forked from Minki/linux
6520fe5564
A new option is added to the relocs tool called '--realmode'. This option causes the generation of 16-bit segment relocations and 32-bit linear relocations for the real-mode code. When the real-mode code is moved to the low-memory during kernel initialization, these relocation entries can be used to relocate the code properly. In the assembly code 16-bit segment relocations must be relative to the 'real_mode_seg' absolute symbol. Linear relocations must be relative to a symbol prefixed with 'pa_'. 16-bit segment relocation is used to load cs:ip in 16-bit code. Linear relocations are used in the 32-bit code for relocatable data references. They are declared in the linker script of the real-mode code. The relocs tool is moved to arch/x86/tools/relocs.c, and added new target archscripts that can be used to build scripts needed building an architecture. be compiled before building the arch/x86 tree. [ hpa: accelerating this because it detects invalid absolute relocations, a serious bug in binutils 2.22.52.0.x which currently produces bad kernels. ] Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1336501366-28617-2-git-send-email-jarkko.sakkinen@intel.com Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: <stable@vger.kernel.org>
38 lines
1.2 KiB
Makefile
38 lines
1.2 KiB
Makefile
###
|
|
# scripts contains sources for various helper programs used throughout
|
|
# the kernel for the build process.
|
|
# ---------------------------------------------------------------------------
|
|
# kallsyms: Find all symbols in vmlinux
|
|
# pnmttologo: Convert pnm files to logo files
|
|
# conmakehash: Create chartable
|
|
# conmakehash: Create arrays for initializing the kernel console tables
|
|
# docproc: Used in Documentation/DocBook
|
|
|
|
HOST_EXTRACFLAGS += -I$(srctree)/tools/include
|
|
|
|
hostprogs-$(CONFIG_KALLSYMS) += kallsyms
|
|
hostprogs-$(CONFIG_LOGO) += pnmtologo
|
|
hostprogs-$(CONFIG_VT) += conmakehash
|
|
hostprogs-$(CONFIG_IKCONFIG) += bin2c
|
|
hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount
|
|
|
|
always := $(hostprogs-y) $(hostprogs-m)
|
|
|
|
# The following hostprogs-y programs are only build on demand
|
|
hostprogs-y += unifdef docproc
|
|
|
|
# These targets are used internally to avoid "is up to date" messages
|
|
PHONY += build_unifdef
|
|
build_unifdef: scripts/unifdef FORCE
|
|
@:
|
|
build_docproc: scripts/docproc FORCE
|
|
@:
|
|
|
|
subdir-$(CONFIG_MODVERSIONS) += genksyms
|
|
subdir-y += mod
|
|
subdir-$(CONFIG_SECURITY_SELINUX) += selinux
|
|
subdir-$(CONFIG_DTC) += dtc
|
|
|
|
# Let clean descend into subdirs
|
|
subdir- += basic kconfig package selinux
|