kumquat-buildroot/toolchain/toolchain-buildroot/Config.in
Thomas Petazzoni bfcddf0570 package/gcc/gcc-final: add a target variant in charge of target installation
This commit adds a target package "gcc-final", which is a target
package responsible for installing the gcc runtime libraries to
STAGING_DIR and TARGET_DIR. This task was so far done by the host
gcc-final package.

The motivation for splitting it up into a target package is to be able
to properly handle the licensing situation of GCC, where the host part
of GCC (the compiler itself) is under GPLv3, but the runtime libraries
on the target are under GPLv3-with-exception. So far, we were not
handling at all the license of gcc.

So what this commit does is:

 * Add a gcc-final target package, which is depended on by the
   toolchain-buildroot package, and which depends on
   host-gcc-final.

 * Moves to gcc-final the logic for installing target/staging
   libraries

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Romain Naour <romain.naour@smile.fr>
2023-09-30 14:49:51 +02:00

116 lines
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# Config entries for internal toolchain backend
if BR2_TOOLCHAIN_BUILDROOT
comment "Toolchain Buildroot Options"
config BR2_TOOLCHAIN_BUILDROOT_VENDOR
string "custom toolchain vendor name"
default "buildroot"
help
This option allows to customize the "vendor" part of the
toolchain tuple, where the toolchain tuple has the form
<arch>-<vendor>-<os>-<libc>. The default value, "buildroot",
is fine for most cases, except in very specific situations
where gcc might make different decisions based on the vendor
part of the tuple. The value "unknown" is not allowed, as the
cross-compiling toolchain might then be confused with the
native toolchain when the target and host architecture are
identical. The value can not be empty either.
If you're not sure, just leave the default "buildroot" value.
choice
prompt "C library"
default BR2_TOOLCHAIN_BUILDROOT_GLIBC
config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
bool "uClibc-ng"
depends on BR2_PACKAGE_UCLIBC_SUPPORTS
select BR2_TOOLCHAIN_USES_UCLIBC
help
This option selects uClibc-ng as the C library for the
cross-compilation toolchain.
http://uclibc-ng.org
config BR2_TOOLCHAIN_BUILDROOT_GLIBC
bool "glibc"
depends on BR2_PACKAGE_GLIBC_SUPPORTS
select BR2_TOOLCHAIN_USES_GLIBC
help
This option selects glibc as the C library for the
cross-compilation toolchain.
http://www.gnu.org/software/libc/
comment "glibc needs a toolchain w/ kernel headers >= 3.2"
depends on BR2_PACKAGE_GLIBC_ARCH_SUPPORTS
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
# glibc >= 2.26 require kernel headers >= 3.10 on powerpc64le.
comment "glibc on powerpc64le needs a toolchain w/ headers >= 3.10"
depends on BR2_powerpc64le
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
# Support for MIPS NAN2008 needs headers >= 4.5
comment "glibc on MIPS w/ NAN2008 needs a toolchain w/ headers >= 4.5"
depends on BR2_MIPS_NAN_2008
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
comment "glibc on RISC-V 64-bit needs a toolchain w/ headers >= 5.0"
depends on BR2_RISCV_64
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0
comment "glibc on RISC-V 32-bit needs a toolchain w/ headers >= 5.4"
depends on BR2_RISCV_32
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_4
comment "glibc on ARC needs a toolchain w/ headers >= 5.1"
depends on BR2_arc
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_1
comment "glibc on or1k needs a toolchain w/ headers >= 5.4"
depends on BR2_or1k
depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_4
config BR2_TOOLCHAIN_BUILDROOT_MUSL
bool "musl"
depends on BR2_PACKAGE_MUSL_SUPPORTS
select BR2_TOOLCHAIN_USES_MUSL
help
This option selects musl as the C library for the
cross-compilation toolchain.
https://www.musl-libc.org/
config BR2_TOOLCHAIN_BUILDROOT_NONE
bool "none"
depends on !BR2_PACKAGE_UCLIBC_SUPPORTS && \
!BR2_PACKAGE_GLIBC_SUPPORTS && \
!BR2_PACKAGE_MUSL_SUPPORTS
help
This option is visible if no C library is available for the
currently selected configuration. If you select this option,
the build will refuse to start as Buildroot needs a C
library to build a toolchain. Change your configuration
settings to make sure one of the C libraries is selected.
endchoice
config BR2_TOOLCHAIN_BUILDROOT_LIBC
string
default "uclibc" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
default "glibc" if BR2_TOOLCHAIN_BUILDROOT_GLIBC
default "musl" if BR2_TOOLCHAIN_BUILDROOT_MUSL
source "package/linux-headers/Config.in.host"
source "package/linux-headers/Config.in"
source "package/musl/Config.in"
source "package/uclibc/Config.in"
source "package/glibc/Config.in"
source "package/binutils/Config.in.host"
source "package/gcc/Config.in.host"
source "package/gcc/Config.in"
endif