[Buildroot] [PATCH v2 1/6] toolchain: introduce a toolchain knob for NPTL
Arnout Vandecappelle
arnout at mind.be
Wed Feb 19 17:22:07 UTC 2014
On 18/02/14 22:08, Thomas Petazzoni wrote:
> As our architecture support expands to a number of architectures that
> do not implement NPTL threading, and the number of packages that
> depend on NPTL specific features, it has become necessary to be able
> to know whether the toolchain has NPTL support or not.
>
> This commit adds a new BR2_TOOLCHAIN_HAS_THREADS_NPTL hidden Config.in
> option that allows packages to know whether NPTL is available or not.
>
> This hidden option is:
>
> * Automatically enabled when glibc/eglibc or musl toolchains are
> used, either internal or external.
>
> * Automatically enabled when an internal uClibc toolchain with NPTL
> support is configured. It is left disabled otherwise for internal
> uClibc toolchains.
>
> * Configured according to a visible Config.in option for custom
> external uClibc toolchains.
>
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> ---
> package/uclibc/Config.in | 1 +
> toolchain/Config.in | 2 ++
> toolchain/helpers.mk | 1 +
> toolchain/toolchain-common.in | 3 +++
> toolchain/toolchain-external/Config.in | 11 +++++++++++
> 5 files changed, 18 insertions(+)
>
> diff --git a/package/uclibc/Config.in b/package/uclibc/Config.in
> index 860e410..2b93660 100644
> --- a/package/uclibc/Config.in
> +++ b/package/uclibc/Config.in
> @@ -124,6 +124,7 @@ choice
> config BR2_PTHREADS_NATIVE
> bool "Native POSIX Threading (NPTL)"
> select BR2_TOOLCHAIN_HAS_THREADS
> + select BR2_TOOLCHAIN_HAS_THREADS_NPTL
> depends on !BR2_arc
> depends on !BR2_avr32
> depends on !BR2_bfin
> diff --git a/toolchain/Config.in b/toolchain/Config.in
> index bbfd367..44f3ac6 100644
> --- a/toolchain/Config.in
> +++ b/toolchain/Config.in
> @@ -9,6 +9,7 @@ config BR2_TOOLCHAIN_USES_GLIBC
> select BR2_ENABLE_LOCALE
> select BR2_TOOLCHAIN_HAS_THREADS
> select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
> + select BR2_TOOLCHAIN_HAS_THREADS_NPTL
> select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
> select BR2_TOOLCHAIN_HAS_SSP
>
> @@ -23,6 +24,7 @@ config BR2_TOOLCHAIN_USES_MUSL
> select BR2_ENABLE_LOCALE
> select BR2_TOOLCHAIN_HAS_THREADS
> select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
> + select BR2_TOOLCHAIN_HAS_THREADS_NPTL
>
> choice
> prompt "Toolchain type"
> diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
> index faa9d90..892ab4b 100644
> --- a/toolchain/helpers.mk
> +++ b/toolchain/helpers.mk
> @@ -268,6 +268,7 @@ check_uclibc = \
> $(call check_uclibc_feature,__UCLIBC_HAS_WCHAR__,BR2_USE_WCHAR,$${UCLIBC_CONFIG_FILE},Wide char support) ;\
> $(call check_uclibc_feature,__UCLIBC_HAS_THREADS__,BR2_TOOLCHAIN_HAS_THREADS,$${UCLIBC_CONFIG_FILE},Thread support) ;\
> $(call check_uclibc_feature,__PTHREADS_DEBUG_SUPPORT__,BR2_TOOLCHAIN_HAS_THREADS_DEBUG,$${UCLIBC_CONFIG_FILE},Thread debugging support) ;\
> + $(call check_uclibc_feature,__UCLIBC_HAS_THREADS_NATIVE__,BR2_TOOLCHAIN_HAS_THREADS_NPTL,$${UCLIBC_CONFIG_FILE},NPTL thread support) ;\
> $(call check_uclibc_feature,__UCLIBC_HAS_SSP__,BR2_TOOLCHAIN_HAS_SSP,$${UCLIBC_CONFIG_FILE},Stack Smashing Protection support)
>
> #
> diff --git a/toolchain/toolchain-common.in b/toolchain/toolchain-common.in
> index 8435a65..c4e3890 100644
> --- a/toolchain/toolchain-common.in
> +++ b/toolchain/toolchain-common.in
> @@ -29,6 +29,9 @@ config BR2_TOOLCHAIN_HAS_THREADS
> config BR2_TOOLCHAIN_HAS_THREADS_DEBUG
> bool
>
> +config BR2_TOOLCHAIN_HAS_THREADS_NPTL
> + bool
> +
> config BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
> bool
>
> diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
> index f02f89b..c87f195 100644
> --- a/toolchain/toolchain-external/Config.in
> +++ b/toolchain/toolchain-external/Config.in
> @@ -1006,6 +1006,17 @@ config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG
> debugging support. If you don't know, leave the default
> value, Buildroot will tell you if it's correct or not.
>
> +config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL
> + bool "Toolchain has NPTL threads support?"
> + depends on BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
Small nit: it would be nicer to factor this with the _THREADS_DEBUG
option in a single if-clause.
Regards,
Arnout
> + select BR2_TOOLCHAIN_HAS_THREADS_NPTL
> + default y
> + help
> + Select this option if your external toolchain uses the NPTL
> + (Native Posix Thread Library) implementation of Posix
> + threads. If you don't know, leave the default value,
> + Buildroot will tell you if it's correct or not.
> +
> config BR2_TOOLCHAIN_EXTERNAL_HAS_SSP
> bool "Toolchain has SSP support?"
> select BR2_TOOLCHAIN_HAS_SSP
>
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286500
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
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