90932b407c
Currently, glibc depends on !BR2_STATIC_LIBS in all the toolchain variants. However, for some architectures, glibc is the only supported libc. In commit3b3105328e("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 commit3b3105328eprevents 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>
96 lines
2.9 KiB
Plaintext
96 lines
2.9 KiB
Plaintext
# Config entries for internal toolchain backend
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if BR2_TOOLCHAIN_BUILDROOT
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comment "Toolchain Buildroot Options"
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config BR2_TOOLCHAIN_BUILDROOT_VENDOR
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string "custom toolchain vendor name"
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default "buildroot"
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help
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This option allows to customize the "vendor" part of the
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toolchain tuple, where the toolchain tuple has the form
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<arch>-<vendor>-<os>-<libc>. The default value, "buildroot",
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is fine for most cases, except in very specific situations
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where gcc might make different decisions based on the vendor
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part of the tuple. The value "unknown" is not allowed, as the
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cross-compiling toolchain might then be confused with the
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native toolchain when the target and host architecture are
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identical. The value can not be empty either.
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If you're not sure, just leave the default "buildroot" value.
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choice
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prompt "C library"
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default BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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default BR2_TOOLCHAIN_BUILDROOT_GLIBC if BR2_powerpc64
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config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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bool "uClibc-ng"
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depends on BR2_PACKAGE_UCLIBC_SUPPORTS
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select BR2_TOOLCHAIN_USES_UCLIBC
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help
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This option selects uClibc-ng as the C library for the
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cross-compilation toolchain.
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http://uclibc-ng.org
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config BR2_TOOLCHAIN_BUILDROOT_GLIBC
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bool "glibc"
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depends on BR2_PACKAGE_GLIBC_SUPPORTS
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select BR2_TOOLCHAIN_USES_GLIBC
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help
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This option selects glibc as the C library for the
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cross-compilation toolchain.
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http://www.gnu.org/software/libc/
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comment "glibc needs a toolchain w/ kernel headers >= 3.2"
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depends on BR2_PACKAGE_GLIBC_ARCH_SUPPORTS
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
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# glibc >= 2.26 require kernel headers >= 3.10 on powerpc64le.
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comment "glibc on powerpc64le needs a toolchain w/ headers >= 3.10"
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depends on BR2_powerpc64le
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
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# Support for MIPS NAN2008 needs headers >= 4.5
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comment "glibc on MIPS w/ NAN2008 needs a toolchain w/ headers >= 4.5"
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depends on BR2_MIPS_NAN_2008
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
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comment "glibc on RISC-V 64-bit needs a toolchain w/ headers >= 5.0"
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depends on BR2_RISCV_64
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_0
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comment "glibc on ARC needs a toolchain w/ headers >= 5.1"
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depends on BR2_arc
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depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_1
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config BR2_TOOLCHAIN_BUILDROOT_MUSL
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bool "musl"
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depends on BR2_PACKAGE_MUSL_SUPPORTS
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select BR2_TOOLCHAIN_USES_MUSL
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help
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This option selects musl as the C library for the
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cross-compilation toolchain.
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https://www.musl-libc.org/
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endchoice
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config BR2_TOOLCHAIN_BUILDROOT_LIBC
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string
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default "uclibc" if BR2_TOOLCHAIN_BUILDROOT_UCLIBC
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default "glibc" if BR2_TOOLCHAIN_BUILDROOT_GLIBC
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default "musl" if BR2_TOOLCHAIN_BUILDROOT_MUSL
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source "package/linux-headers/Config.in.host"
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source "package/linux-headers/Config.in"
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source "package/musl/Config.in"
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source "package/uclibc/Config.in"
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source "package/glibc/Config.in"
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source "package/binutils/Config.in.host"
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source "package/gcc/Config.in.host"
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endif
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