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Diffstat (limited to 'gdb/valprint.c')
| -rw-r--r-- | gdb/valprint.c | 1063 |
1 files changed, 0 insertions, 1063 deletions
diff --git a/gdb/valprint.c b/gdb/valprint.c deleted file mode 100644 index c5d01b1..0000000 --- a/gdb/valprint.c +++ /dev/null @@ -1,1063 +0,0 @@ -/* Print values for GDB, the GNU debugger. - Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994 - 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 "gdb_string.h" -#include "symtab.h" -#include "gdbtypes.h" -#include "value.h" -#include "gdbcore.h" -#include "gdbcmd.h" -#include "target.h" -#include "obstack.h" -#include "language.h" -#include "demangle.h" -#include "annotate.h" -#include "valprint.h" - -#include <errno.h> - -/* Prototypes for local functions */ - -static void -print_hex_chars PARAMS ((GDB_FILE *, unsigned char *, unsigned int)); - -static void -show_print PARAMS ((char *, int)); - -static void -set_print PARAMS ((char *, int)); - -static void -set_radix PARAMS ((char *, int)); - -static void -show_radix PARAMS ((char *, int)); - -static void -set_input_radix PARAMS ((char *, int, struct cmd_list_element *)); - -static void -set_input_radix_1 PARAMS ((int, unsigned)); - -static void -set_output_radix PARAMS ((char *, int, struct cmd_list_element *)); - -static void -set_output_radix_1 PARAMS ((int, unsigned)); - -/* Maximum number of chars to print for a string pointer value or vector - contents, or UINT_MAX for no limit. Note that "set print elements 0" - stores UINT_MAX in print_max, which displays in a show command as - "unlimited". */ - -unsigned int print_max; -#define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */ - -/* Default input and output radixes, and output format letter. */ - -unsigned input_radix = 10; -unsigned output_radix = 10; -int output_format = 0; - -/* Print repeat counts if there are more than this many repetitions of an - element in an array. Referenced by the low level language dependent - print routines. */ - -unsigned int repeat_count_threshold = 10; - -/* If nonzero, stops printing of char arrays at first null. */ - -int stop_print_at_null; - -/* Controls pretty printing of structures. */ - -int prettyprint_structs; - -/* Controls pretty printing of arrays. */ - -int prettyprint_arrays; - -/* If nonzero, causes unions inside structures or other unions to be - printed. */ - -int unionprint; /* Controls printing of nested unions. */ - -/* If nonzero, causes machine addresses to be printed in certain contexts. */ - -int addressprint; /* Controls printing of machine addresses */ - - -/* Print data of type TYPE located at VALADDR (within GDB), which came from - the inferior at address ADDRESS, onto stdio stream STREAM according to - FORMAT (a letter, or 0 for natural format using TYPE). - - If DEREF_REF is nonzero, then dereference references, otherwise just print - them like pointers. - - The PRETTY parameter controls prettyprinting. - - If the data are a string pointer, returns the number of string characters - printed. - - FIXME: The data at VALADDR is in target byte order. If gdb is ever - enhanced to be able to debug more than the single target it was compiled - for (specific CPU type and thus specific target byte ordering), then - either the print routines are going to have to take this into account, - or the data is going to have to be passed into here already converted - to the host byte ordering, whichever is more convenient. */ - - -int -val_print (type, valaddr, address, stream, format, deref_ref, recurse, pretty) - struct type *type; - char *valaddr; - CORE_ADDR address; - GDB_FILE *stream; - int format; - int deref_ref; - int recurse; - enum val_prettyprint pretty; -{ - struct type *real_type = check_typedef (type); - if (pretty == Val_pretty_default) - { - pretty = prettyprint_structs ? Val_prettyprint : Val_no_prettyprint; - } - - QUIT; - - /* Ensure that the type is complete and not just a stub. If the type is - only a stub and we can't find and substitute its complete type, then - print appropriate string and return. */ - - if (TYPE_FLAGS (real_type) & TYPE_FLAG_STUB) - { - fprintf_filtered (stream, "<incomplete type>"); - gdb_flush (stream); - return (0); - } - - return (LA_VAL_PRINT (type, valaddr, address, stream, format, deref_ref, - recurse, pretty)); -} - -/* Print the value VAL in C-ish syntax on stream STREAM. - FORMAT is a format-letter, or 0 for print in natural format of data type. - If the object printed is a string pointer, returns - the number of string bytes printed. */ - -int -value_print (val, stream, format, pretty) - value_ptr val; - GDB_FILE *stream; - int format; - enum val_prettyprint pretty; -{ - if (val == 0) - { - printf_filtered ("<address of value unknown>"); - return 0; - } - if (VALUE_OPTIMIZED_OUT (val)) - { - printf_filtered ("<value optimized out>"); - return 0; - } - return LA_VALUE_PRINT (val, stream, format, pretty); -} - -/* Called by various <lang>_val_print routines to print - TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the - value. STREAM is where to print the value. */ - -void -val_print_type_code_int (type, valaddr, stream) - struct type *type; - char *valaddr; - GDB_FILE *stream; -{ - if (TYPE_LENGTH (type) > sizeof (LONGEST)) - { - LONGEST val; - - if (TYPE_UNSIGNED (type) - && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type), - &val)) - { - print_longest (stream, 'u', 0, val); - } - else - { - /* Signed, or we couldn't turn an unsigned value into a - LONGEST. For signed values, one could assume two's - complement (a reasonable assumption, I think) and do - better than this. */ - print_hex_chars (stream, (unsigned char *) valaddr, - TYPE_LENGTH (type)); - } - } - else - { -#ifdef PRINT_TYPELESS_INTEGER - PRINT_TYPELESS_INTEGER (stream, type, unpack_long (type, valaddr)); -#else - print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, - unpack_long (type, valaddr)); -#endif - } -} - -/* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g. - The raison d'etre of this function is to consolidate printing of LONG_LONG's - into this one function. Some platforms have long longs but don't have a - printf() that supports "ll" in the format string. We handle these by seeing - if the number is actually a long, and if not we just bail out and print the - number in hex. The format chars b,h,w,g are from - print_scalar_formatted(). If USE_LOCAL, format it according to the current - language (this should be used for most integers which GDB prints, the - exception is things like protocols where the format of the integer is - a protocol thing, not a user-visible thing). */ - -void -print_longest (stream, format, use_local, val_long) - GDB_FILE *stream; - int format; - int use_local; - LONGEST val_long; -{ -#if defined (CC_HAS_LONG_LONG) && !defined (PRINTF_HAS_LONG_LONG) - long vtop, vbot; - unsigned int ui_max = UINT_MAX; - unsigned long long val_ulonglong; - - /* Do shift in two operations so that if sizeof (long) == sizeof (LONGEST) - we can avoid warnings from picky compilers about shifts >= the size of - the shiftee in bits */ - vtop = val_long >> (sizeof (long) * HOST_CHAR_BIT - 1); - vtop >>= 1; - vbot = (long) val_long; - val_ulonglong = (unsigned long long) val_long; - switch (format) - { - case 'd': - if (val_long < INT_MIN || val_long > INT_MAX) - { - if (sizeof (long long) > sizeof (long)) - { - fprintf_filtered (stream, "0x%lx%08lx", vtop, vbot); - } - else - { - fprintf_filtered (stream, "%d", vbot); - } - return; - } - break; - case 'x': - if (val_ulonglong > ui_max) - { - if (sizeof (long long) > sizeof (long)) - { - fprintf_filtered (stream, "0x%lx%08lx", vtop, vbot); - } - else - { - fprintf_filtered (stream, "0x%lx", vbot); - } - return; - } - break; - case 'u': - if (val_ulonglong > ui_max) - { - if (sizeof (long long) > sizeof (long)) - { - fprintf_filtered (stream, "0x%lx%08lx", vtop, vbot); - } - else - { - fprintf_filtered (stream, "%lu", (unsigned long) vbot); - } - return; - } - break; - } -#endif - -#ifdef PRINTF_HAS_LONG_LONG - switch (format) - { - case 'd': - fprintf_filtered (stream, - use_local ? local_decimal_format_custom ("ll") - : "%lld", - val_long); - break; - case 'u': - fprintf_filtered (stream, "%llu", val_long); - break; - case 'x': - fprintf_filtered (stream, - use_local ? local_hex_format_custom ("ll") - : "%llx", - val_long); - break; - case 'o': - fprintf_filtered (stream, - use_local ? local_octal_format_custom ("ll") - : "%llo", - val_long); - break; - case 'b': - fprintf_filtered (stream, local_hex_format_custom ("02ll"), val_long); - break; - case 'h': - fprintf_filtered (stream, local_hex_format_custom ("04ll"), val_long); - break; - case 'w': - fprintf_filtered (stream, local_hex_format_custom ("08ll"), val_long); - break; - case 'g': - fprintf_filtered (stream, local_hex_format_custom ("016ll"), val_long); - break; - default: - abort (); - } -#else /* !PRINTF_HAS_LONG_LONG */ - /* In the following it is important to coerce (val_long) to a long. It does - nothing if !LONG_LONG, but it will chop off the top half (which we know - we can ignore) if the host supports long longs. */ - - switch (format) - { - case 'd': - fprintf_filtered (stream, - use_local ? local_decimal_format_custom ("l") - : "%ld", - (long) val_long); - break; - case 'u': - fprintf_filtered (stream, "%lu", (unsigned long) val_long); - break; - case 'x': - fprintf_filtered (stream, - use_local ? local_hex_format_custom ("l") - : "%lx", - (long) val_long); - break; - case 'o': - fprintf_filtered (stream, - use_local ? local_octal_format_custom ("l") - : "%lo", - (long) val_long); - break; - case 'b': - fprintf_filtered (stream, local_hex_format_custom ("02l"), - (long) val_long); - break; - case 'h': - fprintf_filtered (stream, local_hex_format_custom ("04l"), - (long) val_long); - break; - case 'w': - fprintf_filtered (stream, local_hex_format_custom ("08l"), - (long) val_long); - break; - case 'g': - fprintf_filtered (stream, local_hex_format_custom ("016l"), - (long) val_long); - break; - default: - abort (); - } -#endif /* !PRINTF_HAS_LONG_LONG */ -} - -/* This used to be a macro, but I don't think it is called often enough - to merit such treatment. */ -/* Convert a LONGEST to an int. This is used in contexts (e.g. number of - arguments to a function, number in a value history, register number, etc.) - where the value must not be larger than can fit in an int. */ - -int -longest_to_int (arg) - LONGEST arg; -{ - - /* This check is in case a system header has botched the - definition of INT_MIN, like on BSDI. */ - if (sizeof (LONGEST) <= sizeof (int)) - return arg; - - if (arg > INT_MAX) - error ("Value is larger than largest signed integer."); - if (arg < INT_MIN) - error ("Value is smaller than smallest signed integer."); - - return arg; -} - -/* Print a floating point value of type TYPE, pointed to in GDB by VALADDR, - on STREAM. */ - -void -print_floating (valaddr, type, stream) - char *valaddr; - struct type *type; - GDB_FILE *stream; -{ - DOUBLEST doub; - int inv; - unsigned len = TYPE_LENGTH (type); - -#if defined (IEEE_FLOAT) - - /* Check for NaN's. Note that this code does not depend on us being - on an IEEE conforming system. It only depends on the target - machine using IEEE representation. This means (a) - cross-debugging works right, and (2) IEEE_FLOAT can (and should) - be defined for systems like the 68881, which uses IEEE - representation, but is not IEEE conforming. */ - - { - unsigned long low, high; - /* Is the sign bit 0? */ - int nonnegative; - /* Is it is a NaN (i.e. the exponent is all ones and - the fraction is nonzero)? */ - int is_nan; - - if (len == 4) - { - /* It's single precision. */ - /* Assume that floating point byte order is the same as - integer byte order. */ - low = extract_unsigned_integer (valaddr, 4); - nonnegative = ((low & 0x80000000) == 0); - is_nan = ((((low >> 23) & 0xFF) == 0xFF) - && 0 != (low & 0x7FFFFF)); - low &= 0x7fffff; - high = 0; - } - else if (len == 8) - { - /* It's double precision. Get the high and low words. */ - - /* Assume that floating point byte order is the same as - integer byte order. */ - if (TARGET_BYTE_ORDER == BIG_ENDIAN) - { - low = extract_unsigned_integer (valaddr + 4, 4); - high = extract_unsigned_integer (valaddr, 4); - } - else - { - low = extract_unsigned_integer (valaddr, 4); - high = extract_unsigned_integer (valaddr + 4, 4); - } - nonnegative = ((high & 0x80000000) == 0); - is_nan = (((high >> 20) & 0x7ff) == 0x7ff - && ! ((((high & 0xfffff) == 0)) && (low == 0))); - high &= 0xfffff; - } - else - /* Extended. We can't detect NaNs for extendeds yet. Also note - that currently extendeds get nuked to double in - REGISTER_CONVERTIBLE. */ - is_nan = 0; - - if (is_nan) - { - /* The meaning of the sign and fraction is not defined by IEEE. - But the user might know what they mean. For example, they - (in an implementation-defined manner) distinguish between - signaling and quiet NaN's. */ - if (high) - fprintf_filtered (stream, "-NaN(0x%lx%.8lx)" + nonnegative, - high, low); - else - fprintf_filtered (stream, "-NaN(0x%lx)" + nonnegative, low); - return; - } - } -#endif /* IEEE_FLOAT. */ - - doub = unpack_double (type, valaddr, &inv); - if (inv) - { - fprintf_filtered (stream, "<invalid float value>"); - return; - } - - if (len < sizeof (double)) - fprintf_filtered (stream, "%.9g", (double) doub); - else if (len == sizeof (double)) - fprintf_filtered (stream, "%.17g", (double) doub); - else -#ifdef PRINTF_HAS_LONG_DOUBLE - fprintf_filtered (stream, "%.35Lg", doub); -#else - /* This at least wins with values that are representable as doubles */ - fprintf_filtered (stream, "%.17g", (double) doub); -#endif -} - -/* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */ - -static void -print_hex_chars (stream, valaddr, len) - GDB_FILE *stream; - unsigned char *valaddr; - unsigned len; -{ - unsigned char *p; - - /* FIXME: We should be not printing leading zeroes in most cases. */ - - fprintf_filtered (stream, local_hex_format_prefix ()); - if (TARGET_BYTE_ORDER == BIG_ENDIAN) - { - for (p = valaddr; - p < valaddr + len; - p++) - { - fprintf_filtered (stream, "%02x", *p); - } - } - else - { - for (p = valaddr + len - 1; - p >= valaddr; - p--) - { - fprintf_filtered (stream, "%02x", *p); - } - } - fprintf_filtered (stream, local_hex_format_suffix ()); -} - -/* Called by various <lang>_val_print routines to print elements of an - array in the form "<elem1>, <elem2>, <elem3>, ...". - - (FIXME?) Assumes array element separator is a comma, which is correct - for all languages currently handled. - (FIXME?) Some languages have a notation for repeated array elements, - perhaps we should try to use that notation when appropriate. - */ - -void -val_print_array_elements (type, valaddr, address, stream, format, deref_ref, - recurse, pretty, i) - struct type *type; - char *valaddr; - CORE_ADDR address; - GDB_FILE *stream; - int format; - int deref_ref; - int recurse; - enum val_prettyprint pretty; - unsigned int i; -{ - unsigned int things_printed = 0; - unsigned len; - struct type *elttype; - unsigned eltlen; - /* Position of the array element we are examining to see - whether it is repeated. */ - unsigned int rep1; - /* Number of repetitions we have detected so far. */ - unsigned int reps; - - elttype = TYPE_TARGET_TYPE (type); - eltlen = TYPE_LENGTH (check_typedef (elttype)); - len = TYPE_LENGTH (type) / eltlen; - - annotate_array_section_begin (i, elttype); - - for (; i < len && things_printed < print_max; i++) - { - if (i != 0) - { - if (prettyprint_arrays) - { - fprintf_filtered (stream, ",\n"); - print_spaces_filtered (2 + 2 * recurse, stream); - } - else - { - fprintf_filtered (stream, ", "); - } - } - wrap_here (n_spaces (2 + 2 * recurse)); - - rep1 = i + 1; - reps = 1; - while ((rep1 < len) && - !memcmp (valaddr + i * eltlen, valaddr + rep1 * eltlen, eltlen)) - { - ++reps; - ++rep1; - } - - if (reps > repeat_count_threshold) - { - val_print (elttype, valaddr + i * eltlen, 0, stream, format, - deref_ref, recurse + 1, pretty); - annotate_elt_rep (reps); - fprintf_filtered (stream, " <repeats %u times>", reps); - annotate_elt_rep_end (); - - i = rep1 - 1; - things_printed += repeat_count_threshold; - } - else - { - val_print (elttype, valaddr + i * eltlen, 0, stream, format, - deref_ref, recurse + 1, pretty); - annotate_elt (); - things_printed++; - } - } - annotate_array_section_end (); - if (i < len) - { - fprintf_filtered (stream, "..."); - } -} - -/* Print a string from the inferior, starting at ADDR and printing up to LEN - characters, to STREAM. If LEN is zero, printing stops at the first null - byte, otherwise printing proceeds (including null bytes) until either - print_max or LEN characters have been printed, whichever is smaller. */ - -/* FIXME: All callers supply LEN of zero. Supplying a non-zero LEN is - pointless, this routine just then becomes a convoluted version of - target_read_memory_partial. Removing all the LEN stuff would simplify - this routine enormously. - - FIXME: Use target_read_string. */ - -int -val_print_string (addr, len, stream) - CORE_ADDR addr; - unsigned int len; - GDB_FILE *stream; -{ - int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */ - int errcode; /* Errno returned from bad reads. */ - unsigned int fetchlimit; /* Maximum number of bytes to fetch. */ - unsigned int nfetch; /* Bytes to fetch / bytes fetched. */ - unsigned int chunksize; /* Size of each fetch, in bytes. */ - unsigned int bufsize; /* Size of current fetch buffer. */ - char *buffer = NULL; /* Dynamically growable fetch buffer. */ - char *bufptr; /* Pointer to next available byte in buffer. */ - char *limit; /* First location past end of fetch buffer. */ - struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */ - char peekchar; /* Place into which we can read one char. */ - - /* First we need to figure out the limit on the number of characters we are - going to attempt to fetch and print. This is actually pretty simple. If - LEN is nonzero, then the limit is the minimum of LEN and print_max. If - LEN is zero, then the limit is print_max. This is true regardless of - whether print_max is zero, UINT_MAX (unlimited), or something in between, - because finding the null byte (or available memory) is what actually - limits the fetch. */ - - fetchlimit = (len == 0 ? print_max : min (len, print_max)); - - /* Now decide how large of chunks to try to read in one operation. This - is also pretty simple. If LEN is nonzero, then we want fetchlimit bytes, - so we might as well read them all in one operation. If LEN is zero, we - are looking for a null terminator to end the fetching, so we might as - well read in blocks that are large enough to be efficient, but not so - large as to be slow if fetchlimit happens to be large. So we choose the - minimum of 8 and fetchlimit. We used to use 200 instead of 8 but - 200 is way too big for remote debugging over a serial line. */ - - chunksize = (len == 0 ? min (8, fetchlimit) : fetchlimit); - - /* Loop until we either have all the characters to print, or we encounter - some error, such as bumping into the end of the address space. */ - - bufsize = 0; - do { - QUIT; - /* Figure out how much to fetch this time, and grow the buffer to fit. */ - nfetch = min (chunksize, fetchlimit - bufsize); - bufsize += nfetch; - if (buffer == NULL) - { - buffer = (char *) xmalloc (bufsize); - bufptr = buffer; - } - else - { - discard_cleanups (old_chain); - buffer = (char *) xrealloc (buffer, bufsize); - bufptr = buffer + bufsize - nfetch; - } - old_chain = make_cleanup (free, buffer); - - /* Read as much as we can. */ - nfetch = target_read_memory_partial (addr, bufptr, nfetch, &errcode); - if (len != 0) - { - addr += nfetch; - bufptr += nfetch; - } - else - { - /* Scan this chunk for the null byte that terminates the string - to print. If found, we don't need to fetch any more. Note - that bufptr is explicitly left pointing at the next character - after the null byte, or at the next character after the end of - the buffer. */ - limit = bufptr + nfetch; - while (bufptr < limit) - { - ++addr; - ++bufptr; - if (bufptr[-1] == '\0') - { - /* We don't care about any error which happened after - the NULL terminator. */ - errcode = 0; - break; - } - } - } - } while (errcode == 0 /* no error */ - && bufsize < fetchlimit /* no overrun */ - && !(len == 0 && *(bufptr - 1) == '\0')); /* no null term */ - - /* bufptr and addr now point immediately beyond the last byte which we - consider part of the string (including a '\0' which ends the string). */ - - /* We now have either successfully filled the buffer to fetchlimit, or - terminated early due to an error or finding a null byte when LEN is - zero. */ - - if (len == 0 && bufptr > buffer && *(bufptr - 1) != '\0') - { - /* We didn't find a null terminator we were looking for. Attempt - to peek at the next character. If not successful, or it is not - a null byte, then force ellipsis to be printed. */ - if (target_read_memory (addr, &peekchar, 1) != 0 || peekchar != '\0') - { - force_ellipsis = 1; - } - } - else if ((len != 0 && errcode != 0) || (len > bufptr - buffer)) - { - /* Getting an error when we have a requested length, or fetching less - than the number of characters actually requested, always make us - print ellipsis. */ - force_ellipsis = 1; - } - - QUIT; - - /* If we get an error before fetching anything, don't print a string. - But if we fetch something and then get an error, print the string - and then the error message. */ - if (errcode == 0 || bufptr > buffer) - { - if (addressprint) - { - fputs_filtered (" ", stream); - } - LA_PRINT_STRING (stream, buffer, bufptr - buffer, force_ellipsis); - } - - if (errcode != 0) - { - if (errcode == EIO) - { - fprintf_filtered (stream, " <Address "); - print_address_numeric (addr, 1, stream); - fprintf_filtered (stream, " out of bounds>"); - } - else - { - fprintf_filtered (stream, " <Error reading address "); - print_address_numeric (addr, 1, stream); - fprintf_filtered (stream, ": %s>", safe_strerror (errcode)); - } - } - gdb_flush (stream); - do_cleanups (old_chain); - return (bufptr - buffer); -} - - -/* Validate an input or output radix setting, and make sure the user - knows what they really did here. Radix setting is confusing, e.g. - setting the input radix to "10" never changes it! */ - -/* ARGSUSED */ -static void -set_input_radix (args, from_tty, c) - char *args; - int from_tty; - struct cmd_list_element *c; -{ - set_input_radix_1 (from_tty, *(unsigned *)c->var); -} - -/* ARGSUSED */ -static void -set_input_radix_1 (from_tty, radix) - int from_tty; - unsigned radix; -{ - /* We don't currently disallow any input radix except 0 or 1, which don't - make any mathematical sense. In theory, we can deal with any input - radix greater than 1, even if we don't have unique digits for every - value from 0 to radix-1, but in practice we lose on large radix values. - We should either fix the lossage or restrict the radix range more. - (FIXME). */ - - if (radix < 2) - { - error ("Nonsense input radix ``decimal %u''; input radix unchanged.", - radix); - } - input_radix = radix; - if (from_tty) - { - printf_filtered ("Input radix now set to decimal %u, hex %x, octal %o.\n", - radix, radix, radix); - } -} - -/* ARGSUSED */ -static void -set_output_radix (args, from_tty, c) - char *args; - int from_tty; - struct cmd_list_element *c; -{ - set_output_radix_1 (from_tty, *(unsigned *)c->var); -} - -static void -set_output_radix_1 (from_tty, radix) - int from_tty; - unsigned radix; -{ - /* Validate the radix and disallow ones that we aren't prepared to - handle correctly, leaving the radix unchanged. */ - switch (radix) - { - case 16: - output_format = 'x'; /* hex */ - break; - case 10: - output_format = 0; /* decimal */ - break; - case 8: - output_format = 'o'; /* octal */ - break; - default: - error ("Unsupported output radix ``decimal %u''; output radix unchanged.", - radix); - } - output_radix = radix; - if (from_tty) - { - printf_filtered ("Output radix now set to decimal %u, hex %x, octal %o.\n", - radix, radix, radix); - } -} - -/* Set both the input and output radix at once. Try to set the output radix - first, since it has the most restrictive range. An radix that is valid as - an output radix is also valid as an input radix. - - It may be useful to have an unusual input radix. If the user wishes to - set an input radix that is not valid as an output radix, he needs to use - the 'set input-radix' command. */ - -static void -set_radix (arg, from_tty) - char *arg; - int from_tty; -{ - unsigned radix; - - radix = (arg == NULL) ? 10 : parse_and_eval_address (arg); - set_output_radix_1 (0, radix); - set_input_radix_1 (0, radix); - if (from_tty) - { - printf_filtered ("Input and output radices now set to decimal %u, hex %x, octal %o.\n", - radix, radix, radix); - } -} - -/* Show both the input and output radices. */ - -/*ARGSUSED*/ -static void -show_radix (arg, from_tty) - char *arg; - int from_tty; -{ - if (from_tty) - { - if (input_radix == output_radix) - { - printf_filtered ("Input and output radices set to decimal %u, hex %x, octal %o.\n", - input_radix, input_radix, input_radix); - } - else - { - printf_filtered ("Input radix set to decimal %u, hex %x, octal %o.\n", - input_radix, input_radix, input_radix); - printf_filtered ("Output radix set to decimal %u, hex %x, octal %o.\n", - output_radix, output_radix, output_radix); - } - } -} - - -/*ARGSUSED*/ -static void -set_print (arg, from_tty) - char *arg; - int from_tty; -{ - printf_unfiltered ( -"\"set print\" must be followed by the name of a print subcommand.\n"); - help_list (setprintlist, "set print ", -1, gdb_stdout); -} - -/*ARGSUSED*/ -static void -show_print (args, from_tty) - char *args; - int from_tty; -{ - cmd_show_list (showprintlist, from_tty, ""); -} - -void -_initialize_valprint () -{ - struct cmd_list_element *c; - - add_prefix_cmd ("print", no_class, set_print, - "Generic command for setting how things print.", - &setprintlist, "set print ", 0, &setlist); - add_alias_cmd ("p", "print", no_class, 1, &setlist); - /* prefer set print to set prompt */ - add_alias_cmd ("pr", "print", no_class, 1, &setlist); - - add_prefix_cmd ("print", no_class, show_print, - "Generic command for showing print settings.", - &showprintlist, "show print ", 0, &showlist); - add_alias_cmd ("p", "print", no_class, 1, &showlist); - add_alias_cmd ("pr", "print", no_class, 1, &showlist); - - add_show_from_set - (add_set_cmd ("elements", no_class, var_uinteger, (char *)&print_max, - "Set limit on string chars or array elements to print.\n\ -\"set print elements 0\" causes there to be no limit.", - &setprintlist), - &showprintlist); - - add_show_from_set - (add_set_cmd ("null-stop", no_class, var_boolean, - (char *)&stop_print_at_null, - "Set printing of char arrays to stop at first null char.", - &setprintlist), - &showprintlist); - - add_show_from_set - (add_set_cmd ("repeats", no_class, var_uinteger, - (char *)&repeat_count_threshold, - "Set threshold for repeated print elements.\n\ -\"set print repeats 0\" causes all elements to be individually printed.", - &setprintlist), - &showprintlist); - - add_show_from_set - (add_set_cmd ("pretty", class_support, var_boolean, - (char *)&prettyprint_structs, - "Set prettyprinting of structures.", - &setprintlist), - &showprintlist); - - add_show_from_set - (add_set_cmd ("union", class_support, var_boolean, (char *)&unionprint, - "Set printing of unions interior to structures.", - &setprintlist), - &showprintlist); - - add_show_from_set - (add_set_cmd ("array", class_support, var_boolean, - (char *)&prettyprint_arrays, - "Set prettyprinting of arrays.", - &setprintlist), - &showprintlist); - - add_show_from_set - (add_set_cmd ("address", class_support, var_boolean, (char *)&addressprint, - "Set printing of addresses.", - &setprintlist), - &showprintlist); - - c = add_set_cmd ("input-radix", class_support, var_uinteger, - (char *)&input_radix, - "Set default input radix for entering numbers.", - &setlist); - add_show_from_set (c, &showlist); - c->function.sfunc = set_input_radix; - - c = add_set_cmd ("output-radix", class_support, var_uinteger, - (char *)&output_radix, - "Set default output radix for printing of values.", - &setlist); - add_show_from_set (c, &showlist); - c->function.sfunc = set_output_radix; - - /* The "set radix" and "show radix" commands are special in that they are - like normal set and show commands but allow two normally independent - variables to be either set or shown with a single command. So the - usual add_set_cmd() and add_show_from_set() commands aren't really - appropriate. */ - add_cmd ("radix", class_support, set_radix, - "Set default input and output number radices.\n\ -Use 'set input-radix' or 'set output-radix' to independently set each.\n\ -Without an argument, sets both radices back to the default value of 10.", - &setlist); - add_cmd ("radix", class_support, show_radix, - "Show the default input and output number radices.\n\ -Use 'show input-radix' or 'show output-radix' to independently show each.", - &showlist); - - /* Give people the defaults which they are used to. */ - prettyprint_structs = 0; - prettyprint_arrays = 0; - unionprint = 1; - addressprint = 1; - print_max = PRINT_MAX_DEFAULT; -} |