build: add configure option to debug only Node.js part of the binary

Building Node.js with `--debug` takes a long time and generates
binaries that can be hard to work with due to their size, in
particular because debug builds of V8 are large.

Sometimes, it’s sufficient to build the Node.js parts with native
debugging options enabled. Add an option for that.

PR-URL: https://github.com/nodejs/node/pull/31644
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Rich Trott <rtrott@gmail.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/node.gypi b/node.gypi
index a83c63e23da..87bcb37fc7f 100644
--- a/node.gypi
+++ b/node.gypi
@@ -271,6 +271,16 @@
         ],
       },
     }],
+    [ 'debug_node=="true"', {
+      'cflags!': [ '-O3' ],
+      'cflags': [ '-g', '-O0' ],
+      'defines': [ 'DEBUG' ],
+      'xcode_settings': {
+        'OTHER_CFLAGS': [
+          '-g', '-O0'
+        ],
+      },
+    }],
     [ 'coverage=="true" and node_shared=="false" and OS in "mac freebsd linux"', {
       'cflags!': [ '-O3' ],
       'ldflags': [ '--coverage',