[vala/staging] codegen: Use alternative for g_memdup in POSIX profile

[Rico Tzschichholz <ricotz src gnome org>]

commit 6ac9b05833c369603a61b0152f04c80a39a3b42a
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Oct 19 00:12:26 2019 +0200

    codegen: Use alternative for g_memdup in POSIX profile

 codegen/valaccodearraymodule.vala | 30 +++++++++++++++++++++++++-----
 1 file changed, 25 insertions(+), 5 deletions(-)
---
diff --git a/codegen/valaccodearraymodule.vala b/codegen/valaccodearraymodule.vala
index 6a7ba9337..4e295c7c6 100644
--- a/codegen/valaccodearraymodule.vala
+++ b/codegen/valaccodearraymodule.vala
@@ -555,14 +555,34 @@ public class Vala.CCodeArrayModule : CCodeMethodCallModule {
 
                        ccode.add_return (new CCodeIdentifier ("result"));
                } else {
-                       var dup_call = new CCodeFunctionCall (new CCodeIdentifier ("g_memdup"));
-                       dup_call.add_argument (new CCodeIdentifier ("self"));
-
                        var sizeof_call = new CCodeFunctionCall (new CCodeIdentifier ("sizeof"));
                        sizeof_call.add_argument (new CCodeIdentifier (get_ccode_name 
(array_type.element_type)));
-                       dup_call.add_argument (new CCodeBinaryExpression (CCodeBinaryOperator.MUL, new 
CCodeIdentifier ("length"), sizeof_call));
+                       var length_expr = new CCodeIdentifier ("length");
+
+                       if (context.profile == Profile.POSIX) {
+                               cfile.add_include ("stdlib.h");
+                               var alloc = new CCodeFunctionCall (new CCodeIdentifier ("calloc"));
+                               alloc.add_argument (length_expr);
+                               alloc.add_argument (sizeof_call);
 
-                       ccode.add_return (dup_call);
+                               var cvardecl = new CCodeVariableDeclarator ("result");
+                               ccode.add_declaration (get_ccode_name (array_type), cvardecl);
+                               ccode.add_assignment (new CCodeIdentifier ("result"), alloc);
+
+                               var dup_call = new CCodeFunctionCall (new CCodeIdentifier ("memcpy"));
+                               dup_call.add_argument (new CCodeIdentifier ("result"));
+                               dup_call.add_argument (new CCodeIdentifier ("self"));
+                               dup_call.add_argument (new CCodeBinaryExpression (CCodeBinaryOperator.MUL, 
length_expr, sizeof_call));
+                               ccode.add_expression (dup_call);
+
+                               ccode.add_return (new CCodeIdentifier ("result"));
+                       } else {
+                               var dup_call = new CCodeFunctionCall (new CCodeIdentifier ("g_memdup"));
+                               dup_call.add_argument (new CCodeIdentifier ("self"));
+                               dup_call.add_argument (new CCodeBinaryExpression (CCodeBinaryOperator.MUL, 
length_expr, sizeof_call));
+
+                               ccode.add_return (dup_call);
+                       }
                }
 
                // append to file