From: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Tue, 18 Nov 2008 20:26:41 +0000 (+0000)
Subject: Remove premature memop TB terminations (Jan Kiszka)
X-Git-Tag: release_0_10_0~944
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bfa50bc2638d877cf2900712b7503be22e8811cb;p=thirdparty%2Fqemu.git

Remove premature memop TB terminations (Jan Kiszka)

Now that we can properly restore the pc on watchpoint hits, there is no
more need for prematurely terminating TBs if watchpoints are present.
Remove all related bits.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5742 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/exec.c b/exec.c
index 0dd4aa3d8d7..b49162cfe76 100644
--- a/exec.c
+++ b/exec.c
@@ -1325,10 +1325,6 @@ int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len,
     env->watchpoints = wp;
 
     tlb_flush_page(env, addr);
-    /* FIXME: This flush is needed because of the hack to make memory ops
-       terminate the TB.  It can be removed once the proper IO trap and
-       re-execute bits are in.  */
-    tb_flush(env);
 
     if (watchpoint)
         *watchpoint = wp;
diff --git a/target-arm/translate.c b/target-arm/translate.c
index 237c5f69416..54eb0670b51 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -8729,12 +8729,6 @@ static inline void gen_intermediate_code_internal(CPUState *env,
             gen_set_label(dc->condlabel);
             dc->condjmp = 0;
         }
-        /* Terminate the TB on memory ops if watchpoints are present.  */
-        /* FIXME: This should be replacd by the deterministic execution
-         * IRQ raising bits.  */
-        if (dc->is_mem && env->watchpoints)
-            break;
-
         /* Translation stops when a conditional branch is enoutered.
          * Otherwise the subsequent code could get translated several times.
          * Also stop translation when a page boundary is reached.  This
diff --git a/target-m68k/translate.c b/target-m68k/translate.c
index 49e2cb27df9..a14f6c560ca 100644
--- a/target-m68k/translate.c
+++ b/target-m68k/translate.c
@@ -3027,12 +3027,6 @@ gen_intermediate_code_internal(CPUState *env, TranslationBlock *tb,
         dc->insn_pc = dc->pc;
 	disas_m68k_insn(env, dc);
         num_insns++;
-
-        /* Terminate the TB on memory ops if watchpoints are present.  */
-        /* FIXME: This should be replaced by the deterministic execution
-         * IRQ raising bits.  */
-        if (dc->is_mem && env->watchpoints)
-            break;
     } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end &&
              !env->singlestep_enabled &&
              (pc_offset) < (TARGET_PAGE_SIZE - 32) &&