target/arm: Factor out unallocated_encoding for aarch32

Make this a static function private to translate.c.
Thus we can use the same idiom between aarch64 and aarch32
without actually sharing function implementations.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Message-id: 20190826151536.6771-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/target/arm/translate-vfp.inc.c b/target/arm/translate-vfp.inc.c
index 5065d45..3e8ea80 100644 (file)
--- a/target/arm/translate-vfp.inc.c
+++ b/target/arm/translate-vfp.inc.c
@@ -108,8 +108,7 @@ static bool full_vfp_access_check(DisasContext *s, bool ignore_vfp_enabled)
 
     if (!s->vfp_enabled && !ignore_vfp_enabled) {
         assert(!arm_dc_feature(s, ARM_FEATURE_M));
-        gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
-                           default_exception_el(s));
+        unallocated_encoding(s);
         return false;
     }
 

diff --git a/target/arm/translate.c b/target/arm/translate.c
index 2aac9aa..6631158 100644 (file)
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -1231,6 +1231,13 @@ static void gen_exception_bkpt_insn(DisasContext *s, uint32_t syn)
     s->base.is_jmp = DISAS_NORETURN;
 }
 
+static void unallocated_encoding(DisasContext *s)
+{
+    /* Unallocated and reserved encodings are uncategorized */
+    gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
+                       default_exception_el(s));
+}
+
 /* Force a TB lookup after an instruction that changes the CPU state.  */
 static inline void gen_lookup_tb(DisasContext *s)
 {
@@ -1261,8 +1268,7 @@ static inline void gen_hlt(DisasContext *s, int imm)
         return;
     }
 
-    gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
-                       default_exception_el(s));
+    unallocated_encoding(s);
 }
 
 static inline void gen_add_data_offset(DisasContext *s, unsigned int insn,
@@ -7574,8 +7580,7 @@ static void gen_srs(DisasContext *s,
     }
 
     if (undef) {
-        gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
-                           default_exception_el(s));
+        unallocated_encoding(s);
         return;
     }
 
@@ -9196,8 +9201,7 @@ static void disas_arm_insn(DisasContext *s, unsigned int insn)
             break;
         default:
         illegal_op:
-            gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
-                               default_exception_el(s));
+            unallocated_encoding(s);
             break;
         }
     }
@@ -10882,8 +10886,7 @@ static void disas_thumb2_insn(DisasContext *s, uint32_t insn)
     }
     return;
 illegal_op:
-    gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
-                       default_exception_el(s));
+    unallocated_encoding(s);
 }
 
 static void disas_thumb_insn(DisasContext *s, uint32_t insn)
@@ -11706,8 +11709,7 @@ static void disas_thumb_insn(DisasContext *s, uint32_t insn)
     return;
 illegal_op:
 undef:
-    gen_exception_insn(s, s->pc_curr, EXCP_UDEF, syn_uncategorized(),
-                       default_exception_el(s));
+    unallocated_encoding(s);
 }
 
 static bool insn_crosses_page(CPUARMState *env, DisasContext *s)