Implement os.execv + added a .h file for third party library

Author: Franziska Geiger

graalpython/com.oracle.graal.python.cext/include/typeslots.h

@@ -0,0 +1,85 @@
+/* Do not renumber the file; these numbers are part of the stable ABI. */
+/* Disabled, see #10181 */
+#undef Py_bf_getbuffer
+#undef Py_bf_releasebuffer
+#define Py_mp_ass_subscript 3
+#define Py_mp_length 4
+#define Py_mp_subscript 5
+#define Py_nb_absolute 6
+#define Py_nb_add 7
+#define Py_nb_and 8
+#define Py_nb_bool 9
+#define Py_nb_divmod 10
+#define Py_nb_float 11
+#define Py_nb_floor_divide 12
+#define Py_nb_index 13
+#define Py_nb_inplace_add 14
+#define Py_nb_inplace_and 15
+#define Py_nb_inplace_floor_divide 16
+#define Py_nb_inplace_lshift 17
+#define Py_nb_inplace_multiply 18
+#define Py_nb_inplace_or 19
+#define Py_nb_inplace_power 20
+#define Py_nb_inplace_remainder 21
+#define Py_nb_inplace_rshift 22
+#define Py_nb_inplace_subtract 23
+#define Py_nb_inplace_true_divide 24
+#define Py_nb_inplace_xor 25
+#define Py_nb_int 26
+#define Py_nb_invert 27
+#define Py_nb_lshift 28
+#define Py_nb_multiply 29
+#define Py_nb_negative 30
+#define Py_nb_or 31
+#define Py_nb_positive 32
+#define Py_nb_power 33
+#define Py_nb_remainder 34
+#define Py_nb_rshift 35
+#define Py_nb_subtract 36
+#define Py_nb_true_divide 37
+#define Py_nb_xor 38
+#define Py_sq_ass_item 39
+#define Py_sq_concat 40
+#define Py_sq_contains 41
+#define Py_sq_inplace_concat 42
+#define Py_sq_inplace_repeat 43
+#define Py_sq_item 44
+#define Py_sq_length 45
+#define Py_sq_repeat 46
+#define Py_tp_alloc 47
+#define Py_tp_base 48
+#define Py_tp_bases 49
+#define Py_tp_call 50
+#define Py_tp_clear 51
+#define Py_tp_dealloc 52
+#define Py_tp_del 53
+#define Py_tp_descr_get 54
+#define Py_tp_descr_set 55
+#define Py_tp_doc 56
+#define Py_tp_getattr 57
+#define Py_tp_getattro 58
+#define Py_tp_hash 59
+#define Py_tp_init 60
+#define Py_tp_is_gc 61
+#define Py_tp_iter 62
+#define Py_tp_iternext 63
+#define Py_tp_methods 64
+#define Py_tp_new 65
+#define Py_tp_repr 66
+#define Py_tp_richcompare 67
+#define Py_tp_setattr 68
+#define Py_tp_setattro 69
+#define Py_tp_str 70
+#define Py_tp_traverse 71
+#define Py_tp_members 72
+#define Py_tp_getset 73
+#define Py_tp_free 74
+#define Py_nb_matrix_multiply 75
+#define Py_nb_inplace_matrix_multiply 76
+#define Py_am_await 77
+#define Py_am_aiter 78
+#define Py_am_anext 79
+#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03050000
+/* New in 3.5 */
+#define Py_tp_finalize 80
+#endif

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/PosixModuleBuiltins.java

@@ -112,6 +112,7 @@
 import com.oracle.graal.python.builtins.objects.floats.PFloat;
 import com.oracle.graal.python.builtins.objects.function.PKeyword;
 import com.oracle.graal.python.builtins.objects.ints.PInt;
+import com.oracle.graal.python.builtins.objects.list.PList;
 import com.oracle.graal.python.builtins.objects.module.PythonModule;
 import com.oracle.graal.python.builtins.objects.str.PString;
 import com.oracle.graal.python.builtins.objects.tuple.PTuple;
@@ -283,6 +284,33 @@ public void postInitialize(PythonCore core) {
         ((PDict) environAttr).setDictStorage(environ.getDictStorage());
     }
 
+    @Builtin(name = "execv", minNumOfPositionalArgs = 2)
+    @GenerateNodeFactory
+    public abstract static class ExecvNode extends PythonBuiltinNode {
+
+        @Specialization
+        Object execute(String path, PList args) {
+            return doExecute(path, args);
+        }
+
+        @TruffleBoundary
+        Object doExecute(String path, PList args) {
+            try {
+                int size = args.getSequenceStorage().length();
+                String[] cmd = new String[1 + size];
+                cmd[0] = path;
+                for (int i = 1; i < size; i++) {
+                    cmd[i + 3] = args.getSequenceStorage().getItemNormalized(i).toString();
+                }
+                new ProcessBuilder(cmd).start();
+            } catch (IOException e) {
+                throw raise(PythonErrorType.ValueError, "Could not execute script '%s'", e.getMessage());
+            }
+            return PNone.NONE;
+        }
+
+    }
+
     @Builtin(name = "getcwd", minNumOfPositionalArgs = 0)
     @GenerateNodeFactory
     public abstract static class CwdNode extends PythonBuiltinNode {