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TOMOYO Linux Cross Reference
Linux/arch/mips/Makefile

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

Diff markup

Differences between /arch/mips/Makefile (Version linux-6.12-rc7) and /arch/mips/Makefile (Version linux-5.3.18)


  1 #                                                   1 #
  2 # This file is subject to the terms and condit      2 # This file is subject to the terms and conditions of the GNU General Public
  3 # License.  See the file "COPYING" in the main      3 # License.  See the file "COPYING" in the main directory of this archive
  4 # for more details.                                 4 # for more details.
  5 #                                                   5 #
  6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Bae      6 # Copyright (C) 1994, 95, 96, 2003 by Ralf Baechle
  7 # DECStation modifications by Paul M. Antoine,      7 # DECStation modifications by Paul M. Antoine, 1996
  8 # Copyright (C) 2002, 2003, 2004  Maciej W. Ro      8 # Copyright (C) 2002, 2003, 2004  Maciej W. Rozycki
  9 #                                                   9 #
 10 # This file is included by the global makefile     10 # This file is included by the global makefile so that you can add your own
 11 # architecture-specific flags and dependencies !!  11 # architecture-specific flags and dependencies. Remember to do have actions
                                                   >>  12 # for "archclean" cleaning up for this architecture.
 12 #                                                  13 #
 13                                                    14 
 14 archscripts: scripts_basic                         15 archscripts: scripts_basic
 15         $(Q)$(MAKE) $(build)=arch/mips/tools e     16         $(Q)$(MAKE) $(build)=arch/mips/tools elf-entry
 16 ifeq ($(CONFIG_CPU_LOONGSON3_WORKAROUNDS),y)   << 
 17         $(Q)$(MAKE) $(build)=arch/mips/tools l << 
 18 endif                                          << 
 19         $(Q)$(MAKE) $(build)=arch/mips/boot/to     17         $(Q)$(MAKE) $(build)=arch/mips/boot/tools relocs
 20                                                    18 
 21 KBUILD_DEFCONFIG := 32r2el_defconfig               19 KBUILD_DEFCONFIG := 32r2el_defconfig
 22 KBUILD_DTBS      := dtbs                           20 KBUILD_DTBS      := dtbs
 23                                                    21 
 24 #                                                  22 #
 25 # Select the object file format to substitute      23 # Select the object file format to substitute into the linker script.
 26 #                                                  24 #
 27 ifdef CONFIG_CPU_LITTLE_ENDIAN                     25 ifdef CONFIG_CPU_LITTLE_ENDIAN
 28 32bit-tool-archpref     = mipsel                   26 32bit-tool-archpref     = mipsel
 29 64bit-tool-archpref     = mips64el                 27 64bit-tool-archpref     = mips64el
 30 32bit-bfd               = elf32-tradlittlemips     28 32bit-bfd               = elf32-tradlittlemips
 31 64bit-bfd               = elf64-tradlittlemips     29 64bit-bfd               = elf64-tradlittlemips
 32 32bit-emul              = elf32ltsmip              30 32bit-emul              = elf32ltsmip
 33 64bit-emul              = elf64ltsmip              31 64bit-emul              = elf64ltsmip
 34 else                                               32 else
 35 32bit-tool-archpref     = mips                     33 32bit-tool-archpref     = mips
 36 64bit-tool-archpref     = mips64                   34 64bit-tool-archpref     = mips64
 37 32bit-bfd               = elf32-tradbigmips        35 32bit-bfd               = elf32-tradbigmips
 38 64bit-bfd               = elf64-tradbigmips        36 64bit-bfd               = elf64-tradbigmips
 39 32bit-emul              = elf32btsmip              37 32bit-emul              = elf32btsmip
 40 64bit-emul              = elf64btsmip              38 64bit-emul              = elf64btsmip
 41 endif                                              39 endif
 42                                                    40 
 43 ifdef CONFIG_32BIT                                 41 ifdef CONFIG_32BIT
 44 tool-archpref           = $(32bit-tool-archpre     42 tool-archpref           = $(32bit-tool-archpref)
 45 UTS_MACHINE             := mips                    43 UTS_MACHINE             := mips
 46 endif                                              44 endif
 47 ifdef CONFIG_64BIT                                 45 ifdef CONFIG_64BIT
 48 tool-archpref           = $(64bit-tool-archpre     46 tool-archpref           = $(64bit-tool-archpref)
 49 UTS_MACHINE             := mips64                  47 UTS_MACHINE             := mips64
 50 endif                                              48 endif
 51                                                    49 
 52 ifdef cross_compiling                          !!  50 ifneq ($(SUBARCH),$(ARCH))
 53   ifeq ($(CROSS_COMPILE),)                         51   ifeq ($(CROSS_COMPILE),)
 54     CROSS_COMPILE := $(call cc-cross-prefix, $     52     CROSS_COMPILE := $(call cc-cross-prefix, $(tool-archpref)-linux-  $(tool-archpref)-linux-gnu-  $(tool-archpref)-unknown-linux-gnu-)
 55   endif                                            53   endif
 56 endif                                              54 endif
 57                                                    55 
 58 ifdef CONFIG_FUNCTION_GRAPH_TRACER                 56 ifdef CONFIG_FUNCTION_GRAPH_TRACER
 59   ifndef KBUILD_MCOUNT_RA_ADDRESS                  57   ifndef KBUILD_MCOUNT_RA_ADDRESS
 60     ifeq ($(call cc-option-yn,-mmcount-ra-addr     58     ifeq ($(call cc-option-yn,-mmcount-ra-address), y)
 61       cflags-y += -mmcount-ra-address -DKBUILD     59       cflags-y += -mmcount-ra-address -DKBUILD_MCOUNT_RA_ADDRESS
 62     endif                                          60     endif
 63   endif                                            61   endif
 64 endif                                              62 endif
 65 cflags-y += $(call cc-option, -mno-check-zero-     63 cflags-y += $(call cc-option, -mno-check-zero-division)
 66                                                    64 
 67 ifdef CONFIG_32BIT                                 65 ifdef CONFIG_32BIT
 68 ld-emul                 = $(32bit-emul)            66 ld-emul                 = $(32bit-emul)
 69 vmlinux-32              = vmlinux                  67 vmlinux-32              = vmlinux
 70 vmlinux-64              = vmlinux.64               68 vmlinux-64              = vmlinux.64
 71                                                    69 
 72 cflags-y                += -mabi=32                70 cflags-y                += -mabi=32
 73 endif                                              71 endif
 74                                                    72 
 75 ifdef CONFIG_64BIT                                 73 ifdef CONFIG_64BIT
 76 ld-emul                 = $(64bit-emul)            74 ld-emul                 = $(64bit-emul)
 77 vmlinux-32              = vmlinux.32               75 vmlinux-32              = vmlinux.32
 78 vmlinux-64              = vmlinux                  76 vmlinux-64              = vmlinux
 79                                                    77 
 80 cflags-y                += -mabi=64                78 cflags-y                += -mabi=64
 81 endif                                              79 endif
 82                                                    80 
 83 all-$(CONFIG_BOOT_ELF32)        := $(vmlinux-3     81 all-$(CONFIG_BOOT_ELF32)        := $(vmlinux-32)
 84 all-$(CONFIG_BOOT_ELF64)        := $(vmlinux-6     82 all-$(CONFIG_BOOT_ELF64)        := $(vmlinux-64)
 85 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz         83 all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlinuz
 86                                                    84 
 87 #                                                  85 #
 88 # GCC uses -G 0 -mabicalls -fpic as default.       86 # 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 thin     87 # code since it only slows down the whole thing.  At some point we might make
 90 # use of global pointer optimizations but thei     88 # use of global pointer optimizations but their use of $28 conflicts with
 91 # the current pointer optimization.                89 # the current pointer optimization.
 92 #                                                  90 #
 93 # The DECStation requires an ECOFF kernel for      91 # The DECStation requires an ECOFF kernel for remote booting, other MIPS
 94 # machines may also.  Since BFD is incredibly      92 # machines may also.  Since BFD is incredibly buggy with respect to
 95 # crossformat linking we rely on the elf2ecoff     93 # crossformat linking we rely on the elf2ecoff tool for format conversion.
 96 #                                                  94 #
 97 cflags-y                        += -G 0 -mno-a     95 cflags-y                        += -G 0 -mno-abicalls -fno-pic -pipe
 98 cflags-y                        += -msoft-floa !!  96 cflags-y                        += -msoft-float
 99 LDFLAGS_vmlinux                 += -G 0 -stati     97 LDFLAGS_vmlinux                 += -G 0 -static -n -nostdlib
100 KBUILD_AFLAGS_MODULE            += -mlong-call     98 KBUILD_AFLAGS_MODULE            += -mlong-calls
101 KBUILD_CFLAGS_MODULE            += -mlong-call     99 KBUILD_CFLAGS_MODULE            += -mlong-calls
102                                                   100 
103 ifeq ($(CONFIG_RELOCATABLE),y)                    101 ifeq ($(CONFIG_RELOCATABLE),y)
104 LDFLAGS_vmlinux                 += --emit-relo    102 LDFLAGS_vmlinux                 += --emit-relocs
105 endif                                             103 endif
106                                                   104 
                                                   >> 105 #
                                                   >> 106 # pass -msoft-float to GAS if it supports it.  However on newer binutils
                                                   >> 107 # (specifically newer than 2.24.51.20140728) we then also need to explicitly
                                                   >> 108 # set ".set hardfloat" in all files which manipulate floating point registers.
                                                   >> 109 #
                                                   >> 110 ifneq ($(call as-option,-Wa$(comma)-msoft-float,),)
                                                   >> 111         cflags-y                += -DGAS_HAS_SET_HARDFLOAT -Wa,-msoft-float
                                                   >> 112 endif
                                                   >> 113 
107 cflags-y += -ffreestanding                        114 cflags-y += -ffreestanding
108                                                   115 
                                                   >> 116 #
                                                   >> 117 # We explicitly add the endianness specifier if needed, this allows
                                                   >> 118 # to compile kernels with a toolchain for the other endianness. We
                                                   >> 119 # carefully avoid to add it redundantly because gcc 3.3/3.4 complains
                                                   >> 120 # when fed the toolchain default!
                                                   >> 121 #
                                                   >> 122 # Certain gcc versions up to gcc 4.1.1 (probably 4.2-subversion as of
                                                   >> 123 # 2006-10-10 don't properly change the predefined symbols if -EB / -EL
                                                   >> 124 # are used, so we kludge that here.  A bug has been filed at
                                                   >> 125 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29413.
                                                   >> 126 #
                                                   >> 127 # clang doesn't suffer from these issues and our checks against -dumpmachine
                                                   >> 128 # don't work so well when cross compiling, since without providing --target
                                                   >> 129 # clang's output will be based upon the build machine. So for clang we simply
                                                   >> 130 # unconditionally specify -EB or -EL as appropriate.
                                                   >> 131 #
                                                   >> 132 ifdef CONFIG_CC_IS_CLANG
109 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -EB    133 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += -EB
110 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -EL    134 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += -EL
                                                   >> 135 else
                                                   >> 136 undef-all += -UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__
                                                   >> 137 undef-all += -UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__
                                                   >> 138 predef-be += -DMIPSEB -D_MIPSEB -D__MIPSEB -D__MIPSEB__
                                                   >> 139 predef-le += -DMIPSEL -D_MIPSEL -D__MIPSEL -D__MIPSEL__
                                                   >> 140 cflags-$(CONFIG_CPU_BIG_ENDIAN)         += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' && echo -EB $(undef-all) $(predef-be))
                                                   >> 141 cflags-$(CONFIG_CPU_LITTLE_ENDIAN)      += $(shell $(CC) -dumpmachine |grep -q 'mips.*el-.*' || echo -EL $(undef-all) $(predef-le))
                                                   >> 142 endif
111                                                   143 
112 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-o    144 cflags-$(CONFIG_SB1XXX_CORELIS) += $(call cc-option,-mno-sched-prolog) \
113                                    -fno-omit-f    145                                    -fno-omit-frame-pointer
114                                                   146 
115 # Some distribution-specific toolchains might     147 # Some distribution-specific toolchains might pass the -fstack-check
116 # option during the build, which adds a simple    148 # option during the build, which adds a simple stack-probe at the beginning
117 # of every function.  This stack probe is to e    149 # of every function.  This stack probe is to ensure that there is enough
118 # stack space, else a SEGV is generated.  This    150 # stack space, else a SEGV is generated.  This is not desirable for MIPS
119 # as kernel stacks are small, placed in unmapp    151 # as kernel stacks are small, placed in unmapped virtual memory, and do not
120 # grow when overflowed.  Especially on SGI IP2    152 # grow when overflowed.  Especially on SGI IP27 platforms, this check will
121 # lead to a NULL pointer dereference in _raw_s    153 # lead to a NULL pointer dereference in _raw_spin_lock_irq.
122 #                                                 154 #
123 # In disassembly, this stack probe appears at     155 # In disassembly, this stack probe appears at the top of a function as:
124 #    sd         zero,<offset>(sp)                 156 #    sd         zero,<offset>(sp)
125 # Where <offset> is a negative value.             157 # Where <offset> is a negative value.
126 #                                                 158 #
127 cflags-y += -fno-stack-check                      159 cflags-y += -fno-stack-check
128                                                   160 
129 # binutils from v2.35 when built with --enable << 
130 # supports an -mfix-loongson3-llsc flag which  << 
131 # instruction to work around a CPU bug (see __ << 
132 # for a description).                          << 
133 #                                              << 
134 # We disable this in order to prevent the asse << 
135 # instruction that labels refer to, ie. if we  << 
136 #                                              << 
137 # 1: ll v0, 0(a0)                              << 
138 #                                              << 
139 # ...then with the assembler fix applied the l << 
140 # instruction inserted by the assembler, and i << 
141 # exception table the table would no longer co << 
142 # instruction.                                 << 
143 #                                              << 
144 # Avoid this by explicitly disabling that asse << 
145 #                                              << 
146 cflags-y += $(call cc-option,-Wa$(comma)-mno-f << 
147                                                << 
148 #                                                 161 #
149 # CPU-dependent compiler/assembler options for    162 # CPU-dependent compiler/assembler options for optimization.
150 #                                                 163 #
151 cflags-$(CONFIG_CPU_R3000)      += $(call cc-o !! 164 cflags-$(CONFIG_CPU_R3000)      += -march=r3000
152 cflags-$(CONFIG_CPU_R4300)      += $(call cc-o !! 165 cflags-$(CONFIG_CPU_TX39XX)     += -march=r3900
153 cflags-$(CONFIG_CPU_R4X00)      += $(call cc-o !! 166 cflags-$(CONFIG_CPU_R4300)      += -march=r4300 -Wa,--trap
154 cflags-$(CONFIG_CPU_TX49XX)     += $(call cc-o !! 167 cflags-$(CONFIG_CPU_VR41XX)     += -march=r4100 -Wa,--trap
                                                   >> 168 cflags-$(CONFIG_CPU_R4X00)      += -march=r4600 -Wa,--trap
                                                   >> 169 cflags-$(CONFIG_CPU_TX49XX)     += -march=r4600 -Wa,--trap
155 cflags-$(CONFIG_CPU_MIPS32_R1)  += -march=mips    170 cflags-$(CONFIG_CPU_MIPS32_R1)  += -march=mips32 -Wa,--trap
156 cflags-$(CONFIG_CPU_MIPS32_R2)  += -march=mips    171 cflags-$(CONFIG_CPU_MIPS32_R2)  += -march=mips32r2 -Wa,--trap
157 cflags-$(CONFIG_CPU_MIPS32_R5)  += -march=mips << 
158 cflags-$(CONFIG_CPU_MIPS32_R6)  += -march=mips    172 cflags-$(CONFIG_CPU_MIPS32_R6)  += -march=mips32r6 -Wa,--trap -modd-spreg
159 cflags-$(CONFIG_CPU_MIPS64_R1)  += -march=mips    173 cflags-$(CONFIG_CPU_MIPS64_R1)  += -march=mips64 -Wa,--trap
160 cflags-$(CONFIG_CPU_MIPS64_R2)  += -march=mips    174 cflags-$(CONFIG_CPU_MIPS64_R2)  += -march=mips64r2 -Wa,--trap
161 cflags-$(CONFIG_CPU_MIPS64_R5)  += -march=mips << 
162 cflags-$(CONFIG_CPU_MIPS64_R6)  += -march=mips    175 cflags-$(CONFIG_CPU_MIPS64_R6)  += -march=mips64r6 -Wa,--trap
163 cflags-$(CONFIG_CPU_P5600)      += $(call cc-o !! 176 cflags-$(CONFIG_CPU_R5000)      += -march=r5000 -Wa,--trap
164                         -Wa,--trap -modd-spreg !! 177 cflags-$(CONFIG_CPU_R5432)      += $(call cc-option,-march=r5400,-march=r5000) \
165 cflags-$(CONFIG_CPU_R5000)      += $(call cc-o << 
166                         -Wa,--trap                178                         -Wa,--trap
167 cflags-$(CONFIG_CPU_R5500)      += $(call cc-o !! 179 cflags-$(CONFIG_CPU_R5500)      += $(call cc-option,-march=r5500,-march=r5000) \
168                         -Wa,--trap                180                         -Wa,--trap
169 cflags-$(CONFIG_CPU_NEVADA)     += $(call cc-o !! 181 cflags-$(CONFIG_CPU_NEVADA)     += $(call cc-option,-march=rm5200,-march=r5000) \
170                         -Wa,--trap                182                         -Wa,--trap
171 cflags-$(CONFIG_CPU_RM7000)     += $(call cc-o !! 183 cflags-$(CONFIG_CPU_RM7000)     += $(call cc-option,-march=rm7000,-march=r5000) \
172                         -Wa,--trap                184                         -Wa,--trap
173 cflags-$(CONFIG_CPU_SB1)        += $(call cc-o !! 185 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-march=sb1,-march=r5000) \
174                         -Wa,--trap                186                         -Wa,--trap
175 cflags-$(CONFIG_CPU_SB1)        += $(call cc-o    187 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-mno-mdmx)
176 cflags-$(CONFIG_CPU_SB1)        += $(call cc-o    188 cflags-$(CONFIG_CPU_SB1)        += $(call cc-option,-mno-mips3d)
177 cflags-$(CONFIG_CPU_R10000)     += $(call cc-o !! 189 cflags-$(CONFIG_CPU_R8000)      += -march=r8000 -Wa,--trap
                                                   >> 190 cflags-$(CONFIG_CPU_R10000)     += $(call cc-option,-march=r10000,-march=r8000) \
178                         -Wa,--trap                191                         -Wa,--trap
179 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -march=o !! 192 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += $(call cc-option,-march=octeon) -Wa,--trap
                                                   >> 193 ifeq (,$(findstring march=octeon, $(cflags-$(CONFIG_CPU_CAVIUM_OCTEON))))
                                                   >> 194 cflags-$(CONFIG_CPU_CAVIUM_OCTEON) += -Wa,-march=octeon
                                                   >> 195 endif
180 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-    196 cflags-$(CONFIG_CAVIUM_CN63XXP1) += -Wa,-mfix-cn63xxp1
181 cflags-$(CONFIG_CPU_BMIPS)      += -march=mips !! 197 cflags-$(CONFIG_CPU_BMIPS)      += -march=mips32 -Wa,-mips32 -Wa,--trap
182                                                << 
183 cflags-$(CONFIG_CPU_LOONGSON2E) += \           << 
184                         $(call cc-option,-marc << 
185 cflags-$(CONFIG_CPU_LOONGSON2F) += \           << 
186                         $(call cc-option,-marc << 
187 # Some -march= flags enable MMI instructions,  << 
188 # support being enabled alongside -msoft-float << 
189 cflags-$(CONFIG_CPU_LOONGSON2EF) += $(call cc- << 
190 cflags-$(CONFIG_CPU_LOONGSON64) += \           << 
191                         $(call cc-option,-marc << 
192 cflags-$(CONFIG_CPU_LOONGSON64) += $(call cc-o << 
193                                                   198 
194 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)  += $(c    199 cflags-$(CONFIG_CPU_R4000_WORKAROUNDS)  += $(call cc-option,-mfix-r4000,)
195 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)  += $(c    200 cflags-$(CONFIG_CPU_R4400_WORKAROUNDS)  += $(call cc-option,-mfix-r4400,)
196 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)  += $(c    201 cflags-$(CONFIG_CPU_DADDI_WORKAROUNDS)  += $(call cc-option,-mno-daddi,)
197 ifdef CONFIG_CPU_LOONGSON2F_WORKAROUNDS        << 
198 cflags-$(CONFIG_CPU_NOP_WORKAROUNDS) += -Wa,-m << 
199 cflags-$(CONFIG_CPU_JUMP_WORKAROUNDS) += -Wa,- << 
200 endif                                          << 
201                                                << 
202 #                                              << 
203 # Some versions of binutils, not currently mai << 
204 # an -mfix-loongson3-llsc flag which emits a s << 
205 # to work around a CPU bug (see __SYNC_loongso << 
206 # description).                                << 
207 #                                              << 
208 # We disable this in order to prevent the asse << 
209 # instruction that labels refer to, ie. if we  << 
210 #                                              << 
211 # 1: ll v0, 0(a0)                              << 
212 #                                              << 
213 # ...then with the assembler fix applied the l << 
214 # instruction inserted by the assembler, and i << 
215 # exception table the table would no longer co << 
216 # instruction.                                 << 
217 #                                              << 
218 # Avoid this by explicitly disabling that asse << 
219 # binutils does not merge support for the flag << 
220 # this later - for now it ensures vendor toolc << 
221 #                                              << 
222 cflags-$(CONFIG_CPU_LOONGSON64) += $(call as-o << 
223                                                   202 
224 # For smartmips configurations, there are hund    203 # For smartmips configurations, there are hundreds of warnings due to ISA overrides
225 # in assembly and header files. smartmips is o    204 # in assembly and header files. smartmips is only supported for MIPS32r1 onwards
226 # and there is no support for 64-bit. Various     205 # and there is no support for 64-bit. Various '.set mips2' or '.set mips3' or
227 # similar directives in the kernel will spam t    206 # similar directives in the kernel will spam the build logs with the following warnings:
228 # Warning: the `smartmips' extension requires     207 # Warning: the `smartmips' extension requires MIPS32 revision 1 or greater
229 # or                                              208 # or
230 # Warning: the 64-bit MIPS architecture does n    209 # Warning: the 64-bit MIPS architecture does not support the `smartmips' extension
231 # Pass -Wa,--no-warn to disable all assembler     210 # Pass -Wa,--no-warn to disable all assembler warnings until the kernel code has
232 # been fixed properly.                            211 # been fixed properly.
233 mips-cflags                             := $(c    212 mips-cflags                             := $(cflags-y)
234 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)              213 ifeq ($(CONFIG_CPU_HAS_SMARTMIPS),y)
235 smartmips-ase                           := $(c    214 smartmips-ase                           := $(call cc-option-yn,$(mips-cflags) -msmartmips)
236 cflags-$(smartmips-ase)                 += -ms    215 cflags-$(smartmips-ase)                 += -msmartmips -Wa,--no-warn
237 endif                                             216 endif
238 ifeq ($(CONFIG_CPU_MICROMIPS),y)                  217 ifeq ($(CONFIG_CPU_MICROMIPS),y)
239 micromips-ase                           := $(c    218 micromips-ase                           := $(call cc-option-yn,$(mips-cflags) -mmicromips)
240 cflags-$(micromips-ase)                 += -mm    219 cflags-$(micromips-ase)                 += -mmicromips
241 endif                                             220 endif
242 ifeq ($(CONFIG_CPU_HAS_MSA),y)                    221 ifeq ($(CONFIG_CPU_HAS_MSA),y)
243 toolchain-msa                           := $(c    222 toolchain-msa                           := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(comma)-mmsa)
244 cflags-$(toolchain-msa)                 += -DT    223 cflags-$(toolchain-msa)                 += -DTOOLCHAIN_SUPPORTS_MSA
245 endif                                             224 endif
246 toolchain-virt                          := $(c    225 toolchain-virt                          := $(call cc-option-yn,$(mips-cflags) -mvirt)
247 cflags-$(toolchain-virt)                += -DT    226 cflags-$(toolchain-virt)                += -DTOOLCHAIN_SUPPORTS_VIRT
248 # For -mmicromips, use -Wa,-fatal-warnings to     227 # For -mmicromips, use -Wa,-fatal-warnings to catch unsupported -mxpa which
249 # only warns                                      228 # only warns
250 xpa-cflags-y                            := $(m    229 xpa-cflags-y                            := $(mips-cflags)
251 xpa-cflags-$(micromips-ase)             += -mm    230 xpa-cflags-$(micromips-ase)             += -mmicromips -Wa$(comma)-fatal-warnings
252 toolchain-xpa                           := $(c    231 toolchain-xpa                           := $(call cc-option-yn,$(xpa-cflags-y) -mxpa)
253 cflags-$(toolchain-xpa)                 += -DT    232 cflags-$(toolchain-xpa)                 += -DTOOLCHAIN_SUPPORTS_XPA
254 toolchain-crc                           := $(c    233 toolchain-crc                           := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mcrc)
255 cflags-$(toolchain-crc)                 += -DT    234 cflags-$(toolchain-crc)                 += -DTOOLCHAIN_SUPPORTS_CRC
256 toolchain-dsp                           := $(c    235 toolchain-dsp                           := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mdsp)
257 cflags-$(toolchain-dsp)                 += -DT    236 cflags-$(toolchain-dsp)                 += -DTOOLCHAIN_SUPPORTS_DSP
258 toolchain-ginv                          := $(c    237 toolchain-ginv                          := $(call cc-option-yn,$(mips-cflags) -Wa$(comma)-mginv)
259 cflags-$(toolchain-ginv)                += -DT    238 cflags-$(toolchain-ginv)                += -DTOOLCHAIN_SUPPORTS_GINV
260                                                   239 
261 #                                                 240 #
262 # Firmware support                                241 # Firmware support
263 #                                                 242 #
264 libs-$(CONFIG_FW_ARC)           += arch/mips/f    243 libs-$(CONFIG_FW_ARC)           += arch/mips/fw/arc/
265 libs-$(CONFIG_FW_CFE)           += arch/mips/f    244 libs-$(CONFIG_FW_CFE)           += arch/mips/fw/cfe/
266 libs-$(CONFIG_FW_SNIPROM)       += arch/mips/f    245 libs-$(CONFIG_FW_SNIPROM)       += arch/mips/fw/sni/
267 libs-y                          += arch/mips/f    246 libs-y                          += arch/mips/fw/lib/
268                                                   247 
269 #                                                 248 #
270 # Kernel compression                              249 # Kernel compression
271 #                                                 250 #
272 ifdef CONFIG_SYS_SUPPORTS_ZBOOT                   251 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
273 COMPRESSION_FNAME               = vmlinuz         252 COMPRESSION_FNAME               = vmlinuz
274 else                                              253 else
275 COMPRESSION_FNAME               = vmlinux         254 COMPRESSION_FNAME               = vmlinux
276 endif                                             255 endif
277                                                   256 
278 #                                                 257 #
279 # Board-dependent options and extra files         258 # Board-dependent options and extra files
280 #                                                 259 #
281 include $(srctree)/arch/mips/Kbuild.platforms  !! 260 include arch/mips/Kbuild.platforms
282                                                   261 
283 ifdef CONFIG_PHYSICAL_START                       262 ifdef CONFIG_PHYSICAL_START
284 load-y                                  = $(CO    263 load-y                                  = $(CONFIG_PHYSICAL_START)
285 endif                                             264 endif
286                                                   265 
287 entry-y                         = $(shell $(ob    266 entry-y                         = $(shell $(objtree)/arch/mips/tools/elf-entry vmlinux)
288 cflags-y                        += -I$(srctree    267 cflags-y                        += -I$(srctree)/arch/mips/include/asm/mach-generic
289 drivers-$(CONFIG_PCI)           += arch/mips/p    268 drivers-$(CONFIG_PCI)           += arch/mips/pci/
290                                                   269 
291 #                                                 270 #
292 # Automatically detect the build format. By de    271 # Automatically detect the build format. By default we choose
293 # the elf format according to the load address    272 # the elf format according to the load address.
294 # We can always force a build with a 64-bits s    273 # We can always force a build with a 64-bits symbol format by
295 # passing 'KBUILD_SYM32=no' option to the make    274 # passing 'KBUILD_SYM32=no' option to the make's command line.
296 #                                                 275 #
297 ifdef CONFIG_64BIT                                276 ifdef CONFIG_64BIT
298   ifndef KBUILD_SYM32                             277   ifndef KBUILD_SYM32
299     ifeq ($(shell expr $(load-y) \< 0xffffffff    278     ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
300       KBUILD_SYM32 = $(call cc-option-yn, -msy !! 279       KBUILD_SYM32 = y
301     endif                                         280     endif
302   endif                                           281   endif
303                                                   282 
304   ifeq ($(KBUILD_SYM32), y)                    !! 283   ifeq ($(KBUILD_SYM32)$(call cc-option-yn,-msym32), yy)
305     cflags-$(KBUILD_SYM32) += -msym32 -DKBUILD !! 284     cflags-y += -msym32 -DKBUILD_64BIT_SYM32
306   else                                            285   else
307     ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)     286     ifeq ($(CONFIG_CPU_DADDI_WORKAROUNDS), y)
308       $(error CONFIG_CPU_DADDI_WORKAROUNDS uns    287       $(error CONFIG_CPU_DADDI_WORKAROUNDS unsupported without -msym32)
309     endif                                         288     endif
310   endif                                           289   endif
311 endif                                             290 endif
312                                                   291 
313 # When linking a 32-bit executable the LLVM li << 
314 # 32-bit load address that has been sign-exten << 
315 # remove the upper 32 bits then, as it is safe << 
316 # linkers.                                     << 
317 ifdef CONFIG_64BIT                             << 
318         load-ld                 = $(load-y)    << 
319 else                                           << 
320         load-ld                 = $(subst 0xff << 
321 endif                                          << 
322                                                << 
323 KBUILD_AFLAGS   += $(cflags-y)                    292 KBUILD_AFLAGS   += $(cflags-y)
324 KBUILD_CFLAGS   += $(cflags-y)                    293 KBUILD_CFLAGS   += $(cflags-y)
325 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(lo !! 294 KBUILD_CPPFLAGS += -DVMLINUX_LOAD_ADDRESS=$(load-y)
326 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoff    295 KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
327                                                   296 
328 bootvars-y      = VMLINUX_LOAD_ADDRESS=$(load-    297 bootvars-y      = VMLINUX_LOAD_ADDRESS=$(load-y) \
329                   LINKER_LOAD_ADDRESS=$(load-l << 
330                   VMLINUX_ENTRY_ADDRESS=$(entr    298                   VMLINUX_ENTRY_ADDRESS=$(entry-y) \
331                   PLATFORM="$(platform-y)" \      299                   PLATFORM="$(platform-y)" \
332                   ITS_INPUTS="$(its-y)"           300                   ITS_INPUTS="$(its-y)"
333 ifdef CONFIG_32BIT                                301 ifdef CONFIG_32BIT
334 bootvars-y      += ADDR_BITS=32                   302 bootvars-y      += ADDR_BITS=32
335 endif                                             303 endif
336 ifdef CONFIG_64BIT                                304 ifdef CONFIG_64BIT
337 bootvars-y      += ADDR_BITS=64                   305 bootvars-y      += ADDR_BITS=64
338 endif                                             306 endif
339                                                   307 
340 # This is required to get dwarf unwinding tabl    308 # This is required to get dwarf unwinding tables into .debug_frame
341 # instead of .eh_frame so we don't discard the    309 # instead of .eh_frame so we don't discard them.
342 KBUILD_CFLAGS += -fno-asynchronous-unwind-tabl    310 KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
343                                                   311 
344 KBUILD_LDFLAGS          += -m $(ld-emul)          312 KBUILD_LDFLAGS          += -m $(ld-emul)
345                                                   313 
346 ifdef need-compiler                            !! 314 ifdef CONFIG_MIPS
347 CHECKFLAGS += $(shell $(CC) $(KBUILD_CPPFLAGS) !! 315 CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
348         grep -E -vw '__GNUC_(MINOR_|PATCHLEVEL !! 316         egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
349         sed -e "s/^\#define /-D'/" -e "s/ /'='    317         sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
350 endif                                             318 endif
351                                                   319 
352 OBJCOPYFLAGS            += --remove-section=.r    320 OBJCOPYFLAGS            += --remove-section=.reginfo
353                                                   321 
                                                   >> 322 head-y := arch/mips/kernel/head.o
                                                   >> 323 
354 libs-y                  += arch/mips/lib/         324 libs-y                  += arch/mips/lib/
355 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/ma    325 libs-$(CONFIG_MIPS_FP_SUPPORT) += arch/mips/math-emu/
356                                                   326 
357 drivers-y                       += arch/mips/c !! 327 # See arch/mips/Kbuild for content of core part of the kernel
                                                   >> 328 core-y += arch/mips/
                                                   >> 329 
                                                   >> 330 drivers-$(CONFIG_MIPS_CRC_SUPPORT) += arch/mips/crypto/
                                                   >> 331 drivers-$(CONFIG_OPROFILE)      += arch/mips/oprofile/
358                                                   332 
359 # suspend and hibernation support                 333 # suspend and hibernation support
360 drivers-$(CONFIG_PM)    += arch/mips/power/       334 drivers-$(CONFIG_PM)    += arch/mips/power/
361                                                   335 
362 # boot image targets (arch/mips/boot/)            336 # boot image targets (arch/mips/boot/)
363 boot-y                  := vmlinux.bin            337 boot-y                  := vmlinux.bin
364 boot-y                  += vmlinux.ecoff          338 boot-y                  += vmlinux.ecoff
365 boot-y                  += vmlinux.srec           339 boot-y                  += vmlinux.srec
                                                   >> 340 ifeq ($(shell expr $(load-y) \< 0xffffffff80000000 2> /dev/null), 0)
366 boot-y                  += uImage                 341 boot-y                  += uImage
367 boot-y                  += uImage.bin             342 boot-y                  += uImage.bin
368 boot-y                  += uImage.bz2             343 boot-y                  += uImage.bz2
369 boot-y                  += uImage.gz              344 boot-y                  += uImage.gz
370 boot-y                  += uImage.lzma            345 boot-y                  += uImage.lzma
371 boot-y                  += uImage.lzo             346 boot-y                  += uImage.lzo
                                                   >> 347 endif
372 boot-y                  += vmlinux.itb            348 boot-y                  += vmlinux.itb
373 boot-y                  += vmlinux.gz.itb         349 boot-y                  += vmlinux.gz.itb
374 boot-y                  += vmlinux.bz2.itb        350 boot-y                  += vmlinux.bz2.itb
375 boot-y                  += vmlinux.lzma.itb       351 boot-y                  += vmlinux.lzma.itb
376 boot-y                  += vmlinux.lzo.itb        352 boot-y                  += vmlinux.lzo.itb
377                                                   353 
378 # compressed boot image targets (arch/mips/boo    354 # compressed boot image targets (arch/mips/boot/compressed/)
379 bootz-y                 := vmlinuz                355 bootz-y                 := vmlinuz
380 bootz-y                 += vmlinuz.bin            356 bootz-y                 += vmlinuz.bin
381 bootz-y                 += vmlinuz.ecoff          357 bootz-y                 += vmlinuz.ecoff
382 bootz-y                 += vmlinuz.srec           358 bootz-y                 += vmlinuz.srec
                                                   >> 359 ifeq ($(shell expr $(zload-y) \< 0xffffffff80000000 2> /dev/null), 0)
383 bootz-y                 += uzImage.bin            360 bootz-y                 += uzImage.bin
384 bootz-y                 += vmlinuz.itb         !! 361 endif
                                                   >> 362 
                                                   >> 363 ifdef CONFIG_LASAT
                                                   >> 364 rom.bin rom.sw: vmlinux
                                                   >> 365         $(Q)$(MAKE) $(build)=arch/mips/lasat/image \
                                                   >> 366                 $(bootvars-y) $@
                                                   >> 367 endif
385                                                   368 
386 #                                                 369 #
387 # Some machines like the Indy need 32-bit ELF     370 # Some machines like the Indy need 32-bit ELF binaries for booting purposes.
388 # Other need ECOFF, so we build a 32-bit ELF b    371 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
389 # convert to ECOFF using elf2ecoff.               372 # convert to ECOFF using elf2ecoff.
390 #                                                 373 #
391 quiet_cmd_32 = OBJCOPY $@                         374 quiet_cmd_32 = OBJCOPY $@
392         cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(    375         cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
393 vmlinux.32: vmlinux                               376 vmlinux.32: vmlinux
394         $(call cmd,32)                            377         $(call cmd,32)
395                                                   378 
396 #                                                 379 #
397 # The 64-bit ELF tools are pretty broken so at    380 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
398 # ELF files from 32-bit files by conversion.      381 # ELF files from 32-bit files by conversion.
399 #                                                 382 #
400 quiet_cmd_64 = OBJCOPY $@                         383 quiet_cmd_64 = OBJCOPY $@
401         cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(    384         cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
402 vmlinux.64: vmlinux                               385 vmlinux.64: vmlinux
403         $(call cmd,64)                            386         $(call cmd,64)
404                                                   387 
405 all:    $(all-y) $(KBUILD_DTBS)                   388 all:    $(all-y) $(KBUILD_DTBS)
406                                                   389 
407 # boot                                            390 # boot
408 $(boot-y): $(vmlinux-32) FORCE                    391 $(boot-y): $(vmlinux-32) FORCE
409         $(Q)$(MAKE) $(build)=arch/mips/boot VM    392         $(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
410                 $(bootvars-y) arch/mips/boot/$    393                 $(bootvars-y) arch/mips/boot/$@
411                                                   394 
412 ifdef CONFIG_SYS_SUPPORTS_ZBOOT                   395 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
413 # boot/compressed                                 396 # boot/compressed
414 $(bootz-y): $(vmlinux-32) FORCE                   397 $(bootz-y): $(vmlinux-32) FORCE
415         $(Q)$(MAKE) $(build)=arch/mips/boot/co    398         $(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
416                 $(bootvars-y) 32bit-bfd=$(32bi !! 399                 $(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
417 else                                              400 else
418 vmlinuz: FORCE                                    401 vmlinuz: FORCE
419         @echo '   CONFIG_SYS_SUPPORTS_ZBOOT is    402         @echo '   CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
420         /bin/false                                403         /bin/false
421 endif                                             404 endif
422                                                   405 
423                                                   406 
424 CLEAN_FILES += vmlinux.32 vmlinux.64              407 CLEAN_FILES += vmlinux.32 vmlinux.64
425                                                   408 
426 # device-trees                                    409 # device-trees
427 core-y += arch/mips/boot/dts/                     410 core-y += arch/mips/boot/dts/
428                                                   411 
429 archprepare:                                      412 archprepare:
430 ifdef CONFIG_MIPS32_N32                           413 ifdef CONFIG_MIPS32_N32
431         @$(kecho) '  Checking missing-syscalls    414         @$(kecho) '  Checking missing-syscalls for N32'
432         $(Q)$(MAKE) $(build)=. missing-syscall    415         $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=n32"
433 endif                                             416 endif
434 ifdef CONFIG_MIPS32_O32                           417 ifdef CONFIG_MIPS32_O32
435         @$(kecho) '  Checking missing-syscalls    418         @$(kecho) '  Checking missing-syscalls for O32'
436         $(Q)$(MAKE) $(build)=. missing-syscall    419         $(Q)$(MAKE) $(build)=. missing-syscalls missing_syscalls_flags="-mabi=32"
437 endif                                             420 endif
438                                                   421 
439 install:                                          422 install:
440         $(Q)install -D -m 755 vmlinux $(INSTAL    423         $(Q)install -D -m 755 vmlinux $(INSTALL_PATH)/vmlinux-$(KERNELRELEASE)
441 ifdef CONFIG_SYS_SUPPORTS_ZBOOT                   424 ifdef CONFIG_SYS_SUPPORTS_ZBOOT
442         $(Q)install -D -m 755 vmlinuz $(INSTAL    425         $(Q)install -D -m 755 vmlinuz $(INSTALL_PATH)/vmlinuz-$(KERNELRELEASE)
443 endif                                             426 endif
444         $(Q)install -D -m 644 .config $(INSTAL    427         $(Q)install -D -m 644 .config $(INSTALL_PATH)/config-$(KERNELRELEASE)
445         $(Q)install -D -m 644 System.map $(INS    428         $(Q)install -D -m 644 System.map $(INSTALL_PATH)/System.map-$(KERNELRELEASE)
446                                                   429 
                                                   >> 430 archclean:
                                                   >> 431         $(Q)$(MAKE) $(clean)=arch/mips/boot
                                                   >> 432         $(Q)$(MAKE) $(clean)=arch/mips/boot/compressed
                                                   >> 433         $(Q)$(MAKE) $(clean)=arch/mips/boot/tools
                                                   >> 434         $(Q)$(MAKE) $(clean)=arch/mips/lasat
                                                   >> 435 
447 archheaders:                                      436 archheaders:
448         $(Q)$(MAKE) $(build)=arch/mips/kernel/    437         $(Q)$(MAKE) $(build)=arch/mips/kernel/syscalls all
449                                                   438 
450 define archhelp                                   439 define archhelp
451         echo '  install              - install    440         echo '  install              - install kernel into $(INSTALL_PATH)'
452         echo '  vmlinux.ecoff        - ECOFF b    441         echo '  vmlinux.ecoff        - ECOFF boot image'
453         echo '  vmlinux.bin          - Raw bin    442         echo '  vmlinux.bin          - Raw binary boot image'
454         echo '  vmlinux.srec         - SREC bo    443         echo '  vmlinux.srec         - SREC boot image'
455         echo '  vmlinux.32           - 64-bit     444         echo '  vmlinux.32           - 64-bit boot image wrapped in 32bits (IP22/IP32)'
456         echo '  vmlinuz              - Compres    445         echo '  vmlinuz              - Compressed boot(zboot) image'
457         echo '  vmlinuz.ecoff        - ECOFF z    446         echo '  vmlinuz.ecoff        - ECOFF zboot image'
458         echo '  vmlinuz.bin          - Raw bin    447         echo '  vmlinuz.bin          - Raw binary zboot image'
459         echo '  vmlinuz.srec         - SREC zb    448         echo '  vmlinuz.srec         - SREC zboot image'
460         echo '  uImage               - U-Boot     449         echo '  uImage               - U-Boot image'
461         echo '  uImage.bin           - U-Boot     450         echo '  uImage.bin           - U-Boot image (uncompressed)'
462         echo '  uImage.bz2           - U-Boot     451         echo '  uImage.bz2           - U-Boot image (bz2)'
463         echo '  uImage.gz            - U-Boot     452         echo '  uImage.gz            - U-Boot image (gzip)'
464         echo '  uImage.lzma          - U-Boot     453         echo '  uImage.lzma          - U-Boot image (lzma)'
465         echo '  uImage.lzo           - U-Boot     454         echo '  uImage.lzo           - U-Boot image (lzo)'
466         echo '  uzImage.bin          - U-Boot     455         echo '  uzImage.bin          - U-Boot image (self-extracting)'
467         echo                                      456         echo
468         echo '  These will be default as appro    457         echo '  These will be default as appropriate for a configured platform.'
469         echo                                      458         echo
470         echo '  If you are targeting a system     459         echo '  If you are targeting a system supported by generic kernels you may'
471         echo '  configure the kernel for a giv    460         echo '  configure the kernel for a given architecture target like so:'
472         echo                                      461         echo
473         echo '  {micro32,32,64}{r1,r2,r6}{el,}    462         echo '  {micro32,32,64}{r1,r2,r6}{el,}_defconfig <BOARDS="list of boards">'
474         echo                                      463         echo
475         echo '  Where BOARDS is some subset of    464         echo '  Where BOARDS is some subset of the following:'
476         for board in $(sort $(BOARDS)); do ech    465         for board in $(sort $(BOARDS)); do echo "    $${board}"; done
477         echo                                      466         echo
478         echo '  Specifically the following gen    467         echo '  Specifically the following generic default configurations are'
479         echo '  supported:'                       468         echo '  supported:'
480         echo                                      469         echo
481         $(foreach cfg,$(generic_defconfigs),      470         $(foreach cfg,$(generic_defconfigs),
482           printf "  %-24s - Build generic kern    471           printf "  %-24s - Build generic kernel for $(call describe_generic_defconfig,$(cfg))\n" $(cfg);)
483         echo                                      472         echo
484         echo '  The following legacy default c    473         echo '  The following legacy default configurations have been converted to'
485         echo '  generic and can still be used:    474         echo '  generic and can still be used:'
486         echo                                      475         echo
487         $(foreach cfg,$(sort $(legacy_defconfi    476         $(foreach cfg,$(sort $(legacy_defconfigs)),
488           printf "  %-24s - Build $($(cfg)-y)\    477           printf "  %-24s - Build $($(cfg)-y)\n" $(cfg);)
489         echo                                      478         echo
490         echo '  Otherwise, the following defau    479         echo '  Otherwise, the following default configurations are available:'
491 endef                                             480 endef
492                                                   481 
493 generic_config_dir = $(srctree)/arch/$(ARCH)/c    482 generic_config_dir = $(srctree)/arch/$(ARCH)/configs/generic
494 generic_defconfigs :=                             483 generic_defconfigs :=
495                                                   484 
496 #                                                 485 #
497 # If the user generates a generic kernel confi    486 # If the user generates a generic kernel configuration without specifying a
498 # list of boards to include the config fragmen    487 # list of boards to include the config fragments for, default to including all
499 # available board config fragments.               488 # available board config fragments.
500 #                                                 489 #
501 ifeq ($(BOARDS),)                                 490 ifeq ($(BOARDS),)
502 BOARDS = $(patsubst board-%.config,%,$(notdir     491 BOARDS = $(patsubst board-%.config,%,$(notdir $(wildcard $(generic_config_dir)/board-*.config)))
503 endif                                             492 endif
504                                                   493 
505 #                                                 494 #
506 # Generic kernel configurations which merge ge    495 # Generic kernel configurations which merge generic_defconfig with the
507 # appropriate config fragments from arch/mips/    496 # appropriate config fragments from arch/mips/configs/generic/, resulting in
508 # the ability to easily configure the kernel f    497 # the ability to easily configure the kernel for a given architecture,
509 # endianness & set of boards without duplicati    498 # endianness & set of boards without duplicating the needed configuration in
510 # hundreds of defconfig files.                    499 # hundreds of defconfig files.
511 #                                                 500 #
512 define gen_generic_defconfigs                     501 define gen_generic_defconfigs
513 $(foreach bits,$(1),$(foreach rev,$(2),$(forea    502 $(foreach bits,$(1),$(foreach rev,$(2),$(foreach endian,$(3),
514 target := $(bits)$(rev)$(filter el,$(endian))_    503 target := $(bits)$(rev)$(filter el,$(endian))_defconfig
515 generic_defconfigs += $$(target)                  504 generic_defconfigs += $$(target)
516 $$(target): $(generic_config_dir)/$(bits)$(rev    505 $$(target): $(generic_config_dir)/$(bits)$(rev).config
517 $$(target): $(generic_config_dir)/$(endian).co    506 $$(target): $(generic_config_dir)/$(endian).config
518 )))                                               507 )))
519 endef                                             508 endef
520                                                   509 
521 $(eval $(call gen_generic_defconfigs,32 64,r1     510 $(eval $(call gen_generic_defconfigs,32 64,r1 r2 r6,eb el))
522 $(eval $(call gen_generic_defconfigs,micro32,r    511 $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
523                                                   512 
524 define describe_generic_defconfig                 513 define describe_generic_defconfig
525 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(su    514 $(subst 32r,MIPS32 r,$(subst 64r,MIPS64 r,$(subst el, little endian,$(patsubst %_defconfig,%,$(1)))))
526 endef                                             515 endef
527                                                   516 
528 .PHONY: $(generic_defconfigs)                     517 .PHONY: $(generic_defconfigs)
529 $(generic_defconfigs):                            518 $(generic_defconfigs):
530         $(Q)$(CONFIG_SHELL) $(srctree)/scripts    519         $(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
531                 -m -O $(objtree) $(srctree)/ar    520                 -m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
532                 grep -Ev '^#'                     521                 grep -Ev '^#'
533         $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.c    522         $(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
534         $(Q)$(MAKE) -f $(srctree)/Makefile old    523         $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
535                 KCONFIG_CONFIG=$(objtree)/.con    524                 KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
536         $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(    525         $(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
537                 $(srctree) $(objtree) $(objtre    526                 $(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
538                 "$(origin BOARDS)" $(BOARDS)      527                 "$(origin BOARDS)" $(BOARDS)
539         $(Q)$(MAKE) -f $(srctree)/Makefile old    528         $(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
540                                                   529 
541 #                                                 530 #
542 # Prevent generic merge_config rules attemptin    531 # Prevent generic merge_config rules attempting to merge single fragments
543 #                                                 532 #
544 $(generic_config_dir)/%.config: ;                 533 $(generic_config_dir)/%.config: ;
545                                                   534 
546 #                                                 535 #
547 # Prevent direct use of generic_defconfig, whi    536 # Prevent direct use of generic_defconfig, which is intended to be used as the
548 # basis of the various ISA-specific targets ge    537 # basis of the various ISA-specific targets generated above.
549 #                                                 538 #
550 .PHONY: generic_defconfig                         539 .PHONY: generic_defconfig
551 generic_defconfig:                                540 generic_defconfig:
552         $(Q)echo "generic_defconfig is not int    541         $(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
553         $(Q)echo "used via an ISA-specific tar    542         $(Q)echo "used via an ISA-specific target from the following list:"
554         $(Q)echo                                  543         $(Q)echo
555         $(Q)for cfg in $(generic_defconfigs);     544         $(Q)for cfg in $(generic_defconfigs); do echo "  $${cfg}"; done
556         $(Q)echo                                  545         $(Q)echo
557         $(Q)false                                 546         $(Q)false
558                                                   547 
559 #                                                 548 #
560 # Legacy defconfig compatibility - these targe    549 # Legacy defconfig compatibility - these targets used to be real defconfigs but
561 # now that the boards have been converted to u    550 # now that the boards have been converted to use the generic kernel they are
562 # wrappers around the generic rules above.        551 # wrappers around the generic rules above.
563 #                                                 552 #
564 legacy_defconfigs               += ocelot_defc    553 legacy_defconfigs               += ocelot_defconfig
565 ocelot_defconfig-y              := 32r2el_defc    554 ocelot_defconfig-y              := 32r2el_defconfig BOARDS=ocelot
566                                                   555 
567 legacy_defconfigs               += sead3_defco    556 legacy_defconfigs               += sead3_defconfig
568 sead3_defconfig-y               := 32r2el_defc    557 sead3_defconfig-y               := 32r2el_defconfig BOARDS=sead-3
569                                                   558 
570 legacy_defconfigs               += sead3micro_    559 legacy_defconfigs               += sead3micro_defconfig
571 sead3micro_defconfig-y          := micro32r2el    560 sead3micro_defconfig-y          := micro32r2el_defconfig BOARDS=sead-3
572                                                   561 
573 legacy_defconfigs               += xilfpga_def    562 legacy_defconfigs               += xilfpga_defconfig
574 xilfpga_defconfig-y             := 32r2el_defc    563 xilfpga_defconfig-y             := 32r2el_defconfig BOARDS=xilfpga
575                                                << 
576 legacy_defconfigs               += pistachio_d << 
577 pistachio_defconfig-y           := 32r2el_defc << 
578                                                   564 
579 .PHONY: $(legacy_defconfigs)                      565 .PHONY: $(legacy_defconfigs)
580 $(legacy_defconfigs):                             566 $(legacy_defconfigs):
581         $(Q)$(MAKE) -f $(srctree)/Makefile $($    567         $(Q)$(MAKE) -f $(srctree)/Makefile $($@-y)
                                                      

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