mirror of
https://github.com/nodejs/node.git
synced 2026-11-09 15:11:11 -05:00
Anna Henningsen
2707cc221a
Original commit message:
[heap-profiler] Fix crash when a snapshot deleted while taking one
Fix a crash/hang that occurred when deleting a snapshot during the
GC that is part of taking another one.
Specifically, when deleting the only other snapshot in such
a situation, the `v8::HeapSnapshot::Delete()` method sees that there
is only one (complete) snapshot at that point, and decides that it is
okay to perform “delete all snapshots” instead of just deleting
the requested one. That resets the internal string lookup table
of the heap profiler, but the new snapshot that is currently in
progress still holds references to the old string lookup table,
leading to a use-after-free segfault or infinite loop.
Fix this by guarding against resetting the string table while
another heap snapshot is being taken, and add a test that would
crash before this fix.
This can be triggered in Node.js by repeatedly calling
`v8.getHeapSnapshot()`, which provides heap snapshots as weakly
held host objects.
Change-Id: If9ac3728bf79114000982f1e7bb05e8034299e3c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2464823
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70445}
Refs: https://github.com/v8/v8/commit/3176bfd447a909fa9608687fe3eabcf62ec7b2eb
PR-URL: https://github.com/nodejs/node/pull/35612
Refs: https://github.com/nodejs/node/issues/35559
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de>
562 lines
19 KiB
Python
562 lines
19 KiB
Python
{
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'variables': {
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'configuring_node%': 0,
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'asan%': 0,
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'werror': '', # Turn off -Werror in V8 build.
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'visibility%': 'hidden', # V8's visibility setting
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'target_arch%': 'ia32', # set v8's target architecture
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'host_arch%': 'ia32', # set v8's host architecture
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'want_separate_host_toolset%': 0, # V8 should not build target and host
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'library%': 'static_library', # allow override to 'shared_library' for DLL/.so builds
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'component%': 'static_library', # NB. these names match with what V8 expects
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'msvs_multi_core_compile': '0', # we do enable multicore compiles, but not using the V8 way
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'enable_pgo_generate%': '0',
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'enable_pgo_use%': '0',
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'python%': 'python',
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'node_shared%': 'false',
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'force_dynamic_crt%': 0,
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'node_use_v8_platform%': 'true',
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'node_use_bundled_v8%': 'true',
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'node_module_version%': '',
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'node_with_ltcg%': '',
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'node_shared_openssl%': 'false',
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'node_tag%': '',
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'uv_library%': 'static_library',
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'clang%': 0,
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'error_on_warn%': 'false',
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'openssl_fips%': '',
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'openssl_no_asm%': 0,
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# Don't use ICU data file (icudtl.dat) from V8, we use our own.
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'icu_use_data_file_flag%': 0,
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# Reset this number to 0 on major V8 upgrades.
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# Increment by one for each non-official patch applied to deps/v8.
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'v8_embedder_string': '-node.17',
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##### V8 defaults for Node.js #####
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# Turn on SipHash for hash seed generation, addresses HashWick
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'v8_use_siphash': 'true',
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# These are more relevant for V8 internal development.
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# Refs: https://github.com/nodejs/node/issues/23122
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# Refs: https://github.com/nodejs/node/issues/23167
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# Enable compiler warnings when using V8_DEPRECATED apis from V8 code.
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'v8_deprecation_warnings': 0,
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# Enable compiler warnings when using V8_DEPRECATE_SOON apis from V8 code.
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'v8_imminent_deprecation_warnings': 0,
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# Enable disassembler for `--print-code` v8 options
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'v8_enable_disassembler': 1,
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# Sets -dOBJECT_PRINT.
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'v8_enable_object_print%': 1,
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# https://github.com/nodejs/node/pull/22920/files#r222779926
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'v8_enable_handle_zapping': 0,
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# Disable pointer compression. Can be enabled at build time via configure
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# options but default values are required here as this file is also used by
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# node-gyp to build addons.
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'v8_enable_pointer_compression%': 0,
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'v8_enable_31bit_smis_on_64bit_arch%': 0,
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# Disable V8 untrusted code mitigations.
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# See https://github.com/v8/v8/wiki/Untrusted-code-mitigations
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'v8_untrusted_code_mitigations': 0,
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# This is more of a V8 dev setting
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# https://github.com/nodejs/node/pull/22920/files#r222779926
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'v8_enable_fast_mksnapshot': 0,
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'v8_win64_unwinding_info': 1,
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# TODO(refack): make v8-perfetto happen
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'v8_use_perfetto': 0,
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##### end V8 defaults #####
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'conditions': [
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['OS == "win"', {
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'os_posix': 0,
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'v8_postmortem_support%': 0,
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'obj_dir': '<(PRODUCT_DIR)/obj',
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'v8_base': '<(PRODUCT_DIR)/lib/libv8_snapshot.a',
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}, {
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'os_posix': 1,
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'v8_postmortem_support%': 1,
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}],
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['GENERATOR == "ninja"', {
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'obj_dir': '<(PRODUCT_DIR)/obj',
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'v8_base': '<(PRODUCT_DIR)/obj/tools/v8_gypfiles/libv8_snapshot.a',
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}, {
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'obj_dir%': '<(PRODUCT_DIR)/obj.target',
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'v8_base': '<(PRODUCT_DIR)/obj.target/tools/v8_gypfiles/libv8_snapshot.a',
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}],
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['openssl_fips != ""', {
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'openssl_product': '<(STATIC_LIB_PREFIX)crypto<(STATIC_LIB_SUFFIX)',
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}, {
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'openssl_product': '<(STATIC_LIB_PREFIX)openssl<(STATIC_LIB_SUFFIX)',
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}],
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['OS=="mac"', {
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'clang%': 1,
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'obj_dir%': '<(PRODUCT_DIR)/obj.target',
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'v8_base': '<(PRODUCT_DIR)/libv8_snapshot.a',
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}],
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['target_arch in "ppc64 s390x"', {
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'v8_enable_backtrace': 1,
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}],
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['OS=="linux"', {
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'node_section_ordering_info%': ''
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}]
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],
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},
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'target_defaults': {
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'default_configuration': 'Release',
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'configurations': {
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'Debug': {
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'variables': {
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'v8_enable_handle_zapping': 1,
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'conditions': [
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['node_shared != "true"', {
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'MSVC_runtimeType': 1, # MultiThreadedDebug (/MTd)
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}, {
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'MSVC_runtimeType': 3, # MultiThreadedDebugDLL (/MDd)
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}],
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],
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},
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'defines': [ 'DEBUG', '_DEBUG', 'V8_ENABLE_CHECKS' ],
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'cflags': [ '-g', '-O0' ],
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'conditions': [
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['OS=="aix"', {
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'cflags': [ '-gxcoff' ],
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'ldflags': [ '-Wl,-bbigtoc' ],
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}],
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['OS == "android"', {
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'cflags': [ '-fPIC' ],
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'ldflags': [ '-fPIC' ]
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}],
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],
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'msvs_settings': {
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'VCCLCompilerTool': {
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'BasicRuntimeChecks': 3, # /RTC1
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'MinimalRebuild': 'false',
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'OmitFramePointers': 'false',
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'Optimization': 0, # /Od, no optimization
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'RuntimeLibrary': '<(MSVC_runtimeType)',
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},
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'VCLinkerTool': {
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'LinkIncremental': 2, # enable incremental linking
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},
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},
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'xcode_settings': {
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'GCC_OPTIMIZATION_LEVEL': '0', # stop gyp from defaulting to -Os
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},
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},
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'Release': {
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'variables': {
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'v8_enable_handle_zapping': 0,
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'pgo_generate': ' -fprofile-generate ',
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'pgo_use': ' -fprofile-use -fprofile-correction ',
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'lto': ' -flto=4 -fuse-linker-plugin -ffat-lto-objects ',
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'conditions': [
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['node_shared != "true"', {
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'MSVC_runtimeType': 0 # MultiThreaded (/MT)
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}, {
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'MSVC_runtimeType': 2 # MultiThreadedDLL (/MD)
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}],
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],
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},
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'cflags': [ '-O3' ],
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'conditions': [
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['OS=="linux"', {
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'conditions': [
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['node_section_ordering_info!=""', {
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'cflags': [
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'-fuse-ld=gold',
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'-ffunction-sections',
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],
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'ldflags': [
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'-fuse-ld=gold',
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'-Wl,--section-ordering-file=<(node_section_ordering_info)',
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],
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}],
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],
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}],
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['OS=="solaris"', {
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# pull in V8's postmortem metadata
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'ldflags': [ '-Wl,-z,allextract' ]
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}],
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['OS!="mac" and OS!="win"', {
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'cflags': [ '-fno-omit-frame-pointer' ],
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}],
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['OS=="linux"', {
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'conditions': [
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['enable_pgo_generate=="true"', {
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'cflags': ['<(pgo_generate)'],
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'ldflags': ['<(pgo_generate)'],
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},],
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['enable_pgo_use=="true"', {
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'cflags': ['<(pgo_use)'],
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'ldflags': ['<(pgo_use)'],
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},],
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['enable_lto=="true"', {
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'cflags': ['<(lto)'],
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'ldflags': ['<(lto)'],
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},],
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],
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},],
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['OS == "android"', {
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'cflags': [ '-fPIC' ],
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'ldflags': [ '-fPIC' ]
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}],
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],
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'msvs_settings': {
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'VCCLCompilerTool': {
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'conditions': [
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['target_arch=="arm64"', {
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'FloatingPointModel': 1 # /fp:strict
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}]
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],
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'EnableFunctionLevelLinking': 'true',
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'EnableIntrinsicFunctions': 'true',
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'FavorSizeOrSpeed': 1, # /Ot, favor speed over size
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'InlineFunctionExpansion': 2, # /Ob2, inline anything eligible
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'OmitFramePointers': 'true',
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'Optimization': 3, # /Ox, full optimization
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'RuntimeLibrary': '<(MSVC_runtimeType)',
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'RuntimeTypeInfo': 'false',
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}
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},
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'xcode_settings': {
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'GCC_OPTIMIZATION_LEVEL': '3', # stop gyp from defaulting to -Os
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},
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}
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},
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# Defines these mostly for node-gyp to pickup, and warn addon authors of
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# imminent V8 deprecations, also to sync how dependencies are configured.
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'defines': [
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'V8_DEPRECATION_WARNINGS',
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'V8_IMMINENT_DEPRECATION_WARNINGS',
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],
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# Forcibly disable -Werror. We support a wide range of compilers, it's
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# simply not feasible to squelch all warnings, never mind that the
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# libraries in deps/ are not under our control.
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'conditions': [
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[ 'error_on_warn=="false"', {
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'cflags!': ['-Werror'],
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}, '(_target_name!="<(node_lib_target_name)" or '
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'_target_name!="<(node_core_target_name)")', {
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'cflags!': ['-Werror'],
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}],
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],
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'msvs_settings': {
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'VCCLCompilerTool': {
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'BufferSecurityCheck': 'true',
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'DebugInformationFormat': 1, # /Z7 embed info in .obj files
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'ExceptionHandling': 0, # /EHsc
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'MultiProcessorCompilation': 'true',
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'StringPooling': 'true', # pool string literals
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'SuppressStartupBanner': 'true',
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'WarnAsError': 'false',
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'WarningLevel': 3, # /W3
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},
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'VCLinkerTool': {
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'target_conditions': [
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['_type=="executable"', {
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'SubSystem': 1, # /SUBSYSTEM:CONSOLE
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}],
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],
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'conditions': [
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['target_arch=="ia32"', {
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'TargetMachine' : 1, # /MACHINE:X86
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}],
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['target_arch=="x64"', {
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'TargetMachine' : 17, # /MACHINE:X64
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}],
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['target_arch=="arm64"', {
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'TargetMachine' : 0, # NotSet. MACHINE:ARM64 is inferred from the input files.
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}],
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],
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'GenerateDebugInformation': 'true',
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'SuppressStartupBanner': 'true',
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},
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},
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# Disable warnings:
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# - "C4251: class needs to have dll-interface"
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# - "C4275: non-DLL-interface used as base for DLL-interface"
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# Over 10k of these warnings are generated when compiling node,
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# originating from v8.h. Most of them are false positives.
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# See also: https://github.com/nodejs/node/pull/15570
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# TODO: re-enable when Visual Studio fixes these upstream.
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#
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# - "C4267: conversion from 'size_t' to 'int'"
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# Many any originate from our dependencies, and their sheer number
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# drowns out other, more legitimate warnings.
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# - "C4244: conversion from 'type1' to 'type2', possible loss of data"
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# Ususaly safe. Disable for `dep`, enable for `src`
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'msvs_disabled_warnings': [4351, 4355, 4800, 4251, 4275, 4244, 4267],
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'msvs_cygwin_shell': 0, # prevent actions from trying to use cygwin
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'conditions': [
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[ 'configuring_node', {
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'msvs_configuration_attributes': {
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'OutputDirectory': '<(DEPTH)/out/$(Configuration)/',
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'IntermediateDirectory': '$(OutDir)obj/$(ProjectName)/'
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},
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}],
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[ 'target_arch=="x64"', {
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'msvs_configuration_platform': 'x64',
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}],
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[ 'target_arch=="arm64"', {
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'msvs_configuration_platform': 'arm64',
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}],
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['asan == 1 and OS != "mac"', {
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'cflags+': [
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'-fno-omit-frame-pointer',
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'-fsanitize=address',
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'-fsanitize-address-use-after-scope',
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],
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'defines': [ 'LEAK_SANITIZER', 'V8_USE_ADDRESS_SANITIZER' ],
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'cflags!': [ '-fomit-frame-pointer' ],
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'ldflags': [ '-fsanitize=address' ],
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}],
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['asan == 1 and OS == "mac"', {
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'xcode_settings': {
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'OTHER_CFLAGS+': [
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'-fno-omit-frame-pointer',
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'-gline-tables-only',
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'-fsanitize=address',
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'-DLEAK_SANITIZER'
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],
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'OTHER_CFLAGS!': [
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'-fomit-frame-pointer',
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],
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},
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'target_conditions': [
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['_type!="static_library"', {
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'xcode_settings': {'OTHER_LDFLAGS': ['-fsanitize=address']},
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}],
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],
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}],
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['v8_enable_pointer_compression == 1', {
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'defines': ['V8_COMPRESS_POINTERS'],
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}],
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['v8_enable_pointer_compression == 1 or v8_enable_31bit_smis_on_64bit_arch == 1', {
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'defines': ['V8_31BIT_SMIS_ON_64BIT_ARCH'],
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}],
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['OS == "win"', {
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'defines': [
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'WIN32',
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# we don't really want VC++ warning us about
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# how dangerous C functions are...
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'_CRT_SECURE_NO_DEPRECATE',
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# ... or that C implementations shouldn't use
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# POSIX names
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'_CRT_NONSTDC_NO_DEPRECATE',
|
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# Make sure the STL doesn't try to use exceptions
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'_HAS_EXCEPTIONS=0',
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'BUILDING_V8_SHARED=1',
|
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'BUILDING_UV_SHARED=1',
|
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],
|
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}],
|
|
[ 'OS in "linux freebsd openbsd solaris aix"', {
|
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'cflags': [ '-pthread' ],
|
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'ldflags': [ '-pthread' ],
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}],
|
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[ 'OS in "linux freebsd openbsd solaris android aix cloudabi"', {
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'cflags': [ '-Wall', '-Wextra', '-Wno-unused-parameter', ],
|
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'cflags_cc': [ '-fno-rtti', '-fno-exceptions', '-std=gnu++1y' ],
|
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'defines': [ '__STDC_FORMAT_MACROS' ],
|
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'ldflags': [ '-rdynamic' ],
|
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'target_conditions': [
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|
# The 1990s toolchain on SmartOS can't handle thin archives.
|
|
['_type=="static_library" and OS=="solaris"', {
|
|
'standalone_static_library': 1,
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|
}],
|
|
['OS=="openbsd"', {
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|
'cflags': [ '-I/usr/local/include' ],
|
|
'ldflags': [ '-Wl,-z,wxneeded' ],
|
|
}],
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|
],
|
|
'conditions': [
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[ 'target_arch=="ia32"', {
|
|
'cflags': [ '-m32' ],
|
|
'ldflags': [ '-m32' ],
|
|
}],
|
|
[ 'target_arch=="x32"', {
|
|
'cflags': [ '-mx32' ],
|
|
'ldflags': [ '-mx32' ],
|
|
}],
|
|
[ 'target_arch=="x64"', {
|
|
'cflags': [ '-m64' ],
|
|
'ldflags': [ '-m64' ],
|
|
}],
|
|
[ 'target_arch=="ppc" and OS!="aix"', {
|
|
'cflags': [ '-m32' ],
|
|
'ldflags': [ '-m32' ],
|
|
}],
|
|
[ 'target_arch=="ppc64" and OS!="aix"', {
|
|
'cflags': [ '-m64', '-mminimal-toc' ],
|
|
'ldflags': [ '-m64' ],
|
|
}],
|
|
[ 'target_arch=="s390x"', {
|
|
'cflags': [ '-m64', '-march=z196' ],
|
|
'ldflags': [ '-m64', '-march=z196' ],
|
|
}],
|
|
[ 'OS=="solaris"', {
|
|
'cflags': [ '-pthreads' ],
|
|
'ldflags': [ '-pthreads' ],
|
|
'cflags!': [ '-pthread' ],
|
|
'ldflags!': [ '-pthread' ],
|
|
}],
|
|
[ 'node_shared=="true"', {
|
|
'cflags': [ '-fPIC' ],
|
|
}],
|
|
],
|
|
}],
|
|
[ 'OS=="aix"', {
|
|
'variables': {
|
|
# Used to differentiate `AIX` and `OS400`(IBM i).
|
|
'aix_variant_name': '<!(uname -s)',
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|
},
|
|
'cflags': [ '-maix64', ],
|
|
'ldflags!': [ '-rdynamic', ],
|
|
'ldflags': [
|
|
'-Wl,-bbigtoc',
|
|
'-maix64',
|
|
],
|
|
'conditions': [
|
|
[ '"<(aix_variant_name)"=="OS400"', { # a.k.a. `IBM i`
|
|
'ldflags': [
|
|
'-Wl,-blibpath:/QOpenSys/pkgs/lib:/QOpenSys/usr/lib',
|
|
'-Wl,-brtl',
|
|
],
|
|
}, { # else it's `AIX`
|
|
# Disable the following compiler warning:
|
|
#
|
|
# warning: visibility attribute not supported in this
|
|
# configuration; ignored [-Wattributes]
|
|
#
|
|
# This is gcc complaining about __attribute((visibility("default"))
|
|
# in static library builds. Legitimate but harmless and it drowns
|
|
# out more relevant warnings.
|
|
'cflags': [ '-Wno-attributes' ],
|
|
'ldflags': [
|
|
'-Wl,-blibpath:/usr/lib:/lib:/opt/freeware/lib/pthread/ppc64',
|
|
],
|
|
}],
|
|
],
|
|
}],
|
|
['OS=="android"', {
|
|
'target_conditions': [
|
|
['_toolset=="target"', {
|
|
'defines': [ '_GLIBCXX_USE_C99_MATH' ],
|
|
'libraries': [ '-llog' ],
|
|
}],
|
|
['_toolset=="host"', {
|
|
'cflags': [ '-pthread' ],
|
|
'ldflags': [ '-pthread' ],
|
|
}],
|
|
],
|
|
}],
|
|
['OS=="mac"', {
|
|
'defines': ['_DARWIN_USE_64_BIT_INODE=1'],
|
|
'xcode_settings': {
|
|
'ALWAYS_SEARCH_USER_PATHS': 'NO',
|
|
'GCC_CW_ASM_SYNTAX': 'NO', # No -fasm-blocks
|
|
'GCC_DYNAMIC_NO_PIC': 'NO', # No -mdynamic-no-pic
|
|
# (Equivalent to -fPIC)
|
|
'GCC_ENABLE_CPP_EXCEPTIONS': 'NO', # -fno-exceptions
|
|
'GCC_ENABLE_CPP_RTTI': 'NO', # -fno-rtti
|
|
'GCC_ENABLE_PASCAL_STRINGS': 'NO', # No -mpascal-strings
|
|
'PREBINDING': 'NO', # No -Wl,-prebind
|
|
'MACOSX_DEPLOYMENT_TARGET': '10.13', # -mmacosx-version-min=10.13
|
|
'USE_HEADERMAP': 'NO',
|
|
'OTHER_CFLAGS': [
|
|
'-fno-strict-aliasing',
|
|
],
|
|
'WARNING_CFLAGS': [
|
|
'-Wall',
|
|
'-Wendif-labels',
|
|
'-W',
|
|
'-Wno-unused-parameter',
|
|
],
|
|
},
|
|
'target_conditions': [
|
|
['_type!="static_library"', {
|
|
'xcode_settings': {
|
|
'OTHER_LDFLAGS': [
|
|
'-Wl,-no_pie',
|
|
'-Wl,-search_paths_first',
|
|
],
|
|
},
|
|
}],
|
|
],
|
|
'conditions': [
|
|
['target_arch=="ia32"', {
|
|
'xcode_settings': {'ARCHS': ['i386']},
|
|
}],
|
|
['target_arch=="x64"', {
|
|
'xcode_settings': {'ARCHS': ['x86_64']},
|
|
}],
|
|
['target_arch=="arm64"', {
|
|
'xcode_settings': {
|
|
'ARCHS': ['arm64'],
|
|
'OTHER_LDFLAGS!': [
|
|
'-Wl,-no_pie',
|
|
],
|
|
},
|
|
}],
|
|
['clang==1', {
|
|
'xcode_settings': {
|
|
'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
|
|
'CLANG_CXX_LANGUAGE_STANDARD': 'gnu++1y', # -std=gnu++1y
|
|
'CLANG_CXX_LIBRARY': 'libc++',
|
|
},
|
|
}],
|
|
],
|
|
}],
|
|
['OS=="freebsd" and node_use_dtrace=="true"', {
|
|
'libraries': [ '-lelf' ],
|
|
}],
|
|
['OS=="freebsd"', {
|
|
'ldflags': [
|
|
'-Wl,--export-dynamic',
|
|
],
|
|
}],
|
|
# if node is built as an executable,
|
|
# the openssl mechanism for keeping itself "dload"-ed to ensure proper
|
|
# atexit cleanup does not apply
|
|
['node_shared_openssl!="true" and node_shared!="true"', {
|
|
'defines': [
|
|
# `OPENSSL_NO_PINSHARED` prevents openssl from dload
|
|
# current node executable,
|
|
# see https://github.com/nodejs/node/pull/21848
|
|
# or https://github.com/nodejs/node/issues/27925
|
|
'OPENSSL_NO_PINSHARED'
|
|
],
|
|
}],
|
|
['node_shared_openssl!="true"', {
|
|
# `OPENSSL_THREADS` is defined via GYP for openSSL for all architectures.
|
|
'defines': [
|
|
'OPENSSL_THREADS',
|
|
],
|
|
}],
|
|
['node_shared_openssl!="true" and openssl_no_asm==1', {
|
|
'defines': [
|
|
'OPENSSL_NO_ASM',
|
|
],
|
|
}],
|
|
],
|
|
}
|
|
}
|