Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 325 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/java/jcf.h b/gcc-4.9/gcc/java/jcf.h
new file mode 100644
index 000000000..8aa077e4c
--- /dev/null
+++ b/gcc-4.9/gcc/java/jcf.h
@@ -0,0 +1,325 @@
+/* Utility macros to read Java(TM) .class files and byte codes.
+   Copyright (C) 1996-2014 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  
+
+Java and all Java-based marks are trademarks or registered trademarks
+of Sun Microsystems, Inc. in the United States and other countries.
+The Free Software Foundation is independent of Sun Microsystems, Inc.  */
+
+/* Written by Per Bothner <bothner@cygnus.com>, February 1996. */
+
+#ifndef GCC_JCF_H
+#define GCC_JCF_H
+#include "javaop.h"
+
+#ifndef JCF_u4
+#define JCF_u4 unsigned long
+#endif
+#ifndef JCF_u2
+#define JCF_u2 unsigned short
+#endif
+
+#define ALLOC xmalloc
+#define REALLOC xrealloc
+#ifndef FREE
+#define FREE(PTR) free(PTR)
+#endif
+
+#ifdef JCF_word
+#define JCF_word JCF_u4
+#endif
+
+/* On case-insensitive file systems, we need to ensure that a request
+   to open a .java or .class file is honored only if the file to be
+   opened is of the exact case we are asking for. In other words, we
+   want to override the inherent case insensitivity of the underlying
+   file system. On other platforms, this macro becomes the vanilla
+   open() call.
+
+   If you want to add another host, add your define to the list below
+   (i.e. defined(WIN32) || defined(YOUR_HOST)) and add a host-specific
+   .c file to Make-lang.in similar to win32-host.c.  */
+#if defined(WIN32)
+extern int
+jcf_open_exact_case (const char* filename, int oflag);
+#define JCF_OPEN_EXACT_CASE(X, Y) jcf_open_exact_case (X, Y)
+#else
+#define JCF_OPEN_EXACT_CASE open
+#endif /* WIN32 */
+
+struct JCF;
+typedef int (*jcf_filbuf_t) (struct JCF*, int needed);
+
+union GTY((variable_size)) cpool_entry {
+  jword GTY ((tag ("0"))) w;
+  tree GTY ((tag ("1"))) t;
+};
+
+#define cpool_entry_is_tree(tag) \
+  (tag & CONSTANT_ResolvedFlag) || tag == CONSTANT_Utf8
+
+typedef struct GTY(()) CPool {
+  /* Available number of elements in the constants array, before it
+     must be re-allocated. */
+  int capacity;
+
+  /* The constant_pool_count. */
+  int		count;
+
+  uint8 * GTY((atomic)) tags;
+
+  union cpool_entry * GTY((length ("%h.count"),
+			   desc ("cpool_entry_is_tree (%1.tags%a)")))	data;
+} CPool;
+
+typedef struct GTY(()) bootstrap_method {
+  unsigned method_ref;
+  unsigned num_arguments;
+  unsigned * GTY((atomic)) bootstrap_arguments;
+} bootstrap_method;
+
+typedef struct GTY(()) BootstrapMethods {
+  unsigned count;
+  bootstrap_method* GTY((length ("%h.count"))) methods;
+} BootstrapMethods;
+
+struct ZipDirectory;
+
+/* JCF encapsulates the state of reading a Java Class File. */
+
+typedef struct GTY(()) JCF {
+  unsigned char * GTY ((skip)) buffer;
+  unsigned char * GTY ((skip)) buffer_end;
+  unsigned char * GTY ((skip)) read_ptr;
+  unsigned char * GTY ((skip)) read_end;
+  unsigned int right_zip : 1;
+  unsigned int finished : 1;
+  jcf_filbuf_t filbuf;
+  PTR GTY ((skip)) read_state;
+  const char *filename;
+  const char *classname;
+  /* Directory entry where it was found.  */
+  struct ZipDirectory * GTY ((skip)) zipd;
+  JCF_u2 access_flags;
+  JCF_u2 this_class;
+  JCF_u2 super_class;
+  CPool cpool;
+  BootstrapMethods bootstrap_methods;
+} JCF;
+/*typedef JCF*  JCF_FILE;*/
+
+#define JCF_SEEN_IN_ZIP(JCF) ((JCF)->zipd != NULL)
+
+/* The CPOOL macros take a (pointer to a) CPool.
+   The JPOOL macros take a (pointer to a) JCF.
+   Some of the latter should perhaps be deprecated or removed. */
+
+#define CPOOL_COUNT(CPOOL) ((CPOOL)->count)
+#define JPOOL_SIZE(JCF) CPOOL_COUNT(&(JCF)->cpool)
+#define JPOOL_TAG(JCF, INDEX) ((JCF)->cpool.tags[INDEX])
+/* The INDEX'th constant pool entry as a JCF_u4. */
+#define CPOOL_UINT(CPOOL, INDEX) ((CPOOL)->data[INDEX].w)
+#define JPOOL_UINT(JCF, INDEX) CPOOL_UINT(&(JCF)->cpool, INDEX) /*deprecated*/
+/* The first uint16 of the INDEX'th constant pool entry. */
+#define CPOOL_USHORT1(CPOOL, INDEX) ((CPOOL)->data[INDEX].w & 0xFFFF)
+#define JPOOL_USHORT1(JCF, INDEX) CPOOL_USHORT1(&(JCF)->cpool, INDEX)
+/* The second uint16 of the INDEX'th constant pool entry. */
+#define CPOOL_USHORT2(CPOOL, INDEX) ((CPOOL)->data[INDEX].w >> 16)
+#define JPOOL_USHORT2(JCF, INDEX) CPOOL_USHORT2(&(JCF)->cpool, INDEX)
+#define JPOOL_LONG(JCF, INDEX) \
+  WORDS_TO_LONG (JPOOL_UINT(JCF, INDEX), JPOOL_UINT(JCF, (INDEX)+1))
+#define JPOOL_DOUBLE(JCF, INDEX) \
+  WORDS_TO_DOUBLE  (JPOOL_UINT(JCF, INDEX), JPOOL_UINT(JCF, (INDEX)+1))
+#ifndef JPOOL_UTF_LENGTH
+#define JPOOL_UTF_LENGTH(JCF, INDEX) \
+  GET_u2 ((JCF)->buffer+JPOOL_UINT(JCF, INDEX))
+#endif
+#ifndef JPOOL_UTF_DATA
+#define JPOOL_UTF_DATA(JCF, INDEX) \
+  ((JCF)->buffer+JPOOL_UINT(JCF, INDEX)+2)
+#endif
+#define JPOOL_INT(JCF, INDEX) (WORD_TO_INT(JPOOL_UINT (JCF, INDEX)))
+#define JPOOL_FLOAT(JCF, INDEX) WORD_TO_FLOAT (JPOOL_UINT (JCF, INDEX))
+
+#define CPOOL_INDEX_IN_RANGE(CPOOL, INDEX) \
+ ((INDEX) > 0 && (INDEX) < CPOOL_COUNT(CPOOL))
+
+#define CPOOL_FINISH(CPOOL) {			\
+    (CPOOL)->tags = 0;				\
+    (CPOOL)->data = 0;				\
+  }
+
+#define JCF_FINISH(JCF) { \
+  CPOOL_FINISH(&(JCF)->cpool); \
+  if ((JCF)->buffer) free ((JCF)->buffer); \
+  if ((JCF)->filename) free (CONST_CAST (char *, (JCF)->filename)); \
+  if ((JCF)->classname) free (CONST_CAST (char *, (JCF)->classname)); \
+  (JCF)->finished = 1; }
+  
+#define CPOOL_INIT(CPOOL) \
+  ((CPOOL)->capacity = 0, (CPOOL)->count = 0, (CPOOL)->tags = 0, (CPOOL)->data = 0)
+
+#define CPOOL_REINIT(CPOOL) ((CPOOL)->count = 0)
+
+#define JCF_ZERO(JCF)  \
+  ((JCF)->buffer = (JCF)->buffer_end = (JCF)->read_ptr = (JCF)->read_end = 0,\
+   (JCF)->read_state = 0, (JCF)->filename = (JCF)->classname = 0, \
+   CPOOL_INIT(&(JCF)->cpool), (JCF)->zipd = 0, \
+   (JCF)->finished = 0)
+
+/* Given that PTR points to a 2-byte unsigned integer in network
+   (big-endian) byte-order, return that integer. */
+#define GET_u2(PTR) (((PTR)[0] << 8) | ((PTR)[1]))
+/* Like GET_u2, but for little-endian format. */
+#define GET_u2_le(PTR) (((PTR)[1] << 8) | ((PTR)[0]))
+
+/* Given that PTR points to a 4-byte unsigned integer in network
+   (big-endian) byte-order, return that integer. */
+#define GET_u4(PTR) (((JCF_u4)(PTR)[0] << 24) | ((JCF_u4)(PTR)[1] << 16) \
+  | ((JCF_u4)(PTR)[2] << 8) | ((JCF_u4)(PTR)[3]))
+/* Like GET_u4, but for little-endian order. */
+#define GET_u4_le(PTR) (((JCF_u4)(PTR)[3] << 24) | ((JCF_u4)(PTR)[2] << 16) \
+  | ((JCF_u4)(PTR)[1] << 8) | ((JCF_u4)(PTR)[0]))
+
+/* Make sure there are COUNT bytes readable. */
+#define JCF_FILL(JCF, COUNT) \
+  ((JCF)->read_end-(JCF)->read_ptr >= (COUNT) ? 0 : (*(JCF)->filbuf)(JCF, COUNT))
+#define JCF_GETC(JCF) (JCF_FILL(JCF, 1) ? -1 : *(JCF)->read_ptr++)
+#define JCF_READ(JCF, BUFFER, N) \
+    (memcpy (BUFFER, (JCF)->read_ptr, N), (JCF)->read_ptr += (N))
+#define JCF_SKIP(JCF,N) ((JCF)->read_ptr += (N))
+#define JCF_readu(JCF) (*(JCF)->read_ptr++)
+
+/* Reads an unsigned 2-byte integer in network (big-endian) byte-order
+   from JCF.  Returns that integer.
+   Does not check for EOF (make sure to call JCF_FILL before-hand). */
+#define JCF_readu2(JCF) ((JCF)->read_ptr += 2, GET_u2 ((JCF)->read_ptr-2))
+#define JCF_readu2_le(JCF) ((JCF)->read_ptr += 2, GET_u2_le((JCF)->read_ptr-2))
+
+/* Like JCF_readu2, but read a 4-byte unsigned integer. */
+#define JCF_readu4(JCF) ((JCF)->read_ptr += 4, GET_u4 ((JCF)->read_ptr-4))
+#define JCF_readu4_le(JCF) ((JCF)->read_ptr += 4, GET_u4_le((JCF)->read_ptr-4))
+
+#define JCF_TELL(JCF) ((JCF)->read_ptr - (JCF)->buffer)
+#define JCF_SEEK(JCF, POS) ((JCF)->read_ptr = (JCF)->buffer + (POS))
+
+#define ACC_PUBLIC 0x0001
+#define ACC_PRIVATE 0x0002
+#define ACC_PROTECTED 0x0004
+#define ACC_STATIC 0x0008
+#define ACC_FINAL 0x0010
+#define ACC_SYNCHRONIZED 0x0020
+#define ACC_SUPER 0x0020
+#define ACC_BRIDGE 0x0040
+#define ACC_VOLATILE 0x0040
+#define ACC_TRANSIENT 0x0080
+#define ACC_VARARGS 0x0080
+#define ACC_NATIVE 0x0100
+#define ACC_INTERFACE 0x0200
+#define ACC_ABSTRACT 0x0400
+#define ACC_STRICT 0x0800
+#define ACC_SYNTHETIC 0x01000
+#define ACC_ANNOTATION 0x02000
+#define ACC_ENUM 0x04000
+/* "Invisible" refers to Miranda methods inserted into an abstract
+   class.  It is also used in the runtime.  */
+#define ACC_INVISIBLE 0x8000
+
+#define ACC_VISIBILITY (ACC_PUBLIC | ACC_PRIVATE | ACC_PROTECTED)
+
+enum cpool_tag
+{
+  CONSTANT_Class = 7,
+  CONSTANT_Fieldref = 9,
+  CONSTANT_Methodref = 10,
+  CONSTANT_InterfaceMethodref = 11,
+  CONSTANT_String = 8,
+  CONSTANT_Integer = 3,
+  CONSTANT_Float = 4,
+  CONSTANT_Long = 5,
+  CONSTANT_Double = 6,
+  CONSTANT_NameAndType = 12,
+  CONSTANT_Utf8 = 1,
+  CONSTANT_Unicode = 2,
+  CONSTANT_MethodHandle = 15,
+  CONSTANT_MethodType = 16,
+  CONSTANT_InvokeDynamic = 18,
+
+  CONSTANT_None = 0
+};
+
+#define DEFAULT_CLASS_PATH "."
+
+extern const char *find_class (const char *, int, JCF *);
+extern const char *find_classfile (char *, JCF*, const char *);
+extern int jcf_filbuf_from_stdio (JCF *jcf, int count);
+extern int jcf_unexpected_eof (JCF*, int) ATTRIBUTE_NORETURN;
+
+/* Extract a character from a Java-style Utf8 string.
+ * PTR points to the current character.
+ * LIMIT points to the end of the Utf8 string.
+ * PTR is incremented to point after the character that gets returned.
+ * On an error, -1 is returned. */
+#define UTF8_GET(PTR, LIMIT) \
+  ((PTR) >= (LIMIT) ? -1 \
+   : *(PTR) < 128 ? *(PTR)++ \
+   : (*(PTR)&0xE0) == 0xC0 && ((PTR)+=2)<=(LIMIT) && ((PTR)[-1]&0xC0) == 0x80 \
+   ? (((PTR)[-2] & 0x1F) << 6) + ((PTR)[-1] & 0x3F) \
+   : (*(PTR) & 0xF0) == 0xE0 && ((PTR) += 3) <= (LIMIT) \
+   && ((PTR)[-2] & 0xC0) == 0x80 && ((PTR)[-1] & 0xC0) == 0x80 \
+   ? (((PTR)[-3]&0x0F) << 12) + (((PTR)[-2]&0x3F) << 6) + ((PTR)[-1]&0x3F) \
+   : ((PTR)++, -1))
+
+extern const char *jcf_write_base_directory;
+
+/* Debug macros, for the front end */
+
+#ifdef VERBOSE_SKELETON
+#undef SOURCE_FRONTEND_DEBUG
+#define SOURCE_FRONTEND_DEBUG(X)				\
+  {if (!quiet_flag) {printf ("* "); printf X; putchar ('\n');} }
+#else
+#define SOURCE_FRONTEND_DEBUG(X)
+#endif
+
+/* Declarations for dependency code.  */
+extern void jcf_dependency_reset (void);
+extern void jcf_dependency_set_target (const char *);
+extern void jcf_dependency_add_target (const char *);
+extern void jcf_dependency_set_dep_file (const char *);
+extern void jcf_dependency_add_file (const char *, int);
+extern void jcf_dependency_write (void);
+extern void jcf_dependency_init (int);
+extern void jcf_dependency_print_dummies (void);
+
+/* Declarations for path handling code.  */
+extern void jcf_path_init (void);
+extern void jcf_path_classpath_arg (const char *);
+extern void jcf_path_bootclasspath_arg (const char *);
+extern void jcf_path_extdirs_arg (const char *);
+extern void jcf_path_include_arg (const char *);
+extern void jcf_path_seal (int);
+extern void *jcf_path_start (void);
+extern void *jcf_path_next (void *);
+extern char *jcf_path_name (void *);
+extern char *jcf_path_compute (const char *);
+extern int jcf_path_is_zipfile (void *);
+extern int jcf_path_is_system (void *);
+extern int jcf_path_max_len (void);
+
+#endif /* ! GCC_JCF_H */