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qemu/0019-linux-user-arm-no-tb_flush-on-reset.patch

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From adad3a28638056a0719c1c75aa54fb76d31b7fac Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Tue, 29 May 2012 15:30:01 +0200
Subject: [PATCH] linux-user: arm: no tb_flush on reset
When running automoc4 as linux-user guest program, it segfaults right after
it creates a thread. Bisecting pointed to commit a84fac1426 which introduces
tb_flush on reset.
So something in our thread creation is broken. But for now, let's revert the
change to at least get a working build again.
---
target-arm/cpu.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index b00f5fa..740dbc3 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -124,7 +124,11 @@ static void arm_cpu_reset(CPUState *s)
* bake assumptions about into translated code, so we need to
* tb_flush().
*/
+#if !defined(CONFIG_USER_ONLY)
+ /* XXX hack alert! automoc4 segaults after spawning a new thread with this
+ flush enabled */
tb_flush(env);
+#endif
}
static inline void set_feature(CPUARMState *env, int feature)