Skip to content

Commit

Permalink
boost: Fix build on arches with no atomics
Browse files Browse the repository at this point in the history
1.77 is broken on architectures which dont have lockfree atomics e.g.
armv5 [1], backport relevant fixes from upstream to unbreak the build

[1] boostorg/math#673

(From OE-Core rev: aaaf763acfca236654e299d3be6a9484355e3be9)

Signed-off-by: Khem Raj <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
(cherry picked from commit 57dc797712abcf83b63694b21d2b3a3f09b1c9bc)
Signed-off-by: Anuj Mittal <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
  • Loading branch information
kraj authored and rpurdie committed Dec 13, 2021
1 parent cb8ecfa commit 6dc28db
Show file tree
Hide file tree
Showing 3 changed files with 206 additions and 0 deletions.
Original file line number Diff line number Diff line change
@@ -0,0 +1,53 @@
From 32bd6197353f6ea8e5bef01f09e25c944141acfc Mon Sep 17 00:00:00 2001
From: jzmaddock <[email protected]>
Date: Wed, 1 Sep 2021 18:54:54 +0100
Subject: [PATCH] Allow definition of BOOST_MATH_NO_ATOMIC_INT on the command
line. Allows us to test/emulate platforms with no atomic integers.

[[email protected]:
- backport from boostorg/math 32bd6197353f6ea8e5bef01f09e25c944141acfc
- alter path to match boost release
]
Signed-off-by: Michael Nosthoff <[email protected]>
---
Upstream-Status: Backport [https://github.com/boostorg/math/pull/684/commits/32bd6197353f6ea8e5bef01f09e25c944141acfc]
boost/math/tools/atomic.hpp | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/boost/math/tools/atomic.hpp b/boost/math/tools/atomic.hpp
index cc76ed269f..e3cbf5db89 100644
--- a/boost/math/tools/atomic.hpp
+++ b/boost/math/tools/atomic.hpp
@@ -16,27 +16,27 @@
namespace boost {
namespace math {
namespace detail {
-#if ATOMIC_INT_LOCK_FREE == 2
+#if (ATOMIC_INT_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
typedef std::atomic<int> atomic_counter_type;
typedef std::atomic<unsigned> atomic_unsigned_type;
typedef int atomic_integer_type;
typedef unsigned atomic_unsigned_integer_type;
-#elif ATOMIC_SHORT_LOCK_FREE == 2
+#elif (ATOMIC_SHORT_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
typedef std::atomic<short> atomic_counter_type;
typedef std::atomic<unsigned short> atomic_unsigned_type;
typedef short atomic_integer_type;
typedef unsigned short atomic_unsigned_type;
-#elif ATOMIC_LONG_LOCK_FREE == 2
+#elif (ATOMIC_LONG_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
typedef std::atomic<long> atomic_unsigned_integer_type;
typedef std::atomic<unsigned long> atomic_unsigned_type;
typedef unsigned long atomic_unsigned_type;
typedef long atomic_integer_type;
-#elif ATOMIC_LLONG_LOCK_FREE == 2
+#elif (ATOMIC_LLONG_LOCK_FREE == 2) && !defined(BOOST_MATH_NO_ATOMIC_INT)
typedef std::atomic<long long> atomic_unsigned_integer_type;
typedef std::atomic<unsigned long long> atomic_unsigned_type;
typedef long long atomic_integer_type;
typedef unsigned long long atomic_unsigned_integer_type;
-#else
+#elif !defined(BOOST_MATH_NO_ATOMIC_INT)
# define BOOST_MATH_NO_ATOMIC_INT
#endif
} // Namespace detail
Original file line number Diff line number Diff line change
@@ -0,0 +1,151 @@
From 7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b Mon Sep 17 00:00:00 2001
From: jzmaddock <[email protected]>
Date: Wed, 1 Sep 2021 20:31:53 +0100
Subject: [PATCH] Make no atomics a soft failure in bernoulli_details.hpp.
Include an "escape macro" so thread safety can be disabled if certain
bernoulli features are to be used in a no-atomics environment. Fixes
https://github.com/boostorg/math/issues/673.

[[email protected]:
- backport from boostorg/math 7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b
- alter path to match boost release
]
Signed-off-by: Michael Nosthoff <[email protected]>
---
Upstream-Status: Backport [https://github.com/boostorg/math/pull/684/commits/7d482f6ebc356e6ec455ccb5f51a23971bf6ce5b]
.../detail/bernoulli_details.hpp | 10 +++++++---
libs/math/test/Jamfile.v2 | 3 +++
test/compile_test/bernoulli_no_atomic_d.cpp | 14 ++++++++++++++
test/compile_test/bernoulli_no_atomic_fail.cpp | 15 +++++++++++++++
test/compile_test/bernoulli_no_atomic_mp.cpp | 16 ++++++++++++++++
5 files changed, 55 insertions(+), 3 deletions(-)
create mode 100644 test/compile_test/bernoulli_no_atomic_d.cpp
create mode 100644 test/compile_test/bernoulli_no_atomic_fail.cpp
create mode 100644 test/compile_test/bernoulli_no_atomic_mp.cpp

diff --git a/boost/math/special_functions/detail/bernoulli_details.hpp b/boost/math/special_functions/detail/bernoulli_details.hpp
index cf35545264..8519b7c89c 100644
--- a/boost/math/special_functions/detail/bernoulli_details.hpp
+++ b/boost/math/special_functions/detail/bernoulli_details.hpp
@@ -360,7 +360,7 @@ class bernoulli_numbers_cache
return out;
}

- #ifndef BOOST_HAS_THREADS
+ #if !defined(BOOST_HAS_THREADS) || defined(BOOST_MATH_BERNOULLI_UNTHREADED)
//
// Single threaded code, very simple:
//
@@ -382,6 +382,8 @@ class bernoulli_numbers_cache
*out = (i >= m_overflow_limit) ? policies::raise_overflow_error<T>("boost::math::bernoulli_b2n<%1%>(std::size_t)", 0, T(i), pol) : bn[i];
++out;
}
+ #elif defined(BOOST_MATH_NO_ATOMIC_INT)
+ static_assert(sizeof(T) == 1, "Unsupported configuration: your platform appears to have no atomic integers. If you are happy with thread-unsafe code, then you may define BOOST_MATH_BERNOULLI_UNTHREADED to suppress this error.");
#else
//
// Double-checked locking pattern, lets us access cached already cached values
@@ -464,7 +466,7 @@ class bernoulli_numbers_cache
return out;
}

- #ifndef BOOST_HAS_THREADS
+ #if !defined(BOOST_HAS_THREADS) || defined(BOOST_MATH_BERNOULLI_UNTHREADED)
//
// Single threaded code, very simple:
//
@@ -494,6 +496,8 @@ class bernoulli_numbers_cache
}
++out;
}
+ #elif defined(BOOST_MATH_NO_ATOMIC_INT)
+ static_assert(sizeof(T) == 1, "Unsupported configuration: your platform appears to have no atomic integers. If you are happy with thread-unsafe code, then you may define BOOST_MATH_BERNOULLI_UNTHREADED to suppress this error.");
#else
//
// Double-checked locking pattern, lets us access cached already cached values
@@ -555,7 +559,7 @@ class bernoulli_numbers_cache
// The value at which we know overflow has already occurred for the Bn:
std::size_t m_overflow_limit;

- #ifdef BOOST_HAS_THREADS
+ #if defined(BOOST_HAS_THREADS) && !defined(BOOST_MATH_NO_ATOMIC_INT)
std::mutex m_mutex;
atomic_counter_type m_counter, m_current_precision;
#else
diff --git a/libs/math/test/Jamfile.v2 b/libs/math/test/Jamfile.v2
index 52fb87f5e5..3ac63f9279 100644
--- a/libs/math/test/Jamfile.v2
+++ b/libs/math/test/Jamfile.v2
@@ -1137,6 +1137,9 @@ test-suite misc :

# [ run __temporary_test.cpp test_instances//test_instances : : : <test-info>always_show_run_output <pch>off ]
[ compile test_no_long_double_policy.cpp ]
+ [ compile compile_test/bernoulli_no_atomic_d.cpp ]
+ [ compile compile_test/bernoulli_no_atomic_mp.cpp ]
+ [ compile-fail compile_test/bernoulli_no_atomic_fail.cpp ]
;

test-suite interpolators :
diff --git a/test/compile_test/bernoulli_no_atomic_d.cpp b/test/compile_test/bernoulli_no_atomic_d.cpp
new file mode 100644
index 0000000000..61926f7e1f
--- /dev/null
+++ b/test/compile_test/bernoulli_no_atomic_d.cpp
@@ -0,0 +1,14 @@
+// (C) Copyright John Maddock 2021.
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_MATH_NO_ATOMIC_INT
+
+#include <boost/math/special_functions/bernoulli.hpp>
+#include "test_compile_result.hpp"
+
+void compile_and_link_test()
+{
+ check_result<double>(boost::math::bernoulli_b2n<double>(4));
+}
diff --git a/test/compile_test/bernoulli_no_atomic_fail.cpp b/test/compile_test/bernoulli_no_atomic_fail.cpp
new file mode 100644
index 0000000000..bbd7152412
--- /dev/null
+++ b/test/compile_test/bernoulli_no_atomic_fail.cpp
@@ -0,0 +1,15 @@
+// (C) Copyright John Maddock 2021.
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_MATH_NO_ATOMIC_INT
+
+#include <boost/math/special_functions/bernoulli.hpp>
+#include <boost/multiprecision/cpp_bin_float.hpp>
+#include "test_compile_result.hpp"
+
+void compile_and_link_test()
+{
+ check_result<boost::multiprecision::cpp_bin_float_50>(boost::math::bernoulli_b2n<boost::multiprecision::cpp_bin_float_50>(4));
+}
diff --git a/test/compile_test/bernoulli_no_atomic_mp.cpp b/test/compile_test/bernoulli_no_atomic_mp.cpp
new file mode 100644
index 0000000000..8d5a6e78e6
--- /dev/null
+++ b/test/compile_test/bernoulli_no_atomic_mp.cpp
@@ -0,0 +1,16 @@
+// (C) Copyright John Maddock 2021.
+// Use, modification and distribution are subject to the
+// Boost Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_MATH_NO_ATOMIC_INT
+#define BOOST_MATH_BERNOULLI_UNTHREADED
+
+#include <boost/math/special_functions/bernoulli.hpp>
+#include <boost/multiprecision/cpp_bin_float.hpp>
+#include "test_compile_result.hpp"
+
+void compile_and_link_test()
+{
+ check_result<boost::multiprecision::cpp_bin_float_50>(boost::math::bernoulli_b2n<boost::multiprecision::cpp_bin_float_50>(4));
+}
2 changes: 2 additions & 0 deletions meta/recipes-support/boost/boost_1.77.0.bb
Original file line number Diff line number Diff line change
Expand Up @@ -7,4 +7,6 @@ SRC_URI += "file://boost-CVE-2012-2677.patch \
file://0001-dont-setup-compiler-flags-m32-m64.patch \
file://0001-fiber-libs-Define-SYS_futex-if-it-does-not-exist.patch \
file://0001-BoostConfig.cmake-allow-searching-for-python310.patch \
file://0002-math-allow-definition-of-boost_math_no_atomic_int-on-the-command-line.patch \
file://0003-math-make-no-atomics-a-soft-failure-in-bernoulli_details_hpp.patch \
"

0 comments on commit 6dc28db

Please sign in to comment.