[PATCH v3 31/34] tcg: Factor init_ffi_layouts() out of tcg_context_init()

[Richard Henderson <richard.henderson@linaro.org>]

From: Philippe Mathieu-Daudé <philmd@linaro.org>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20221111074101.2069454-27-richard.henderson@linaro.org>
[PMD: Split from bigger patch]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20221122180804.938-3-philmd@linaro.org>
---
 tcg/tcg.c | 83 +++++++++++++++++++++++++++++--------------------------
 1 file changed, 44 insertions(+), 39 deletions(-)

diff --git a/tcg/tcg.c b/tcg/tcg.c
index 46cce228a0..3c3bb2d422 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -573,7 +573,49 @@ static ffi_type *typecode_to_ffi(int argmask)
     }
     g_assert_not_reached();
 }
-#endif
+
+static void init_ffi_layouts(void)
+{
+    /* g_direct_hash/equal for direct comparisons on uint32_t.  */
+    ffi_table = g_hash_table_new(NULL, NULL);
+    for (int i = 0; i < ARRAY_SIZE(all_helpers); ++i) {
+        uint32_t typemask = all_helpers[i].typemask;
+        gpointer hash = (gpointer)(uintptr_t)typemask;
+        struct {
+            ffi_cif cif;
+            ffi_type *args[];
+        } *ca;
+        ffi_status status;
+        int nargs;
+
+        if (g_hash_table_lookup(ffi_table, hash)) {
+            continue;
+        }
+
+        /* Ignoring the return type, find the last non-zero field. */
+        nargs = 32 - clz32(typemask >> 3);
+        nargs = DIV_ROUND_UP(nargs, 3);
+
+        ca = g_malloc0(sizeof(*ca) + nargs * sizeof(ffi_type *));
+        ca->cif.rtype = typecode_to_ffi(typemask & 7);
+        ca->cif.nargs = nargs;
+
+        if (nargs != 0) {
+            ca->cif.arg_types = ca->args;
+            for (int j = 0; j < nargs; ++j) {
+                int typecode = extract32(typemask, (j + 1) * 3, 3);
+                ca->args[j] = typecode_to_ffi(typecode);
+            }
+        }
+
+        status = ffi_prep_cif(&ca->cif, FFI_DEFAULT_ABI, nargs,
+                              ca->cif.rtype, ca->cif.arg_types);
+        assert(status == FFI_OK);
+
+        g_hash_table_insert(ffi_table, hash, (gpointer)&ca->cif);
+    }
+}
+#endif /* CONFIG_TCG_INTERPRETER */
 
 typedef struct TCGCumulativeArgs {
     int arg_idx;                /* tcg_gen_callN args[] */
@@ -768,44 +810,7 @@ static void tcg_context_init(unsigned max_cpus)
     }
 
 #ifdef CONFIG_TCG_INTERPRETER
-    /* g_direct_hash/equal for direct comparisons on uint32_t.  */
-    ffi_table = g_hash_table_new(NULL, NULL);
-    for (i = 0; i < ARRAY_SIZE(all_helpers); ++i) {
-        struct {
-            ffi_cif cif;
-            ffi_type *args[];
-        } *ca;
-        uint32_t typemask = all_helpers[i].typemask;
-        gpointer hash = (gpointer)(uintptr_t)typemask;
-        ffi_status status;
-        int nargs;
-
-        if (g_hash_table_lookup(ffi_table, hash)) {
-            continue;
-        }
-
-        /* Ignoring the return type, find the last non-zero field. */
-        nargs = 32 - clz32(typemask >> 3);
-        nargs = DIV_ROUND_UP(nargs, 3);
-
-        ca = g_malloc0(sizeof(*ca) + nargs * sizeof(ffi_type *));
-        ca->cif.rtype = typecode_to_ffi(typemask & 7);
-        ca->cif.nargs = nargs;
-
-        if (nargs != 0) {
-            ca->cif.arg_types = ca->args;
-            for (int j = 0; j < nargs; ++j) {
-                int typecode = extract32(typemask, (j + 1) * 3, 3);
-                ca->args[j] = typecode_to_ffi(typecode);
-            }
-        }
-
-        status = ffi_prep_cif(&ca->cif, FFI_DEFAULT_ABI, nargs,
-                              ca->cif.rtype, ca->cif.arg_types);
-        assert(status == FFI_OK);
-
-        g_hash_table_insert(ffi_table, hash, (gpointer)&ca->cif);
-    }
+    init_ffi_layouts();
 #endif
 
     tcg_target_init(s);
-- 
2.34.1