package/gcc/Config.in.host

   1 comment "GCC Options"
   2
   3 config BR2_GCC_NEEDS_MPC
   4         bool
   5
   6 config BR2_GCC_SUPPORTS_GRAPHITE
   7         bool
   8
   9 choice
  10         prompt "GCC compiler Version"
  11         default BR2_GCC_VERSION_4_8_ARC if BR2_arc
  12         default BR2_GCC_VERSION_4_9_X
  13         help
  14           Select the version of gcc you wish to use.
  15
  16         config BR2_GCC_VERSION_4_7_X
  17                 bool "gcc 4.7.x"
  18                 depends on BR2_DEPRECATED_SINCE_2016_05
  19                 # Broken or unsupported architectures
  20                 depends on !BR2_microblaze && !BR2_aarch64 && !BR2_arc \
  21                         && !BR2_powerpc64le && !BR2_nios2 && !BR2_bfin
  22                 # Broken or unsupported ARM cores
  23                 depends on !BR2_cortex_a12 && !BR2_pj4 && !BR2_cortex_a17
  24                 # Broken or unsupported PPC cores
  25                 depends on !BR2_powerpc_e5500 && !BR2_powerpc_e6500 && \
  26                         !BR2_powerpc_power8
  27                 # SPARC -mcpu=leon3 appeared in gcc 4.8.x
  28                 depends on !BR2_sparc_leon3
  29                 # Broken or unsupported x86 cores
  30                 depends on !BR2_x86_jaguar && !BR2_x86_steamroller
  31                 # Unsupported for MIPS R6
  32                 depends on !BR2_mips_32r6 && !BR2_mips_64r6
  33                 select BR2_GCC_NEEDS_MPC
  34                 select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
  35
  36         config BR2_GCC_VERSION_4_8_X
  37                 bool "gcc 4.8.x"
  38                 # Broken or unsupported architectures
  39                 depends on !BR2_microblaze && !BR2_arc \
  40                         && !BR2_powerpc64le && !BR2_nios2 && !BR2_bfin
  41                 # Broken or unsupported ARM cores
  42                 depends on !BR2_cortex_a12 && !BR2_cortex_a17
  43                 # Broken or unsupported PPC cores
  44                 depends on !BR2_powerpc_power8
  45                 # gcc-4.8.x + binutils-2.25 is broken for MIPS
  46                 depends on !((BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el) && BR2_BINUTILS_VERSION_2_25_X)
  47                 # Unsupported for MIPS R6
  48                 depends on !BR2_mips_32r6 && !BR2_mips_64r6
  49                 select BR2_GCC_NEEDS_MPC
  50                 select BR2_GCC_SUPPORTS_GRAPHITE
  51                 select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
  52
  53         config BR2_GCC_VERSION_4_8_ARC
  54                 bool "gcc 4.8-arc"
  55                 # Only supported architecture
  56                 depends on BR2_arc
  57                 select BR2_GCC_NEEDS_MPC
  58                 select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
  59
  60
  61         config BR2_GCC_VERSION_4_9_X
  62                 bool "gcc 4.9.x"
  63                 # Broken or unsupported architectures
  64                 depends on !BR2_arc && !BR2_bfin
  65                 # Broken or unsupported ARM cores
  66                 depends on !BR2_cortex_a17
  67                 # Unsupported for MIPS R6
  68                 depends on !BR2_mips_32r6 && !BR2_mips_64r6
  69                 # PR60102 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60102
  70                 select BR2_GCC_NEEDS_MPC
  71                 select BR2_GCC_SUPPORTS_GRAPHITE
  72                 select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
  73
  74         config BR2_GCC_VERSION_5_X
  75                 bool "gcc 5.x"
  76                 # Broken or unsupported architectures
  77                 depends on !BR2_arc && !BR2_bfin
  78                 select BR2_GCC_NEEDS_MPC
  79                 select BR2_GCC_SUPPORTS_GRAPHITE
  80                 select BR2_TOOLCHAIN_GCC_AT_LEAST_5
  81
  82         config BR2_GCC_VERSION_6_X
  83                 bool "gcc 6.x"
  84                 # Broken or unsupported architectures
  85                 depends on !BR2_arc
  86                 select BR2_GCC_NEEDS_MPC
  87                 select BR2_GCC_SUPPORTS_GRAPHITE
  88                 select BR2_TOOLCHAIN_GCC_AT_LEAST_6
  89
  90 endchoice
  91
  92 # Indicates if GCC for architecture supports --with-{arch,cpu,..}  to
  93 # set default CFLAGS, otherwise values will be used by toolchain
  94 # wrapper.
  95 config BR2_GCC_ARCH_HAS_CONFIGURABLE_DEFAULTS
  96         bool
  97         default y if !BR2_bfin
  98
  99 config BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE
 100         bool
 101         default y
 102
 103 config BR2_GCC_VERSION
 104         string
 105         default "4.7.4"     if BR2_GCC_VERSION_4_7_X
 106         default "4.8.5"     if BR2_GCC_VERSION_4_8_X
 107         default "4.9.3"     if BR2_GCC_VERSION_4_9_X
 108         default "5.4.0"     if BR2_GCC_VERSION_5_X
 109         default "6.1.0" if BR2_GCC_VERSION_6_X
 110         default "arc-2016.09-eng006" if BR2_GCC_VERSION_4_8_ARC
 111
 112 config BR2_EXTRA_GCC_CONFIG_OPTIONS
 113         string "Additional gcc options"
 114         default ""
 115         help
 116           Any additional gcc configure options you may want to
 117           include. Those options are applied for all of the gcc
 118           initial, gcc intermediate and gcc final passes.
 119
 120 config BR2_TOOLCHAIN_BUILDROOT_CXX
 121         bool "Enable C++ support"
 122         select BR2_INSTALL_LIBSTDCPP
 123         help
 124           Enable this option if you want your toolchain to support the
 125           C++ language and you want C++ libraries to be installed on
 126           your target system.
 127
 128 comment "Fortran support needs a toolchain w/ wchar"
 129         depends on BR2_TOOLCHAIN_HAS_LIBQUADMATH
 130         depends on !BR2_USE_WCHAR # libquadmath
 131
 132 config BR2_TOOLCHAIN_BUILDROOT_FORTRAN
 133         bool "Enable Fortran support"
 134         # on architecture building libquadmath, wchar is required
 135         depends on !BR2_TOOLCHAIN_HAS_LIBQUADMATH || \
 136                 (BR2_TOOLCHAIN_HAS_LIBQUADMATH && BR2_USE_WCHAR)
 137         select BR2_TOOLCHAIN_HAS_FORTRAN
 138         help
 139           Enable this option if you want your toolchain to support the
 140           Fortran language and you want Fortran libraries to be
 141           installed on your target system.
 142
 143 config BR2_GCC_ENABLE_TLS
 144         bool "Enable compiler tls support" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
 145         default y
 146         depends on BR2_PTHREADS_NATIVE || BR2_TOOLCHAIN_BUILDROOT_GLIBC
 147         help
 148           Enable the compiler to generate code for accessing
 149           thread local storage variables
 150
 151 config BR2_GCC_ENABLE_LTO
 152         bool "Enable compiler link-time-optimization support"
 153         select BR2_BINUTILS_ENABLE_LTO
 154         help
 155           This option enables link-time optimization (LTO) support in
 156           gcc.
 157
 158 config BR2_GCC_ENABLE_OPENMP
 159         bool "Enable compiler OpenMP support"
 160         depends on !BR2_PTHREADS_NONE && !BR2_arc && !BR2_microblaze
 161         help
 162           Enable OpenMP support for the compiler
 163
 164 config BR2_GCC_ENABLE_LIBMUDFLAP
 165         bool "Enable libmudflap support"
 166         # There are architectures, or specific configurations for
 167         # which mudflap is not supported.
 168         depends on !BR2_ARM_INSTRUCTIONS_THUMB && !BR2_powerpc_SPE
 169         depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 170         help
 171           libmudflap is a gcc library used for the mudflap pointer
 172           debugging functionality. It is only needed if you intend to
 173           use the -fmudflap gcc flag.
 174
 175           See http://gcc.gnu.org/wiki/Mudflap_Pointer_Debugging and
 176           the help of the gcc -fmudflap option for more details.
 177
 178           If you're unsure, leave this option disabled.
 179
 180 config BR2_GCC_ENABLE_GRAPHITE
 181         bool "Enable graphite support"
 182         depends on BR2_GCC_SUPPORTS_GRAPHITE
 183         help
 184           This option enables the graphite optimizations in the
 185           compiler.