build: move optimizing link directives to node.exe target

* ASCIIbetize directives
* Merge duplicate directives from 'conditions'

PR-URL: https://github.com/nodejs/node/pull/25931
Reviewed-By: João Reis <reis@janeasystems.com>

1 files changed, 40 insertions, 2 deletions

diff --git a/node.gyp b/node.gyp
index da3e5ee845..d0a715b91e 100644
--- a/node.gyp
+++ b/node.gyp
@@ -266,6 +266,16 @@
       ],
       'dependencies': [ 'deps/histogram/histogram.gyp:histogram' ],
 
+      'msvs_settings': {
+        'VCLinkerTool': {
+          'GenerateMapFile': 'true', # /MAP
+          'MapExports': 'true', # /MAPINFO:EXPORTS
+          'RandomizedBaseAddress': 2, # enable ASLR
+          'DataExecutionPrevention': 2, # enable DEP
+          'AllowIsolation': 'true',
+        },
+      },
+
       # - "C4244: conversion from 'type1' to 'type2', possible loss of data"
       #   Ususaly safe. Disable for `dep`, enable for `src`
       'msvs_disabled_warnings!': [4244],
@@ -281,8 +291,7 @@
         }, {
           'dependencies': [ '<(node_lib_target_name)' ],
         }],
-        [ 'node_intermediate_lib_type=="static_library" and '
-            'node_shared=="false"', {
+        [ 'node_intermediate_lib_type=="static_library" and node_shared=="false"', {
           'xcode_settings': {
             'OTHER_LDFLAGS': [
               '-Wl,-force_load,<(PRODUCT_DIR)/<(STATIC_LIB_PREFIX)'
@@ -348,6 +357,35 @@
             }],
           ],
         }],
+        ['node_with_ltcg=="true"', {
+          'msvs_settings': {
+            'VCCLCompilerTool': {
+              'WholeProgramOptimization': 'true'   # /GL, whole program optimization, needed for LTCG
+            },
+            'VCLibrarianTool': {
+              'AdditionalOptions': [
+                '/LTCG:INCREMENTAL',               # link time code generation
+              ],
+            },
+            'VCLinkerTool': {
+              'OptimizeReferences': 2,             # /OPT:REF
+              'EnableCOMDATFolding': 2,            # /OPT:ICF
+              'LinkIncremental': 1,                # disable incremental linking
+              'AdditionalOptions': [
+                '/LTCG:INCREMENTAL',               # incremental link-time code generation
+              ],
+            }
+          }
+        }, {
+          'msvs_settings': {
+            'VCCLCompilerTool': {
+              'WholeProgramOptimization': 'false'
+            },
+            'VCLinkerTool': {
+              'LinkIncremental': 2                 # enable incremental linking
+            },
+          },
+        }]
       ],
     }, # node_core_target_name
     {