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TOMOYO Linux Cross Reference
Linux/arch/powerpc/Makefile

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Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

Diff markup

Differences between /arch/powerpc/Makefile (Version linux-6.12-rc7) and /arch/mips/Makefile (Version linux-5.15.171)


  1 # This file is included by the global makefile << 
  2 # architecture-specific flags and dependencies << 
  3 #                                                   1 #
  4 # This file is subject to the terms and condit      2 # This file is subject to the terms and conditions of the GNU General Public
  5 # License.  See the file "COPYING" in the main      3 # License.  See the file "COPYING" in the main directory of this archive
  6 # for more details.                                 4 # for more details.
  7 #                                                   5 #
  8 # Copyright (C) 1994 by Linus Torvalds         !!   6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
  9 # Changes for PPC by Gary Thomas               !!   7 # DECStation modifications by Paul M. Antoine, 1996
 10 # Rewritten by Cort Dougan and Paul Mackerras  !!   8 # Copyright (C) 2002, 2003, 2004  Maciej W. Rozycki
                                                   >>   9 #
                                                   >>  10 # This file is included by the global makefile so that you can add your own
                                                   >>  11 # architecture-specific flags and dependencies. Remember to do have actions
                                                   >>  12 # for "archclean" cleaning up for this architecture.
 11 #                                                  13 #
 12                                                    14 
                                                   >>  15 archscripts: scripts_basic
                                                   >>  16         $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
                                                   >>  17 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y)
                                                   >>  18         $(Q)$(MAKE) $(build)=arch/mips/tools loongson3-llsc-check
                                                   >>  19 endif
                                                   >>  20         $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
                                                   >>  21 
                                                   >>  22 KBUILD_DEFCONFIG := 32r2el_defconfig
                                                   >>  23 KBUILD_DTBS      := dtbs
                                                   >>  24 
                                                   >>  25 #
                                                   >>  26 # Select the object file format to substitute into the linker script.
                                                   >>  27 #
                                                   >>  28 ifdef CONFIG_CPU_LITTLE_ENDIAN
                                                   >>  29 32bit-tool-archpref     = mipsel
                                                   >>  30 64bit-tool-archpref     = mips64el
                                                   >>  31 32bit-bfd               = elf32-tradlittlemips
                                                   >>  32 64bit-bfd               = elf64-tradlittlemips
                                                   >>  33 32bit-emul              = elf32ltsmip
                                                   >>  34 64bit-emul              = elf64ltsmip
                                                   >>  35 else
                                                   >>  36 32bit-tool-archpref     = mips
                                                   >>  37 64bit-tool-archpref     = mips64
                                                   >>  38 32bit-bfd               = elf32-tradbigmips
                                                   >>  39 64bit-bfd               = elf64-tradbigmips
                                                   >>  40 32bit-emul              = elf32btsmip
                                                   >>  41 64bit-emul              = elf64btsmip
                                                   >>  42 endif
                                                   >>  43 
                                                   >>  44 ifdef CONFIG_32BIT
                                                   >>  45 tool-archpref           = $(32bit-tool-archpref)
                                                   >>  46 UTS_MACHINE             := mips
                                                   >>  47 endif
                                                   >>  48 ifdef CONFIG_64BIT
                                                   >>  49 tool-archpref           = $(64bit-tool-archpref)
                                                   >>  50 UTS_MACHINE             := mips64
                                                   >>  51 endif
                                                   >>  52 
 13 ifdef cross_compiling                              53 ifdef cross_compiling
 14   ifeq ($(CROSS_COMPILE),)                         54   ifeq ($(CROSS_COMPILE),)
 15     # Auto detect cross compiler prefix.       !!  55     CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux-  $(tool-archpref)-linux-gnu-  $(tool-archpref)-unknown-linux-gnu-)
 16     # Look for: (powerpc(64(le)?)?)(-unknown)? << 
 17     CC_ARCHES := powerpc powerpc64 powerpc64le << 
 18     CC_SUFFIXES := linux linux-gnu unknown-lin << 
 19     CROSS_COMPILE := $(call cc-cross-prefix, $ << 
 20                        $(foreach s,$(CC_SUFFIX << 
 21   endif                                            56   endif
 22 endif                                              57 endif
 23                                                    58 
 24 HAS_BIARCH      := $(call cc-option-yn, -m32)  !!  59 ifdef CONFIG_FUNCTION_GRAPH_TRACER
                                                   >>  60   ifndef KBUILD_MCOUNT_RA_ADDRESS
                                                   >>  61     ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
                                                   >>  62       cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
                                                   >>  63     endif
                                                   >>  64   endif
                                                   >>  65 endif
                                                   >>  66 cflags-y += $(call cc-option, -mno-check-zero-division)
 25                                                    67 
 26 # Set default 32 bits cross compilers for vdso !!  68 ifdef CONFIG_32BIT
 27 CROSS32_COMPILE ?=                             !!  69 ld-emul                 = $(32bit-emul)
                                                   >>  70 vmlinux-32              = vmlinux
                                                   >>  71 vmlinux-64              = vmlinux.64
 28                                                    72 
 29 # If we're on a ppc/ppc64/ppc64le machine use  !!  73 cflags-y                += -mabi=32
 30 # ppc64le_defconfig because we have nothing be !!  74 endif
 31 uname := $(shell uname -m)                     << 
 32 KBUILD_DEFCONFIG := $(if $(filter ppc%,$(uname << 
 33                                                    75 
 34 new_nm := $(shell if $(NM) --help 2>&1 | grep  !!  76 ifdef CONFIG_64BIT
                                                   >>  77 ld-emul                 = $(64bit-emul)
                                                   >>  78 vmlinux-32              = vmlinux.32
                                                   >>  79 vmlinux-64              = vmlinux
 35                                                    80 
 36 ifeq ($(new_nm),y)                             !!  81 cflags-y                += -mabi=64
 37 NM              := $(NM) --synthetic           << 
 38 endif                                              82 endif
 39                                                    83 
 40 # BITS is used as extension for files which ar !!  84 all-$(CONFIG_BOOT_ELF32)        := $(vmlinux-32)
 41 # and a 64 bit version to simplify shared Make !!  85 all-$(CONFIG_BOOT_ELF64)        := $(vmlinux-64)
 42 # e.g.: obj-y += foo_$(BITS).o                 !!  86 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
 43 export BITS                                    << 
 44                                                    87 
 45 ifdef CONFIG_PPC64                             !!  88 #
 46         BITS := 64                             !!  89 # GCC uses -G 0 -mabicalls -fpic as default.  We don't want PIC in the kernel
 47 else                                           !!  90 # code since it only slows down the whole thing.  At some point we might make
 48         BITS := 32                             !!  91 # use of global pointer optimizations but their use of $28 conflicts with
 49 endif                                          !!  92 # the current pointer optimization.
                                                   >>  93 #
                                                   >>  94 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
                                                   >>  95 # machines may also.  Since BFD is incredibly buggy with respect to
                                                   >>  96 # crossformat linking we rely on the elf2ecoff tool for format conversion.
                                                   >>  97 #
                                                   >>  98 cflags-y                        += -G 0 -mno-abicalls -fno-pic -pipe
                                                   >>  99 cflags-y                        += -msoft-float
                                                   >> 100 LDFLAGS_vmlinux                 += -G 0 -static -n -nostdlib
                                                   >> 101 KBUILD_AFLAGS_MODULE            += -mlong-calls
                                                   >> 102 KBUILD_CFLAGS_MODULE            += -mlong-calls
 50                                                   103 
 51 machine-y = ppc                                !! 104 ifeq ($(CONFIG_RELOCATABLE),y)
 52 machine-$(CONFIG_PPC64) += 64                  !! 105 LDFLAGS_vmlinux                 += --emit-relocs
 53 machine-$(CONFIG_CPU_LITTLE_ENDIAN) += le      << 
 54 UTS_MACHINE := $(subst $(space),,$(machine-y)) << 
 55                                                << 
 56 ifeq ($(CONFIG_PPC64)$(CONFIG_LD_IS_BFD),yy)   << 
 57 # Have the linker provide sfpr if possible.    << 
 58 # There is a corresponding test in arch/powerp << 
 59 KBUILD_LDFLAGS_MODULE += --save-restore-funcs  << 
 60 else                                           << 
 61 KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crts << 
 62 endif                                             106 endif
 63                                                   107 
 64 ifdef CONFIG_CPU_LITTLE_ENDIAN                 !! 108 #
 65 KBUILD_CFLAGS   += -mlittle-endian             !! 109 # pass -msoft-float to GAS if it supports it.  However on newer binutils
 66 KBUILD_LDFLAGS  += -EL                         !! 110 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
 67 LDEMULATION     := lppc                        !! 111 # set ".set hardfloat" in all files which manipulate floating point registers.
 68 GNUTARGET       := powerpcle                   !! 112 #
 69 MULTIPLEWORD    := -mno-multiple               !! 113 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
 70 KBUILD_CFLAGS_MODULE += $(call cc-option,-mno- !! 114         cflags-y                += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
 71 else                                           << 
 72 KBUILD_CFLAGS += $(call cc-option,-mbig-endian << 
 73 KBUILD_LDFLAGS  += -EB                         << 
 74 LDEMULATION     := ppc                         << 
 75 GNUTARGET       := powerpc                     << 
 76 MULTIPLEWORD    := -mmultiple                  << 
 77 endif                                             115 endif
 78                                                   116 
 79 ifdef CONFIG_PPC64                             !! 117 cflags-y += -ffreestanding
 80 ifndef CONFIG_CC_IS_CLANG                      << 
 81 cflags-$(CONFIG_PPC64_ELF_ABI_V1)       += $(c << 
 82 cflags-$(CONFIG_PPC64_ELF_ABI_V1)       += $(c << 
 83 aflags-$(CONFIG_PPC64_ELF_ABI_V1)       += $(c << 
 84 aflags-$(CONFIG_PPC64_ELF_ABI_V2)       += -ma << 
 85 endif                                          << 
 86 endif                                          << 
 87                                                   118 
 88 ifndef CONFIG_CC_IS_CLANG                      !! 119 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -EB
 89   cflags-$(CONFIG_CPU_LITTLE_ENDIAN)    += -mn !! 120 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -EL
 90 endif                                          << 
 91                                                   121 
 92 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += $(c !! 122 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
 93 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml !! 123                                    -fno-omit-frame-pointer
 94 aflags-$(CONFIG_CPU_BIG_ENDIAN)         += $(c << 
 95 aflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -ml << 
 96                                                   124 
 97 ifeq ($(HAS_BIARCH),y)                         !! 125 # Some distribution-specific toolchains might pass the -fstack-check
 98 KBUILD_CFLAGS   += -m$(BITS)                   !! 126 # option during the build, which adds a simple stack-probe at the beginning
 99 KBUILD_AFLAGS   += -m$(BITS)                   !! 127 # of every function.  This stack probe is to ensure that there is enough
100 KBUILD_LDFLAGS  += -m elf$(BITS)$(LDEMULATION) !! 128 # stack space, else a SEGV is generated.  This is not desirable for MIPS
101 endif                                          !! 129 # as kernel stacks are small, placed in unmapped virtual memory, and do not
                                                   >> 130 # grow when overflowed.  Especially on SGI IP27 platforms, this check will
                                                   >> 131 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
                                                   >> 132 #
                                                   >> 133 # In disassembly, this stack probe appears at the top of a function as:
                                                   >> 134 #    sd         zero,<offset>(sp)
                                                   >> 135 # Where <offset> is a negative value.
                                                   >> 136 #
                                                   >> 137 cflags-y += -fno-stack-check
102                                                   138 
103 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro !! 139 # binutils from v2.35 when built with --enable-mips-fix-loongson3-llsc=yes,
104 ifdef CONFIG_PPC64                             !! 140 # supports an -mfix-loongson3-llsc flag which emits a sync prior to each ll
105 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro !! 141 # instruction to work around a CPU bug (see __SYNC_loongson3_war in asm/sync.h
106 else                                           !! 142 # for a description).
107 cflags-$(CONFIG_STACKPROTECTOR) += -mstack-pro !! 143 #
108 endif                                          !! 144 # We disable this in order to prevent the assembler meddling with the
                                                   >> 145 # instruction that labels refer to, ie. if we label an ll instruction:
                                                   >> 146 #
                                                   >> 147 # 1: ll v0, 0(a0)
                                                   >> 148 #
                                                   >> 149 # ...then with the assembler fix applied the label may actually point at a sync
                                                   >> 150 # instruction inserted by the assembler, and if we were using the label in an
                                                   >> 151 # exception table the table would no longer contain the address of the ll
                                                   >> 152 # instruction.
                                                   >> 153 #
                                                   >> 154 # Avoid this by explicitly disabling that assembler behaviour.
                                                   >> 155 #
                                                   >> 156 cflags-y += $(call as-option,-Wa$(comma)-mno-fix-loongson3-llsc,)
109                                                   157 
110 LDFLAGS_vmlinux-y := -Bstatic                  !! 158 #
111 LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) := -pie  !! 159 # CPU-dependent compiler/assembler options for optimization.
112 LDFLAGS_vmlinux-$(CONFIG_RELOCATABLE) += -z no !! 160 #
113 LDFLAGS_vmlinux := $(LDFLAGS_vmlinux-y)        !! 161 cflags-$(CONFIG_CPU_R3000)      += -march=r3000
114                                                !! 162 cflags-$(CONFIG_CPU_TX39XX)     += -march=r3900
115 ifdef CONFIG_PPC64                             !! 163 cflags-$(CONFIG_CPU_R4300)      += -march=r4300 -Wa,--trap
116 ifndef CONFIG_PPC_KERNEL_PCREL                 !! 164 cflags-$(CONFIG_CPU_VR41XX)     += -march=r4100 -Wa,--trap
117         # -mcmodel=medium breaks modules becau !! 165 cflags-$(CONFIG_CPU_R4X00)      += -march=r4600 -Wa,--trap
118         # the TOC pointer to create pointers w !! 166 cflags-$(CONFIG_CPU_TX49XX)     += -march=r4600 -Wa,--trap
119         # percpu data area are created by this !! 167 cflags-$(CONFIG_CPU_MIPS32_R1)  += -march=mips32 -Wa,--trap
120         #                                      !! 168 cflags-$(CONFIG_CPU_MIPS32_R2)  += -march=mips32r2 -Wa,--trap
121         # The kernel module loader relocates t !! 169 cflags-$(CONFIG_CPU_MIPS32_R5)  += -march=mips32r5 -Wa,--trap -modd-spreg
122         # original location (starting with 0xd !! 170 cflags-$(CONFIG_CPU_MIPS32_R6)  += -march=mips32r6 -Wa,--trap -modd-spreg
123         # kernel percpu data space (starting w !! 171 cflags-$(CONFIG_CPU_MIPS64_R1)  += -march=mips64 -Wa,--trap
124         # 64bit relocation for this to work, h !! 172 cflags-$(CONFIG_CPU_MIPS64_R2)  += -march=mips64r2 -Wa,--trap
125         KBUILD_CFLAGS_MODULE += -mcmodel=large !! 173 cflags-$(CONFIG_CPU_MIPS64_R5)  += -march=mips64r5 -Wa,--trap
126 endif                                          !! 174 cflags-$(CONFIG_CPU_MIPS64_R6)  += -march=mips64r6 -Wa,--trap
127 endif                                          !! 175 cflags-$(CONFIG_CPU_P5600)      += -march=p5600 -Wa,--trap -modd-spreg
                                                   >> 176 cflags-$(CONFIG_CPU_R5000)      += -march=r5000 -Wa,--trap
                                                   >> 177 cflags-$(CONFIG_CPU_R5500)      += $(call cc-option,-march=r5500,-march=r5000) \
                                                   >> 178                         -Wa,--trap
                                                   >> 179 cflags-$(CONFIG_CPU_NEVADA)     += $(call cc-option,-march=rm5200,-march=r5000) \
                                                   >> 180                         -Wa,--trap
                                                   >> 181 cflags-$(CONFIG_CPU_RM7000)     += $(call cc-option,-march=rm7000,-march=r5000) \
                                                   >> 182                         -Wa,--trap
                                                   >> 183 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-march=sb1,-march=r5000) \
                                                   >> 184                         -Wa,--trap
                                                   >> 185 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-mno-mdmx)
                                                   >> 186 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-mno-mips3d)
                                                   >> 187 cflags-$(CONFIG_CPU_R10000)     += $(call cc-option,-march=r10000,-march=r8000) \
                                                   >> 188                         -Wa,--trap
                                                   >> 189 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
                                                   >> 190 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
                                                   >> 191 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
                                                   >> 192 endif
                                                   >> 193 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
                                                   >> 194 cflags-$(CONFIG_CPU_BMIPS)      += -march=mips32 -Wa,-mips32 -Wa,--trap
                                                   >> 195 
                                                   >> 196 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)  += $(call cc-option,-mfix-r4000,)
                                                   >> 197 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)  += $(call cc-option,-mfix-r4400,)
                                                   >> 198 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)  += $(call cc-option,-mno-daddi,)
                                                   >> 199 
                                                   >> 200 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
                                                   >> 201 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
                                                   >> 202 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
                                                   >> 203 # similar directives in the kernel will spam the build logs with the following warnings:
                                                   >> 204 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
                                                   >> 205 # or
                                                   >> 206 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
                                                   >> 207 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
                                                   >> 208 # been fixed properly.
                                                   >> 209 mips-cflags                             := $(cflags-y)
                                                   >> 210 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
                                                   >> 211 smartmips-ase                           := $(call cc-option-yn,$(mips-cflags) -msmartmips)
                                                   >> 212 cflags-$(smartmips-ase)                 += -msmartmips -Wa,--no-warn
                                                   >> 213 endif
                                                   >> 214 ifeq ($(CONFIG_CPU_MICROMIPS),y)
                                                   >> 215 micromips-ase                           := $(call cc-option-yn,$(mips-cflags) -mmicromips)
                                                   >> 216 cflags-$(micromips-ase)                 += -mmicromips
                                                   >> 217 endif
                                                   >> 218 ifeq ($(CONFIG_CPU_HAS_MSA),y)
                                                   >> 219 toolchain-msa                           := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
                                                   >> 220 cflags-$(toolchain-msa)                 += -DTOOLCHAIN_SUPPORTS_MSA
                                                   >> 221 endif
                                                   >> 222 toolchain-virt                          := $(call cc-option-yn,$(mips-cflags) -mvirt)
                                                   >> 223 cflags-$(toolchain-virt)                += -DTOOLCHAIN_SUPPORTS_VIRT
                                                   >> 224 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
                                                   >> 225 # only warns
                                                   >> 226 xpa-cflags-y                            := $(mips-cflags)
                                                   >> 227 xpa-cflags-$(micromips-ase)             += -mmicromips -Wa$(comma)-fatal-warnings
                                                   >> 228 toolchain-xpa                           := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
                                                   >> 229 cflags-$(toolchain-xpa)                 += -DTOOLCHAIN_SUPPORTS_XPA
                                                   >> 230 toolchain-crc                           := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
                                                   >> 231 cflags-$(toolchain-crc)                 += -DTOOLCHAIN_SUPPORTS_CRC
                                                   >> 232 toolchain-dsp                           := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
                                                   >> 233 cflags-$(toolchain-dsp)                 += -DTOOLCHAIN_SUPPORTS_DSP
                                                   >> 234 toolchain-ginv                          := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv)
                                                   >> 235 cflags-$(toolchain-ginv)                += -DTOOLCHAIN_SUPPORTS_GINV
128                                                   236 
129 CFLAGS-$(CONFIG_PPC64)  := $(call cc-option,-m !! 237 #
130 ifdef CONFIG_PPC64_ELF_ABI_V2                  !! 238 # Firmware support
131 CFLAGS-$(CONFIG_PPC64)  += $(call cc-option,-m !! 239 #
                                                   >> 240 libs-$(CONFIG_FW_ARC)           += arch/mips/fw/arc/
                                                   >> 241 libs-$(CONFIG_FW_CFE)           += arch/mips/fw/cfe/
                                                   >> 242 libs-$(CONFIG_FW_SNIPROM)       += arch/mips/fw/sni/
                                                   >> 243 libs-y                          += arch/mips/fw/lib/
                                                   >> 244 
                                                   >> 245 #
                                                   >> 246 # Kernel compression
                                                   >> 247 #
                                                   >> 248 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
                                                   >> 249 COMPRESSION_FNAME               = vmlinuz
132 else                                              250 else
133 ifndef CONFIG_CC_IS_CLANG                      !! 251 COMPRESSION_FNAME               = vmlinux
134 CFLAGS-$(CONFIG_PPC64)  += $(call cc-option,-m << 
135 CFLAGS-$(CONFIG_PPC64)  += $(call cc-option,-m << 
136 endif                                             252 endif
                                                   >> 253 
                                                   >> 254 #
                                                   >> 255 # Board-dependent options and extra files
                                                   >> 256 #
                                                   >> 257 ifdef need-compiler
                                                   >> 258 include $(srctree)/arch/mips/Kbuild.platforms
137 endif                                             259 endif
138 CFLAGS-$(CONFIG_PPC64)  += -mcmodel=medium     << 
139 CFLAGS-$(CONFIG_PPC64)  += $(call cc-option,-m << 
140 CFLAGS-$(CONFIG_PPC64)  += $(call cc-option,-m << 
141                                                   260 
142 # Clang unconditionally reserves r2 on ppc32 a !! 261 ifdef CONFIG_PHYSICAL_START
143 # https://llvm.org/pr39555                     !! 262 load-y                                  = $(CONFIG_PHYSICAL_START)
144 CFLAGS-$(CONFIG_PPC32)  := $(call cc-option, - !! 263 endif
145                                                   264 
146 # Clang doesn't support -mmultiple / -mno-mult !! 265 entry-y                         = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
147 # https://llvm.org/pr39556                     !! 266 cflags-y                        += -I$(srctree)/arch/mips/include/asm/mach-generic
148 CFLAGS-$(CONFIG_PPC32)  += $(call cc-option, $ !! 267 drivers-$(CONFIG_PCI)           += arch/mips/pci/
149                                                   268 
150 CFLAGS-$(CONFIG_PPC32)  += $(call cc-option,-m !! 269 #
                                                   >> 270 # Automatically detect the build format. By default we choose
                                                   >> 271 # the elf format according to the load address.
                                                   >> 272 # We can always force a build with a 64-bits symbol format by
                                                   >> 273 # passing 'KBUILD_SYM32=no' option to the make's command line.
                                                   >> 274 #
                                                   >> 275 ifdef CONFIG_64BIT
                                                   >> 276   ifndef KBUILD_SYM32
                                                   >> 277     ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
                                                   >> 278       KBUILD_SYM32 = y
                                                   >> 279     endif
                                                   >> 280   endif
151                                                   281 
152 CC_FLAGS_FPU            := $(call cc-option,-m !! 282   ifeq ($(KBUILD_SYM32), y)
153 CC_FLAGS_NO_FPU         := $(call cc-option,-m !! 283     cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD_64BIT_SYM32
                                                   >> 284   else
                                                   >> 285     ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
                                                   >> 286       $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
                                                   >> 287     endif
                                                   >> 288   endif
                                                   >> 289 endif
154                                                   290 
155 ifdef CONFIG_FUNCTION_TRACER                   !! 291 # When linking a 32-bit executable the LLVM linker cannot cope with a
156 ifdef CONFIG_ARCH_USING_PATCHABLE_FUNCTION_ENT !! 292 # 32-bit load address that has been sign-extended to 64 bits.  Simply
157 KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTI !! 293 # remove the upper 32 bits then, as it is safe to do so with other
158 CC_FLAGS_FTRACE := -fpatchable-function-entry= !! 294 # linkers.
                                                   >> 295 ifdef CONFIG_64BIT
                                                   >> 296         load-ld                 = $(load-y)
159 else                                              297 else
160 CC_FLAGS_FTRACE := -pg                         !! 298         load-ld                 = $(subst 0xffffffff,0x,$(load-y))
161 ifdef CONFIG_MPROFILE_KERNEL                   << 
162 CC_FLAGS_FTRACE += -mprofile-kernel            << 
163 endif                                             299 endif
                                                   >> 300 
                                                   >> 301 KBUILD_AFLAGS   += $(cflags-y)
                                                   >> 302 KBUILD_CFLAGS   += $(cflags-y)
                                                   >> 303 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y) -DLINKER_LOAD_ADDRESS=$(load-ld)
                                                   >> 304 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
                                                   >> 305 
                                                   >> 306 bootvars-y      = VMLINUX_LOAD_ADDRESS=$(load-y) \
                                                   >> 307                   LINKER_LOAD_ADDRESS=$(load-ld) \
                                                   >> 308                   VMLINUX_ENTRY_ADDRESS=$(entry-y) \
                                                   >> 309                   PLATFORM="$(platform-y)" \
                                                   >> 310                   ITS_INPUTS="$(its-y)"
                                                   >> 311 ifdef CONFIG_32BIT
                                                   >> 312 bootvars-y      += ADDR_BITS=32
164 endif                                             313 endif
                                                   >> 314 ifdef CONFIG_64BIT
                                                   >> 315 bootvars-y      += ADDR_BITS=64
165 endif                                             316 endif
166                                                   317 
167 CFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CO !! 318 # This is required to get dwarf unwinding tables into .debug_frame
168 AFLAGS-$(CONFIG_TARGET_CPU_BOOL) += -mcpu=$(CO !! 319 # instead of .eh_frame so we don't discard them.
                                                   >> 320 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
169                                                   321 
170 CFLAGS-y += $(CONFIG_TUNE_CPU)                 !! 322 KBUILD_LDFLAGS          += -m $(ld-emul)
171                                                   323 
172 asinstr := $(call as-instr,lis 9$(comma)foo@hi !! 324 ifdef need-compiler
                                                   >> 325 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
                                                   >> 326         grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
                                                   >> 327         sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
                                                   >> 328 endif
                                                   >> 329 
                                                   >> 330 OBJCOPYFLAGS            += --remove-section=.reginfo
                                                   >> 331 
                                                   >> 332 head-y := arch/mips/kernel/head.o
                                                   >> 333 
                                                   >> 334 libs-y                  += arch/mips/lib/
                                                   >> 335 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
                                                   >> 336 
                                                   >> 337 drivers-y                       += arch/mips/crypto/
                                                   >> 338 
                                                   >> 339 # suspend and hibernation support
                                                   >> 340 drivers-$(CONFIG_PM)    += arch/mips/power/
                                                   >> 341 
                                                   >> 342 # boot image targets (arch/mips/boot/)
                                                   >> 343 boot-y                  := vmlinux.bin
                                                   >> 344 boot-y                  += vmlinux.ecoff
                                                   >> 345 boot-y                  += vmlinux.srec
                                                   >> 346 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
                                                   >> 347 boot-y                  += uImage
                                                   >> 348 boot-y                  += uImage.bin
                                                   >> 349 boot-y                  += uImage.bz2
                                                   >> 350 boot-y                  += uImage.gz
                                                   >> 351 boot-y                  += uImage.lzma
                                                   >> 352 boot-y                  += uImage.lzo
                                                   >> 353 endif
                                                   >> 354 boot-y                  += vmlinux.itb
                                                   >> 355 boot-y                  += vmlinux.gz.itb
                                                   >> 356 boot-y                  += vmlinux.bz2.itb
                                                   >> 357 boot-y                  += vmlinux.lzma.itb
                                                   >> 358 boot-y                  += vmlinux.lzo.itb
                                                   >> 359 
                                                   >> 360 # compressed boot image targets (arch/mips/boot/compressed/)
                                                   >> 361 bootz-y                 := vmlinuz
                                                   >> 362 bootz-y                 += vmlinuz.bin
                                                   >> 363 bootz-y                 += vmlinuz.ecoff
                                                   >> 364 bootz-y                 += vmlinuz.srec
                                                   >> 365 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
                                                   >> 366 bootz-y                 += uzImage.bin
                                                   >> 367 endif
                                                   >> 368 bootz-y                 += vmlinuz.itb
173                                                   369 
174 KBUILD_CPPFLAGS += -I $(srctree)/arch/powerpc  !! 370 #
175 KBUILD_AFLAGS   += $(AFLAGS-y)                 !! 371 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
176 KBUILD_CFLAGS   += $(CC_FLAGS_NO_FPU)          !! 372 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
177 KBUILD_CFLAGS   += $(CFLAGS-y)                 !! 373 # convert to ECOFF using elf2ecoff.
178 CPP             = $(CC) -E $(KBUILD_CFLAGS)    !! 374 #
                                                   >> 375 quiet_cmd_32 = OBJCOPY $@
                                                   >> 376         cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
                                                   >> 377 vmlinux.32: vmlinux
                                                   >> 378         $(call cmd,32)
179                                                   379 
180 CHECKFLAGS      += -m$(BITS) -D__powerpc__ -D_ !! 380 #
181 ifdef CONFIG_CPU_BIG_ENDIAN                    !! 381 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
182 CHECKFLAGS      += -D__BIG_ENDIAN__            !! 382 # ELF files from 32-bit files by conversion.
                                                   >> 383 #
                                                   >> 384 quiet_cmd_64 = OBJCOPY $@
                                                   >> 385         cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
                                                   >> 386 vmlinux.64: vmlinux
                                                   >> 387         $(call cmd,64)
                                                   >> 388 
                                                   >> 389 all:    $(all-y) $(KBUILD_DTBS)
                                                   >> 390 
                                                   >> 391 # boot
                                                   >> 392 $(boot-y): $(vmlinux-32) FORCE
                                                   >> 393         $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
                                                   >> 394                 $(bootvars-y) arch/mips/boot/$@
                                                   >> 395 
                                                   >> 396 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
                                                   >> 397 # boot/compressed
                                                   >> 398 $(bootz-y): $(vmlinux-32) FORCE
                                                   >> 399         $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
                                                   >> 400                 $(bootvars-y) 32bit-bfd=$(32bit-bfd) arch/mips/boot/$@
183 else                                              401 else
184 CHECKFLAGS      += -D__LITTLE_ENDIAN__         !! 402 vmlinuz: FORCE
                                                   >> 403         @echo '   CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
                                                   >> 404         /bin/false
185 endif                                             405 endif
186                                                   406 
187 ifdef CONFIG_476FPE_ERR46                      << 
188         KBUILD_LDFLAGS_MODULE += --ppc476-work << 
189                 -T $(srctree)/arch/powerpc/pla << 
190 endif                                          << 
191                                                   407 
192 # No prefix or pcrel                           !! 408 CLEAN_FILES += vmlinux.32 vmlinux.64
193 ifdef CONFIG_PPC_KERNEL_PREFIXED               !! 409 
194 KBUILD_CFLAGS += $(call cc-option,-mprefixed)  !! 410 # device-trees
195 else                                           !! 411 core-y += arch/mips/boot/dts/
196 KBUILD_CFLAGS += $(call cc-option,-mno-prefixe !! 412 
                                                   >> 413 archprepare:
                                                   >> 414 ifdef CONFIG_MIPS32_N32
                                                   >> 415         @$(kecho) '  Checking missing-syscalls for N32'
                                                   >> 416         $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
197 endif                                             417 endif
198 ifdef CONFIG_PPC_KERNEL_PCREL                  !! 418 ifdef CONFIG_MIPS32_O32
199 KBUILD_CFLAGS += $(call cc-option,-mpcrel)     !! 419         @$(kecho) '  Checking missing-syscalls for O32'
200 else                                           !! 420         $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
201 KBUILD_CFLAGS += $(call cc-option,-mno-pcrel)  << 
202 endif                                             421 endif
203                                                   422 
204 # No AltiVec or VSX or MMA instructions when b !! 423 install:
205 KBUILD_CFLAGS += $(call cc-option,-mno-altivec !! 424         $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
206 KBUILD_CFLAGS += $(call cc-option,-mno-vsx)    !! 425 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
207 KBUILD_CFLAGS += $(call cc-option,-mno-mma)    !! 426         $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
                                                   >> 427 endif
                                                   >> 428         $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
                                                   >> 429         $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
                                                   >> 430 
                                                   >> 431 archclean:
                                                   >> 432         $(Q)$(MAKE) $(clean)=arch/mips/boot
                                                   >> 433         $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
                                                   >> 434         $(Q)$(MAKE) $(clean)=arch/mips/boot/tools
208                                                   435 
209 # No SPE instruction when building kernel      !! 436 archheaders:
210 # (We use all available options to help semi-b !! 437         $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
211 KBUILD_CFLAGS += $(call cc-option,-mno-spe)    << 
212 KBUILD_CFLAGS += $(call cc-option,-mspe=no)    << 
213                                                   438 
214 # Don't emit .eh_frame since we have no use fo !! 439 define archhelp
215 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl !! 440         echo '  install              - install kernel into $(INSTALL_PATH)'
                                                   >> 441         echo '  vmlinux.ecoff        - ECOFF boot image'
                                                   >> 442         echo '  vmlinux.bin          - Raw binary boot image'
                                                   >> 443         echo '  vmlinux.srec         - SREC boot image'
                                                   >> 444         echo '  vmlinux.32           - 64-bit boot image wrapped in 32bits (IP22/IP32)'
                                                   >> 445         echo '  vmlinuz              - Compressed boot(zboot) image'
                                                   >> 446         echo '  vmlinuz.ecoff        - ECOFF zboot image'
                                                   >> 447         echo '  vmlinuz.bin          - Raw binary zboot image'
                                                   >> 448         echo '  vmlinuz.srec         - SREC zboot image'
                                                   >> 449         echo '  uImage               - U-Boot image'
                                                   >> 450         echo '  uImage.bin           - U-Boot image (uncompressed)'
                                                   >> 451         echo '  uImage.bz2           - U-Boot image (bz2)'
                                                   >> 452         echo '  uImage.gz            - U-Boot image (gzip)'
                                                   >> 453         echo '  uImage.lzma          - U-Boot image (lzma)'
                                                   >> 454         echo '  uImage.lzo           - U-Boot image (lzo)'
                                                   >> 455         echo '  uzImage.bin          - U-Boot image (self-extracting)'
                                                   >> 456         echo
                                                   >> 457         echo '  These will be default as appropriate for a configured platform.'
                                                   >> 458         echo
                                                   >> 459         echo '  If you are targeting a system supported by generic kernels you may'
                                                   >> 460         echo '  configure the kernel for a given architecture target like so:'
                                                   >> 461         echo
                                                   >> 462         echo '  {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
                                                   >> 463         echo
                                                   >> 464         echo '  Where BOARDS is some subset of the following:'
                                                   >> 465         for board in $(sort $(BOARDS)); do echo "    $${board}"; done
                                                   >> 466         echo
                                                   >> 467         echo '  Specifically the following generic default configurations are'
                                                   >> 468         echo '  supported:'
                                                   >> 469         echo
                                                   >> 470         $(foreach cfg,$(generic_defconfigs),
                                                   >> 471           printf "  %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
                                                   >> 472         echo
                                                   >> 473         echo '  The following legacy default configurations have been converted to'
                                                   >> 474         echo '  generic and can still be used:'
                                                   >> 475         echo
                                                   >> 476         $(foreach cfg,$(sort $(legacy_defconfigs)),
                                                   >> 477           printf "  %-24s - Build $($(cfg)-y)\n" $(cfg);)
                                                   >> 478         echo
                                                   >> 479         echo '  Otherwise, the following default configurations are available:'
                                                   >> 480 endef
216                                                   481 
217 # Never use string load/store instructions as  !! 482 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
218 # often slow when they are implemented at all  !! 483 generic_defconfigs :=
219 KBUILD_CFLAGS           += $(call cc-option,-m << 
220                                                << 
221 KBUILD_AFLAGS += $(aflags-y)                   << 
222 KBUILD_CFLAGS += $(cflags-y)                   << 
223                                                << 
224 # Default to zImage, override when needed      << 
225 all: zImage                                    << 
226                                                << 
227 # With make 3.82 we cannot mix normal and wild << 
228 BOOT_TARGETS1 := zImage zImage.initrd uImage   << 
229 BOOT_TARGETS2 := zImage% dtbImage% treeImage.% << 
230                                                << 
231 PHONY += $(BOOT_TARGETS1) $(BOOT_TARGETS2)     << 
232                                                << 
233 boot := arch/powerpc/boot                      << 
234                                                << 
235 $(BOOT_TARGETS1): vmlinux                      << 
236         $(Q)$(MAKE) $(build)=$(boot) $(patsubs << 
237 $(BOOT_TARGETS2): vmlinux                      << 
238         $(Q)$(MAKE) $(build)=$(boot) $(patsubs << 
239                                                << 
240                                                << 
241 PHONY += bootwrapper_install                   << 
242 bootwrapper_install:                           << 
243         $(Q)$(MAKE) $(build)=$(boot) $(patsubs << 
244                                                << 
245 include $(srctree)/scripts/Makefile.defconf    << 
246                                                << 
247 generated_configs += ppc64le_defconfig         << 
248 ppc64le_defconfig:                             << 
249         $(call merge_into_defconfig,ppc64_defc << 
250                                                << 
251 generated_configs += ppc64le_guest_defconfig   << 
252 ppc64le_guest_defconfig:                       << 
253         $(call merge_into_defconfig,ppc64_defc << 
254                                                << 
255 generated_configs += ppc64_guest_defconfig     << 
256 ppc64_guest_defconfig:                         << 
257         $(call merge_into_defconfig,ppc64_defc << 
258                                                << 
259 generated_configs += pseries_le_defconfig      << 
260 pseries_le_defconfig: ppc64le_guest_defconfig  << 
261                                                << 
262 generated_configs += pseries_defconfig         << 
263 pseries_defconfig: ppc64le_guest_defconfig     << 
264                                                << 
265 generated_configs += powernv_be_defconfig      << 
266 powernv_be_defconfig:                          << 
267         $(call merge_into_defconfig,powernv_de << 
268                                                << 
269 generated_configs += mpc85xx_defconfig         << 
270 mpc85xx_defconfig:                             << 
271         $(call merge_into_defconfig,mpc85xx_ba << 
272                 85xx-32bit 85xx-hw fsl-emb-non << 
273                                                << 
274 generated_configs += mpc85xx_smp_defconfig     << 
275 mpc85xx_smp_defconfig:                         << 
276         $(call merge_into_defconfig,mpc85xx_ba << 
277                 85xx-32bit 85xx-smp 85xx-hw fs << 
278                                                << 
279 generated_configs += corenet32_smp_defconfig   << 
280 corenet32_smp_defconfig:                       << 
281         $(call merge_into_defconfig,corenet_ba << 
282                 85xx-32bit 85xx-smp 85xx-hw fs << 
283                                                << 
284 generated_configs += corenet64_smp_defconfig   << 
285 corenet64_smp_defconfig:                       << 
286         $(call merge_into_defconfig,corenet_ba << 
287                 85xx-64bit 85xx-smp altivec 85 << 
288                                                << 
289 generated_configs += mpc86xx_defconfig         << 
290 mpc86xx_defconfig:                             << 
291         $(call merge_into_defconfig,mpc86xx_ba << 
292                 86xx-hw fsl-emb-nonhw)         << 
293                                                << 
294 generated_configs += mpc86xx_smp_defconfig     << 
295 mpc86xx_smp_defconfig:                         << 
296         $(call merge_into_defconfig,mpc86xx_ba << 
297                 86xx-smp 86xx-hw fsl-emb-nonhw << 
298                                                << 
299 generated_configs += ppc32_allmodconfig        << 
300 ppc32_allmodconfig:                            << 
301         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
302                 -f $(srctree)/Makefile allmodc << 
303                                                << 
304 generated_configs += ppc44x_allmodconfig       << 
305 ppc44x_allmodconfig:                           << 
306         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
307                 -f $(srctree)/Makefile allmodc << 
308                                                << 
309 generated_configs += ppc8xx_allmodconfig       << 
310 ppc8xx_allmodconfig:                           << 
311         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
312                 -f $(srctree)/Makefile allmodc << 
313                                                << 
314 generated_configs += ppc85xx_allmodconfig      << 
315 ppc85xx_allmodconfig:                          << 
316         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
317                 -f $(srctree)/Makefile allmodc << 
318                                                << 
319 generated_configs += ppc_defconfig             << 
320 ppc_defconfig:                                 << 
321         $(call merge_into_defconfig,book3s_32. << 
322                                                << 
323 generated_configs += ppc64le_allmodconfig      << 
324 ppc64le_allmodconfig:                          << 
325         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
326                 -f $(srctree)/Makefile allmodc << 
327                                                << 
328 generated_configs += ppc64le_allnoconfig       << 
329 ppc64le_allnoconfig:                           << 
330         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
331                 -f $(srctree)/Makefile allnoco << 
332                                                << 
333 generated_configs += ppc64_book3e_allmodconfig << 
334 ppc64_book3e_allmodconfig:                     << 
335         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
336                 -f $(srctree)/Makefile allmodc << 
337                                                << 
338 generated_configs += ppc32_randconfig          << 
339 ppc32_randconfig:                              << 
340         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
341                 -f $(srctree)/Makefile randcon << 
342                                                << 
343 generated_configs += ppc64_randconfig          << 
344 ppc64_randconfig:                              << 
345         $(Q)$(MAKE) KCONFIG_ALLCONFIG=$(srctre << 
346                 -f $(srctree)/Makefile randcon << 
347                                                   484 
348 PHONY += $(generated_configs)                  !! 485 #
                                                   >> 486 # If the user generates a generic kernel configuration without specifying a
                                                   >> 487 # list of boards to include the config fragments for, default to including all
                                                   >> 488 # available board config fragments.
                                                   >> 489 #
                                                   >> 490 ifeq ($(BOARDS),)
                                                   >> 491 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
                                                   >> 492 endif
349                                                   493 
350 define archhelp                                !! 494 #
351   echo '* zImage          - Build default imag !! 495 # Generic kernel configurations which merge generic_defconfig with the
352   echo '  zImage.*        - Compressed kernel  !! 496 # appropriate config fragments from arch/mips/configs/generic/, resulting in
353   echo '  uImage          - U-Boot native imag !! 497 # the ability to easily configure the kernel for a given architecture,
354   echo '  cuImage.<dt>    - Backwards compatib !! 498 # endianness & set of boards without duplicating the needed configuration in
355   echo '                    versions which do  !! 499 # hundreds of defconfig files.
356   echo '  dtbImage.<dt>   - zImage with an emb !! 500 #
357   echo '  simpleImage.<dt> - Firmware independ !! 501 define gen_generic_defconfigs
358   echo '  treeImage.<dt>  - Support for older  !! 502 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
359   echo '  install         - Install kernel usi !! 503 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
360   echo '                    (your) ~/bin/$(INS !! 504 generic_defconfigs += $$(target)
361   echo '                    (distribution) /sb !! 505 $$(target): $(generic_config_dir)/$(bits)$(rev).config
362   echo '                    install to $$(INST !! 506 $$(target): $(generic_config_dir)/$(endian).config
363   echo '  *_defconfig     - Select default con !! 507 )))
364   echo ''                                      << 
365   echo '  Targets with <dt> embed a device tre << 
366   echo '  These targets support board with fir << 
367   echo '  support passing a device tree direct << 
368   echo '  name of a dts file from the arch/pow << 
369   echo '  (minus the .dts extension).'         << 
370   echo                                         << 
371   $(foreach cfg,$(generated_configs),          << 
372     printf "  %-27s - Build for %s\\n" $(cfg)  << 
373 endef                                             508 endef
374                                                   509 
375 PHONY += install                               !! 510 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
376 install:                                       !! 511 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
377         $(call cmd,install)                    << 
378                                                   512 
379 ifeq ($(KBUILD_EXTMOD),)                       !! 513 define describe_generic_defconfig
380 # We need to generate vdso-offsets.h before co !! 514 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
381 # In order to do that, we should use the archp !! 515 endef
382 # asm-offsets.h is included in some files used << 
383 # asm-offsets.h is built in prepare0, for whic << 
384 # Therefore we need to generate the header aft << 
385 # this hack.                                   << 
386 prepare: vdso_prepare                          << 
387 vdso_prepare: prepare0                         << 
388         $(if $(CONFIG_VDSO32),$(Q)$(MAKE) \    << 
389                 $(build)=arch/powerpc/kernel/v << 
390         $(if $(CONFIG_PPC64),$(Q)$(MAKE) \     << 
391                 $(build)=arch/powerpc/kernel/v << 
392 endif                                          << 
393                                                   516 
394 archprepare: checkbin                          !! 517 .PHONY: $(generic_defconfigs)
                                                   >> 518 $(generic_defconfigs):
                                                   >> 519         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
                                                   >> 520                 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
                                                   >> 521                 grep -Ev '^#'
                                                   >> 522         $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
                                                   >> 523         $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
                                                   >> 524                 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
                                                   >> 525         $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
                                                   >> 526                 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
                                                   >> 527                 "$(origin BOARDS)" $(BOARDS)
                                                   >> 528         $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
395                                                   529 
396 archheaders:                                   !! 530 #
397         $(Q)$(MAKE) $(build)=arch/powerpc/kern !! 531 # Prevent generic merge_config rules attempting to merge single fragments
                                                   >> 532 #
                                                   >> 533 $(generic_config_dir)/%.config: ;
398                                                   534 
399 ifdef CONFIG_STACKPROTECTOR                    !! 535 #
400 prepare: stack_protector_prepare               !! 536 # Prevent direct use of generic_defconfig, which is intended to be used as the
                                                   >> 537 # basis of the various ISA-specific targets generated above.
                                                   >> 538 #
                                                   >> 539 .PHONY: generic_defconfig
                                                   >> 540 generic_defconfig:
                                                   >> 541         $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
                                                   >> 542         $(Q)echo "used via an ISA-specific target from the following list:"
                                                   >> 543         $(Q)echo
                                                   >> 544         $(Q)for cfg in $(generic_defconfigs); do echo "  $${cfg}"; done
                                                   >> 545         $(Q)echo
                                                   >> 546         $(Q)false
401                                                   547 
402 PHONY += stack_protector_prepare               !! 548 #
403 stack_protector_prepare: prepare0              !! 549 # Legacy defconfig compatibility - these targets used to be real defconfigs but
404 ifdef CONFIG_PPC64                             !! 550 # now that the boards have been converted to use the generic kernel they are
405         $(eval KBUILD_CFLAGS += -mstack-protec !! 551 # wrappers around the generic rules above.
406 else                                           !! 552 #
407         $(eval KBUILD_CFLAGS += -mstack-protec !! 553 legacy_defconfigs               += ocelot_defconfig
408 endif                                          !! 554 ocelot_defconfig-y              := 32r2el_defconfig BOARDS=ocelot
409 endif                                          !! 555 
                                                   >> 556 legacy_defconfigs               += sead3_defconfig
                                                   >> 557 sead3_defconfig-y               := 32r2el_defconfig BOARDS=sead-3
                                                   >> 558 
                                                   >> 559 legacy_defconfigs               += sead3micro_defconfig
                                                   >> 560 sead3micro_defconfig-y          := micro32r2el_defconfig BOARDS=sead-3
                                                   >> 561 
                                                   >> 562 legacy_defconfigs               += xilfpga_defconfig
                                                   >> 563 xilfpga_defconfig-y             := 32r2el_defconfig BOARDS=xilfpga
                                                   >> 564 
                                                   >> 565 legacy_defconfigs               += pistachio_defconfig
                                                   >> 566 pistachio_defconfig-y           := 32r2el_defconfig BOARDS=marduk
410                                                   567 
411 PHONY += checkbin                              !! 568 .PHONY: $(legacy_defconfigs)
412 checkbin:                                      !! 569 $(legacy_defconfigs):
413         @if test "x${CONFIG_FTRACE_MCOUNT_USE_ !! 570         $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
414                 "x${CONFIG_LD_IS_BFD}" = "xy"  << 
415                 "${CONFIG_LD_VERSION}" = "2370 << 
416                 echo -n '*** binutils 2.37 dro << 
417                 echo 'is unable to handle.' ;  << 
418                 echo '*** Please use a differe << 
419                 false ; \                      << 
420         fi                                     << 
                                                      

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