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Eliminate LOC_EXTERNAL. Improve select_source_symtab. Bug fixes.

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This commit is contained in:
John Gilmore
1991-07-19 06:45:19 +00:00
parent 3d6c650189
commit c3a2180180
4 changed files with 21 additions and 28 deletions
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16
gdb/values.c
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@ -1352,7 +1352,8 @@ unpack_field_as_long (type, valaddr, fieldno)
val = val >> (bitpos % 8);
#endif
val &= (1 << bitsize) - 1;
if (bitsize < 8 * sizeof (val))
val &= (((unsigned long)1) << bitsize) - 1;
return val;
}
@ -1369,9 +1370,10 @@ modify_field (addr, fieldval, bitpos, bitsize)
{
long oword;
/* Reject values too big to fit in the field in question.
Otherwise adjoining fields may be corrupted. */
if (fieldval & ~((1<<bitsize)-1))
/* Reject values too big to fit in the field in question,
otherwise adjoining fields may be corrupted. */
if ((0 != fieldval & ~((1<<bitsize)-1))
&& bitsize < 8 * sizeof (fieldval))
error ("Value %d does not fit in %d bits.", fieldval, bitsize);
bcopy (addr, &oword, sizeof oword);
@ -1382,7 +1384,11 @@ modify_field (addr, fieldval, bitpos, bitsize)
bitpos = sizeof (oword) * 8 - bitpos - bitsize;
#endif
oword &= ~(((1 << bitsize) - 1) << bitpos);
/* Mask out old value, while avoiding shifts >= longword size */
if (bitsize < 8 * sizeof (oword))
oword &= ~(((((unsigned long)1) << bitsize) - 1) << bitpos);
else
oword &= ~((-1) << bitpos);
oword |= fieldval << bitpos;
SWAP_TARGET_AND_HOST (&oword, sizeof oword); /* To target format */