From: Richard Henderson <richard.henderson@linaro.org>
Date: Fri, 23 Apr 2021 16:54:11 +0000 (-0700)
Subject: linux-user/arm: Do not emulate fpa11 in thumb mode
X-Git-Tag: v6.1.0-rc0~116^2~55
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d827f6d5fdb0826e17c80f63547c5c2dee3f0fac;p=thirdparty%2Fqemu.git

linux-user/arm: Do not emulate fpa11 in thumb mode

These antiquated instructions are arm-mode only.

Buglink: https://bugs.launchpad.net/bugs/1925512
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210423165413.338259-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---

diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c
index 106909c7d88..e2a1496b9fe 100644
--- a/linux-user/arm/cpu_loop.c
+++ b/linux-user/arm/cpu_loop.c
@@ -347,7 +347,7 @@ void cpu_loop(CPUARMState *env)
                     goto excp_debug;
                 }
 
-                if (emulate_arm_fpa11(env, opcode)) {
+                if (!env->thumb && emulate_arm_fpa11(env, opcode)) {
                     break;
                 }