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configure.ac
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##------------------------------------------------------------##
#
# The multiple-architecture stuff in this file is pretty
# cryptic. Read docs/internals/multiple-architectures.txt
# for at least a partial explanation of what is going on.
#
##------------------------------------------------------------##
# Process this file with autoconf to produce a configure script.
AC_INIT([Valgrind],[3.15.0.GIT],[valgrind-users@lists.sourceforge.net])
AC_CONFIG_SRCDIR(coregrind/m_main.c)
AC_CONFIG_HEADERS([config.h])
AM_INIT_AUTOMAKE([foreign subdir-objects])
AM_MAINTAINER_MODE
#----------------------------------------------------------------------------
# Do NOT modify these flags here. Except in feature tests in which case
# the original values must be properly restored.
#----------------------------------------------------------------------------
CFLAGS="$CFLAGS"
CXXFLAGS="$CXXFLAGS"
#----------------------------------------------------------------------------
# Checks for various programs.
#----------------------------------------------------------------------------
AC_PROG_LN_S
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_CPP
AC_PROG_CXX
# AC_PROG_OBJC apparently causes problems on older Linux distros (eg. with
# autoconf 2.59). If we ever have any Objective-C code in the Valgrind code
# base (eg. most likely as Darwin-specific tests) we'll need one of the
# following:
# - put AC_PROG_OBJC in a Darwin-specific part of this file
# - Use AC_PROG_OBJC here and up the minimum autoconf version
# - Use the following, which is apparently equivalent:
# m4_ifdef([AC_PROG_OBJC],
# [AC_PROG_OBJC],
# [AC_CHECK_TOOL([OBJC], [gcc])
# AC_SUBST([OBJC])
# AC_SUBST([OBJCFLAGS])
# ])
AC_PROG_RANLIB
AC_PROG_EGREP
# Set LTO_RANLIB variable to an lto enabled ranlib
if test "x$LTO_RANLIB" = "x"; then
AC_PATH_PROGS([LTO_RANLIB], [gcc-ranlib])
fi
AC_ARG_VAR([LTO_RANLIB],[Library indexer command for link time optimisation])
# provide a very basic definition for AC_PROG_SED if it's not provided by
# autoconf (as e.g. in autoconf 2.59).
m4_ifndef([AC_PROG_SED],
[AC_DEFUN([AC_PROG_SED],
[AC_ARG_VAR([SED])
AC_CHECK_PROGS([SED],[gsed sed])])])
AC_PROG_SED
# If no AR variable was specified, look up the name of the archiver. Otherwise
# do not touch the AR variable.
if test "x$AR" = "x"; then
AC_PATH_PROGS([AR], [`echo $LD | $SED 's/ld$/ar/'` "ar"], [ar])
fi
AC_ARG_VAR([AR],[Archiver command])
# same for LTO_AR variable for lto enabled archiver
if test "x$LTO_AR" = "x"; then
AC_PATH_PROGS([LTO_AR], [gcc-ar])
fi
AC_ARG_VAR([LTO_AR],[Archiver command for link time optimisation])
# Check for the compiler support
if test "${GCC}" != "yes" ; then
AC_MSG_ERROR([Valgrind relies on GCC to be compiled])
fi
# figure out where perl lives
AC_PATH_PROG(PERL, perl)
# figure out where gdb lives
AC_PATH_PROG(GDB, gdb, "/no/gdb/was/found/at/configure/time")
AC_DEFINE_UNQUOTED(GDB_PATH, "$GDB", [path to GDB])
# some older automake's don't have it so try something on our own
ifdef([AM_PROG_AS],[AM_PROG_AS],
[
AS="${CC}"
AC_SUBST(AS)
ASFLAGS=""
AC_SUBST(ASFLAGS)
])
# Check if 'diff' supports -u (universal diffs) and use it if possible.
AC_MSG_CHECKING([for diff -u])
AC_SUBST(DIFF)
# Comparing two identical files results in 0.
tmpfile="tmp-xxx-yyy-zzz"
touch $tmpfile;
if diff -u $tmpfile $tmpfile ; then
AC_MSG_RESULT([yes])
DIFF="diff -u"
else
AC_MSG_RESULT([no])
DIFF="diff"
fi
rm $tmpfile
# Make sure we can compile in C99 mode.
AC_PROG_CC_C99
if test "$ac_cv_prog_cc_c99" == "no"; then
AC_MSG_ERROR([Valgrind relies on a C compiler supporting C99])
fi
# We don't want gcc < 3.0
AC_MSG_CHECKING([for a supported version of gcc])
# Obtain the compiler version.
#
# A few examples of how the ${CC} --version output looks like:
#
# ######## gcc variants ########
# Arch Linux: i686-pc-linux-gnu-gcc (GCC) 4.6.2
# Debian Linux: gcc (Debian 4.3.2-1.1) 4.3.2
# openSUSE: gcc (SUSE Linux) 4.5.1 20101208 [gcc-4_5-branch revision 167585]
# Exherbo Linux: x86_64-pc-linux-gnu-gcc (Exherbo gcc-4.6.2) 4.6.2
# MontaVista Linux for ARM: arm-none-linux-gnueabi-gcc (Sourcery G++ Lite 2009q1-203) 4.3.3
# OS/X 10.6: i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
# OS/X 10.7: i686-apple-darwin11-llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)
#
# ######## clang variants ########
# Clang: clang version 2.9 (tags/RELEASE_29/final)
# Apple clang: Apple clang version 3.1 (tags/Apple/clang-318.0.58) (based on LLVM 3.1svn)
# Dragonfly clang: Dragonfly clang version 3.1 (branches/release_31 156863) 20120523
#
# ######## Apple LLVM variants ########
# Apple LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)
# Apple LLVM version 6.0 (clang-600.0.51) (based on LLVM 3.5svn)
#
[
if test "x`${CC} --version | $SED -n -e 's/.*\Apple \(LLVM\) version.*clang.*/\1/p'`" = "xLLVM" ;
then
is_clang="applellvm"
gcc_version=`${CC} --version | $SED -n -e 's/.*LLVM version \([0-9.]*\).*$/\1/p'`
elif test "x`${CC} --version | $SED -n -e 's/.*\(clang\) version.*/\1/p'`" = "xclang" ;
then
is_clang="clang"
# Don't use -dumpversion with clang: it will always produce "4.2.1".
gcc_version=`${CC} --version | $SED -n -e 's/.*clang version \([0-9.]*\).*$/\1/p'`
elif test "x`${CC} --version | $SED -n -e 's/icc.*\(ICC\).*/\1/p'`" = "xICC" ;
then
is_clang="icc"
gcc_version=`${CC} -dumpversion 2>/dev/null`
else
is_clang="notclang"
gcc_version=`${CC} -dumpversion 2>/dev/null`
if test "x$gcc_version" = x; then
gcc_version=`${CC} --version | $SED -n -e 's/[^ ]*gcc[^ ]* ([^)]*) \([0-9.]*\).*$/\1/p'`
fi
fi
]
AM_CONDITIONAL(COMPILER_IS_CLANG, test $is_clang = clang -o $is_clang = applellvm)
AM_CONDITIONAL(COMPILER_IS_ICC, test $is_clang = icc)
# Note: m4 arguments are quoted with [ and ] so square brackets in shell
# statements have to be quoted.
case "${is_clang}-${gcc_version}" in
applellvm-5.1|applellvm-[[6-9]].*|applellvm-[[1-9][0-9]]*)
AC_MSG_RESULT([ok (Apple LLVM version ${gcc_version})])
;;
icc-1[[3-9]].*)
AC_MSG_RESULT([ok (ICC version ${gcc_version})])
;;
notclang-[[3-9]]|notclang-[[3-9]].*|notclang-[[1-9][0-9]]*)
AC_MSG_RESULT([ok (${gcc_version})])
;;
clang-2.9|clang-[[3-9]].*|clang-[[1-9][0-9]]*)
AC_MSG_RESULT([ok (clang-${gcc_version})])
;;
*)
AC_MSG_RESULT([no (${is_clang}-${gcc_version})])
AC_MSG_ERROR([please use gcc >= 3.0 or clang >= 2.9 or icc >= 13.0 or Apple LLVM >= 5.1])
;;
esac
#----------------------------------------------------------------------------
# Arch/OS/platform tests.
#----------------------------------------------------------------------------
# We create a number of arch/OS/platform-related variables. We prefix them
# all with "VGCONF_" which indicates that they are defined at
# configure-time, and distinguishes them from the VGA_*/VGO_*/VGP_*
# variables used when compiling C files.
AC_CANONICAL_HOST
AC_MSG_CHECKING([for a supported CPU])
# ARCH_MAX reflects the most that this CPU can do: for example if it
# is a 64-bit capable PowerPC, then it must be set to ppc64 and not ppc32.
# Ditto for amd64. It is used for more configuration below, but is not used
# outside this file.
#
# Power PC returns powerpc for Big Endian. This was not changed when Little
# Endian support was added to the 64-bit architecture. The 64-bit Little
# Endian systems explicitly state le in the host_cpu. For clarity in the
# Valgrind code, the ARCH_MAX name will state LE or BE for the endianness of
# the 64-bit system. Big Endian is the only mode supported on 32-bit Power PC.
# The abreviation PPC or ppc refers to 32-bit and 64-bit systems with either
# Endianness. The name PPC64 or ppc64 to 64-bit systems of either Endianness.
# The names ppc64be or PPC64BE refer to only 64-bit systems that are Big
# Endian. Similarly, ppc64le or PPC64LE refer to only 64-bit systems that are
# Little Endian.
case "${host_cpu}" in
i?86)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="x86"
;;
x86_64|amd64)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="amd64"
;;
powerpc64)
# this only referrs to 64-bit Big Endian
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="ppc64be"
;;
powerpc64le)
# this only referrs to 64-bit Little Endian
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="ppc64le"
;;
powerpc)
# On Linux this means only a 32-bit capable CPU.
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="ppc32"
;;
s390x)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="s390x"
;;
armv7*)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="arm"
;;
aarch64*)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="arm64"
;;
mips)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="mips32"
;;
mipsel)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="mips32"
;;
mipsisa32r2)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="mips32"
;;
mips64*)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="mips64"
;;
mipsisa64*)
AC_MSG_RESULT([ok (${host_cpu})])
ARCH_MAX="mips64"
;;
*)
AC_MSG_RESULT([no (${host_cpu})])
AC_MSG_ERROR([Unsupported host architecture. Sorry])
;;
esac
#----------------------------------------------------------------------------
# Sometimes it's convenient to subvert the bi-arch build system and
# just have a single build even though the underlying platform is
# capable of both. Hence handle --enable-only64bit and
# --enable-only32bit. Complain if both are issued :-)
# [Actually, if either of these options are used, I think both get built,
# but only one gets installed. So if you use an in-place build, both can be
# used. --njn]
# Check if a 64-bit only build has been requested
AC_CACHE_CHECK([for a 64-bit only build], vg_cv_only64bit,
[AC_ARG_ENABLE(only64bit,
[ --enable-only64bit do a 64-bit only build],
[vg_cv_only64bit=$enableval],
[vg_cv_only64bit=no])])
# Check if a 32-bit only build has been requested
AC_CACHE_CHECK([for a 32-bit only build], vg_cv_only32bit,
[AC_ARG_ENABLE(only32bit,
[ --enable-only32bit do a 32-bit only build],
[vg_cv_only32bit=$enableval],
[vg_cv_only32bit=no])])
# Stay sane
if test x$vg_cv_only64bit = xyes -a x$vg_cv_only32bit = xyes; then
AC_MSG_ERROR(
[Nonsensical: both --enable-only64bit and --enable-only32bit.])
fi
#----------------------------------------------------------------------------
# VGCONF_OS is the primary build OS, eg. "linux". It is passed in to
# compilation of many C files via -VGO_$(VGCONF_OS) and
# -VGP_$(VGCONF_ARCH_PRI)_$(VGCONF_OS).
AC_MSG_CHECKING([for a supported OS])
AC_SUBST(VGCONF_OS)
DEFAULT_SUPP=""
case "${host_os}" in
*linux*)
AC_MSG_RESULT([ok (${host_os})])
VGCONF_OS="linux"
# Ok, this is linux. Check the kernel version
AC_MSG_CHECKING([for the kernel version])
kernel=`uname -r`
case "${kernel}" in
0.*|1.*|2.0.*|2.1.*|2.2.*|2.3.*|2.4.*|2.5.*)
AC_MSG_RESULT([unsupported (${kernel})])
AC_MSG_ERROR([Valgrind needs a Linux kernel >= 2.6])
;;
*)
AC_MSG_RESULT([2.6 or later (${kernel})])
;;
esac
;;
*dragonfly*)
AC_MSG_RESULT([ok (${host_os})])
VGCONF_OS="dragonfly"
DEFAULT_SUPP="dragonfly.supp ${DEFAULT_SUPP}"
;;
*darwin*)
AC_MSG_RESULT([ok (${host_os})])
VGCONF_OS="darwin"
AC_DEFINE([DARWIN_10_5], 100500, [DARWIN_VERS value for Mac OS X 10.5])
AC_DEFINE([DARWIN_10_6], 100600, [DARWIN_VERS value for Mac OS X 10.6])
AC_DEFINE([DARWIN_10_7], 100700, [DARWIN_VERS value for Mac OS X 10.7])
AC_DEFINE([DARWIN_10_8], 100800, [DARWIN_VERS value for Mac OS X 10.8])
AC_DEFINE([DARWIN_10_9], 100900, [DARWIN_VERS value for Mac OS X 10.9])
AC_DEFINE([DARWIN_10_10], 101000, [DARWIN_VERS value for Mac OS X 10.10])
AC_DEFINE([DARWIN_10_11], 101100, [DARWIN_VERS value for Mac OS X 10.11])
AC_DEFINE([DARWIN_10_12], 101200, [DARWIN_VERS value for macOS 10.12])
AC_DEFINE([DARWIN_10_13], 101300, [DARWIN_VERS value for macOS 10.13])
AC_MSG_CHECKING([for the kernel version])
kernel=`uname -r`
# Nb: for Darwin we set DEFAULT_SUPP here. That's because Darwin
# has only one relevant version, the OS version. The `uname` check
# is a good way to get that version (i.e. "Darwin 9.6.0" is Mac OS
# X 10.5.6, and "Darwin 10.x" is Mac OS X 10.6.x Snow Leopard,
# and possibly "Darwin 11.x" is Mac OS X 10.7.x Lion),
# and we don't know of an macros similar to __GLIBC__ to get that info.
#
# XXX: `uname -r` won't do the right thing for cross-compiles, but
# that's not a problem yet.
#
# jseward 21 Sept 2011: I seriously doubt whether V 3.7.0 will work
# on OS X 10.5.x; I haven't tested yet, and only plan to test 3.7.0
# on 10.6.8 and 10.7.1. Although tempted to delete the configure
# time support for 10.5 (the 9.* pattern just below), I'll leave it
# in for now, just in case anybody wants to give it a try. But I'm
# assuming that 3.7.0 is a Snow Leopard and Lion-only release.
case "${kernel}" in
9.*)
AC_MSG_RESULT([Darwin 9.x (${kernel}) / Mac OS X 10.5 Leopard])
AC_DEFINE([DARWIN_VERS], DARWIN_10_5, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin9.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin9-drd.supp ${DEFAULT_SUPP}"
;;
10.*)
AC_MSG_RESULT([Darwin 10.x (${kernel}) / Mac OS X 10.6 Snow Leopard])
AC_DEFINE([DARWIN_VERS], DARWIN_10_6, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin10.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
11.*)
AC_MSG_RESULT([Darwin 11.x (${kernel}) / Mac OS X 10.7 Lion])
AC_DEFINE([DARWIN_VERS], DARWIN_10_7, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin11.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
12.*)
AC_MSG_RESULT([Darwin 12.x (${kernel}) / Mac OS X 10.8 Mountain Lion])
AC_DEFINE([DARWIN_VERS], DARWIN_10_8, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin12.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
13.*)
AC_MSG_RESULT([Darwin 13.x (${kernel}) / Mac OS X 10.9 Mavericks])
AC_DEFINE([DARWIN_VERS], DARWIN_10_9, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin13.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
14.*)
AC_MSG_RESULT([Darwin 14.x (${kernel}) / Mac OS X 10.10 Yosemite])
AC_DEFINE([DARWIN_VERS], DARWIN_10_10, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin14.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
15.*)
AC_MSG_RESULT([Darwin 15.x (${kernel}) / Mac OS X 10.11 El Capitan])
AC_DEFINE([DARWIN_VERS], DARWIN_10_11, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin15.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
16.*)
AC_MSG_RESULT([Darwin 16.x (${kernel}) / macOS 10.12 Sierra])
AC_DEFINE([DARWIN_VERS], DARWIN_10_12, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin16.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
17.*)
AC_MSG_RESULT([Darwin 17.x (${kernel}) / macOS 10.13 High Sierra])
AC_DEFINE([DARWIN_VERS], DARWIN_10_13, [Darwin / Mac OS X version])
DEFAULT_SUPP="darwin17.supp ${DEFAULT_SUPP}"
DEFAULT_SUPP="darwin10-drd.supp ${DEFAULT_SUPP}"
;;
*)
AC_MSG_RESULT([unsupported (${kernel})])
AC_MSG_ERROR([Valgrind works on Darwin 10.x, 11.x, 12.x, 13.x, 14.x, 15.x, 16.x and 17.x (Mac OS X 10.6/7/8/9/10/11 and macOS 10.12/13)])
;;
esac
;;
solaris2.11*)
AC_MSG_RESULT([ok (${host_os})])
VGCONF_OS="solaris"
uname_v=$( uname -v )
case "$uname_v" in
11.4.*)
DEFAULT_SUPP="solaris12.supp ${DEFAULT_SUPP}"
;;
*)
DEFAULT_SUPP="solaris11.supp ${DEFAULT_SUPP}"
;;
esac
;;
solaris2.12*)
AC_MSG_RESULT([ok (${host_os})])
VGCONF_OS="solaris"
DEFAULT_SUPP="solaris12.supp ${DEFAULT_SUPP}"
;;
*)
AC_MSG_RESULT([no (${host_os})])
AC_MSG_ERROR([Valgrind is operating system specific. Sorry.])
;;
esac
#----------------------------------------------------------------------------
# If we are building on a 64 bit platform test to see if the system
# supports building 32 bit programs and disable 32 bit support if it
# does not support building 32 bit programs
case "$ARCH_MAX-$VGCONF_OS" in
amd64-linux|ppc64be-linux|arm64-linux|amd64-solaris)
AC_MSG_CHECKING([for 32 bit build support])
safe_CFLAGS=$CFLAGS
CFLAGS="-m32"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[
return 0;
]])], [
AC_MSG_RESULT([yes])
], [
vg_cv_only64bit="yes"
AC_MSG_RESULT([no])
])
CFLAGS=$safe_CFLAGS;;
mips64-linux)
AC_MSG_CHECKING([for 32 bit build support])
safe_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -mips32 -mabi=32"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <sys/prctl.h>
]], [[]])], [
AC_MSG_RESULT([yes])
], [
vg_cv_only64bit="yes"
AC_MSG_RESULT([no])
])
CFLAGS=$safe_CFLAGS;;
esac
if test x$vg_cv_only64bit = xyes -a x$vg_cv_only32bit = xyes; then
AC_MSG_ERROR(
[--enable-only32bit was specified but system does not support 32 bit builds])
fi
#----------------------------------------------------------------------------
# VGCONF_ARCH_PRI is the arch for the primary build target, eg. "amd64". By
# default it's the same as ARCH_MAX. But if, say, we do a build on an amd64
# machine, but --enable-only32bit has been requested, then ARCH_MAX (see
# above) will be "amd64" since that reflects the most that this cpu can do,
# but VGCONF_ARCH_PRI will be downgraded to "x86", since that reflects the
# arch corresponding to the primary build (VGCONF_PLATFORM_PRI_CAPS). It is
# passed in to compilation of many C files via -VGA_$(VGCONF_ARCH_PRI) and
# -VGP_$(VGCONF_ARCH_PRI)_$(VGCONF_OS).
AC_SUBST(VGCONF_ARCH_PRI)
# VGCONF_ARCH_SEC is the arch for the secondary build target, eg. "x86".
# It is passed in to compilation of many C files via -VGA_$(VGCONF_ARCH_SEC)
# and -VGP_$(VGCONF_ARCH_SEC)_$(VGCONF_OS), if there is a secondary target.
# It is empty if there is no secondary target.
AC_SUBST(VGCONF_ARCH_SEC)
# VGCONF_PLATFORM_PRI_CAPS is the primary build target, eg. "AMD64_LINUX".
# The entire system, including regression and performance tests, will be
# built for this target. The "_CAPS" indicates that the name is in capital
# letters, and it also uses '_' rather than '-' as a separator, because it's
# used to create various Makefile variables, which are all in caps by
# convention and cannot contain '-' characters. This is in contrast to
# VGCONF_ARCH_PRI and VGCONF_OS which are not in caps.
AC_SUBST(VGCONF_PLATFORM_PRI_CAPS)
# VGCONF_PLATFORM_SEC_CAPS is the secondary build target, if there is one.
# Valgrind and tools will also be built for this target, but not the
# regression or performance tests.
#
# By default, the primary arch is the same as the "max" arch, as commented
# above (at the definition of ARCH_MAX). We may choose to downgrade it in
# the big case statement just below here, in the case where we're building
# on a 64 bit machine but have been requested only to do a 32 bit build.
AC_SUBST(VGCONF_PLATFORM_SEC_CAPS)
AC_MSG_CHECKING([for a supported CPU/OS combination])
# NB. The load address for a given platform may be specified in more
# than one place, in some cases, depending on whether we're doing a biarch,
# 32-bit only or 64-bit only build. eg see case for amd64-linux below.
# Be careful to give consistent values in all subcases. Also, all four
# valt_load_addres_{pri,sec}_{norml,inner} values must always be set,
# even if it is to "0xUNSET".
#
case "$ARCH_MAX-$VGCONF_OS" in
x86-linux)
VGCONF_ARCH_PRI="x86"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="X86_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
amd64-linux)
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
if test x$vg_cv_only64bit = xyes; then
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="AMD64_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
elif test x$vg_cv_only32bit = xyes; then
VGCONF_ARCH_PRI="x86"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="X86_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
else
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC="x86"
VGCONF_PLATFORM_PRI_CAPS="AMD64_LINUX"
VGCONF_PLATFORM_SEC_CAPS="X86_LINUX"
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0x58000000"
valt_load_address_sec_inner="0x38000000"
fi
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
ppc32-linux)
VGCONF_ARCH_PRI="ppc32"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="PPC32_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
ppc64be-linux)
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
if test x$vg_cv_only64bit = xyes; then
VGCONF_ARCH_PRI="ppc64be"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="PPC64BE_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
elif test x$vg_cv_only32bit = xyes; then
VGCONF_ARCH_PRI="ppc32"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="PPC32_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
else
VGCONF_ARCH_PRI="ppc64be"
VGCONF_ARCH_SEC="ppc32"
VGCONF_PLATFORM_PRI_CAPS="PPC64BE_LINUX"
VGCONF_PLATFORM_SEC_CAPS="PPC32_LINUX"
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0x58000000"
valt_load_address_sec_inner="0x38000000"
fi
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
ppc64le-linux)
# Little Endian is only supported on PPC64
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
VGCONF_ARCH_PRI="ppc64le"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="PPC64LE_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
x86-dragonfly)
AC_MSG_ERROR([dragonfly only supports the amd64 architecture])
;;
amd64-dragonfly)
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="AMD64_DRAGONFLY"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x38000000"
valt_load_address_pri_inner="0x28000000"
valt_load_address_sec_norml="0x38000000"
valt_load_address_sec_inner="0x28000000"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
# Darwin gets identified as 32-bit even when it supports 64-bit.
# (Not sure why, possibly because 'uname' returns "i386"?) Just about
# all Macs support both 32-bit and 64-bit, so we just build both. If
# someone has a really old 32-bit only machine they can (hopefully?)
# build with --enable-only32bit. See bug 243362.
x86-darwin|amd64-darwin)
ARCH_MAX="amd64"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
if test x$vg_cv_only64bit = xyes; then
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="AMD64_DARWIN"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x158000000"
valt_load_address_pri_inner="0x138000000"
elif test x$vg_cv_only32bit = xyes; then
VGCONF_ARCH_PRI="x86"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="X86_DARWIN"
VGCONF_PLATFORM_SEC_CAPS=""
VGCONF_ARCH_PRI_CAPS="x86"
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
else
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC="x86"
VGCONF_PLATFORM_PRI_CAPS="AMD64_DARWIN"
VGCONF_PLATFORM_SEC_CAPS="X86_DARWIN"
valt_load_address_pri_norml="0x158000000"
valt_load_address_pri_inner="0x138000000"
valt_load_address_sec_norml="0x58000000"
valt_load_address_sec_inner="0x38000000"
fi
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
arm-linux)
VGCONF_ARCH_PRI="arm"
VGCONF_PLATFORM_PRI_CAPS="ARM_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([ok (${host_cpu}-${host_os})])
;;
arm64-linux)
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
if test x$vg_cv_only64bit = xyes; then
VGCONF_ARCH_PRI="arm64"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="ARM64_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
elif test x$vg_cv_only32bit = xyes; then
VGCONF_ARCH_PRI="arm"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="ARM_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
else
VGCONF_ARCH_PRI="arm64"
VGCONF_ARCH_SEC="arm"
VGCONF_PLATFORM_PRI_CAPS="ARM64_LINUX"
VGCONF_PLATFORM_SEC_CAPS="ARM_LINUX"
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0x58000000"
valt_load_address_sec_inner="0x38000000"
fi
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
s390x-linux)
VGCONF_ARCH_PRI="s390x"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="S390X_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
# To improve branch prediction hit rate we want to have
# the generated code close to valgrind (host) code
valt_load_address_pri_norml="0x800000000"
valt_load_address_pri_inner="0x810000000"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
mips32-linux)
VGCONF_ARCH_PRI="mips32"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="MIPS32_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
mips64-linux)
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
if test x$vg_cv_only64bit = xyes; then
VGCONF_ARCH_PRI="mips64"
VGCONF_PLATFORM_SEC_CAPS=""
VGCONF_PLATFORM_PRI_CAPS="MIPS64_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
elif test x$vg_cv_only32bit = xyes; then
VGCONF_ARCH_PRI="mips32"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="MIPS32_LINUX"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
else
VGCONF_ARCH_PRI="mips64"
VGCONF_ARCH_SEC="mips32"
VGCONF_PLATFORM_PRI_CAPS="MIPS64_LINUX"
VGCONF_PLATFORM_SEC_CAPS="MIPS32_LINUX"
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0x58000000"
valt_load_address_sec_inner="0x38000000"
fi
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
x86-solaris)
VGCONF_ARCH_PRI="x86"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="X86_SOLARIS"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
amd64-solaris)
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
if test x$vg_cv_only64bit = xyes; then
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="AMD64_SOLARIS"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
elif test x$vg_cv_only32bit = xyes; then
VGCONF_ARCH_PRI="x86"
VGCONF_ARCH_SEC=""
VGCONF_PLATFORM_PRI_CAPS="X86_SOLARIS"
VGCONF_PLATFORM_SEC_CAPS=""
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
else
VGCONF_ARCH_PRI="amd64"
VGCONF_ARCH_SEC="x86"
VGCONF_PLATFORM_PRI_CAPS="AMD64_SOLARIS"
VGCONF_PLATFORM_SEC_CAPS="X86_SOLARIS"
valt_load_address_pri_norml="0x58000000"
valt_load_address_pri_inner="0x38000000"
valt_load_address_sec_norml="0x58000000"
valt_load_address_sec_inner="0x38000000"
fi
AC_MSG_RESULT([ok (${ARCH_MAX}-${VGCONF_OS})])
;;
*)
VGCONF_ARCH_PRI="unknown"
VGCONF_ARCH_SEC="unknown"
VGCONF_PLATFORM_PRI_CAPS="UNKNOWN"
VGCONF_PLATFORM_SEC_CAPS="UNKNOWN"
valt_load_address_pri_norml="0xUNSET"
valt_load_address_pri_inner="0xUNSET"
valt_load_address_sec_norml="0xUNSET"
valt_load_address_sec_inner="0xUNSET"
AC_MSG_RESULT([no (${ARCH_MAX}-${VGCONF_OS})])
AC_MSG_ERROR([Valgrind is platform specific. Sorry. Please consider doing a port.])
;;
esac
#----------------------------------------------------------------------------
# Set up VGCONF_ARCHS_INCLUDE_<arch>. Either one or two of these become
# defined.
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_X86,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xX86_DRAGONFLY \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_DRAGONFLY \
-o x$VGCONF_PLATFORM_PRI_CAPS = xX86_DARWIN \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_DARWIN \
-o x$VGCONF_PLATFORM_PRI_CAPS = xX86_SOLARIS \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_SOLARIS )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_AMD64,
test x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_DRAGONFLY \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_DARWIN \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_SOLARIS )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_PPC32,
test x$VGCONF_PLATFORM_PRI_CAPS = xPPC32_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xPPC32_LINUX )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_PPC64,
test x$VGCONF_PLATFORM_PRI_CAPS = xPPC64BE_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xPPC64LE_LINUX )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_ARM,
test x$VGCONF_PLATFORM_PRI_CAPS = xARM_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xARM_LINUX )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_ARM64,
test x$VGCONF_PLATFORM_PRI_CAPS = xARM64_LINUX )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_S390X,
test x$VGCONF_PLATFORM_PRI_CAPS = xS390X_LINUX )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_MIPS32,
test x$VGCONF_PLATFORM_PRI_CAPS = xMIPS32_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xMIPS32_LINUX )
AM_CONDITIONAL(VGCONF_ARCHS_INCLUDE_MIPS64,
test x$VGCONF_PLATFORM_PRI_CAPS = xMIPS64_LINUX )
# Set up VGCONF_PLATFORMS_INCLUDE_<platform>. Either one or two of these
# become defined.
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_X86_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_AMD64_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_PPC32_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xPPC32_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xPPC32_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_PPC64BE_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xPPC64BE_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_PPC64LE_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xPPC64LE_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_ARM_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xARM_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xARM_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_ARM64_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xARM64_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_S390X_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xS390X_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xS390X_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_MIPS32_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xMIPS32_LINUX \
-o x$VGCONF_PLATFORM_SEC_CAPS = xMIPS32_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_MIPS64_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xMIPS64_LINUX)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_X86_DRAGONFLY,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_DRAGONFLY \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_DRAGONFLY)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_AMD64_DRAGONFLY,
test x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_DRAGONFLY)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_X86_DARWIN,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_DARWIN \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_DARWIN)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_AMD64_DARWIN,
test x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_DARWIN)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_X86_SOLARIS,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_SOLARIS \
-o x$VGCONF_PLATFORM_SEC_CAPS = xX86_SOLARIS)
AM_CONDITIONAL(VGCONF_PLATFORMS_INCLUDE_AMD64_SOLARIS,
test x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_SOLARIS)
# Similarly, set up VGCONF_OS_IS_<os>. Exactly one of these becomes defined.
# Relies on the assumption that the primary and secondary targets are
# for the same OS, so therefore only necessary to test the primary.
AM_CONDITIONAL(VGCONF_OS_IS_LINUX,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xPPC32_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xPPC64BE_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xPPC64LE_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xARM_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xARM64_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xS390X_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xMIPS32_LINUX \
-o x$VGCONF_PLATFORM_PRI_CAPS = xMIPS64_LINUX)
AM_CONDITIONAL(VGCONF_OS_IS_DRAGONFLY,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_DRAGONFLY \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_DRAGONFLY \
-o x$VGCONF_PLATFORM_PRI_CAPS = xPPC32_DRAGONFLY \
-o x$VGCONF_PLATFORM_PRI_CAPS = xPPC64_DRAGONFLY)
AM_CONDITIONAL(VGCONF_OS_IS_DARWIN,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_DARWIN \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_DARWIN)
AM_CONDITIONAL(VGCONF_OS_IS_SOLARIS,
test x$VGCONF_PLATFORM_PRI_CAPS = xX86_SOLARIS \
-o x$VGCONF_PLATFORM_PRI_CAPS = xAMD64_SOLARIS)
# Sometimes, in the Makefile.am files, it's useful to know whether or not
# there is a secondary target.
AM_CONDITIONAL(VGCONF_HAVE_PLATFORM_SEC,
test x$VGCONF_PLATFORM_SEC_CAPS != x)
dnl automake-1.10 does not have AM_COND_IF (added in 1.11), so we supply a
dnl fallback definition
dnl The macro is courtesy of Dave Hart:
dnl https://lists.gnu.org/archive/html/automake/2010-12/msg00045.html
m4_ifndef([AM_COND_IF], [AC_DEFUN([AM_COND_IF], [
if test -z "$$1_TRUE"; then :
m4_n([$2])[]dnl
m4_ifval([$3],
[else
$3
])dnl
fi[]dnl
])])
#----------------------------------------------------------------------------
# Inner Valgrind?
#----------------------------------------------------------------------------
# Check if this should be built as an inner Valgrind, to be run within
# another Valgrind. Choose the load address accordingly.
AC_SUBST(VALT_LOAD_ADDRESS_PRI)
AC_SUBST(VALT_LOAD_ADDRESS_SEC)
AC_CACHE_CHECK([for use as an inner Valgrind], vg_cv_inner,
[AC_ARG_ENABLE(inner,
[ --enable-inner enables self-hosting],