[Qemu-devel] [PULL 1/6] trace: fix misreporting of TCG access sizes for user-space

[Stefan Hajnoczi <stefanha@redhat.com>]

From: "Emilio G. Cota" <cota@braap.org>

trace_mem_build_info expects a size_shift for its first argument. Fix it.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-id: 1527028012-21888-2-git-send-email-cota@braap.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 include/exec/cpu_ldst_useronly_template.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/exec/cpu_ldst_useronly_template.h b/include/exec/cpu_ldst_useronly_template.h
index c168f31bba..e30e58ed4a 100644
--- a/include/exec/cpu_ldst_useronly_template.h
+++ b/include/exec/cpu_ldst_useronly_template.h
@@ -33,20 +33,24 @@
 #define SUFFIX q
 #define USUFFIX q
 #define DATA_TYPE uint64_t
+#define SHIFT 3
 #elif DATA_SIZE == 4
 #define SUFFIX l
 #define USUFFIX l
 #define DATA_TYPE uint32_t
+#define SHIFT 2
 #elif DATA_SIZE == 2
 #define SUFFIX w
 #define USUFFIX uw
 #define DATA_TYPE uint16_t
 #define DATA_STYPE int16_t
+#define SHIFT 1
 #elif DATA_SIZE == 1
 #define SUFFIX b
 #define USUFFIX ub
 #define DATA_TYPE uint8_t
 #define DATA_STYPE int8_t
+#define SHIFT 0
 #else
 #error unsupported data size
 #endif
@@ -63,7 +67,7 @@ glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
 #if !defined(CODE_ACCESS)
     trace_guest_mem_before_exec(
         ENV_GET_CPU(env), ptr,
-        trace_mem_build_info(DATA_SIZE, false, MO_TE, false));
+        trace_mem_build_info(SHIFT, false, MO_TE, false));
 #endif
     return glue(glue(ld, USUFFIX), _p)(g2h(ptr));
 }
@@ -87,7 +91,7 @@ glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr)
 #if !defined(CODE_ACCESS)
     trace_guest_mem_before_exec(
         ENV_GET_CPU(env), ptr,
-        trace_mem_build_info(DATA_SIZE, true, MO_TE, false));
+        trace_mem_build_info(SHIFT, true, MO_TE, false));
 #endif
     return glue(glue(lds, SUFFIX), _p)(g2h(ptr));
 }
@@ -113,7 +117,7 @@ glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, target_ulong ptr,
 #if !defined(CODE_ACCESS)
     trace_guest_mem_before_exec(
         ENV_GET_CPU(env), ptr,
-        trace_mem_build_info(DATA_SIZE, false, MO_TE, true));
+        trace_mem_build_info(SHIFT, false, MO_TE, true));
 #endif
     glue(glue(st, SUFFIX), _p)(g2h(ptr), v);
 }
@@ -136,3 +140,4 @@ glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
 #undef SUFFIX
 #undef USUFFIX
 #undef DATA_SIZE
+#undef SHIFT
-- 
2.17.1