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