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Disable posix_memalign on Solaris and SunOS, and allows to by-pass built-in posix_memalign detection rules.

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This commit is contained in:
Gael Guennebaud 2015-04-24 11:26:51 +02:00
parent 1681a665d9
commit de18cd413d
3 changed files with 29 additions and 11 deletions
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13
Eigen/src/Core/util/Macros.h
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@ -283,6 +283,19 @@
#define EIGEN_OS_WIN_STRICT 0
#endif
/// \internal EIGEN_OS_SUN set to 1 if the OS is SUN
#if (defined(sun) || defined(__sun)) && !(defined(__SVR4) || defined(__svr4__))
#define EIGEN_OS_SUN 1
#else
#define EIGEN_OS_SUN 0
#endif
/// \internal EIGEN_OS_SOLARIS set to 1 if the OS is Solaris
#if (defined(sun) || defined(__sun)) && (defined(__SVR4) || defined(__svr4__))
#define EIGEN_OS_SOLARIS 1
#else
#define EIGEN_OS_SOLARIS 0
#endif

24
Eigen/src/Core/util/Memory.h
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@ -59,18 +59,20 @@
#endif
// See bug 554 (http://eigen.tuxfamily.org/bz/show_bug.cgi?id=554)
// It seems to be unsafe to check _POSIX_ADVISORY_INFO without including unistd.h first.
// Currently, let's include it only on unix systems:
#if EIGEN_OS_UNIX
#include <unistd.h>
#if (EIGEN_OS_QNX || (defined _GNU_SOURCE) || EIGEN_COMP_PGI || ((defined _XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600))) && (defined _POSIX_ADVISORY_INFO) && (_POSIX_ADVISORY_INFO > 0)
#define EIGEN_HAS_POSIX_MEMALIGN 1
#endif
#endif
#ifndef EIGEN_HAS_POSIX_MEMALIGN
#define EIGEN_HAS_POSIX_MEMALIGN 0
// See bug 554 (http://eigen.tuxfamily.org/bz/show_bug.cgi?id=554)
// It seems to be unsafe to check _POSIX_ADVISORY_INFO without including unistd.h first.
// Currently, let's include it only on unix systems:
#if EIGEN_OS_UNIX && !(EIGEN_OS_SUN || EIGEN_OS_SOLARIS)
#include <unistd.h>
#if (EIGEN_OS_QNX || (defined _GNU_SOURCE) || EIGEN_COMP_PGI || ((defined _XOPEN_SOURCE) && (_XOPEN_SOURCE >= 600))) && (defined _POSIX_ADVISORY_INFO) && (_POSIX_ADVISORY_INFO > 0)
#define EIGEN_HAS_POSIX_MEMALIGN 1
#endif
#endif
#ifndef EIGEN_HAS_POSIX_MEMALIGN
#define EIGEN_HAS_POSIX_MEMALIGN 0
#endif
#endif
#if defined EIGEN_VECTORIZE_SSE || defined EIGEN_VECTORIZE_AVX

3
doc/PreprocessorDirectives.dox
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@ -87,6 +87,9 @@ run time. However, these assertions do cost time and can thus be turned off.
- \b EIGEN_STACK_ALLOCATION_LIMIT - defines the maximum bytes for a buffer to be allocated on the stack. For internal
temporary buffers, dynamic memory allocation is employed as a fall back. For fixed-size matrices or arrays, exceeding
this threshold raises a compile time assertion. Use 0 to set no limit. Default is 128 KB.
- \b EIGEN_HAS_POSIX_MEMALIGN - defines whether aligned memory allocation can be performed through the \c posix_memalign
function. The availability of \c posix_memalign is automatically checked on most platform, but this option allows to
by-pass %Eigen's built-in rules.
\section TopicPreprocessorDirectivesPlugins Plugins