crosstool-ng/config/cc/gcc.in
Alexey Neyman 874f4bd668 Disallow c++ for baremetal.
libstdc++ configure fails to find <stdio.h>.

Signed-off-by: Alexey Neyman <stilor@att.net>
2017-01-10 10:38:08 -08:00

310 lines
7.3 KiB
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# Compiler options
#
## default y
## select CC_SUPPORT_CXX if !LIBC_none
## select CC_SUPPORT_FORTRAN
## select CC_SUPPORT_JAVA
## select CC_SUPPORT_ADA
## select CC_SUPPORT_OBJC
## select CC_SUPPORT_OBJCXX
##
## help gcc is the full-blown GNU compiler. This is what most people will choose.
## help
## help gcc supports many languages, a powerful code parser, optimised binary
## help output, and lots of other features.
config CC_GCC_CUSTOM
bool
prompt "Custom gcc"
depends on EXPERIMENTAL
select CC_GCC_latest
help
The choosen gcc version shall be not downloaded. Instead use
a custom location to get the source.
if CC_GCC_CUSTOM
config CC_GCC_CUSTOM_LOCATION
string
prompt "Full path to custom gcc source"
help
Enter the path to the directory or tarball of your source for gcc.
If the path is a tarball, it should extract to: <name>-<version>/
where the name is this component, gcc, and the version is set
below in the custom version string.
config CC_GCC_CUSTOM_VERSION
string
prompt "Custom GCC Version"
help
Enter the version number for your custom gcc.
config CC_GCC_VERSION
string
default CC_GCC_CUSTOM_VERSION
endif #CC_GCC_CUSTOM
if ! CC_GCC_CUSTOM
config CC_GCC_SHOW_LINARO
bool
prompt "Show Linaro versions"
help
Linaro is maintaining some advanced/more stable/experimental versions
of gcc, especially for the ARM architecture.
Those versions have not been blessed by the gcc comunity (nor have they
been cursed either!), but they look to be pretty much stable, and even
more stable than the upstream versions. YMMV...
If you do not know what this Linaro stuff is, then simply say 'n' here,
and rest in peace. OTOH, if you know what you are doing, you will be
able to use and enjoy :-) the Linaro versions by saying 'y' here.
Linaro: http://www.linaro.org/
choice
bool
prompt "gcc version"
# Don't remove next line
# CT_INSERT_VERSION_BELOW
config CC_GCC_V_6_3_0
bool
prompt "6.3.0"
select CC_GCC_6
config CC_GCC_V_5_4_0
bool
prompt "5.4.0"
select CC_GCC_5
config CC_GCC_V_linaro_5_2
bool
prompt "linaro-5.2-2015.11-2"
depends on CC_GCC_SHOW_LINARO
select CC_GCC_5
config CC_GCC_V_linaro_4_9
bool
prompt "linaro-4.9-2015.06"
depends on CC_GCC_SHOW_LINARO
select CC_GCC_4_9
config CC_GCC_V_4_9_4
bool
prompt "4.9.4"
select CC_GCC_4_9
config CC_GCC_V_linaro_4_8
bool
prompt "linaro-4.8-2015.06"
depends on CC_GCC_SHOW_LINARO
select CC_GCC_4_8
config CC_GCC_V_4_8_5
bool
prompt "4.8.5"
select CC_GCC_4_8
endchoice
endif # ! CC_GCC_CUSTOM
config CC_GCC_4_8
bool
select CC_GCC_4_8_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
select CC_GCC_HAS_LTO
select CC_GCC_HAS_PKGVERSION_BUGURL
select CC_GCC_HAS_BUILD_ID
select CC_GCC_HAS_LNK_HASH_STYLE
select CC_GCC_HAS_LIBQUADMATH
select CC_GCC_HAS_LIBSANITIZER
select CC_SUPPORT_GOLANG
config CC_GCC_4_8_or_later
bool
config CC_GCC_4_9
bool
select CC_GCC_4_9_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
select CC_GCC_HAS_LTO
select CC_GCC_HAS_PKGVERSION_BUGURL
select CC_GCC_HAS_BUILD_ID
select CC_GCC_HAS_LNK_HASH_STYLE
select CC_GCC_HAS_LIBQUADMATH
select CC_GCC_HAS_LIBSANITIZER
select CC_SUPPORT_GOLANG
config CC_GCC_4_9_or_later
bool
select CC_GCC_4_8_or_later
config CC_GCC_5
bool
select CC_GCC_5_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
select CC_GCC_HAS_LTO
select CC_GCC_HAS_PKGVERSION_BUGURL
select CC_GCC_HAS_BUILD_ID
select CC_GCC_HAS_LNK_HASH_STYLE
select CC_GCC_HAS_LIBQUADMATH
select CC_GCC_HAS_LIBSANITIZER
select CC_GCC_HAS_LIBMPX
select CC_SUPPORT_GOLANG
config CC_GCC_5_or_later
bool
select CC_GCC_4_9_or_later
config CC_GCC_6
bool
select CC_GCC_6_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
select CC_GCC_HAS_LTO
select CC_GCC_HAS_PKGVERSION_BUGURL
select CC_GCC_HAS_BUILD_ID
select CC_GCC_HAS_LNK_HASH_STYLE
select CC_GCC_HAS_LIBQUADMATH
select CC_GCC_HAS_LIBSANITIZER
select CC_GCC_HAS_LIBMPX
select CC_SUPPORT_GOLANG
config CC_GCC_6_or_later
bool
select CC_GCC_5_or_later
config CC_GCC_latest
bool
select CC_GCC_6_or_later
select CC_GCC_USE_GMP_MPFR
select CC_GCC_USE_MPC
select CC_GCC_HAS_GRAPHITE
select CC_GCC_HAS_LTO
select CC_GCC_HAS_PKGVERSION_BUGURL
select CC_GCC_HAS_BUILD_ID
select CC_GCC_HAS_LNK_HASH_STYLE
select CC_GCC_HAS_LIBQUADMATH
select CC_GCC_HAS_LIBSANITIZER
config CC_GCC_HAS_GRAPHITE
bool
# For graphite: gcc needs cloog and isl
# In >= gcc-5.x, cloog is no longer needed, but isl is.
# Prompt in config/cc/gcc.in.2
config CC_GCC_USE_GRAPHITE
bool
default y
depends on CC_GCC_HAS_GRAPHITE
select CLOOG_NEEDED if !CC_GCC_5_or_later
select ISL_NEEDED
help
Enable the GRAPHITE loop optimsations.
On some systems (eg. Cygwin), CLooG and ISL (required to enable
GRAPHITE) may not build properly (yet), so you'll have to say 'N'
here (or help debug the issues)
TODO: Is this still true on Cygwin?
# The way LTO works is a bit twisted.
# See: http://gcc.gnu.org/wiki/LinkTimeOptimization#Requirements
# Basically:
# - if binutils has plugins: LTO is handled by ld/gold by loading
# the plugin when linking
# - if binutils does not have plugins: LTO is handled by collect2
# In any case, LTO support does not depend on plugins, but takes
# advantage of it
config CC_GCC_HAS_LTO
bool
# Prompt in config/cc/gcc.in.2
config CC_GCC_USE_LTO
bool
default y
depends on CC_GCC_HAS_LTO
help
Enable the Link Time Optimisations.
config CC_GCC_HAS_PKGVERSION_BUGURL
bool
config CC_GCC_HAS_BUILD_ID
bool
config CC_GCC_HAS_LNK_HASH_STYLE
bool
# Only enable gcc's support for plugins if binutils has it as well
# They are useful only when doing LTO, but it does no harm enabling
# them even without LTO.
config CC_GCC_ENABLE_PLUGINS
bool
depends on BINUTILS_PLUGINS
depends on ! STATIC_TOOLCHAIN
default y
# If binutils installs gold, enable support for gold in gcc
config CC_GCC_GOLD
bool
depends on BINUTILS_GOLD_INSTALLED
default y
config CC_GCC_USE_GMP_MPFR
bool
select GMP_NEEDED
select MPFR_NEEDED
config CC_GCC_USE_MPC
bool
select MPC_NEEDED
config CC_GCC_HAS_LIBQUADMATH
bool
config CC_GCC_HAS_LIBSANITIZER
bool
config CC_GCC_HAS_LIBMPX
bool
if ! CC_GCC_CUSTOM
config CC_GCC_VERSION
string
# Don't remove next line
# CT_INSERT_VERSION_STRING_BELOW
default "6.3.0" if CC_GCC_V_6_3_0
default "5.4.0" if CC_GCC_V_5_4_0
default "linaro-5.2-2015.11-2" if CC_GCC_V_linaro_5_2
default "linaro-4.9-2015.06" if CC_GCC_V_linaro_4_9
default "4.9.4" if CC_GCC_V_4_9_4
default "linaro-4.8-2015.06" if CC_GCC_V_linaro_4_8
default "4.8.5" if CC_GCC_V_4_8_5
endif # ! CC_GCC_CUSTOM
config CC_LANG_JAVA_USE_ECJ
bool
default y
depends on CC_LANG_JAVA
# Fortran always requires GMP+MPFR, whatever the gcc version
config CC_LANG_FORTRAN
select CC_GCC_USE_GMP_MPFR
source "config/cc/gcc.in.2"