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-rw-r--r--semihosting/arm-compat-semi.c62
1 files changed, 24 insertions, 38 deletions
diff --git a/semihosting/arm-compat-semi.c b/semihosting/arm-compat-semi.c
index 94950b6c56..fe079ca93a 100644
--- a/semihosting/arm-compat-semi.c
+++ b/semihosting/arm-compat-semi.c
@@ -767,15 +767,28 @@ static const GuestFDFunctions guestfd_fns[] = {
     },
 };
 
-/* Read the input value from the argument block; fail the semihosting
- * call if the memory read fails.
+/*
+ * Read the input value from the argument block; fail the semihosting
+ * call if the memory read fails. Eventually we could use a generic
+ * CPUState helper function here.
  */
-#ifdef TARGET_ARM
+static inline bool is_64bit_semihosting(CPUArchState *env)
+{
+#if defined(TARGET_ARM)
+    return is_a64(env);
+#elif defined(TARGET_RISCV)
+    return !riscv_cpu_is_32bit(env);
+#else
+#error un-handled architecture
+#endif
+}
+
+
 #define GET_ARG(n) do {                                 \
-    if (is_a64(env)) {                                  \
+    if (is_64bit_semihosting(env)) {                    \
         if (get_user_u64(arg ## n, args + (n) * 8)) {   \
             errno = EFAULT;                             \
-            return set_swi_errno(cs, -1);              \
+            return set_swi_errno(cs, -1);               \
         }                                               \
     } else {                                            \
         if (get_user_u32(arg ## n, args + (n) * 4)) {   \
@@ -786,41 +799,10 @@ static const GuestFDFunctions guestfd_fns[] = {
 } while (0)
 
 #define SET_ARG(n, val)                                 \
-    (is_a64(env) ?                                      \
+    (is_64bit_semihosting(env) ?                        \
      put_user_u64(val, args + (n) * 8) :                \
      put_user_u32(val, args + (n) * 4))
-#endif
 
-#ifdef TARGET_RISCV
-
-/*
- * get_user_ual is defined as get_user_u32 in softmmu-semi.h,
- * we need a macro that fetches a target_ulong
- */
-#define get_user_utl(arg, p)                    \
-    ((sizeof(target_ulong) == 8) ?              \
-     get_user_u64(arg, p) :                     \
-     get_user_u32(arg, p))
-
-/*
- * put_user_ual is defined as put_user_u32 in softmmu-semi.h,
- * we need a macro that stores a target_ulong
- */
-#define put_user_utl(arg, p)                    \
-    ((sizeof(target_ulong) == 8) ?              \
-     put_user_u64(arg, p) :                     \
-     put_user_u32(arg, p))
-
-#define GET_ARG(n) do {                                                 \
-        if (get_user_utl(arg ## n, args + (n) * sizeof(target_ulong))) { \
-            errno = EFAULT;                                             \
-            return set_swi_errno(cs, -1);                              \
-        }                                                               \
-    } while (0)
-
-#define SET_ARG(n, val)                                 \
-    put_user_utl(val, args + (n) * sizeof(target_ulong))
-#endif
 
 /*
  * Do a semihosting call.
@@ -1232,7 +1214,11 @@ target_ulong do_common_semihosting(CPUState *cs)
             for (i = 0; i < ARRAY_SIZE(retvals); i++) {
                 bool fail;
 
-                fail = SET_ARG(i, retvals[i]);
+                if (is_64bit_semihosting(env)) {
+                    fail = put_user_u64(retvals[i], arg0 + i * 8);
+                } else {
+                    fail = put_user_u32(retvals[i], arg0 + i * 4);
+                }
 
                 if (fail) {
                     /* Couldn't write back to argument block */