diff options
| author | Brian Johannesmeyer <bjohannesmeyer@gmail.com> | 2024-04-15 16:55:37 +0200 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@kernel.org> | 2024-07-02 23:38:37 -0700 |
| commit | 406b5c12aad8110e1b1f9355f176cac43cd1fecb (patch) | |
| tree | ed656bd34a4aa2460f27c3fe549b72110c5b1e89 /scripts/faddr2line | |
| parent | e36b69e918112430ee53e24238bb87f5146f9acf (diff) | |
| download | lwn-406b5c12aad8110e1b1f9355f176cac43cd1fecb.tar.gz lwn-406b5c12aad8110e1b1f9355f176cac43cd1fecb.zip | |
scripts/faddr2line: Remove call to addr2line from find_dir_prefix()
Use the single long-running faddr2line process from find_dir_prefix().
Signed-off-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Link: https://lore.kernel.org/r/20240415145538.1938745-7-bjohannesmeyer@gmail.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Diffstat (limited to 'scripts/faddr2line')
| -rwxr-xr-x | scripts/faddr2line | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/scripts/faddr2line b/scripts/faddr2line index 48fc8cfc80df..1fa6beef9f97 100755 --- a/scripts/faddr2line +++ b/scripts/faddr2line @@ -85,15 +85,17 @@ command -v ${ADDR2LINE} >/dev/null 2>&1 || die "${ADDR2LINE} isn't installed" # init/main.c! This only works for vmlinux. Otherwise it falls back to # printing the absolute path. find_dir_prefix() { - local objfile=$1 - local start_kernel_addr=$(echo "${ELF_SYMS}" | sed 's/\[.*\]//' | ${AWK} '$8 == "start_kernel" {printf "0x%s", $2}') [[ -z $start_kernel_addr ]] && return - local file_line=$(${ADDR2LINE} -e $objfile $start_kernel_addr) - [[ -z $file_line ]] && return + run_addr2line ${start_kernel_addr} "" + [[ -z $ADDR2LINE_OUT ]] && return + local file_line=${ADDR2LINE_OUT#* at } + if [[ -z $file_line ]] || [[ $file_line = $ADDR2LINE_OUT ]]; then + return + fi local prefix=${file_line%init/main.c:*} if [[ -z $prefix ]] || [[ $prefix = $file_line ]]; then return @@ -350,7 +352,7 @@ echo "${ELF_SECHEADERS}" | ${GREP} -q '\.debug_info' || die "CONFIG_DEBUG_INFO n init_addr2line $objfile DIR_PREFIX=supercalifragilisticexpialidocious -find_dir_prefix $objfile +find_dir_prefix FIRST=1 while [[ $# -gt 0 ]]; do |