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Add support for the deprecated attribute

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This is useful for enforcing the usage of getter/setter functions to
access fields which are considered private or have unique access constraints.
This commit is contained in:
Kevin Svetlitski
2023-08-03 15:05:10 -07:00
committed by Qi Wang
parent 162ff8365d
commit 120abd703a
4 changed files with 48 additions and 0 deletions
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24
configure.ac
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@@ -988,6 +988,30 @@ if test "x${je_cv_cold}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR_COLD], [ ], [ ])
fi
dnl Check for deprecated attribute support.
JE_CFLAGS_SAVE()
JE_CFLAGS_ADD([-Wdeprecated-declarations])
JE_COMPILABLE([deprecated attribute],
[#if !__has_attribute(deprecated)
#error "deprecated attribute not supported"
#endif
struct has_deprecated_field {
int good;
int __attribute__((deprecated("Do not use"))) bad;
};
],
[struct has_deprecated_field instance;
instance.good = 0;
instance.bad = 1;
],
[je_cv_deprecated])
JE_CFLAGS_RESTORE()
if test "x${je_cv_deprecated}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR_DEPRECATED], [ ], [ ])
JE_CFLAGS_ADD([-Wdeprecated-declarations])
JE_CXXFLAGS_ADD([-Wdeprecated-declarations])
fi
dnl Check for VM_MAKE_TAG for mmap support.
JE_COMPILABLE([vm_make_tag],
[#include <sys/mman.h>