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Make fixes and improvements

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- Fix handling of precision in hex float formatting
- Enhance the cocmd interpreter for system() and popen()
- Manually ran the Lua unit tests, which are now passing
- Let stdio i/o operations happen when file is in error state
- We're now saving and restoring xmm in ftrace out of paranoia
This commit is contained in:
Justine Tunney 2023-07-09 05:11:25 -07:00
parent 95fbdb4f76
commit 41396ff48a
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GPG key ID: BE714B4575D6E328
43 changed files with 495 additions and 261 deletions
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62
libc/stdio/fmt.c
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@ -727,7 +727,6 @@ haveinc:
* - `%e` double (expo formatting)
* - `%f` double (ugly formatting)
* - `%a` double (hex formatting)
* - `%Lg` long double
*
* Size Modifiers
*
@ -738,6 +737,7 @@ haveinc:
* - `%lx` unsigned long (64-bit hexadecimal)
* - `%jd` intmax_t (64-bit)
* - `%jjd` int128_t (128-bit)
* - `%Lg` long double
*
* Width Modifiers
*
@ -1251,19 +1251,23 @@ _Hide int __fmt(void *fn, void *arg, const char *format, va_list va) {
__FMT_PUT(*s++);
if (prec || (flags & FLAGS_HASH)) __FMT_PUT('.');
while (--prec >= 0) {
if ((c = *s))
if ((c = *s)) {
s++;
else
} else {
c = '0';
}
__FMT_PUT(c);
}
__FMT_PUT(d);
if (decpt < 0) {
__FMT_PUT('-');
decpt = -decpt;
} else
} else {
__FMT_PUT('+');
for (c = 2, k = 10; 10 * k <= decpt; c++, k *= 10) donothing;
}
for (c = 2, k = 10; 10 * k <= decpt; c++, k *= 10) {
donothing;
}
for (;;) {
i1 = decpt / k;
__FMT_PUT(i1 + '0');
@ -1271,7 +1275,9 @@ _Hide int __fmt(void *fn, void *arg, const char *format, va_list va) {
decpt -= i1 * k;
decpt *= 10;
}
while (--width >= 0) __FMT_PUT(' ');
while (--width >= 0) {
__FMT_PUT(' ');
}
freedtoa(s0);
break;
@ -1321,7 +1327,7 @@ _Hide int __fmt(void *fn, void *arg, const char *format, va_list va) {
}
if (sign) __FMT_PUT(sign);
__FMT_PUT('0');
__FMT_PUT(alphabet[17]);
__FMT_PUT(alphabet[17]); // x or X
if ((flags & FLAGS_ZEROPAD) && width > 0 && !(flags & FLAGS_LEFT)) {
do __FMT_PUT('0');
while (--width > 0);
@ -1329,29 +1335,31 @@ _Hide int __fmt(void *fn, void *arg, const char *format, va_list va) {
i1 = prec1 & 7;
k = prec1 >> 3;
__FMT_PUT(alphabet[(fpb.bits[k] >> 4 * i1) & 0xf]);
if (prec1 > 0 || (flags & FLAGS_HASH)) __FMT_PUT('.');
if (prec1 > 0) {
prec -= prec1;
while (prec1 > 0) {
if (--i1 < 0) {
if (--k < 0) break;
i1 = 7;
}
__FMT_PUT(alphabet[(fpb.bits[k] >> 4 * i1) & 0xf]);
--prec1;
}
if ((flags & FLAGS_HASH) && prec > 0) {
do __FMT_PUT(0);
while (--prec > 0);
}
if (prec1 > 0 || prec > 0) {
__FMT_PUT('.');
}
__FMT_PUT(alphabet[16]);
while (prec1 > 0) {
if (--i1 < 0) {
if (--k < 0) break;
i1 = 7;
}
__FMT_PUT(alphabet[(fpb.bits[k] >> 4 * i1) & 0xf]);
--prec1;
--prec;
}
while (prec-- > 0) {
__FMT_PUT('0');
}
__FMT_PUT(alphabet[16]); // p or P
if (bex < 0) {
__FMT_PUT('-');
bex = -bex;
} else
} else {
__FMT_PUT('+');
for (c = 1; 10 * c <= bex; c *= 10) donothing;
}
for (c = 1; 10 * c <= bex; c *= 10) {
donothing;
}
for (;;) {
i1 = bex / c;
__FMT_PUT('0' + i1);
@ -1359,7 +1367,9 @@ _Hide int __fmt(void *fn, void *arg, const char *format, va_list va) {
bex -= i1 * c;
bex *= 10;
}
while (--width >= 0) __FMT_PUT(' ');
while (--width >= 0) {
__FMT_PUT(' ');
}
break;
case '%':