about summary refs log tree commit diff
path: root/sysdeps
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/ia64/fpu/math_ldbl.h100
-rw-r--r--sysdeps/ia64/ieee754.h205
-rw-r--r--sysdeps/ieee754/ldbl-96/s_ceill.c9
-rw-r--r--sysdeps/ieee754/ldbl-96/s_floorl.c9
-rw-r--r--sysdeps/unix/sysv/linux/i386/readelflib.c81
5 files changed, 400 insertions, 4 deletions
diff --git a/sysdeps/ia64/fpu/math_ldbl.h b/sysdeps/ia64/fpu/math_ldbl.h
new file mode 100644
index 0000000000..e329b70cf7
--- /dev/null
+++ b/sysdeps/ia64/fpu/math_ldbl.h
@@ -0,0 +1,100 @@
+#ifndef _MATH_PRIVATE_H_
+#error "Never use <math_ldbl.h> directly; include <math_private.h> instead."
+#endif
+
+/* A union which permits us to convert between a long double and
+   three 32 bit ints.  */
+
+#if __FLOAT_WORD_ORDER == BIG_ENDIAN
+
+typedef union
+{
+  long double value;
+  struct
+  {
+    unsigned int empty0:32;
+    unsigned int sign_exponent:16;
+    unsigned int empty1:16;
+    u_int32_t msw;
+    u_int32_t lsw;
+  } parts;
+} ieee_long_double_shape_type;
+
+#endif
+
+#if __FLOAT_WORD_ORDER == LITTLE_ENDIAN
+
+typedef union
+{
+  long double value;
+  struct
+  {
+    u_int32_t lsw;
+    u_int32_t msw;
+    unsigned int sign_exponent:16;
+    unsigned int empty1:16;
+    unsigned int empty0:32;
+  } parts;
+} ieee_long_double_shape_type;
+
+#endif
+
+/* Get three 32 bit ints from a double.  */
+
+#define GET_LDOUBLE_WORDS(exp,ix0,ix1,d)			\
+do {								\
+  ieee_long_double_shape_type ew_u;				\
+  ew_u.value = (d);						\
+  (exp) = ew_u.parts.sign_exponent;				\
+  (ix0) = ew_u.parts.msw;					\
+  (ix1) = ew_u.parts.lsw;					\
+} while (0)
+
+/* Set a double from two 32 bit ints.  */
+
+#define SET_LDOUBLE_WORDS(d,exp,ix0,ix1)			\
+do {								\
+  ieee_long_double_shape_type iw_u;				\
+  iw_u.parts.sign_exponent = (exp);				\
+  iw_u.parts.msw = (ix0);					\
+  iw_u.parts.lsw = (ix1);					\
+  (d) = iw_u.value;						\
+} while (0)
+
+/* Get the more significant 32 bits of a long double mantissa.  */
+
+#define GET_LDOUBLE_MSW(v,d)					\
+do {								\
+  ieee_long_double_shape_type sh_u;				\
+  sh_u.value = (d);						\
+  (v) = sh_u.parts.msw;						\
+} while (0)
+
+/* Set the more significant 32 bits of a long double mantissa from an int.  */
+
+#define SET_LDOUBLE_MSW(d,v)					\
+do {								\
+  ieee_long_double_shape_type sh_u;				\
+  sh_u.value = (d);						\
+  sh_u.parts.msw = (v);						\
+  (d) = sh_u.value;						\
+} while (0)
+
+/* Get int from the exponent of a long double.  */
+
+#define GET_LDOUBLE_EXP(exp,d)					\
+do {								\
+  ieee_long_double_shape_type ge_u;				\
+  ge_u.value = (d);						\
+  (exp) = ge_u.parts.sign_exponent;				\
+} while (0)
+
+/* Set exponent of a long double from an int.  */
+
+#define SET_LDOUBLE_EXP(d,exp)					\
+do {								\
+  ieee_long_double_shape_type se_u;				\
+  se_u.value = (d);						\
+  se_u.parts.sign_exponent = (exp);				\
+  (d) = se_u.value;						\
+} while (0)
diff --git a/sysdeps/ia64/ieee754.h b/sysdeps/ia64/ieee754.h
new file mode 100644
index 0000000000..ec6b5518c6
--- /dev/null
+++ b/sysdeps/ia64/ieee754.h
@@ -0,0 +1,205 @@
+/* Copyright (C) 2000 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _IEEE754_H
+
+#define _IEEE754_H 1
+#include <features.h>
+
+#include <endian.h>
+
+__BEGIN_DECLS
+
+union ieee754_float
+  {
+    float f;
+
+    /* This is the IEEE 754 single-precision format.  */
+    struct
+      {
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int negative:1;
+	unsigned int exponent:8;
+	unsigned int mantissa:23;
+#endif				/* Big endian.  */
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned int mantissa:23;
+	unsigned int exponent:8;
+	unsigned int negative:1;
+#endif				/* Little endian.  */
+      } ieee;
+
+    /* This format makes it easier to see if a NaN is a signalling NaN.  */
+    struct
+      {
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int negative:1;
+	unsigned int exponent:8;
+	unsigned int quiet_nan:1;
+	unsigned int mantissa:22;
+#endif				/* Big endian.  */
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned int mantissa:22;
+	unsigned int quiet_nan:1;
+	unsigned int exponent:8;
+	unsigned int negative:1;
+#endif				/* Little endian.  */
+      } ieee_nan;
+  };
+
+#define IEEE754_FLOAT_BIAS	0x7f /* Added to exponent.  */
+
+
+union ieee754_double
+  {
+    double d;
+
+    /* This is the IEEE 754 double-precision format.  */
+    struct
+      {
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int negative:1;
+	unsigned int exponent:11;
+	/* Together these comprise the mantissa.  */
+	unsigned int mantissa0:20;
+	unsigned int mantissa1:32;
+#endif				/* Big endian.  */
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+# if	__FLOAT_WORD_ORDER == BIG_ENDIAN
+	unsigned int mantissa0:20;
+	unsigned int exponent:11;
+	unsigned int negative:1;
+	unsigned int mantissa1:32;
+# else
+	/* Together these comprise the mantissa.  */
+	unsigned int mantissa1:32;
+	unsigned int mantissa0:20;
+	unsigned int exponent:11;
+	unsigned int negative:1;
+# endif
+#endif				/* Little endian.  */
+      } ieee;
+
+    /* This format makes it easier to see if a NaN is a signalling NaN.  */
+    struct
+      {
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int negative:1;
+	unsigned int exponent:11;
+	unsigned int quiet_nan:1;
+	/* Together these comprise the mantissa.  */
+	unsigned int mantissa0:19;
+	unsigned int mantissa1:32;
+#else
+# if	__FLOAT_WORD_ORDER == BIG_ENDIAN
+	unsigned int mantissa0:19;
+	unsigned int quiet_nan:1;
+	unsigned int exponent:11;
+	unsigned int negative:1;
+	unsigned int mantissa1:32;
+# else
+	/* Together these comprise the mantissa.  */
+	unsigned int mantissa1:32;
+	unsigned int mantissa0:19;
+	unsigned int quiet_nan:1;
+	unsigned int exponent:11;
+	unsigned int negative:1;
+# endif
+#endif
+      } ieee_nan;
+  };
+
+#define IEEE754_DOUBLE_BIAS	0x3ff /* Added to exponent.  */
+
+
+union ieee854_long_double
+  {
+    long double d;
+
+    /* This is the IEEE 854 double-extended-precision format.  */
+    struct
+      {
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int empty0:32;
+	unsigned int negative:1;
+	unsigned int exponent:15;
+	unsigned int empty1:16;
+	unsigned int mantissa0:32;
+	unsigned int mantissa1:32;
+#endif
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+# if	__FLOAT_WORD_ORDER == BIG_ENDIAN
+	unsigned int empty0:32;
+	unsigned int exponent:15;
+	unsigned int negative:1;
+	unsigned int empty1:16;
+	unsigned int mantissa0:32;
+	unsigned int mantissa1:32;
+# else
+	unsigned int mantissa1:32;
+	unsigned int mantissa0:32;
+	unsigned int exponent:15;
+	unsigned int negative:1;
+	unsigned int empty1:16;
+	unsigned int empty0:32;
+# endif
+#endif
+      } ieee;
+
+    /* This is for NaNs in the IEEE 854 double-extended-precision format.  */
+    struct
+      {
+#if	__BYTE_ORDER == __BIG_ENDIAN
+	unsigned int empty0:32;
+	unsigned int negative:1;
+	unsigned int exponent:15;
+	unsigned int empty1:16;
+	unsigned int one:1;
+	unsigned int quiet_nan:1;
+	unsigned int mantissa0:30;
+	unsigned int mantissa1:32;
+#endif
+#if	__BYTE_ORDER == __LITTLE_ENDIAN
+# if	__FLOAT_WORD_ORDER == BIG_ENDIAN
+	unsigned int empty0:32;
+	unsigned int exponent:15;
+	unsigned int negative:1;
+	unsigned int empty1:16;
+	unsigned int mantissa0:30;
+	unsigned int quiet_nan:1;
+	unsigned int one:1;
+	unsigned int mantissa1:32;
+# else
+	unsigned int mantissa1:32;
+	unsigned int mantissa0:30;
+	unsigned int quiet_nan:1;
+	unsigned int one:1;
+	unsigned int exponent:15;
+	unsigned int negative:1;
+	unsigned int empty1:16;
+	unsigned int empty0:32;
+# endif
+#endif
+      } ieee_nan;
+  };
+
+#define IEEE854_LONG_DOUBLE_BIAS 0x3fff
+
+__END_DECLS
+
+#endif /* ieee754.h */
diff --git a/sysdeps/ieee754/ldbl-96/s_ceill.c b/sysdeps/ieee754/ldbl-96/s_ceill.c
index d53f3954ba..b99097f812 100644
--- a/sysdeps/ieee754/ldbl-96/s_ceill.c
+++ b/sysdeps/ieee754/ldbl-96/s_ceill.c
@@ -59,8 +59,13 @@ static long double huge = 1.0e4930;
 		if(((i0&i)|i1)==0) return x; /* x is integral */
 		if(huge+x>0.0) {	/* raise inexact flag */
 		    if(sx==0) {
-			if (j0>0) i0 += (0x80000000)>>j0;
-			else ++se;
+			if (j0>0 && (i0+(0x80000000>>j0))>i0)
+			  i0+=0x80000000>>j0;
+			else
+			  {
+			    i = 0x7fffffff;
+			    ++se;
+			  }
 		    }
 		    i0 &= (~i); i1=0;
 		}
diff --git a/sysdeps/ieee754/ldbl-96/s_floorl.c b/sysdeps/ieee754/ldbl-96/s_floorl.c
index fb0c37e801..7115dbad9b 100644
--- a/sysdeps/ieee754/ldbl-96/s_floorl.c
+++ b/sysdeps/ieee754/ldbl-96/s_floorl.c
@@ -60,8 +60,13 @@ static long double huge = 1.0e4930;
 		if(((i0&i)|i1)==0) return x; /* x is integral */
 		if(huge+x>0.0) {	/* raise inexact flag */
 		    if(sx) {
-			if (j0>0) i0 += (0x80000000)>>j0;
-			else ++se;
+			if (j0>0 && (i0+(0x80000000>>j0))>i0)
+			  i0 += (0x80000000)>>j0;
+			else
+			  {
+			    i = 0x7fffffff;
+			    ++se;
+			  }
 		    }
 		    i0 &= (~i); i1=0;
 		}
diff --git a/sysdeps/unix/sysv/linux/i386/readelflib.c b/sysdeps/unix/sysv/linux/i386/readelflib.c
new file mode 100644
index 0000000000..53a6908e81
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/readelflib.c
@@ -0,0 +1,81 @@
+/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Jaeger <aj@suse.de>, 1999 and
+		  Jakub Jelinek <jakub@redhat.com>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+
+int process_elf32_file (const char *file_name, const char *lib, int *flag,
+			char **soname, void *file_contents,
+			size_t file_length);
+int process_elf64_file (const char *file_name, const char *lib, int *flag,
+			char **soname, void *file_contents,
+			size_t file_length);
+
+/* Returns 0 if everything is ok, != 0 in case of error.  */
+int
+process_elf_file (const char *file_name, const char *lib, int *flag,
+		  char **soname, void *file_contents, size_t file_length)
+{
+  ElfW(Ehdr) *elf_header = (ElfW(Ehdr) *) file_contents;
+  int ret;
+
+  if (elf_header->e_ident [EI_CLASS] == ELFCLASS32)
+    return process_elf32_file (file_name, lib, flag, soname, file_contents,
+			       file_length);
+  else
+    {
+      switch (elf_header->e_machine)
+	{
+	case EM_IA_64:
+	case EM_X8664:
+	  break;
+	default:
+	  error (0, 0, _("%s is for unknown machine %d.\n"),
+		 file_name, elf_header->e_machine);
+	  return 1;
+	}
+
+      ret = process_elf64_file (file_name, lib, flag, soname, file_contents,
+				file_length);
+      /* IA64/X86-64 64bit libraries are always libc.so.6+.  */
+      if (!ret)
+	switch (elf_header->e_machine)
+	  {
+	  case EM_IA_64:
+	    *flag = FLAG_IA64_LIB64|FLAG_ELF_LIBC6;
+	    break;
+	  case EM_X8664:
+	    *flag = FLAG_X8664_LIB64|FLAG_ELF_LIBC6;
+	    break;
+	  }
+
+      return ret;
+    }
+}
+
+#undef __ELF_NATIVE_CLASS
+#undef process_elf_file
+#define process_elf_file process_elf32_file
+#define __ELF_NATIVE_CLASS 32
+#include "sysdeps/generic/readelflib.c"
+
+#undef __ELF_NATIVE_CLASS
+#undef process_elf_file
+#define process_elf_file process_elf64_file
+#define __ELF_NATIVE_CLASS 64
+#include "sysdeps/generic/readelflib.c"
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-11-15 06:40:11 +0000