[Buildroot] [PATCH 1/1] package/boost: atomics needs always lockfree atomic bytes

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* [Buildroot] [PATCH 1/1] package/boost: atomics needs always lockfree atomic bytes
@ 2020-11-27 17:48 Fabrice Fontaine
  2020-12-05 21:00 ` Thomas Petazzoni
  0 siblings, 1 reply; 2+ messages in thread
From: Fabrice Fontaine @ 2020-11-27 17:48 UTC (permalink / raw)
  To: buildroot

Since version 1.74.0, boost atomics needs a toolchain that always
supports lockfree atomic bytes so add dependendy on
BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS:
https://github.com/boostorg/atomic/issues/42

Fixes:
 - http://autobuild.buildroot.org/results/c03a786791e3aa7801cf1bff9934c4a105f54ce1

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 package/azmq/Config.in          | 2 ++
 package/bitcoin/Config.in       | 4 +++-
 package/boost/Config.in         | 6 +++++-
 package/domoticz/Config.in      | 2 ++
 package/gnuradio/Config.in      | 2 ++
 package/gqrx/Config.in          | 4 +++-
 package/libcpprestsdk/Config.in | 2 ++
 package/uhd/Config.in           | 2 ++
 8 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/package/azmq/Config.in b/package/azmq/Config.in
index 2904890d5f..37131a260a 100644
--- a/package/azmq/Config.in
+++ b/package/azmq/Config.in
@@ -5,6 +5,7 @@ config BR2_PACKAGE_AZMQ
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # boost-log
 	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # C++11
 	depends on BR2_USE_WCHAR # boost
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-thread
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # exception_ptr
 	select BR2_PACKAGE_ZEROMQ
 	select BR2_PACKAGE_BOOST
@@ -21,6 +22,7 @@ config BR2_PACKAGE_AZMQ
 	  https://github.com/zeromq/azmq
 
 comment "azmq needs a toolchain w/ C++11, wchar and NPTL"
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !(BR2_INSTALL_LIBSTDCPP && BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 \
 		&& BR2_USE_WCHAR && BR2_TOOLCHAIN_HAS_THREADS_NPTL)
 
diff --git a/package/bitcoin/Config.in b/package/bitcoin/Config.in
index 65af15293d..8c5d9fb8fa 100644
--- a/package/bitcoin/Config.in
+++ b/package/bitcoin/Config.in
@@ -10,6 +10,7 @@ config BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS
 config BR2_PACKAGE_BITCOIN
 	bool "bitcoin"
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-thread
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::future
 	depends on BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_HAS_THREADS # boost
@@ -36,7 +37,8 @@ config BR2_PACKAGE_BITCOIN
 	  https://bitcoincore.org
 
 comment "bitcoin needs a toolchain w/ C++, threads, wchar"
-	depends on BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS
+	depends on BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS || \
+		BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_INSTALL_LIBSTDCPP || \
 		!BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR
 
diff --git a/package/boost/Config.in b/package/boost/Config.in
index 121650b8bc..03c3df7818 100644
--- a/package/boost/Config.in
+++ b/package/boost/Config.in
@@ -52,6 +52,7 @@ config BR2_PACKAGE_BOOST_LAYOUT
 
 config BR2_PACKAGE_BOOST_ATOMIC
 	bool "boost-atomic"
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	help
 	  C++11-style atomic<>.
 
@@ -207,6 +208,7 @@ comment "boost-locale needs a toolchain not affected by GCC bug 64735"
 config BR2_PACKAGE_BOOST_LOG
 	bool "boost-log"
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # boost-thread
 	select BR2_PACKAGE_BOOST_ATOMIC
 	select BR2_PACKAGE_BOOST_DATE_TIME
@@ -218,6 +220,7 @@ config BR2_PACKAGE_BOOST_LOG
 	  Logging library.
 
 comment "boost-log needs a toolchain w/ NPTL"
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL
 
 comment "boost-log needs a toolchain not affected by GCC bug 64735"
@@ -313,8 +316,9 @@ config BR2_PACKAGE_BOOST_TEST
 
 config BR2_PACKAGE_BOOST_THREAD
 	bool "boost-thread"
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::current_exception
-	select BR2_PACKAGE_BOOST_ATOMIC if !BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
+	select BR2_PACKAGE_BOOST_ATOMIC
 	select BR2_PACKAGE_BOOST_CHRONO
 	select BR2_PACKAGE_BOOST_SYSTEM
 	help
diff --git a/package/domoticz/Config.in b/package/domoticz/Config.in
index ea7614ed51..3771e8c9eb 100644
--- a/package/domoticz/Config.in
+++ b/package/domoticz/Config.in
@@ -8,6 +8,7 @@ config BR2_PACKAGE_DOMOTICZ
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_WCHAR
 	depends on BR2_PACKAGE_LUA_5_3
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-thread
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # exception_ptr
 	select BR2_PACKAGE_BOOST
 	select BR2_PACKAGE_BOOST_DATE_TIME
@@ -32,6 +33,7 @@ config BR2_PACKAGE_DOMOTICZ
 
 comment "domoticz needs lua 5.3 and a toolchain w/ C++, gcc >= 4.8, NPTL, wchar, dynamic library"
 	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_INSTALL_LIBSTDCPP || \
 		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 || \
 		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || \
diff --git a/package/gnuradio/Config.in b/package/gnuradio/Config.in
index cd31ce8864..c7b01b454b 100644
--- a/package/gnuradio/Config.in
+++ b/package/gnuradio/Config.in
@@ -1,5 +1,6 @@
 comment "gnuradio needs a toolchain w/ C++, NPTL, wchar, dynamic library"
 	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR || \
 		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
 
@@ -13,6 +14,7 @@ config BR2_PACKAGE_GNURADIO
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	depends on BR2_USE_MMU # use fork()
 	depends on BR2_USE_WCHAR # boost
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # boost-thread
 	select BR2_PACKAGE_BOOST
 	select BR2_PACKAGE_BOOST_ATOMIC
diff --git a/package/gqrx/Config.in b/package/gqrx/Config.in
index d873c6a4d4..a2ac8bb4ff 100644
--- a/package/gqrx/Config.in
+++ b/package/gqrx/Config.in
@@ -1,6 +1,7 @@
 comment "gqrx needs a toolchain w/ C++, threads, wchar, dynamic library"
 	depends on BR2_USE_MMU # gnuradio
-	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC || \
+		BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
 		!BR2_USE_WCHAR || !BR2_STATIC_LIBS
 
@@ -19,6 +20,7 @@ config BR2_PACKAGE_GQRX
 	depends on BR2_USE_WCHAR # boost
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC
 	depends on BR2_PACKAGE_QT5
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # gnuradio -> boost-atomic
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # gnuradio
 	select BR2_PACKAGE_BOOST
 	select BR2_PACKAGE_BOOST_PROGRAM_OPTIONS
diff --git a/package/libcpprestsdk/Config.in b/package/libcpprestsdk/Config.in
index af97509d1b..97f00e3383 100644
--- a/package/libcpprestsdk/Config.in
+++ b/package/libcpprestsdk/Config.in
@@ -3,6 +3,7 @@ config BR2_PACKAGE_LIBCPPRESTSDK
 	depends on BR2_ENABLE_LOCALE
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_WCHAR # boost
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # exception_ptr
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	select BR2_PACKAGE_BOOST
@@ -23,6 +24,7 @@ config BR2_PACKAGE_LIBCPPRESTSDK
 	  https://github.com/Microsoft/cpprestsdk
 
 comment "libcpprestsdk needs a toolchain w/ NPTL, C++, wchar, locale"
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || \
 		!BR2_INSTALL_LIBSTDCPP || \
 		!BR2_USE_WCHAR || !BR2_ENABLE_LOCALE
diff --git a/package/uhd/Config.in b/package/uhd/Config.in
index 32cb4cf89d..b9aa665c31 100644
--- a/package/uhd/Config.in
+++ b/package/uhd/Config.in
@@ -1,5 +1,6 @@
 comment "uhd needs a toolchain w/ C++, NPTL, wchar, dynamic library"
 	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR || \
 		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
 
@@ -10,6 +11,7 @@ config BR2_PACKAGE_UHD
 	bool "uhd"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on !BR2_STATIC_LIBS
+	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # boost-thread
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	depends on BR2_USE_MMU # use fork()
-- 
2.29.2

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* [Buildroot] [PATCH 1/1] package/boost: atomics needs always lockfree atomic bytes
  2020-11-27 17:48 [Buildroot] [PATCH 1/1] package/boost: atomics needs always lockfree atomic bytes Fabrice Fontaine
@ 2020-12-05 21:00 ` Thomas Petazzoni
  0 siblings, 0 replies; 2+ messages in thread
From: Thomas Petazzoni @ 2020-12-05 21:00 UTC (permalink / raw)
  To: buildroot

Hello Fabrice,

On Fri, 27 Nov 2020 18:48:29 +0100
Fabrice Fontaine <fontaine.fabrice@gmail.com> wrote:

> Since version 1.74.0, boost atomics needs a toolchain that always
> supports lockfree atomic bytes so add dependendy on
> BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS:
> https://github.com/boostorg/atomic/issues/42
> 
> Fixes:
>  - http://autobuild.buildroot.org/results/c03a786791e3aa7801cf1bff9934c4a105f54ce1
> 
> Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>

Thanks for the research! A couple of comments/questions below.

> diff --git a/package/bitcoin/Config.in b/package/bitcoin/Config.in
> index 65af15293d..8c5d9fb8fa 100644
> --- a/package/bitcoin/Config.in
> +++ b/package/bitcoin/Config.in
> @@ -10,6 +10,7 @@ config BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS
>  config BR2_PACKAGE_BITCOIN
>  	bool "bitcoin"
>  	depends on BR2_INSTALL_LIBSTDCPP
> +	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-thread
>  	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::future
>  	depends on BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS
>  	depends on BR2_TOOLCHAIN_HAS_THREADS # boost
> @@ -36,7 +37,8 @@ config BR2_PACKAGE_BITCOIN
>  	  https://bitcoincore.org
>  
>  comment "bitcoin needs a toolchain w/ C++, threads, wchar"
> -	depends on BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS
> +	depends on BR2_PACKAGE_BITCOIN_ARCH_SUPPORTS || \

This should be a && here, as we want to see the comment only if the
arch is supported *and* lock free atomics are provided.

>  config BR2_PACKAGE_BOOST_THREAD
>  	bool "boost-thread"
> +	depends on BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS # boost-atomic
>  	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::current_exception
> -	select BR2_PACKAGE_BOOST_ATOMIC if !BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS
> +	select BR2_PACKAGE_BOOST_ATOMIC

Are you sure there ? boost-atomic was only needed by boost-thread *if*
the toolchain did not provide lock free atomic ints. But anyway, now
boost-atomic always requires lockfree atomic ints.

So are you sure boost-atomic still has to be selected here ?


>  comment "gqrx needs a toolchain w/ C++, threads, wchar, dynamic library"
>  	depends on BR2_USE_MMU # gnuradio
> -	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC

This should have been a && here.

> +	depends on BR2_TOOLCHAIN_HAS_SYNC_4 || BR2_TOOLCHAIN_HAS_ATOMIC || \
> +		BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS

And so another && it should be there.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

^ permalink raw reply	[flat|nested] 2+ messages in thread

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