Received-SPF: pass (google.com: domain of linux-kernel+bounces-99527-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:45d1:ec00::1 as permitted sender) client-ip=2604:1380:45d1:ec00::1;
From: Brian Johannesmeyer <bjohannesmeyer@gmail.com>
To: Josh Poimboeuf <jpoimboe@kernel.org>,
	linux-kernel@vger.kernel.org,
	Brian Johannesmeyer <bjohannesmeyer@gmail.com>
Subject: [PATCH 7/7] scripts/faddr2line: Check only two symbols when calculating symbol size
Date: Mon, 11 Mar 2024 21:40:19 +0100
Message-Id: <20240311204019.1183634-8-bjohannesmeyer@gmail.com>
In-Reply-To: <20240311204019.1183634-1-bjohannesmeyer@gmail.com>
References: <20240311204019.1183634-1-bjohannesmeyer@gmail.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

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>
---
 scripts/faddr2line | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/faddr2line b/scripts/faddr2line
index 1fa6beef9f97..70d5a4602a92 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 " ${sym_name}$")
 
 		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"
-- 
2.34.1