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2002-05-13 Jeff Johnston <jjohnstn@redhat.com>

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* libc/machine/powerpc/vfprintf.c(__VFPRINTF_R)[__ALTIVEC__]: Restore
        the original format specifier when looping for vectors to compensate
        for any changes made in vector %g format processing.
        Also add syntax checking for various invalid scenarios
        involving vector format extensions.
        * libc/machine/powerpc/vfscanf.c(__VFSCANF_R)[__ALTIVEC__]: Fix
        return code setting for vector formats.  Also treat vector
        separator mismatch as a match error instead of an input error.
        Perform some syntax checking for vector formats.
This commit is contained in:
Jeff Johnston 2002-05-13 19:52:17 +00:00
parent bebd8a6c2e
commit 024739eb2b
3 changed files with 115 additions and 13 deletions
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12
newlib/ChangeLog
View File

@ -1,3 +1,15 @@
2002-05-13 Jeff Johnston <jjohnstn@redhat.com>
* libc/machine/powerpc/vfprintf.c(__VFPRINTF_R)[__ALTIVEC__]: Restore
the original format specifier when looping for vectors to compensate
for any changes made in vector %g format processing.
Also add syntax checking for various invalid scenarios
involving vector format extensions.
* libc/machine/powerpc/vfscanf.c(__VFSCANF_R)[__ALTIVEC__]: Fix
return code setting for vector formats. Also treat vector
separator mismatch as a match error instead of an input error.
Perform some syntax checking for vector formats.
2002-05-10 Mark Bradshaw <bradshaw@staff.crosswalk.com>
* libc/include/string.h (!__STRICT_ANSI__): Add strlcat and strlcpy.

104
newlib/libc/machine/powerpc/vfprintf.c
View File

@ -196,7 +196,7 @@ typedef union
int i[16 / sizeof(int)];
long l[4];
short s[8];
signed char c[16];
signed char c[16];
} vec_16_byte_union;
#endif /* __ALTIVEC__ */
@ -337,6 +337,8 @@ _DEFUN (_VFPRINTF_R, (data, fp, fmt0, ap),
int prec; /* precision from format (%.3d), or -1 */
char sign; /* sign prefix (' ', '+', '-', or \0) */
char old_sign; /* saved value of sign when looping for vectors */
int old_ch; /* saved value of ch when looping for vectors */
char *format_anchor; /* start of format to process */
wchar_t wc;
#ifdef FLOATING_POINT
char *decimal_point = localeconv()->decimal_point;
@ -535,7 +537,9 @@ _DEFUN (_VFPRINTF_R, (data, fp, fmt0, ap),
vec_sep = ' ';
#endif /* __ALTIVEC__ */
format_anchor = fmt;
rflag: ch = *fmt++;
old_ch = ch;
reswitch: switch (ch) {
case ' ':
/*
@ -571,6 +575,11 @@ reswitch: switch (ch) {
case ';':
case ':':
case '_':
if (vec_sep != ' ')
{
fmt = format_anchor;
continue;
}
vec_sep = ch;
goto rflag;
#endif /* __ALTIVEC__ */
@ -611,6 +620,11 @@ reswitch: switch (ch) {
goto rflag;
#endif
case 'h':
if (flags & LONGINT)
{
fmt = format_anchor;
continue;
}
flags |= SHORTINT;
#ifdef __ALTIVEC__
if (flags & VECTOR)
@ -618,6 +632,11 @@ reswitch: switch (ch) {
#endif
goto rflag;
case 'l':
if (flags & SHORTINT)
{
fmt = format_anchor;
continue;
}
if (*fmt == 'l') {
fmt++;
flags |= QUADINT;
@ -632,13 +651,24 @@ reswitch: switch (ch) {
goto rflag;
#ifdef __ALTIVEC__
case 'v':
if (flags & VECTOR)
{
fmt = format_anchor;
continue;
}
flags |= VECTOR;
vec_print_count = (flags & SHORTINT) ? 8 :
((flags & LONGINT) ? 4 : 16);
goto rflag;
#endif
case 'q':
flags &= ~VECTOR;
#ifdef __ALTIVEC__
if (flags & VECTOR)
{
fmt = format_anchor;
continue;
}
#endif /* __ALTIVEC__ */
flags |= QUADINT;
goto rflag;
case 'c':
@ -646,6 +676,11 @@ reswitch: switch (ch) {
if (flags & VECTOR)
{
int k;
if (flags & (SHORTINT | LONGINT))
{
fmt = format_anchor;
continue;
}
vec_16_byte_union tmp;
tmp.v = va_arg(ap, vector int);
cp = buf;
@ -673,6 +708,13 @@ reswitch: switch (ch) {
/*FALLTHROUGH*/
case 'd':
case 'i':
#ifdef __ALTIVEC__
if (!(flags & VECTOR) && vec_sep != ' ')
{
fmt = format_anchor;
continue;
}
#endif /* __ALTIVEC__ */
_uquad = SARG();
#ifndef _NO_LONGLONG
if ((quad_t)_uquad < 0)
@ -705,11 +747,15 @@ reswitch: switch (ch) {
#ifdef __ALTIVEC__
} else if (flags & VECTOR) {
if (vec_print_count >= 4)
{
vec_print_count = 4;
{
vec_print_count = 4;
vec_tmp.v = va_arg(ap, vector int);
}
}
_fpvalue = (double)vec_tmp.f[4 - vec_print_count];
} else if (vec_sep != ' ') {
fmt = format_anchor;
continue;
#endif /* __ALTIVEC__ */
} else {
_fpvalue = va_arg(ap, double);
@ -740,10 +786,10 @@ reswitch: switch (ch) {
#ifdef __ALTIVEC__
} else if (flags & VECTOR) {
if (vec_print_count >= 4)
{
vec_print_count = 4;
{
vec_print_count = 4;
vec_tmp.v = va_arg(ap, vector int);
}
}
_fpvalue = (_LONG_DOUBLE)k.f[4 - vec_print_count];
#endif /* __ALTIVEC__ */
} else {
@ -776,7 +822,10 @@ reswitch: switch (ch) {
if (ch == 'g' || ch == 'G') {
if (expt <= -4 || expt > prec)
ch = (ch == 'g') ? 'e' : 'E';
{
old_ch = ch;
ch = (ch == 'g') ? 'e' : 'E';
}
else
ch = 'g';
}
@ -826,6 +875,13 @@ reswitch: switch (ch) {
flags |= LONGINT;
/*FALLTHROUGH*/
case 'o':
#ifdef __ALTIVEC__
if (!(flags & VECTOR) && vec_sep != ' ')
{
fmt = format_anchor;
continue;
}
#endif /* __ALTIVEC__ */
_uquad = UARG();
base = OCT;
goto nosign;
@ -841,7 +897,12 @@ reswitch: switch (ch) {
#ifdef __ALTIVEC__
if (flags & VECTOR)
_uquad = UARG();
else
else if (vec_sep != ' ')
{
fmt = format_anchor;
continue;
}
else
#endif /* __ALTIVEC__ */
_uquad = (u_long)(unsigned _POINTER_INT)va_arg(ap, void *);
base = HEX;
@ -850,7 +911,13 @@ reswitch: switch (ch) {
ch = 'x';
goto nosign;
case 's':
flags &= ~VECTOR;
#ifdef __ALTIVEC__
if (flags & VECTOR)
{
fmt = format_anchor;
continue;
}
#endif /* __ALTIVEC__ */
if ((cp = va_arg(ap, char *)) == NULL)
cp = "(null)";
if (prec >= 0) {
@ -875,6 +942,13 @@ reswitch: switch (ch) {
flags |= LONGINT;
/*FALLTHROUGH*/
case 'u':
#ifdef __ALTIVEC__
if (!(flags & VECTOR) && vec_sep != ' ')
{
fmt = format_anchor;
continue;
}
#endif /* __ALTIVEC__ */
_uquad = UARG();
base = DEC;
goto nosign;
@ -883,6 +957,13 @@ reswitch: switch (ch) {
goto hex;
case 'x':
xdigs = "0123456789abcdef";
#ifdef __ALTIVEC__
if (!(flags & VECTOR) && vec_sep != ' ')
{
fmt = format_anchor;
continue;
}
#endif /* __ALTIVEC__ */
hex: _uquad = UARG();
base = HEX;
/* leading 0x/X only if non-zero */
@ -1078,6 +1159,7 @@ number: if ((dprec = prec) >= 0)
}
FLUSH();
sign = old_sign;
ch = old_ch;
goto reswitch;
}
#endif /* __ALTIVEC__ */

12
newlib/libc/machine/powerpc/vfscanf.c
View File

@ -363,6 +363,8 @@ __svfscanf_r (rptr, fp, fmt0, ap)
vec_sep = c;
goto again;
case 'l':
if (flags & SHORT)
continue; /* invalid format, don't process any further */
if (flags & LONG)
{
flags &= ~LONG;
@ -382,6 +384,8 @@ __svfscanf_r (rptr, fp, fmt0, ap)
goto again;
case 'h':
flags |= SHORT;
if (flags & LONG)
continue; /* invalid format, don't process any further */
if (flags & VECTOR)
vec_read_count = 8;
goto again;
@ -482,6 +486,9 @@ __svfscanf_r (rptr, fp, fmt0, ap)
type = CT_CHAR;
if (flags & VECTOR)
{
/* not allowed to have h or l with c specifier */
if (flags & (LONG | SHORT))
continue; /* invalid format don't process any further */
width = 0;
vec_read_count = 16;
}
@ -580,7 +587,7 @@ __svfscanf_r (rptr, fp, fmt0, ap)
{
if (vec_sep == ' ' && last_space_char != ' ' ||
vec_sep != ' ' && *fp->_p != vec_sep)
goto input_failure;
goto match_failure;
if (vec_sep != ' ')
{
nread++;
@ -958,7 +965,7 @@ __svfscanf_r (rptr, fp, fmt0, ap)
ip = va_arg (ap, int *);
*ip++ = res;
}
else
else
{
if (!looped)
ch_dest = vec_buf.c;
@ -1172,6 +1179,7 @@ __svfscanf_r (rptr, fp, fmt0, ap)
unsigned long *vp = va_arg (ap, unsigned long *);
for (i = 0; i < 4; ++i)
*vp++ = vec_buf.l[i];
nassigned++;
}
}
input_failure: