1d5dc9583SRong Xu# SPDX-License-Identifier: GPL-2.0 2d5dc9583SRong Xu 3d5dc9583SRong Xu# Enable available and selected Clang Propeller features. 4d5dc9583SRong Xuifdef CLANG_PROPELLER_PROFILE_PREFIX 5d5dc9583SRong Xu CFLAGS_PROPELLER_CLANG := -fbasic-block-sections=list=$(CLANG_PROPELLER_PROFILE_PREFIX)_cc_profile.txt -ffunction-sections 6d5dc9583SRong Xu KBUILD_LDFLAGS += --symbol-ordering-file=$(CLANG_PROPELLER_PROFILE_PREFIX)_ld_profile.txt --no-warn-symbol-ordering 7d5dc9583SRong Xuelse 8*d63b8524SRong Xu # Starting with Clang v20, the '-fbasic-block-sections=labels' option is 9*d63b8524SRong Xu # deprecated. Use the recommended '-fbasic-block-address-map' option. 10*d63b8524SRong Xu # Link: https://github.com/llvm/llvm-project/pull/110039 11*d63b8524SRong Xu ifeq ($(call clang-min-version, 200000),y) 12*d63b8524SRong Xu CFLAGS_PROPELLER_CLANG := -fbasic-block-address-map 13*d63b8524SRong Xu else 14d5dc9583SRong Xu CFLAGS_PROPELLER_CLANG := -fbasic-block-sections=labels 15d5dc9583SRong Xu endif 16*d63b8524SRong Xuendif 17d5dc9583SRong Xu 18d5dc9583SRong Xu# Propeller requires debug information to embed module names in the profiles. 19d5dc9583SRong Xu# If CONFIG_DEBUG_INFO is not enabled, set -gmlt option. Skip this for AutoFDO, 20d5dc9583SRong Xu# as the option should already be set. 21d5dc9583SRong Xuifndef CONFIG_DEBUG_INFO 22d5dc9583SRong Xu ifndef CONFIG_AUTOFDO_CLANG 23d5dc9583SRong Xu CFLAGS_PROPELLER_CLANG += -gmlt 24d5dc9583SRong Xu endif 25d5dc9583SRong Xuendif 26d5dc9583SRong Xu 27d5dc9583SRong Xuifdef CONFIG_LTO_CLANG_THIN 28d5dc9583SRong Xu ifdef CLANG_PROPELLER_PROFILE_PREFIX 29d5dc9583SRong Xu KBUILD_LDFLAGS += --lto-basic-block-sections=$(CLANG_PROPELLER_PROFILE_PREFIX)_cc_profile.txt 30d5dc9583SRong Xu else 31*d63b8524SRong Xu ifeq ($(call test-ge, $(CONFIG_LLD_VERSION), 200000),y) 32*d63b8524SRong Xu KBUILD_LDFLAGS += --lto-basic-block-address-map 33*d63b8524SRong Xu else 34d5dc9583SRong Xu KBUILD_LDFLAGS += --lto-basic-block-sections=labels 35d5dc9583SRong Xu endif 36d5dc9583SRong Xu endif 37*d63b8524SRong Xuendif 38d5dc9583SRong Xu 39d5dc9583SRong Xuexport CFLAGS_PROPELLER_CLANG 40