diff options
Diffstat (limited to 'scripts/link-vmlinux.sh')
| -rwxr-xr-x | scripts/link-vmlinux.sh | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index dc0e8c5a1402..e3c06b9482a2 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -35,7 +35,7 @@ set -e info() { if [ "${quiet}" != "silent_" ]; then - printf " %-7s %s\n" ${1} ${2} + printf " %-7s %s\n" "${1}" "${2}" fi } @@ -91,6 +91,25 @@ vmlinux_link() fi } +# generate .BTF typeinfo from DWARF debuginfo +gen_btf() +{ + local pahole_ver; + + if ! [ -x "$(command -v ${PAHOLE})" ]; then + info "BTF" "${1}: pahole (${PAHOLE}) is not available" + return 0 + fi + + pahole_ver=$(${PAHOLE} --version | sed -E 's/v([0-9]+)\.([0-9]+)/\1\2/') + if [ "${pahole_ver}" -lt "113" ]; then + info "BTF" "${1}: pahole version $(${PAHOLE} --version) is too old, need at least v1.13" + return 0 + fi + + info "BTF" ${1} + LLVM_OBJCOPY=${OBJCOPY} ${PAHOLE} -J ${1} +} # Create ${2} .o file with all symbols from the ${1} object file kallsyms() @@ -248,6 +267,10 @@ fi info LD vmlinux vmlinux_link "${kallsymso}" vmlinux +if [ -n "${CONFIG_DEBUG_INFO_BTF}" ]; then + gen_btf vmlinux +fi + if [ -n "${CONFIG_BUILDTIME_EXTABLE_SORT}" ]; then info SORTEX vmlinux sortextable vmlinux |