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--- gcc-4.8.2/libjava/gnu/gcj/convert/natIconv.cc.orig 2014-02-18 18:46:14.897880526 +0200
+++ gcc-4.8.2/libjava/gnu/gcj/convert/natIconv.cc 2014-02-18 18:50:08.766613550 +0200
@@ -24,6 +24,13 @@
#ifdef HAVE_ICONV
#include <iconv.h>
+#include <endian.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define UCS2_CHARSET "UCS-2BE"
+#else
+#define UCS2_CHARSET "UCS-2LE"
+#endif
template<typename T>
static inline size_t
@@ -45,7 +52,7 @@
_Jv_GetStringUTFRegion (encoding, 0, encoding->length(), buffer);
buffer[len] = '\0';
- iconv_t h = iconv_open ("UCS-2", buffer);
+ iconv_t h = iconv_open (UCS2_CHARSET, buffer);
if (h == (iconv_t) -1)
throw new ::java::io::UnsupportedEncodingException (encoding);
@@ -99,18 +106,6 @@
throw new ::java::io::CharConversionException ();
}
- if (iconv_byte_swap)
- {
- size_t max = (old_out - outavail) / sizeof (jchar);
- for (size_t i = 0; i < max; ++i)
- {
- // Byte swap.
- jchar c = (((out[outpos + i] & 0xff) << 8)
- | ((out[outpos + i] >> 8) & 0xff));
- outbuf[i] = c;
- }
- }
-
inpos += old_in - inavail;
return (old_out - outavail) / sizeof (jchar);
#else /* HAVE_ICONV */
@@ -145,7 +140,7 @@
_Jv_GetStringUTFRegion (encoding, 0, encoding->length(), buffer);
buffer[len] = '\0';
- iconv_t h = iconv_open (buffer, "UCS-2");
+ iconv_t h = iconv_open (buffer, UCS2_CHARSET);
if (h == (iconv_t) -1)
throw new ::java::io::UnsupportedEncodingException (encoding);
@@ -187,20 +182,6 @@
char *inbuf = (char *) &chars[inpos];
char *outbuf = (char *) &out[count];
- if (iconv_byte_swap)
- {
- // Ugly performance penalty -- don't use losing systems!
- temp_buffer = (jchar *) _Jv_Malloc (inlength * sizeof (jchar));
- for (int i = 0; i < inlength; ++i)
- {
- // Byte swap.
- jchar c = (((chars[inpos + i] & 0xff) << 8)
- | ((chars[inpos + i] >> 8) & 0xff));
- temp_buffer[i] = c;
- }
- inbuf = (char *) temp_buffer;
- }
-
size_t loop_old_in = old_in;
while (1)
{
@@ -252,44 +233,7 @@
jboolean
gnu::gcj::convert::IOConverter::iconv_init (void)
{
- // Some versions of iconv() always return their UCS-2 results in
- // big-endian order, and they also require UCS-2 inputs to be in
- // big-endian order. For instance, glibc 2.1.3 does this. If the
- // UTF-8=>UCS-2 iconv converter has this feature, then we assume
- // that all UCS-2 converters do. (This might not be the best
- // heuristic, but is is all we've got.)
- jboolean result = false;
-#ifdef HAVE_ICONV
- iconv_t handle = iconv_open ("UCS-2", "UTF-8");
- if (handle != (iconv_t) -1)
- {
- jchar c;
- unsigned char in[4];
- char *inp, *outp;
- size_t inc, outc, r;
-
- // This is the UTF-8 encoding of \ufeff. At least Tru64 UNIX libiconv
- // needs the trailing NUL byte, otherwise iconv fails with EINVAL.
- in[0] = 0xef;
- in[1] = 0xbb;
- in[2] = 0xbf;
- in[3] = 0x00;
-
- inp = (char *) in;
- inc = 4;
- outp = (char *) &c;
- outc = 2;
-
- r = iconv_adapter (iconv, handle, &inp, &inc, &outp, &outc);
- // Conversion must be complete for us to use the result.
- if (r != (size_t) -1 && inc == 0 && outc == 0)
- result = (c != 0xfeff);
-
- // Release iconv handle.
- iconv_close (handle);
- }
-#endif /* HAVE_ICONV */
- return result;
+ return false;
}
void
|
