/* Print values for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991-1994, 1998, 2000
+ Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
This file is part of GDB.
#include "target.h"
#include "obstack.h"
#include "language.h"
-#include "demangle.h"
#include "annotate.h"
#include "valprint.h"
+#include "floatformat.h"
+#include "doublest.h"
#include <errno.h>
sign, temp[2], temp[1], temp[0]);
break;
default:
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
return;
}
fprintf_filtered (stream, local_hex_format_custom ("016ll"), val_long);
break;
default:
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
#else /* !CC_HAS_LONG_LONG || !PRINTF_HAS_LONG_LONG */
/* In the following it is important to coerce (val_long) to a long. It does
(unsigned long) val_long);
break;
default:
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
#endif /* CC_HAS_LONG_LONG || PRINTF_HAS_LONG_LONG */
}
#if 0
void
-strcat_longest (format, use_local, val_long, buf, buflen)
- int format;
- int use_local;
- LONGEST val_long;
- char *buf;
- int buflen; /* ignored, for now */
+strcat_longest (int format, int use_local, LONGEST val_long, char *buf,
+ int buflen)
{
+/* FIXME: Use buflen to avoid buffer overflow. */
#if defined (CC_HAS_LONG_LONG) && !defined (PRINTF_HAS_LONG_LONG)
long vtop, vbot;
sprintf (buf, local_hex_format_custom ("016ll"), val_long);
break;
default:
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
#else /* !PRINTF_HAS_LONG_LONG */
/* In the following it is important to coerce (val_long) to a long. It does
((long) val_long));
break;
default:
- abort ();
+ internal_error (__FILE__, __LINE__, "failed internal consistency check");
}
#endif /* !PRINTF_HAS_LONG_LONG */
return (rtnval);
}
-
-/* Print a floating point value of type TYPE, pointed to in GDB by VALADDR,
- on STREAM. */
+/* Print a floating point value of type TYPE, pointed to in GDB by
+ VALADDR, on STREAM. */
void
print_floating (char *valaddr, struct type *type, struct ui_file *stream)
{
DOUBLEST doub;
int inv;
+ const struct floatformat *fmt = &floatformat_unknown;
unsigned len = TYPE_LENGTH (type);
- /* 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 non-zero for systems like the 68881, which uses IEEE
- representation, but is not IEEE conforming. */
- if (IEEE_FLOAT)
- {
- 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;
-
- /* For lint, initialize these two variables to suppress warning: */
- low = high = nonnegative = 0;
- 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. */
+ /* FIXME: kettenis/2001-01-20: The check for IEEE_FLOAT is probably
+ still necessary since GDB by default assumes that the target uses
+ the IEEE 754 representation for its floats and doubles. Of
+ course this is all crock and should be cleaned up. */
- /* 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
- {
-#ifdef TARGET_ANALYZE_FLOATING
- TARGET_ANALYZE_FLOATING;
-#else
- /* Extended. We can't detect extended NaNs for this target.
- Also note that currently extendeds get nuked to double in
- REGISTER_CONVERTIBLE. */
- is_nan = 0;
-#endif
- }
+ if (len == TARGET_FLOAT_BIT / TARGET_CHAR_BIT && IEEE_FLOAT)
+ fmt = TARGET_FLOAT_FORMAT;
+ else if (len == TARGET_DOUBLE_BIT / TARGET_CHAR_BIT && IEEE_FLOAT)
+ fmt = TARGET_DOUBLE_FORMAT;
+ else if (len == TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT)
+ fmt = TARGET_LONG_DOUBLE_FORMAT;
- 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;
- }
+ if (floatformat_is_nan (fmt, valaddr))
+ {
+ if (floatformat_is_negative (fmt, valaddr))
+ fprintf_filtered (stream, "-");
+ fprintf_filtered (stream, "nan(");
+ fprintf_filtered (stream, local_hex_format_prefix ());
+ fprintf_filtered (stream, floatformat_mantissa (fmt, valaddr));
+ fprintf_filtered (stream, local_hex_format_suffix ());
+ fprintf_filtered (stream, ")");
+ return;
}
doub = unpack_double (type, valaddr, &inv);
return;
}
+ /* FIXME: kettenis/2001-01-20: The following code makes too much
+ assumptions about the host and target floating point format. */
+
if (len < sizeof (double))
fprintf_filtered (stream, "%.9g", (double) doub);
else if (len == sizeof (double))
#ifdef PRINTF_HAS_LONG_DOUBLE
fprintf_filtered (stream, "%.35Lg", doub);
#else
- /* This at least wins with values that are representable as doubles */
+ /* This at least wins with values that are representable as
+ doubles. */
fprintf_filtered (stream, "%.17g", (double) doub);
#endif
}
* as the base 16 number, which is 2 digits per byte.
*/
decimal_len = len * 2 * 2;
- digits = (unsigned char *) malloc (decimal_len);
- if (digits == NULL)
- error ("Can't allocate memory for conversion to decimal.");
+ digits = xmalloc (decimal_len);
for (i = 0; i < decimal_len; i++)
{
{
fprintf_filtered (stream, "%1d", digits[i]);
}
- free (digits);
+ xfree (digits);
fprintf_filtered (stream, local_decimal_format_suffix ());
}
{
buffer = (char *) xmalloc (len * width);
bufptr = buffer;
- old_chain = make_cleanup (free, buffer);
+ old_chain = make_cleanup (xfree, buffer);
nfetch = partial_memory_read (addr, bufptr, len * width, &errcode)
/ width;
buffer = (char *) xrealloc (buffer, (nfetch + bufsize) * width);
}
- old_chain = make_cleanup (free, buffer);
+ old_chain = make_cleanup (xfree, buffer);
bufptr = buffer + bufsize * width;
bufsize += nfetch;
projects / deliverable / binutils-gdb.git / blobdiff