1AC_PREREQ([2.65]) 2AC_INIT([libsodium],[1.0.16], 3 [https://github.com/jedisct1/libsodium/issues], 4 [libsodium], 5 [https://github.com/jedisct1/libsodium]) 6AC_CONFIG_AUX_DIR([build-aux]) 7AC_CONFIG_MACRO_DIR([m4]) 8AC_CONFIG_SRCDIR([src/libsodium/sodium/version.c]) 9AC_CANONICAL_HOST 10AM_INIT_AUTOMAKE([1.11 dist-bzip2 tar-ustar foreign subdir-objects]) 11m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) 12AM_MAINTAINER_MODE 13AM_DEP_TRACK 14 15AC_SUBST(VERSION) 16ISODATE=`date +%Y-%m-%d` 17AC_SUBST(ISODATE) 18 19SODIUM_LIBRARY_VERSION_MAJOR=10 20SODIUM_LIBRARY_VERSION_MINOR=1 21DLL_VERSION=8 22SODIUM_LIBRARY_VERSION=24:0:1 23# | | | 24# +------+ | +---+ 25# | | | 26# current:revision:age 27# | | | 28# | | +- increment if interfaces have been added 29# | | set to zero if interfaces have been removed 30# | | or changed 31# | +- increment if source code has changed 32# | set to zero if current is incremented 33# +- increment if interfaces have been added, removed or changed 34AC_SUBST(SODIUM_LIBRARY_VERSION_MAJOR) 35AC_SUBST(SODIUM_LIBRARY_VERSION_MINOR) 36AC_SUBST(SODIUM_LIBRARY_VERSION) 37AC_SUBST(DLL_VERSION) 38 39AC_LANG_ASSERT(C) 40LX_CFLAGS=${CFLAGS-NONE} 41 42dnl Path check 43 44AS_IF([pwd | fgrep ' ' > /dev/null 2>&1], 45 [AC_MSG_ERROR([The build directory contains whitespaces - This can cause tests/installation to fail due to limitations of some libtool versions])] 46) 47 48dnl Switches 49 50AC_ARG_ENABLE(ssp, 51[AS_HELP_STRING(--disable-ssp,Do not compile with -fstack-protector)], 52[ 53 AS_IF([test "x$enableval" = "xno"], [ 54 enable_ssp="no" 55 ], [ 56 enable_ssp="yes" 57 ]) 58], 59[ 60 enable_ssp="yes" 61]) 62 63AC_ARG_ENABLE(asm, 64[AS_HELP_STRING(--disable-asm,[Do not compile assembly code -- As a side effect, this disables CPU-specific implementations on non-Windows platforms. Only for use with targets such as WebAssembly and NativeClient.])], 65[ 66 AS_IF([test "x$enableval" = "xno"], [ 67 enable_asm="no" 68 ], [ 69 enable_asm="yes" 70 ]) 71], 72[ 73 enable_asm="yes" 74]) 75 76AS_IF([test "x$EMSCRIPTEN" != "x"], [ 77 AX_CHECK_COMPILE_FLAG([-s ASSERTIONS=0], [ 78 enable_asm="no" 79 AC_MSG_WARN([compiling to JavaScript - asm implementations disabled]) 80 ], [ 81 AC_MSG_WARN([EMSCRIPTEN environment variable defined, but emcc doesn't appear to be used - Assuming compilation to native code]) 82 CFLAGS="$CFLAGS -U__EMSCRIPTEN__" 83 unset EMSCRIPTEN 84 ]) 85]) 86AS_IF([test "$host_os" = "nacl" -o "$host_os" = "pnacl"], [ 87 enable_asm="no" 88 AC_MSG_WARN([compiling to Native Client - asm implementations disabled]) 89]) 90 91AC_ARG_ENABLE(pie, 92[AS_HELP_STRING(--disable-pie,Do not produce position independent executables)], 93 enable_pie=$enableval, enable_pie="maybe") 94 95AS_CASE([$host_os], [mingw*|cygwin*|msys], [enable_pie="no"]) 96 97AC_ARG_ENABLE(blocking-random, 98[AS_HELP_STRING(--enable-blocking-random,Enable this switch only if /dev/urandom is totally broken on the target platform)], 99[ 100 AS_IF([test "x$enableval" = "xyes"], [ 101 AC_DEFINE([USE_BLOCKING_RANDOM], [1], [/dev/urandom is insecure on the target platform]) 102 ]) 103]) 104 105AC_ARG_ENABLE(minimal, 106[AS_HELP_STRING(--enable-minimal, 107 [Only compile the minimum set of functions required for the high-level API])], 108[ 109 AS_IF([test "x$enableval" = "xyes"], [ 110 enable_minimal="yes" 111 SODIUM_LIBRARY_MINIMAL_DEF="#define SODIUM_LIBRARY_MINIMAL 1" 112 AC_DEFINE([MINIMAL], [1], [Define for a minimal build, without deprecated functions and functions that high-level APIs depend on]) 113 ], [ 114 enable_minimal="no" 115 ]) 116], 117[ 118 enable_minimal="no" 119]) 120AM_CONDITIONAL([MINIMAL], [test x$enable_minimal = xyes]) 121AC_SUBST(SODIUM_LIBRARY_MINIMAL_DEF) 122 123AC_ARG_WITH(pthreads, AC_HELP_STRING([--with-pthreads], 124 [use pthreads library, or --without-pthreads to disable threading support.]), 125 [ ], [withval="yes"]) 126 127AS_IF([test "x$withval" = "xyes"], [ 128 AX_PTHREAD([ 129 AC_DEFINE([HAVE_PTHREAD], [1], [Define if you have POSIX threads libraries and header files]) 130 with_threads="yes" 131 LIBS="$PTHREAD_LIBS $LIBS" 132 CFLAGS="$CFLAGS $PTHREAD_CFLAGS" 133 CC="$PTHREAD_CC"]) 134], [with_threads="no"]) 135 136AC_ARG_WITH(safecode, 137[AS_HELP_STRING(--with-safecode,For maintainers only - please do not use)], 138[AS_IF([test "x$withval" = "xyes"], [ 139 AC_ARG_VAR([SAFECODE_HOME], [set to the safecode base directory]) 140 : ${SAFECODE_HOME:=/opt/safecode} 141 LDFLAGS="$LDFLAGS -L${SAFECODE_HOME}/lib" 142 LIBS="$LIBS -lsc_dbg_rt -lpoolalloc_bitmap -lstdc++" 143 CFLAGS="$CFLAGS -fmemsafety" 144 ]) 145]) 146 147AC_ARG_WITH(ctgrind, 148[AS_HELP_STRING(--with-ctgrind,For maintainers only - please do not use)], 149[AS_IF([test "x$withval" = "xyes"], [ 150 AC_CHECK_LIB(ctgrind, ct_poison) 151 ]) 152]) 153 154ENABLE_CWFLAGS=no 155AC_ARG_ENABLE(debug, 156[AS_HELP_STRING(--enable-debug,For maintainers only - please do not use)], 157[ 158 AS_IF([test "x$enableval" = "xyes"], [ 159 AS_IF([test "x$LX_CFLAGS" = "xNONE"], [ 160 nxflags="" 161 for flag in `echo $CFLAGS`; do 162 AS_CASE([$flag], 163 [-O*], [ ], 164 [-g*], [ ], 165 [*], [AS_VAR_APPEND([nxflags], [" $flag"])]) 166 done 167 CFLAGS="$nxflags -O -g3" 168 ]) 169 ENABLE_CWFLAGS=yes 170 CPPFLAGS="$CPPFLAGS -DDEBUG=1 -U_FORTIFY_SOURCE" 171 ]) 172]) 173 174AC_ARG_ENABLE(opt, 175[AS_HELP_STRING(--enable-opt,Optimize for the native CPU - The resulting library will be faster but not portable)], 176[ 177 AS_IF([test "x$enableval" = "xyes"], [ 178 AX_CHECK_COMPILE_FLAG([-Ofast], [CFLAGS="$CFLAGS -Ofast"]) 179 AX_CHECK_COMPILE_FLAG([-fomit-frame-pointer], [CFLAGS="$CFLAGS -fomit-frame-pointer"]) 180 AX_CHECK_COMPILE_FLAG([-march=native], [CFLAGS="$CFLAGS -march=native"]) 181 ]) 182]) 183 184AC_SUBST([MAINT]) 185 186AX_VALGRIND_CHECK 187 188dnl Checks 189 190AC_PROG_CC_C99 191AM_PROG_AS 192AC_USE_SYSTEM_EXTENSIONS 193AC_C_VARARRAYS 194 195AC_CHECK_DEFINE([__native_client__], [NATIVECLIENT="yes"], []) 196 197AC_CHECK_DEFINE([_FORTIFY_SOURCE], [], [ 198 AX_CHECK_COMPILE_FLAG([-D_FORTIFY_SOURCE=2], 199 [CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"]) 200]) 201 202AX_CHECK_COMPILE_FLAG([-mindirect-branch=thunk], 203 [CFLAGS="$CFLAGS -mindirect-branch=thunk"], 204 [ 205 AX_CHECK_COMPILE_FLAG([-mretpoline], [CFLAGS="$CFLAGS -mretpoline"]) 206 ]) 207 208AX_CHECK_COMPILE_FLAG([-fvisibility=hidden], 209 [CFLAGS="$CFLAGS -fvisibility=hidden"]) 210 211AS_CASE([$host_os], [cygwin*|mingw*|msys|pw32*|cegcc*], [ ], [ 212 AX_CHECK_COMPILE_FLAG([-fPIC], [CFLAGS="$CFLAGS -fPIC"]) 213]) 214 215AS_IF([test "$enable_pie" != "no"],[ 216 AX_CHECK_COMPILE_FLAG([-fPIE], [ 217 AX_CHECK_LINK_FLAG([-pie], [ 218 [CFLAGS="$CFLAGS -fPIE" 219 LDFLAGS="$LDFLAGS -pie"] 220 ]) 221 ]) 222]) 223 224AX_CHECK_COMPILE_FLAG([-fno-strict-aliasing], [CFLAGS="$CFLAGS -fno-strict-aliasing"]) 225AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CFLAGS="$CFLAGS -fno-strict-overflow"], [ 226 AX_CHECK_COMPILE_FLAG([-fwrapv], [CFLAGS="$CFLAGS -fwrapv"]) 227]) 228 229AS_IF([test "$GCC" = "yes" ], [ 230 AS_CASE([$host_cpu], 231 [i?86|amd64|x86_64], [ 232 AC_COMPILE_IFELSE( 233 [AC_LANG_SOURCE([ 234#if !defined(__clang__) && defined(__GNUC__) && ((__GNUC__ << 8) | __GNUC_MINOR__) < 0x403 235# error old gcc 236#endif 237int main(void) { return 0; } 238 ])],,[ 239 AX_CHECK_COMPILE_FLAG([-flax-vector-conversions], [CFLAGS="$CFLAGS -flax-vector-conversions"]) 240 ]) 241 ] 242 ) 243 ]) 244 245LIBTOOL_OLD_FLAGS="$LIBTOOL_EXTRA_FLAGS" 246LIBTOOL_EXTRA_FLAGS="$LIBTOOL_EXTRA_FLAGS -version-info $SODIUM_LIBRARY_VERSION" 247AC_ARG_ENABLE(soname-versions, 248 [AC_HELP_STRING([--enable-soname-versions], [enable soname versions (must be disabled for Android) (default: enabled)])], 249 [ 250 AS_IF([test "x$enableval" = "xno"], [ 251 LIBTOOL_EXTRA_FLAGS="$LIBTOOL_OLD_FLAGS -avoid-version" 252 ]) 253 ] 254) 255 256AS_CASE([$host_os], 257 [cygwin*|mingw*|msys|pw32*|cegcc*], [ 258 AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"]) 259 AX_CHECK_LINK_FLAG([-Wl,--high-entropy-va], [LDFLAGS="$LDFLAGS -Wl,--high-entropy-va"]) 260 AX_CHECK_LINK_FLAG([-Wl,--nxcompat], [LDFLAGS="$LDFLAGS -Wl,--nxcompat"]) 261 ]) 262 263AS_CASE([$host_os], 264 [cygwin*|mingw*|msys|pw32*|cegcc*], [ 265 AX_CHECK_COMPILE_FLAG([-fno-asynchronous-unwind-tables], [ 266 [CFLAGS="$CFLAGS -fno-asynchronous-unwind-tables"] 267 ]) 268]) 269 270AS_IF([test "x$enable_ssp" != "xno"],[ 271 272AS_CASE([$host_os], 273 [cygwin*|mingw*|msys|pw32*|cegcc*|haiku], [ ], 274 [*], [ 275 AX_CHECK_COMPILE_FLAG([-fstack-protector], [ 276 AX_CHECK_LINK_FLAG([-fstack-protector], 277 [CFLAGS="$CFLAGS -fstack-protector"] 278 ) 279 ]) 280 ]) 281]) 282 283AC_ARG_VAR([CWFLAGS], [define to compilation flags for generating extra warnings]) 284 285AX_CHECK_COMPILE_FLAG([$CFLAGS -Wall], [CWFLAGS="$CFLAGS -Wall"]) 286AX_CHECK_COMPILE_FLAG([$CFLAGS -Wextra], [CWFLAGS="$CFLAGS -Wextra"]) 287 288AC_MSG_CHECKING(for clang) 289AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ 290#ifndef __clang__ 291#error Not clang 292#endif 293]])], 294 [AC_MSG_RESULT(yes) 295 AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-unknown-warning-option], 296 [CWFLAGS="$CWFLAGS -Wno-unknown-warning-option"]) 297 ], 298 [AC_MSG_RESULT(no) 299]) 300 301AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wbad-function-cast], [CWFLAGS="$CWFLAGS -Wbad-function-cast"]) 302AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wcast-qual], [CWFLAGS="$CWFLAGS -Wcast-qual"]) 303AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wdiv-by-zero], [CWFLAGS="$CWFLAGS -Wdiv-by-zero"]) 304AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wduplicated-branches], [CWFLAGS="$CWFLAGS -Wduplicated-branches"]) 305AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wduplicated-cond], [CWFLAGS="$CWFLAGS -Wduplicated-cond"]) 306AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wfloat-equal], [CWFLAGS="$CWFLAGS -Wfloat-equal"]) 307AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wformat=2], [CWFLAGS="$CWFLAGS -Wformat=2"]) 308AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wlogical-op], [CWFLAGS="$CWFLAGS -Wlogical-op"]) 309AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmaybe-uninitialized], [CWFLAGS="$CWFLAGS -Wmaybe-uninitialized"]) 310AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmisleading-indentation], [CWFLAGS="$CWFLAGS -Wmisleading-indentation"]) 311AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmissing-declarations], [CWFLAGS="$CWFLAGS -Wmissing-declarations"]) 312AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wmissing-prototypes], [CWFLAGS="$CWFLAGS -Wmissing-prototypes"]) 313AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnested-externs], [CWFLAGS="$CWFLAGS -Wnested-externs"]) 314AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-type-limits], [CWFLAGS="$CWFLAGS -Wno-type-limits"]) 315AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wno-unknown-pragmas], [CWFLAGS="$CWFLAGS -Wno-unknown-pragmas"]) 316AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnormalized=id], [CWFLAGS="$CWFLAGS -Wnormalized=id"]) 317AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wnull-dereference], [CWFLAGS="$CWFLAGS -Wnull-dereference"]) 318AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wold-style-declaration], [CWFLAGS="$CWFLAGS -Wold-style-declaration"]) 319AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wpointer-arith], [CWFLAGS="$CWFLAGS -Wpointer-arith"]) 320AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wredundant-decls], [CWFLAGS="$CWFLAGS -Wredundant-decls"]) 321AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wrestrict], [CWFLAGS="$CWFLAGS -Wrestrict"]) 322AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wshorten-64-to-32], [CWFLAGS="$CWFLAGS -Wshorten-64-to-32"]) 323AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wsometimes-uninitialized], [CWFLAGS="$CWFLAGS -Wsometimes-uninitialized"]) 324AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wstrict-prototypes], [CWFLAGS="$CWFLAGS -Wstrict-prototypes"]) 325AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wswitch-enum], [CWFLAGS="$CWFLAGS -Wswitch-enum"]) 326AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wvariable-decl], [CWFLAGS="$CWFLAGS -Wvariable-decl"]) 327AX_CHECK_COMPILE_FLAG([$CWFLAGS -Wwrite-strings], [CWFLAGS="$CWFLAGS -Wwrite-strings"]) 328 329AX_CHECK_LINK_FLAG([-Wl,-z,relro], [LDFLAGS="$LDFLAGS -Wl,-z,relro"]) 330AX_CHECK_LINK_FLAG([-Wl,-z,now], [LDFLAGS="$LDFLAGS -Wl,-z,now"]) 331AX_CHECK_LINK_FLAG([-Wl,-z,noexecstack], [LDFLAGS="$LDFLAGS -Wl,-z,noexecstack"]) 332 333AC_MSG_CHECKING(for a broken clang + AVX512 combination) 334AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ 335#if !(defined(__AVX512F__) && defined(__clang__) && __clang_major__ < 4) 336#error Not a broken clang + AVX512 combination 337#endif 338]])], 339 [AC_MSG_RESULT(yes - disabling AVX512 optimizations) 340 AX_CHECK_COMPILE_FLAG([$CFLAGS -mno-avx512f], 341 [CFLAGS="$CFLAGS -mno-avx512f"]) 342 ], 343 [AC_MSG_RESULT(no) 344]) 345 346AX_CHECK_CATCHABLE_SEGV 347AX_CHECK_CATCHABLE_ABRT 348 349AS_IF([test "x$with_threads" = "xyes"], [ 350 AX_TLS([AC_MSG_RESULT(thread local storage is supported)], 351 [AC_MSG_RESULT(thread local storage is not supported)]) ]) 352 353LT_INIT 354AC_SUBST(LIBTOOL_DEPS) 355 356AC_ARG_VAR([AR], [path to the ar utility]) 357AC_CHECK_TOOL([AR], [ar], [ar]) 358 359dnl Checks for headers 360 361AS_IF([test "x$EMSCRIPTEN" = "x" -a "$host_os" != "pnacl"], [ 362 363 oldcflags="$CFLAGS" 364 AX_CHECK_COMPILE_FLAG([-mmmx], [CFLAGS="$CFLAGS -mmmx"]) 365 AC_MSG_CHECKING(for MMX instructions set) 366 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 367#pragma GCC target("mmx") 368#include <mmintrin.h> 369]], [[ __m64 x = _mm_setzero_si64(); ]])], 370 [AC_MSG_RESULT(yes) 371 AC_DEFINE([HAVE_MMINTRIN_H], [1], [mmx is available]) 372 AX_CHECK_COMPILE_FLAG([-mmmx], [CFLAGS_MMX="-mmmx"])], 373 [AC_MSG_RESULT(no)]) 374 CFLAGS="$oldcflags" 375 376 oldcflags="$CFLAGS" 377 AX_CHECK_COMPILE_FLAG([-msse2], [CFLAGS="$CFLAGS -msse2"]) 378 AC_MSG_CHECKING(for SSE2 instructions set) 379 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 380#pragma GCC target("sse2") 381#ifndef __SSE2__ 382# define __SSE2__ 383#endif 384#include <emmintrin.h> 385]], [[ __m128d x = _mm_setzero_pd(); 386 __m128i z = _mm_srli_epi64(_mm_setzero_si128(), 26); ]])], 387 [AC_MSG_RESULT(yes) 388 AC_DEFINE([HAVE_EMMINTRIN_H], [1], [sse2 is available]) 389 AX_CHECK_COMPILE_FLAG([-msse2], [CFLAGS_SSE2="-msse2"])], 390 [AC_MSG_RESULT(no)]) 391 CFLAGS="$oldcflags" 392 393 oldcflags="$CFLAGS" 394 AX_CHECK_COMPILE_FLAG([-msse3], [CFLAGS="$CFLAGS -msse3"]) 395 AC_MSG_CHECKING(for SSE3 instructions set) 396 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 397#pragma GCC target("sse3") 398#include <pmmintrin.h> 399]], [[ __m128 x = _mm_addsub_ps(_mm_cvtpd_ps(_mm_setzero_pd()), 400 _mm_cvtpd_ps(_mm_setzero_pd())); ]])], 401 [AC_MSG_RESULT(yes) 402 AC_DEFINE([HAVE_PMMINTRIN_H], [1], [sse3 is available]) 403 AX_CHECK_COMPILE_FLAG([-msse3], [CFLAGS_SSE3="-msse3"])], 404 [AC_MSG_RESULT(no)]) 405 CFLAGS="$oldcflags" 406 407 oldcflags="$CFLAGS" 408 AX_CHECK_COMPILE_FLAG([-mssse3], [CFLAGS="$CFLAGS -mssse3"]) 409 AC_MSG_CHECKING(for SSSE3 instructions set) 410 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 411#pragma GCC target("ssse3") 412#include <tmmintrin.h> 413]], [[ __m64 x = _mm_abs_pi32(_m_from_int(0)); ]])], 414 [AC_MSG_RESULT(yes) 415 AC_DEFINE([HAVE_TMMINTRIN_H], [1], [ssse3 is available]) 416 AX_CHECK_COMPILE_FLAG([-mssse3], [CFLAGS_SSSE3="-mssse3"])], 417 [AC_MSG_RESULT(no)]) 418 CFLAGS="$oldcflags" 419 420 oldcflags="$CFLAGS" 421 AX_CHECK_COMPILE_FLAG([-msse4.1], [CFLAGS="$CFLAGS -msse4.1"]) 422 AC_MSG_CHECKING(for SSE4.1 instructions set) 423 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 424#pragma GCC target("sse4.1") 425#include <smmintrin.h> 426]], [[ __m128i x = _mm_minpos_epu16(_mm_setzero_si128()); ]])], 427 [AC_MSG_RESULT(yes) 428 AC_DEFINE([HAVE_SMMINTRIN_H], [1], [sse4.1 is available]) 429 AX_CHECK_COMPILE_FLAG([-msse4.1], [CFLAGS_SSE41="-msse4.1"])], 430 [AC_MSG_RESULT(no)]) 431 CFLAGS="$oldcflags" 432 433 oldcflags="$CFLAGS" 434 AX_CHECK_COMPILE_FLAG([-mavx], [CFLAGS="$CFLAGS -mavx"]) 435 AC_MSG_CHECKING(for AVX instructions set) 436 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 437#ifdef __native_client__ 438# error NativeClient detected - Avoiding AVX opcodes 439#endif 440#pragma GCC target("avx") 441#include <immintrin.h> 442]], [[ _mm256_zeroall(); ]])], 443 [AC_MSG_RESULT(yes) 444 AC_DEFINE([HAVE_AVXINTRIN_H], [1], [AVX is available]) 445 AX_CHECK_COMPILE_FLAG([-mavx], [CFLAGS_AVX="-mavx"])], 446 [AC_MSG_RESULT(no)]) 447 CFLAGS="$oldcflags" 448 449 oldcflags="$CFLAGS" 450 AX_CHECK_COMPILE_FLAG([-mavx2], [CFLAGS="$CFLAGS -mavx2"]) 451 AC_MSG_CHECKING(for AVX2 instructions set) 452 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 453#ifdef __native_client__ 454# error NativeClient detected - Avoiding AVX2 opcodes 455#endif 456#pragma GCC target("avx2") 457#include <immintrin.h> 458]], [[ 459__m256 x = _mm256_set1_ps(3.14); 460__m256 y = _mm256_permutevar8x32_ps(x, _mm256_set1_epi32(42)); 461return _mm256_movemask_ps(_mm256_cmp_ps(x, y, _CMP_NEQ_OQ)); 462]])], 463 [AC_MSG_RESULT(yes) 464 AC_DEFINE([HAVE_AVX2INTRIN_H], [1], [AVX2 is available]) 465 AX_CHECK_COMPILE_FLAG([-mavx2], [CFLAGS_AVX2="-mavx2"]) 466 AC_MSG_CHECKING(if _mm256_broadcastsi128_si256 is correctly defined) 467 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 468#ifdef __native_client__ 469# error NativeClient detected - Avoiding AVX2 opcodes 470#endif 471#pragma GCC target("avx2") 472#include <immintrin.h> 473 ]], [[ __m256i y = _mm256_broadcastsi128_si256(_mm_setzero_si128()); ]])], 474 [AC_MSG_RESULT(yes)], 475 [AC_MSG_RESULT(no) 476 AC_DEFINE([_mm256_broadcastsi128_si256], [_mm_broadcastsi128_si256], 477 [Define to the local name of _mm256_broadcastsi128_si256])]) 478 ], 479 [AC_MSG_RESULT(no)]) 480 CFLAGS="$oldcflags" 481 482 oldcflags="$CFLAGS" 483 AX_CHECK_COMPILE_FLAG([-mavx512f], [CFLAGS="$CFLAGS -mavx512f"]) 484 AC_MSG_CHECKING(for AVX512F instructions set) 485 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 486#ifdef __native_client__ 487# error NativeClient detected - Avoiding AVX512F opcodes 488#endif 489#pragma GCC target("avx512f") 490#include <immintrin.h> 491]], [[ 492__m512i x = _mm512_setzero_epi32(); 493__m512i y = _mm512_permutexvar_epi64(_mm512_setr_epi64(0, 1, 4, 5, 2, 3, 6, 7), x); 494]])], 495 [AC_MSG_RESULT(yes) 496 AC_DEFINE([HAVE_AVX512FINTRIN_H], [1], [AVX512F is available]) 497 AX_CHECK_COMPILE_FLAG([-mavx512f], [CFLAGS_AVX512F="-mavx512f"])], 498 [AC_MSG_RESULT(no)]) 499 CFLAGS="$oldcflags" 500 501 oldcflags="$CFLAGS" 502 AX_CHECK_COMPILE_FLAG([-maes], [CFLAGS="$CFLAGS -maes"]) 503 AX_CHECK_COMPILE_FLAG([-mpclmul], [CFLAGS="$CFLAGS -mpclmul"]) 504 AC_MSG_CHECKING(for AESNI instructions set and PCLMULQDQ) 505 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 506#ifdef __native_client__ 507# error NativeClient detected - Avoiding AESNI opcodes 508#endif 509#pragma GCC target("aes") 510#pragma GCC target("pclmul") 511#include <wmmintrin.h> 512]], [[ __m128i x = _mm_aesimc_si128(_mm_setzero_si128()); 513 __m128i y = _mm_clmulepi64_si128(_mm_setzero_si128(), _mm_setzero_si128(), 0);]])], 514 [AC_MSG_RESULT(yes) 515 AC_DEFINE([HAVE_WMMINTRIN_H], [1], [aesni is available]) 516 AX_CHECK_COMPILE_FLAG([-maes], [CFLAGS_AESNI="-maes"]) 517 AX_CHECK_COMPILE_FLAG([-mpclmul], [CFLAGS_PCLMUL="-mpclmul"]) 518 ], 519 [AC_MSG_RESULT(no)]) 520 CFLAGS="$oldcflags" 521 522 oldcflags="$CFLAGS" 523 AX_CHECK_COMPILE_FLAG([-mrdrnd], [CFLAGS="$CFLAGS -mrdrnd"]) 524 AC_MSG_CHECKING(for RDRAND) 525 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 526#ifdef __native_client__ 527# error NativeClient detected - Avoiding RDRAND opcodes 528#endif 529#pragma GCC target("rdrnd") 530#include <immintrin.h> 531]], [[ unsigned long long x; _rdrand64_step(&x); ]])], 532 [AC_MSG_RESULT(yes) 533 AC_DEFINE([HAVE_RDRAND], [1], [rdrand is available]) 534 AX_CHECK_COMPILE_FLAG([-mrdrnd], [CFLAGS_RDRAND="-mrdrnd"]) 535 ], 536 [AC_MSG_RESULT(no)]) 537 CFLAGS="$oldcflags" 538 539]) 540 541AC_SUBST(CFLAGS_MMX) 542AC_SUBST(CFLAGS_SSE2) 543AC_SUBST(CFLAGS_SSE3) 544AC_SUBST(CFLAGS_SSSE3) 545AC_SUBST(CFLAGS_SSE41) 546AC_SUBST(CFLAGS_AVX) 547AC_SUBST(CFLAGS_AVX2) 548AC_SUBST(CFLAGS_AVX512F) 549AC_SUBST(CFLAGS_AESNI) 550AC_SUBST(CFLAGS_PCLMUL) 551AC_SUBST(CFLAGS_RDRAND) 552 553AC_CHECK_HEADERS([sys/mman.h intrin.h]) 554 555AC_MSG_CHECKING([if _xgetbv() is available]) 556AC_LINK_IFELSE( 557 [AC_LANG_PROGRAM([[ #include <intrin.h> ]], [[ (void) _xgetbv(0) ]])], 558 [AC_MSG_RESULT(yes) 559 AC_DEFINE([HAVE__XGETBV], [1], [_xgetbv() is available])], 560 [AC_MSG_RESULT(no)]) 561 562dnl Checks for typedefs, structures, and compiler characteristics. 563 564AC_C_INLINE 565AS_CASE([$host_cpu], 566 [i?86|amd64|x86_64], 567 [ac_cv_c_bigendian=no] 568) 569AC_C_BIGENDIAN( 570 AC_DEFINE(NATIVE_BIG_ENDIAN, 1, [machine is bigendian]), 571 AC_DEFINE(NATIVE_LITTLE_ENDIAN, 1, [machine is littleendian]), 572 AC_MSG_ERROR([unknown endianness]), 573 AC_MSG_ERROR([universal endianness is not supported - compile separately and use lipo(1)]) 574) 575 576AC_MSG_CHECKING(whether __STDC_LIMIT_MACROS is required) 577AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 578#include <limits.h> 579#include <stdint.h> 580]], [[ 581(void) SIZE_MAX; 582(void) UINT64_MAX; 583]])], 584 [AC_MSG_RESULT(no)], 585 [AC_MSG_RESULT(yes) 586 CPPFLAGS="$CPPFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS" 587]) 588 589AC_MSG_CHECKING(whether we can use inline asm code) 590AC_LINK_IFELSE([AC_LANG_PROGRAM([[ 591]], [[ 592int a = 42; 593int *pnt = &a; 594__asm__ __volatile__ ("" : : "r"(pnt) : "memory"); 595]])], 596 [AC_MSG_RESULT(yes) 597 AC_DEFINE([HAVE_INLINE_ASM], [1], [inline asm code can be used])] 598 [AC_MSG_RESULT(no)] 599) 600 601HAVE_AMD64_ASM_V=0 602AS_IF([test "$enable_asm" != "no"],[ 603 AC_MSG_CHECKING(whether we can use x86_64 asm code) 604 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 605 ]], [[ 606#if defined(__amd64) || defined(__amd64__) || defined(__x86_64__) 607# if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(_WIN32) || defined(_WIN64) 608# error Windows x86_64 calling conventions are not supported yet 609# endif 610/* neat */ 611#else 612# error !x86_64 613#endif 614unsigned char i = 0, o = 0, t; 615__asm__ __volatile__ ("pxor %%xmm12, %%xmm6 \n" 616 "movb (%[i]), %[t] \n" 617 "addb %[t], (%[o]) \n" 618 : [t] "=&r"(t) 619 : [o] "D"(&o), [i] "S"(&i) 620 : "memory", "flags", "cc"); 621]])], 622 [AC_MSG_RESULT(yes) 623 AC_DEFINE([HAVE_AMD64_ASM], [1], [x86_64 asm code can be used]) 624 HAVE_AMD64_ASM_V=1], 625 [AC_MSG_RESULT(no)]) 626]) 627AM_CONDITIONAL([HAVE_AMD64_ASM], [test $HAVE_AMD64_ASM_V = 1]) 628AC_SUBST(HAVE_AMD64_ASM_V) 629 630HAVE_AVX_ASM_V=0 631AS_IF([test "$enable_asm" != "no"],[ 632 AC_MSG_CHECKING(whether we can assemble AVX opcodes) 633 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 634 ]], [[ 635#if defined(__amd64) || defined(__amd64__) || defined(__x86_64__) 636# if defined(__CYGWIN__) || defined(__MINGW32__) || defined(__MINGW64__) || defined(_WIN32) || defined(_WIN64) 637# error Windows x86_64 calling conventions are not supported yet 638# endif 639/* neat */ 640#else 641# error !x86_64 642#endif 643__asm__ __volatile__ ("vpunpcklqdq %xmm0,%xmm13,%xmm0"); 644]])], 645 [AC_MSG_RESULT(yes) 646 AC_DEFINE([HAVE_AVX_ASM], [1], [AVX opcodes are supported]) 647 HAVE_AVX_ASM_V=1], 648 [AC_MSG_RESULT(no)]) 649]) 650AM_CONDITIONAL([HAVE_AVX_ASM], [test $HAVE_AVX_ASM_V = 1]) 651AC_SUBST(HAVE_AVX_ASM_V) 652 653AC_MSG_CHECKING(for 128-bit arithmetic) 654HAVE_TI_MODE_V=0 655AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 656#if !defined(__clang__) && !defined(__GNUC__) && !defined(__SIZEOF_INT128__) 657# error mode(TI) is a gcc extension, and __int128 is not available 658#endif 659#if defined(__clang__) && !defined(__x86_64__) && !defined(__aarch64__) 660# error clang does not properly handle the 128-bit type on 32-bit systems 661#endif 662#ifndef NATIVE_LITTLE_ENDIAN 663# error libsodium currently expects a little endian CPU for the 128-bit type 664#endif 665#ifdef __EMSCRIPTEN__ 666# error emscripten currently doesn't support some operations on integers larger than 64 bits 667#endif 668#include <stddef.h> 669#include <stdint.h> 670#if defined(__SIZEOF_INT128__) 671typedef unsigned __int128 uint128_t; 672#else 673typedef unsigned uint128_t __attribute__((mode(TI))); 674#endif 675void fcontract(uint128_t *t) { 676 *t += 0x8000000000000 - 1; 677 *t *= *t; 678 *t >>= 84; 679} 680]], [[ 681(void) fcontract; 682]])], 683[AC_MSG_RESULT(yes) 684 AC_DEFINE([HAVE_TI_MODE], [1], [gcc TI mode is available]) 685 HAVE_TI_MODE_V=1], 686[AC_MSG_RESULT(no)]) 687AM_CONDITIONAL([HAVE_TI_MODE], [test $HAVE_TI_MODE_V = 1]) 688AC_SUBST(HAVE_TI_MODE_V) 689 690HAVE_CPUID_V=0 691AS_IF([test "$enable_asm" != "no" -o "$host_alias" = "x86_64-nacl"],[ 692 AC_MSG_CHECKING(for cpuid instruction) 693 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ ]], [[ 694unsigned int cpu_info[4]; 695__asm__ __volatile__ ("xchgl %%ebx, %k1; cpuid; xchgl %%ebx, %k1" : 696 "=a" (cpu_info[0]), "=&r" (cpu_info[1]), 697 "=c" (cpu_info[2]), "=d" (cpu_info[3]) : 698 "0" (0U), "2" (0U)); 699 ]])], 700 [AC_MSG_RESULT(yes) 701 AC_DEFINE([HAVE_CPUID], [1], [cpuid instruction is available]) 702 HAVE_CPUID_V=1], 703 [AC_MSG_RESULT(no)]) 704 ]) 705AC_SUBST(HAVE_CPUID_V) 706 707asm_hide_symbol="unsupported" 708AS_IF([test "$enable_asm" != "no" -o "$host_os" = "nacl"],[ 709 AC_MSG_CHECKING(if the .private_extern asm directive is supported) 710 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[ 711__asm__ __volatile__ (".private_extern dummy_symbol \n" 712 ".private_extern _dummy_symbol \n" 713 ".globl dummy_symbol \n" 714 ".globl _dummy_symbol \n" 715 "dummy_symbol: \n" 716 "_dummy_symbol: \n" 717 " nop \n" 718); 719 ]])], 720 [AC_MSG_RESULT(yes) 721 asm_hide_symbol=".private_extern"], 722 [AC_MSG_RESULT(no)]) 723 724 AC_MSG_CHECKING(if the .hidden asm directive is supported) 725 AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[ 726__asm__ __volatile__ (".hidden dummy_symbol \n" 727 ".hidden _dummy_symbol \n" 728 ".globl dummy_symbol \n" 729 ".globl _dummy_symbol \n" 730 "dummy_symbol: \n" 731 "_dummy_symbol: \n" 732 " nop \n" 733); 734 ]])], 735 [AC_MSG_RESULT(yes) 736 AS_IF([test "$asm_hide_symbol" = "unsupported"], 737 [asm_hide_symbol=".hidden"], 738 [AC_MSG_NOTICE([unable to reliably tag symbols as private]) 739 asm_hide_symbol="unsupported"]) 740 ], 741 [AC_MSG_RESULT(no)]) 742 743 AS_IF([test "$asm_hide_symbol" != "unsupported"],[ 744 AC_DEFINE_UNQUOTED([ASM_HIDE_SYMBOL], [$asm_hide_symbol], [directive to hide symbols]) 745 ]) 746]) 747 748AC_MSG_CHECKING(if weak symbols are supported) 749AC_LINK_IFELSE([AC_LANG_PROGRAM([[ 750#if !defined(__ELF__) && !defined(__APPLE_CC__) 751# error Support for weak symbols may not be available 752#endif 753__attribute__((weak)) void __dummy(void *x) { } 754void f(void *x) { __dummy(x); } 755]], [[ ]] 756)], 757[AC_MSG_RESULT(yes) 758 AC_DEFINE([HAVE_WEAK_SYMBOLS], [1], [weak symbols are supported])], 759[AC_MSG_RESULT(no)]) 760 761AC_MSG_CHECKING(if data alignment is required) 762aligned_access_required=yes 763AS_CASE([$host_cpu], 764 [i?86|amd64|x86_64|powerpc*|s390*], 765 [aligned_access_required=no], 766 [arm*], 767 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ 768#ifndef __ARM_FEATURE_UNALIGNED 769# error data alignment is required 770#endif 771 ]], [[]])], [aligned_access_required=no], [])] 772) 773AS_IF([test "x$aligned_access_required" = "xyes"], 774 [AC_MSG_RESULT(yes)], 775 [AC_MSG_RESULT(no) 776 AC_DEFINE([CPU_UNALIGNED_ACCESS], [1], [unaligned memory access is supported])]) 777 778AC_MSG_CHECKING(if atomic operations are supported) 779AC_LINK_IFELSE([AC_LANG_PROGRAM([[ ]], [[ 780static volatile int _sodium_lock; 781__sync_lock_test_and_set(&_sodium_lock, 1); 782__sync_lock_release(&_sodium_lock); 783]] 784)], 785[AC_MSG_RESULT(yes) 786 AC_DEFINE([HAVE_ATOMIC_OPS], [1], [atomic operations are supported])], 787[AC_MSG_RESULT(no)]) 788 789dnl Checks for functions and headers 790 791AC_FUNC_ALLOCA 792AS_IF([test "x$EMSCRIPTEN" = "x"],[ 793 AC_CHECK_FUNCS([arc4random arc4random_buf]) 794 AC_CHECK_FUNCS([mmap mlock madvise mprotect memset_s explicit_bzero nanosleep]) 795]) 796AC_CHECK_FUNCS([posix_memalign getpid]) 797 798AC_SUBST([LIBTOOL_EXTRA_FLAGS]) 799 800TEST_LDFLAGS='' 801AS_IF([test "x$EMSCRIPTEN" != "x"],[ 802 EXEEXT=.js 803 TEST_LDFLAGS='--memory-init-file 0 --pre-js pre.js.inc -s RESERVED_FUNCTION_POINTERS=8' 804]) 805AC_SUBST(TEST_LDFLAGS) 806AM_CONDITIONAL([EMSCRIPTEN], [test "x$EMSCRIPTEN" != "x"]) 807 808AM_CONDITIONAL([NATIVECLIENT], [test "x$NATIVECLIENT" != "x"]) 809 810AC_DEFINE([CONFIGURED], [1], [the build system was properly configured]) 811 812dnl Libtool. 813 814LT_INIT([dlopen]) 815AC_LIBTOOL_WIN32_DLL 816gl_LD_OUTPUT_DEF 817 818dnl Output. 819 820AH_VERBATIM([NDEBUG], [/* Always evaluate assert() calls */ 821#ifdef NDEBUG 822#/**/undef/**/ NDEBUG 823#endif]) 824 825AS_IF([test "x$ENABLE_CWFLAGS" = "xyes"], [ 826 CFLAGS="$CFLAGS $CWFLAGS" 827]) 828 829AC_CONFIG_FILES([Makefile 830 builds/Makefile 831 contrib/Makefile 832 dist-build/Makefile 833 libsodium.pc 834 libsodium-uninstalled.pc 835 msvc-scripts/Makefile 836 src/Makefile 837 src/libsodium/Makefile 838 src/libsodium/include/Makefile 839 src/libsodium/include/sodium/version.h 840 test/default/Makefile 841 test/Makefile 842 ]) 843AC_OUTPUT 844