X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/f74c75964edafe4a1463ed848c56509e4c505b6c..224c70764cab4e0e39a26aaf3ad3016552f62f55:/gdtoa/FreeBSD/_ldtoa.c.patch

diff --git a/gdtoa/FreeBSD/_ldtoa.c.patch b/gdtoa/FreeBSD/_ldtoa.c.patch
index c4a62ed..8f95773 100644
--- a/gdtoa/FreeBSD/_ldtoa.c.patch
+++ b/gdtoa/FreeBSD/_ldtoa.c.patch
@@ -1,9 +1,22 @@
---- _ldtoa.c.orig	2004-12-08 22:50:28.000000000 -0800
-+++ _ldtoa.c	2004-12-08 22:52:58.000000000 -0800
-@@ -61,14 +61,34 @@
+--- _ldtoa.c.orig	2004-06-03 15:17:18.000000000 -0700
++++ _ldtoa.c	2005-10-09 00:09:11.000000000 -0700
+@@ -46,7 +46,7 @@
+ __ldtoa(long double *ld, int mode, int ndigits, int *decpt, int *sign,
+     char **rve)
+ {
+-	static FPI fpi = {
++	static FPI fpi0 = {
+ 		LDBL_MANT_DIG,			/* nbits */
+ 		LDBL_MIN_EXP - LDBL_MANT_DIG,	/* emin */
+ 		LDBL_MAX_EXP - LDBL_MANT_DIG,	/* emax */
+@@ -61,28 +61,55 @@
  	char *ret;
  	union IEEEl2bits u;
  	uint32_t bits[(LDBL_MANT_DIG + 31) / 32];
++	FPI *fpi = &fpi0, fpi1;
++#ifdef Honor_FLT_ROUNDS
++	int rounding = Flt_Rounds;
++#endif
 +#if defined(__ppc__) || defined(__ppc64__)
 +	int type;
 +#endif /* defined(__ppc__) || defined(__ppc64__) */
@@ -33,25 +46,40 @@
  	case FP_NORMAL:
 +	case FP_SUPERNORMAL:
  		kind = STRTOG_Normal;
++/* For ppc/ppc64 and head-tail long double, the implicit bit is already there */
++#if !defined(__ppc__) && !defined(__ppc64__)
  #ifdef	LDBL_IMPLICIT_NBIT
  		bits[LDBL_MANT_DIG / 32] |= 1 << ((LDBL_MANT_DIG - 1) % 32);
-@@ -77,12 +97,14 @@
+ #endif /* LDBL_IMPLICIT_NBIT */
++#endif /* !defined(__ppc__) && !defined(__ppc64__) */
+ 		break;
  	case FP_ZERO:
  		kind = STRTOG_Zero;
  		break;
 +#if !defined(__ppc__) && !defined(__ppc64__)
  	case FP_SUBNORMAL:
  		kind = STRTOG_Denormal;
- #ifdef	LDBL_IMPLICIT_NBIT
+-#ifdef	LDBL_IMPLICIT_NBIT
  		be++;
- #endif
+-#endif
  		break;
 +#endif /* !defined(__ppc__) && !defined(__ppc64__) */
  	case FP_INFINITE:
  		kind = STRTOG_Infinite;
  		break;
-@@ -96,5 +118,9 @@
- 	ret = gdtoa(&fpi, be, (ULong *)bits, &kind, mode, ndigits, decpt, rve);
+@@ -93,8 +120,19 @@
+ 		abort();
+ 	}
+ 
+-	ret = gdtoa(&fpi, be, (ULong *)bits, &kind, mode, ndigits, decpt, rve);
++#ifdef Honor_FLT_ROUNDS
++	if (rounding != fpi0.rounding) {
++		fpi1 = fpi0; /* for thread safety */
++		fpi1.rounding = rounding;
++		fpi = &fpi1;
++		}
++#endif /* Honor_FLT_ROUNDS */
++	ret = gdtoa(fpi, be, (ULong *)bits, &kind, mode, ndigits, decpt, rve);
  	if (*decpt == -32768)
  		*decpt = INT_MAX;
 +#if defined(__ppc__) || defined(__ppc64__)