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Add configure test for alloc_size attribute.

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This commit is contained in:
Jason Evans 2015-07-10 16:41:12 -07:00
parent ae93d6bf36
commit 0b8f0bc0a4
3 changed files with 21 additions and 2 deletions
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11
configure.ac
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@ -428,6 +428,17 @@ if test "x${je_cv_tls_model}" = "xyes" ; then
else
AC_DEFINE([JEMALLOC_TLS_MODEL], [ ])
fi
dnl Check for alloc_size attribute support.
SAVED_CFLAGS="${CFLAGS}"
JE_CFLAGS_APPEND([-Werror])
JE_COMPILABLE([alloc_size attribute], [],
[#include <stdlib.h>
static void *foo(size_t size) __attribute__((alloc_size(1)));],
[je_cv_alloc_size])
CFLAGS="${SAVED_CFLAGS}"
if test "x${je_cv_alloc_size}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR_ALLOC_SIZE], [ ])
fi
dnl Support optional additions to rpath.
AC_ARG_WITH([rpath],

3
include/jemalloc/jemalloc_defs.h.in
View File

@ -1,6 +1,9 @@
/* Defined if __attribute__((...)) syntax is supported. */
#undef JEMALLOC_HAVE_ATTR
/* Defined if alloc_size attribute is supported. */
#undef JEMALLOC_HAVE_ATTR_ALLOC_SIZE
/*
* Define overrides for non-standard allocator-related functions if they are
* present on the system.

9
include/jemalloc/jemalloc_macros.h.in
View File

@ -42,8 +42,13 @@
# define JEMALLOC_EXPORT JEMALLOC_ATTR(visibility("default"))
# endif
# define JEMALLOC_ALIGNED(s) JEMALLOC_ATTR(aligned(s))
# define JEMALLOC_ALLOC_SIZE(s) JEMALLOC_ATTR(alloc_size(s))
# define JEMALLOC_ALLOC_SIZE2(s1, s2) JEMALLOC_ATTR(alloc_size(s1, s2))
# ifdef JEMALLOC_HAVE_ATTR_ALLOC_SIZE
# define JEMALLOC_ALLOC_SIZE(s) JEMALLOC_ATTR(alloc_size(s))
# define JEMALLOC_ALLOC_SIZE2(s1, s2) JEMALLOC_ATTR(alloc_size(s1, s2))
# else
# define JEMALLOC_ALLOC_SIZE(s)
# define JEMALLOC_ALLOC_SIZE2(s1, s2)
# endif
# define JEMALLOC_NOINLINE JEMALLOC_ATTR(noinline)
# define JEMALLOC_NOTHROW JEMALLOC_ATTR(nothrow)
# define JEMALLOC_SECTION(s) JEMALLOC_ATTR(section(s))