ifdef CONFIG_CPU_LITTLE_ENDIAN
32bit-tool-archpref = mipsel
64bit-tool-archpref = mips64el
32bit-bfd = elf32-tradlittlemips
64bit-bfd = elf64-tradlittlemips
32bit-emul = elf32ltsmip
64bit-emul = elf64ltsmip
else
32bit-tool-archpref = mips
64bit-tool-archpref = mips64
32bit-bfd = elf32-tradbigmips
64bit-bfd = elf64-tradbigmips
32bit-emul = elf32btsmip
64bit-emul = elf64btsmip
endif
ifdef CONFIG_32BIT
tool-archpref = $(32bit-tool-archpref)
UTS_MACHINE := mips
endif
ifdef CONFIG_64BIT
tool-archpref = $(64bit-tool-archpref)
UTS_MACHINE := mips64
endif
ifneq ($(SUBARCH),$(ARCH))
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux- $(tool-archpref)-linux-gnu- $(tool-archpref)-unknown-linux-gnu-)
endif
endif
MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address That thread "MIPS: Add option to pass return address location to _mcount" from "David Daney <ddaney@caviumnetworks.com>" have added a new option -mmcount-ra-address to gcc(4.5) for MIPS to transfer the location of the return address to _mcount. Benefit from this new feature, function graph tracer on MIPS will be easier and safer to hijack the return address of the kernel function, which will save some overhead and make the whole thing more reliable. In this patch, at first, try to enable the option -mmcount-ra-address in arch/mips/Makefile with cc-option, if gcc support it, it will be enabled, otherwise, no side effect. and then, we need to support this new option of gcc 4.5 and also support the old gcc versions. with _mcount in the old gcc versions, it's not easy to get the location of return address(tracing: add function graph tracer support for MIPS), so, we do it in a C function: ftrace_get_parent_addr(ftrace.c), but with -mmcount-ra-address, only several instructions need to get what we want, so, I put into asm(mcount.S). and also, as the $12(t0) is used by -mmcount-ra-address for transferring the localtion of return address to _mcount, we need to save it into the stack and restore it when enabled dynamic function tracer, 'Cause we have called "ftrace_call" before "ftrace_graph_caller", which may destroy $12(t0). (Thanks to David for providing that -mcount-ra-address and giving the idea of KBUILD_MCOUNT_RA_ADDRESS, both of them have made the whole thing more beautiful!) Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nicholas Mc Guire <der.herr@hofr.at> Cc: zhangfx@lemote.com Cc: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/681/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-11-20 12:34:38 +00:00
ifdef CONFIG_FUNCTION_GRAPH_TRACER
ifndef KBUILD_MCOUNT_RA_ADDRESS
ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
endif
endif
endif
cflags-y += $(call cc-option, -mno-check-zero-division)
ifdef CONFIG_32BIT
ld-emul = $(32bit-emul)
vmlinux-32 = vmlinux
vmlinux-64 = vmlinux.64
cflags-y += -mabi=32
endif
ifdef CONFIG_64BIT
ld-emul = $(64bit-emul)
vmlinux-32 = vmlinux.32
vmlinux-64 = vmlinux
cflags-y += -mabi=64
endif
all-$(CONFIG_BOOT_ELF32) := $(vmlinux-32)
all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64)
all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
#
# GCC uses -G 0 -mabicalls -fpic as default. We don't want PIC in the kernel
# code since it only slows down the whole thing. At some point we might make
# use of global pointer optimizations but their use of $28 conflicts with
# the current pointer optimization.
#
# The DECStation requires an ECOFF kernel for remote booting, other MIPS
# machines may also. Since BFD is incredibly buggy with respect to
# crossformat linking we rely on the elf2ecoff tool for format conversion.
#
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line It is now possible to assign options to AS, CC and LD on the command line - which is only used when building modules. {A,C,LD}FLAGS_MODULE was all used both in the top-level Makefile in the arch makefiles, thus users had no way to specify additional options to AS, CC, LD when building modules without overriding the original value. Introduce a new set of variables KBUILD_{A,C,LD}FLAGS_MODULE that is used by arch specific files and free up {A,C,LD}FLAGS_MODULE so they can be assigned on the command line. All arch Makefiles that used the old variables has been updated. Note: Previously we had a MODFLAGS variable for both AS and CC. But in favour of consistency this was dropped. So in some cases arch Makefile has one assignmnet replaced by two assignmnets. Note2: MODFLAGS was not documented and is dropped without any notice. I do not expect much/any breakage from this. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Denys Vlasenko <vda.linux@googlemail.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Chen Liqin <liqin.chen@sunplusct.com> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [avr32] Signed-off-by: Michal Marek <mmarek@suse.cz>
2010-07-28 15:33:09 +00:00
KBUILD_AFLAGS_MODULE += -mlong-calls
KBUILD_CFLAGS_MODULE += -mlong-calls
ifeq ($(CONFIG_RELOCATABLE),y)
LDFLAGS_vmlinux += --emit-relocs
endif
#
# pass -msoft-float to GAS if it supports it. However on newer binutils
# (specifically newer than 2.24.51.20140728) we then also need to explicitly
# set ".set hardfloat" in all files which manipulate floating point registers.
#
ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
cflags-y += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
endif
cflags-y += -ffreestanding
#
# We explicitly add the endianness specifier if needed, this allows
# to compile kernels with a toolchain for the other endianness. We
# carefully avoid to add it redundantly because gcc 3.3/3.4 complains
# when fed the toolchain default!
#
# Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
# 2006-10-10 don't properly change the predefined symbols if -EB / -EL
# are used, so we kludge that here. A bug has been filed at
# http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
#
undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
-fno-omit-frame-pointer
# Some distribution-specific toolchains might pass the -fstack-check
# option during the build, which adds a simple stack-probe at the beginning
# of every function. This stack probe is to ensure that there is enough
# stack space, else a SEGV is generated. This is not desirable for MIPS
# as kernel stacks are small, placed in unmapped virtual memory, and do not
# grow when overflowed. Especially on SGI IP27 platforms, this check will
# lead to a NULL pointer dereference in _raw_spin_lock_irq.
#
# In disassembly, this stack probe appears at the top of a function as:
# sd zero,<offset>(sp)
# Where <offset> is a negative value.
#
cflags-y += -fno-stack-check
#
# CPU-dependent compiler/assembler options for optimization.
#
cflags-$(CONFIG_CPU_R3000) += -march=r3000
cflags-$(CONFIG_CPU_TX39XX) += -march=r3900
cflags-$(CONFIG_CPU_R4300) += -march=r4300 -Wa,--trap
cflags-$(CONFIG_CPU_VR41XX) += -march=r4100 -Wa,--trap
cflags-$(CONFIG_CPU_R4X00) += -march=r4600 -Wa,--trap
cflags-$(CONFIG_CPU_TX49XX) += -march=r4600 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS32_R1) += $(call cc-option,-march=mips32,-mips32 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
-Wa,-mips32 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS32_R2) += $(call cc-option,-march=mips32r2,-mips32r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS32) \
-Wa,-mips32r2 -Wa,--trap
MIPS: build: Fix "-modd-spreg" switch usage when compiling for mips32r6 Add "-modd-spreg" when compiling the kernel for mips32r6 target. This makes sure the kernel builds properly even with toolchains that use "-mno-odd-spreg" by default. This is the case with Android gcc. Prior to this patch, kernel builds using gcc for Android failed with following error messages, if target architecture is set to mips32r6: arch/mips/kernel/r4k_switch.S: Assembler messages: .../r4k_switch.S:210: Error: float register should be even, was 1 .../r4k_switch.S:212: Error: float register should be even, was 3 .../r4k_switch.S:214: Error: float register should be even, was 5 .../r4k_switch.S:216: Error: float register should be even, was 7 .../r4k_switch.S:218: Error: float register should be even, was 9 .../r4k_switch.S:220: Error: float register should be even, was 11 .../r4k_switch.S:222: Error: float register should be even, was 13 .../r4k_switch.S:224: Error: float register should be even, was 15 .../r4k_switch.S:226: Error: float register should be even, was 17 .../r4k_switch.S:228: Error: float register should be even, was 19 .../r4k_switch.S:230: Error: float register should be even, was 21 .../r4k_switch.S:232: Error: float register should be even, was 23 .../r4k_switch.S:234: Error: float register should be even, was 25 .../r4k_switch.S:236: Error: float register should be even, was 27 .../r4k_switch.S:238: Error: float register should be even, was 29 .../r4k_switch.S:240: Error: float register should be even, was 31 make[2]: *** [arch/mips/kernel/r4k_switch.o] Error 1 Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Cc: James.Hogan@imgtec.com Cc: Paul.Burton@imgtec.com Cc: Raghu.Gandham@imgtec.com Cc: Leonid.Yegoshin@imgtec.com Cc: Douglas.Leung@imgtec.com Cc: Petar.Jovanovic@imgtec.com Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16509/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-06-19 15:50:09 +00:00
cflags-$(CONFIG_CPU_MIPS32_R6) += -march=mips32r6 -Wa,--trap -modd-spreg
cflags-$(CONFIG_CPU_MIPS64_R1) += $(call cc-option,-march=mips64,-mips64 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
-Wa,-mips64 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS64_R2) += $(call cc-option,-march=mips64r2,-mips64r2 -U_MIPS_ISA -D_MIPS_ISA=_MIPS_ISA_MIPS64) \
-Wa,-mips64r2 -Wa,--trap
cflags-$(CONFIG_CPU_MIPS64_R6) += -march=mips64r6 -Wa,--trap
cflags-$(CONFIG_CPU_R5000) += -march=r5000 -Wa,--trap
cflags-$(CONFIG_CPU_R5432) += $(call cc-option,-march=r5400,-march=r5000) \
-Wa,--trap
cflags-$(CONFIG_CPU_R5500) += $(call cc-option,-march=r5500,-march=r5000) \
-Wa,--trap
cflags-$(CONFIG_CPU_NEVADA) += $(call cc-option,-march=rm5200,-march=r5000) \
-Wa,--trap
cflags-$(CONFIG_CPU_RM7000) += $(call cc-option,-march=rm7000,-march=r5000) \
-Wa,--trap
cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-march=sb1,-march=r5000) \
-Wa,--trap
cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mdmx)
cflags-$(CONFIG_CPU_SB1) += $(call cc-option,-mno-mips3d)
cflags-$(CONFIG_CPU_R8000) += -march=r8000 -Wa,--trap
cflags-$(CONFIG_CPU_R10000) += $(call cc-option,-march=r10000,-march=r8000) \
-Wa,--trap
cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
endif
cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
cflags-$(CONFIG_CPU_BMIPS) += -march=mips32 -Wa,-mips32 -Wa,--trap
[MIPS] R4000/R4400 errata workarounds This is the gereric part of R4000/R4400 errata workarounds. They include compiler and assembler support as well as some source code modifications to address the problems with some combinations of multiply/divide+shift instructions as well as the daddi and daddiu instructions. Changes included are as follows: 1. New Kconfig options to select workarounds by platforms as necessary. 2. Arch top-level Makefile to pass necessary options to the compiler; also incompatible configurations are detected (-mno-sym32 unsupported as horribly intrusive for little gain). 3. Bug detection updated and shuffled -- the multiply/divide+shift problem is lethal enough that if not worked around it makes the kernel crash in time_init() because of a division by zero; the daddiu erratum might also trigger early potentially, though I have not observed it. On the other hand the daddi detection code requires the exception subsystem to have been initialised (and is there mainly for information). 4. r4k_daddiu_bug() added so that the existence of the erratum can be queried by code at the run time as necessary; useful for generated code like TLB fault and copy/clear page handlers. 5. __udelay() updated as it uses multiplication in inline assembly. Note that -mdaddi requires modified toolchain (which has been maintained by myself and available from my site for ~4years now -- versions covered are GCC 2.95.4 - 4.1.2 and binutils from 2.13 onwards). The -mfix-r4000 and -mfix-r4400 have been standard for a while though. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-23 11:43:11 +00:00
cflags-$(CONFIG_CPU_R4000_WORKAROUNDS) += $(call cc-option,-mfix-r4000,)
cflags-$(CONFIG_CPU_R4400_WORKAROUNDS) += $(call cc-option,-mfix-r4400,)
cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS) += $(call cc-option,-mno-daddi,)
# For smartmips configurations, there are hundreds of warnings due to ISA overrides
# in assembly and header files. smartmips is only supported for MIPS32r1 onwards
# and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
# similar directives in the kernel will spam the build logs with the following warnings:
# Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
# or
# Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
# Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
# been fixed properly.
mips-cflags := $(cflags-y)
ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
smartmips-ase := $(call cc-option-yn,$(mips-cflags) -msmartmips)
cflags-$(smartmips-ase) += -msmartmips -Wa,--no-warn
endif
ifeq ($(CONFIG_CPU_MICROMIPS),y)
micromips-ase := $(call cc-option-yn,$(mips-cflags) -mmicromips)
cflags-$(micromips-ase) += -mmicromips
endif
ifeq ($(CONFIG_CPU_HAS_MSA),y)
toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
endif
toolchain-virt := $(call cc-option-yn,$(mips-cflags) -mvirt)
cflags-$(toolchain-virt) += -DTOOLCHAIN_SUPPORTS_VIRT
#
# Firmware support
#
libs-$(CONFIG_FW_ARC) += arch/mips/fw/arc/
libs-$(CONFIG_FW_CFE) += arch/mips/fw/cfe/
libs-$(CONFIG_FW_SNIPROM) += arch/mips/fw/sni/
libs-y += arch/mips/fw/lib/
#
# Kernel compression
#
ifdef SYS_SUPPORTS_ZBOOT
COMPRESSION_FNAME = vmlinuz
else
COMPRESSION_FNAME = vmlinux
endif
#
# Board-dependent options and extra files
#
include arch/mips/Kbuild.platforms
ifdef CONFIG_PHYSICAL_START
load-y = $(CONFIG_PHYSICAL_START)
endif
entry-noisa-y = 0x$(shell $(NM) vmlinux 2>/dev/null \
| grep "\bkernel_entry\b" | cut -f1 -d \ )
ifdef CONFIG_CPU_MICROMIPS
#
# Set the ISA bit, since the kernel_entry symbol in the ELF will have it
# clear which would lead to images containing addresses which bootloaders may
# jump to as MIPS32 code.
#
entry-y = $(patsubst %0,%1,$(patsubst %2,%3,$(patsubst %4,%5, \
$(patsubst %6,%7,$(patsubst %8,%9,$(patsubst %a,%b, \
$(patsubst %c,%d,$(patsubst %e,%f,$(entry-noisa-y)))))))))
else
entry-y = $(entry-noisa-y)
endif
cflags-y += -I$(srctree)/arch/mips/include/asm/mach-generic
drivers-$(CONFIG_PCI) += arch/mips/pci/
#
# Automatically detect the build format. By default we choose
# the elf format according to the load address.
# We can always force a build with a 64-bits symbol format by
# passing 'KBUILD_SYM32=no' option to the make's command line.
#
ifdef CONFIG_64BIT
ifndef KBUILD_SYM32
ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
KBUILD_SYM32 = y
endif
endif
[MIPS] R4000/R4400 errata workarounds This is the gereric part of R4000/R4400 errata workarounds. They include compiler and assembler support as well as some source code modifications to address the problems with some combinations of multiply/divide+shift instructions as well as the daddi and daddiu instructions. Changes included are as follows: 1. New Kconfig options to select workarounds by platforms as necessary. 2. Arch top-level Makefile to pass necessary options to the compiler; also incompatible configurations are detected (-mno-sym32 unsupported as horribly intrusive for little gain). 3. Bug detection updated and shuffled -- the multiply/divide+shift problem is lethal enough that if not worked around it makes the kernel crash in time_init() because of a division by zero; the daddiu erratum might also trigger early potentially, though I have not observed it. On the other hand the daddi detection code requires the exception subsystem to have been initialised (and is there mainly for information). 4. r4k_daddiu_bug() added so that the existence of the erratum can be queried by code at the run time as necessary; useful for generated code like TLB fault and copy/clear page handlers. 5. __udelay() updated as it uses multiplication in inline assembly. Note that -mdaddi requires modified toolchain (which has been maintained by myself and available from my site for ~4years now -- versions covered are GCC 2.95.4 - 4.1.2 and binutils from 2.13 onwards). The -mfix-r4000 and -mfix-r4400 have been standard for a while though. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-23 11:43:11 +00:00
ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
cflags-y += -msym32 -DKBUILD_64BIT_SYM32
else
ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
$(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
endif
endif
endif
KBUILD_AFLAGS += $(cflags-y)
arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0 Albin Tonnerre <albin.tonnerre@free-electrons.com> reported: Bash 4 filters out variables which contain a dot in them. This happends to be the case of CPPFLAGS_vmlinux.lds. This is rather unfortunate, as it now causes build failures when using SHELL=/bin/bash to compile, or when bash happens to be used by make (eg when it's /bin/sh) Remove the common definition of CPPFLAGS_vmlinux.lds by pushing relevant stuff to either Makefile.build or the arch specific kernel/Makefile where we build the linker script. This is also nice cleanup as we move the information out where it is used. Notes for the different architectures touched: arm - we use an already exported symbol cris - we use a config symbol aleady available [Not build tested] mips - the jiffies complexity has moved to vmlinux.lds.S where we need it. Added a few variables to CPPFLAGS - they are only used by the linker script. [Not build tested] powerpc - removed assignment that is not needed [not build tested] sparc - simplified it using $(BITS) um - introduced a few new exported variables to deal with this xtensa - added options to CPP invocation [not build tested] Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-09-20 10:28:22 +00:00
KBUILD_CFLAGS += $(cflags-y)
KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
bootvars-y = VMLINUX_LOAD_ADDRESS=$(load-y) \
VMLINUX_ENTRY_ADDRESS=$(entry-y) \
PLATFORM="$(platform-y)" \
ITS_INPUTS="$(its-y)"
ifdef CONFIG_32BIT
bootvars-y += ADDR_BITS=32
endif
ifdef CONFIG_64BIT
bootvars-y += ADDR_BITS=64
endif
# This is required to get dwarf unwinding tables into .debug_frame
# instead of .eh_frame so we don't discard them.
KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
LDFLAGS += -m $(ld-emul)
ifdef CONFIG_MIPS
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
ifdef CONFIG_64BIT
CHECKFLAGS += -m64
endif
endif
OBJCOPYFLAGS += --remove-section=.reginfo
head-y := arch/mips/kernel/head.o
libs-y += arch/mips/lib/
libs-y += arch/mips/math-emu/
# See arch/mips/Kbuild for content of core part of the kernel
core-y += arch/mips/
drivers-$(CONFIG_OPROFILE) += arch/mips/oprofile/
# suspend and hibernation support
drivers-$(CONFIG_PM) += arch/mips/power/
# boot image targets (arch/mips/boot/)
boot-y := vmlinux.bin
boot-y += vmlinux.ecoff
boot-y += vmlinux.srec
ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
boot-y += uImage
boot-y += uImage.bin
boot-y += uImage.bz2
boot-y += uImage.gz
boot-y += uImage.lzma
boot-y += uImage.lzo
endif
boot-y += vmlinux.itb
boot-y += vmlinux.gz.itb
boot-y += vmlinux.bz2.itb
boot-y += vmlinux.lzma.itb
boot-y += vmlinux.lzo.itb
# compressed boot image targets (arch/mips/boot/compressed/)
bootz-y := vmlinuz
bootz-y += vmlinuz.bin
bootz-y += vmlinuz.ecoff
bootz-y += vmlinuz.srec
ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
bootz-y += uzImage.bin
endif
ifdef CONFIG_LASAT
rom.bin rom.sw: vmlinux
$(Q)$(MAKE) $(build)=arch/mips/lasat/image \
$(bootvars-y) $@
endif
#
# Some machines like the Indy need 32-bit ELF binaries for booting purposes.
# Other need ECOFF, so we build a 32-bit ELF binary for them which we then
# convert to ECOFF using elf2ecoff.
#
quiet_cmd_32 = OBJCOPY $@
cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
vmlinux.32: vmlinux
$(call cmd,32)
#
# The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
# ELF files from 32-bit files by conversion.
#
quiet_cmd_64 = OBJCOPY $@
cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
vmlinux.64: vmlinux
$(call cmd,64)
all: $(all-y)
# boot
$(boot-y): $(vmlinux-32) FORCE
$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
$(bootvars-y) arch/mips/boot/$@
ifdef CONFIG_SYS_SUPPORTS_ZBOOT
# boot/compressed
$(bootz-y): $(vmlinux-32) FORCE
$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
$(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
else
vmlinuz: FORCE
@echo ' CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
/bin/false
endif
CLEAN_FILES += vmlinux.32 vmlinux.64
# device-trees
core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/
%.dtb %.dtb.S %.dtb.o: | scripts
$(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@
PHONY += dtbs
dtbs: scripts
$(Q)$(MAKE) $(build)=arch/mips/boot/dts
PHONY += dtbs_install
dtbs_install:
$(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts
archprepare:
ifdef CONFIG_MIPS32_N32
@$(kecho) ' Checking missing-syscalls for N32'
$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
endif
ifdef CONFIG_MIPS32_O32
@$(kecho) ' Checking missing-syscalls for O32'
$(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
endif
install:
$(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
ifdef CONFIG_SYS_SUPPORTS_ZBOOT
$(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
endif
$(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
$(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
archclean:
$(Q)$(MAKE) $(clean)=arch/mips/boot
$(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
$(Q)$(MAKE) $(clean)=arch/mips/boot/tools
$(Q)$(MAKE) $(clean)=arch/mips/lasat
define archhelp
echo ' install - install kernel into $(INSTALL_PATH)'
echo ' vmlinux.ecoff - ECOFF boot image'
echo ' vmlinux.bin - Raw binary boot image'
echo ' vmlinux.srec - SREC boot image'
echo ' vmlinux.32 - 64-bit boot image wrapped in 32bits (IP22/IP32)'
echo ' vmlinuz - Compressed boot(zboot) image'
echo ' vmlinuz.ecoff - ECOFF zboot image'
echo ' vmlinuz.bin - Raw binary zboot image'
echo ' vmlinuz.srec - SREC zboot image'
echo ' uImage - U-Boot image'
echo ' uImage.bin - U-Boot image (uncompressed)'
echo ' uImage.bz2 - U-Boot image (bz2)'
echo ' uImage.gz - U-Boot image (gzip)'
echo ' uImage.lzma - U-Boot image (lzma)'
echo ' uImage.lzo - U-Boot image (lzo)'
echo ' uzImage.bin - U-Boot image (self-extracting)'
echo ' dtbs - Device-tree blobs for enabled boards'
echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)'
echo
echo ' These will be default as appropriate for a configured platform.'
echo
echo ' If you are targeting a system supported by generic kernels you may'
echo ' configure the kernel for a given architecture target like so:'
echo
echo ' {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
echo
echo ' Otherwise, the following default configurations are available:'
endef
generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
generic_defconfigs :=
#
# If the user generates a generic kernel configuration without specifying a
# list of boards to include the config fragments for, default to including all
# available board config fragments.
#
ifeq ($(BOARDS),)
BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
endif
#
# Generic kernel configurations which merge generic_defconfig with the
# appropriate config fragments from arch/mips/configs/generic/, resulting in
# the ability to easily configure the kernel for a given architecture,
# endianness & set of boards without duplicating the needed configuration in
# hundreds of defconfig files.
#
define gen_generic_defconfigs
$(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
target := $(bits)$(rev)$(filter el,$(endian))_defconfig
generic_defconfigs += $$(target)
$$(target): $(generic_config_dir)/$(bits)$(rev).config
$$(target): $(generic_config_dir)/$(endian).config
)))
endef
$(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
$(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
.PHONY: $(generic_defconfigs)
$(generic_defconfigs):
$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
grep -Ev '^#'
$(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
$(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
$(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
"$(origin BOARDS)" $(BOARDS)
MIPS: generic: fix out-of-tree defconfig target builds When specifying a generic defconfig target with O=... option set, make is invoked in the output location before a target makefile wrapper is created. Ensure that the correct makefile is used by specifying the kernel source makefile during make invocation. This fixes the either of the following errors: $ make sead3_defoncifg ARCH=mips O=test make[1]: Entering directory '/mnt/ssd/MIPS/linux-next/test' make[2]: *** No rule to make target '32r2el_defconfig'. Stop. arch/mips/Makefile:506: recipe for target 'sead3_defconfig' failed make[1]: *** [sead3_defconfig] Error 2 make[1]: Leaving directory '/mnt/ssd/MIPS/linux-next/test' Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 $ make 32r2el_defconfig ARCH=mips O=test make[1]: Entering directory '/mnt/ssd/MIPS/linux-next/test' Using ../arch/mips/configs/generic_defconfig as base Merging ../arch/mips/configs/generic/32r2.config Merging ../arch/mips/configs/generic/el.config Merging ../arch/mips/configs/generic/board-sead-3.config ! ! merged configuration written to .config (needs make) ! make[2]: *** No rule to make target 'olddefconfig'. Stop. arch/mips/Makefile:489: recipe for target '32r2el_defconfig' failed make[1]: *** [32r2el_defconfig] Error 2 make[1]: Leaving directory '/mnt/ssd/MIPS/linux-next/test' Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Fixes: eed0eabd12ef ('MIPS: generic: Introduce generic DT-based board support') Fixes: 3f5f0a4475e1 ('MIPS: generic: Convert SEAD-3 to a generic board') Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15464/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-03-13 14:57:14 +00:00
$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
#
# Prevent generic merge_config rules attempting to merge single fragments
#
$(generic_config_dir)/%.config: ;
#
# Prevent direct use of generic_defconfig, which is intended to be used as the
# basis of the various ISA-specific targets generated above.
#
.PHONY: generic_defconfig
generic_defconfig:
$(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
$(Q)echo "used via an ISA-specific target from the following list:"
$(Q)echo
$(Q)for cfg in $(generic_defconfigs); do echo " $${cfg}"; done
$(Q)echo
$(Q)false
#
# Legacy defconfig compatibility - these targets used to be real defconfigs but
# now that the boards have been converted to use the generic kernel they are
# wrappers around the generic rules above.
#
.PHONY: sead3_defconfig
sead3_defconfig:
MIPS: generic: fix out-of-tree defconfig target builds When specifying a generic defconfig target with O=... option set, make is invoked in the output location before a target makefile wrapper is created. Ensure that the correct makefile is used by specifying the kernel source makefile during make invocation. This fixes the either of the following errors: $ make sead3_defoncifg ARCH=mips O=test make[1]: Entering directory '/mnt/ssd/MIPS/linux-next/test' make[2]: *** No rule to make target '32r2el_defconfig'. Stop. arch/mips/Makefile:506: recipe for target 'sead3_defconfig' failed make[1]: *** [sead3_defconfig] Error 2 make[1]: Leaving directory '/mnt/ssd/MIPS/linux-next/test' Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 $ make 32r2el_defconfig ARCH=mips O=test make[1]: Entering directory '/mnt/ssd/MIPS/linux-next/test' Using ../arch/mips/configs/generic_defconfig as base Merging ../arch/mips/configs/generic/32r2.config Merging ../arch/mips/configs/generic/el.config Merging ../arch/mips/configs/generic/board-sead-3.config ! ! merged configuration written to .config (needs make) ! make[2]: *** No rule to make target 'olddefconfig'. Stop. arch/mips/Makefile:489: recipe for target '32r2el_defconfig' failed make[1]: *** [32r2el_defconfig] Error 2 make[1]: Leaving directory '/mnt/ssd/MIPS/linux-next/test' Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Fixes: eed0eabd12ef ('MIPS: generic: Introduce generic DT-based board support') Fixes: 3f5f0a4475e1 ('MIPS: generic: Convert SEAD-3 to a generic board') Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15464/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-03-13 14:57:14 +00:00
$(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=sead-3
.PHONY: sead3micro_defconfig
sead3micro_defconfig:
MIPS: generic: fix out-of-tree defconfig target builds When specifying a generic defconfig target with O=... option set, make is invoked in the output location before a target makefile wrapper is created. Ensure that the correct makefile is used by specifying the kernel source makefile during make invocation. This fixes the either of the following errors: $ make sead3_defoncifg ARCH=mips O=test make[1]: Entering directory '/mnt/ssd/MIPS/linux-next/test' make[2]: *** No rule to make target '32r2el_defconfig'. Stop. arch/mips/Makefile:506: recipe for target 'sead3_defconfig' failed make[1]: *** [sead3_defconfig] Error 2 make[1]: Leaving directory '/mnt/ssd/MIPS/linux-next/test' Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 $ make 32r2el_defconfig ARCH=mips O=test make[1]: Entering directory '/mnt/ssd/MIPS/linux-next/test' Using ../arch/mips/configs/generic_defconfig as base Merging ../arch/mips/configs/generic/32r2.config Merging ../arch/mips/configs/generic/el.config Merging ../arch/mips/configs/generic/board-sead-3.config ! ! merged configuration written to .config (needs make) ! make[2]: *** No rule to make target 'olddefconfig'. Stop. arch/mips/Makefile:489: recipe for target '32r2el_defconfig' failed make[1]: *** [32r2el_defconfig] Error 2 make[1]: Leaving directory '/mnt/ssd/MIPS/linux-next/test' Makefile:152: recipe for target 'sub-make' failed make: *** [sub-make] Error 2 Fixes: eed0eabd12ef ('MIPS: generic: Introduce generic DT-based board support') Fixes: 3f5f0a4475e1 ('MIPS: generic: Convert SEAD-3 to a generic board') Signed-off-by: Marcin Nowakowski <marcin.nowakowski@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/15464/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-03-13 14:57:14 +00:00
$(Q)$(MAKE) -f $(srctree)/Makefile micro32r2el_defconfig BOARDS=sead-3
.PHONY: xilfpga_defconfig
xilfpga_defconfig:
$(Q)$(MAKE) -f $(srctree)/Makefile 32r2el_defconfig BOARDS=xilfpga