qemu/0019-linux-user-ARM-Ignore-immediate-val.patch

From 8cc5120497695e7ea8dde9b096eb6c8cb9b6ac35 Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Tue, 29 May 2012 17:28:07 +0200
Subject: [PATCH] linux-user: ARM: Ignore immediate value for svc in thumb mode

When running in thumb mode, Linux doesn't evaluate the immediate value
of the svc instruction, but instead just always assumes the syscall number
to be in r7.

This fixes executing go_bootstrap while building go for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 linux-user/main.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/linux-user/main.c b/linux-user/main.c
index 503ecfa..ed48276 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -823,8 +823,7 @@ void cpu_loop(CPUARMState *env)
                 } else if (n == ARM_NR_semihosting
                            || n == ARM_NR_thumb_semihosting) {
                     env->regs[0] = do_arm_semihosting (env);
-                } else if (n == 0 || n >= ARM_SYSCALL_BASE
-                           || (env->thumb && n == ARM_THUMB_SYSCALL)) {
+                } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) {
                     /* linux syscall */
                     if (env->thumb || n == 0) {
                         n = env->regs[7];