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111
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1 # -*- Autoconf -*-
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2 # Process this file with autoconf to produce a configure script.
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3
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4 AC_INIT(package-unused, version-unused, libsanitizer)
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5 AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
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6
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7 AM_ENABLE_MULTILIB(, ..)
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8
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9 AC_MSG_CHECKING([for --enable-version-specific-runtime-libs])
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10 AC_ARG_ENABLE(version-specific-runtime-libs,
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11 [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ],
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12 [case "$enableval" in
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13 yes) version_specific_libs=yes ;;
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14 no) version_specific_libs=no ;;
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15 *) AC_MSG_ERROR([Unknown argument to enable/disable version-specific libs]);;
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16 esac],
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17 [version_specific_libs=no])
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18 AC_MSG_RESULT($version_specific_libs)
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19
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20 AC_USE_SYSTEM_EXTENSIONS
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21
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22 # Do not delete or change the following two lines. For why, see
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23 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
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24 AC_CANONICAL_SYSTEM
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25 target_alias=${target_alias-$host_alias}
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26 AC_SUBST(target_alias)
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27 GCC_LIBSTDCXX_RAW_CXX_FLAGS
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28
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29 AM_INIT_AUTOMAKE(foreign no-dist)
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30 AM_MAINTAINER_MODE
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31
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145
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32 GCC_WITH_TOOLEXECLIBDIR
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33
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111
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34 # Calculate toolexeclibdir
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35 # Also toolexecdir, though it's only used in toolexeclibdir
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36 case ${version_specific_libs} in
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37 yes)
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38 # Need the gcc compiler version to know where to install libraries
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39 # and header files if --enable-version-specific-runtime-libs option
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40 # is selected.
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41 toolexecdir='$(libdir)/gcc/$(target_alias)'
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42 toolexeclibdir='$(toolexecdir)/$(gcc_version)$(MULTISUBDIR)'
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43 ;;
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44 no)
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45 if test -n "$with_cross_host" &&
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46 test x"$with_cross_host" != x"no"; then
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47 # Install a library built with a cross compiler in tooldir, not libdir.
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48 toolexecdir='$(exec_prefix)/$(target_alias)'
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145
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49 case ${with_toolexeclibdir} in
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50 no)
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51 toolexeclibdir='$(toolexecdir)/lib'
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52 ;;
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53 *)
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54 toolexeclibdir=${with_toolexeclibdir}
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55 ;;
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56 esac
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111
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57 else
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58 toolexecdir='$(libdir)/gcc-lib/$(target_alias)'
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59 toolexeclibdir='$(libdir)'
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60 fi
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61 multi_os_directory=`$CC -print-multi-os-directory`
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62 case $multi_os_directory in
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63 .) ;; # Avoid trailing /.
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64 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
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65 esac
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66 ;;
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67 esac
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68 AC_SUBST(toolexecdir)
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69 AC_SUBST(toolexeclibdir)
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70
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71 # Checks for programs.
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72 AC_PROG_CC
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73 AC_PROG_CXX
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74 AM_PROG_AS
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75 AC_PROG_RANLIB
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76
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77 AC_LIBTOOL_DLOPEN
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78 AM_PROG_LIBTOOL
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79
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80 AC_PROG_AWK
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81 case "$AWK" in
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82 "") AC_MSG_ERROR([can't build without awk]) ;;
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83 esac
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84
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85 AC_SUBST(enable_shared)
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86 AC_SUBST(enable_static)
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87
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88 AC_CHECK_SIZEOF([void *])
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89
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90 if test "${multilib}" = "yes"; then
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91 multilib_arg="--enable-multilib"
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92 else
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93 multilib_arg=
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94 fi
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95
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96 # Get target configury.
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97 unset TSAN_SUPPORTED
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98 unset LSAN_SUPPORTED
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99 . ${srcdir}/configure.tgt
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100 AM_CONDITIONAL(TSAN_SUPPORTED, [test "x$TSAN_SUPPORTED" = "xyes"])
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101 AM_CONDITIONAL(LSAN_SUPPORTED, [test "x$LSAN_SUPPORTED" = "xyes"])
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102
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103 # Check for functions needed.
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131
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104 AC_CHECK_FUNCS(clock_getres clock_gettime clock_settime lstat readlink)
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111
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105
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106 # Common libraries that we need to link against for all sanitizer libs.
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107 link_sanitizer_common='-lpthread -lm'
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108
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109 # At least for glibc, shm_open is in librt. But don't pull that
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110 # in if it still doesn't give us the function we want. This
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111 # test is copied from libgomp.
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112 AC_CHECK_LIB(rt, shm_open,
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113 [link_sanitizer_common="-lrt $link_sanitizer_common"])
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114
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115 # Do a configure time check for -ldl
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116 AC_CHECK_LIB(dl, dlsym,
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117 [link_sanitizer_common="-ldl $link_sanitizer_common"])
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118
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119 # Set up the set of additional libraries that we need to link against for libasan.
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120 link_libasan=$link_sanitizer_common
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121 AC_SUBST(link_libasan)
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122
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123 # Set up the set of additional libraries that we need to link against for libtsan.
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124 link_libtsan=$link_sanitizer_common
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125 AC_SUBST(link_libtsan)
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126
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127 # Set up the set of additional libraries that we need to link against for libubsan.
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128 link_libubsan=$link_sanitizer_common
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129 AC_SUBST(link_libubsan)
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130
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131 # Set up the set of additional libraries that we need to link against for liblsan.
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132 link_liblsan=$link_sanitizer_common
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133 AC_SUBST(link_liblsan)
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134
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135
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136 # At least for glibc, clock_gettime is in librt. But don't pull that
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137 # in if it still doesn't give us the function we want. This
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138 # test is copied from libgomp.
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139 AC_CHECK_LIB(rt, clock_gettime,
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140 [link_libasan="-lrt $link_libasan"
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141 link_libtsan="-lrt $link_libtsan"
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142 # Other sanitizers do not override clock_* API
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143 ])
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144
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145 case "$host" in
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146 *-*-darwin*) MAC_INTERPOSE=true ; enable_static=no ;;
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147 *) MAC_INTERPOSE=false ;;
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148 esac
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149 AM_CONDITIONAL(USING_MAC_INTERPOSE, $MAC_INTERPOSE)
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150
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151 backtrace_supported=yes
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152
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153 AC_MSG_CHECKING([for necessary platform features])
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154 case "$target" in
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155 *-*-linux*)
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156 # Some old Linux distributions miss required syscalls.
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157 sanitizer_supported=no
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158 AC_TRY_COMPILE([#include <sys/syscall.h>],[
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159 syscall (__NR_gettid);
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160 syscall (__NR_futex);
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161 syscall (__NR_exit_group);
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162 ], [sanitizer_supported=yes])
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163 ;;
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164 *)
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165 sanitizer_supported=yes
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166 ;;
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167 esac
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168 AC_MSG_RESULT($sanitizer_supported)
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169 AM_CONDITIONAL(SANITIZER_SUPPORTED, test "$sanitizer_supported" = yes)
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170
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171 # Test for __sync support.
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172 AC_CACHE_CHECK([__sync extensions],
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173 [libsanitizer_cv_sys_sync],
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174 [if test -n "${with_target_subdir}"; then
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175 libsanitizer_cv_sys_sync=yes
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176 else
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177 AC_LINK_IFELSE(
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178 [AC_LANG_PROGRAM([int i;],
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179 [__sync_bool_compare_and_swap (&i, i, i);
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180 __sync_lock_test_and_set (&i, 1);
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181 __sync_lock_release (&i);])],
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182 [libsanitizer_cv_sys_sync=yes],
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183 [libsanitizer_cv_sys_sync=no])
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184 fi])
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185 if test "$libsanitizer_cv_sys_sync" = "yes"; then
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186 AC_DEFINE([HAVE_SYNC_FUNCTIONS], 1,
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187 [Define to 1 if you have the __sync functions])
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188 fi
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189
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190 # Test for __atomic support.
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191 AC_CACHE_CHECK([__atomic extensions],
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192 [libsanitizer_cv_sys_atomic],
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193 [if test -n "${with_target_subdir}"; then
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194 libsanitizer_cv_sys_atomic=yes
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195 else
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196 AC_LINK_IFELSE(
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197 [AC_LANG_PROGRAM([int i;],
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198 [__atomic_load_n (&i, __ATOMIC_ACQUIRE);
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199 __atomic_store_n (&i, 1, __ATOMIC_RELEASE);])],
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200 [libsanitizer_cv_sys_atomic=yes],
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201 [libsanitizer_cv_sys_atomic=no])
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202 fi])
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203 if test "$libsanitizer_cv_sys_atomic" = "yes"; then
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204 AC_DEFINE([HAVE_ATOMIC_FUNCTIONS], 1,
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205 [Define to 1 if you have the __atomic functions])
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206 fi
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207
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208 # The library needs to be able to read the executable itself. Compile
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209 # a file to determine the executable format. The awk script
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210 # filetype.awk prints out the file type.
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211 AC_CACHE_CHECK([output filetype],
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212 [libsanitizer_cv_sys_filetype],
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213 [filetype=
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214 AC_COMPILE_IFELSE(
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215 [AC_LANG_PROGRAM([int i;], [int j;])],
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216 [filetype=`${AWK} -f $srcdir/../libbacktrace/filetype.awk conftest.$ac_objext`],
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217 [AC_MSG_FAILURE([compiler failed])])
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218 libsanitizer_cv_sys_filetype=$filetype])
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219
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220 # Match the file type to decide what files to compile.
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221 FORMAT_FILE=
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222 case "$libsanitizer_cv_sys_filetype" in
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223 elf*) FORMAT_FILE="elf.lo" ;;
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224 *) AC_MSG_WARN([could not determine output file type])
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225 FORMAT_FILE="unknown.lo"
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226 backtrace_supported=no
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227 ;;
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228 esac
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229 AC_SUBST(FORMAT_FILE)
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230
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231 # ELF defines.
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232 elfsize=
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233 case "$libsanitizer_cv_sys_filetype" in
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234 elf32) elfsize=32 ;;
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235 elf64) elfsize=64 ;;
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236 esac
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237 AC_DEFINE_UNQUOTED([BACKTRACE_ELF_SIZE], [$elfsize], [ELF size: 32 or 64])
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238
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239 BACKTRACE_SUPPORTED=0
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240 if test "$backtrace_supported" = "yes"; then
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241 BACKTRACE_SUPPORTED=1
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242 fi
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243 AC_SUBST(BACKTRACE_SUPPORTED)
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244
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245 GCC_HEADER_STDINT(gstdint.h)
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246
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247 AC_CHECK_HEADERS(sys/mman.h alloca.h)
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248 if test "$ac_cv_header_sys_mman_h" = "no"; then
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249 have_mmap=no
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250 else
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251 if test -n "${with_target_subdir}"; then
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252 # When built as a GCC target library, we can't do a link test. We
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253 # simply assume that if we have mman.h, we have mmap.
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254 have_mmap=yes
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255 else
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256 AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
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257 fi
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258 fi
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259 if test "$have_mmap" = "no"; then
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260 VIEW_FILE=read.lo
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261 ALLOC_FILE=alloc.lo
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262 else
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263 VIEW_FILE=mmapio.lo
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145
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264 AC_PREPROC_IFELSE([AC_LANG_SOURCE([
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111
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265 #include <sys/mman.h>
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266 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
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267 #error no MAP_ANONYMOUS
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268 #endif
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145
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269 ])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
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111
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270 fi
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271 AC_SUBST(VIEW_FILE)
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272 AC_SUBST(ALLOC_FILE)
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273
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274 BACKTRACE_USES_MALLOC=0
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275 if test "$ALLOC_FILE" = "alloc.lo"; then
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276 BACKTRACE_USES_MALLOC=1
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277 fi
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278 AC_SUBST(BACKTRACE_USES_MALLOC)
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279
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280 # Don't care about thread support
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281 BACKTRACE_SUPPORTS_THREADS=0
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282 AC_SUBST(BACKTRACE_SUPPORTS_THREADS)
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283
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284 # Check for dl_iterate_phdr.
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285 AC_CHECK_HEADERS(link.h)
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286 if test "$ac_cv_header_link_h" = "no"; then
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287 have_dl_iterate_phdr=no
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288 else
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289 # When built as a GCC target library, we can't do a link test.
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290 AC_EGREP_HEADER([dl_iterate_phdr], [link.h], [have_dl_iterate_phdr=yes],
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291 [have_dl_iterate_phdr=no])
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292 fi
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293 if test "$have_dl_iterate_phdr" = "yes"; then
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294 AC_DEFINE(HAVE_DL_ITERATE_PHDR, 1, [Define if dl_iterate_phdr is available.])
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295 fi
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296
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297 # Check for the fcntl function.
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298 if test -n "${with_target_subdir}"; then
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299 case "${host}" in
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300 *-*-mingw*) have_fcntl=no ;;
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301 *) have_fcntl=yes ;;
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302 esac
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303 else
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304 AC_CHECK_FUNC(fcntl, [have_fcntl=yes], [have_fcntl=no])
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305 fi
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306 if test "$have_fcntl" = "yes"; then
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307 AC_DEFINE([HAVE_FCNTL], 1,
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308 [Define to 1 if you have the fcntl function])
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309 fi
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310
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311 AC_CHECK_DECLS(strnlen)
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312
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313 # Check for getexecname function.
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314 if test -n "${with_target_subdir}"; then
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315 case "${host}" in
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316 *-*-solaris2*) have_getexecname=yes ;;
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317 *) have_getexecname=no ;;
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318 esac
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319 else
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320 AC_CHECK_FUNC(getexecname, [have_getexecname=yes], [have_getexecname=no])
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321 fi
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322 if test "$have_getexecname" = "yes"; then
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323 AC_DEFINE(HAVE_GETEXECNAME, 1, [Define if getexecname is available.])
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324 fi
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325
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326 # Check for rpc/xdr.h
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327 AC_CHECK_HEADERS(rpc/xdr.h)
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328 if test x"$ac_cv_header_rpc_xdr_h" = xyes; then
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329 rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=1"
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330 else
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331 rpc_defs="$rpc_defs -DHAVE_RPC_XDR_H=0"
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332 fi
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333
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334 # Check for tirpc/rpc/xdr.h
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335 AC_CHECK_HEADERS(tirpc/rpc/xdr.h)
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336 if test x"$ac_cv_header_tirpc_rpc_xdr_h" = xyes; then
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337 rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=1"
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338 else
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339 rpc_defs="$rpc_defs -DHAVE_TIRPC_RPC_XDR_H=0"
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340 fi
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341
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342 AC_SUBST([RPC_DEFS], [$rpc_defs])
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343
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344 AM_CONDITIONAL(LIBBACKTRACE_SUPPORTED,
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345 [test "x${BACKTRACE_SUPPORTED}x${BACKTRACE_USES_MALLOC}" = "x1x0"])
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346
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347 AH_BOTTOM([#include "libbacktrace/backtrace-rename.h"])
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348 AC_CONFIG_FILES([Makefile libsanitizer.spec libbacktrace/backtrace-supported.h])
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349 AC_CONFIG_HEADER(config.h)
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350
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351 AC_CONFIG_FILES(AC_FOREACH([DIR], [interception sanitizer_common libbacktrace lsan asan ubsan], [DIR/Makefile ]),
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352 [cat > vpsed$$ << \_EOF
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353 s!`test -f '$<' || echo '$(srcdir)/'`!!
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354 _EOF
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355 sed -f vpsed$$ $ac_file > tmp$$
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356 mv tmp$$ $ac_file
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357 rm vpsed$$
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358 echo 'MULTISUBDIR =' >> $ac_file
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359 ml_norecursion=yes
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360 . ${multi_basedir}/config-ml.in
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361 AS_UNSET([ml_norecursion])
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362 ])
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363
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364 if test "x$TSAN_SUPPORTED" = "xyes"; then
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365 AC_CONFIG_FILES(AC_FOREACH([DIR], [tsan], [DIR/Makefile ]),
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366 [cat > vpsed$$ << \_EOF
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367 s!`test -f '$<' || echo '$(srcdir)/'`!!
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368 _EOF
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369 sed -f vpsed$$ $ac_file > tmp$$
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370 mv tmp$$ $ac_file
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371 rm vpsed$$
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372 echo 'MULTISUBDIR =' >> $ac_file
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373 ml_norecursion=yes
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374 . ${multi_basedir}/config-ml.in
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375 AS_UNSET([ml_norecursion])
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376 ])
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377 fi
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378
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379 AC_SUBST([TSAN_TARGET_DEPENDENT_OBJECTS])
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380 AC_SUBST([SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS])
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381
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382 # Determine what GCC version number to use in filesystem paths.
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383 GCC_BASE_VER
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384
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131
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385 # Add CET specific flags if Intel CET is enabled.
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386 GCC_CET_FLAGS(CET_FLAGS)
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387 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
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388 EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $CET_FLAGS"
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389 EXTRA_ASFLAGS=$CET_FLAGS
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390 AC_SUBST(EXTRA_ASFLAGS)
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391 AC_SUBST(EXTRA_CFLAGS)
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392 AC_SUBST(EXTRA_CXXFLAGS)
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393
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111
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394 AC_OUTPUT
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