tools/sched_ext/Makefile

Source file repositories/reference/linux-study-clean/tools/sched_ext/Makefile

File Facts

System
Linux kernel
Corpus path
tools/sched_ext/Makefile
Extension
[no extension]
Size
8985 bytes
Lines
262
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: build/configuration rule
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2022 Meta Platforms, Inc. and affiliates.
include ../build/Build.include
include ../scripts/Makefile.arch
include ../scripts/Makefile.include

all: all_targets

ifneq ($(LLVM),)
ifneq ($(filter %/,$(LLVM)),)
LLVM_PREFIX := $(LLVM)
else ifneq ($(filter -%,$(LLVM)),)
LLVM_SUFFIX := $(LLVM)
endif

CLANG_TARGET_FLAGS_arm          := arm-linux-gnueabi
CLANG_TARGET_FLAGS_arm64        := aarch64-linux-gnu
CLANG_TARGET_FLAGS_hexagon      := hexagon-linux-musl
CLANG_TARGET_FLAGS_m68k         := m68k-linux-gnu
CLANG_TARGET_FLAGS_mips         := mipsel-linux-gnu
CLANG_TARGET_FLAGS_powerpc      := powerpc64le-linux-gnu
CLANG_TARGET_FLAGS_riscv        := riscv64-linux-gnu
CLANG_TARGET_FLAGS_s390         := s390x-linux-gnu
CLANG_TARGET_FLAGS_x86          := x86_64-linux-gnu
CLANG_TARGET_FLAGS              := $(CLANG_TARGET_FLAGS_$(ARCH))

ifeq ($(CROSS_COMPILE),)
ifeq ($(CLANG_TARGET_FLAGS),)
$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
else
CLANG_FLAGS     += --target=$(CLANG_TARGET_FLAGS)
endif # CLANG_TARGET_FLAGS
else
CLANG_FLAGS     += --target=$(notdir $(CROSS_COMPILE:%-=%))
endif # CROSS_COMPILE

CC := $(LLVM_PREFIX)clang$(LLVM_SUFFIX) $(CLANG_FLAGS) -fintegrated-as
else
CC := $(CROSS_COMPILE)gcc
endif # LLVM

CURDIR := $(abspath .)
TOOLSDIR := $(abspath ..)
LIBDIR := $(TOOLSDIR)/lib
BPFDIR := $(LIBDIR)/bpf
TOOLSINCDIR := $(TOOLSDIR)/include
BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
APIDIR := $(TOOLSINCDIR)/uapi
GENDIR := $(abspath ../../include/generated)
GENHDR := $(GENDIR)/autoconf.h

ifeq ($(O),)
OUTPUT_DIR := $(CURDIR)/build
else
OUTPUT_DIR := $(O)/build
endif # O
OBJ_DIR := $(OUTPUT_DIR)/obj
INCLUDE_DIR := $(OUTPUT_DIR)/include
BPFOBJ_DIR := $(OBJ_DIR)/libbpf
SCXOBJ_DIR := $(OBJ_DIR)/sched_ext
BINDIR := $(OUTPUT_DIR)/bin
BPFOBJ := $(BPFOBJ_DIR)/libbpf.a
ifneq ($(CROSS_COMPILE),)
HOST_BUILD_DIR		:= $(OBJ_DIR)/host/obj
HOST_OUTPUT_DIR	:= $(OBJ_DIR)/host
HOST_INCLUDE_DIR	:= $(HOST_OUTPUT_DIR)/include
else
HOST_BUILD_DIR		:= $(OBJ_DIR)
HOST_OUTPUT_DIR	:= $(OUTPUT_DIR)
HOST_INCLUDE_DIR	:= $(INCLUDE_DIR)

Annotation

Implementation Notes