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Mac OS: Tag mapped pages.

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This can be used to help profiling tools (e.g. vmmap) identify the
sources of mappings more specifically.
This commit is contained in:
David CARLIER
2021-01-26 21:49:08 +00:00
committed by David Goldblatt
parent f6699803e2
commit 35a8552605
3 changed files with 22 additions and 2 deletions
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12
configure.ac
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@@ -926,6 +926,18 @@ if test "x${je_cv_cold}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR_COLD], [ ])
fi
dnl Check for VM_MAKE_TAG for mmap support.
JE_COMPILABLE([vm_make_tag],
[#include <sys/mman.h>
#include <mach/vm_statistics.h>],
[void *p;
p = mmap(0, 16, PROT_READ, MAP_ANON|MAP_PRIVATE, VM_MAKE_TAG(1), 0);
munmap(p, 16);],
[je_cv_vm_make_tag])
if test "x${je_cv_vm_make_tag}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_VM_MAKE_TAG], [ ])
fi
dnl Support optional additions to rpath.
AC_ARG_WITH([rpath],
[AS_HELP_STRING([--with-rpath=<rpath>], [Colon-separated rpath (ELF systems only)])],