openwrt/toolchain/gcc/Config.in
Julien Dusser 241e6dd3e9 build: cleanup SSP_SUPPORT configure option
Configure variable SSP_SUPPORT is ambiguous for packages (tor, openssh,
avahi, freeswitch). It means 'toolchain supporting SSP', but for toolchain
and depends it means 'build gcc with libssp'.

Musl no longer uses libssp (1877bc9d8f), it has internal support, so
SSP_SUPPORT was disabled leading some package to not use SSP.

No information why Glibc and uClibc use libssp, but they may also provide
their own SSP support. uClibc used it own with commit 933b588e25 but it was
reverted in f3cacb9e84 without details.

Create an new configure GCC_LIBSSP and automatically enable SSP_SUPPORT
if either USE_MUSL or GCC_LIBSSP.

Signed-off-by: Julien Dusser <julien.dusser@free.fr>
2018-01-27 19:02:48 +01:00

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# Choose gcc version.
choice
prompt "GCC compiler Version" if TOOLCHAINOPTS
default GCC_USE_VERSION_7_1_ARC if arc
default GCC_USE_VERSION_5
help
Select the version of gcc you wish to use.
config GCC_USE_VERSION_7_1_ARC
select GCC_VERSION_7_1_ARC
bool "gcc 7.1.x with support of ARC cores"
depends on arc
config GCC_USE_VERSION_5
bool "gcc 5.x"
depends on !arc
config GCC_USE_VERSION_6
bool "gcc 6.x"
depends on !arc
config GCC_USE_VERSION_7
bool "gcc 7.x"
depends on !arc
endchoice
config GCC_USE_GRAPHITE
bool
prompt "Compile in support for the new Graphite framework in GCC 4.4+" if TOOLCHAINOPTS
config EXTRA_GCC_CONFIG_OPTIONS
string
prompt "Additional gcc configure options" if TOOLCHAINOPTS
default ""
help
Any additional gcc options you may want to include....
config GCC_DEFAULT_PIE
bool
prompt "Build executable with PIE enabled by default" if TOOLCHAINOPTS
depends on !GCC_USE_VERSION_5
default n
help
Use gcc configure option --enable-default-pie to turn on -fPIE and -pie by default.
config GCC_DEFAULT_SSP
bool
prompt "Build executable with Stack-Smashing Protection enabled by default" if TOOLCHAINOPTS
default n
help
Use gcc configure option --enable-default-ssp to turn on -fstack-protector-strong by default.
config GCC_LIBSSP
bool
prompt "Build gcc libssp" if TOOLCHAINOPTS
depends on !USE_MUSL
default y if !USE_MUSL
help
Enable Stack-Smashing Protection support
config SJLJ_EXCEPTIONS
bool
prompt "Use setjump()/longjump() exceptions" if TOOLCHAINOPTS
default n
help
Use old setjump()/longjump() exceptions instead of the newer
frame unwinding exceptions handling routines. Warning: increases
code size and runtime memory usage.
config INSTALL_GFORTRAN
bool
prompt "Build/install fortran compiler?" if TOOLCHAINOPTS
default n
help
Build/install GNU fortran compiler ?
config INSTALL_GCCGO
bool
prompt "Build/install Go compiler?" if TOOLCHAINOPTS
depends on USE_GLIBC || BROKEN
default n
help
Build/install GNU gccgo compiler ?