1 # Copyright 2013 the V8 project authors. All rights reserved. 2 # Redistribution and use in source and binary forms, with or without 3 # modification, are permitted provided that the following conditions are 4 # met: 5 # 6 # * Redistributions of source code must retain the above copyright 7 # notice, this list of conditions and the following disclaimer. 8 # * Redistributions in binary form must reproduce the above 9 # copyright notice, this list of conditions and the following 10 # disclaimer in the documentation and/or other materials provided 11 # with the distribution. 12 # * Neither the name of Google Inc. nor the names of its 13 # contributors may be used to endorse or promote products derived 14 # from this software without specific prior written permission. 15 # 16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 # Shared definitions for all V8-related targets. 29 30 { 31 'variables': { 32 'msvs_use_common_release': 0, 33 'gcc_version%': 'unknown', 34 'CXX%': '${CXX:-$(which g++)}', # Used to assemble a shell command. 35 'v8_target_arch%': '<(target_arch)', 36 # Native Client builds currently use the V8 ARM JIT and 37 # arm/simulator-arm.cc to defer the significant effort required 38 # for NaCl JIT support. The nacl_target_arch variable provides 39 # the 'true' target arch for places in this file that need it. 40 # TODO(bradchen): get rid of nacl_target_arch when someday 41 # NaCl V8 builds stop using the ARM simulator 42 'nacl_target_arch%': 'none', # must be set externally 43 44 # Setting 'v8_can_use_vfp32dregs' to 'true' will cause V8 to use the VFP 45 # registers d16-d31 in the generated code, both in the snapshot and for the 46 # ARM target. Leaving the default value of 'false' will avoid the use of 47 # these registers in the snapshot and use CPU feature probing when running 48 # on the target. 49 'v8_can_use_vfp32dregs%': 'false', 50 'arm_test%': 'off', 51 52 # Similar to vfp but on MIPS. 53 'v8_can_use_fpu_instructions%': 'true', 54 55 # Similar to the ARM hard float ABI but on MIPS. 56 'v8_use_mips_abi_hardfloat%': 'true', 57 58 # Default arch variant for MIPS. 59 'mips_arch_variant%': 'mips32r2', 60 61 'v8_enable_backtrace%': 0, 62 63 # Enable profiling support. Only required on Windows. 64 'v8_enable_prof%': 0, 65 66 # Some versions of GCC 4.5 seem to need -fno-strict-aliasing. 67 'v8_no_strict_aliasing%': 0, 68 69 # Chrome needs this definition unconditionally. For standalone V8 builds, 70 # it's handled in build/standalone.gypi. 71 'want_separate_host_toolset%': 1, 72 73 # Toolset the d8 binary should be compiled for. Possible values are 'host' 74 # and 'target'. If you want to run v8 tests, it needs to be set to 'target'. 75 # The setting is ignored if want_separate_host_toolset is 0. 76 'v8_toolset_for_d8%': 'target', 77 78 'host_os%': '<(OS)', 79 'werror%': '-Werror', 80 # For a shared library build, results in "libv8-<(soname_version).so". 81 'soname_version%': '', 82 83 # Allow to suppress the array bounds warning (default is no suppression). 84 'wno_array_bounds%': '', 85 }, 86 'target_defaults': { 87 'conditions': [ 88 ['v8_target_arch=="arm"', { 89 'defines': [ 90 'V8_TARGET_ARCH_ARM', 91 ], 92 'target_conditions': [ 93 ['_toolset=="host"', { 94 'variables': { 95 'armcompiler': '<!($(echo ${CXX_host:-$(which g++)}) -v 2>&1 | grep -q "^Target: arm" && echo "yes" || echo "no")', 96 }, 97 'conditions': [ 98 ['armcompiler=="yes"', { 99 'conditions': [ 100 [ 'arm_version==7', { 101 'cflags': ['-march=armv7-a',], 102 }], 103 [ 'arm_version==7 or arm_version=="default"', { 104 'conditions': [ 105 [ 'arm_fpu!="default"', { 106 'cflags': ['-mfpu=<(arm_fpu)',], 107 }], 108 ], 109 }], 110 [ 'arm_float_abi!="default"', { 111 'cflags': ['-mfloat-abi=<(arm_float_abi)',], 112 }], 113 [ 'arm_thumb==1', { 114 'cflags': ['-mthumb',], 115 }], 116 [ 'arm_thumb==0', { 117 'cflags': ['-marm',], 118 }], 119 [ 'arm_test=="on"', { 120 'defines': [ 121 'ARM_TEST', 122 ], 123 }], 124 ], 125 }, { 126 # armcompiler=="no" 127 'conditions': [ 128 [ 'arm_version==7 or arm_version=="default"', { 129 'defines': [ 130 'CAN_USE_ARMV7_INSTRUCTIONS=1', 131 ], 132 'conditions': [ 133 [ 'arm_fpu=="default"', { 134 'defines': [ 135 'CAN_USE_VFP3_INSTRUCTIONS', 136 ], 137 }], 138 [ 'arm_fpu=="vfpv3-d16"', { 139 'defines': [ 140 'CAN_USE_VFP3_INSTRUCTIONS', 141 ], 142 }], 143 [ 'arm_fpu=="vfpv3"', { 144 'defines': [ 145 'CAN_USE_VFP3_INSTRUCTIONS', 146 'CAN_USE_VFP32DREGS', 147 ], 148 }], 149 [ 'arm_fpu=="neon"', { 150 'defines': [ 151 'CAN_USE_VFP3_INSTRUCTIONS', 152 'CAN_USE_VFP32DREGS', 153 'CAN_USE_NEON', 154 ], 155 }], 156 ], 157 }], 158 [ 'arm_float_abi=="hard"', { 159 'defines': [ 160 'USE_EABI_HARDFLOAT=1', 161 ], 162 }], 163 [ 'arm_float_abi=="softfp" or arm_float_abi=="default"', { 164 'defines': [ 165 'USE_EABI_HARDFLOAT=0', 166 ], 167 }], 168 ], 169 'defines': [ 170 'ARM_TEST', 171 ], 172 }], 173 ], 174 }], # _toolset=="host" 175 ['_toolset=="target"', { 176 'variables': { 177 'armcompiler': '<!($(echo ${CXX_target:-<(CXX)}) -v 2>&1 | grep -q "^Target: arm" && echo "yes" || echo "no")', 178 }, 179 'conditions': [ 180 ['armcompiler=="yes"', { 181 'conditions': [ 182 [ 'arm_version==7', { 183 'cflags': ['-march=armv7-a',], 184 }], 185 [ 'arm_version==7 or arm_version=="default"', { 186 'conditions': [ 187 [ 'arm_fpu!="default"', { 188 'cflags': ['-mfpu=<(arm_fpu)',], 189 }], 190 ], 191 }], 192 [ 'arm_float_abi!="default"', { 193 'cflags': ['-mfloat-abi=<(arm_float_abi)',], 194 }], 195 [ 'arm_thumb==1', { 196 'cflags': ['-mthumb',], 197 }], 198 [ 'arm_thumb==0', { 199 'cflags': ['-marm',], 200 }], 201 [ 'arm_test=="on"', { 202 'defines': [ 203 'ARM_TEST', 204 ], 205 'conditions': [ 206 [ 'arm_fpu=="vfpv3-d16"', { 207 'defines': [ 208 'CAN_USE_VFP3_INSTRUCTIONS', 209 ], 210 }], 211 [ 'arm_fpu=="vfpv3"', { 212 'defines': [ 213 'CAN_USE_VFP3_INSTRUCTIONS', 214 'CAN_USE_VFP32DREGS', 215 ], 216 }], 217 [ 'arm_fpu=="neon"', { 218 'defines': [ 219 'CAN_USE_VFP3_INSTRUCTIONS', 220 'CAN_USE_VFP32DREGS', 221 'CAN_USE_NEON', 222 ], 223 }], 224 ], 225 }], 226 ], 227 }, { 228 # armcompiler=="no" 229 'conditions': [ 230 [ 'arm_version==7 or arm_version=="default"', { 231 'defines': [ 232 'CAN_USE_ARMV7_INSTRUCTIONS=1', 233 ], 234 'conditions': [ 235 [ 'arm_fpu=="default"', { 236 'defines': [ 237 'CAN_USE_VFP3_INSTRUCTIONS', 238 'CAN_USE_VFP32DREGS', 239 'CAN_USE_NEON', 240 ], 241 }], 242 [ 'arm_fpu=="vfpv3-d16"', { 243 'defines': [ 244 'CAN_USE_VFP3_INSTRUCTIONS', 245 ], 246 }], 247 [ 'arm_fpu=="vfpv3"', { 248 'defines': [ 249 'CAN_USE_VFP3_INSTRUCTIONS', 250 'CAN_USE_VFP32DREGS', 251 ], 252 }], 253 [ 'arm_fpu=="neon"', { 254 'defines': [ 255 'CAN_USE_VFP3_INSTRUCTIONS', 256 'CAN_USE_VFP32DREGS', 257 'CAN_USE_NEON', 258 ], 259 }], 260 ], 261 }], 262 [ 'arm_float_abi=="hard"', { 263 'defines': [ 264 'USE_EABI_HARDFLOAT=1', 265 ], 266 }], 267 [ 'arm_float_abi=="softfp" or arm_float_abi=="default"', { 268 'defines': [ 269 'USE_EABI_HARDFLOAT=0', 270 ], 271 }], 272 ], 273 'defines': [ 274 'ARM_TEST', 275 ], 276 }], 277 ], 278 }], # _toolset=="target" 279 ], 280 }], # v8_target_arch=="arm" 281 ['v8_target_arch=="arm64"', { 282 'defines': [ 283 'V8_TARGET_ARCH_ARM64', 284 ], 285 }], 286 ['v8_target_arch=="ia32"', { 287 'defines': [ 288 'V8_TARGET_ARCH_IA32', 289 ], 290 }], # v8_target_arch=="ia32" 291 ['v8_target_arch=="x87"', { 292 'defines': [ 293 'V8_TARGET_ARCH_X87', 294 ], 295 'cflags': ['-march=i586'], 296 }], # v8_target_arch=="x87" 297 ['v8_target_arch=="mips"', { 298 'defines': [ 299 'V8_TARGET_ARCH_MIPS', 300 ], 301 'variables': { 302 'mipscompiler': '<!($(echo <(CXX)) -v 2>&1 | grep -q "^Target: mips" && echo "yes" || echo "no")', 303 }, 304 'conditions': [ 305 ['mipscompiler=="yes"', { 306 'target_conditions': [ 307 ['_toolset=="target"', { 308 'cflags': ['-EB'], 309 'ldflags': ['-EB'], 310 'conditions': [ 311 [ 'v8_use_mips_abi_hardfloat=="true"', { 312 'cflags': ['-mhard-float'], 313 'ldflags': ['-mhard-float'], 314 }, { 315 'cflags': ['-msoft-float'], 316 'ldflags': ['-msoft-float'], 317 }], 318 ['mips_arch_variant=="mips32r2"', { 319 'cflags': ['-mips32r2', '-Wa,-mips32r2'], 320 }], 321 ['mips_arch_variant=="mips32r1"', { 322 'cflags': ['-mips32', '-Wa,-mips32'], 323 }], 324 ], 325 }], 326 ], 327 }], 328 [ 'v8_can_use_fpu_instructions=="true"', { 329 'defines': [ 330 'CAN_USE_FPU_INSTRUCTIONS', 331 ], 332 }], 333 [ 'v8_use_mips_abi_hardfloat=="true"', { 334 'defines': [ 335 '__mips_hard_float=1', 336 'CAN_USE_FPU_INSTRUCTIONS', 337 ], 338 }, { 339 'defines': [ 340 '__mips_soft_float=1' 341 ], 342 }], 343 ['mips_arch_variant=="mips32r2"', { 344 'defines': ['_MIPS_ARCH_MIPS32R2',], 345 }], 346 ], 347 }], # v8_target_arch=="mips" 348 ['v8_target_arch=="mipsel"', { 349 'defines': [ 350 'V8_TARGET_ARCH_MIPS', 351 ], 352 'variables': { 353 'mipscompiler': '<!($(echo <(CXX)) -v 2>&1 | grep -q "^Target: mips" && echo "yes" || echo "no")', 354 }, 355 'conditions': [ 356 ['mipscompiler=="yes"', { 357 'target_conditions': [ 358 ['_toolset=="target"', { 359 'cflags': ['-EL'], 360 'ldflags': ['-EL'], 361 'conditions': [ 362 [ 'v8_use_mips_abi_hardfloat=="true"', { 363 'cflags': ['-mhard-float'], 364 'ldflags': ['-mhard-float'], 365 }, { 366 'cflags': ['-msoft-float'], 367 'ldflags': ['-msoft-float'], 368 }], 369 ['mips_arch_variant=="mips32r2"', { 370 'cflags': ['-mips32r2', '-Wa,-mips32r2'], 371 }], 372 ['mips_arch_variant=="mips32r1"', { 373 'cflags': ['-mips32', '-Wa,-mips32'], 374 }], 375 ['mips_arch_variant=="loongson"', { 376 'cflags': ['-mips3', '-Wa,-mips3'], 377 }], 378 ], 379 }], 380 ], 381 }], 382 [ 'v8_can_use_fpu_instructions=="true"', { 383 'defines': [ 384 'CAN_USE_FPU_INSTRUCTIONS', 385 ], 386 }], 387 [ 'v8_use_mips_abi_hardfloat=="true"', { 388 'defines': [ 389 '__mips_hard_float=1', 390 'CAN_USE_FPU_INSTRUCTIONS', 391 ], 392 }, { 393 'defines': [ 394 '__mips_soft_float=1' 395 ], 396 }], 397 ['mips_arch_variant=="mips32r2"', { 398 'defines': ['_MIPS_ARCH_MIPS32R2',], 399 }], 400 ['mips_arch_variant=="loongson"', { 401 'defines': ['_MIPS_ARCH_LOONGSON',], 402 }], 403 ], 404 }], # v8_target_arch=="mipsel" 405 ['v8_target_arch=="x64"', { 406 'defines': [ 407 'V8_TARGET_ARCH_X64', 408 ], 409 'xcode_settings': { 410 'ARCHS': [ 'x86_64' ], 411 }, 412 'msvs_settings': { 413 'VCLinkerTool': { 414 'StackReserveSize': '2097152', 415 }, 416 }, 417 'msvs_configuration_platform': 'x64', 418 }], # v8_target_arch=="x64" 419 ['OS=="win"', { 420 'defines': [ 421 'WIN32', 422 ], 423 'msvs_configuration_attributes': { 424 'OutputDirectory': '<(DEPTH)\\build\\$(ConfigurationName)', 425 'IntermediateDirectory': '$(OutDir)\\obj\\$(ProjectName)', 426 'CharacterSet': '1', 427 }, 428 }], 429 ['OS=="win" and v8_enable_prof==1', { 430 'msvs_settings': { 431 'VCLinkerTool': { 432 'GenerateMapFile': 'true', 433 }, 434 }, 435 }], 436 ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \ 437 or OS=="netbsd" or OS=="qnx"', { 438 'conditions': [ 439 [ 'v8_no_strict_aliasing==1', { 440 'cflags': [ '-fno-strict-aliasing' ], 441 }], 442 ], # conditions 443 }], 444 ['OS=="solaris"', { 445 'defines': [ '__C99FEATURES__=1' ], # isinf() etc. 446 }], 447 ['(OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="solaris" \ 448 or OS=="netbsd" or OS=="mac" or OS=="android" or OS=="qnx") and \ 449 (v8_target_arch=="arm" or v8_target_arch=="ia32" or v8_target_arch=="x87" or\ 450 v8_target_arch=="mips" or v8_target_arch=="mipsel")', { 451 # Check whether the host compiler and target compiler support the 452 # '-m32' option and set it if so. 453 'target_conditions': [ 454 ['_toolset=="host"', { 455 'variables': { 456 'm32flag': '<!(($(echo ${CXX_host:-$(which g++)}) -m32 -E - > /dev/null 2>&1 < /dev/null) && echo "-m32" || true)', 457 }, 458 'cflags': [ '<(m32flag)' ], 459 'ldflags': [ '<(m32flag)' ], 460 'xcode_settings': { 461 'ARCHS': [ 'i386' ], 462 }, 463 }], 464 ['_toolset=="target"', { 465 'variables': { 466 'm32flag': '<!(($(echo ${CXX_target:-<(CXX)}) -m32 -E - > /dev/null 2>&1 < /dev/null) && echo "-m32" || true)', 467 'clang%': 0, 468 }, 469 'conditions': [ 470 ['((OS!="android" and OS!="qnx") or clang==1) and \ 471 nacl_target_arch!="nacl_x64"', { 472 'cflags': [ '<(m32flag)' ], 473 'ldflags': [ '<(m32flag)' ], 474 }], 475 ['OS=="android"', { 476 'android_enable_fdo': 1, 477 }], 478 ], 479 'xcode_settings': { 480 'ARCHS': [ 'i386' ], 481 }, 482 }], 483 ], 484 }], 485 ['(OS=="linux" or OS=="android") and \ 486 (v8_target_arch=="x64" or v8_target_arch=="arm64")', { 487 # Check whether the host compiler and target compiler support the 488 # '-m64' option and set it if so. 489 'target_conditions': [ 490 ['_toolset=="host"', { 491 'variables': { 492 'm64flag': '<!(($(echo ${CXX_host:-$(which g++)}) -m64 -E - > /dev/null 2>&1 < /dev/null) && echo "-m64" || true)', 493 }, 494 'cflags': [ '<(m64flag)' ], 495 'ldflags': [ '<(m64flag)' ], 496 }], 497 ['_toolset=="target"', { 498 'variables': { 499 'm64flag': '<!(($(echo ${CXX_target:-<(CXX)}) -m64 -E - > /dev/null 2>&1 < /dev/null) && echo "-m64" || true)', 500 }, 501 'conditions': [ 502 ['((OS!="android" and OS!="qnx") or clang==1)', { 503 'cflags': [ '<(m64flag)' ], 504 'ldflags': [ '<(m64flag)' ], 505 }], 506 ['OS=="android"', { 507 'android_enable_fdo': 1, 508 }], 509 ], 510 }] 511 ], 512 }], 513 ['OS=="freebsd" or OS=="openbsd"', { 514 'cflags': [ '-I/usr/local/include' ], 515 }], 516 ['OS=="netbsd"', { 517 'cflags': [ '-I/usr/pkg/include' ], 518 }], 519 ], # conditions 520 'configurations': { 521 # Abstract configuration for v8_optimized_debug == 0. 522 'DebugBase0': { 523 'abstract': 1, 524 'msvs_settings': { 525 'VCCLCompilerTool': { 526 'Optimization': '0', 527 'conditions': [ 528 ['component=="shared_library"', { 529 'RuntimeLibrary': '3', # /MDd 530 }, { 531 'RuntimeLibrary': '1', # /MTd 532 }], 533 ], 534 }, 535 'VCLinkerTool': { 536 'LinkIncremental': '2', 537 }, 538 }, 539 'conditions': [ 540 ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \ 541 OS=="qnx"', { 542 'cflags!': [ 543 '-O0', 544 '-O3', 545 '-O2', 546 '-O1', 547 '-Os', 548 ], 549 'cflags': [ 550 '-fdata-sections', 551 '-ffunction-sections', 552 ], 553 }], 554 ['OS=="mac"', { 555 'xcode_settings': { 556 'GCC_OPTIMIZATION_LEVEL': '0', # -O0 557 }, 558 }], 559 ], 560 }, # DebugBase0 561 # Abstract configuration for v8_optimized_debug == 1. 562 'DebugBase1': { 563 'abstract': 1, 564 'msvs_settings': { 565 'VCCLCompilerTool': { 566 'Optimization': '1', 567 'InlineFunctionExpansion': '2', 568 'EnableIntrinsicFunctions': 'true', 569 'FavorSizeOrSpeed': '0', 570 'StringPooling': 'true', 571 'BasicRuntimeChecks': '0', 572 'conditions': [ 573 ['component=="shared_library"', { 574 'RuntimeLibrary': '3', # /MDd 575 }, { 576 'RuntimeLibrary': '1', # /MTd 577 }], 578 ], 579 }, 580 'VCLinkerTool': { 581 'LinkIncremental': '2', 582 }, 583 }, 584 'conditions': [ 585 ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \ 586 OS=="qnx"', { 587 'cflags!': [ 588 '-O0', 589 '-O3', # TODO(2807) should be -O1. 590 '-O2', 591 '-Os', 592 ], 593 'cflags': [ 594 '-fdata-sections', 595 '-ffunction-sections', 596 '-O1', # TODO(2807) should be -O3. 597 ], 598 'conditions': [ 599 ['gcc_version==44 and clang==0', { 600 'cflags': [ 601 # Avoid crashes with gcc 4.4 in the v8 test suite. 602 '-fno-tree-vrp', 603 ], 604 }], 605 ], 606 }], 607 ['OS=="mac"', { 608 'xcode_settings': { 609 'GCC_OPTIMIZATION_LEVEL': '3', # -O3 610 'GCC_STRICT_ALIASING': 'YES', 611 }, 612 }], 613 ], 614 }, # DebugBase1 615 # Abstract configuration for v8_optimized_debug == 2. 616 'DebugBase2': { 617 'abstract': 1, 618 'msvs_settings': { 619 'VCCLCompilerTool': { 620 'Optimization': '2', 621 'InlineFunctionExpansion': '2', 622 'EnableIntrinsicFunctions': 'true', 623 'FavorSizeOrSpeed': '0', 624 'StringPooling': 'true', 625 'BasicRuntimeChecks': '0', 626 'conditions': [ 627 ['component=="shared_library"', { 628 'RuntimeLibrary': '3', #/MDd 629 }, { 630 'RuntimeLibrary': '1', #/MTd 631 }], 632 ['v8_target_arch=="x64"', { 633 # TODO(2207): remove this option once the bug is fixed. 634 'WholeProgramOptimization': 'true', 635 }], 636 ], 637 }, 638 'VCLinkerTool': { 639 'LinkIncremental': '1', 640 'OptimizeReferences': '2', 641 'EnableCOMDATFolding': '2', 642 }, 643 }, 644 'conditions': [ 645 ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \ 646 OS=="qnx"', { 647 'cflags!': [ 648 '-O0', 649 '-O1', 650 '-Os', 651 ], 652 'cflags': [ 653 '-fdata-sections', 654 '-ffunction-sections', 655 ], 656 'defines': [ 657 'OPTIMIZED_DEBUG' 658 ], 659 'conditions': [ 660 # TODO(crbug.com/272548): Avoid -O3 in NaCl 661 ['nacl_target_arch=="none"', { 662 'cflags': ['-O3'], 663 'cflags!': ['-O2'], 664 }, { 665 'cflags': ['-O2'], 666 'cflags!': ['-O3'], 667 }], 668 ['gcc_version==44 and clang==0', { 669 'cflags': [ 670 # Avoid crashes with gcc 4.4 in the v8 test suite. 671 '-fno-tree-vrp', 672 ], 673 }], 674 ], 675 }], 676 ['OS=="mac"', { 677 'xcode_settings': { 678 'GCC_OPTIMIZATION_LEVEL': '3', # -O3 679 'GCC_STRICT_ALIASING': 'YES', 680 }, 681 }], 682 ], 683 }, # DebugBase2 684 # Common settings for the Debug configuration. 685 'DebugBaseCommon': { 686 'abstract': 1, 687 'defines': [ 688 'ENABLE_DISASSEMBLER', 689 'V8_ENABLE_CHECKS', 690 'OBJECT_PRINT', 691 'VERIFY_HEAP', 692 'DEBUG' 693 ], 694 'conditions': [ 695 ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd" or \ 696 OS=="qnx"', { 697 'cflags': [ '-Woverloaded-virtual', '<(wno_array_bounds)', ], 698 }], 699 ['OS=="linux" and v8_enable_backtrace==1', { 700 # Support for backtrace_symbols. 701 'ldflags': [ '-rdynamic' ], 702 }], 703 ['OS=="android"', { 704 'variables': { 705 'android_full_debug%': 1, 706 }, 707 'conditions': [ 708 ['android_full_debug==0', { 709 # Disable full debug if we want a faster v8 in a debug build. 710 # TODO(2304): pass DISABLE_DEBUG_ASSERT instead of hiding DEBUG. 711 'defines!': [ 712 'DEBUG', 713 ], 714 }], 715 ], 716 }], 717 ], 718 }, # DebugBaseCommon 719 'Debug': { 720 'inherit_from': ['DebugBaseCommon'], 721 'conditions': [ 722 ['v8_optimized_debug==0', { 723 'inherit_from': ['DebugBase0'], 724 }], 725 ['v8_optimized_debug==1', { 726 'inherit_from': ['DebugBase1'], 727 }], 728 ['v8_optimized_debug==2', { 729 'inherit_from': ['DebugBase2'], 730 }], 731 ], 732 }, # Debug 733 'Release': { 734 'conditions': [ 735 ['OS=="linux" or OS=="freebsd" or OS=="openbsd" or OS=="netbsd"', { 736 'cflags!': [ 737 '-Os', 738 ], 739 'cflags': [ 740 '-fdata-sections', 741 '-ffunction-sections', 742 '<(wno_array_bounds)', 743 ], 744 'conditions': [ 745 [ 'gcc_version==44 and clang==0', { 746 'cflags': [ 747 # Avoid crashes with gcc 4.4 in the v8 test suite. 748 '-fno-tree-vrp', 749 ], 750 }], 751 # TODO(crbug.com/272548): Avoid -O3 in NaCl 752 ['nacl_target_arch=="none"', { 753 'cflags': ['-O3'], 754 'cflags!': ['-O2'], 755 }, { 756 'cflags': ['-O2'], 757 'cflags!': ['-O3'], 758 }], 759 ], 760 }], 761 ['OS=="android"', { 762 'cflags!': [ 763 '-O3', 764 '-Os', 765 ], 766 'cflags': [ 767 '-fdata-sections', 768 '-ffunction-sections', 769 '-O2', 770 ], 771 'conditions': [ 772 [ 'gcc_version==44 and clang==0', { 773 'cflags': [ 774 # Avoid crashes with gcc 4.4 in the v8 test suite. 775 '-fno-tree-vrp', 776 ], 777 }], 778 ], 779 }], 780 ['OS=="mac"', { 781 'xcode_settings': { 782 'GCC_OPTIMIZATION_LEVEL': '3', # -O3 783 784 # -fstrict-aliasing. Mainline gcc 785 # enables this at -O2 and above, 786 # but Apple gcc does not unless it 787 # is specified explicitly. 788 'GCC_STRICT_ALIASING': 'YES', 789 }, 790 }], # OS=="mac" 791 ['OS=="win"', { 792 'msvs_settings': { 793 'VCCLCompilerTool': { 794 'Optimization': '2', 795 'InlineFunctionExpansion': '2', 796 'EnableIntrinsicFunctions': 'true', 797 'FavorSizeOrSpeed': '0', 798 'StringPooling': 'true', 799 'conditions': [ 800 ['component=="shared_library"', { 801 'RuntimeLibrary': '2', #/MD 802 }, { 803 'RuntimeLibrary': '0', #/MT 804 }], 805 ['v8_target_arch=="x64"', { 806 # TODO(2207): remove this option once the bug is fixed. 807 'WholeProgramOptimization': 'true', 808 }], 809 ], 810 }, 811 'VCLinkerTool': { 812 'LinkIncremental': '1', 813 'OptimizeReferences': '2', 814 'EnableCOMDATFolding': '2', 815 }, 816 }, 817 }], # OS=="win" 818 ], # conditions 819 }, # Release 820 }, # configurations 821 }, # target_defaults 822 } 823
