diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index 915775eb2921..2438a9faf3f1 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -60,6 +60,7 @@ modpost_link() # ${2} - output file vmlinux_link() { + info LD ${2} local lds="${objtree}/${KBUILD_LDS}" local objects @@ -138,6 +139,18 @@ kallsyms() ${CC} ${aflags} -c -o ${2} ${afile} } +# Perform one step in kallsyms generation, including temporary linking of +# vmlinux. +kallsyms_step() +{ + kallsymso_prev=${kallsymso} + kallsymso=.tmp_kallsyms${1}.o + kallsyms_vmlinux=.tmp_vmlinux${1} + + vmlinux_link "${kallsymso_prev}" ${kallsyms_vmlinux} + kallsyms ${kallsyms_vmlinux} ${kallsymso} +} + # Create map file with all symbols from ${1} # See mksymap for additional details mksysmap() @@ -216,6 +229,7 @@ info MODINFO modules.builtin.modinfo ${OBJCOPY} -j .modinfo -O binary vmlinux.o modules.builtin.modinfo kallsymso="" +kallsymso_prev="" kallsyms_vmlinux="" if [ -n "${CONFIG_KALLSYMS}" ]; then @@ -242,32 +256,18 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then # a) Verify that the System.map from vmlinux matches the map from # ${kallsymso}. - kallsymso=.tmp_kallsyms2.o - kallsyms_vmlinux=.tmp_vmlinux2 - - # step 1 - vmlinux_link "" .tmp_vmlinux1 - kallsyms .tmp_vmlinux1 .tmp_kallsyms1.o - - # step 2 - vmlinux_link .tmp_kallsyms1.o .tmp_vmlinux2 - kallsyms .tmp_vmlinux2 .tmp_kallsyms2.o + kallsyms_step 1 + kallsyms_step 2 # step 3 - size1=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" .tmp_kallsyms1.o) - size2=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" .tmp_kallsyms2.o) + size1=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" ${kallsymso_prev}) + size2=$(${CONFIG_SHELL} "${srctree}/scripts/file-size.sh" ${kallsymso}) if [ $size1 -ne $size2 ] || [ -n "${KALLSYMS_EXTRA_PASS}" ]; then - kallsymso=.tmp_kallsyms3.o - kallsyms_vmlinux=.tmp_vmlinux3 - - vmlinux_link .tmp_kallsyms2.o .tmp_vmlinux3 - - kallsyms .tmp_vmlinux3 .tmp_kallsyms3.o + kallsyms_step 3 fi fi -info LD vmlinux vmlinux_link "${kallsymso}" vmlinux if [ -n "${CONFIG_DEBUG_INFO_BTF}" ]; then