From 48ef95c24e9ac3d11200b61af617a01b10b507d1 Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Fri, 10 Jul 2026 23:20:03 +0800
Subject: build: introduce declarative non-recursive build graph

---
 scripts/build/environments/phys.mk | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 scripts/build/environments/phys.mk

(limited to 'scripts/build/environments/phys.mk')

diff --git a/scripts/build/environments/phys.mk b/scripts/build/environments/phys.mk
new file mode 100644
index 0000000..6a11c12
--- /dev/null
+++ b/scripts/build/environments/phys.mk
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+# Early physical-address execution environment. It deliberately has no heap,
+# exceptions, RTTI, thread-safe statics, or PIE/GOT assumptions.
+PHYS_CFLAGS := $(WARNINGS) -Os -g -ffreestanding -nostdlib \
+               -fno-pie -fno-stack-protector $(TOOLCHAIN_CFLAGS) \
+               $(KCPPFLAGS) $(INCLUDES) -I$(BUILD)/generated
+PHYS_CXXFLAGS := $(PHYS_CFLAGS) $(TOOLCHAIN_CXXFLAGS) -std=c++23 \
+                 -fno-exceptions -fno-rtti -fno-use-cxa-atexit \
+                 -fno-threadsafe-statics
+PHYS_ASFLAGS := $(PHYS_CFLAGS)
+
-- 
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