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Add the __optnone__ attribute #4626

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Merged
merged 1 commit into from
Dec 14, 2017
Merged

Add the __optnone__ attribute #4626

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13 changes: 13 additions & 0 deletions config/opal_check_attributes.m4
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ dnl Copyright (c) 2013 Mellanox Technologies, Inc.
dnl All rights reserved.
dnl Copyright (c) 2015 Research Organization for Information Science
dnl and Technology (RIST). All rights reserved.
dnl Copyright (c) 2017 Intel, Inc. All rights reserved.
dnl $COPYRIGHT$
dnl
dnl Additional copyrights may follow
Expand Down Expand Up @@ -221,6 +222,7 @@ AC_DEFUN([OPAL_CHECK_ATTRIBUTES], [
opal_cv___attribute__warn_unused_result=0
opal_cv___attribute__weak_alias=0
opal_cv___attribute__destructor=0
opal_cv___attribute__optnone=0
else
AC_MSG_RESULT([yes])

Expand Down Expand Up @@ -556,6 +558,15 @@ AC_DEFUN([OPAL_CHECK_ATTRIBUTES], [
],
[],
[])

_OPAL_CHECK_SPECIFIC_ATTRIBUTE([optnone],
[
void foo(void) __attribute__ ((__optnone__));
void foo(void) { return ; }
],
[],
[])

fi

# Now that all the values are set, define them
Expand Down Expand Up @@ -608,4 +619,6 @@ AC_DEFUN([OPAL_CHECK_ATTRIBUTES], [
[Whether your compiler has __attribute__ weak alias or not])
AC_DEFINE_UNQUOTED(OPAL_HAVE_ATTRIBUTE_DESTRUCTOR, [$opal_cv___attribute__destructor],
[Whether your compiler has __attribute__ destructor or not])
AC_DEFINE_UNQUOTED(OPAL_HAVE_ATTRIBUTE_OPTNONE, [$opal_cv___attribute__optnone],
[Whether your compiler has __attribute__ optnone or not])
])
14 changes: 10 additions & 4 deletions opal/include/opal_config_bottom.h
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@
* All rights reserved.
* Copyright (c) 2015-2017 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2015 Intel, Inc. All rights reserved.
* Copyright (c) 2015-2017 Intel, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand Down Expand Up @@ -234,6 +234,12 @@
# define __opal_attribute_destructor__
#endif

#if OPAL_HAVE_ATTRIBUTE_OPTNONE
# define __opal_attribute_optnone__ __attribute__((__optnone__))
#else
# define __opal_attribute_optnone__
#endif

# if OPAL_C_HAVE_VISIBILITY
# define OPAL_DECLSPEC __opal_attribute_visibility__("default")
# define OPAL_MODULE_DECLSPEC __opal_attribute_visibility__("default")
Expand Down Expand Up @@ -268,11 +274,11 @@
#include <sys/param.h>
#endif
#if defined(PATH_MAX)
#define OPAL_PATH_MAX (PATH_MAX + 1)
#define OPAL_PATH_MAX (PATH_MAX + 1)
#elif defined(_POSIX_PATH_MAX)
#define OPAL_PATH_MAX (_POSIX_PATH_MAX + 1)
#define OPAL_PATH_MAX (_POSIX_PATH_MAX + 1)
#else
#define OPAL_PATH_MAX 256
#define OPAL_PATH_MAX 256
#endif

/*
Expand Down
2 changes: 1 addition & 1 deletion orte/orted/orted_submit.c
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Expand Up @@ -173,7 +173,7 @@ char MPIR_attach_fifo[MPIR_MAX_PATH_LENGTH] = {0};
int MPIR_force_to_main = 0;
static void orte_debugger_init_before_spawn(orte_job_t *jdata);

ORTE_DECLSPEC void* MPIR_Breakpoint(void);
ORTE_DECLSPEC void* MPIR_Breakpoint(void) __opal_attribute_optnone__;

/*
* Breakpoint function for parallel debuggers
Expand Down