From: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Date: Mon, 15 Apr 2024 14:55:38 +0000 (+0200)
Subject: scripts/faddr2line: Check only two symbols when calculating symbol size
X-Git-Tag: v6.11-rc1~170^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c02904f05ff805d6c0631634d5751ebd338f75ec;p=thirdparty%2Fkernel%2Flinux.git

scripts/faddr2line: Check only two symbols when calculating symbol size

Rather than looping through each symbol in a particular section to
calculate a symbol's size, grep for the symbol and its immediate
successor, and only use those two symbols.

Signed-off-by: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Link: https://lore.kernel.org/r/20240415145538.1938745-8-bjohannesmeyer@gmail.com
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---

diff --git a/scripts/faddr2line b/scripts/faddr2line
index 1fa6beef9f978..fe0cc45f03be1 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -252,7 +252,7 @@ __faddr2line() {
 				found=2
 				break
 			fi
-		done < <(echo "${ELF_SYMS}" | sed 's/\[.*\]//' | ${AWK} -v sec=$sym_sec '$7 == sec' | sort --key=2)
+		done < <(echo "${ELF_SYMS}" | sed 's/\[.*\]//' | ${AWK} -v sec=$sym_sec '$7 == sec' | sort --key=2 | ${GREP} -A1 --no-group-separator " ${sym_name}$")
 
 		if [[ $found = 0 ]]; then
 			warn "can't find symbol: sym_name: $sym_name sym_sec: $sym_sec sym_addr: $sym_addr sym_elf_size: $sym_elf_size"