From 3cbad8287aa0ed72e07df1130ce2ae490642e63a Mon Sep 17 00:00:00 2001
From: Alex Richardson <arichardson@FreeBSD.org>
Date: Tue, 11 May 2021 10:52:56 +0100
Subject: [PATCH] truss: Add missing underscore to compat_prefix for FreeBSD32

I accidentally dropped this in the final version of D27625, so it didn't
actually work as intended. I found this while testing the MFC to stable/13.

MFC after:	immediately
Fixes:		7daca4e2043f ("truss: improved support for decoding compat32 arguments")
---
 usr.bin/truss/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.bin/truss/setup.c b/usr.bin/truss/setup.c
index 31c20d656b6a..78be0c7f570f 100644
--- a/usr.bin/truss/setup.c
+++ b/usr.bin/truss/setup.c
@@ -106,7 +106,7 @@ static struct procabi freebsd32 = {
 	.type = "FreeBSD32",
 	.abi = SYSDECODE_ABI_FREEBSD32,
 	.pointer_size = sizeof(uint32_t),
-	.compat_prefix = "freebsd32",
+	.compat_prefix = "freebsd32_",
 	.extra_syscalls = STAILQ_HEAD_INITIALIZER(freebsd32.extra_syscalls),
 	.syscalls = { NULL }
 };