e20cc41e56
This commit adds support for systems where the jemalloc library is not
available as a package, here's the quick summary:
* On Linux - the jemalloc is usually available as a package, if
configured --without-jemalloc, the shim would be used around
malloc(), free(), realloc() and malloc_usable_size()
* On macOS - the jemalloc is available from homebrew or macports, if
configured --without-jemalloc, the shim would be used around
malloc(), free(), realloc() and malloc_size()
* On FreeBSD - the jemalloc is *the* system allocator, we just need
to check for <malloc_np.h> header to get access to non-standard API
* On NetBSD - the jemalloc is *the* system allocator, we just need to
check for <jemalloc/jemalloc.h> header to get access to non-standard
API
* On a system hostile to users and developers (read OpenBSD) - the
jemalloc API is emulated by using ((size_t *)ptr)[-1] field to hold
the size information. The OpenBSD developers care only for
themselves, so why should we care about speed on OpenBSD?
54 lines
1.3 KiB
Plaintext
54 lines
1.3 KiB
Plaintext
# ===========================================================================
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# https://gitlab.isc.org/isc-projects/autoconf-archive/ax_jemalloc.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_CHECK_JEMALLOC([, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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#
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# DESCRIPTION
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#
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# Test for the jemalloc library in a path
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#
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# LICENSE
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#
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# Copyright (c) 2021 Internet Systems Consortium
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 1
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#
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AC_DEFUN([AX_CHECK_JEMALLOC], [
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found=false
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PKG_CHECK_MODULES(
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[JEMALLOC], [jemalloc],
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[
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found=true
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], [
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AC_CHECK_HEADERS([malloc_np.h jemalloc/jemalloc.h],
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[
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save_LIBS="$LIBS"
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save_LDFLAGS="$LDFLAGS"
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save_CPPFLAGS="$CPPFLAGS"
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AC_SEARCH_LIBS([mallocx], [jemalloc],
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[
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found=true
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AS_IF([test "$ac_cv_search_mallocx" != "none required"],
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[JEMALLOC_LIBS="$ac_cv_search_mallocx"])
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])
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CPPFLAGS="$save_CPPFLAGS"
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LDFLAGS="$save_LDFLAGS"
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LIBS="$save_LIBS"
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])
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])
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AS_IF([$found], [$1], [$2])
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AC_SUBST([JEMALLOC_CFLAGS])
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AC_SUBST([JEMALLOC_LIBS])
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])
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