1 files changed, 785 insertions, 0 deletions
diff --git a/gcc/testsuite/objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h b/gcc/testsuite/objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h
new file mode 100644
index 000000000..b98188033
--- /dev/null
+++ b/gcc/testsuite/objc-obj-c++-shared/objc-test-suite-next-encode-assist-impl.h
@@ -0,0 +1,785 @@
+#ifndef _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_IMPL_H_
+#define _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_IMPL_H_
+
+#ifdef __NEXT_RUNTIME__
+
+/* Determine which API to use.  */
+#include "next-abi.h"
+#ifdef NEXT_OBJC_USE_NEW_INTERFACE
+#include <objc/runtime.h>
+typedef void * PMETH;
+#else
+#include <objc/objc-runtime.h>
+typedef struct objc_method * PMETH;
+#endif
+
+/* ---- */
+
+#undef  MAX
+#undef  MIN
+#undef  ROUND
+
+#ifdef __cplusplus
+#  define MAX(X, Y) ((X > Y) ? X : Y)
+#  define MIN(X, Y) ((X < Y) ? X : Y)
+#  define ROUND(V, A) (A * ((V + A - 1) / A))
+#else
+#  define MAX(X, Y)                    \
+  ({ typeof (X) __x = (X), __y = (Y); \
+     (__x > __y ? __x : __y); })
+#  define MIN(X, Y)                    \
+  ({ typeof (X) __x = (X), __y = (Y); \
+     (__x < __y ? __x : __y); })
+#  define ROUND(V, A) \
+  ({ typeof (V) __v = (V); typeof (A) __a = (A); \
+     __a * ((__v+__a - 1)/__a); })
+#endif
+
+#define BITS_PER_UNIT __CHAR_BIT__
+typedef struct{ char a; } __small_struct;
+#define STRUCTURE_SIZE_BOUNDARY (BITS_PER_UNIT * sizeof (__small_struct))
+
+/*
+  return the size of an object specified by type
+*/
+
+int
+objc_sizeof_type (const char *type)
+{
+  /* Skip the variable name if any */
+  if (*type == '"')
+    {
+      for (type++; *type++ != '"';)
+	/* do nothing */;
+    }
+
+  switch (*type) {
+  case _C_ID:
+    return sizeof (id);
+    break;
+
+  case _C_CLASS:
+    return sizeof (Class);
+    break;
+
+  case _C_SEL:
+    return sizeof (SEL);
+    break;
+
+  case _C_CHR:
+    return sizeof (char);
+    break;
+
+  case _C_UCHR:
+    return sizeof (unsigned char);
+    break;
+
+  case _C_SHT:
+    return sizeof (short);
+    break;
+
+  case _C_USHT:
+    return sizeof (unsigned short);
+    break;
+
+  case _C_INT:
+    return sizeof (int);
+    break;
+
+  case _C_UINT:
+    return sizeof (unsigned int);
+    break;
+
+  case _C_LNG:
+    return sizeof (long);
+    break;
+
+  case _C_ULNG:
+    return sizeof (unsigned long);
+    break;
+
+  case _C_LNG_LNG:
+    return sizeof (long long);
+    break;
+
+  case _C_ULNG_LNG:
+    return sizeof (unsigned long long);
+    break;
+
+  case _C_FLT:
+    return sizeof (float);
+    break;
+
+  case _C_DBL:
+    return sizeof (double);
+    break;
+
+  case _C_PTR:
+  case _C_ATOM:
+  case _C_CHARPTR:
+    return sizeof (char *);
+    break;
+
+  case _C_ARY_B:
+    {
+      int len = atoi (type + 1);
+      while (isdigit ((unsigned char)*++type))
+	;
+      return len * objc_aligned_size (type);
+    }
+    break;
+
+  case _C_BFLD:
+    {
+      /* The NeXT encoding of bitfields is _still_: b 'size' */
+      int size = atoi (type + 1);
+      /* Return an upper bound on byte size */
+      return (size + BITS_PER_UNIT - 1) / BITS_PER_UNIT;
+    }
+
+  case _C_STRUCT_B:
+    {
+      struct objc_struct_layout layout;
+      unsigned int size;
+
+      objc_layout_structure (type, &layout);
+      while (objc_layout_structure_next_member (&layout))
+        /* do nothing */ ;
+      objc_layout_finish_structure (&layout, &size, NULL);
+
+      return size;
+    }
+
+  case _C_UNION_B:
+    {
+      int max_size = 0;
+      while (*type != _C_UNION_E && *type++ != '=')
+	/* do nothing */;
+      while (*type != _C_UNION_E)
+	{
+	  /* Skip the variable name if any */
+	  if (*type == '"')
+	    {
+	      for (type++; *type++ != '"';)
+		/* do nothing */;
+	    }
+	  max_size = MAX (max_size, objc_sizeof_type (type));
+	  type = objc_skip_typespec (type);
+	}
+      return max_size;
+    }
+  }
+  return 0; /* error */
+}
+
+
+/*
+  Return the alignment of an object specified by type
+*/
+
+int
+objc_alignof_type (const char *type)
+{
+  /* Skip the variable name if any */
+  if (*type == '"')
+    {
+      for (type++; *type++ != '"';)
+	/* do nothing */;
+    }
+  switch (*type) {
+  case _C_ID:
+    return __alignof__ (id);
+    break;
+
+  case _C_CLASS:
+    return __alignof__ (Class);
+    break;
+
+  case _C_SEL:
+    return __alignof__ (SEL);
+    break;
+
+  case _C_CHR:
+    return __alignof__ (char);
+    break;
+
+  case _C_UCHR:
+    return __alignof__ (unsigned char);
+    break;
+
+  case _C_SHT:
+    return __alignof__ (short);
+    break;
+
+  case _C_USHT:
+    return __alignof__ (unsigned short);
+    break;
+
+  case _C_INT:
+  case _C_BFLD: /* This is for the NeXT only */
+    return __alignof__ (int);
+    break;
+
+  case _C_UINT:
+    return __alignof__ (unsigned int);
+    break;
+
+  case _C_LNG:
+    return __alignof__ (long);
+    break;
+
+  case _C_ULNG:
+    return __alignof__ (unsigned long);
+    break;
+
+  case _C_LNG_LNG:
+    return __alignof__ (long long);
+    break;
+
+  case _C_ULNG_LNG:
+    return __alignof__ (unsigned long long);
+    break;
+
+  case _C_FLT:
+    return __alignof__ (float);
+    break;
+
+  case _C_DBL:
+    return __alignof__ (double);
+    break;
+
+  case _C_PTR:
+  case _C_ATOM:
+  case _C_CHARPTR:
+    return __alignof__ (char *);
+    break;
+
+  case _C_ARY_B:
+    while (isdigit ((unsigned char)*++type))
+      /* do nothing */;
+    return objc_alignof_type (type);
+
+  case _C_STRUCT_B:
+    {
+      struct objc_struct_layout layout;
+      unsigned int align;
+
+      objc_layout_structure (type, &layout);
+      while (objc_layout_structure_next_member (&layout))
+        /* do nothing */;
+      objc_layout_finish_structure (&layout, NULL, &align);
+
+      return align;
+    }
+
+  case _C_UNION_B:
+    {
+      int maxalign = 0;
+      while (*type != _C_UNION_E && *type++ != '=')
+	/* do nothing */;
+      while (*type != _C_UNION_E)
+	{
+	  /* Skip the variable name if any */
+	  if (*type == '"')
+	    {
+	      for (type++; *type++ != '"';)
+		/* do nothing */;
+	    }
+	  maxalign = MAX (maxalign, objc_alignof_type (type));
+	  type = objc_skip_typespec (type);
+	}
+      return maxalign;
+    }
+  }
+  return 0; /* error */
+}
+
+/*
+  The aligned size if the size rounded up to the nearest alignment.
+*/
+
+int
+objc_aligned_size (const char *type)
+{
+  int size, align;
+
+  /* Skip the variable name */
+  if (*type == '"')
+    {
+      for (type++; *type++ != '"';)
+	/* do nothing */;
+    }
+
+  size = objc_sizeof_type (type);
+  align = objc_alignof_type (type);
+
+  return ROUND (size, align);
+}
+
+/*
+  The size rounded up to the nearest integral of the wordsize, taken
+  to be the size of a void *.
+*/
+
+int
+objc_promoted_size (const char *type)
+{
+  int size, wordsize;
+
+  /* Skip the variable name */
+  if (*type == '"')
+    {
+      for (type++; *type++ != '"';)
+	/* do nothing */;
+    }
+
+  size = objc_sizeof_type (type);
+  wordsize = sizeof (void *);
+
+  return ROUND (size, wordsize);
+}
+
+/*
+  Skip type qualifiers.  These may eventually precede typespecs
+  occurring in method prototype encodings.
+*/
+
+const char *
+objc_skip_type_qualifiers (const char *type)
+{
+  while (*type == _C_CONST
+	 || *type == _C_IN
+	 || *type == _C_INOUT
+	 || *type == _C_OUT
+	 || *type == _C_BYCOPY
+         || *type == _C_BYREF
+	 || *type == _C_ONEWAY
+	 || *type == _C_GCINVISIBLE)
+    {
+      type += 1;
+    }
+  return type;
+}
+
+/*
+  Skip one typespec element.  If the typespec is prepended by type
+  qualifiers, these are skipped as well.
+*/
+
+const char *
+objc_skip_typespec (const char *type)
+{
+  /* Skip the variable name if any */
+  if (*type == '"')
+    {
+      for (type++; *type++ != '"';)
+	/* do nothing */;
+    }
+
+  type = objc_skip_type_qualifiers (type);
+
+  switch (*type) {
+
+  case _C_ID:
+    /* An id may be annotated by the actual type if it is known
+       with the @"ClassName" syntax */
+
+    if (*++type != '"')
+      return type;
+    else
+      {
+	while (*++type != '"')
+	  /* do nothing */;
+	return type + 1;
+      }
+
+    /* The following are one character type codes */
+  case _C_CLASS:
+  case _C_SEL:
+  case _C_CHR:
+  case _C_UCHR:
+  case _C_CHARPTR:
+  case _C_ATOM:
+  case _C_SHT:
+  case _C_USHT:
+  case _C_INT:
+  case _C_UINT:
+  case _C_LNG:
+  case _C_ULNG:
+  case _C_LNG_LNG:
+  case _C_ULNG_LNG:
+  case _C_FLT:
+  case _C_DBL:
+  case _C_VOID:
+  case _C_UNDEF:
+    return ++type;
+    break;
+
+  case _C_ARY_B:
+    /* skip digits, typespec and closing ']' */
+
+    while (isdigit ((unsigned char)*++type))
+      ;
+    type = objc_skip_typespec (type);
+    if (*type == _C_ARY_E)
+      return ++type;
+    else
+      break; /* error */
+
+  case _C_BFLD:
+      /* The NeXT encoding for bitfields is _still_: b 'size' */
+    while (isdigit ((unsigned char)*++type))
+      ;	/* skip type and size */
+    return type;
+
+  case _C_STRUCT_B:
+    /* skip name, and elements until closing '}'  */
+
+    while (*type != _C_STRUCT_E && *type++ != '=')
+      ;
+    while (*type != _C_STRUCT_E)
+      {
+	type = objc_skip_typespec (type);
+      }
+    return ++type;
+
+  case _C_UNION_B:
+    /* skip name, and elements until closing ')'  */
+
+    while (*type != _C_UNION_E && *type++ != '=')
+      ;
+    while (*type != _C_UNION_E)
+      {
+	type = objc_skip_typespec (type);
+      }
+    return ++type;
+
+  case _C_PTR:
+    /* Just skip the following typespec */
+
+    return objc_skip_typespec (++type);
+  }
+  return 0; /* error */
+}
+
+/*
+  Skip an offset as part of a method encoding.  This is prepended by a
+  '+' if the argument is passed in registers.
+*/
+const char *
+objc_skip_offset (const char *type)
+{
+  if (*type == '+')
+    type++;
+  while (isdigit ((unsigned char) *++type))
+    ;
+  return type;
+}
+
+/*
+  Skip an argument specification of a method encoding.
+*/
+const char *
+objc_skip_argspec (const char *type)
+{
+  type = objc_skip_typespec (type);
+  type = objc_skip_offset (type);
+  return type;
+}
+/*
+  Return the number of arguments that the method MTH expects.
+  Note that all methods need two implicit arguments `self' and
+  `_cmd'.
+*/
+int
+method_get_number_of_arguments (PMETH mth)
+{
+  int i = 0;
+#ifdef NEXT_OBJC_USE_NEW_INTERFACE
+  const char *type = method_getTypeEncoding((Method)mth);
+#else
+  const char *type = mth->method_types;
+#endif
+  while (*type)
+    {
+      type = objc_skip_argspec (type);
+      i += 1;
+    }
+  return i - 1;
+}
+
+/*
+  Return the size of the argument block needed on the stack to invoke
+  the method MTH.  This may be zero, if all arguments are passed in
+  registers.
+*/
+
+int
+method_get_sizeof_arguments (PMETH mth)
+{
+#ifdef NEXT_OBJC_USE_NEW_INTERFACE
+  const char *type = objc_skip_typespec (method_getTypeEncoding((Method)mth));
+#else
+  const char *type = objc_skip_typespec (mth->method_types);
+#endif
+  return atoi (type);
+}
+
+/*
+  Return a pointer to the next argument of ARGFRAME.  type points to
+  the last argument.  Typical use of this look like:
+
+  {
+    char *datum, *type;
+    for (datum = method_get_first_argument (method, argframe, &type);
+         datum; datum = method_get_next_argument (argframe, &type))
+      {
+        unsigned flags = objc_get_type_qualifiers (type);
+        type = objc_skip_type_qualifiers (type);
+	if (*type != _C_PTR)
+          [portal encodeData: datum ofType: type];
+	else
+	  {
+	    if ((flags & _F_IN) == _F_IN)
+              [portal encodeData: *(char **) datum ofType: ++type];
+	  }
+      }
+  }
+*/
+
+char *
+method_get_next_argument (arglist_t argframe, const char **type)
+{
+  const char *t = objc_skip_argspec (*type);
+
+  if (*t == '\0')
+    return 0;
+
+  *type = t;
+  t = objc_skip_typespec (t);
+
+  if (*t == '+')
+    return argframe->arg_regs + atoi (++t);
+  else
+    return argframe->arg_ptr + atoi (t);
+}
+
+/*
+  Return a pointer to the value of the first argument of the method
+  described in M with the given argumentframe ARGFRAME.  The type
+  is returned in TYPE.  type must be passed to successive calls of
+  method_get_next_argument.
+*/
+char *
+method_get_first_argument (PMETH m,
+			   arglist_t argframe,
+			   const char **type)
+{
+#ifdef NEXT_OBJC_USE_NEW_INTERFACE
+  *type = method_getTypeEncoding((Method)m);
+#else
+  *type = m->method_types;
+#endif
+
+  return method_get_next_argument (argframe, type);
+}
+
+/*
+   Return a pointer to the ARGth argument of the method
+   M from the frame ARGFRAME.  The type of the argument
+   is returned in the value-result argument TYPE
+*/
+
+char *
+method_get_nth_argument (PMETH m,
+			 arglist_t argframe, int arg,
+			 const char **type)
+{
+#ifdef NEXT_OBJC_USE_NEW_INTERFACE
+  const char *t = objc_skip_argspec (method_getTypeEncoding((Method)m));
+#else
+  const char *t = objc_skip_argspec (m->method_types);
+#endif
+
+  if (arg > method_get_number_of_arguments (m))
+    return 0;
+
+  while (arg--)
+    t = objc_skip_argspec (t);
+
+  *type = t;
+  t = objc_skip_typespec (t);
+
+  if (*t == '+')
+    return argframe->arg_regs + atoi (++t);
+  else
+    return argframe->arg_ptr + atoi (t);
+}
+
+unsigned
+objc_get_type_qualifiers (const char *type)
+{
+  unsigned res = 0;
+  BOOL flag = YES;
+
+  while (flag)
+    switch (*type++)
+      {
+      case _C_CONST:	res |= _F_CONST; break;
+      case _C_IN:	res |= _F_IN; break;
+      case _C_INOUT:	res |= _F_INOUT; break;
+      case _C_OUT:	res |= _F_OUT; break;
+      case _C_BYCOPY:	res |= _F_BYCOPY; break;
+      case _C_BYREF:  res |= _F_BYREF; break;
+      case _C_ONEWAY:	res |= _F_ONEWAY; break;
+      case _C_GCINVISIBLE: res |= _F_GCINVISIBLE; break;
+      default: flag = NO;
+    }
+
+  return res;
+}
+
+
+/* The following three functions can be used to determine how a
+   structure is laid out by the compiler. For example:
+
+  struct objc_struct_layout layout;
+  int i;
+
+  objc_layout_structure (type, &layout);
+  while (objc_layout_structure_next_member (&layout))
+    {
+      int position, align;
+      const char *type;
+
+      objc_layout_structure_get_info (&layout, &position, &align, &type);
+      printf ("element %d has offset %d, alignment %d\n",
+              i++, position, align);
+    }
+
+  These functions are used by objc_sizeof_type and objc_alignof_type
+  functions to compute the size and alignment of structures. The
+  previous method of computing the size and alignment of a structure
+  was not working on some architectures, particulary on AIX, and in
+  the presence of bitfields inside the structure. */
+void
+objc_layout_structure (const char *type,
+                           struct objc_struct_layout *layout)
+{
+  const char *ntype;
+
+  layout->original_type = ++type;
+
+  /* Skip "<name>=" if any. Avoid embedded structures and unions. */
+  ntype = type;
+  while (*ntype != _C_STRUCT_E && *ntype != _C_STRUCT_B && *ntype != _C_UNION_B
+         && *ntype++ != '=')
+    /* do nothing */;
+
+  /* If there's a "<name>=", ntype - 1 points to '='; skip the the name */
+  if (*(ntype - 1) == '=')
+    type = ntype;
+
+  layout->type = type;
+  layout->prev_type = NULL;
+  layout->record_size = 0;
+  layout->record_align = MAX (BITS_PER_UNIT, STRUCTURE_SIZE_BOUNDARY);
+}
+
+BOOL
+objc_layout_structure_next_member (struct objc_struct_layout *layout)
+{
+  register int desired_align = 0;
+
+  /* The current type without the type qualifiers */
+  const char *type;
+
+  /* Add the size of the previous field to the size of the record.  */
+  if (layout->prev_type)
+    {
+      type = objc_skip_type_qualifiers (layout->prev_type);
+
+      if (*type != _C_BFLD)
+        layout->record_size += objc_sizeof_type (type) * BITS_PER_UNIT;
+      else
+	layout->record_size += atoi (++type);
+    }
+
+  if (*layout->type == _C_STRUCT_E)
+    return NO;
+
+  /* Skip the variable name if any */
+  if (*layout->type == '"')
+    {
+      for (layout->type++; *layout->type++ != '"';)
+        /* do nothing */;
+    }
+
+  type = objc_skip_type_qualifiers (layout->type);
+
+  desired_align = objc_alignof_type (type) * BITS_PER_UNIT;
+
+  /* Record must have at least as much alignment as any field.
+     Otherwise, the alignment of the field within the record
+     is meaningless.  */
+  layout->record_align = MAX (layout->record_align, desired_align);
+
+  if (*type == _C_BFLD)
+    {
+      int bfld_size = atoi (++type);
+      int int_align = __alignof__ (int) * BITS_PER_UNIT;
+      /* If this bitfield would traverse a word alignment boundary, push it out 
+	 to that boundary instead.  */
+      if (layout->record_size % int_align
+	  && (layout->record_size / int_align
+	      < (layout->record_size + bfld_size - 1) / int_align))
+	layout->record_size = ROUND (layout->record_size, int_align);
+    }
+  else if (layout->record_size % desired_align != 0)
+    {
+      /* We need to skip space before this field.
+         Bump the cumulative size to multiple of field alignment.  */
+      layout->record_size = ROUND (layout->record_size, desired_align);
+    }
+
+  /* Jump to the next field in record. */
+
+  layout->prev_type = layout->type;
+  layout->type = objc_skip_typespec (layout->type);      /* skip component */
+
+  return YES;
+}
+
+
+void objc_layout_finish_structure (struct objc_struct_layout *layout,
+                                   unsigned int *size,
+                                   unsigned int *align)
+{
+  if (layout->type && *layout->type == _C_STRUCT_E)
+    {
+      /* Round the size up to be a multiple of the required alignment */
+      layout->record_size = ROUND (layout->record_size, layout->record_align);
+      layout->type = NULL;
+    }
+  if (size)
+    *size = layout->record_size / BITS_PER_UNIT;
+  if (align)
+    *align = layout->record_align / BITS_PER_UNIT;
+}
+
+
+void objc_layout_structure_get_info (struct objc_struct_layout *layout,
+                                     unsigned int *offset,
+                                     unsigned int *align,
+                                     const char **type)
+{
+  if (offset)
+    *offset = layout->record_size / BITS_PER_UNIT;
+  if (align)
+    *align = layout->record_align / BITS_PER_UNIT;
+  if (type)
+    *type = layout->prev_type;
+}
+
+#endif /* __NEXT_RUNTIME__ */
+#endif /* _OBJC_TEST_SUITE_NEXT_ENCODE_ASSIST_IMPL_H_ */