X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fcharset.c;h=abad9015752ded357e9b48b1e7a0e81e6f3828e5;hb=94715c179098ab86bf188fae4a32e2283c5f173f;hp=63722247fc6463386c07e8af9ae87bcb5eb64b56;hpb=28e7fd62340426746f9c896cbc40c5d374ec47aa;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/charset.c b/gdb/charset.c index 63722247fc..abad901575 100644 --- a/gdb/charset.c +++ b/gdb/charset.c @@ -1,6 +1,6 @@ /* Character set conversion support for GDB. - Copyright (C) 2001-2013 Free Software Foundation, Inc. + Copyright (C) 2001-2016 Free Software Foundation, Inc. This file is part of GDB. @@ -20,7 +20,6 @@ #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" @@ -28,9 +27,6 @@ #include "environ.h" #include "arch-utils.h" #include "gdb_vecs.h" - -#include -#include "gdb_string.h" #include #ifdef USE_WIN32API @@ -81,9 +77,13 @@ 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 , @@ -99,29 +99,27 @@ #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. */ 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; } static int @@ -136,31 +134,33 @@ phony_iconv (iconv_t utf_flag, const char **inbuf, size_t *inbytesleft, { 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; } @@ -178,12 +178,11 @@ phony_iconv (iconv_t utf_flag, const char **inbuf, size_t *inbytesleft, *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 @@ -191,8 +190,28 @@ phony_iconv (iconv_t utf_flag, const char **inbuf, size_t *inbytesleft, 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 */ /* The global lists of character sets and translations. */ @@ -283,6 +302,11 @@ set_be_le_names (struct gdbarch *gdbarch) 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; @@ -306,6 +330,7 @@ set_be_le_names (struct gdbarch *gdbarch) target_wide_charset_le_name = charset_enum[i]; } } +# endif /* PHONY_ICONV */ } /* 'Set charset', 'set host-charset', 'set target-charset', 'set @@ -461,7 +486,7 @@ host_hex_value (char c) static void cleanup_iconv (void *p) { - iconv_t *descp = p; + iconv_t *descp = (iconv_t *) p; iconv_close (*descp); } @@ -474,7 +499,7 @@ convert_between_encodings (const char *from, const char *to, 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. */ @@ -490,7 +515,7 @@ convert_between_encodings (const char *from, const char *to, cleanups = make_cleanup (cleanup_iconv, &desc); inleft = num_bytes; - inp = (char *) bytes; + inp = (ICONV_CONST char *) bytes; space_request = num_bytes; @@ -503,14 +528,14 @@ convert_between_encodings (const char *from, const char *to, 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) { @@ -571,7 +596,7 @@ struct wchar_iterator 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; @@ -597,7 +622,7 @@ make_wchar_iterator (const gdb_byte *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; @@ -610,7 +635,7 @@ make_wchar_iterator (const gdb_byte *input, size_t bytes, 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); @@ -640,14 +665,15 @@ wchar_iterate (struct wchar_iterator *iter, 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) { @@ -679,8 +705,7 @@ wchar_iterate (struct wchar_iterator *iter, 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; @@ -953,7 +978,7 @@ extern char your_gdb_wchar_t_is_bogus[(sizeof (gdb_wchar_t) == 2 || 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, @@ -965,7 +990,6 @@ intermediate_encoding (void) iconv_t desc; static const char *stored_result = NULL; char *result; - int i; if (stored_result) return stored_result;