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Linux/arch/m68k/Makefile

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Diff markup

Differences between /arch/m68k/Makefile (Architecture m68k) and /arch/mips/Makefile (Architecture mips)


  1 #                                                   1 #
  2 # m68k/Makefile                                !!   2 # This file is subject to the terms and conditions of the GNU General Public
                                                   >>   3 # License.  See the file "COPYING" in the main directory of this archive
                                                   >>   4 # for more details.
                                                   >>   5 #
                                                   >>   6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
                                                   >>   7 # DECStation modifications by Paul M. Antoine, 1996
                                                   >>   8 # Copyright (C) 2002, 2003, 2004  Maciej W. Rozycki
  3 #                                                   9 #
  4 # This file is included by the global makefile     10 # This file is included by the global makefile so that you can add your own
  5 # architecture-specific flags and dependencies     11 # architecture-specific flags and dependencies.
  6 #                                                  12 #
  7 # This file is subject to the terms and condit !!  13 
  8 # License.  See the file "COPYING" in the main !!  14 archscripts: scripts_basic
  9 # for more details.                            !!  15         $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
                                                   >>  16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y)
                                                   >>  17         $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check
                                                   >>  18 endif
                                                   >>  19         $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
                                                   >>  20 
                                                   >>  21 KBUILD_DEFCONFIG := 32r2el_defconfig
                                                   >>  22 KBUILD_DTBS      := dtbs
                                                   >>  23 
 10 #                                                  24 #
 11 # Copyright (C) 1994 by Hamish Macdonald       !!  25 # Select the object file format to substitute into the linker script.
 12 # Copyright (C) 2002,2011 Greg Ungerer <gerg@sn << 
 13 #                                                  26 #
                                                   >>  27 ifdef CONFIG_CPU_LITTLE_ENDIAN
                                                   >>  28 32bit-tool-archpref     = mipsel
                                                   >>  29 64bit-tool-archpref     = mips64el
                                                   >>  30 32bit-bfd               = elf32-tradlittlemips
                                                   >>  31 64bit-bfd               = elf64-tradlittlemips
                                                   >>  32 32bit-emul              = elf32ltsmip
                                                   >>  33 64bit-emul              = elf64ltsmip
                                                   >>  34 else
                                                   >>  35 32bit-tool-archpref     = mips
                                                   >>  36 64bit-tool-archpref     = mips64
                                                   >>  37 32bit-bfd               = elf32-tradbigmips
                                                   >>  38 64bit-bfd               = elf64-tradbigmips
                                                   >>  39 32bit-emul              = elf32btsmip
                                                   >>  40 64bit-emul              = elf64btsmip
                                                   >>  41 endif
 14                                                    42 
 15 KBUILD_DEFCONFIG := multi_defconfig            !!  43 ifdef CONFIG_32BIT
                                                   >>  44 tool-archpref           = $(32bit-tool-archpref)
                                                   >>  45 UTS_MACHINE             := mips
                                                   >>  46 endif
                                                   >>  47 ifdef CONFIG_64BIT
                                                   >>  48 tool-archpref           = $(64bit-tool-archpref)
                                                   >>  49 UTS_MACHINE             := mips64
                                                   >>  50 endif
 16                                                    51 
 17 ifdef cross_compiling                              52 ifdef cross_compiling
 18     ifeq ($(CROSS_COMPILE),)                   !!  53   ifeq ($(CROSS_COMPILE),)
 19                 CROSS_COMPILE := $(call cc-cro !!  54     CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux-  $(tool-archpref)-linux-gnu-  $(tool-archpref)-unknown-linux-gnu-)
 20                         m68k-linux-gnu- m68k-l !!  55   endif
                                                   >>  56 endif
                                                   >>  57 
                                                   >>  58 ifdef CONFIG_FUNCTION_GRAPH_TRACER
                                                   >>  59   ifndef KBUILD_MCOUNT_RA_ADDRESS
                                                   >>  60     ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
                                                   >>  61       cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
 21     endif                                          62     endif
                                                   >>  63   endif
                                                   >>  64 endif
                                                   >>  65 cflags-y += $(call cc-option, -mno-check-zero-division)
                                                   >>  66 
                                                   >>  67 ifdef CONFIG_32BIT
                                                   >>  68 ld-emul                 = $(32bit-emul)
                                                   >>  69 vmlinux-32              = vmlinux
                                                   >>  70 vmlinux-64              = vmlinux.64
                                                   >>  71 
                                                   >>  72 cflags-y                += -mabi=32
                                                   >>  73 endif
                                                   >>  74 
                                                   >>  75 ifdef CONFIG_64BIT
                                                   >>  76 ld-emul                 = $(64bit-emul)
                                                   >>  77 vmlinux-32              = vmlinux.32
                                                   >>  78 vmlinux-64              = vmlinux
                                                   >>  79 
                                                   >>  80 cflags-y                += -mabi=64
                                                   >>  81 endif
                                                   >>  82 
                                                   >>  83 all-$(CONFIG_BOOT_ELF32)        := $(vmlinux-32)
                                                   >>  84 all-$(CONFIG_BOOT_ELF64)        := $(vmlinux-64)
                                                   >>  85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
                                                   >>  86 
                                                   >>  87 #
                                                   >>  88 # GCC uses -G 0 -mabicalls -fpic as default.  We don't want PIC in the kernel
                                                   >>  89 # code since it only slows down the whole thing.  At some point we might make
                                                   >>  90 # use of global pointer optimizations but their use of $28 conflicts with
                                                   >>  91 # the current pointer optimization.
                                                   >>  92 #
                                                   >>  93 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
                                                   >>  94 # machines may also.  Since BFD is incredibly buggy with respect to
                                                   >>  95 # crossformat linking we rely on the elf2ecoff tool for format conversion.
                                                   >>  96 #
                                                   >>  97 cflags-y                        += -G 0 -mno-abicalls -fno-pic -pipe
                                                   >>  98 cflags-y                        += -msoft-float -Wa,-msoft-float
                                                   >>  99 LDFLAGS_vmlinux                 += -G 0 -static -n -nostdlib
                                                   >> 100 KBUILD_AFLAGS_MODULE            += -mlong-calls
                                                   >> 101 KBUILD_CFLAGS_MODULE            += -mlong-calls
                                                   >> 102 
                                                   >> 103 ifeq ($(CONFIG_RELOCATABLE),y)
                                                   >> 104 LDFLAGS_vmlinux                 += --emit-relocs
 22 endif                                             105 endif
 23                                                   106 
                                                   >> 107 cflags-y += -ffreestanding
                                                   >> 108 
                                                   >> 109 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -EB
                                                   >> 110 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -EL
                                                   >> 111 
                                                   >> 112 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
                                                   >> 113                                    -fno-omit-frame-pointer
                                                   >> 114 
                                                   >> 115 # Some distribution-specific toolchains might pass the -fstack-check
                                                   >> 116 # option during the build, which adds a simple stack-probe at the beginning
                                                   >> 117 # of every function.  This stack probe is to ensure that there is enough
                                                   >> 118 # stack space, else a SEGV is generated.  This is not desirable for MIPS
                                                   >> 119 # as kernel stacks are small, placed in unmapped virtual memory, and do not
                                                   >> 120 # grow when overflowed.  Especially on SGI IP27 platforms, this check will
                                                   >> 121 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
                                                   >> 122 #
                                                   >> 123 # In disassembly, this stack probe appears at the top of a function as:
                                                   >> 124 #    sd         zero,<offset>(sp)
                                                   >> 125 # Where <offset> is a negative value.
                                                   >> 126 #
                                                   >> 127 cflags-y += -fno-stack-check
                                                   >> 128 
                                                   >> 129 # binutils from v2.35 when built with --enable-mips-fix-loongson3-llsc=yes,
                                                   >> 130 # supports an -mfix-loongson3-llsc flag which emits a sync prior to each ll
                                                   >> 131 # instruction to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h
                                                   >> 132 # for a description).
                                                   >> 133 #
                                                   >> 134 # We disable this in order to prevent the assembler meddling with the
                                                   >> 135 # instruction that labels refer to, ie. if we label an ll instruction:
                                                   >> 136 #
                                                   >> 137 # 1: ll v0, 0(a0)
                                                   >> 138 #
                                                   >> 139 # ...then with the assembler fix applied the label may actually point at a sync
                                                   >> 140 # instruction inserted by the assembler, and if we were using the label in an
                                                   >> 141 # exception table the table would no longer contain the address of the ll
                                                   >> 142 # instruction.
 24 #                                                 143 #
 25 #       Enable processor type. Ordering of the !! 144 # Avoid this by explicitly disabling that assembler behaviour.
 26 #       use the minimum processor type of the  !! 145 #
 27 #       for 680x0 will only allow use of the - !! 146 cflags-y += $(call cc-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
 28 #       680x0 type is specified - and no optio << 
 29 #       68020. The other m68k/ColdFire types a << 
 30 #       compiler cpu type flag.                << 
 31 #                                              << 
 32 ifndef CONFIG_M68040                           << 
 33 cpuflags-$(CONFIG_M68060)       = -m68060      << 
 34 endif                                          << 
 35 ifndef CONFIG_M68060                           << 
 36 cpuflags-$(CONFIG_M68040)       = -m68040      << 
 37 endif                                          << 
 38 cpuflags-$(CONFIG_M68030)       =              << 
 39 cpuflags-$(CONFIG_M68020)       =              << 
 40 cpuflags-$(CONFIG_M68000)       = -m68000      << 
 41 cpuflags-$(CONFIG_M5441x)       = $(call cc-op << 
 42 cpuflags-$(CONFIG_M54xx)        = $(call cc-op << 
 43 cpuflags-$(CONFIG_M5407)        = $(call cc-op << 
 44 cpuflags-$(CONFIG_M532x)        = $(call cc-op << 
 45 cpuflags-$(CONFIG_M537x)        = $(call cc-op << 
 46 cpuflags-$(CONFIG_M5307)        = $(call cc-op << 
 47 cpuflags-$(CONFIG_M528x)        = $(call cc-op << 
 48 cpuflags-$(CONFIG_M5275)        = $(call cc-op << 
 49 cpuflags-$(CONFIG_M5272)        = $(call cc-op << 
 50 cpuflags-$(CONFIG_M5271)        = $(call cc-op << 
 51 cpuflags-$(CONFIG_M523x)        = $(call cc-op << 
 52 cpuflags-$(CONFIG_M525x)        = $(call cc-op << 
 53 cpuflags-$(CONFIG_M5249)        = $(call cc-op << 
 54 cpuflags-$(CONFIG_M520x)        = $(call cc-op << 
 55 cpuflags-$(CONFIG_M5206e)       = $(call cc-op << 
 56 cpuflags-$(CONFIG_M5206)        = $(call cc-op << 
 57                                                << 
 58 # Evaluate tune cc-option calls now            << 
 59 cpuflags-y := $(cpuflags-y)                    << 
 60                                                   147 
 61 KBUILD_AFLAGS += $(cpuflags-y)                 !! 148 #
 62 KBUILD_CFLAGS += $(cpuflags-y)                 !! 149 # CPU-dependent compiler/assembler options for optimization.
                                                   >> 150 #
                                                   >> 151 cflags-$(CONFIG_CPU_R3000)      += $(call cc-option,-march=r3000,-march=mips1)
                                                   >> 152 cflags-$(CONFIG_CPU_R4300)      += $(call cc-option,-march=r4300,-march=mips3) -Wa,--trap
                                                   >> 153 cflags-$(CONFIG_CPU_R4X00)      += $(call cc-option,-march=r4600,-march=mips3) -Wa,--trap
                                                   >> 154 cflags-$(CONFIG_CPU_TX49XX)     += $(call cc-option,-march=r4600,-march=mips3) -Wa,--trap
                                                   >> 155 cflags-$(CONFIG_CPU_MIPS32_R1)  += -march=mips32 -Wa,--trap
                                                   >> 156 cflags-$(CONFIG_CPU_MIPS32_R2)  += -march=mips32r2 -Wa,--trap
                                                   >> 157 cflags-$(CONFIG_CPU_MIPS32_R5)  += -march=mips32r5 -Wa,--trap -modd-spreg
                                                   >> 158 cflags-$(CONFIG_CPU_MIPS32_R6)  += -march=mips32r6 -Wa,--trap -modd-spreg
                                                   >> 159 cflags-$(CONFIG_CPU_MIPS64_R1)  += -march=mips64 -Wa,--trap
                                                   >> 160 cflags-$(CONFIG_CPU_MIPS64_R2)  += -march=mips64r2 -Wa,--trap
                                                   >> 161 cflags-$(CONFIG_CPU_MIPS64_R5)  += -march=mips64r5 -Wa,--trap
                                                   >> 162 cflags-$(CONFIG_CPU_MIPS64_R6)  += -march=mips64r6 -Wa,--trap
                                                   >> 163 cflags-$(CONFIG_CPU_P5600)      += $(call cc-option,-march=p5600,-march=mips32r5) \
                                                   >> 164                         -Wa,--trap -modd-spreg
                                                   >> 165 cflags-$(CONFIG_CPU_R5000)      += $(call cc-option,-march=r5000,-march=mips4) \
                                                   >> 166                         -Wa,--trap
                                                   >> 167 cflags-$(CONFIG_CPU_R5500)      += $(call cc-option,-march=r5500,-march=mips4) \
                                                   >> 168                         -Wa,--trap
                                                   >> 169 cflags-$(CONFIG_CPU_NEVADA)     += $(call cc-option,-march=rm5200,-march=mips4) \
                                                   >> 170                         -Wa,--trap
                                                   >> 171 cflags-$(CONFIG_CPU_RM7000)     += $(call cc-option,-march=rm7000,-march=mips4) \
                                                   >> 172                         -Wa,--trap
                                                   >> 173 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-march=sb1,-march=mips64) \
                                                   >> 174                         -Wa,--trap
                                                   >> 175 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-mno-mdmx)
                                                   >> 176 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-mno-mips3d)
                                                   >> 177 cflags-$(CONFIG_CPU_R10000)     += $(call cc-option,-march=r10000,-march=mips4) \
                                                   >> 178                         -Wa,--trap
                                                   >> 179 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -march=octeon -Wa,--trap
                                                   >> 180 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
                                                   >> 181 cflags-$(CONFIG_CPU_BMIPS)      += -march=mips32 -Wa,--trap
                                                   >> 182 
                                                   >> 183 cflags-$(CONFIG_CPU_LOONGSON2E) += \
                                                   >> 184                         $(call cc-option,-march=loongson2e,-march=mips3) -Wa,--trap
                                                   >> 185 cflags-$(CONFIG_CPU_LOONGSON2F) += \
                                                   >> 186                         $(call cc-option,-march=loongson2f,-march=mips3) -Wa,--trap
                                                   >> 187 # Some -march= flags enable MMI instructions, and GCC complains about that
                                                   >> 188 # support being enabled alongside -msoft-float. Thus explicitly disable MMI.
                                                   >> 189 cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc-option,-mno-loongson-mmi)
                                                   >> 190 cflags-$(CONFIG_CPU_LOONGSON64) += \
                                                   >> 191                         $(call cc-option,-march=loongson3a,-march=mips64r2) -Wa,--trap
                                                   >> 192 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-option,-mno-loongson-mmi)
                                                   >> 193 
                                                   >> 194 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)  += $(call cc-option,-mfix-r4000,)
                                                   >> 195 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)  += $(call cc-option,-mfix-r4400,)
                                                   >> 196 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)  += $(call cc-option,-mno-daddi,)
                                                   >> 197 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS
                                                   >> 198 cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa,-mfix-loongson2f-nop
                                                   >> 199 cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa,-mfix-loongson2f-jump
                                                   >> 200 endif
 63                                                   201 
 64 KBUILD_CFLAGS += -pipe -ffreestanding          !! 202 #
                                                   >> 203 # Some versions of binutils, not currently mainline as of 2019/02/04, support
                                                   >> 204 # an -mfix-loongson3-llsc flag which emits a sync prior to each ll instruction
                                                   >> 205 # to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h for a
                                                   >> 206 # description).
                                                   >> 207 #
                                                   >> 208 # We disable this in order to prevent the assembler meddling with the
                                                   >> 209 # instruction that labels refer to, ie. if we label an ll instruction:
                                                   >> 210 #
                                                   >> 211 # 1: ll v0, 0(a0)
                                                   >> 212 #
                                                   >> 213 # ...then with the assembler fix applied the label may actually point at a sync
                                                   >> 214 # instruction inserted by the assembler, and if we were using the label in an
                                                   >> 215 # exception table the table would no longer contain the address of the ll
                                                   >> 216 # instruction.
                                                   >> 217 #
                                                   >> 218 # Avoid this by explicitly disabling that assembler behaviour. If upstream
                                                   >> 219 # binutils does not merge support for the flag then we can revisit & remove
                                                   >> 220 # this later - for now it ensures vendor toolchains don't cause problems.
                                                   >> 221 #
                                                   >> 222 cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
 65                                                   223 
 66 ifdef CONFIG_MMU                               !! 224 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
 67 KBUILD_CFLAGS += -ffixed-a2                    !! 225 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
                                                   >> 226 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
                                                   >> 227 # similar directives in the kernel will spam the build logs with the following warnings:
                                                   >> 228 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
                                                   >> 229 # or
                                                   >> 230 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
                                                   >> 231 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
                                                   >> 232 # been fixed properly.
                                                   >> 233 mips-cflags                             := $(cflags-y)
                                                   >> 234 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
                                                   >> 235 smartmips-ase                           := $(call cc-option-yn,$(mips-cflags) -msmartmips)
                                                   >> 236 cflags-$(smartmips-ase)                 += -msmartmips -Wa,--no-warn
                                                   >> 237 endif
                                                   >> 238 ifeq ($(CONFIG_CPU_MICROMIPS),y)
                                                   >> 239 micromips-ase                           := $(call cc-option-yn,$(mips-cflags) -mmicromips)
                                                   >> 240 cflags-$(micromips-ase)                 += -mmicromips
                                                   >> 241 endif
                                                   >> 242 ifeq ($(CONFIG_CPU_HAS_MSA),y)
                                                   >> 243 toolchain-msa                           := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
                                                   >> 244 cflags-$(toolchain-msa)                 += -DTOOLCHAIN_SUPPORTS_MSA
                                                   >> 245 endif
                                                   >> 246 toolchain-virt                          := $(call cc-option-yn,$(mips-cflags) -mvirt)
                                                   >> 247 cflags-$(toolchain-virt)                += -DTOOLCHAIN_SUPPORTS_VIRT
                                                   >> 248 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
                                                   >> 249 # only warns
                                                   >> 250 xpa-cflags-y                            := $(mips-cflags)
                                                   >> 251 xpa-cflags-$(micromips-ase)             += -mmicromips -Wa$(comma)-fatal-warnings
                                                   >> 252 toolchain-xpa                           := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
                                                   >> 253 cflags-$(toolchain-xpa)                 += -DTOOLCHAIN_SUPPORTS_XPA
                                                   >> 254 toolchain-crc                           := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
                                                   >> 255 cflags-$(toolchain-crc)                 += -DTOOLCHAIN_SUPPORTS_CRC
                                                   >> 256 toolchain-dsp                           := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
                                                   >> 257 cflags-$(toolchain-dsp)                 += -DTOOLCHAIN_SUPPORTS_DSP
                                                   >> 258 toolchain-ginv                          := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv)
                                                   >> 259 cflags-$(toolchain-ginv)                += -DTOOLCHAIN_SUPPORTS_GINV
                                                   >> 260 
                                                   >> 261 #
                                                   >> 262 # Firmware support
                                                   >> 263 #
                                                   >> 264 libs-$(CONFIG_FW_ARC)           += arch/mips/fw/arc/
                                                   >> 265 libs-$(CONFIG_FW_CFE)           += arch/mips/fw/cfe/
                                                   >> 266 libs-$(CONFIG_FW_SNIPROM)       += arch/mips/fw/sni/
                                                   >> 267 libs-y                          += arch/mips/fw/lib/
                                                   >> 268 
                                                   >> 269 #
                                                   >> 270 # Kernel compression
                                                   >> 271 #
                                                   >> 272 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
                                                   >> 273 COMPRESSION_FNAME               = vmlinuz
 68 else                                              274 else
 69 # we can use a m68k-linux-gcc toolchain with t !! 275 COMPRESSION_FNAME               = vmlinux
 70 KBUILD_CPPFLAGS += -DUTS_SYSNAME=\"uClinux\"   << 
 71 KBUILD_CPPFLAGS += -D__uClinux__               << 
 72 endif                                             276 endif
 73                                                   277 
 74 KBUILD_LDFLAGS := -m m68kelf                   !! 278 #
                                                   >> 279 # Board-dependent options and extra files
                                                   >> 280 #
                                                   >> 281 include $(srctree)/arch/mips/Kbuild.platforms
 75                                                   282 
 76 ifdef CONFIG_SUN3                              !! 283 ifdef CONFIG_PHYSICAL_START
 77 LDFLAGS_vmlinux = -N                           !! 284 load-y                                  = $(CONFIG_PHYSICAL_START)
 78 endif                                             285 endif
 79                                                   286 
 80 CHECKFLAGS += -D__mc68000__                    !! 287 entry-y                         = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
                                                   >> 288 cflags-y                        += -I$(srctree)/arch/mips/include/asm/mach-generic
                                                   >> 289 drivers-$(CONFIG_PCI)           += arch/mips/pci/
                                                   >> 290 
                                                   >> 291 #
                                                   >> 292 # Automatically detect the build format. By default we choose
                                                   >> 293 # the elf format according to the load address.
                                                   >> 294 # We can always force a build with a 64-bits symbol format by
                                                   >> 295 # passing 'KBUILD_SYM32=no' option to the make's command line.
                                                   >> 296 #
                                                   >> 297 ifdef CONFIG_64BIT
                                                   >> 298   ifndef KBUILD_SYM32
                                                   >> 299     ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
                                                   >> 300       KBUILD_SYM32 = $(call cc-option-yn, -msym32)
                                                   >> 301     endif
                                                   >> 302   endif
                                                   >> 303 
                                                   >> 304   ifeq ($(KBUILD_SYM32), y)
                                                   >> 305     cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD_64BIT_SYM32
                                                   >> 306   else
                                                   >> 307     ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
                                                   >> 308       $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
                                                   >> 309     endif
                                                   >> 310   endif
                                                   >> 311 endif
 81                                                   312 
                                                   >> 313 # When linking a 32-bit executable the LLVM linker cannot cope with a
                                                   >> 314 # 32-bit load address that has been sign-extended to 64 bits.  Simply
                                                   >> 315 # remove the upper 32 bits then, as it is safe to do so with other
                                                   >> 316 # linkers.
                                                   >> 317 ifdef CONFIG_64BIT
                                                   >> 318         load-ld                 = $(load-y)
                                                   >> 319 else
                                                   >> 320         load-ld                 = $(subst 0xffffffff,0x,$(load-y))
                                                   >> 321 endif
 82                                                   322 
 83 ifdef CONFIG_KGDB                              !! 323 KBUILD_AFLAGS   += $(cflags-y)
 84 # If configured for kgdb support, include debu !! 324 KBUILD_CFLAGS   += $(cflags-y)
 85 # frame pointer                                !! 325 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
 86 KBUILD_CFLAGS := $(subst -fomit-frame-pointer, !! 326 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
                                                   >> 327 
                                                   >> 328 bootvars-y      = VMLINUX_LOAD_ADDRESS=$(load-y) \
                                                   >> 329                   LINKER_LOAD_ADDRESS=$(load-ld) \
                                                   >> 330                   VMLINUX_ENTRY_ADDRESS=$(entry-y) \
                                                   >> 331                   PLATFORM="$(platform-y)" \
                                                   >> 332                   ITS_INPUTS="$(its-y)"
                                                   >> 333 ifdef CONFIG_32BIT
                                                   >> 334 bootvars-y      += ADDR_BITS=32
                                                   >> 335 endif
                                                   >> 336 ifdef CONFIG_64BIT
                                                   >> 337 bootvars-y      += ADDR_BITS=64
 87 endif                                             338 endif
 88                                                   339 
 89 libs-y                          += arch/m68k/l !! 340 # This is required to get dwarf unwinding tables into .debug_frame
                                                   >> 341 # instead of .eh_frame so we don't discard them.
                                                   >> 342 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
                                                   >> 343 
                                                   >> 344 KBUILD_LDFLAGS          += -m $(ld-emul)
                                                   >> 345 
                                                   >> 346 ifdef need-compiler
                                                   >> 347 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
                                                   >> 348         grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
                                                   >> 349         sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
                                                   >> 350 endif
 90                                                   351 
                                                   >> 352 OBJCOPYFLAGS            += --remove-section=.reginfo
 91                                                   353 
 92 all:    zImage                                 !! 354 libs-y                  += arch/mips/lib/
                                                   >> 355 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
 93                                                   356 
 94 lilo:   vmlinux                                !! 357 drivers-y                       += arch/mips/crypto/
 95         if [ -f $(INSTALL_PATH)/vmlinux ]; the << 
 96         if [ -f $(INSTALL_PATH)/System.map ];  << 
 97         cat vmlinux > $(INSTALL_PATH)/vmlinux  << 
 98         cp System.map $(INSTALL_PATH)/System.m << 
 99         if [ -x /sbin/lilo ]; then /sbin/lilo; << 
100                                                   358 
101 zImage compressed: vmlinux.gz                  !! 359 # suspend and hibernation support
                                                   >> 360 drivers-$(CONFIG_PM)    += arch/mips/power/
                                                   >> 361 
                                                   >> 362 # boot image targets (arch/mips/boot/)
                                                   >> 363 boot-y                  := vmlinux.bin
                                                   >> 364 boot-y                  += vmlinux.ecoff
                                                   >> 365 boot-y                  += vmlinux.srec
                                                   >> 366 boot-y                  += uImage
                                                   >> 367 boot-y                  += uImage.bin
                                                   >> 368 boot-y                  += uImage.bz2
                                                   >> 369 boot-y                  += uImage.gz
                                                   >> 370 boot-y                  += uImage.lzma
                                                   >> 371 boot-y                  += uImage.lzo
                                                   >> 372 boot-y                  += vmlinux.itb
                                                   >> 373 boot-y                  += vmlinux.gz.itb
                                                   >> 374 boot-y                  += vmlinux.bz2.itb
                                                   >> 375 boot-y                  += vmlinux.lzma.itb
                                                   >> 376 boot-y                  += vmlinux.lzo.itb
                                                   >> 377 
                                                   >> 378 # compressed boot image targets (arch/mips/boot/compressed/)
                                                   >> 379 bootz-y                 := vmlinuz
                                                   >> 380 bootz-y                 += vmlinuz.bin
                                                   >> 381 bootz-y                 += vmlinuz.ecoff
                                                   >> 382 bootz-y                 += vmlinuz.srec
                                                   >> 383 bootz-y                 += uzImage.bin
                                                   >> 384 bootz-y                 += vmlinuz.itb
102                                                   385 
103 vmlinux.gz: vmlinux                            !! 386 #
                                                   >> 387 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
                                                   >> 388 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
                                                   >> 389 # convert to ECOFF using elf2ecoff.
                                                   >> 390 #
                                                   >> 391 quiet_cmd_32 = OBJCOPY $@
                                                   >> 392         cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
                                                   >> 393 vmlinux.32: vmlinux
                                                   >> 394         $(call cmd,32)
104                                                   395 
105 ifndef CONFIG_KGDB                             !! 396 #
106         cp vmlinux vmlinux.tmp                 !! 397 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
107         $(STRIP) vmlinux.tmp                   !! 398 # ELF files from 32-bit files by conversion.
108         $(KGZIP) -9c vmlinux.tmp >vmlinux.gz   !! 399 #
109         rm vmlinux.tmp                         !! 400 quiet_cmd_64 = OBJCOPY $@
                                                   >> 401         cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
                                                   >> 402 vmlinux.64: vmlinux
                                                   >> 403         $(call cmd,64)
                                                   >> 404 
                                                   >> 405 all:    $(all-y) $(KBUILD_DTBS)
                                                   >> 406 
                                                   >> 407 # boot
                                                   >> 408 $(boot-y): $(vmlinux-32) FORCE
                                                   >> 409         $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
                                                   >> 410                 $(bootvars-y) arch/mips/boot/$@
                                                   >> 411 
                                                   >> 412 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
                                                   >> 413 # boot/compressed
                                                   >> 414 $(bootz-y): $(vmlinux-32) FORCE
                                                   >> 415         $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
                                                   >> 416                 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@
110 else                                              417 else
111         $(KGZIP) -9c vmlinux >vmlinux.gz       !! 418 vmlinuz: FORCE
                                                   >> 419         @echo '   CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
                                                   >> 420         /bin/false
112 endif                                             421 endif
113                                                   422 
114 bzImage: vmlinux.bz2                           << 
115                                                   423 
116 vmlinux.bz2: vmlinux                           !! 424 CLEAN_FILES += vmlinux.32 vmlinux.64
117                                                   425 
118 ifndef CONFIG_KGDB                             !! 426 # device-trees
119         cp vmlinux vmlinux.tmp                 !! 427 core-y += arch/mips/boot/dts/
120         $(STRIP) vmlinux.tmp                   !! 428 
121         $(KBZIP2) -1c vmlinux.tmp >vmlinux.bz2 !! 429 archprepare:
122         rm vmlinux.tmp                         !! 430 ifdef CONFIG_MIPS32_N32
123 else                                           !! 431         @$(kecho) '  Checking missing-syscalls for N32'
124         $(KBZIP2) -1c vmlinux >vmlinux.bz2     !! 432         $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
                                                   >> 433 endif
                                                   >> 434 ifdef CONFIG_MIPS32_O32
                                                   >> 435         @$(kecho) '  Checking missing-syscalls for O32'
                                                   >> 436         $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
125 endif                                             437 endif
126                                                   438 
127 CLEAN_FILES += vmlinux.gz vmlinux.bz2          !! 439 install:
                                                   >> 440         $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
                                                   >> 441 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
                                                   >> 442         $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
                                                   >> 443 endif
                                                   >> 444         $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
                                                   >> 445         $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
128                                                   446 
129 archheaders:                                      447 archheaders:
130         $(Q)$(MAKE) $(build)=arch/m68k/kernel/ !! 448         $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
131                                                   449 
132 install: KBUILD_IMAGE := vmlinux.gz            !! 450 define archhelp
133 install:                                       !! 451         echo '  install              - install kernel into $(INSTALL_PATH)'
134         $(call cmd,install)                    !! 452         echo '  vmlinux.ecoff        - ECOFF boot image'
                                                   >> 453         echo '  vmlinux.bin          - Raw binary boot image'
                                                   >> 454         echo '  vmlinux.srec         - SREC boot image'
                                                   >> 455         echo '  vmlinux.32           - 64-bit boot image wrapped in 32bits (IP22/IP32)'
                                                   >> 456         echo '  vmlinuz              - Compressed boot(zboot) image'
                                                   >> 457         echo '  vmlinuz.ecoff        - ECOFF zboot image'
                                                   >> 458         echo '  vmlinuz.bin          - Raw binary zboot image'
                                                   >> 459         echo '  vmlinuz.srec         - SREC zboot image'
                                                   >> 460         echo '  uImage               - U-Boot image'
                                                   >> 461         echo '  uImage.bin           - U-Boot image (uncompressed)'
                                                   >> 462         echo '  uImage.bz2           - U-Boot image (bz2)'
                                                   >> 463         echo '  uImage.gz            - U-Boot image (gzip)'
                                                   >> 464         echo '  uImage.lzma          - U-Boot image (lzma)'
                                                   >> 465         echo '  uImage.lzo           - U-Boot image (lzo)'
                                                   >> 466         echo '  uzImage.bin          - U-Boot image (self-extracting)'
                                                   >> 467         echo
                                                   >> 468         echo '  These will be default as appropriate for a configured platform.'
                                                   >> 469         echo
                                                   >> 470         echo '  If you are targeting a system supported by generic kernels you may'
                                                   >> 471         echo '  configure the kernel for a given architecture target like so:'
                                                   >> 472         echo
                                                   >> 473         echo '  {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
                                                   >> 474         echo
                                                   >> 475         echo '  Where BOARDS is some subset of the following:'
                                                   >> 476         for board in $(sort $(BOARDS)); do echo "    $${board}"; done
                                                   >> 477         echo
                                                   >> 478         echo '  Specifically the following generic default configurations are'
                                                   >> 479         echo '  supported:'
                                                   >> 480         echo
                                                   >> 481         $(foreach cfg,$(generic_defconfigs),
                                                   >> 482           printf "  %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
                                                   >> 483         echo
                                                   >> 484         echo '  The following legacy default configurations have been converted to'
                                                   >> 485         echo '  generic and can still be used:'
                                                   >> 486         echo
                                                   >> 487         $(foreach cfg,$(sort $(legacy_defconfigs)),
                                                   >> 488           printf "  %-24s - Build $($(cfg)-y)\n" $(cfg);)
                                                   >> 489         echo
                                                   >> 490         echo '  Otherwise, the following default configurations are available:'
                                                   >> 491 endef
                                                   >> 492 
                                                   >> 493 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
                                                   >> 494 generic_defconfigs :=
                                                   >> 495 
                                                   >> 496 #
                                                   >> 497 # If the user generates a generic kernel configuration without specifying a
                                                   >> 498 # list of boards to include the config fragments for, default to including all
                                                   >> 499 # available board config fragments.
                                                   >> 500 #
                                                   >> 501 ifeq ($(BOARDS),)
                                                   >> 502 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
                                                   >> 503 endif
                                                   >> 504 
                                                   >> 505 #
                                                   >> 506 # Generic kernel configurations which merge generic_defconfig with the
                                                   >> 507 # appropriate config fragments from arch/mips/configs/generic/, resulting in
                                                   >> 508 # the ability to easily configure the kernel for a given architecture,
                                                   >> 509 # endianness & set of boards without duplicating the needed configuration in
                                                   >> 510 # hundreds of defconfig files.
                                                   >> 511 #
                                                   >> 512 define gen_generic_defconfigs
                                                   >> 513 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
                                                   >> 514 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
                                                   >> 515 generic_defconfigs += $$(target)
                                                   >> 516 $$(target): $(generic_config_dir)/$(bits)$(rev).config
                                                   >> 517 $$(target): $(generic_config_dir)/$(endian).config
                                                   >> 518 )))
                                                   >> 519 endef
                                                   >> 520 
                                                   >> 521 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
                                                   >> 522 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
                                                   >> 523 
                                                   >> 524 define describe_generic_defconfig
                                                   >> 525 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
                                                   >> 526 endef
                                                   >> 527 
                                                   >> 528 .PHONY: $(generic_defconfigs)
                                                   >> 529 $(generic_defconfigs):
                                                   >> 530         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
                                                   >> 531                 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
                                                   >> 532                 grep -Ev '^#'
                                                   >> 533         $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
                                                   >> 534         $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
                                                   >> 535                 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
                                                   >> 536         $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
                                                   >> 537                 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
                                                   >> 538                 "$(origin BOARDS)" $(BOARDS)
                                                   >> 539         $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
                                                   >> 540 
                                                   >> 541 #
                                                   >> 542 # Prevent generic merge_config rules attempting to merge single fragments
                                                   >> 543 #
                                                   >> 544 $(generic_config_dir)/%.config: ;
                                                   >> 545 
                                                   >> 546 #
                                                   >> 547 # Prevent direct use of generic_defconfig, which is intended to be used as the
                                                   >> 548 # basis of the various ISA-specific targets generated above.
                                                   >> 549 #
                                                   >> 550 .PHONY: generic_defconfig
                                                   >> 551 generic_defconfig:
                                                   >> 552         $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
                                                   >> 553         $(Q)echo "used via an ISA-specific target from the following list:"
                                                   >> 554         $(Q)echo
                                                   >> 555         $(Q)for cfg in $(generic_defconfigs); do echo "  $${cfg}"; done
                                                   >> 556         $(Q)echo
                                                   >> 557         $(Q)false
                                                   >> 558 
                                                   >> 559 #
                                                   >> 560 # Legacy defconfig compatibility - these targets used to be real defconfigs but
                                                   >> 561 # now that the boards have been converted to use the generic kernel they are
                                                   >> 562 # wrappers around the generic rules above.
                                                   >> 563 #
                                                   >> 564 legacy_defconfigs               += ocelot_defconfig
                                                   >> 565 ocelot_defconfig-y              := 32r2el_defconfig BOARDS=ocelot
                                                   >> 566 
                                                   >> 567 legacy_defconfigs               += sead3_defconfig
                                                   >> 568 sead3_defconfig-y               := 32r2el_defconfig BOARDS=sead-3
                                                   >> 569 
                                                   >> 570 legacy_defconfigs               += sead3micro_defconfig
                                                   >> 571 sead3micro_defconfig-y          := micro32r2el_defconfig BOARDS=sead-3
                                                   >> 572 
                                                   >> 573 legacy_defconfigs               += xilfpga_defconfig
                                                   >> 574 xilfpga_defconfig-y             := 32r2el_defconfig BOARDS=xilfpga
                                                   >> 575 
                                                   >> 576 legacy_defconfigs               += pistachio_defconfig
                                                   >> 577 pistachio_defconfig-y           := 32r2el_defconfig BOARDS=marduk
                                                   >> 578 
                                                   >> 579 .PHONY: $(legacy_defconfigs)
                                                   >> 580 $(legacy_defconfigs):
                                                   >> 581         $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
                                                      

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