| /* Character set conversion support for GDB. |
| |
| Copyright 2001, 2003 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program 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 2 of the License, or |
| (at your option) any later version. |
| |
| This program 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 this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "defs.h" |
| #include "charset.h" |
| #include "gdbcmd.h" |
| #include "gdb_assert.h" |
| |
| #include <stddef.h> |
| #include "gdb_string.h" |
| #include <ctype.h> |
| |
| #ifdef HAVE_ICONV |
| #include <iconv.h> |
| #endif |
| |
| |
| /* How GDB's character set support works |
| |
| GDB has two global settings: |
| |
| - The `current host character set' is the character set GDB should |
| use in talking to the user, and which (hopefully) the user's |
| terminal knows how to display properly. |
| |
| - The `current target character set' is the character set the |
| program being debugged uses. |
| |
| There are commands to set each of these, and mechanisms for |
| choosing reasonable default values. GDB has a global list of |
| character sets that it can use as its host or target character |
| sets. |
| |
| The header file `charset.h' declares various functions that |
| different pieces of GDB need to perform tasks like: |
| |
| - printing target strings and characters to the user's terminal |
| (mostly target->host conversions), |
| |
| - building target-appropriate representations of strings and |
| characters the user enters in expressions (mostly host->target |
| conversions), |
| |
| and so on. |
| |
| Now, many of these operations are specific to a particular |
| host/target character set pair. If GDB supports N character sets, |
| there are N^2 possible pairs. This means that, the larger GDB's |
| repertoire of character sets gets, the more expensive it gets to add |
| new character sets. |
| |
| To make sure that GDB can do the right thing for every possible |
| pairing of host and target character set, while still allowing |
| GDB's repertoire to scale, we use a two-tiered approach: |
| |
| - We maintain a global table of "translations" --- groups of |
| functions specific to a particular pair of character sets. |
| |
| - However, a translation can be incomplete: some functions can be |
| omitted. Where there is not a translation to specify exactly |
| what function to use, we provide reasonable defaults. The |
| default behaviors try to use the "iconv" library functions, which |
| support a wide range of character sets. However, even if iconv |
| is not available, there are fallbacks to support trivial |
| translations: when the host and target character sets are the |
| same. */ |
| |
| |
| /* The character set and translation structures. */ |
| |
| |
| /* A character set GDB knows about. GDB only supports character sets |
| with stateless encodings, in which every character is one byte |
| long. */ |
| struct charset { |
| |
| /* A singly-linked list of all known charsets. */ |
| struct charset *next; |
| |
| /* The name of the character set. Comparisons on character set |
| names are case-sensitive. */ |
| const char *name; |
| |
| /* Non-zero iff this character set can be used as a host character |
| set. At present, GDB basically assumes that the host character |
| set is a superset of ASCII. */ |
| int valid_host_charset; |
| |
| /* Pointers to charset-specific functions that depend only on a |
| single character set, and data pointers to pass to them. */ |
| int (*host_char_print_literally) (void *baton, |
| int host_char); |
| void *host_char_print_literally_baton; |
| |
| int (*target_char_to_control_char) (void *baton, |
| int target_char, |
| int *target_ctrl_char); |
| void *target_char_to_control_char_baton; |
| }; |
| |
| |
| /* A translation from one character set to another. */ |
| struct translation { |
| |
| /* A singly-linked list of all known translations. */ |
| struct translation *next; |
| |
| /* This structure describes functions going from the FROM character |
| set to the TO character set. Comparisons on character set names |
| are case-sensitive. */ |
| const char *from, *to; |
| |
| /* Pointers to translation-specific functions, and data pointers to |
| pass to them. These pointers can be zero, indicating that GDB |
| should fall back on the default behavior. We hope the default |
| behavior will be correct for many from/to pairs, reducing the |
| number of translations that need to be registered explicitly. */ |
| |
| /* TARGET_CHAR is in the `from' charset. |
| Returns a string in the `to' charset. */ |
| const char *(*c_target_char_has_backslash_escape) (void *baton, |
| int target_char); |
| void *c_target_char_has_backslash_escape_baton; |
| |
| /* HOST_CHAR is in the `from' charset. |
| TARGET_CHAR points to a char in the `to' charset. */ |
| int (*c_parse_backslash) (void *baton, int host_char, int *target_char); |
| void *c_parse_backslash_baton; |
| |
| /* This is used for the host_char_to_target and target_char_to_host |
| functions. */ |
| int (*convert_char) (void *baton, int from, int *to); |
| void *convert_char_baton; |
| }; |
| |
| |
| |
| /* The global lists of character sets and translations. */ |
| |
| |
| #ifndef GDB_DEFAULT_HOST_CHARSET |
| #define GDB_DEFAULT_HOST_CHARSET "ISO-8859-1" |
| #endif |
| |
| #ifndef GDB_DEFAULT_TARGET_CHARSET |
| #define GDB_DEFAULT_TARGET_CHARSET "ISO-8859-1" |
| #endif |
| |
| static const char *host_charset_name = GDB_DEFAULT_HOST_CHARSET; |
| static const char *target_charset_name = GDB_DEFAULT_TARGET_CHARSET; |
| |
| static const char *host_charset_enum[] = |
| { |
| "ASCII", |
| "ISO-8859-1", |
| 0 |
| }; |
| |
| static const char *target_charset_enum[] = |
| { |
| "ASCII", |
| "ISO-8859-1", |
| "EBCDIC-US", |
| "IBM1047", |
| 0 |
| }; |
| |
| /* The global list of all the charsets GDB knows about. */ |
| static struct charset *all_charsets; |
| |
| |
| static void |
| register_charset (struct charset *cs) |
| { |
| struct charset **ptr; |
| |
| /* Put the new charset on the end, so that the list ends up in the |
| same order as the registrations in the _initialize function. */ |
| for (ptr = &all_charsets; *ptr; ptr = &(*ptr)->next) |
| ; |
| |
| cs->next = 0; |
| *ptr = cs; |
| } |
| |
| |
| static struct charset * |
| lookup_charset (const char *name) |
| { |
| struct charset *cs; |
| |
| for (cs = all_charsets; cs; cs = cs->next) |
| if (! strcmp (name, cs->name)) |
| return cs; |
| |
| return NULL; |
| } |
| |
| |
| /* The global list of translations. */ |
| static struct translation *all_translations; |
| |
| |
| static void |
| register_translation (struct translation *t) |
| { |
| t->next = all_translations; |
| all_translations = t; |
| } |
| |
| |
| static struct translation * |
| lookup_translation (const char *from, const char *to) |
| { |
| struct translation *t; |
| |
| for (t = all_translations; t; t = t->next) |
| if (! strcmp (from, t->from) |
| && ! strcmp (to, t->to)) |
| return t; |
| |
| return 0; |
| } |
| |
| |
| |
| /* Constructing charsets. */ |
| |
| /* Allocate, initialize and return a straightforward charset. |
| Use this function, rather than creating the structures yourself, |
| so that we can add new fields to the structure in the future without |
| having to tweak all the old charset descriptions. */ |
| static struct charset * |
| simple_charset (const char *name, |
| int valid_host_charset, |
| int (*host_char_print_literally) (void *baton, int host_char), |
| void *host_char_print_literally_baton, |
| int (*target_char_to_control_char) (void *baton, |
| int target_char, |
| int *target_ctrl_char), |
| void *target_char_to_control_char_baton) |
| { |
| struct charset *cs = xmalloc (sizeof (*cs)); |
| |
| memset (cs, 0, sizeof (*cs)); |
| cs->name = name; |
| cs->valid_host_charset = valid_host_charset; |
| cs->host_char_print_literally = host_char_print_literally; |
| cs->host_char_print_literally_baton = host_char_print_literally_baton; |
| cs->target_char_to_control_char = target_char_to_control_char; |
| cs->target_char_to_control_char_baton = target_char_to_control_char_baton; |
| |
| return cs; |
| } |
| |
| |
| |
| /* ASCII functions. */ |
| |
| static int |
| ascii_print_literally (void *baton, int c) |
| { |
| c &= 0xff; |
| |
| return (0x20 <= c && c <= 0x7e); |
| } |
| |
| |
| static int |
| ascii_to_control (void *baton, int c, int *ctrl_char) |
| { |
| *ctrl_char = (c & 037); |
| return 1; |
| } |
| |
| |
| /* ISO-8859 family functions. */ |
| |
| |
| static int |
| iso_8859_print_literally (void *baton, int c) |
| { |
| c &= 0xff; |
| |
| return ((0x20 <= c && c <= 0x7e) /* ascii printables */ |
| || (! sevenbit_strings && 0xA0 <= c)); /* iso 8859 printables */ |
| } |
| |
| |
| static int |
| iso_8859_to_control (void *baton, int c, int *ctrl_char) |
| { |
| *ctrl_char = (c & 0200) | (c & 037); |
| return 1; |
| } |
| |
| |
| /* Construct an ISO-8859-like character set. */ |
| static struct charset * |
| iso_8859_family_charset (const char *name) |
| { |
| return simple_charset (name, 1, |
| iso_8859_print_literally, 0, |
| iso_8859_to_control, 0); |
| } |
| |
| |
| |
| /* EBCDIC family functions. */ |
| |
| |
| static int |
| ebcdic_print_literally (void *baton, int c) |
| { |
| c &= 0xff; |
| |
| return (64 <= c && c <= 254); |
| } |
| |
| |
| static int |
| ebcdic_to_control (void *baton, int c, int *ctrl_char) |
| { |
| /* There are no control character equivalents in EBCDIC. Use |
| numeric escapes. */ |
| return 0; |
| } |
| |
| |
| /* Construct an EBCDIC-like character set. */ |
| static struct charset * |
| ebcdic_family_charset (const char *name) |
| { |
| return simple_charset (name, 0, |
| ebcdic_print_literally, 0, |
| ebcdic_to_control, 0); |
| } |
| |
| |
| |
| |
| |
| /* Fallback functions using iconv. */ |
| |
| #if defined(HAVE_ICONV) |
| |
| struct cached_iconv { |
| struct charset *from, *to; |
| iconv_t i; |
| }; |
| |
| |
| /* Make sure the iconv cache *CI contains an iconv descriptor |
| translating from FROM to TO. If it already does, fine; otherwise, |
| close any existing descriptor, and open up a new one. On success, |
| return zero; on failure, return -1 and set errno. */ |
| static int |
| check_iconv_cache (struct cached_iconv *ci, |
| struct charset *from, |
| struct charset *to) |
| { |
| iconv_t i; |
| |
| /* Does the cached iconv descriptor match the conversion we're trying |
| to do now? */ |
| if (ci->from == from |
| && ci->to == to |
| && ci->i != (iconv_t) 0) |
| return 0; |
| |
| /* It doesn't. If we actually had any iconv descriptor open at |
| all, close it now. */ |
| if (ci->i != (iconv_t) 0) |
| { |
| i = ci->i; |
| ci->i = (iconv_t) 0; |
| |
| if (iconv_close (i) == -1) |
| error ("Error closing `iconv' descriptor for " |
| "`%s'-to-`%s' character conversion: %s", |
| ci->from->name, ci->to->name, safe_strerror (errno)); |
| } |
| |
| /* Open a new iconv descriptor for the required conversion. */ |
| i = iconv_open (to->name, from->name); |
| if (i == (iconv_t) -1) |
| return -1; |
| |
| ci->i = i; |
| ci->from = from; |
| ci->to = to; |
| |
| return 0; |
| } |
| |
| |
| /* Convert FROM_CHAR using the cached iconv conversion *CI. Return |
| non-zero if the conversion was successful, zero otherwise. */ |
| static int |
| cached_iconv_convert (struct cached_iconv *ci, int from_char, int *to_char) |
| { |
| char from; |
| ICONV_CONST char *from_ptr = &from; |
| char to, *to_ptr = &to; |
| size_t from_left = sizeof (from), to_left = sizeof (to); |
| |
| gdb_assert (ci->i != (iconv_t) 0); |
| |
| from = from_char; |
| if (iconv (ci->i, &from_ptr, &from_left, &to_ptr, &to_left) |
| == (size_t) -1) |
| { |
| /* These all suggest that the input or output character sets |
| have multi-byte encodings of some characters, which means |
| it's unsuitable for use as a GDB character set. We should |
| never have selected it. */ |
| gdb_assert (errno != E2BIG && errno != EINVAL); |
| |
| /* This suggests a bug in the code managing *CI. */ |
| gdb_assert (errno != EBADF); |
| |
| /* This seems to mean that there is no equivalent character in |
| the `to' character set. */ |
| if (errno == EILSEQ) |
| return 0; |
| |
| /* Anything else is mysterious. */ |
| internal_error (__FILE__, __LINE__, |
| "Error converting character `%d' from `%s' to `%s' " |
| "character set: %s", |
| from_char, ci->from->name, ci->to->name, |
| safe_strerror (errno)); |
| } |
| |
| /* If the pointers weren't advanced across the input, that also |
| suggests something was wrong. */ |
| gdb_assert (from_left == 0 && to_left == 0); |
| |
| *to_char = (unsigned char) to; |
| return 1; |
| } |
| |
| |
| static void |
| register_iconv_charsets (void) |
| { |
| /* Here we should check whether various character sets were |
| recognized by the local iconv implementation. |
| |
| The first implementation registered a bunch of character sets |
| recognized by iconv, but then we discovered that iconv on Solaris |
| and iconv on GNU/Linux had no character sets in common. So we |
| replaced them with the hard-coded tables that appear later in the |
| file. */ |
| } |
| |
| #endif /* defined (HAVE_ICONV) */ |
| |
| |
| /* Fallback routines for systems without iconv. */ |
| |
| #if ! defined (HAVE_ICONV) |
| struct cached_iconv { char nothing; }; |
| |
| static int |
| check_iconv_cache (struct cached_iconv *ci, |
| struct charset *from, |
| struct charset *to) |
| { |
| errno = EINVAL; |
| return -1; |
| } |
| |
| static int |
| cached_iconv_convert (struct cached_iconv *ci, int from_char, int *to_char) |
| { |
| /* This function should never be called. */ |
| gdb_assert (0); |
| } |
| |
| static void |
| register_iconv_charsets (void) |
| { |
| } |
| |
| #endif /* ! defined(HAVE_ICONV) */ |
| |
| |
| /* Default trivial conversion functions. */ |
| |
| static int |
| identity_either_char_to_other (void *baton, int either_char, int *other_char) |
| { |
| *other_char = either_char; |
| return 1; |
| } |
| |
| |
| |
| /* Default non-trivial conversion functions. */ |
| |
| |
| static char backslashable[] = "abefnrtv"; |
| static char *backslashed[] = {"a", "b", "e", "f", "n", "r", "t", "v", "0"}; |
| static char represented[] = "\a\b\e\f\n\r\t\v"; |
| |
| |
| /* Translate TARGET_CHAR into the host character set, and see if it |
| matches any of our standard escape sequences. */ |
| static const char * |
| default_c_target_char_has_backslash_escape (void *baton, int target_char) |
| { |
| int host_char; |
| const char *ix; |
| |
| /* If target_char has no equivalent in the host character set, |
| assume it doesn't have a backslashed form. */ |
| if (! target_char_to_host (target_char, &host_char)) |
| return NULL; |
| |
| ix = strchr (represented, host_char); |
| if (ix) |
| return backslashed[ix - represented]; |
| else |
| return NULL; |
| } |
| |
| |
| /* Translate the backslash the way we would in the host character set, |
| and then try to translate that into the target character set. */ |
| static int |
| default_c_parse_backslash (void *baton, int host_char, int *target_char) |
| { |
| const char *ix; |
| |
| ix = strchr (backslashable, host_char); |
| |
| if (! ix) |
| return 0; |
| else |
| return host_char_to_target (represented[ix - backslashable], |
| target_char); |
| } |
| |
| |
| /* Convert using a cached iconv descriptor. */ |
| static int |
| iconv_convert (void *baton, int from_char, int *to_char) |
| { |
| struct cached_iconv *ci = baton; |
| return cached_iconv_convert (ci, from_char, to_char); |
| } |
| |
| |
| |
| /* Conversion tables. */ |
| |
| |
| /* I'd much rather fall back on iconv whenever possible. But the |
| character set names you use with iconv aren't standardized at all, |
| a lot of platforms have really meager character set coverage, etc. |
| I wanted to have at least something we could use to exercise the |
| test suite on all platforms. |
| |
| In the long run, we should have a configure-time process explore |
| somehow which character sets the host platform supports, and some |
| arrangement that allows GDB users to use platform-indepedent names |
| for character sets. */ |
| |
| |
| /* We generated these tables using iconv on a GNU/Linux machine. */ |
| |
| |
| static int ascii_to_iso_8859_1_table[] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 96 */ |
| 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 112 */ |
| 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 128 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int ascii_to_ebcdic_us_table[] = { |
| 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 215,216,217,226,227,228,229,230,231,232,233, -1,224, -1, -1,109, /* 96 */ |
| 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int ascii_to_ibm1047_table[] = { |
| 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 215,216,217,226,227,228,229,230,231,232,233,173,224,189, 95,109, /* 96 */ |
| 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int iso_8859_1_to_ascii_table[] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 96 */ |
| 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 112 */ |
| 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 128 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int iso_8859_1_to_ebcdic_us_table[] = { |
| 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 215,216,217,226,227,228,229,230,231,232,233, -1,224, -1, -1,109, /* 96 */ |
| 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| 32, 33, 34, 35, 36, 21, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27, /* 144 */ |
| 48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62,255, /* 160 */ |
| -1, -1, 74, -1, -1, -1,106, -1, -1, -1, -1, -1, 95, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 208 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 224 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 240 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int iso_8859_1_to_ibm1047_table[] = { |
| 0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31, /* 32 */ |
| 64, 90,127,123, 91,108, 80,125, 77, 93, 92, 78,107, 96, 75, 97, /* 48 */ |
| 240,241,242,243,244,245,246,247,248,249,122, 94, 76,126,110,111, /* 64 */ |
| 124,193,194,195,196,197,198,199,200,201,209,210,211,212,213,214, /* 80 */ |
| 215,216,217,226,227,228,229,230,231,232,233,173,224,189, 95,109, /* 96 */ |
| 121,129,130,131,132,133,134,135,136,137,145,146,147,148,149,150, /* 112 */ |
| 151,152,153,162,163,164,165,166,167,168,169,192, 79,208,161, 7, /* 128 */ |
| 32, 33, 34, 35, 36, 21, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27, /* 144 */ |
| 48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62,255, /* 160 */ |
| 65,170, 74,177,159,178,106,181,187,180,154,138,176,202,175,188, /* 176 */ |
| 144,143,234,250,190,160,182,179,157,218,155,139,183,184,185,171, /* 192 */ |
| 100,101, 98,102, 99,103,158,104,116,113,114,115,120,117,118,119, /* 208 */ |
| 172,105,237,238,235,239,236,191,128,253,254,251,252,186,174, 89, /* 224 */ |
| 68, 69, 66, 70, 67, 71,156, 72, 84, 81, 82, 83, 88, 85, 86, 87, /* 240 */ |
| 140, 73,205,206,203,207,204,225,112,221,222,219,220,141,142,223 /* 256 */ |
| }; |
| |
| |
| static int ebcdic_us_to_ascii_table[] = { |
| 0, 1, 2, 3, -1, 9, -1,127, -1, -1, -1, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, -1, -1, 8, -1, 24, 25, -1, -1, 28, 29, 30, 31, /* 32 */ |
| -1, -1, -1, -1, -1, 10, 23, 27, -1, -1, -1, -1, -1, 5, 6, 7, /* 48 */ |
| -1, -1, 22, -1, -1, -1, -1, 4, -1, -1, -1, -1, 20, 21, -1, 26, /* 64 */ |
| 32, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 46, 60, 40, 43,124, /* 80 */ |
| 38, -1, -1, -1, -1, -1, -1, -1, -1, -1, 33, 36, 42, 41, 59, -1, /* 96 */ |
| 45, 47, -1, -1, -1, -1, -1, -1, -1, -1, -1, 44, 37, 95, 62, 63, /* 112 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| -1, 97, 98, 99,100,101,102,103,104,105, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1,106,107,108,109,110,111,112,113,114, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1,126,115,116,117,118,119,120,121,122, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 92, -1, 83, 84, 85, 86, 87, 88, 89, 90, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int ebcdic_us_to_iso_8859_1_table[] = { |
| 0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19,157,133, 8,135, 24, 25,146,143, 28, 29, 30, 31, /* 32 */ |
| 128,129,130,131,132, 10, 23, 27,136,137,138,139,140, 5, 6, 7, /* 48 */ |
| 144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26, /* 64 */ |
| 32, -1, -1, -1, -1, -1, -1, -1, -1, -1,162, 46, 60, 40, 43,124, /* 80 */ |
| 38, -1, -1, -1, -1, -1, -1, -1, -1, -1, 33, 36, 42, 41, 59,172, /* 96 */ |
| 45, 47, -1, -1, -1, -1, -1, -1, -1, -1,166, 44, 37, 95, 62, 63, /* 112 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| -1, 97, 98, 99,100,101,102,103,104,105, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1,106,107,108,109,110,111,112,113,114, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1,126,115,116,117,118,119,120,121,122, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 92, -1, 83, 84, 85, 86, 87, 88, 89, 90, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, -1, -1, -1, -1, -1,159 /* 256 */ |
| }; |
| |
| |
| static int ebcdic_us_to_ibm1047_table[] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 64, -1, -1, -1, -1, -1, -1, -1, -1, -1, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 80, -1, -1, -1, -1, -1, -1, -1, -1, -1, 90, 91, 92, 93, 94,176, /* 96 */ |
| 96, 97, -1, -1, -1, -1, -1, -1, -1, -1,106,107,108,109,110,111, /* 112 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1,121,122,123,124,125,126,127, /* 128 */ |
| -1,129,130,131,132,133,134,135,136,137, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1,145,146,147,148,149,150,151,152,153, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1,161,162,163,164,165,166,167,168,169, -1, -1, -1, -1, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 192,193,194,195,196,197,198,199,200,201, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 208,209,210,211,212,213,214,215,216,217, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 224, -1,226,227,228,229,230,231,232,233, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 240,241,242,243,244,245,246,247,248,249, -1, -1, -1, -1, -1,255 /* 256 */ |
| }; |
| |
| |
| static int ibm1047_to_ascii_table[] = { |
| 0, 1, 2, 3, -1, 9, -1,127, -1, -1, -1, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, -1, -1, 8, -1, 24, 25, -1, -1, 28, 29, 30, 31, /* 32 */ |
| -1, -1, -1, -1, -1, 10, 23, 27, -1, -1, -1, -1, -1, 5, 6, 7, /* 48 */ |
| -1, -1, 22, -1, -1, -1, -1, 4, -1, -1, -1, -1, 20, 21, -1, 26, /* 64 */ |
| 32, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 46, 60, 40, 43,124, /* 80 */ |
| 38, -1, -1, -1, -1, -1, -1, -1, -1, -1, 33, 36, 42, 41, 59, 94, /* 96 */ |
| 45, 47, -1, -1, -1, -1, -1, -1, -1, -1, -1, 44, 37, 95, 62, 63, /* 112 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| -1, 97, 98, 99,100,101,102,103,104,105, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1,106,107,108,109,110,111,112,113,114, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1,126,115,116,117,118,119,120,121,122, -1, -1, -1, 91, -1, -1, /* 176 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 93, -1, -1, /* 192 */ |
| 123, 65, 66, 67, 68, 69, 70, 71, 72, 73, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 125, 74, 75, 76, 77, 78, 79, 80, 81, 82, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 92, -1, 83, 84, 85, 86, 87, 88, 89, 90, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, -1, -1, -1, -1, -1, -1 /* 256 */ |
| }; |
| |
| |
| static int ibm1047_to_iso_8859_1_table[] = { |
| 0, 1, 2, 3,156, 9,134,127,151,141,142, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19,157,133, 8,135, 24, 25,146,143, 28, 29, 30, 31, /* 32 */ |
| 128,129,130,131,132, 10, 23, 27,136,137,138,139,140, 5, 6, 7, /* 48 */ |
| 144,145, 22,147,148,149,150, 4,152,153,154,155, 20, 21,158, 26, /* 64 */ |
| 32,160,226,228,224,225,227,229,231,241,162, 46, 60, 40, 43,124, /* 80 */ |
| 38,233,234,235,232,237,238,239,236,223, 33, 36, 42, 41, 59, 94, /* 96 */ |
| 45, 47,194,196,192,193,195,197,199,209,166, 44, 37, 95, 62, 63, /* 112 */ |
| 248,201,202,203,200,205,206,207,204, 96, 58, 35, 64, 39, 61, 34, /* 128 */ |
| 216, 97, 98, 99,100,101,102,103,104,105,171,187,240,253,254,177, /* 144 */ |
| 176,106,107,108,109,110,111,112,113,114,170,186,230,184,198,164, /* 160 */ |
| 181,126,115,116,117,118,119,120,121,122,161,191,208, 91,222,174, /* 176 */ |
| 172,163,165,183,169,167,182,188,189,190,221,168,175, 93,180,215, /* 192 */ |
| 123, 65, 66, 67, 68, 69, 70, 71, 72, 73,173,244,246,242,243,245, /* 208 */ |
| 125, 74, 75, 76, 77, 78, 79, 80, 81, 82,185,251,252,249,250,255, /* 224 */ |
| 92,247, 83, 84, 85, 86, 87, 88, 89, 90,178,212,214,210,211,213, /* 240 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57,179,219,220,217,218,159 /* 256 */ |
| }; |
| |
| |
| static int ibm1047_to_ebcdic_us_table[] = { |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 16 */ |
| 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 32 */ |
| 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 48 */ |
| 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 64 */ |
| 64, -1, -1, -1, -1, -1, -1, -1, -1, -1, 74, 75, 76, 77, 78, 79, /* 80 */ |
| 80, -1, -1, -1, -1, -1, -1, -1, -1, -1, 90, 91, 92, 93, 94, -1, /* 96 */ |
| 96, 97, -1, -1, -1, -1, -1, -1, -1, -1,106,107,108,109,110,111, /* 112 */ |
| -1, -1, -1, -1, -1, -1, -1, -1, -1,121,122,123,124,125,126,127, /* 128 */ |
| -1,129,130,131,132,133,134,135,136,137, -1, -1, -1, -1, -1, -1, /* 144 */ |
| -1,145,146,147,148,149,150,151,152,153, -1, -1, -1, -1, -1, -1, /* 160 */ |
| -1,161,162,163,164,165,166,167,168,169, -1, -1, -1, -1, -1, -1, /* 176 */ |
| 95, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* 192 */ |
| 192,193,194,195,196,197,198,199,200,201, -1, -1, -1, -1, -1, -1, /* 208 */ |
| 208,209,210,211,212,213,214,215,216,217, -1, -1, -1, -1, -1, -1, /* 224 */ |
| 224, -1,226,227,228,229,230,231,232,233, -1, -1, -1, -1, -1, -1, /* 240 */ |
| 240,241,242,243,244,245,246,247,248,249, -1, -1, -1, -1, -1,255 /* 256 */ |
| }; |
| |
| |
| static int |
| table_convert_char (void *baton, int from, int *to) |
| { |
| int *table = (int *) baton; |
| |
| if (0 <= from && from <= 255 |
| && table[from] != -1) |
| { |
| *to = table[from]; |
| return 1; |
| } |
| else |
| return 0; |
| } |
| |
| |
| static struct translation * |
| table_translation (const char *from, const char *to, int *table, |
| const char *(*c_target_char_has_backslash_escape) |
| (void *baton, int target_char), |
| void *c_target_char_has_backslash_escape_baton, |
| int (*c_parse_backslash) (void *baton, |
| int host_char, |
| int *target_char), |
| void *c_parse_backslash_baton) |
| { |
| struct translation *t = xmalloc (sizeof (*t)); |
| |
| memset (t, 0, sizeof (*t)); |
| t->from = from; |
| t->to = to; |
| t->c_target_char_has_backslash_escape = c_target_char_has_backslash_escape; |
| t->c_target_char_has_backslash_escape_baton |
| = c_target_char_has_backslash_escape_baton; |
| t->c_parse_backslash = c_parse_backslash; |
| t->c_parse_backslash_baton = c_parse_backslash_baton; |
| t->convert_char = table_convert_char; |
| t->convert_char_baton = (void *) table; |
| |
| return t; |
| } |
| |
| |
| static struct translation * |
| simple_table_translation (const char *from, const char *to, int *table) |
| { |
| return table_translation (from, to, table, 0, 0, 0, 0); |
| } |
| |
| |
| |
| /* Setting and retrieving the host and target charsets. */ |
| |
| |
| /* The current host and target character sets. */ |
| static struct charset *current_host_charset, *current_target_charset; |
| |
| /* The current functions and batons we should use for the functions in |
| charset.h. */ |
| |
| static const char *(*c_target_char_has_backslash_escape_func) |
| (void *baton, int target_char); |
| static void *c_target_char_has_backslash_escape_baton; |
| |
| static int (*c_parse_backslash_func) (void *baton, |
| int host_char, |
| int *target_char); |
| static void *c_parse_backslash_baton; |
| |
| static int (*host_char_to_target_func) (void *baton, |
| int host_char, |
| int *target_char); |
| static void *host_char_to_target_baton; |
| |
| static int (*target_char_to_host_func) (void *baton, |
| int target_char, |
| int *host_char); |
| static void *target_char_to_host_baton; |
| |
| |
| /* Cached iconv conversions, that might be useful to fallback |
| routines. */ |
| static struct cached_iconv cached_iconv_host_to_target; |
| static struct cached_iconv cached_iconv_target_to_host; |
| |
| |
| /* Charset structures manipulation functions. */ |
| |
| static struct charset * |
| lookup_charset_or_error (const char *name) |
| { |
| struct charset *cs = lookup_charset (name); |
| |
| if (! cs) |
| error ("GDB doesn't know of any character set named `%s'.", name); |
| |
| return cs; |
| } |
| |
| static void |
| check_valid_host_charset (struct charset *cs) |
| { |
| if (! cs->valid_host_charset) |
| error ("GDB can't use `%s' as its host character set.", cs->name); |
| } |
| |
| /* Set the host and target character sets to HOST and TARGET. */ |
| static void |
| set_host_and_target_charsets (struct charset *host, struct charset *target) |
| { |
| struct translation *h2t, *t2h; |
| |
| /* If they're not both initialized yet, then just do nothing for |
| now. As soon as we're done running our initialize function, |
| everything will be initialized. */ |
| if (! host || ! target) |
| { |
| current_host_charset = host; |
| current_target_charset = target; |
| return; |
| } |
| |
| h2t = lookup_translation (host->name, target->name); |
| t2h = lookup_translation (target->name, host->name); |
| |
| /* If the translations don't provide conversion functions, make sure |
| iconv can back them up. Do this *before* modifying any state. */ |
| if (host != target) |
| { |
| if (! h2t || ! h2t->convert_char) |
| { |
| if (check_iconv_cache (&cached_iconv_host_to_target, host, target) |
| < 0) |
| error ("GDB can't convert from the `%s' character set to `%s'.", |
| host->name, target->name); |
| } |
| if (! t2h || ! t2h->convert_char) |
| { |
| if (check_iconv_cache (&cached_iconv_target_to_host, target, host) |
| < 0) |
| error ("GDB can't convert from the `%s' character set to `%s'.", |
| target->name, host->name); |
| } |
| } |
| |
| if (t2h && t2h->c_target_char_has_backslash_escape) |
| { |
| c_target_char_has_backslash_escape_func |
| = t2h->c_target_char_has_backslash_escape; |
| c_target_char_has_backslash_escape_baton |
| = t2h->c_target_char_has_backslash_escape_baton; |
| } |
| else |
| c_target_char_has_backslash_escape_func |
| = default_c_target_char_has_backslash_escape; |
| |
| if (h2t && h2t->c_parse_backslash) |
| { |
| c_parse_backslash_func = h2t->c_parse_backslash; |
| c_parse_backslash_baton = h2t->c_parse_backslash_baton; |
| } |
| else |
| c_parse_backslash_func = default_c_parse_backslash; |
| |
| if (h2t && h2t->convert_char) |
| { |
| host_char_to_target_func = h2t->convert_char; |
| host_char_to_target_baton = h2t->convert_char_baton; |
| } |
| else if (host == target) |
| host_char_to_target_func = identity_either_char_to_other; |
| else |
| { |
| host_char_to_target_func = iconv_convert; |
| host_char_to_target_baton = &cached_iconv_host_to_target; |
| } |
| |
| if (t2h && t2h->convert_char) |
| { |
| target_char_to_host_func = t2h->convert_char; |
| target_char_to_host_baton = t2h->convert_char_baton; |
| } |
| else if (host == target) |
| target_char_to_host_func = identity_either_char_to_other; |
| else |
| { |
| target_char_to_host_func = iconv_convert; |
| target_char_to_host_baton = &cached_iconv_target_to_host; |
| } |
| |
| current_host_charset = host; |
| current_target_charset = target; |
| } |
| |
| /* Do the real work of setting the host charset. */ |
| static void |
| set_host_charset (const char *charset) |
| { |
| struct charset *cs = lookup_charset_or_error (charset); |
| check_valid_host_charset (cs); |
| set_host_and_target_charsets (cs, current_target_charset); |
| } |
| |
| /* Do the real work of setting the target charset. */ |
| static void |
| set_target_charset (const char *charset) |
| { |
| struct charset *cs = lookup_charset_or_error (charset); |
| |
| set_host_and_target_charsets (current_host_charset, cs); |
| } |
| |
| |
| /* 'Set charset', 'set host-charset', 'set target-charset', 'show |
| charset' sfunc's. */ |
| |
| /* This is the sfunc for the 'set charset' command. */ |
| static void |
| set_charset_sfunc (char *charset, int from_tty, struct cmd_list_element *c) |
| { |
| struct charset *cs = lookup_charset_or_error (host_charset_name); |
| check_valid_host_charset (cs); |
| /* CAREFUL: set the target charset here as well. */ |
| target_charset_name = host_charset_name; |
| set_host_and_target_charsets (cs, cs); |
| } |
| |
| /* 'set host-charset' command sfunc. We need a wrapper here because |
| the function needs to have a specific signature. */ |
| static void |
| set_host_charset_sfunc (char *charset, int from_tty, |
| struct cmd_list_element *c) |
| { |
| set_host_charset (host_charset_name); |
| } |
| |
| /* Wrapper for the 'set target-charset' command. */ |
| static void |
| set_target_charset_sfunc (char *charset, int from_tty, |
| struct cmd_list_element *c) |
| { |
| set_target_charset (target_charset_name); |
| } |
| |
| /* sfunc for the 'show charset' command. */ |
| static void |
| show_charset (char *arg, int from_tty) |
| { |
| if (current_host_charset == current_target_charset) |
| { |
| printf_filtered ("The current host and target character set is `%s'.\n", |
| host_charset ()); |
| } |
| else |
| { |
| printf_filtered ("The current host character set is `%s'.\n", |
| host_charset ()); |
| printf_filtered ("The current target character set is `%s'.\n", |
| target_charset ()); |
| } |
| } |
| |
| |
| /* Accessor functions. */ |
| |
| const char * |
| host_charset (void) |
| { |
| return current_host_charset->name; |
| } |
| |
| const char * |
| target_charset (void) |
| { |
| return current_target_charset->name; |
| } |
| |
| |
| |
| /* Public character management functions. */ |
| |
| |
| const char * |
| c_target_char_has_backslash_escape (int target_char) |
| { |
| return ((*c_target_char_has_backslash_escape_func) |
| (c_target_char_has_backslash_escape_baton, target_char)); |
| } |
| |
| |
| int |
| c_parse_backslash (int host_char, int *target_char) |
| { |
| return (*c_parse_backslash_func) (c_parse_backslash_baton, |
| host_char, target_char); |
| } |
| |
| |
| int |
| host_char_print_literally (int host_char) |
| { |
| return ((*current_host_charset->host_char_print_literally) |
| (current_host_charset->host_char_print_literally_baton, |
| host_char)); |
| } |
| |
| |
| int |
| target_char_to_control_char (int target_char, int *target_ctrl_char) |
| { |
| return ((*current_target_charset->target_char_to_control_char) |
| (current_target_charset->target_char_to_control_char_baton, |
| target_char, target_ctrl_char)); |
| } |
| |
| |
| int |
| host_char_to_target (int host_char, int *target_char) |
| { |
| return ((*host_char_to_target_func) |
| (host_char_to_target_baton, host_char, target_char)); |
| } |
| |
| |
| int |
| target_char_to_host (int target_char, int *host_char) |
| { |
| return ((*target_char_to_host_func) |
| (target_char_to_host_baton, target_char, host_char)); |
| } |
| |
| |
| |
| /* The charset.c module initialization function. */ |
| |
| extern initialize_file_ftype _initialize_charset; /* -Wmissing-prototype */ |
| |
| void |
| _initialize_charset (void) |
| { |
| struct cmd_list_element *new_cmd; |
| |
| /* Register all the character set GDB knows about. |
| |
| You should use the same names that iconv does, where possible, to |
| take advantage of the iconv-based default behaviors. |
| |
| CAUTION: if you register a character set, you must also register |
| as many translations as are necessary to make that character set |
| interoperate correctly with all the other character sets. We do |
| provide default behaviors when no translation is available, or |
| when a translation's function pointer for a particular operation |
| is zero. Hopefully, these defaults will be correct often enough |
| that we won't need to provide too many translations. */ |
| register_charset (simple_charset ("ASCII", 1, |
| ascii_print_literally, 0, |
| ascii_to_control, 0)); |
| register_charset (iso_8859_family_charset ("ISO-8859-1")); |
| register_charset (ebcdic_family_charset ("EBCDIC-US")); |
| register_charset (ebcdic_family_charset ("IBM1047")); |
| register_iconv_charsets (); |
| |
| { |
| struct { char *from; char *to; int *table; } tlist[] = { |
| { "ASCII", "ISO-8859-1", ascii_to_iso_8859_1_table }, |
| { "ASCII", "EBCDIC-US", ascii_to_ebcdic_us_table }, |
| { "ASCII", "IBM1047", ascii_to_ibm1047_table }, |
| { "ISO-8859-1", "ASCII", iso_8859_1_to_ascii_table }, |
| { "ISO-8859-1", "EBCDIC-US", iso_8859_1_to_ebcdic_us_table }, |
| { "ISO-8859-1", "IBM1047", iso_8859_1_to_ibm1047_table }, |
| { "EBCDIC-US", "ASCII", ebcdic_us_to_ascii_table }, |
| { "EBCDIC-US", "ISO-8859-1", ebcdic_us_to_iso_8859_1_table }, |
| { "EBCDIC-US", "IBM1047", ebcdic_us_to_ibm1047_table }, |
| { "IBM1047", "ASCII", ibm1047_to_ascii_table }, |
| { "IBM1047", "ISO-8859-1", ibm1047_to_iso_8859_1_table }, |
| { "IBM1047", "EBCDIC-US", ibm1047_to_ebcdic_us_table } |
| }; |
| |
| int i; |
| |
| for (i = 0; i < (sizeof (tlist) / sizeof (tlist[0])); i++) |
| register_translation (simple_table_translation (tlist[i].from, |
| tlist[i].to, |
| tlist[i].table)); |
| } |
| |
| set_host_charset (host_charset_name); |
| set_target_charset (target_charset_name); |
| |
| new_cmd = add_set_enum_cmd ("charset", |
| class_support, |
| host_charset_enum, |
| &host_charset_name, |
| "Set the host and target character sets.\n" |
| "The `host character set' is the one used by the system GDB is running on.\n" |
| "The `target character set' is the one used by the program being debugged.\n" |
| "You may only use supersets of ASCII for your host character set; GDB does\n" |
| "not support any others.\n" |
| "To see a list of the character sets GDB supports, type `set charset <TAB>'.", |
| &setlist); |
| |
| /* Note that the sfunc below needs to set target_charset_name, because |
| the 'set charset' command sets two variables. */ |
| set_cmd_sfunc (new_cmd, set_charset_sfunc); |
| /* Don't use set_from_show - need to print some extra info. */ |
| add_cmd ("charset", class_support, show_charset, |
| "Show the host and target character sets.\n" |
| "The `host character set' is the one used by the system GDB is running on.\n" |
| "The `target character set' is the one used by the program being debugged.\n" |
| "You may only use supersets of ASCII for your host character set; GDB does\n" |
| "not support any others.\n" |
| "To see a list of the character sets GDB supports, type `set charset <TAB>'.", |
| &showlist); |
| |
| |
| new_cmd = add_set_enum_cmd ("host-charset", |
| class_support, |
| host_charset_enum, |
| &host_charset_name, |
| "Set the host character set.\n" |
| "The `host character set' is the one used by the system GDB is running on.\n" |
| "You may only use supersets of ASCII for your host character set; GDB does\n" |
| "not support any others.\n" |
| "To see a list of the character sets GDB supports, type `set host-charset <TAB>'.", |
| &setlist); |
| |
| set_cmd_sfunc (new_cmd, set_host_charset_sfunc); |
| |
| add_show_from_set (new_cmd, &showlist); |
| |
| |
| |
| new_cmd = add_set_enum_cmd ("target-charset", |
| class_support, |
| target_charset_enum, |
| &target_charset_name, |
| "Set the target character set.\n" |
| "The `target character set' is the one used by the program being debugged.\n" |
| "GDB translates characters and strings between the host and target\n" |
| "character sets as needed.\n" |
| "To see a list of the character sets GDB supports, type `set target-charset'<TAB>", |
| &setlist); |
| |
| set_cmd_sfunc (new_cmd, set_target_charset_sfunc); |
| add_show_from_set (new_cmd, &showlist); |
| } |