arch/sparc/Makefile

Source file repositories/reference/linux-study-clean/arch/sparc/Makefile

File Facts

System
Linux kernel
Corpus path
arch/sparc/Makefile
Extension
[no extension]
Size
2596 bytes
Lines
94
Domain
Architecture Layer
Bucket
arch/sparc
Inferred role
Architecture Layer: build/configuration rule
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: GPL-2.0
#
# sparc/Makefile
#
# Makefile for the architecture dependent flags and dependencies on the
# Sparc and sparc64.
#
# Copyright (C) 1994,1996,1998 David S. Miller (davem@caip.rutgers.edu)
# Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)

# We are not yet configured - so test on arch
ifeq ($(ARCH),sparc64)
        KBUILD_DEFCONFIG := sparc64_defconfig
else
        KBUILD_DEFCONFIG := sparc32_defconfig
endif

ifeq ($(CONFIG_SPARC32),y)
#####
# sparc32
#

CHECKFLAGS     += -D__sparc__
KBUILD_LDFLAGS := -m elf32_sparc
export BITS    := 32
UTS_MACHINE    := sparc

# We are adding -Wa,-Av8 to KBUILD_CFLAGS to deal with a specs bug in some
# versions of gcc.  Some gcc versions won't pass -Av8 to binutils when you
# give -mcpu=v8.  This silently worked with older bintutils versions but
# does not any more.
KBUILD_CFLAGS  += -m32 -mcpu=v8 -pipe -mno-fpu $(call cc-option,-fcall-used-g5) $(call cc-option,-fcall-used-g7)
KBUILD_CFLAGS  += -Wa,-Av8

KBUILD_AFLAGS  += -m32 -Wa,-Av8

else
#####
# sparc64
#

CHECKFLAGS    += -D__sparc__ -D__sparc_v9__ -D__arch64__
KBUILD_LDFLAGS := -m elf64_sparc
export BITS   := 64
UTS_MACHINE   := sparc64

KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow
KBUILD_CFLAGS += -ffixed-g4 -ffixed-g5 $(call cc-option,-fcall-used-g7) -Wno-sign-compare
KBUILD_CFLAGS += -Wa,--undeclared-regs
KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3)
KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs

ifeq ($(CONFIG_MCOUNT),y)
  KBUILD_CFLAGS += -pg
endif

endif

libs-y                 += arch/sparc/prom/
libs-y                 += arch/sparc/lib/

drivers-$(CONFIG_PM)    += arch/sparc/power/
drivers-$(CONFIG_VIDEO) += arch/sparc/video/

boot := arch/sparc/boot

# Default target
all: zImage

image zImage uImage tftpboot.img vmlinux.aout: vmlinux

Annotation

Implementation Notes