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Subject[PATCH] scripts/faddr2line: extend usage on generic arch
fadd2line script should use the binary tool
used for the target system.

Signed-off-by: Liu Changcheng <changcheng.liu@intel.com>

diff --git a/scripts/faddr2line b/scripts/faddr2line
index 1f5ce95..39e07d8 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -44,9 +44,16 @@
set -o errexit
set -o nounset

+READELF="${CROSS_COMPILE}readelf"
+ADDR2LINE="${CROSS_COMPILE}addr2line"
+SIZE="${CROSS_COMPILE}size"
+NM="${CROSS_COMPILE}nm"
+
command -v awk >/dev/null 2>&1 || die "awk isn't installed"
-command -v readelf >/dev/null 2>&1 || die "readelf isn't installed"
-command -v addr2line >/dev/null 2>&1 || die "addr2line isn't installed"
+command -v ${READELF} >/dev/null 2>&1 || die "readelf isn't installed"
+command -v ${ADDR2LINE} >/dev/null 2>&1 || die "addr2line isn't installed"
+command -v ${SIZE} >/dev/null 2>&1 || die "size isn't installed"
+command -v ${NM} >/dev/null 2>&1 || die "nm isn't installed"

usage() {
echo "usage: faddr2line <object file> <func+offset> <func+offset>..." >&2
@@ -69,10 +76,10 @@ die() {
find_dir_prefix() {
local objfile=$1

- local start_kernel_addr=$(readelf -sW $objfile | awk '$8 == "start_kernel" {printf "0x%s", $2}')
+ local start_kernel_addr=$(${READELF} -sW $objfile | awk '$8 == "start_kernel" {printf "0x%s", $2}')
[[ -z $start_kernel_addr ]] && return

- local file_line=$(addr2line -e $objfile $start_kernel_addr)
+ local file_line=$(${ADDR2LINE} -e $objfile $start_kernel_addr)
[[ -z $file_line ]] && return

local prefix=${file_line%init/main.c:*}
@@ -104,7 +111,7 @@ __faddr2line() {

# Go through each of the object's symbols which match the func name.
# In rare cases there might be duplicates.
- file_end=$(size -Ax $objfile | awk '$1 == ".text" {print $2}')
+ file_end=$(${SIZE} -Ax $objfile | awk '$1 == ".text" {print $2}')
while read symbol; do
local fields=($symbol)
local sym_base=0x${fields[0]}
@@ -156,10 +163,10 @@ __faddr2line() {

# pass real address to addr2line
echo "$func+$offset/$sym_size:"
- addr2line -fpie $objfile $addr | sed "s; $dir_prefix\(\./\)*; ;"
+ ${ADDR2LINE} -fpie $objfile $addr | sed "s; $dir_prefix\(\./\)*; ;"
DONE=1

- done < <(nm -n $objfile | awk -v fn=$func -v end=$file_end '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, "0x"$1 } END {if (found == 1) print line, end; }')
+ done < <(${NM} -n $objfile | awk -v fn=$func -v end=$file_end '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, "0x"$1 } END {if (found == 1) print line, end; }')
}

[[ $# -lt 2 ]] && usage
--
2.7.4
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