diff options
Diffstat (limited to 'scripts/build/environments/kernel.mk')
| -rw-r--r-- | scripts/build/environments/kernel.mk | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/scripts/build/environments/kernel.mk b/scripts/build/environments/kernel.mk new file mode 100644 index 0000000..088cdf0 --- /dev/null +++ b/scripts/build/environments/kernel.mk @@ -0,0 +1,28 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +WARNINGS ?= -Wall -Wextra -Wno-unused-parameter + +ifeq ($(BUILD_VARIANT),release) +KERNEL_OPT_FLAGS := -O2 -g0 -DNDEBUG +else +KERNEL_OPT_FLAGS := -O2 -g +endif + +CFLAGS := $(WARNINGS) $(KERNEL_OPT_FLAGS) \ + -ffreestanding -nostdlib \ + -mcmodel=medany -fPIE -MMD -MP \ + $(TOOLCHAIN_CFLAGS) $(KCPPFLAGS) $(INCLUDES) \ + -I$(BUILD)/generated + +CFLAGS_LIBC := $(CFLAGS) -std=gnu23 -Iinclude/libc-shim \ + -Wno-parentheses -Wno-sign-compare + +CXXFLAGS := $(CFLAGS) $(TOOLCHAIN_CXXFLAGS) -std=c++23 \ + -fno-exceptions -fno-rtti -fno-use-cxa-atexit \ + -fno-threadsafe-statics + +# Pre-MMU assembly must never use GOT-indirect addressing. +ASFLAGS := $(filter-out -fPIE,$(CFLAGS)) -fno-pie + +LDFLAGS := -nostdlib -shared -Bsymbolic -z notext -z norelro \ + --no-dynamic-linker |