aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.9/gcc/java/javaop.h
diff options
context:
space:
mode:
authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/java/javaop.h
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
downloadtoolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz
toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2
toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/java/javaop.h')
-rw-r--r--gcc-4.9/gcc/java/javaop.h190
1 files changed, 190 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/java/javaop.h b/gcc-4.9/gcc/java/javaop.h
new file mode 100644
index 000000000..fed05f1b3
--- /dev/null
+++ b/gcc-4.9/gcc/java/javaop.h
@@ -0,0 +1,190 @@
+/* Utility macros to handle Java(TM) 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_JAVAOP_H
+#define GCC_JAVAOP_H
+
+typedef unsigned char uint8;
+#ifndef int16
+#if __SHRT_MAX__ == 32767
+#define int16 short
+#elif __INT_MAX__ == 32767
+#define int16 int
+#elif __LONG_MAX__ == 32767
+#define int16 long
+#else
+#define int16 short
+#endif
+#endif
+typedef unsigned int16 uint16;
+
+#ifndef int32
+#if __INT_MAX__ == 2147483647
+#define int32 int
+#elif __LONG_MAX__ == 2147483647
+#define int32 long
+#elif __SHRT_MAX__ == 2147483647
+#define int32 short
+#else
+#define int32 int
+#endif
+#endif
+typedef unsigned int32 uint32;
+
+/* A signed 64-bit (or more) integral type, suitable for Java's 'long'. */
+#ifndef int64
+#if __LONG_MAX__ == 9223372036854775807LL
+#define int64 long
+#elif __LONG_LONG_MAX__ == 9223372036854775807LL
+#define int64 long long
+#else
+#define int64 long long
+#endif
+#endif
+/* An unsigned 64-bit (or more) integral type, same length as int64. */
+#ifndef uint64
+#define uint64 unsigned int64
+#endif
+
+typedef uint16 jchar;
+typedef signed char jbyte;
+typedef int16 jshort;
+typedef int32 jint;
+typedef int64 jlong;
+typedef void* jref;
+
+/* A 32-bit big-endian IEEE single-precision float. */
+typedef struct _jfloat {
+ unsigned int negative : 1;
+ unsigned int exponent : 8;
+ unsigned int mantissa : 23;
+} jfloat;
+#define JFLOAT_FINITE(f) ((f).exponent != 0xFF)
+#define JFLOAT_QNAN_MASK 0x400000
+#define JFLOAT_EXP_BIAS 0x7f
+
+/* A 32-bit big-endian IEEE double-precision float. */
+typedef struct _jdouble {
+ unsigned int negative : 1;
+ unsigned int exponent : 11;
+ unsigned int mantissa0: 20;
+ unsigned int mantissa1: 32;
+} jdouble;
+#define JDOUBLE_FINITE(f) ((f).exponent != 0x7FF)
+#define JDOUBLE_QNAN_MASK 0x80000 /* apply to mantissa0 */
+#define JDOUBLE_EXP_BIAS 0x3ff
+
+/* A jword is an unsigned integral type big enough for a 32-bit jint
+ or jfloat *or* a pointer. It is the type appropriate for stack
+ locations and local variables in a Java interpreter. */
+
+
+#ifndef jword
+#if defined (__LP64__) || defined (__alpha__) || defined (__MMIX__) \
+ || (defined (_ARCH_PPC) && defined (__64BIT__)) \
+ || defined (__powerpc64__) || defined (__s390x__) || defined (__x86_64__) \
+ || defined (__sparcv9) || (defined (__sparc__) && defined (__arch64__))
+#define jword uint64
+#else
+#define jword uint32
+#endif
+#endif
+
+#ifndef IMMEDIATE_u1
+#define IMMEDIATE_u1 (PC++, CHECK_PC_IN_RANGE(PC), BCODE[PC-1])
+#endif
+#ifndef IMMEDIATE_s1
+#define IMMEDIATE_s1 (PC++, CHECK_PC_IN_RANGE(PC), (signed char)BCODE[PC-1])
+#endif
+#ifndef IMMEDIATE_s2
+#define IMMEDIATE_s2 (PC+=2, CHECK_PC_IN_RANGE(PC), \
+ (signed char) BCODE[PC-2] * 256 + BCODE[PC-1])
+#endif
+#ifndef IMMEDIATE_u2
+#define IMMEDIATE_u2 (PC+=2, CHECK_PC_IN_RANGE(PC),\
+ (BCODE[PC-2] * 256 + BCODE[PC-1]))
+#endif
+#ifndef IMMEDIATE_s4
+#define IMMEDIATE_s4 (PC+=4, CHECK_PC_IN_RANGE(PC), \
+ (WORD_TO_INT((BCODE[PC-4] << 24) | (BCODE[PC-3] << 16) \
+ | (BCODE[PC-2] << 8) | (BCODE[PC-1]))))
+#endif
+
+static inline jfloat
+WORD_TO_FLOAT(jword w)
+{
+ jfloat f;
+
+ f.negative = (w & 0x80000000) >> 31;
+ f.exponent = (w & 0x7f800000) >> 23;
+ f.mantissa = (w & 0x007fffff);
+
+ return f;
+}
+
+/* Sign extend w. If the host on which this cross-compiler runs uses
+ a 64-bit type for jword the appropriate sign extension is
+ performed; if it's a 32-bit type the arithmetic does nothing but is
+ harmless. */
+static inline jint
+WORD_TO_INT(jword w)
+{
+ jint n = w & 0xffffffff; /* Mask lower 32 bits. */
+ n ^= (jint)1 << 31;
+ n -= (uint32)1 << 31; /* Sign extend lower 32 bits to upper. */
+ return n;
+}
+
+static inline jlong
+WORDS_TO_LONG(jword hi, jword lo)
+{
+ return ((jlong) hi << 32) | ((jlong)lo & (((jlong)1 << 32) -1));
+}
+
+static inline jdouble
+WORDS_TO_DOUBLE(jword hi, jword lo)
+{
+ jdouble d;
+
+ d.negative = (hi & 0x80000000) >> 31;
+ d.exponent = (hi & 0x7ff00000) >> 20;
+ d.mantissa0 = (hi & 0x000fffff);
+ d.mantissa1 = lo;
+
+ return d;
+}
+
+/* If PREFIX_CHAR is the first character of the Utf8 encoding of a character,
+ return the number of bytes taken by the encoding.
+ Return -1 for a continuation character. */
+#define UT8_CHAR_LENGTH(PREFIX_CHAR) \
+ ((unsigned char)(PREFIX_CHAR) < 128 ? 1 \
+ : ((PREFIX_CHAR) & 0x40) == 0 ? -1 \
+ : ((PREFIX_CHAR) & 0x20) == 0 ? 2 \
+ : ((PREFIX_CHAR) & 0x10) == 0 ? 3 \
+ : ((PREFIX_CHAR) & 0x08) == 0 ? 4 : 5)
+
+#endif /* ! GCC_JAVAOP_H */