kumquat-buildroot/toolchain/toolchain-external/toolchain-external-arm-arm/Config.in
Arnout Vandecappelle (Essensium/Mind) 90932b407c toolchain: invert glibc <-> !static dependency
Currently, glibc depends on !BR2_STATIC_LIBS in all the toolchain
variants.

However, for some architectures, glibc is the only supported libc. In
commit 3b3105328e ("Config.in: only
allow BR2_STATIC_LIBS on supported libc/arch"), we implemented a fix
to avoid configurations were BR2_STATIC_LIBS=y with an architecture
already supported by glibc, because these configurations are
impossible. This commit 3b3105328e
prevents from selecting BR2_STATIC_LIBS=y when the C library used for
the internal toolchain backend is glibc.

However, it introduces a discrepency between how this topic is handled
for internal and external toolchains:

 - For internal toolchains, we prevent BR2_STATIC_LIBS=y if glibc is
   chosen.

 - For external toolchains, we allow BR2_STATIC_LIBS=y in all cases,
   and it's each glibc toolchain that has !BR2_STATIC_LIBS

This commit addresses this discrepency by preventing BR2_STATIC_LIBS=y
if glibc is chosen in all cases.

Thanks to this, we can remove the !BR2_STATIC_LIBS dependency on both
the glibc package, and all glibc external toolchains.

Fixes: https://bugs.busybox.net/show_bug.cgi?id=14256

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: update to master, fix the gen-bootlin-toolchains script, add
a comment in the static/shared choice to indicate that static is
supported only with uclibc or musl]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2022-07-27 11:11:19 +02:00

30 lines
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comment "Arm toolchains available for Cortex-A with NEON + EABIhf"
depends on BR2_arm
depends on !BR2_ARM_CPU_ARMV7A || !BR2_ARM_EABIHF || !BR2_ARM_CPU_HAS_NEON
config BR2_TOOLCHAIN_EXTERNAL_ARM_ARM
bool "Arm ARM 2021.07"
depends on BR2_arm
depends on BR2_ARM_CPU_ARMV7A || BR2_ARM_CPU_ARMV8A
depends on BR2_ARM_CPU_HAS_NEON
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "aarch64"
depends on BR2_ARM_EABIHF
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_SSP
select BR2_INSTALL_LIBSTDCPP
select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_20
select BR2_TOOLCHAIN_GCC_AT_LEAST_10
select BR2_TOOLCHAIN_HAS_FORTRAN
select BR2_TOOLCHAIN_HAS_OPENMP
help
Arm toolchain for the ARM architecture. It uses GCC 10.3,
GDB 10.2, glibc 2.33, Binutils 2.36.1. It generates code
that runs on all Cortex-A profile devices. The code
generated uses the hard floating point calling convention,
and uses the NEON FPU instructions.
This is the same toolchain that was previously distributed by
Linaro.
https://developer.arm.com/open-source/gnu-toolchain