/* Character set conversion support for GDB.
- Copyright (C) 2001, 2003, 2007-2012 Free Software Foundation, Inc.
+ Copyright (C) 2001-2016 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "charset.h"
#include "gdbcmd.h"
-#include "gdb_assert.h"
#include "gdb_obstack.h"
#include "gdb_wait.h"
#include "charset-list.h"
#include "environ.h"
#include "arch-utils.h"
#include "gdb_vecs.h"
-
-#include <stddef.h>
-#include "gdb_string.h"
#include <ctype.h>
#ifdef USE_WIN32API
arrange for there to be a single available character set. */
#undef GDB_DEFAULT_HOST_CHARSET
-#define GDB_DEFAULT_HOST_CHARSET "ISO-8859-1"
-#define GDB_DEFAULT_TARGET_CHARSET "ISO-8859-1"
-#define GDB_DEFAULT_TARGET_WIDE_CHARSET "ISO-8859-1"
+#ifdef USE_WIN32API
+# define GDB_DEFAULT_HOST_CHARSET "CP1252"
+#else
+# define GDB_DEFAULT_HOST_CHARSET "ISO-8859-1"
+#endif
+#define GDB_DEFAULT_TARGET_CHARSET GDB_DEFAULT_HOST_CHARSET
+#define GDB_DEFAULT_TARGET_WIDE_CHARSET "UTF-32"
#undef DEFAULT_CHARSET_NAMES
#define DEFAULT_CHARSET_NAMES GDB_DEFAULT_HOST_CHARSET ,
#undef ICONV_CONST
#define ICONV_CONST const
-/* Some systems don't have EILSEQ, so we define it here, but not as
- EINVAL, because callers of `iconv' want to distinguish EINVAL and
- EILSEQ. This is what iconv.h from libiconv does as well. Note
- that wchar.h may also define EILSEQ, so this needs to be after we
- include wchar.h, which happens in defs.h through gdb_wchar.h. */
-#ifndef EILSEQ
-#define EILSEQ ENOENT
-#endif
+/* We allow conversions from UTF-32, wchar_t, and the host charset.
+ We allow conversions to wchar_t and the host charset.
+ Return 1 if we are converting from UTF-32BE, 2 if from UTF32-LE,
+ 0 otherwise. This is used as a flag in calls to iconv. */
-iconv_t
+static iconv_t
phony_iconv_open (const char *to, const char *from)
{
- /* We allow conversions from UTF-32BE, wchar_t, and the host charset.
- We allow conversions to wchar_t and the host charset. */
- if (strcmp (from, "UTF-32BE") && strcmp (from, "wchar_t")
- && strcmp (from, GDB_DEFAULT_HOST_CHARSET))
- return -1;
if (strcmp (to, "wchar_t") && strcmp (to, GDB_DEFAULT_HOST_CHARSET))
return -1;
- /* Return 1 if we are converting from UTF-32BE, 0 otherwise. This is
- used as a flag in calls to iconv. */
- return !strcmp (from, "UTF-32BE");
+ if (!strcmp (from, "UTF-32BE") || !strcmp (from, "UTF-32"))
+ return 1;
+
+ if (!strcmp (from, "UTF-32LE"))
+ return 2;
+
+ if (strcmp (from, "wchar_t") && strcmp (from, GDB_DEFAULT_HOST_CHARSET))
+ return -1;
+
+ return 0;
}
-int
+static int
phony_iconv_close (iconv_t arg)
{
return 0;
}
-size_t
+static size_t
phony_iconv (iconv_t utf_flag, const char **inbuf, size_t *inbytesleft,
char **outbuf, size_t *outbytesleft)
{
if (utf_flag)
{
+ enum bfd_endian endian
+ = utf_flag == 1 ? BFD_ENDIAN_BIG : BFD_ENDIAN_LITTLE;
while (*inbytesleft >= 4)
{
- size_t j;
- unsigned long c = 0;
-
- for (j = 0; j < 4; ++j)
- {
- c <<= 8;
- c += (*inbuf)[j] & 0xff;
- }
+ unsigned long c
+ = extract_unsigned_integer ((const gdb_byte *)*inbuf, 4, endian);
if (c >= 256)
{
errno = EILSEQ;
return -1;
}
+ if (*outbytesleft < 1)
+ {
+ errno = E2BIG;
+ return -1;
+ }
**outbuf = c & 0xff;
++*outbuf;
--*outbytesleft;
- ++*inbuf;
+ *inbuf += 4;
*inbytesleft -= 4;
}
- if (*inbytesleft < 4)
+ if (*inbytesleft)
{
+ /* Partial sequence on input. */
errno = EINVAL;
return -1;
}
*outbuf += amt;
*inbytesleft -= amt;
*outbytesleft -= amt;
- }
-
- if (*inbytesleft)
- {
- errno = E2BIG;
- return -1;
+ if (*inbytesleft)
+ {
+ errno = E2BIG;
+ return -1;
+ }
}
/* The number of non-reversible conversions -- but they were all
return 0;
}
-#endif
+#else /* PHONY_ICONV */
+
+/* On systems that don't have EILSEQ, GNU iconv's iconv.h defines it
+ to ENOENT, while gnulib defines it to a different value. Always
+ map ENOENT to gnulib's EILSEQ, leaving callers agnostic. */
+
+static size_t
+gdb_iconv (iconv_t utf_flag, ICONV_CONST char **inbuf, size_t *inbytesleft,
+ char **outbuf, size_t *outbytesleft)
+{
+ size_t ret;
+
+ ret = iconv (utf_flag, inbuf, inbytesleft, outbuf, outbytesleft);
+ if (errno == ENOENT)
+ errno = EILSEQ;
+ return ret;
+}
+
+#undef iconv
+#define iconv gdb_iconv
+#endif /* PHONY_ICONV */
\f
/* The global lists of character sets and translations. */
return;
be_le_arch = gdbarch;
+#ifdef PHONY_ICONV
+ /* Match the wide charset names recognized by phony_iconv_open. */
+ target_wide_charset_le_name = "UTF-32LE";
+ target_wide_charset_be_name = "UTF-32BE";
+#else
target_wide_charset_le_name = NULL;
target_wide_charset_be_name = NULL;
target_wide_charset_le_name = charset_enum[i];
}
}
+# endif /* PHONY_ICONV */
}
/* 'Set charset', 'set host-charset', 'set target-charset', 'set
static void
cleanup_iconv (void *p)
{
- iconv_t *descp = p;
+ iconv_t *descp = (iconv_t *) p;
iconv_close (*descp);
}
iconv_t desc;
struct cleanup *cleanups;
size_t inleft;
- char *inp;
+ ICONV_CONST char *inp;
unsigned int space_request;
/* Often, the host and target charsets will be the same. */
cleanups = make_cleanup (cleanup_iconv, &desc);
inleft = num_bytes;
- inp = (char *) bytes;
+ inp = (ICONV_CONST char *) bytes;
space_request = num_bytes;
old_size = obstack_object_size (output);
obstack_blank (output, space_request);
- outp = obstack_base (output) + old_size;
+ outp = (char *) obstack_base (output) + old_size;
outleft = space_request;
- r = iconv (desc, (ICONV_CONST char **) &inp, &inleft, &outp, &outleft);
+ r = iconv (desc, &inp, &inleft, &outp, &outleft);
/* Now make sure that the object on the obstack only includes
bytes we have converted. */
- obstack_blank (output, - (int) outleft);
+ obstack_blank_fast (output, -outleft);
if (r == (size_t) -1)
{
{
char octal[5];
- sprintf (octal, "\\%.3o", *inp & 0xff);
+ xsnprintf (octal, sizeof (octal), "\\%.3o", *inp & 0xff);
obstack_grow_str (output, octal);
++inp;
iconv_t desc;
/* The input string. This is updated as convert characters. */
- char *input;
+ const gdb_byte *input;
/* The number of bytes remaining in the input. */
size_t bytes;
result = XNEW (struct wchar_iterator);
result->desc = desc;
- result->input = (char *) input;
+ result->input = input;
result->bytes = bytes;
result->width = width;
static void
do_cleanup_iterator (void *p)
{
- struct wchar_iterator *iter = p;
+ struct wchar_iterator *iter = (struct wchar_iterator *) p;
iconv_close (iter->desc);
xfree (iter->out);
out_request = 1;
while (iter->bytes > 0)
{
+ ICONV_CONST char *inptr = (ICONV_CONST char *) iter->input;
char *outptr = (char *) &iter->out[0];
- char *orig_inptr = iter->input;
+ const gdb_byte *orig_inptr = iter->input;
size_t orig_in = iter->bytes;
size_t out_avail = out_request * sizeof (gdb_wchar_t);
size_t num;
- size_t r = iconv (iter->desc,
- (ICONV_CONST char **) &iter->input,
- &iter->bytes, &outptr, &out_avail);
+ size_t r = iconv (iter->desc, &inptr, &iter->bytes, &outptr, &out_avail);
+
+ iter->input = (gdb_byte *) inptr;
if (r == (size_t) -1)
{
if (out_request > iter->out_size)
{
iter->out_size = out_request;
- iter->out = xrealloc (iter->out,
- out_request * sizeof (gdb_wchar_t));
+ iter->out = XRESIZEVEC (gdb_wchar_t, iter->out, out_request);
}
continue;
parse the glibc and libiconv formats; feel free to add others
as needed. */
- while (!feof (in))
+ while (in != NULL && !feof (in))
{
/* The size of buf is chosen arbitrarily. */
char buf[1024];
if (fail)
{
/* Some error occurred, so drop the vector. */
- int ix;
- char *elt;
- for (ix = 0; VEC_iterate (char_ptr, charsets, ix, elt); ++ix)
- xfree (elt);
- VEC_truncate (char_ptr, charsets, 0);
+ free_char_ptr_vec (charsets);
+ charsets = NULL;
}
else
VEC_safe_push (char_ptr, charsets, NULL);
|| sizeof (gdb_wchar_t) == 4)
? 1 : -1];
-/* intermediate_encoding returns the charset unsed internally by
+/* intermediate_encoding returns the charset used internally by
GDB to convert between target and host encodings. As the test above
compiled, sizeof (gdb_wchar_t) is either 2 or 4 bytes.
UTF-16/32 is tested first, UCS-2/4 is tested as a second option,
iconv_t desc;
static const char *stored_result = NULL;
char *result;
- int i;
if (stored_result)
return stored_result;
projects / deliverable / binutils-gdb.git / blobdiff