linux-imx

#!/bin/sh

# SPDX-License-Identifier: GPL-2.0

#

# link vmlinux

#

# vmlinux is linked from the objects selected by $(KBUILD_VMLINUX_OBJS) and

# $(KBUILD_VMLINUX_LIBS). Most are built-in.a files from top-level directories

# in the kernel tree, others are specified in arch/$(ARCH)/Makefile.

# $(KBUILD_VMLINUX_LIBS) are archives which are linked conditionally

# (not within --whole-archive), and do not require symbol indexes added.

#

# vmlinux

#   ^

#   |

#   +--< $(KBUILD_VMLINUX_OBJS)

#   |    +--< init/built-in.a drivers/built-in.a mm/built-in.a + more

#   |

#   +--< $(KBUILD_VMLINUX_LIBS)

#   |    +--< lib/lib.a + more

#   |

#   +-< ${kallsymso} (see description in KALLSYMS section)

#

# vmlinux version (uname -v) cannot be updated during normal

# descending-into-subdirs phase since we do not yet know if we need to

# update vmlinux.

# Therefore this step is delayed until just before final link of vmlinux.

#

# System.map is generated to document addresses of all kernel symbols

​

# Error out on error

set -e

​

# Nice output in kbuild format

# Will be supressed by "make -s"

info()

{

    if [ "${quiet}" != "silent_" ]; then

        printf "  %-7s %s\n" ${1} ${2}

    fi

}

​

# Link of vmlinux.o used for section mismatch analysis

# ${1} output file

modpost_link()

{

    local objects

​

    objects="--whole-archive                \

        ${KBUILD_VMLINUX_OBJS}              \

        --no-whole-archive              \

        --start-group                   \

        ${KBUILD_VMLINUX_LIBS}              \

        --end-group"

​

    ${LD} ${KBUILD_LDFLAGS} -r -o ${1} ${objects}

}

​

# Link of vmlinux

# ${1} - optional extra .o files

# ${2} - output file

vmlinux_link()

{

    local lds="${objtree}/${KBUILD_LDS}"