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-rwxr-xr-xscripts/faddr2line33
1 files changed, 21 insertions, 12 deletions
diff --git a/scripts/faddr2line b/scripts/faddr2line
index 450b33257339..29df825d375c 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -105,9 +105,18 @@ __faddr2line() {
# In rare cases there might be duplicates.
while read symbol; do
local fields=($symbol)
- local sym_base=0x${fields[1]}
- local sym_size=${fields[2]}
- local sym_type=${fields[3]}
+ local sym_base=0x${fields[0]}
+ local sym_type=${fields[1]}
+ local sym_end=0x${fields[3]}
+
+ # calculate the size
+ local sym_size=$(($sym_end - $sym_base))
+ if [[ -z $sym_size ]] || [[ $sym_size -le 0 ]]; then
+ warn "bad symbol size: base: $sym_base end: $sym_end"
+ DONE=1
+ return
+ fi
+ sym_size=0x$(printf %x $sym_size)
# calculate the address
local addr=$(($sym_base + $offset))
@@ -116,26 +125,26 @@ __faddr2line() {
DONE=1
return
fi
- local hexaddr=0x$(printf %x $addr)
+ addr=0x$(printf %x $addr)
# weed out non-function symbols
- if [[ $sym_type != "FUNC" ]]; then
+ if [[ $sym_type != t ]] && [[ $sym_type != T ]]; then
[[ $print_warnings = 1 ]] &&
- echo "skipping $func address at $hexaddr due to non-function symbol"
+ echo "skipping $func address at $addr due to non-function symbol of type '$sym_type'"
continue
fi
# if the user provided a size, make sure it matches the symbol's size
if [[ -n $size ]] && [[ $size -ne $sym_size ]]; then
[[ $print_warnings = 1 ]] &&
- echo "skipping $func address at $hexaddr due to size mismatch ($size != $sym_size)"
+ echo "skipping $func address at $addr due to size mismatch ($size != $sym_size)"
continue;
fi
# make sure the provided offset is within the symbol's range
if [[ $offset -gt $sym_size ]]; then
[[ $print_warnings = 1 ]] &&
- echo "skipping $func address at $hexaddr due to size mismatch ($offset > $sym_size)"
+ echo "skipping $func address at $addr due to size mismatch ($offset > $sym_size)"
continue
fi
@@ -143,12 +152,12 @@ __faddr2line() {
[[ $FIRST = 0 ]] && echo
FIRST=0
- local hexsize=0x$(printf %x $sym_size)
- echo "$func+$offset/$hexsize:"
- addr2line -fpie $objfile $hexaddr | sed "s; $dir_prefix\(\./\)*; ;"
+ # pass real address to addr2line
+ echo "$func+$offset/$sym_size:"
+ addr2line -fpie $objfile $addr | sed "s; $dir_prefix\(\./\)*; ;"
DONE=1
- done < <(readelf -sW $objfile | awk -v f=$func '$8 == f {print}')
+ done < <(nm -n $objfile | awk -v fn=$func '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, $1 }')
}
[[ $# -lt 2 ]] && usage