arch/alpha/Makefile

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

File Facts

System
Linux kernel
Corpus path
arch/alpha/Makefile
Extension
[no extension]
Size
1853 bytes
Lines
61
Domain
Architecture Layer
Bucket
arch/alpha
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

#
# alpha/Makefile
#
# This file is subject to the terms and conditions of the GNU General Public
# License.  See the file "COPYING" in the main directory of this archive
# for more details.
#
# Copyright (C) 1994 by Linus Torvalds
#

NM := $(NM) -B

LDFLAGS_vmlinux	:= -static -N #-relax
CHECKFLAGS	+= -D__alpha__
cflags-y	:= -pipe -mno-fp-regs -ffixed-8
cflags-y	+= $(call cc-option, -fno-jump-tables)

cpuflags-$(CONFIG_ALPHA_EV56)		:= -mcpu=ev56
cpuflags-$(CONFIG_ALPHA_POLARIS)	:= -mcpu=pca56
cpuflags-$(CONFIG_ALPHA_SX164)		:= -mcpu=pca56
cpuflags-$(CONFIG_ALPHA_EV6)		:= -mcpu=ev6
cpuflags-$(CONFIG_ALPHA_EV67)		:= -mcpu=ev67
# If GENERIC, make sure to turn off any instruction set extensions that
# the host compiler might have on by default.
cpuflags-$(CONFIG_ALPHA_GENERIC)	:= -mcpu=ev56 -mtune=ev6

cflags-y				+= $(cpuflags-y)


# For TSUNAMI, we must have the assembler not emulate our instructions.
# The same is true for IRONGATE, POLARIS, PYXIS.
# BWX is most important, but we don't really want any emulation ever.
KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6

libs-y				+= arch/alpha/lib/

# export what is needed by arch/alpha/boot/Makefile
LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
export LIBS_Y

boot := arch/alpha/boot

#Default target when executing make with no arguments
all boot: $(boot)/vmlinux.gz

$(boot)/vmlinux.gz: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) $@

bootimage bootpfile bootpzfile: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@

archheaders:
	$(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all

define archhelp
  echo '* boot		- Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
  echo '  bootimage	- SRM bootable image (arch/alpha/boot/bootimage)'
  echo '  bootpfile	- BOOTP bootable image (arch/alpha/boot/bootpfile)'
  echo '  bootpzfile	- compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
endef

Annotation

Implementation Notes