From 82822e450477e7e859ecde656f6e6a6e6c05e930 Mon Sep 17 00:00:00 2001
From: Richard Patel <ripatel@jumptrading.com>
Date: Sat, 16 Nov 2024 10:43:37 +0000
Subject: [PATCH] config: add extras for lld and mold

---
 config/extra/with-lld.mk  |  1 +
 config/extra/with-mold.mk | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 config/extra/with-lld.mk
 create mode 100644 config/extra/with-mold.mk

diff --git a/config/extra/with-lld.mk b/config/extra/with-lld.mk
new file mode 100644
index 0000000000..a028924676
--- /dev/null
+++ b/config/extra/with-lld.mk
@@ -0,0 +1 @@
+LDFLAGS+=-fuse-ld=lld
diff --git a/config/extra/with-mold.mk b/config/extra/with-mold.mk
new file mode 100644
index 0000000000..6d6639e790
--- /dev/null
+++ b/config/extra/with-mold.mk
@@ -0,0 +1,16 @@
+# Switches linker to 'mold'
+# https://github.com/rui314/mold
+#
+# This linker is usually much faster than the default linker when working
+# with large binaries (Rust projects, fdctl, etc.)
+
+MOLD_LDFLAGS=-fuse-ld=mold
+
+ifdef FD_USING_GCC
+ifeq ($(shell test $(FD_COMPILER_MAJOR_VERSION) -lt 12 && echo 1),1)
+# Old GCC versions don't recognize mold
+MOLD_LDFLAGS=-B$(shell which mold)
+endif
+endif
+
+LDFLAGS+=$(MOLD_LDFLAGS)