File 0020-linux-user-arm-no-tb_flush-on-reset.patch of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File 0020-linux-user-arm-no-tb_flush-on-reset.patch of Package qemu (Revision 531ec9ee295e00828252d4f80bb7b8a7)

Currently displaying revision 531ec9ee295e00828252d4f80bb7b8a7 , Show latest

From ea18c65ff19aa12001556d7f19145f6eb2e8bcdc 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 7eb323a..2e90e56 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -117,7 +117,11 @@ 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)

Places

File 0020-linux-user-arm-no-tb_flush-on-reset.patch of Package qemu (Revision 531ec9ee295e00828252d4f80bb7b8a7)

Places