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configure.ac
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configure.ac
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dnl Process this file with autoconf to produce a configure script.
AC_INIT([Makefile.in])
dnl ============================================================================
dnl Custom macro definitions.
dnl JE_CFLAGS_APPEND(cflag)
AC_DEFUN([JE_CFLAGS_APPEND],
[
AC_MSG_CHECKING([whether compiler supports $1])
TCFLAGS="${CFLAGS}"
if test "x${CFLAGS}" = "x" ; then
CFLAGS="$1"
else
CFLAGS="${CFLAGS} $1"
fi
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[
]], [[
return 0;
]])],
AC_MSG_RESULT([yes]),
AC_MSG_RESULT([no])
[CFLAGS="${TCFLAGS}"]
)
])
dnl JE_COMPILABLE(label, hcode, mcode, rvar)
dnl
dnl Use AC_LINK_IFELSE() rather than AC_COMPILE_IFELSE() so that linker errors
dnl cause failure.
AC_DEFUN([JE_COMPILABLE],
[
AC_CACHE_CHECK([whether $1 is compilable],
[$4],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([$2],
[$3])],
[$4=yes],
[$4=no])])
])
dnl ============================================================================
dnl Library revision.
rev=1
AC_SUBST([rev])
srcroot=$srcdir
if test "x${srcroot}" = "x." ; then
srcroot=""
else
srcroot="${srcroot}/"
fi
AC_SUBST([srcroot])
abs_srcroot="`cd \"${srcdir}\"; pwd`/"
AC_SUBST([abs_srcroot])
objroot=""
AC_SUBST([objroot])
abs_objroot="`pwd`/"
AC_SUBST([abs_objroot])
dnl Munge install path variables.
if test "x$prefix" = "xNONE" ; then
prefix="/usr/local"
fi
if test "x$exec_prefix" = "xNONE" ; then
exec_prefix=$prefix
fi
PREFIX=$prefix
AC_SUBST([PREFIX])
BINDIR=`eval echo $bindir`
BINDIR=`eval echo $BINDIR`
AC_SUBST([BINDIR])
INCLUDEDIR=`eval echo $includedir`
INCLUDEDIR=`eval echo $INCLUDEDIR`
AC_SUBST([INCLUDEDIR])
LIBDIR=`eval echo $libdir`
LIBDIR=`eval echo $LIBDIR`
AC_SUBST([LIBDIR])
DATADIR=`eval echo $datadir`
DATADIR=`eval echo $DATADIR`
AC_SUBST([DATADIR])
MANDIR=`eval echo $mandir`
MANDIR=`eval echo $MANDIR`
AC_SUBST([MANDIR])
dnl Support for building documentation.
AC_PATH_PROG([XSLTPROC], [xsltproc], , [$PATH])
if test -d "/usr/share/xml/docbook/stylesheet/docbook-xsl" ; then
DEFAULT_XSLROOT="/usr/share/xml/docbook/stylesheet/docbook-xsl"
elif test -d "/usr/share/sgml/docbook/xsl-stylesheets" ; then
DEFAULT_XSLROOT="/usr/share/sgml/docbook/xsl-stylesheets"
else
dnl Documentation building will fail if this default gets used.
DEFAULT_XSLROOT=""
fi
AC_ARG_WITH([xslroot],
[AS_HELP_STRING([--with-xslroot=<path>], [XSL stylesheet root path])], [
if test "x$with_xslroot" = "xno" ; then
XSLROOT="${DEFAULT_XSLROOT}"
else
XSLROOT="${with_xslroot}"
fi
],
XSLROOT="${DEFAULT_XSLROOT}"
)
AC_SUBST([XSLROOT])
dnl If CFLAGS isn't defined, set CFLAGS to something reasonable. Otherwise,
dnl just prevent autoconf from molesting CFLAGS.
CFLAGS=$CFLAGS
AC_PROG_CC
if test "x$GCC" != "xyes" ; then
AC_CACHE_CHECK([whether compiler is MSVC],
[je_cv_msvc],
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([],
[
#ifndef _MSC_VER
int fail[-1];
#endif
])],
[je_cv_msvc=yes],
[je_cv_msvc=no])])
fi
if test "x$CFLAGS" = "x" ; then
no_CFLAGS="yes"
if test "x$GCC" = "xyes" ; then
JE_CFLAGS_APPEND([-std=gnu99])
JE_CFLAGS_APPEND([-Wall])
JE_CFLAGS_APPEND([-pipe])
JE_CFLAGS_APPEND([-g3])
elif test "x$je_cv_msvc" = "xyes" ; then
CC="$CC -nologo"
JE_CFLAGS_APPEND([-Zi])
JE_CFLAGS_APPEND([-MT])
JE_CFLAGS_APPEND([-W3])
CPPFLAGS="$CPPFLAGS -I${srcroot}/include/msvc_compat"
fi
fi
dnl Append EXTRA_CFLAGS to CFLAGS, if defined.
if test "x$EXTRA_CFLAGS" != "x" ; then
JE_CFLAGS_APPEND([$EXTRA_CFLAGS])
fi
AC_PROG_CPP
AC_CHECK_SIZEOF([void *])
if test "x${ac_cv_sizeof_void_p}" = "x8" ; then
LG_SIZEOF_PTR=3
elif test "x${ac_cv_sizeof_void_p}" = "x4" ; then
LG_SIZEOF_PTR=2
else
AC_MSG_ERROR([Unsupported pointer size: ${ac_cv_sizeof_void_p}])
fi
AC_DEFINE_UNQUOTED([LG_SIZEOF_PTR], [$LG_SIZEOF_PTR])
AC_CHECK_SIZEOF([int])
if test "x${ac_cv_sizeof_int}" = "x8" ; then
LG_SIZEOF_INT=3
elif test "x${ac_cv_sizeof_int}" = "x4" ; then
LG_SIZEOF_INT=2
else
AC_MSG_ERROR([Unsupported int size: ${ac_cv_sizeof_int}])
fi
AC_DEFINE_UNQUOTED([LG_SIZEOF_INT], [$LG_SIZEOF_INT])
AC_CHECK_SIZEOF([long])
if test "x${ac_cv_sizeof_long}" = "x8" ; then
LG_SIZEOF_LONG=3
elif test "x${ac_cv_sizeof_long}" = "x4" ; then
LG_SIZEOF_LONG=2
else
AC_MSG_ERROR([Unsupported long size: ${ac_cv_sizeof_long}])
fi
AC_DEFINE_UNQUOTED([LG_SIZEOF_LONG], [$LG_SIZEOF_LONG])
AC_CHECK_SIZEOF([intmax_t])
if test "x${ac_cv_sizeof_intmax_t}" = "x16" ; then
LG_SIZEOF_INTMAX_T=4
elif test "x${ac_cv_sizeof_intmax_t}" = "x8" ; then
LG_SIZEOF_INTMAX_T=3
elif test "x${ac_cv_sizeof_intmax_t}" = "x4" ; then
LG_SIZEOF_INTMAX_T=2
else
AC_MSG_ERROR([Unsupported intmax_t size: ${ac_cv_sizeof_intmax_t}])
fi
AC_DEFINE_UNQUOTED([LG_SIZEOF_INTMAX_T], [$LG_SIZEOF_INTMAX_T])
AC_CANONICAL_HOST
dnl CPU-specific settings.
CPU_SPINWAIT=""
case "${host_cpu}" in
i[[345]]86)
;;
i686)
JE_COMPILABLE([__asm__], [], [[__asm__ volatile("pause"); return 0;]],
[je_cv_asm])
if test "x${je_cv_asm}" = "xyes" ; then
CPU_SPINWAIT='__asm__ volatile("pause")'
fi
;;
x86_64)
JE_COMPILABLE([__asm__ syntax], [],
[[__asm__ volatile("pause"); return 0;]], [je_cv_asm])
if test "x${je_cv_asm}" = "xyes" ; then
CPU_SPINWAIT='__asm__ volatile("pause")'
fi
;;
*)
;;
esac
AC_DEFINE_UNQUOTED([CPU_SPINWAIT], [$CPU_SPINWAIT])
LD_PRELOAD_VAR="LD_PRELOAD"
so="so"
importlib="${so}"
o="$ac_objext"
a="a"
exe="$ac_exeext"
libprefix="lib"
DSO_LDFLAGS='-shared -Wl,-soname,$(@F)'
RPATH='-Wl,-rpath,$(1)'
SOREV="${so}.${rev}"
PIC_CFLAGS='-fPIC -DPIC'
CTARGET='-o $@'
LDTARGET='-o $@'
EXTRA_LDFLAGS=
MKLIB='ar crus $@'
CC_MM=1
dnl Platform-specific settings. abi and RPATH can probably be determined
dnl programmatically, but doing so is error-prone, which makes it generally
dnl not worth the trouble.
dnl
dnl Define cpp macros in CPPFLAGS, rather than doing AC_DEFINE(macro), since the
dnl definitions need to be seen before any headers are included, which is a pain
dnl to make happen otherwise.
default_munmap="1"
JEMALLOC_USABLE_SIZE_CONST="const"
case "${host}" in
*-*-darwin*)
CFLAGS="$CFLAGS"
abi="macho"
AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
RPATH=""
LD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"
so="dylib"
importlib="${so}"
force_tls="0"
DSO_LDFLAGS='-shared -Wl,-dylib_install_name,$(@F)'
SOREV="${rev}.${so}"
;;
*-*-freebsd*)
CFLAGS="$CFLAGS"
abi="elf"
AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
force_lazy_lock="1"
;;
*-*-linux*)
CFLAGS="$CFLAGS"
CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
abi="elf"
AC_DEFINE([JEMALLOC_PURGE_MADVISE_DONTNEED], [ ])
AC_DEFINE([JEMALLOC_THREADED_INIT], [ ])
JEMALLOC_USABLE_SIZE_CONST=""
default_munmap="0"
;;
*-*-netbsd*)
AC_MSG_CHECKING([ABI])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
[[#ifdef __ELF__
/* ELF */
#else
#error aout
#endif
]])],
[CFLAGS="$CFLAGS"; abi="elf"],
[abi="aout"])
AC_MSG_RESULT([$abi])
AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE], [ ])
;;
*-*-solaris2*)
CFLAGS="$CFLAGS"
abi="elf"
RPATH='-Wl,-R,$(1)'
dnl Solaris needs this for sigwait().
CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
LIBS="$LIBS -lposix4 -lsocket -lnsl"
;;
*-ibm-aix*)
if "$LG_SIZEOF_PTR" = "8"; then
dnl 64bit AIX
LD_PRELOAD_VAR="LDR_PRELOAD64"
else
dnl 32bit AIX
LD_PRELOAD_VAR="LDR_PRELOAD"
fi
abi="xcoff"
;;
*-*-mingw*)
abi="pecoff"
force_tls="0"
RPATH=""
so="dll"
if test "x$je_cv_msvc" = "xyes" ; then
importlib="lib"
DSO_LDFLAGS="-LD"
EXTRA_LDFLAGS="-link -DEBUG"
CTARGET='-Fo$@'
LDTARGET='-Fe$@'
MKLIB='lib -nologo -out:$@'
CC_MM=
else
importlib="${so}"
DSO_LDFLAGS="-shared"
fi
a="lib"
libprefix=""
SOREV="${so}"
PIC_CFLAGS=""
;;
*)
AC_MSG_RESULT([Unsupported operating system: ${host}])
abi="elf"
;;
esac
AC_DEFINE_UNQUOTED([JEMALLOC_USABLE_SIZE_CONST], [$JEMALLOC_USABLE_SIZE_CONST])
AC_SUBST([abi])
AC_SUBST([RPATH])
AC_SUBST([LD_PRELOAD_VAR])
AC_SUBST([so])
AC_SUBST([importlib])
AC_SUBST([o])
AC_SUBST([a])
AC_SUBST([exe])
AC_SUBST([libprefix])
AC_SUBST([DSO_LDFLAGS])
AC_SUBST([EXTRA_LDFLAGS])
AC_SUBST([SOREV])
AC_SUBST([PIC_CFLAGS])
AC_SUBST([CTARGET])
AC_SUBST([LDTARGET])
AC_SUBST([MKLIB])
AC_SUBST([CC_MM])
if test "x$abi" != "xpecoff"; then
dnl Heap profiling uses the log(3) function.
LIBS="$LIBS -lm"
fi
JE_COMPILABLE([__attribute__ syntax],
[static __attribute__((unused)) void foo(void){}],
[],
[je_cv_attribute])
if test "x${je_cv_attribute}" = "xyes" ; then
AC_DEFINE([JEMALLOC_HAVE_ATTR], [ ])
if test "x${GCC}" = "xyes" -a "x${abi}" = "xelf"; then
JE_CFLAGS_APPEND([-fvisibility=hidden])
fi
fi
dnl Check for tls_model attribute support (clang 3.0 still lacks support).
SAVED_CFLAGS="${CFLAGS}"
JE_CFLAGS_APPEND([-Werror])
JE_COMPILABLE([tls_model attribute], [],
[static __thread int
__attribute__((tls_model("initial-exec"))) foo;
foo = 0;],
[je_cv_tls_model])
CFLAGS="${SAVED_CFLAGS}"
if test "x${je_cv_tls_model}" = "xyes" ; then
AC_DEFINE([JEMALLOC_TLS_MODEL],
[__attribute__((tls_model("initial-exec")))])
else
AC_DEFINE([JEMALLOC_TLS_MODEL], [ ])
fi
dnl Support optional additions to rpath.
AC_ARG_WITH([rpath],
[AS_HELP_STRING([--with-rpath=<rpath>], [Colon-separated rpath (ELF systems only)])],
if test "x$with_rpath" = "xno" ; then
RPATH_EXTRA=
else
RPATH_EXTRA="`echo $with_rpath | tr \":\" \" \"`"
fi,
RPATH_EXTRA=
)
AC_SUBST([RPATH_EXTRA])
dnl Disable rules that do automatic regeneration of configure output by default.
AC_ARG_ENABLE([autogen],
[AS_HELP_STRING([--enable-autogen], [Automatically regenerate configure output])],
if test "x$enable_autogen" = "xno" ; then
enable_autogen="0"
else
enable_autogen="1"
fi
,
enable_autogen="0"
)
AC_SUBST([enable_autogen])
AC_PROG_INSTALL
AC_PROG_RANLIB
AC_PATH_PROG([AR], [ar], , [$PATH])
AC_PATH_PROG([LD], [ld], , [$PATH])
AC_PATH_PROG([AUTOCONF], [autoconf], , [$PATH])
public_syms="malloc_conf malloc_message malloc calloc posix_memalign aligned_alloc realloc free malloc_usable_size malloc_stats_print mallctl mallctlnametomib mallctlbymib"
dnl Check for allocator-related functions that should be wrapped.
AC_CHECK_FUNC([memalign],
[AC_DEFINE([JEMALLOC_OVERRIDE_MEMALIGN], [ ])
public_syms="${public_syms} memalign"])
AC_CHECK_FUNC([valloc],
[AC_DEFINE([JEMALLOC_OVERRIDE_VALLOC], [ ])
public_syms="${public_syms} valloc"])
dnl Support the experimental API by default.
AC_ARG_ENABLE([experimental],
[AS_HELP_STRING([--disable-experimental],
[Disable support for the experimental API])],
[if test "x$enable_experimental" = "xno" ; then
enable_experimental="0"
else
enable_experimental="1"
fi
],
[enable_experimental="1"]
)
if test "x$enable_experimental" = "x1" ; then
AC_DEFINE([JEMALLOC_EXPERIMENTAL], [ ])
public_syms="${public_syms} allocm dallocm nallocm rallocm sallocm"
fi
AC_SUBST([enable_experimental])
dnl Perform no name mangling by default.
AC_ARG_WITH([mangling],
[AS_HELP_STRING([--with-mangling=<map>], [Mangle symbols in <map>])],
[mangling_map="$with_mangling"], [mangling_map=""])
for nm in `echo ${mangling_map} |tr ',' ' '` ; do
k="`echo ${nm} |tr ':' ' ' |awk '{print $1}'`"
n="je_${k}"
m=`echo ${nm} |tr ':' ' ' |awk '{print $2}'`
AC_DEFINE_UNQUOTED([${n}], [${m}])
dnl Remove key from public_syms so that it isn't redefined later.
public_syms=`for sym in ${public_syms}; do echo "${sym}"; done |grep -v "^${k}\$" |tr '\n' ' '`
done
dnl Do not prefix public APIs by default.
AC_ARG_WITH([jemalloc_prefix],
[AS_HELP_STRING([--with-jemalloc-prefix=<prefix>], [Prefix to prepend to all public APIs])],
[JEMALLOC_PREFIX="$with_jemalloc_prefix"],
[if test "x$abi" != "xmacho" -a "x$abi" != "xpecoff"; then
JEMALLOC_PREFIX=""
else
JEMALLOC_PREFIX="je_"
fi]
)
if test "x$JEMALLOC_PREFIX" != "x" ; then
JEMALLOC_CPREFIX=`echo ${JEMALLOC_PREFIX} | tr "a-z" "A-Z"`
AC_DEFINE_UNQUOTED([JEMALLOC_PREFIX], ["$JEMALLOC_PREFIX"])
AC_DEFINE_UNQUOTED([JEMALLOC_CPREFIX], ["$JEMALLOC_CPREFIX"])
fi
dnl Generate macros to rename public symbols. All public symbols are prefixed
dnl with je_ in the source code, so these macro definitions are needed even if
dnl --with-jemalloc-prefix wasn't specified.
for stem in ${public_syms}; do
n="je_${stem}"
m="${JEMALLOC_PREFIX}${stem}"
AC_DEFINE_UNQUOTED([${n}], [${m}])
done
dnl Do not mangle library-private APIs by default.
AC_ARG_WITH([private_namespace],
[AS_HELP_STRING([--with-private-namespace=<prefix>], [Prefix to prepend to all library-private APIs])],
[JEMALLOC_PRIVATE_NAMESPACE="$with_private_namespace"],
[JEMALLOC_PRIVATE_NAMESPACE=""]
)
AC_DEFINE_UNQUOTED([JEMALLOC_PRIVATE_NAMESPACE], ["$JEMALLOC_PRIVATE_NAMESPACE"])
if test "x$JEMALLOC_PRIVATE_NAMESPACE" != "x" ; then
AC_DEFINE_UNQUOTED([JEMALLOC_N(string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix)], [${JEMALLOC_PRIVATE_NAMESPACE}##string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix])
else
AC_DEFINE_UNQUOTED([JEMALLOC_N(string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix)], [string_that_no_one_should_want_to_use_as_a_jemalloc_private_namespace_prefix])
fi
dnl Do not add suffix to installed files by default.
AC_ARG_WITH([install_suffix],
[AS_HELP_STRING([--with-install-suffix=<suffix>], [Suffix to append to all installed files])],
[INSTALL_SUFFIX="$with_install_suffix"],
[INSTALL_SUFFIX=]
)
install_suffix="$INSTALL_SUFFIX"
AC_SUBST([install_suffix])
cfgoutputs_in="${srcroot}Makefile.in"
cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/html.xsl.in"
cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/manpages.xsl.in"
cfgoutputs_in="${cfgoutputs_in} ${srcroot}doc/jemalloc.xml.in"
cfgoutputs_in="${cfgoutputs_in} ${srcroot}include/jemalloc/jemalloc.h.in"
cfgoutputs_in="${cfgoutputs_in} ${srcroot}include/jemalloc/internal/jemalloc_internal.h.in"
cfgoutputs_in="${cfgoutputs_in} ${srcroot}test/jemalloc_test.h.in"
cfgoutputs_out="Makefile"
cfgoutputs_out="${cfgoutputs_out} doc/html.xsl"
cfgoutputs_out="${cfgoutputs_out} doc/manpages.xsl"
cfgoutputs_out="${cfgoutputs_out} doc/jemalloc${install_suffix}.xml"
cfgoutputs_out="${cfgoutputs_out} include/jemalloc/jemalloc${install_suffix}.h"
cfgoutputs_out="${cfgoutputs_out} include/jemalloc/internal/jemalloc_internal.h"
cfgoutputs_out="${cfgoutputs_out} test/jemalloc_test.h"
cfgoutputs_tup="Makefile"
cfgoutputs_tup="${cfgoutputs_tup} doc/html.xsl:doc/html.xsl.in"
cfgoutputs_tup="${cfgoutputs_tup} doc/manpages.xsl:doc/manpages.xsl.in"
cfgoutputs_tup="${cfgoutputs_tup} doc/jemalloc${install_suffix}.xml:doc/jemalloc.xml.in"
cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/jemalloc${install_suffix}.h:include/jemalloc/jemalloc.h.in"
cfgoutputs_tup="${cfgoutputs_tup} include/jemalloc/internal/jemalloc_internal.h"
cfgoutputs_tup="${cfgoutputs_tup} test/jemalloc_test.h:test/jemalloc_test.h.in"
cfghdrs_in="${srcroot}include/jemalloc/jemalloc_defs.h.in"
cfghdrs_in="${cfghdrs_in} ${srcroot}include/jemalloc/internal/size_classes.sh"
cfghdrs_out="include/jemalloc/jemalloc_defs${install_suffix}.h"
cfghdrs_out="${cfghdrs_out} include/jemalloc/internal/size_classes.h"
cfghdrs_tup="include/jemalloc/jemalloc_defs${install_suffix}.h:include/jemalloc/jemalloc_defs.h.in"
dnl Do not silence irrelevant compiler warnings by default, since enabling this
dnl option incurs a performance penalty.
AC_ARG_ENABLE([cc-silence],
[AS_HELP_STRING([--enable-cc-silence],
[Silence irrelevant compiler warnings])],
[if test "x$enable_cc_silence" = "xno" ; then
enable_cc_silence="0"
else
enable_cc_silence="1"
fi
],
[enable_cc_silence="0"]
)
if test "x$enable_cc_silence" = "x1" ; then
AC_DEFINE([JEMALLOC_CC_SILENCE], [ ])
fi
dnl Do not compile with debugging by default.
AC_ARG_ENABLE([debug],
[AS_HELP_STRING([--enable-debug], [Build debugging code])],
[if test "x$enable_debug" = "xno" ; then
enable_debug="0"
else
enable_debug="1"
fi
],
[enable_debug="0"]
)
if test "x$enable_debug" = "x1" ; then
AC_DEFINE([JEMALLOC_DEBUG], [ ])
AC_DEFINE([JEMALLOC_IVSALLOC], [ ])
fi
AC_SUBST([enable_debug])
dnl Only optimize if not debugging.
if test "x$enable_debug" = "x0" -a "x$no_CFLAGS" = "xyes" ; then
dnl Make sure that an optimization flag was not specified in EXTRA_CFLAGS.
optimize="no"
echo "$EXTRA_CFLAGS" | grep "\-O" >/dev/null || optimize="yes"
if test "x${optimize}" = "xyes" ; then
if test "x$GCC" = "xyes" ; then
JE_CFLAGS_APPEND([-O3])
JE_CFLAGS_APPEND([-funroll-loops])
elif test "x$je_cv_msvc" = "xyes" ; then
JE_CFLAGS_APPEND([-O2])
else
JE_CFLAGS_APPEND([-O])
fi
fi
fi
dnl Enable statistics calculation by default.
AC_ARG_ENABLE([stats],
[AS_HELP_STRING([--disable-stats],
[Disable statistics calculation/reporting])],
[if test "x$enable_stats" = "xno" ; then
enable_stats="0"
else
enable_stats="1"
fi
],
[enable_stats="1"]
)
if test "x$enable_stats" = "x1" ; then
AC_DEFINE([JEMALLOC_STATS], [ ])
fi
AC_SUBST([enable_stats])
dnl Do not enable profiling by default.
AC_ARG_ENABLE([prof],
[AS_HELP_STRING([--enable-prof], [Enable allocation profiling])],
[if test "x$enable_prof" = "xno" ; then
enable_prof="0"
else
enable_prof="1"
fi
],
[enable_prof="0"]
)
if test "x$enable_prof" = "x1" ; then
backtrace_method=""
else
backtrace_method="N/A"
fi
AC_ARG_ENABLE([prof-libunwind],
[AS_HELP_STRING([--enable-prof-libunwind], [Use libunwind for backtracing])],
[if test "x$enable_prof_libunwind" = "xno" ; then
enable_prof_libunwind="0"
else
enable_prof_libunwind="1"
fi
],
[enable_prof_libunwind="0"]
)
AC_ARG_WITH([static_libunwind],
[AS_HELP_STRING([--with-static-libunwind=<libunwind.a>],
[Path to static libunwind library; use rather than dynamically linking])],
if test "x$with_static_libunwind" = "xno" ; then
LUNWIND="-lunwind"
else
if test ! -f "$with_static_libunwind" ; then
AC_MSG_ERROR([Static libunwind not found: $with_static_libunwind])
fi
LUNWIND="$with_static_libunwind"
fi,
LUNWIND="-lunwind"
)
if test "x$backtrace_method" = "x" -a "x$enable_prof_libunwind" = "x1" ; then
AC_CHECK_HEADERS([libunwind.h], , [enable_prof_libunwind="0"])
if test "x$LUNWIND" = "x-lunwind" ; then
AC_CHECK_LIB([unwind], [backtrace], [LIBS="$LIBS $LUNWIND"],
[enable_prof_libunwind="0"])
else
LIBS="$LIBS $LUNWIND"
fi
if test "x${enable_prof_libunwind}" = "x1" ; then
backtrace_method="libunwind"
AC_DEFINE([JEMALLOC_PROF_LIBUNWIND], [ ])
fi
fi
AC_ARG_ENABLE([prof-libgcc],
[AS_HELP_STRING([--disable-prof-libgcc],
[Do not use libgcc for backtracing])],
[if test "x$enable_prof_libgcc" = "xno" ; then
enable_prof_libgcc="0"
else
enable_prof_libgcc="1"
fi
],
[enable_prof_libgcc="1"]
)
if test "x$backtrace_method" = "x" -a "x$enable_prof_libgcc" = "x1" \
-a "x$GCC" = "xyes" ; then
AC_CHECK_HEADERS([unwind.h], , [enable_prof_libgcc="0"])
AC_CHECK_LIB([gcc], [_Unwind_Backtrace], [LIBS="$LIBS -lgcc"], [enable_prof_libgcc="0"])
dnl The following is conservative, in that it only has entries for CPUs on
dnl which jemalloc has been tested.
AC_MSG_CHECKING([libgcc-based backtracing reliability on ${host_cpu}])
case "${host_cpu}" in
i[[3456]]86)
AC_MSG_RESULT([unreliable])
enable_prof_libgcc="0";
;;
x86_64)
AC_MSG_RESULT([reliable])
;;
*)
AC_MSG_RESULT([unreliable])
enable_prof_libgcc="0";
;;
esac
if test "x${enable_prof_libgcc}" = "x1" ; then
backtrace_method="libgcc"
AC_DEFINE([JEMALLOC_PROF_LIBGCC], [ ])
fi
else
enable_prof_libgcc="0"
fi
AC_ARG_ENABLE([prof-gcc],
[AS_HELP_STRING([--disable-prof-gcc],
[Do not use gcc intrinsics for backtracing])],
[if test "x$enable_prof_gcc" = "xno" ; then
enable_prof_gcc="0"
else
enable_prof_gcc="1"
fi
],
[enable_prof_gcc="1"]
)
if test "x$backtrace_method" = "x" -a "x$enable_prof_gcc" = "x1" \
-a "x$GCC" = "xyes" ; then
backtrace_method="gcc intrinsics"
AC_DEFINE([JEMALLOC_PROF_GCC], [ ])
else
enable_prof_gcc="0"
fi
if test "x$backtrace_method" = "x" ; then
backtrace_method="none (disabling profiling)"
enable_prof="0"
fi
AC_MSG_CHECKING([configured backtracing method])
AC_MSG_RESULT([$backtrace_method])
if test "x$enable_prof" = "x1" ; then
if test "x${force_tls}" = "x0" ; then
AC_MSG_ERROR([Heap profiling requires TLS]);
fi
force_tls="1"
AC_DEFINE([JEMALLOC_PROF], [ ])
fi
AC_SUBST([enable_prof])
dnl Enable thread-specific caching by default.
AC_ARG_ENABLE([tcache],
[AS_HELP_STRING([--disable-tcache], [Disable per thread caches])],
[if test "x$enable_tcache" = "xno" ; then
enable_tcache="0"
else
enable_tcache="1"
fi
],
[enable_tcache="1"]
)
if test "x$enable_tcache" = "x1" ; then
AC_DEFINE([JEMALLOC_TCACHE], [ ])
fi
AC_SUBST([enable_tcache])
dnl Disable mremap() for huge realloc() by default.
AC_ARG_ENABLE([mremap],
[AS_HELP_STRING([--enable-mremap], [Enable mremap(2) for huge realloc()])],
[if test "x$enable_mremap" = "xno" ; then
enable_mremap="0"
else
enable_mremap="1"
fi
],
[enable_mremap="0"]
)
if test "x$enable_mremap" = "x1" ; then
JE_COMPILABLE([mremap(...MREMAP_FIXED...)], [
#define _GNU_SOURCE
#include <sys/mman.h>
], [
void *p = mremap((void *)0, 0, 0, MREMAP_MAYMOVE|MREMAP_FIXED, (void *)0);
], [je_cv_mremap_fixed])
if test "x${je_cv_mremap_fixed}" = "xno" ; then
enable_mremap="0"
fi
fi
if test "x$enable_mremap" = "x1" ; then
AC_DEFINE([JEMALLOC_MREMAP], [ ])
fi
AC_SUBST([enable_mremap])
dnl Enable VM deallocation via munmap() by default.
AC_ARG_ENABLE([munmap],
[AS_HELP_STRING([--disable-munmap], [Disable VM deallocation via munmap(2)])],
[if test "x$enable_munmap" = "xno" ; then
enable_munmap="0"
else
enable_munmap="1"
fi
],
[enable_munmap="${default_munmap}"]
)
if test "x$enable_munmap" = "x1" ; then
AC_DEFINE([JEMALLOC_MUNMAP], [ ])
fi
AC_SUBST([enable_munmap])
dnl Do not enable allocation from DSS by default.
AC_ARG_ENABLE([dss],
[AS_HELP_STRING([--enable-dss], [Enable allocation from DSS])],
[if test "x$enable_dss" = "xno" ; then
enable_dss="0"
else
enable_dss="1"
fi
],
[enable_dss="0"]
)
dnl Check whether the BSD/SUSv1 sbrk() exists. If not, disable DSS support.
AC_CHECK_FUNC([sbrk], [have_sbrk="1"], [have_sbrk="0"])
if test "x$have_sbrk" = "x1" ; then
AC_DEFINE([JEMALLOC_HAVE_SBRK], [ ])
else
enable_dss="0"
fi
if test "x$enable_dss" = "x1" ; then
AC_DEFINE([JEMALLOC_DSS], [ ])
fi
AC_SUBST([enable_dss])
dnl Support the junk/zero filling option by default.
AC_ARG_ENABLE([fill],
[AS_HELP_STRING([--disable-fill],
[Disable support for junk/zero filling, quarantine, and redzones])],
[if test "x$enable_fill" = "xno" ; then
enable_fill="0"
else
enable_fill="1"
fi
],
[enable_fill="1"]
)
if test "x$enable_fill" = "x1" ; then
AC_DEFINE([JEMALLOC_FILL], [ ])
fi
AC_SUBST([enable_fill])
dnl Disable utrace(2)-based tracing by default.
AC_ARG_ENABLE([utrace],
[AS_HELP_STRING([--enable-utrace], [Enable utrace(2)-based tracing])],
[if test "x$enable_utrace" = "xno" ; then
enable_utrace="0"
else
enable_utrace="1"
fi
],
[enable_utrace="0"]
)
JE_COMPILABLE([utrace(2)], [
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <sys/ktrace.h>
], [
utrace((void *)0, 0);
], [je_cv_utrace])
if test "x${je_cv_utrace}" = "xno" ; then
enable_utrace="0"
fi
if test "x$enable_utrace" = "x1" ; then
AC_DEFINE([JEMALLOC_UTRACE], [ ])
fi
AC_SUBST([enable_utrace])
dnl Support Valgrind by default.
AC_ARG_ENABLE([valgrind],
[AS_HELP_STRING([--disable-valgrind], [Disable support for Valgrind])],
[if test "x$enable_valgrind" = "xno" ; then
enable_valgrind="0"
else
enable_valgrind="1"
fi
],
[enable_valgrind="1"]
)
if test "x$enable_valgrind" = "x1" ; then
JE_COMPILABLE([valgrind], [
#include <valgrind/valgrind.h>
#include <valgrind/memcheck.h>
#if !defined(VALGRIND_RESIZEINPLACE_BLOCK)
# error "Incompatible Valgrind version"
#endif
], [], [je_cv_valgrind])
if test "x${je_cv_valgrind}" = "xno" ; then
enable_valgrind="0"
fi
if test "x$enable_valgrind" = "x1" ; then
AC_DEFINE([JEMALLOC_VALGRIND], [ ])
fi
fi
AC_SUBST([enable_valgrind])
dnl Do not support the xmalloc option by default.
AC_ARG_ENABLE([xmalloc],
[AS_HELP_STRING([--enable-xmalloc], [Support xmalloc option])],
[if test "x$enable_xmalloc" = "xno" ; then
enable_xmalloc="0"
else
enable_xmalloc="1"
fi
],
[enable_xmalloc="0"]
)
if test "x$enable_xmalloc" = "x1" ; then
AC_DEFINE([JEMALLOC_XMALLOC], [ ])
fi
AC_SUBST([enable_xmalloc])
AC_CACHE_CHECK([STATIC_PAGE_SHIFT],
[je_cv_static_page_shift],
AC_RUN_IFELSE([AC_LANG_PROGRAM(
[[
#include <strings.h>
#ifdef _WIN32
#include <windows.h>
#else
#include <unistd.h>
#endif
#include <stdio.h>
]],
[[
long result;
FILE *f;
#ifdef _WIN32
SYSTEM_INFO si;
GetSystemInfo(&si);
result = si.dwPageSize;
#else
result = sysconf(_SC_PAGESIZE);
#endif
if (result == -1) {
return 1;
}
result = ffsl(result) - 1;
f = fopen("conftest.out", "w");
if (f == NULL) {
return 1;
}
fprintf(f, "%u\n", result);
fclose(f);
return 0;
]])],
[je_cv_static_page_shift=`cat conftest.out`],
[je_cv_static_page_shift=undefined]))
if test "x$je_cv_static_page_shift" != "xundefined"; then
AC_DEFINE_UNQUOTED([STATIC_PAGE_SHIFT], [$je_cv_static_page_shift])
else
AC_MSG_ERROR([cannot determine value for STATIC_PAGE_SHIFT])
fi
dnl ============================================================================
dnl jemalloc configuration.
dnl
dnl Set VERSION if source directory has an embedded git repository.
if test -d "${srcroot}.git" ; then
git describe --long --abbrev=40 > ${srcroot}VERSION
fi
jemalloc_version=`cat ${srcroot}VERSION`
jemalloc_version_major=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]1}'`
jemalloc_version_minor=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]2}'`
jemalloc_version_bugfix=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]3}'`
jemalloc_version_nrev=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]4}'`
jemalloc_version_gid=`echo ${jemalloc_version} | tr ".g-" " " | awk '{print [$]5}'`
AC_SUBST([jemalloc_version])
AC_SUBST([jemalloc_version_major])
AC_SUBST([jemalloc_version_minor])
AC_SUBST([jemalloc_version_bugfix])
AC_SUBST([jemalloc_version_nrev])
AC_SUBST([jemalloc_version_gid])
dnl ============================================================================
dnl Configure pthreads.
if test "x$abi" != "xpecoff" ; then
AC_CHECK_HEADERS([pthread.h], , [AC_MSG_ERROR([pthread.h is missing])])
dnl Some systems may embed pthreads functionality in libc; check for libpthread
dnl first, but try libc too before failing.
AC_CHECK_LIB([pthread], [pthread_create], [LIBS="$LIBS -lpthread"],
[AC_SEARCH_LIBS([pthread_create], , ,
AC_MSG_ERROR([libpthread is missing]))])
fi
CPPFLAGS="$CPPFLAGS -D_REENTRANT"
dnl Check whether the BSD-specific _malloc_thread_cleanup() exists. If so, use
dnl it rather than pthreads TSD cleanup functions to support cleanup during
dnl thread exit, in order to avoid pthreads library recursion during
dnl bootstrapping.
AC_CHECK_FUNC([_malloc_thread_cleanup],
[have__malloc_thread_cleanup="1"],
[have__malloc_thread_cleanup="0"]
)
if test "x$have__malloc_thread_cleanup" = "x1" ; then
AC_DEFINE([JEMALLOC_MALLOC_THREAD_CLEANUP], [ ])
force_tls="1"
fi
dnl Check whether the BSD-specific _pthread_mutex_init_calloc_cb() exists. If
dnl so, mutex initialization causes allocation, and we need to implement this
dnl callback function in order to prevent recursive allocation.
AC_CHECK_FUNC([_pthread_mutex_init_calloc_cb],
[have__pthread_mutex_init_calloc_cb="1"],
[have__pthread_mutex_init_calloc_cb="0"]
)
if test "x$have__pthread_mutex_init_calloc_cb" = "x1" ; then
AC_DEFINE([JEMALLOC_MUTEX_INIT_CB])
fi