target-arm: remove EXCP_STREX + cpu_exclusive_{test, info}

The exception is not emitted anymore; remove it and the associated
TCG variables.
Reviewed-by: NAlex Bennée <alex.bennee@linaro.org>
Signed-off-by: NEmilio G. Cota <cota@braap.org>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Message-Id: <1467054136-10430-31-git-send-email-cota@braap.org>

target-arm/cpu.h

@@ -46,7 +46,6 @@
 #define EXCP_BKPT            7
 #define EXCP_EXCEPTION_EXIT  8   /* Return from v7M exception.  */
 #define EXCP_KERNEL_TRAP     9   /* Jumped to kernel code page.  */
-#define EXCP_STREX          10
 #define EXCP_HVC            11   /* HyperVisor Call */
 #define EXCP_HYP_TRAP       12
 #define EXCP_SMC            13   /* Secure Monitor Call */
@@ -475,10 +474,6 @@ typedef struct CPUARMState {
     uint64_t exclusive_addr;
     uint64_t exclusive_val;
     uint64_t exclusive_high;
-#if defined(CONFIG_USER_ONLY)
-    uint64_t exclusive_test;
-    uint32_t exclusive_info;
-#endif
 
     /* iwMMXt coprocessor state.  */
     struct {

target-arm/internals.h

@@ -46,8 +46,7 @@ static inline bool excp_is_internal(int excp)
         || excp == EXCP_HALTED
         || excp == EXCP_EXCEPTION_EXIT
         || excp == EXCP_KERNEL_TRAP
-        || excp == EXCP_SEMIHOST
-        || excp == EXCP_STREX;
+        || excp == EXCP_SEMIHOST;
 }
 
 /* Exception names for debug logging; note that not all of these
@@ -63,7 +62,6 @@ static const char * const excnames[] = {
     [EXCP_BKPT] = "Breakpoint",
     [EXCP_EXCEPTION_EXIT] = "QEMU v7M exception exit",
     [EXCP_KERNEL_TRAP] = "QEMU intercept of kernel commpage",
-    [EXCP_STREX] = "QEMU intercept of STREX",
     [EXCP_HVC] = "Hypervisor Call",
     [EXCP_HYP_TRAP] = "Hypervisor Trap",
     [EXCP_SMC] = "Secure Monitor Call",

target-arm/translate.c

@@ -65,10 +65,6 @@ static TCGv_i32 cpu_R[16];
 TCGv_i32 cpu_CF, cpu_NF, cpu_VF, cpu_ZF;
 TCGv_i64 cpu_exclusive_addr;
 TCGv_i64 cpu_exclusive_val;
-#ifdef CONFIG_USER_ONLY
-TCGv_i64 cpu_exclusive_test;
-TCGv_i32 cpu_exclusive_info;
-#endif
 
 /* FIXME:  These should be removed.  */
 static TCGv_i32 cpu_F0s, cpu_F1s;
@@ -102,12 +98,6 @@ void arm_translate_init(void)
         offsetof(CPUARMState, exclusive_addr), "exclusive_addr");
     cpu_exclusive_val = tcg_global_mem_new_i64(cpu_env,
         offsetof(CPUARMState, exclusive_val), "exclusive_val");
-#ifdef CONFIG_USER_ONLY
-    cpu_exclusive_test = tcg_global_mem_new_i64(cpu_env,
-        offsetof(CPUARMState, exclusive_test), "exclusive_test");
-    cpu_exclusive_info = tcg_global_mem_new_i32(cpu_env,
-        offsetof(CPUARMState, exclusive_info), "exclusive_info");
-#endif
 
     a64_translate_init();
 }

target-arm/translate.h

@@ -79,10 +79,6 @@ extern TCGv_env cpu_env;
 extern TCGv_i32 cpu_NF, cpu_ZF, cpu_CF, cpu_VF;
 extern TCGv_i64 cpu_exclusive_addr;
 extern TCGv_i64 cpu_exclusive_val;
-#ifdef CONFIG_USER_ONLY
-extern TCGv_i64 cpu_exclusive_test;
-extern TCGv_i32 cpu_exclusive_info;
-#endif
 
 static inline int arm_dc_feature(DisasContext *dc, int feature)
 {