summaryrefslogtreecommitdiffstats
path: root/libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c
diff options
context:
space:
mode:
Diffstat (limited to 'libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c')
-rw-r--r--libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c b/libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c
index 076f42b86a3..8435c3fdba7 100644
--- a/libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c
+++ b/libjava/classpath/native/jni/java-lang/java_lang_VMDouble.c
@@ -1,5 +1,5 @@
/* VMDouble.c - java.lang.VMDouble native functions
- Copyright (C) 1998, 1999, 2001, 2003, 2004i, 2005
+ Copyright (C) 1998, 1999, 2001, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
This file is part of GNU Classpath.
@@ -123,6 +123,16 @@ Java_java_lang_VMDouble_doubleToLongBits
jlong e, f;
val.d = doubleValue;
+#if defined(__IEEE_BYTES_LITTLE_ENDIAN)
+ /* On little endian ARM processors when using FPA, word order of
+ doubles is still big endian. So take that into account here. When
+ using VFP, word order of doubles follows byte order. */
+
+#define SWAP_DOUBLE(a) (((a) << 32) | (((a) >> 32) & 0x00000000ffffffff))
+
+ val.j = SWAP_DOUBLE(val.j);
+#endif
+
e = val.j & 0x7ff0000000000000LL;
f = val.j & 0x000fffffffffffffLL;
@@ -144,6 +154,11 @@ Java_java_lang_VMDouble_doubleToRawLongBits
{
jvalue val;
val.d = doubleValue;
+
+#if defined(__IEEE_BYTES_LITTLE_ENDIAN)
+ val.j = SWAP_DOUBLE(val.j);
+#endif
+
return val.j;
}
@@ -159,6 +174,11 @@ Java_java_lang_VMDouble_longBitsToDouble
{
jvalue val;
val.j = longValue;
+
+#if defined(__IEEE_BYTES_LITTLE_ENDIAN)
+ val.j = SWAP_DOUBLE(val.j);
+#endif
+
return val.d;
}
OpenPOWER on IntegriCloud