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authorJakub Jelinek <jakub@redhat.com>2007-07-31 13:33:18 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-31 13:33:18 +0000
commit32c075e1f01849e161724bbd400ba77244e482cc (patch)
tree5f083a3f352104f32bb6c902d57fa3f294bd8d4d /sysdeps/i386
parentd6220e9ee38c1c9285221b023346201ec5f511b3 (diff)
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Diffstat (limited to 'sysdeps/i386')
-rw-r--r--sysdeps/i386/bits/byteswap.h6
-rw-r--r--sysdeps/i386/dl-machine.h12
-rw-r--r--sysdeps/i386/fpu/e_log.S11
-rw-r--r--sysdeps/i386/fpu/e_logf.S11
-rw-r--r--sysdeps/i386/fpu/e_logl.S11
-rw-r--r--sysdeps/i386/fpu/e_pow.S18
-rw-r--r--sysdeps/i386/fpu/e_powf.S18
-rw-r--r--sysdeps/i386/fpu/e_powl.S18
-rw-r--r--sysdeps/i386/fpu/math_private.h18
-rw-r--r--sysdeps/i386/fpu/s_nextafterl.c18
-rw-r--r--sysdeps/i386/fpu/s_nexttoward.c25
-rw-r--r--sysdeps/i386/fpu/s_nexttowardf.c25
-rw-r--r--sysdeps/i386/i486/bits/atomic.h370
-rw-r--r--sysdeps/i386/i686/memcmp.S70
-rw-r--r--sysdeps/i386/ldbl2mpn.c13
-rw-r--r--sysdeps/i386/soft-fp/sfp-machine.h89
-rw-r--r--sysdeps/i386/sysdep.h14
17 files changed, 372 insertions, 375 deletions
diff --git a/sysdeps/i386/bits/byteswap.h b/sysdeps/i386/bits/byteswap.h
index bed27559c5..7f2ddc2dc5 100644
--- a/sysdeps/i386/bits/byteswap.h
+++ b/sysdeps/i386/bits/byteswap.h
@@ -1,5 +1,6 @@
/* Macros to swap the order of bytes in integer values.
- Copyright (C) 1997,1998,2000,2002,2003,2006 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 2000, 2002, 2003, 2006, 2007
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -66,7 +67,8 @@ __bswap_16 (unsigned short int __bsx)
`bswap' opcode. On i386 we have to use three instructions. */
# if !defined __i486__ && !defined __pentium__ && !defined __pentiumpro__ \
&& !defined __pentium4__ && !defined __k8__ && !defined __athlon__ \
- && !defined __k6__
+ && !defined __k6__ && !defined __nocona__ && !defined __core2__ \
+ && !defined __geode__ && !defined __amdfam10__
# define __bswap_32(x) \
(__extension__ \
({ register unsigned int __v, __x = (x); \
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 04296d2a9a..df3edf5460 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -1,5 +1,5 @@
/* Machine-dependent ELF dynamic relocation inline functions. i386 version.
- Copyright (C) 1995-2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1995-2002, 2003, 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -34,7 +34,9 @@ elf_machine_matches_host (const Elf32_Ehdr *ehdr)
}
-#ifdef PI_STATIC_AND_HIDDEN
+#if defined PI_STATIC_AND_HIDDEN \
+ && defined HAVE_VISIBILITY_ATTRIBUTE && defined HAVE_HIDDEN \
+ && !defined HAVE_BROKEN_VISIBILITY_ATTRIBUTE
/* Return the link-time address of _DYNAMIC. Conveniently, this is the
first element of the GOT, a special entry that is never relocated. */
@@ -242,7 +244,7 @@ _dl_start_user:\n\
define the value.
ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
of the main executable's symbols, as for a COPY reloc. */
-#if !defined RTLD_BOOTSTRAP || USE___THREAD
+#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD)
# define elf_machine_type_class(type) \
((((type) == R_386_JMP_SLOT || (type) == R_386_TLS_DTPMOD32 \
|| (type) == R_386_TLS_DTPOFF32 || (type) == R_386_TLS_TPOFF32 \
@@ -350,7 +352,7 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
*reloc_addr = value;
break;
-#if !defined RTLD_BOOTSTRAP || USE___THREAD
+#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD)
case R_386_TLS_DTPMOD32:
# ifdef RTLD_BOOTSTRAP
/* During startup the dynamic linker is always the module
@@ -474,6 +476,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
*reloc_addr = (value + reloc->r_addend - (Elf32_Addr) reloc_addr);
break;
+# ifdef USE_TLS
case R_386_TLS_DTPMOD32:
/* Get the information from the link map returned by the
resolv function. */
@@ -510,6 +513,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
+ reloc->r_addend;
}
break;
+# endif /* use TLS */
case R_386_COPY:
if (sym == NULL)
/* This can happen in trace mode if an object could not be
diff --git a/sysdeps/i386/fpu/e_log.S b/sysdeps/i386/fpu/e_log.S
index 5604e638f5..ce55b72292 100644
--- a/sysdeps/i386/fpu/e_log.S
+++ b/sysdeps/i386/fpu/e_log.S
@@ -36,11 +36,15 @@ limit: .double 0.29
ENTRY(__ieee754_log)
fldln2 // log(2)
fldl 4(%esp) // x : log(2)
+ fxam
+ fnstsw
#ifdef PIC
LOAD_PIC_REG (dx)
#endif
fld %st // x : x : log(2)
- fsubl MO(one) // x-1 : x : log(2)
+ sahf
+ jc 3f // in case x is NaN or +-Inf
+4: fsubl MO(one) // x-1 : x : log(2)
fld %st // x-1 : x-1 : x : log(2)
fabs // |x-1| : x-1 : x : log(2)
fcompl MO(limit) // x-1 : x : log(2)
@@ -54,4 +58,9 @@ ENTRY(__ieee754_log)
2: fstp %st(0) // x : log(2)
fyl2x // log(x)
ret
+
+3: jp 4b // in case x is +-Inf
+ fstp %st(1)
+ fstp %st(1)
+ ret
END (__ieee754_log)
diff --git a/sysdeps/i386/fpu/e_logf.S b/sysdeps/i386/fpu/e_logf.S
index 128bb2754c..cd4538b594 100644
--- a/sysdeps/i386/fpu/e_logf.S
+++ b/sysdeps/i386/fpu/e_logf.S
@@ -37,11 +37,15 @@ limit: .double 0.29
ENTRY(__ieee754_logf)
fldln2 // log(2)
flds 4(%esp) // x : log(2)
+ fxam
+ fnstsw
#ifdef PIC
LOAD_PIC_REG (dx)
#endif
fld %st // x : x : log(2)
- fsubl MO(one) // x-1 : x : log(2)
+ sahf
+ jc 3f // in case x is NaN or +-Inf
+4: fsubl MO(one) // x-1 : x : log(2)
fld %st // x-1 : x-1 : x : log(2)
fabs // |x-1| : x-1 : x : log(2)
fcompl MO(limit) // x-1 : x : log(2)
@@ -55,4 +59,9 @@ ENTRY(__ieee754_logf)
2: fstp %st(0) // x : log(2)
fyl2x // log(x)
ret
+
+3: jp 4b // in case x is +-Inf
+ fstp %st(1)
+ fstp %st(1)
+ ret
END (__ieee754_logf)
diff --git a/sysdeps/i386/fpu/e_logl.S b/sysdeps/i386/fpu/e_logl.S
index 5023d3012f..551dcf1e46 100644
--- a/sysdeps/i386/fpu/e_logl.S
+++ b/sysdeps/i386/fpu/e_logl.S
@@ -37,11 +37,15 @@ limit: .double 0.29
ENTRY(__ieee754_logl)
fldln2 // log(2)
fldt 4(%esp) // x : log(2)
+ fxam
+ fnstsw
#ifdef PIC
LOAD_PIC_REG (dx)
#endif
fld %st // x : x : log(2)
- fsubl MO(one) // x-1 : x : log(2)
+ sahf
+ jc 3f // in case x is NaN or +-Inf
+4: fsubl MO(one) // x-1 : x : log(2)
fld %st // x-1 : x-1 : x : log(2)
fabs // |x-1| : x-1 : x : log(2)
fcompl MO(limit) // x-1 : x : log(2)
@@ -55,4 +59,9 @@ ENTRY(__ieee754_logl)
2: fstp %st(0) // x : log(2)
fyl2x // log(x)
ret
+
+3: jp 4b // in case x is +-Inf
+ fstp %st(1)
+ fstp %st(1)
+ ret
END (__ieee754_logl)
diff --git a/sysdeps/i386/fpu/e_pow.S b/sysdeps/i386/fpu/e_pow.S
index c554ca4ecb..792f926902 100644
--- a/sysdeps/i386/fpu/e_pow.S
+++ b/sysdeps/i386/fpu/e_pow.S
@@ -1,5 +1,5 @@
/* ix87 specific implementation of pow function.
- Copyright (C) 1996, 1997, 1998, 1999, 2001, 2004, 2005
+ Copyright (C) 1996, 1997, 1998, 1999, 2001, 2004, 2005, 2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -161,10 +161,11 @@ ENTRY(__ieee754_pow)
2: /* y is a real number. */
fxch // x : y
fldl MO(one) // 1.0 : x : y
- fld %st(1) // x : 1.0 : x : y
- fsub %st(1) // x-1 : 1.0 : x : y
- fabs // |x-1| : 1.0 : x : y
- fcompl MO(limit) // 1.0 : x : y
+ fldl MO(limit) // 0.29 : 1.0 : x : y
+ fld %st(2) // x : 0.29 : 1.0 : x : y
+ fsub %st(2) // x-1 : 0.29 : 1.0 : x : y
+ fabs // |x-1| : 0.29 : 1.0 : x : y
+ fucompp // 1.0 : x : y
fnstsw
fxch // x : 1.0 : y
sahf
@@ -197,9 +198,10 @@ ENTRY(__ieee754_pow)
// y == ħinf
.align ALIGNARG(4)
12: fstp %st(0) // pop y
- fldl 4(%esp) // x
- fabs
- fcompl MO(one) // < 1, == 1, or > 1
+ fldl MO(one) // 1
+ fldl 4(%esp) // x : 1
+ fabs // abs(x) : 1
+ fucompp // < 1, == 1, or > 1
fnstsw
andb $0x45, %ah
cmpb $0x45, %ah
diff --git a/sysdeps/i386/fpu/e_powf.S b/sysdeps/i386/fpu/e_powf.S
index c835b978b9..c91545418d 100644
--- a/sysdeps/i386/fpu/e_powf.S
+++ b/sysdeps/i386/fpu/e_powf.S
@@ -1,5 +1,5 @@
/* ix87 specific implementation of pow function.
- Copyright (C) 1996, 1997, 1999, 2001, 2004, 2005
+ Copyright (C) 1996, 1997, 1999, 2001, 2004, 2005, 2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -155,10 +155,11 @@ ENTRY(__ieee754_powf)
2: /* y is a real number. */
fxch // x : y
fldl MO(one) // 1.0 : x : y
- fld %st(1) // x : 1.0 : x : y
- fsub %st(1) // x-1 : 1.0 : x : y
- fabs // |x-1| : 1.0 : x : y
- fcompl MO(limit) // 1.0 : x : y
+ fldl MO(limit) // 0.29 : 1.0 : x : y
+ fld %st(2) // x : 0.29 : 1.0 : x : y
+ fsub %st(2) // x-1 : 0.29 : 1.0 : x : y
+ fabs // |x-1| : 0.29 : 1.0 : x : y
+ fucompp // 1.0 : x : y
fnstsw
fxch // x : 1.0 : y
sahf
@@ -191,9 +192,10 @@ ENTRY(__ieee754_powf)
// y == ħinf
.align ALIGNARG(4)
12: fstp %st(0) // pop y
- flds 4(%esp) // x
- fabs
- fcompl MO(one) // < 1, == 1, or > 1
+ fldl MO(one) // 1
+ flds 4(%esp) // x : 1
+ fabs // abs(x) : 1
+ fucompp // < 1, == 1, or > 1
fnstsw
andb $0x45, %ah
cmpb $0x45, %ah
diff --git a/sysdeps/i386/fpu/e_powl.S b/sysdeps/i386/fpu/e_powl.S
index 74f422816a..6215496207 100644
--- a/sysdeps/i386/fpu/e_powl.S
+++ b/sysdeps/i386/fpu/e_powl.S
@@ -1,5 +1,5 @@
/* ix87 specific implementation of pow function.
- Copyright (C) 1996, 1997, 1998, 1999, 2001, 2004, 2005
+ Copyright (C) 1996, 1997, 1998, 1999, 2001, 2004, 2005, 2007
Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
@@ -161,10 +161,11 @@ ENTRY(__ieee754_powl)
2: /* y is a real number. */
fxch // x : y
fldl MO(one) // 1.0 : x : y
- fld %st(1) // x : 1.0 : x : y
- fsub %st(1) // x-1 : 1.0 : x : y
- fabs // |x-1| : 1.0 : x : y
- fcompl MO(limit) // 1.0 : x : y
+ fldl MO(limit) // 0.29 : 1.0 : x : y
+ fld %st(2) // x : 0.29 : 1.0 : x : y
+ fsub %st(2) // x-1 : 0.29 : 1.0 : x : y
+ fabs // |x-1| : 0.29 : 1.0 : x : y
+ fucompp // 1.0 : x : y
fnstsw
fxch // x : 1.0 : y
sahf
@@ -210,9 +211,10 @@ ENTRY(__ieee754_powl)
// y == ħinf
.align ALIGNARG(4)
12: fstp %st(0) // pop y
- fldt 4(%esp) // x
- fabs
- fcompl MO(one) // < 1, == 1, or > 1
+ fldl MO(one) // 1
+ fldt 4(%esp) // x : 1
+ fabs // abs(x) : 1
+ fucompp // < 1, == 1, or > 1
fnstsw
andb $0x45, %ah
cmpb $0x45, %ah
diff --git a/sysdeps/i386/fpu/math_private.h b/sysdeps/i386/fpu/math_private.h
new file mode 100644
index 0000000000..a426788ef1
--- /dev/null
+++ b/sysdeps/i386/fpu/math_private.h
@@ -0,0 +1,18 @@
+#ifndef _MATH_PRIVATE_H
+
+#define math_opt_barrier(x) \
+({ __typeof(x) __x; \
+ __asm ("" : "=t" (__x) : "0" (x)); \
+ __x; })
+#define math_force_eval(x) \
+do \
+ { \
+ if (sizeof (x) <= sizeof (double)) \
+ __asm __volatile ("" : : "m" (x)); \
+ else \
+ __asm __volatile ("" : : "f" (x)); \
+ } \
+while (0)
+
+#include <math/math_private.h>
+#endif
diff --git a/sysdeps/i386/fpu/s_nextafterl.c b/sysdeps/i386/fpu/s_nextafterl.c
index 5b617cb4e7..aef0a144e5 100644
--- a/sysdeps/i386/fpu/s_nextafterl.c
+++ b/sysdeps/i386/fpu/s_nextafterl.c
@@ -27,7 +27,7 @@ static char rcsid[] = "$NetBSD: $";
*/
#include "math.h"
-#include "math_private.h"
+#include <math_private.h>
#ifdef __STDC__
long double __nextafterl(long double x, long double y)
@@ -52,9 +52,12 @@ static char rcsid[] = "$NetBSD: $";
return x+y;
if(x==y) return y; /* x=y, return y */
if((ix|hx|lx)==0) { /* x == 0 */
+ long double u;
SET_LDOUBLE_WORDS(x,esy&0x8000,0,1);/* return +-minsubnormal */
- y = x*x;
- if(y==x) return y; else return x; /* raise underflow flag */
+ u = math_opt_barrier (x);
+ u = u * u;
+ math_force_eval (u); /* raise underflow flag */
+ return x;
}
if(esx>=0) { /* x > 0 */
if(esx>esy||((esx==esy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
@@ -109,12 +112,9 @@ static char rcsid[] = "$NetBSD: $";
}
esy = esx&0x7fff;
if(esy==0x7fff) return x+x; /* overflow */
- if(esy==0) { /* underflow */
- y = x*x;
- if(y!=x) { /* raise underflow flag */
- SET_LDOUBLE_WORDS(y,esx,hx,lx);
- return y;
- }
+ if(esy==0) {
+ long double u = x*x; /* underflow */
+ math_force_eval (u); /* raise underflow flag */
}
SET_LDOUBLE_WORDS(x,esx,hx,lx);
return x;
diff --git a/sysdeps/i386/fpu/s_nexttoward.c b/sysdeps/i386/fpu/s_nexttoward.c
index 2bd768e448..9bd86a3724 100644
--- a/sysdeps/i386/fpu/s_nexttoward.c
+++ b/sysdeps/i386/fpu/s_nexttoward.c
@@ -27,7 +27,8 @@ static char rcsid[] = "$NetBSD: $";
*/
#include "math.h"
-#include "math_private.h"
+#include <math_private.h>
+#include <float.h>
#ifdef __STDC__
double __nexttoward(double x, long double y)
@@ -52,10 +53,12 @@ static char rcsid[] = "$NetBSD: $";
return x+y;
if((long double) x==y) return y; /* x=y, return y */
if((ix|lx)==0) { /* x == 0 */
- double x2;
+ double u;
INSERT_WORDS(x,(esy&0x8000)<<16,1); /* return +-minsub */
- x2 = x*x;
- if(x2==x) return x2; else return x; /* raise underflow flag */
+ u = math_opt_barrier (x);
+ u = u * u;
+ math_force_eval (u); /* raise underflow flag */
+ return x;
}
if(hx>=0) { /* x > 0 */
if (esy>=0x8000||((ix>>20)&0x7ff)>iy-0x3c00
@@ -85,16 +88,14 @@ static char rcsid[] = "$NetBSD: $";
hy = hx&0x7ff00000;
if(hy>=0x7ff00000) {
x = x+x; /* overflow */
- /* Force conversion to double. */
- asm ("" : "=m"(x) : "m"(x));
+ if (FLT_EVAL_METHOD != 0 && FLT_EVAL_METHOD != 1)
+ /* Force conversion to double. */
+ asm ("" : "+m"(x));
return x;
}
- if(hy<0x00100000) { /* underflow */
- double x2 = x*x;
- if(x2!=x) { /* raise underflow flag */
- INSERT_WORDS(x2,hx,lx);
- return x2;
- }
+ if(hy<0x00100000) {
+ double u = x*x; /* underflow */
+ math_force_eval (u); /* raise underflow flag */
}
INSERT_WORDS(x,hx,lx);
return x;
diff --git a/sysdeps/i386/fpu/s_nexttowardf.c b/sysdeps/i386/fpu/s_nexttowardf.c
index 3fbe53c338..25f70e4f4d 100644
--- a/sysdeps/i386/fpu/s_nexttowardf.c
+++ b/sysdeps/i386/fpu/s_nexttowardf.c
@@ -19,7 +19,8 @@ static char rcsid[] = "$NetBSD: $";
#endif
#include "math.h"
-#include "math_private.h"
+#include <math_private.h>
+#include <float.h>
#ifdef __STDC__
float __nexttowardf(float x, long double y)
@@ -44,10 +45,12 @@ static char rcsid[] = "$NetBSD: $";
return x+y;
if((long double) x==y) return y; /* x=y, return y */
if(ix==0) { /* x == 0 */
- float x2;
+ float u;
SET_FLOAT_WORD(x,((esy&0x8000)<<16)|1);/* return +-minsub*/
- x2 = x*x;
- if(x2==x) return x2; else return x; /* raise underflow flag */
+ u = math_opt_barrier (x);
+ u = u * u;
+ math_force_eval (u); /* raise underflow flag */
+ return x;
}
if(hx>=0) { /* x > 0 */
if(esy>=0x8000||((ix>>23)&0xff)>iy-0x3f80
@@ -69,16 +72,14 @@ static char rcsid[] = "$NetBSD: $";
hy = hx&0x7f800000;
if(hy>=0x7f800000) {
x = x+x; /* overflow */
- /* Force conversion to float. */
- asm ("" : "=m"(x) : "m"(x));
+ if (FLT_EVAL_METHOD != 0)
+ /* Force conversion to float. */
+ asm ("" : "+m"(x));
return x;
}
- if(hy<0x00800000) { /* underflow */
- float x2 = x*x;
- if(x2!=x) { /* raise underflow flag */
- SET_FLOAT_WORD(x2,hx);
- return x2;
- }
+ if(hy<0x00800000) {
+ float u = x*x; /* underflow */
+ math_force_eval (u); /* raise underflow flag */
}
SET_FLOAT_WORD(x,hx);
return x;
diff --git a/sysdeps/i386/i486/bits/atomic.h b/sysdeps/i386/i486/bits/atomic.h
index a27734c37e..c748761758 100644
--- a/sysdeps/i386/i486/bits/atomic.h
+++ b/sysdeps/i386/i486/bits/atomic.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -18,7 +18,6 @@
02111-1307 USA. */
#include <stdint.h>
-#include <tls.h> /* For tcbhead_t. */
typedef int8_t atomic8_t;
@@ -77,40 +76,6 @@ typedef uintmax_t uatomic_max_t;
: "r" (newval), "m" (*mem), "0" (oldval)); \
ret; })
-
-#define __arch_c_compare_and_exchange_val_8_acq(mem, newval, oldval) \
- ({ __typeof (*mem) ret; \
- __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \
- "je 0f\n\t" \
- "lock\n" \
- "0:\tcmpxchgb %b2, %1" \
- : "=a" (ret), "=m" (*mem) \
- : "q" (newval), "m" (*mem), "0" (oldval), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- ret; })
-
-#define __arch_c_compare_and_exchange_val_16_acq(mem, newval, oldval) \
- ({ __typeof (*mem) ret; \
- __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \
- "je 0f\n\t" \
- "lock\n" \
- "0:\tcmpxchgw %w2, %1" \
- : "=a" (ret), "=m" (*mem) \
- : "r" (newval), "m" (*mem), "0" (oldval), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- ret; })
-
-#define __arch_c_compare_and_exchange_val_32_acq(mem, newval, oldval) \
- ({ __typeof (*mem) ret; \
- __asm __volatile ("cmpl $0, %%gs:%P5\n\t" \
- "je 0f\n\t" \
- "lock\n" \
- "0:\tcmpxchgl %2, %1" \
- : "=a" (ret), "=m" (*mem) \
- : "r" (newval), "m" (*mem), "0" (oldval), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- ret; })
-
/* XXX We do not really need 64-bit compare-and-exchange. At least
not in the moment. Using it would mean causing portability
problems since not many other 32-bit architectures have support for
@@ -120,8 +85,6 @@ typedef uintmax_t uatomic_max_t;
#if 1
# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
({ __typeof (*mem) ret = *(mem); abort (); ret = (newval); ret = (oldval); })
-# define __arch_c_compare_and_exchange_val_64_acq(mem, newval, oldval) \
- ({ __typeof (*mem) ret = *(mem); abort (); ret = (newval); ret = (oldval); })
#else
# ifdef __PIC__
# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
@@ -137,24 +100,6 @@ typedef uintmax_t uatomic_max_t;
& 0xffffffff), \
"d" (((unsigned long long int) (oldval)) >> 32)); \
ret; })
-
-# define __arch_c_compare_and_exchange_val_64_acq(mem, newval, oldval) \
- ({ __typeof (*mem) ret; \
- __asm __volatile ("xchgl %2, %%ebx\n\t" \
- "cmpl $0, %%gs:%P7\n\t" \
- "je 0f\n\t" \
- "lock\n" \
- "0:\tcmpxchg8b %1\n\t" \
- "xchgl %2, %%ebx" \
- : "=A" (ret), "=m" (*mem) \
- : "DS" (((unsigned long long int) (newval)) \
- & 0xffffffff), \
- "c" (((unsigned long long int) (newval)) >> 32), \
- "m" (*mem), "a" (((unsigned long long int) (oldval)) \
- & 0xffffffff), \
- "d" (((unsigned long long int) (oldval)) >> 32), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- ret; })
# else
# define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
({ __typeof (*mem) ret; \
@@ -167,22 +112,6 @@ typedef uintmax_t uatomic_max_t;
& 0xffffffff), \
"d" (((unsigned long long int) (oldval)) >> 32)); \
ret; })
-
-# define __arch_c_compare_and_exchange_val_64_acq(mem, newval, oldval) \
- ({ __typeof (*mem) ret; \
- __asm __volatile ("cmpl $0, %%gs:%P7\n\t" \
- "je 0f\n\t" \
- "lock\n" \
- "0:\tcmpxchg8b %1" \
- : "=A" (ret), "=m" (*mem) \
- : "b" (((unsigned long long int) (newval)) \
- & 0xffffffff), \
- "c" (((unsigned long long int) (newval)) >> 32), \
- "m" (*mem), "a" (((unsigned long long int) (oldval)) \
- & 0xffffffff), \
- "d" (((unsigned long long int) (oldval)) >> 32), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- ret; })
# endif
#endif
@@ -210,24 +139,21 @@ typedef uintmax_t uatomic_max_t;
result; })
-#define __arch_exchange_and_add_body(lock, pfx, mem, value) \
+#define atomic_exchange_and_add(mem, value) \
({ __typeof (*mem) __result; \
__typeof (value) __addval = (value); \
if (sizeof (*mem) == 1) \
- __asm __volatile (lock "xaddb %b0, %1" \
+ __asm __volatile (LOCK_PREFIX "xaddb %b0, %1" \
: "=r" (__result), "=m" (*mem) \
- : "0" (__addval), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
+ : "0" (__addval), "m" (*mem)); \
else if (sizeof (*mem) == 2) \
- __asm __volatile (lock "xaddw %w0, %1" \
+ __asm __volatile (LOCK_PREFIX "xaddw %w0, %1" \
: "=r" (__result), "=m" (*mem) \
- : "0" (__addval), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
+ : "0" (__addval), "m" (*mem)); \
else if (sizeof (*mem) == 4) \
- __asm __volatile (lock "xaddl %0, %1" \
+ __asm __volatile (LOCK_PREFIX "xaddl %0, %1" \
: "=r" (__result), "=m" (*mem) \
- : "0" (__addval), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
+ : "0" (__addval), "m" (*mem)); \
else \
{ \
__typeof (mem) __memp = (mem); \
@@ -235,64 +161,41 @@ typedef uintmax_t uatomic_max_t;
__result = *__memp; \
do \
__tmpval = __result; \
- while ((__result = pfx##_compare_and_exchange_val_64_acq \
+ while ((__result = __arch_compare_and_exchange_val_64_acq \
(__memp, __result + __addval, __result)) == __tmpval); \
} \
__result; })
-#define atomic_exchange_and_add(mem, value) \
- __arch_exchange_and_add_body (LOCK_PREFIX, __arch, mem, value)
-
-#define __arch_exchange_and_add_cprefix \
- "cmpl $0, %%gs:%P4\n\tje 0f\n\tlock\n0:\t"
-
-#define catomic_exchange_and_add(mem, value) \
- __arch_exchange_and_add_body (__arch_exchange_and_add_cprefix, __arch_c, \
- mem, value)
-
-
-#define __arch_add_body(lock, pfx, mem, value) \
- do { \
- if (__builtin_constant_p (value) && (value) == 1) \
- atomic_increment (mem); \
- else if (__builtin_constant_p (value) && (value) == -1) \
- atomic_decrement (mem); \
- else if (sizeof (*mem) == 1) \
- __asm __volatile (lock "addb %b1, %0" \
- : "=m" (*mem) \
- : "ir" (value), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 2) \
- __asm __volatile (lock "addw %w1, %0" \
- : "=m" (*mem) \
- : "ir" (value), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 4) \
- __asm __volatile (lock "addl %1, %0" \
- : "=m" (*mem) \
- : "ir" (value), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else \
- { \
- __typeof (value) __addval = (value); \
- __typeof (mem) __memp = (mem); \
- __typeof (*mem) __oldval = *__memp; \
- __typeof (*mem) __tmpval; \
- do \
- __tmpval = __oldval; \
- while ((__oldval = pfx##_compare_and_exchange_val_64_acq \
- (__memp, __oldval + __addval, __oldval)) == __tmpval); \
- } \
- } while (0)
#define atomic_add(mem, value) \
- __arch_add_body (LOCK_PREFIX, __arch, mem, value)
-
-#define __arch_add_cprefix \
- "cmpl $0, %%gs:%P3\n\tje 0f\n\tlock\n0:\t"
-
-#define catomic_add(mem, value) \
- __arch_add_body (__arch_add_cprefix, __arch_c, mem, value)
+ (void) ({ if (__builtin_constant_p (value) && (value) == 1) \
+ atomic_increment (mem); \
+ else if (__builtin_constant_p (value) && (value) == -1) \
+ atomic_decrement (mem); \
+ else if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "addb %b1, %0" \
+ : "=m" (*mem) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "addw %w1, %0" \
+ : "=m" (*mem) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "addl %1, %0" \
+ : "=m" (*mem) \
+ : "ir" (value), "m" (*mem)); \
+ else \
+ { \
+ __typeof (value) __addval = (value); \
+ __typeof (mem) __memp = (mem); \
+ __typeof (*mem) __oldval = *__memp; \
+ __typeof (*mem) __tmpval; \
+ do \
+ __tmpval = __oldval; \
+ while ((__oldval = __arch_compare_and_exchange_val_64_acq \
+ (__memp, __oldval + __addval, __oldval)) == __tmpval); \
+ } \
+ })
#define atomic_add_negative(mem, value) \
@@ -333,42 +236,30 @@ typedef uintmax_t uatomic_max_t;
__result; })
-#define __arch_increment_body(lock, pfx, mem) \
- do { \
- if (sizeof (*mem) == 1) \
- __asm __volatile (lock "incb %b0" \
- : "=m" (*mem) \
- : "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 2) \
- __asm __volatile (lock "incw %w0" \
- : "=m" (*mem) \
- : "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 4) \
- __asm __volatile (lock "incl %0" \
- : "=m" (*mem) \
- : "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else \
- { \
- __typeof (mem) __memp = (mem); \
- __typeof (*mem) __oldval = *__memp; \
- __typeof (*mem) __tmpval; \
- do \
- __tmpval = __oldval; \
- while ((__oldval = pfx##_compare_and_exchange_val_64_acq \
- (__memp, __oldval + 1, __oldval)) == __tmpval); \
- } \
- } while (0)
-
-#define atomic_increment(mem) __arch_increment_body (LOCK_PREFIX, __arch, mem)
-
-#define __arch_increment_cprefix \
- "cmpl $0, %%gs:%P2\n\tje 0f\n\tlock\n0:\t"
-
-#define catomic_increment(mem) \
- __arch_increment_body (__arch_increment_cprefix, __arch_c, mem)
+#define atomic_increment(mem) \
+ (void) ({ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "incb %b0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "incw %w0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "incl %0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else \
+ { \
+ __typeof (mem) __memp = (mem); \
+ __typeof (*mem) __oldval = *__memp; \
+ __typeof (*mem) __tmpval; \
+ do \
+ __tmpval = __oldval; \
+ while ((__oldval = __arch_compare_and_exchange_val_64_acq \
+ (__memp, __oldval + 1, __oldval)) == __tmpval); \
+ } \
+ })
#define atomic_increment_and_test(mem) \
@@ -390,42 +281,30 @@ typedef uintmax_t uatomic_max_t;
__result; })
-#define __arch_decrement_body(lock, pfx, mem) \
- do { \
- if (sizeof (*mem) == 1) \
- __asm __volatile (lock "decb %b0" \
- : "=m" (*mem) \
- : "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 2) \
- __asm __volatile (lock "decw %w0" \
- : "=m" (*mem) \
- : "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 4) \
- __asm __volatile (lock "decl %0" \
- : "=m" (*mem) \
- : "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else \
- { \
- __typeof (mem) __memp = (mem); \
- __typeof (*mem) __oldval = *__memp; \
- __typeof (*mem) __tmpval; \
- do \
- __tmpval = __oldval; \
- while ((__oldval = pfx##_compare_and_exchange_val_64_acq \
- (__memp, __oldval - 1, __oldval)) == __tmpval); \
- } \
- } while (0)
-
-#define atomic_decrement(mem) __arch_decrement_body (LOCK_PREFIX, __arch, mem)
-
-#define __arch_decrement_cprefix \
- "cmpl $0, %%gs:%P2\n\tje 0f\n\tlock\n0:\t"
-
-#define catomic_decrement(mem) \
- __arch_decrement_body (__arch_decrement_cprefix, __arch_c, mem)
+#define atomic_decrement(mem) \
+ (void) ({ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "decb %b0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "decw %w0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "decl %0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else \
+ { \
+ __typeof (mem) __memp = (mem); \
+ __typeof (*mem) __oldval = *__memp; \
+ __typeof (*mem) __tmpval; \
+ do \
+ __tmpval = __oldval; \
+ while ((__oldval = __arch_compare_and_exchange_val_64_acq \
+ (__memp, __oldval - 1, __oldval)) == __tmpval); \
+ } \
+ })
#define atomic_decrement_and_test(mem) \
@@ -448,22 +327,21 @@ typedef uintmax_t uatomic_max_t;
#define atomic_bit_set(mem, bit) \
- do { \
- if (sizeof (*mem) == 1) \
- __asm __volatile (LOCK_PREFIX "orb %b2, %0" \
- : "=m" (*mem) \
- : "m" (*mem), "ir" (1 << (bit))); \
- else if (sizeof (*mem) == 2) \
- __asm __volatile (LOCK_PREFIX "orw %w2, %0" \
- : "=m" (*mem) \
- : "m" (*mem), "ir" (1 << (bit))); \
- else if (sizeof (*mem) == 4) \
- __asm __volatile (LOCK_PREFIX "orl %2, %0" \
- : "=m" (*mem) \
- : "m" (*mem), "ir" (1 << (bit))); \
- else \
- abort (); \
- } while (0)
+ (void) ({ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "orb %b2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "ir" (1 << (bit))); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "orw %w2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "ir" (1 << (bit))); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "orl %2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "ir" (1 << (bit))); \
+ else \
+ abort (); \
+ })
#define atomic_bit_test_set(mem, bit) \
@@ -486,51 +364,3 @@ typedef uintmax_t uatomic_max_t;
#define atomic_delay() asm ("rep; nop")
-
-
-#define atomic_and(mem, mask) \
- do { \
- if (sizeof (*mem) == 1) \
- __asm __volatile (LOCK_PREFIX "andb %1, %b0" \
- : "=m" (*mem) \
- : "ir" (mask), "m" (*mem)); \
- else if (sizeof (*mem) == 2) \
- __asm __volatile (LOCK_PREFIX "andw %1, %w0" \
- : "=m" (*mem) \
- : "ir" (mask), "m" (*mem)); \
- else if (sizeof (*mem) == 4) \
- __asm __volatile (LOCK_PREFIX "andl %1, %0" \
- : "=m" (*mem) \
- : "ir" (mask), "m" (*mem)); \
- else \
- abort (); \
- } while (0)
-
-
-#define __arch_or_body(lock, mem, mask) \
- do { \
- if (sizeof (*mem) == 1) \
- __asm __volatile (lock "orb %1, %b0" \
- : "=m" (*mem) \
- : "ir" (mask), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 2) \
- __asm __volatile (lock "orw %1, %w0" \
- : "=m" (*mem) \
- : "ir" (mask), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else if (sizeof (*mem) == 4) \
- __asm __volatile (lock "orl %1, %0" \
- : "=m" (*mem) \
- : "ir" (mask), "m" (*mem), \
- "i" (offsetof (tcbhead_t, multiple_threads))); \
- else \
- abort (); \
- } while (0)
-
-#define atomic_or(mem, mask) __arch_or_body (LOCK_PREFIX, mem, mask)
-
-#define __arch_or_cprefix \
- "cmpl $0, %%gs:%P3\n\tje 0f\n\tlock\n0:\t"
-
-#define catomic_or(mem, mask) __arch_or_body (__arch_or_cprefix, mem, mask)
diff --git a/sysdeps/i386/i686/memcmp.S b/sysdeps/i386/i686/memcmp.S
index 4fa6adea98..4bd5394bec 100644
--- a/sysdeps/i386/i686/memcmp.S
+++ b/sysdeps/i386/i686/memcmp.S
@@ -1,5 +1,5 @@
/* Compare two memory blocks for differences in the first COUNT bytes.
- Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 2004, 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -44,9 +44,13 @@
absolute address. */ \
addl (%ebx,INDEX,4), %ebx
+#ifdef HAVE_HIDDEN
.section .gnu.linkonce.t.__i686.get_pc_thunk.bx,"ax",@progbits
.globl __i686.get_pc_thunk.bx
.hidden __i686.get_pc_thunk.bx
+#else
+ .text
+#endif
ALIGN (4)
.type __i686.get_pc_thunk.bx,@function
__i686.get_pc_thunk.bx:
@@ -380,38 +384,38 @@ END (BP_SYM (memcmp))
.section .rodata
ALIGN (2)
L(table_32bytes) :
- .long L(0bytes) - L(table_32bytes)
- .long L(1bytes) - L(table_32bytes)
- .long L(2bytes) - L(table_32bytes)
- .long L(3bytes) - L(table_32bytes)
- .long L(4bytes) - L(table_32bytes)
- .long L(5bytes) - L(table_32bytes)
- .long L(6bytes) - L(table_32bytes)
- .long L(7bytes) - L(table_32bytes)
- .long L(8bytes) - L(table_32bytes)
- .long L(9bytes) - L(table_32bytes)
- .long L(10bytes) - L(table_32bytes)
- .long L(11bytes) - L(table_32bytes)
- .long L(12bytes) - L(table_32bytes)
- .long L(13bytes) - L(table_32bytes)
- .long L(14bytes) - L(table_32bytes)
- .long L(15bytes) - L(table_32bytes)
- .long L(16bytes) - L(table_32bytes)
- .long L(17bytes) - L(table_32bytes)
- .long L(18bytes) - L(table_32bytes)
- .long L(19bytes) - L(table_32bytes)
- .long L(20bytes) - L(table_32bytes)
- .long L(21bytes) - L(table_32bytes)
- .long L(22bytes) - L(table_32bytes)
- .long L(23bytes) - L(table_32bytes)
- .long L(24bytes) - L(table_32bytes)
- .long L(25bytes) - L(table_32bytes)
- .long L(26bytes) - L(table_32bytes)
- .long L(27bytes) - L(table_32bytes)
- .long L(28bytes) - L(table_32bytes)
- .long L(29bytes) - L(table_32bytes)
- .long L(30bytes) - L(table_32bytes)
- .long L(31bytes) - L(table_32bytes)
+ .long L(0bytes) - . + 0x0
+ .long L(1bytes) - . + 0x4
+ .long L(2bytes) - . + 0x8
+ .long L(3bytes) - . + 0xc
+ .long L(4bytes) - . + 0x10
+ .long L(5bytes) - . + 0x14
+ .long L(6bytes) - . + 0x18
+ .long L(7bytes) - . + 0x1c
+ .long L(8bytes) - . + 0x20
+ .long L(9bytes) - . + 0x24
+ .long L(10bytes) - . + 0x28
+ .long L(11bytes) - . + 0x2c
+ .long L(12bytes) - . + 0x30
+ .long L(13bytes) - . + 0x34
+ .long L(14bytes) - . + 0x38
+ .long L(15bytes) - . + 0x3c
+ .long L(16bytes) - . + 0x40
+ .long L(17bytes) - . + 0x44
+ .long L(18bytes) - . + 0x48
+ .long L(19bytes) - . + 0x4c
+ .long L(20bytes) - . + 0x50
+ .long L(21bytes) - . + 0x54
+ .long L(22bytes) - . + 0x58
+ .long L(23bytes) - . + 0x5c
+ .long L(24bytes) - . + 0x60
+ .long L(25bytes) - . + 0x64
+ .long L(26bytes) - . + 0x68
+ .long L(27bytes) - . + 0x6c
+ .long L(28bytes) - . + 0x70
+ .long L(29bytes) - . + 0x74
+ .long L(30bytes) - . + 0x78
+ .long L(31bytes) - . + 0x7c
#undef bcmp
diff --git a/sysdeps/i386/ldbl2mpn.c b/sysdeps/i386/ldbl2mpn.c
index bf4e4ff43f..01be777270 100644
--- a/sysdeps/i386/ldbl2mpn.c
+++ b/sysdeps/i386/ldbl2mpn.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+/* Copyright (C) 1995, 1996, 1997, 2000, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -19,7 +19,7 @@
#include "gmp.h"
#include "gmp-impl.h"
#include "longlong.h"
-#include "ieee754.h"
+#include <ieee754.h>
#include <float.h>
#include <stdlib.h>
@@ -46,7 +46,7 @@ __mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size,
#elif BITS_PER_MP_LIMB == 64
/* Hopefully the compiler will combine the two bitfield extracts
and this composition into just the original quadword extract. */
- res_ptr[0] = ((unsigned long int) u.ieee.mantissa0 << 32) | u.ieee.mantissa1;
+ res_ptr[0] = ((mp_limb_t) u.ieee.mantissa0 << 32) | u.ieee.mantissa1;
#define N 1
#else
#error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
@@ -109,6 +109,13 @@ __mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size,
}
}
}
+ else if (u.ieee.exponent < 0x7fff
+#if N == 2
+ && res_ptr[0] == 0
+#endif
+ && res_ptr[N - 1] == 0)
+ /* Pseudo zero. */
+ *expt = 0;
return N;
}
diff --git a/sysdeps/i386/soft-fp/sfp-machine.h b/sysdeps/i386/soft-fp/sfp-machine.h
new file mode 100644
index 0000000000..ed71ae418a
--- /dev/null
+++ b/sysdeps/i386/soft-fp/sfp-machine.h
@@ -0,0 +1,89 @@
+#define _FP_W_TYPE_SIZE 32
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+#define __FP_FRAC_ADD_2(rh, rl, xh, xl, yh, yl) \
+ __asm__("addl %5,%1; adcl %3,%0" \
+ : "=r"(rh), "=r"(rl) \
+ : "%0"(xh), "g"(yh), "%1"(xl), "g"(yl) \
+ : "cc")
+
+#define __FP_FRAC_ADD_4(r3,r2,r1,r0,x3,x2,x1,x0,y3,y2,y1,y0) \
+ do { \
+ __asm__ volatile("addl %5,%1; adcl %3,%0" \
+ : "=r"(r1), "=r"(r0) \
+ : "%0"(x1), "g"(y1), "%1"(x0), "g"(y0) \
+ : "cc"); \
+ __asm__ volatile("adcl %5,%1; adcl %3,%0" \
+ : "=r"(r3), "=r"(r2) \
+ : "%0"(x3), "g"(y3), "%1"(x2), "g"(y2) \
+ : "cc"); \
+ } while (0)
+
+#define __FP_FRAC_SUB_2(rh, rl, xh, xl, yh, yl) \
+ __asm__("subl %5,%1; sbbl %4,%0" \
+ : "=r"(rh), "=r"(rl) \
+ : "0"(xh), "1"(xl), "g"(yh), "g"(yl) \
+ : "cc")
+
+#define __FP_CLZ(r, x) \
+ do { \
+ __asm__("bsrl %1,%0" : "=r"(r) : "g"(x) : "cc"); \
+ r ^= 31; \
+ } while (0)
+
+#define _i386_mul_32_64(rh, rl, x, y) \
+ __asm__("mull %2" : "=d"(rh), "=a"(rl) : "%g"(x), "1"(y) : "cc")
+
+#define _i386_div_64_32(q, r, nh, nl, d) \
+ __asm__ ("divl %4" : "=a"(q), "=d"(r) : "0"(nl), "1"(nh), "g"(d) : "cc")
+
+
+#define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,_i386_mul_32_64)
+#define _FP_MUL_MEAT_D(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,_i386_mul_32_64)
+
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_udiv(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
+
+#define _FP_NANFRAC_S _FP_QNANBIT_S
+#define _FP_NANFRAC_D _FP_QNANBIT_D, 0
+#define _FP_NANFRAC_Q _FP_QNANBIT_Q, 0, 0, 0
+#define _FP_NANSIGN_S 1
+#define _FP_NANSIGN_D 1
+#define _FP_NANSIGN_Q 1
+
+#define _FP_KEEPNANFRACP 1
+/* Here is something Intel misdesigned: the specs don't define
+ the case where we have two NaNs with same mantissas, but
+ different sign. Different operations pick up different NaNs.
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ if (_FP_FRAC_GT_##wc(X, Y) \
+ || (_FP_FRAC_EQ_##wc(X,Y) && (OP == '+' || OP == '*'))) \
+ { \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ } \
+ else \
+ { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,Y); \
+ } \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+#define FP_EX_INVALID (1 << 0)
+#define FP_EX_DENORM (1 << 1)
+#define FP_EX_DIVZERO (1 << 2)
+#define FP_EX_OVERFLOW (1 << 3)
+#define FP_EX_UNDERFLOW (1 << 4)
+#define FP_EX_INEXACT (1 << 5)
+
+#define FP_RND_NEAREST 0
+#define FP_RND_ZERO 3
+#define FP_RND_PINF 2
+#define FP_RND_MINF 1
diff --git a/sysdeps/i386/sysdep.h b/sysdeps/i386/sysdep.h
index e03a8e926d..2739cb00b3 100644
--- a/sysdeps/i386/sysdep.h
+++ b/sysdeps/i386/sysdep.h
@@ -1,6 +1,5 @@
/* Assembler macros for i386.
- Copyright (C) 1991-93,95,96,98,2002,2003,2005,2006
- Free Software Foundation, Inc.
+ Copyright (C) 1991-93,95,96,98,2002,2003,2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -133,7 +132,15 @@ lose: SYSCALL_PIC_SETUP \
cfi_adjust_cfa_offset (-4); \
addl $_GLOBAL_OFFSET_TABLE+[.-0b], %ebx;
-# define SETUP_PIC_REG(reg) \
+# ifndef HAVE_HIDDEN
+# define SETUP_PIC_REG(reg) \
+ call 1f; \
+ .subsection 1; \
+1:movl (%esp), %e##reg; \
+ ret; \
+ .previous
+# else
+# define SETUP_PIC_REG(reg) \
.ifndef __i686.get_pc_thunk.reg; \
.section .gnu.linkonce.t.__i686.get_pc_thunk.reg,"ax",@progbits; \
.globl __i686.get_pc_thunk.reg; \
@@ -146,6 +153,7 @@ __i686.get_pc_thunk.reg: \
.previous; \
.endif; \
call __i686.get_pc_thunk.reg
+# endif
# define LOAD_PIC_REG(reg) \
SETUP_PIC_REG(reg); addl $_GLOBAL_OFFSET_TABLE_, %e##reg