linux-kernel - [PATCH 4/7] scripts/faddr2line: Pass --addresses argument to addr2line

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Date: Mon, 11 Mar 2024 21:40:16 +0100
From: Brian Johannesmeyer <bjohannesmeyer@...il.com>
To: Josh Poimboeuf <jpoimboe@...nel.org>,
	linux-kernel@...r.kernel.org,
	Brian Johannesmeyer <bjohannesmeyer@...il.com>
Subject: [PATCH 4/7] scripts/faddr2line: Pass --addresses argument to addr2line

In preparation for identifying an addr2line sentinel. See previous work
[0], which applies a similar change to perf.

[0] commit 8dc26b6f718a ("perf srcline: Make sentinel reading for binutils
addr2line more robust")

Signed-off-by: Brian Johannesmeyer <bjohannesmeyer@...il.com>
---
 scripts/faddr2line | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/faddr2line b/scripts/faddr2line
index bb3b5f03f4ea..820680c59a39 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -260,9 +260,12 @@ __faddr2line() {
 
 		# Pass section address to addr2line and strip absolute paths
 		# from the output:
-		local args="--functions --pretty-print --inlines --exe=$objfile"
+		local args="--functions --pretty-print --inlines --addresses --exe=$objfile"
 		[[ $IS_VMLINUX = 0 ]] && args="$args --section=$sec_name"
-		local output=$(${ADDR2LINE} $args $addr | sed "s; $dir_prefix\(\./\)*; ;")
+		local output_with_addr=$(${ADDR2LINE} $args $addr | sed "s; $dir_prefix\(\./\)*; ;")
+		[[ -z $output_with_addr ]] && continue
+
+		local output=$(echo "${output_with_addr}" | sed 's/^0x[0-9a-fA-F]*: //')
 		[[ -z $output ]] && continue
 
 		# Default output (non --list):
-- 
2.34.1