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authorRichard Henderson <richard.henderson@linaro.org>2021-06-19 23:23:17 -0700
committerRichard Henderson <richard.henderson@linaro.org>2021-07-09 20:05:27 -0700
commit50b208b848d9497cf6d320b2d4a38a8f07354f5d (patch)
treebbaf2c2d6161ac3831450d2a1ccb296028492f03
parentd1c74ab3a1048a78b5fb8df06c1845e58111ee34 (diff)
downloadfocaccia-qemu-50b208b848d9497cf6d320b2d4a38a8f07354f5d.tar.gz
focaccia-qemu-50b208b848d9497cf6d320b2d4a38a8f07354f5d.zip
target/i386: Use cpu_breakpoint_test in breakpoint_handler
The loop is performing a simple boolean test for the existence
of a BP_CPU breakpoint at EIP.  Plus it gets the iteration wrong,
if we happen to have a BP_GDB breakpoint at the same address.

We have a function for this: cpu_breakpoint_test.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20210620062317.1399034-1-richard.henderson@linaro.org>
-rw-r--r--target/i386/tcg/sysemu/bpt_helper.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/target/i386/tcg/sysemu/bpt_helper.c b/target/i386/tcg/sysemu/bpt_helper.c
index 9bdf7e170b..f1fb479ad9 100644
--- a/target/i386/tcg/sysemu/bpt_helper.c
+++ b/target/i386/tcg/sysemu/bpt_helper.c
@@ -210,7 +210,6 @@ void breakpoint_handler(CPUState *cs)
 {
     X86CPU *cpu = X86_CPU(cs);
     CPUX86State *env = &cpu->env;
-    CPUBreakpoint *bp;
 
     if (cs->watchpoint_hit) {
         if (cs->watchpoint_hit->flags & BP_CPU) {
@@ -222,14 +221,9 @@ void breakpoint_handler(CPUState *cs)
             }
         }
     } else {
-        QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
-            if (bp->pc == env->eip) {
-                if (bp->flags & BP_CPU) {
-                    check_hw_breakpoints(env, true);
-                    raise_exception(env, EXCP01_DB);
-                }
-                break;
-            }
+        if (cpu_breakpoint_test(cs, env->eip, BP_CPU)) {
+            check_hw_breakpoints(env, true);
+            raise_exception(env, EXCP01_DB);
         }
     }
 }