toolchain/toolchain-external: add BR2_ARCH_NEEDS_GCC_AT_LEAST_X guards

Previously, it was possible to select an external toolchain that did not
support the GCC arch tuning the user had selected. This is problematic
because it can lead to confusing error messages during builds [0].

Now, external toolchain selections will be filtered to only those that
support the required GCC version specified by the target arch tuning.

Note: this patch does not touch the Bootlin toolchain config file as it
is generated by a script.

Additional note: there is "soft" support for toolchains prior to GCC 4.8
but there are no accompanying BR2_ARCH_NEEDS_GCC_AT_LEAST_X symbols.
Instead of adding those, just use BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8 which
is the minimum GCC version with claimed support [1].

[0]: https://lists.buildroot.org/pipermail/buildroot/2023-August/671877.html
[1]: https://buildroot.org/downloads/manual/manual.html#requirement-mandatory

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Vincent Fazio 2023-08-12 23:47:50 -05:00 committed by Yann E. MORIN
parent f3fab0defe
commit eed1670d8a
9 changed files with 24 additions and 0 deletions

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@ -2,6 +2,7 @@ config BR2_TOOLCHAIN_EXTERNAL_ARM_AARCH64_BE
bool "Arm AArch64 BE 12.2.rel1"
depends on BR2_aarch64_be
depends on BR2_HOSTARCH = "x86_64"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_13
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_INSTALL_LIBSTDCPP

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@ -2,6 +2,7 @@ config BR2_TOOLCHAIN_EXTERNAL_ARM_AARCH64
bool "Arm AArch64 12.2.rel1"
depends on BR2_aarch64
depends on BR2_HOSTARCH = "x86_64"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_13
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_INSTALL_LIBSTDCPP

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@ -9,6 +9,7 @@ config BR2_TOOLCHAIN_EXTERNAL_ARM_ARM
depends on BR2_ARM_CPU_HAS_NEON
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "aarch64"
depends on BR2_ARM_EABIHF
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_13
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_INSTALL_LIBSTDCPP

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@ -52,66 +52,82 @@ config BR2_TOOLCHAIN_EXTERNAL_GCC_13
config BR2_TOOLCHAIN_EXTERNAL_GCC_12
bool "12.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_13
select BR2_TOOLCHAIN_GCC_AT_LEAST_12
config BR2_TOOLCHAIN_EXTERNAL_GCC_11
bool "11.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_12
select BR2_TOOLCHAIN_GCC_AT_LEAST_11
config BR2_TOOLCHAIN_EXTERNAL_GCC_10
bool "10.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_11
select BR2_TOOLCHAIN_GCC_AT_LEAST_10
config BR2_TOOLCHAIN_EXTERNAL_GCC_9
bool "9.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_10
select BR2_TOOLCHAIN_GCC_AT_LEAST_9
config BR2_TOOLCHAIN_EXTERNAL_GCC_8
bool "8.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_9
select BR2_TOOLCHAIN_GCC_AT_LEAST_8
config BR2_TOOLCHAIN_EXTERNAL_GCC_7
bool "7.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
select BR2_TOOLCHAIN_GCC_AT_LEAST_7
config BR2_TOOLCHAIN_EXTERNAL_GCC_6
bool "6.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_7
select BR2_TOOLCHAIN_GCC_AT_LEAST_6
config BR2_TOOLCHAIN_EXTERNAL_GCC_5
bool "5.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_6
select BR2_TOOLCHAIN_GCC_AT_LEAST_5
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_9
bool "4.9.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_5
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_8
bool "4.8.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_7
bool "4.7.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_6
bool "4.6.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_5
bool "4.5.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_4
bool "4.4.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
config BR2_TOOLCHAIN_EXTERNAL_GCC_4_3
bool "4.3.x"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
config BR2_TOOLCHAIN_EXTERNAL_GCC_OLD
bool "older"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8
help
Use this option if your GCC version is older than any of the
above.

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@ -2,6 +2,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64_BE
bool "Linaro AArch64 BE 2018.05"
depends on BR2_aarch64_be
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_INSTALL_LIBSTDCPP

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@ -2,6 +2,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
bool "Linaro AArch64 2018.05"
depends on BR2_aarch64
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_INSTALL_LIBSTDCPP

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@ -8,6 +8,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
depends on BR2_ARM_CPU_ARMV7A || BR2_ARM_CPU_ARMV8A
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on BR2_ARM_EABIHF
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_TOOLCHAIN_HAS_NATIVE_RPC

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@ -8,6 +8,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
depends on BR2_ARM_CPU_ARMV7A || BR2_ARM_CPU_ARMV8A
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on BR2_ARM_EABIHF
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_8
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_TOOLCHAIN_HAS_NATIVE_RPC

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@ -2,6 +2,7 @@ config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
bool "Synopsys ARC 2019.09 toolchain"
depends on BR2_arc
depends on BR2_HOSTARCH = "x86_64"
depends on !BR2_ARCH_NEEDS_GCC_AT_LEAST_10
select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
select BR2_INSTALL_LIBSTDCPP
select BR2_ENABLE_LOCALE