SERVER-68475 use debug-types-section to reduce debug info

(cherry picked from commit b41c85c2e798f11db81b6c0ba3ca400bbf01f063)

1 files changed, 10 insertions, 3 deletions

diff --git a/SConstruct b/SConstruct
index 1a611f4daab..a249b844729 100755
--- a/SConstruct
+++ b/SConstruct
@@ -110,9 +110,9 @@ add_option(
     choices=list(BUILD_PROFILES.keys()),
     default='default',
     type='choice',
-    help='''Short hand for common build options. These profiles are well supported by SDP and are 
-    kept up to date. Unless you need something specific, it is recommended that you only build with 
-    these. san is the recommeneded profile since it exposes bugs before they are found in patch 
+    help='''Short hand for common build options. These profiles are well supported by SDP and are
+    kept up to date. Unless you need something specific, it is recommended that you only build with
+    these. san is the recommeneded profile since it exposes bugs before they are found in patch
     builds. Check out site_scons/mongo/build_profiles.py to see each profile.''',
 )
 
@@ -3752,6 +3752,13 @@ def doConfigure(myenv):
         if link_model.startswith("dynamic"):
             AddToLINKFLAGSIfSupported(myenv, '-Wl,--gdb-index')
 
+        if link_model != 'dynamic':
+            # This will create an extra section where debug types can be referred from,
+            # reducing other section sizes. This helps most with big static links as there
+            # will be lots of duplicate debug type info.
+            myenv.AddToCCFLAGSIfSupported('-fdebug-types-section')
+            myenv.AddToLINKFLAGSIfSupported('-fdebug-types-section')
+
         # Our build is already parallel.
         AddToLINKFLAGSIfSupported(myenv, '-Wl,--no-threads')