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Make improvements to locking

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This change makes pthread_mutex_lock() as fast as _spinlock() by
default. Thread instability issues on NetBSD have been resolved.
Improvements made to gdtoa thread code. Crash reporting will now
synchronize between threads in a slightly better way.
This commit is contained in:
Justine Tunney 2022-06-19 01:13:03 -07:00
parent 25041b8026
commit d5312b60f7
60 changed files with 890 additions and 629 deletions
Download patch file Download diff file Expand all files Collapse all files

16
third_party/gdtoa/gethex.c vendored
View file

@ -35,7 +35,7 @@
int
__gdtoa_gethex(const char **sp, const FPI *fpi,
Long *exp, Bigint **bp, int sign)
Long *exp, Bigint **bp, int sign, ThInfo **PTI)
{
Bigint *b;
const unsigned char *decpt, *s0, *s, *s1;
@ -124,7 +124,7 @@ pcheck:
}
goto retz;
ret_tiny:
b = __gdtoa_Balloc(0);
b = __gdtoa_Balloc(0, PTI);
b->wds = 1;
b->x[0] = 1;
goto dret;
@ -146,7 +146,7 @@ pcheck:
if (nbits & kmask)
++n;
for(j = n, k = 0; j >>= 1; ++k);
*bp = b = __gdtoa_Balloc(k);
*bp = b = __gdtoa_Balloc(k, PTI);
b->wds = n;
for(j = 0; j < n0; ++j)
b->x[j] = ALL_ON;
@ -158,7 +158,7 @@ pcheck:
n = s1 - s0 - 1;
for(k = 0; n > (1 << (kshift-2)) - 1; n >>= 1)
k++;
b = __gdtoa_Balloc(k);
b = __gdtoa_Balloc(k, PTI);
x = b->x;
n = 0;
L = 0;
@ -195,13 +195,13 @@ pcheck:
}
else if (n < nbits) {
n = nbits - n;
b = __gdtoa_lshift(b, n);
b = __gdtoa_lshift(b, n, PTI);
e -= n;
x = b->x;
}
if (e > fpi->emax) {
ovfl:
__gdtoa_Bfree(b);
__gdtoa_Bfree(b, PTI);
ovfl1:
errno = ERANGE;
switch (fpi->rounding) {
@ -243,7 +243,7 @@ pcheck:
| STRTOG_Underflow;
}
}
__gdtoa_Bfree(b);
__gdtoa_Bfree(b, PTI);
retz:
errno = ERANGE;
return STRTOG_Zero | STRTOG_Inexlo | STRTOG_Underflow;
@ -277,7 +277,7 @@ pcheck:
}
if (up) {
k = b->wds;
b = __gdtoa_increment(b);
b = __gdtoa_increment(b, PTI);
x = b->x;
if (irv == STRTOG_Denormal) {
if (nbits == fpi->nbits - 1