Update.

1999-10-29  Andreas Jaeger  <aj@suse.de>

	* math/gen-libm-test.pl: New file to generate a table of
	libm-test-ulps values.

1999-10-29  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h: Expect
	struct sigcontext* object as second parameter for profil_counter.
	Patches by Jakub Jelinek <jakub@redhat.com>.

1999-10-29  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/fpathconf.c (__fpathconf): Handle reiserfs.
	* sysdeps/unix/sysv/linux/pathconf.c: Likewise.

	* sysdeps/unix/sysv/linux/linux_fsinfo.h: Add values for devpts,
	efs, qnx4 and reiser file systems.

1999-10-29  Andreas Jaeger  <aj@suse.de>

	* locale/Makefile (others): Set to localedef and locale for make
	clean.

	* debug/Makefile (generated): Add xtrace for make clean to work.

1999-10-29  Andreas Jaeger  <aj@suse.de>

	* stdlib/tst-strtod.c: Add two testcases for hexadecimal input.

1999-10-25  Andreas Jaeger  <aj@suse.de>

	* math/libm-test.inc: Added code to ignore the given max ulps.
	(print_max_error): Check for ignore_max_ulp.
	(check_float_internal): Likewise.
	(parse_opt): Parse --ignore-max-ulp.
	(main): Initialize ignore_max_ulp.

ChangeLog

@@ -1,3 +1,42 @@
+1999-10-29  Andreas Jaeger  <aj@suse.de>
+
+	* math/gen-libm-test.pl: New file to generate a table of
+	libm-test-ulps values.
+
+1999-10-29  Ulrich Drepper  <drepper@cygnus.com>
+
+	* sysdeps/unix/sysv/linux/sparc/sys/ptrace.h: New file.
+	* sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h: Expect
+	struct sigcontext* object as second parameter for profil_counter.
+	Patches by Jakub Jelinek <jakub@redhat.com>.
+
+1999-10-29  Andreas Jaeger  <aj@suse.de>
+
+	* sysdeps/unix/sysv/linux/fpathconf.c (__fpathconf): Handle reiserfs.
+	* sysdeps/unix/sysv/linux/pathconf.c: Likewise.
+
+	* sysdeps/unix/sysv/linux/linux_fsinfo.h: Add values for devpts,
+	efs, qnx4 and reiser file systems.
+
+1999-10-29  Andreas Jaeger  <aj@suse.de>
+
+	* locale/Makefile (others): Set to localedef and locale for make
+	clean.
+
+	* debug/Makefile (generated): Add xtrace for make clean to work.
+
+1999-10-29  Andreas Jaeger  <aj@suse.de>
+
+	* stdlib/tst-strtod.c: Add two testcases for hexadecimal input.
+
+1999-10-25  Andreas Jaeger  <aj@suse.de>
+
+	* math/libm-test.inc: Added code to ignore the given max ulps.
+	(print_max_error): Check for ignore_max_ulp.
+	(check_float_internal): Likewise.
+	(parse_opt): Parse --ignore-max-ulp.
+	(main): Initialize ignore_max_ulp.
+
 1999-10-26  Andreas Jaeger  <aj@suse.de>
 
 	* stdlib/msort.c: Include <alloca.h> for prototype.

debug/Makefile

@@ -50,7 +50,7 @@ ifeq ($(build-shared),yes)
 install-bin += catchsegv
 endif
 endif
-generated = catchsegv
+generated = catchsegv xtrace
 
 include ../Rules
 

locale/Makefile

@@ -41,6 +41,7 @@ categories	= ctype messages monetary numeric time paper name \
 		  address telephone measurement identification collate
 aux		= $(categories:%=lc-%) $(categories:%=C-%) SYS_libc C_name
 # XXX For testing this is now others-static instead of others.
+others		= localedef locale
 others-static		= localedef locale
 install-bin	= localedef locale
 extra-objs	= $(localedef-modules:=.o) $(locale-modules:=.o) \

math/libm-err-tab.pl

@@ -0,0 +1,207 @@
+#!/usr/bin/perl -w
+
+# Copyright (C) 1999 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+# Contributed by Andreas Jaeger <aj@suse.de>, 1999.
+
+# 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.
+
+# Information about tests are stored in: %results
+# $results{$test}{"type"} is the result type, e.g. normal or complex.
+# In the following description $platform, $type and $float are:
+# - $platform is the used platform
+# - $type is either "normal", "real" (for the real part of a complex number)
+#   or "imag" (for the imaginary part # of a complex number).
+# - $float is either of float, ifloat, double, idouble, ldouble, ildouble;
+#   It represents the underlying floating point type (float, double or long
+#   double) and if inline functions (the leading i stands for inline)
+#   are used.
+# $results{$test}{$platform}{$type}{$float} is defined and has a delta
+# or 'fail' as value.
+
+use File::Find;
+
+use strict;
+
+use vars qw ($sources @platforms %pplatforms);
+use vars qw (%results @all_floats %suffices @all_functions);
+
+
+# all_floats is in output order and contains all recognised float types that
+# we're going to output
+@all_floats = ('float', 'double', 'ldouble');
+%suffices =
+  ( 'float' => 'f',
+    'double' => '',
+    'ldouble' => 'l'
+  );
+
+# Pretty description of platform
+%pplatforms =
+  ( "i386/fpu" => "ix86",
+    "generic" => "Generic",
+    "alpha" => "Alpha"
+  );
+
+@all_functions = 
+  ( "acos", "acosh", "asin", "asinh", "atan", "atanh",
+    "atan2", "cabs", "cacos", "cacosh", "carg", "casin", "casinh",
+    "catan", "catanh", "cbrt", "ccos", "ccosh", "ceil", "cexp", "cimag",
+    "clog", "clog10", "conj", "copysign", "cos", "cosh", "cpow", "cproj",
+    "creal", "csin", "csinh", "csqrt", "ctan", "ctanh", "erf", "erfc",
+    "exp", "exp10", "exp2", "expm1", "fabs", "fdim", "floor", "fma",
+    "fmax", "fmin", "fmod", "frexp", "gamma", "hypot",
+    "ilogb", "j0", "j1", "jn", "lgamma", "lrint",
+    "llrint", "log", "log10", "log1p", "log2", "logb", "lround",
+    "llround", "modf", "nearbyint", "nextafter", "nexttoward", "pow",
+    "remainder", "remquo", "rint", "round", "scalb", "scalbn", "scalbln",
+    "sin", "sincos", "sinh", "sqrt", "tan", "tanh", "tgamma",
+    "trunc", "y0", "y1", "yn" );
+# "fpclassify", "isfinite", "isnormal", "signbit" are not tabulated
+
+if ($#ARGV == 0) {
+  $sources = $ARGV[0];
+} else {
+  $sources = '/usr/src/cvs/libc';
+}
+
+find (\&find_files, $sources);
+
+&print_all;
+
+sub find_files {
+  if ($_ eq 'libm-test-ulps') {
+    # print "Parsing $File::Find::name\n";
+    push @platforms, $File::Find::dir;
+    &parse_ulps ($File::Find::name, $File::Find::dir);
+  }
+}
+
+# Parse ulps file
+sub parse_ulps {
+  my ($file, $platform) = @_;
+  my ($test, $type, $float, $eps, $kind);
+
+  # $type has the following values:
+  # "normal": No complex variable
+  # "real": Real part of complex result
+  # "imag": Imaginary part of complex result
+  open ULP, $file  or die ("Can't open $file: $!");
+  while (<ULP>) {
+    chop;
+    # ignore comments and empty lines
+    next if /^#/;
+    next if /^\s*$/;
+    if (/^Test/) {
+      $kind = 'test';
+      next;
+    }
+    if (/^Function: /) {
+      if (/\Real part of/) {
+	s/Real part of //;
+	$type = 'real';
+      } elsif (/Imaginary part of/) {
+	s/Imaginary part of //;
+	$type = 'imag';
+      } else {
+	$type = 'normal';
+      }
+      ($test) = ($_ =~ /^Function:\s*\"([a-zA-Z0-9_]+)\"/);
+      $kind = 'fct';
+      next;
+    }
+    # Only handle maximal errors of functions
+    next if ($kind eq 'test');
+    if (/^i?(float|double|ldouble):/) {
+      ($float, $eps) = split /\s*:\s*/,$_,2;
+      if ($eps eq 'fail') {
+	$results{$test}{$platform}{$type}{$float} = 'fail';
+      } elsif ($eps eq "0") {
+	# ignore
+	next;
+      } elsif (!exists $results{$test}{$platform}{$type}{$float} 
+	    || $results{$test}{$platform}{$type}{$float} ne 'fail') {
+	$results{$test}{$platform}{$type}{$float} = $eps;
+      }
+      if ($type =~ /^real|imag$/) {
+	$results{$test}{'type'} = 'complex';
+      } elsif ($type eq 'normal') {
+	$results{$test}{'type'} = 'normal';
+      }
+      next;
+    }
+    print "Skipping unknown entry: `$_'\n";
+  }
+  close ULP;
+}
+
+sub get_value {
+  my ($fct, $platform, $type, $float) = @_;
+
+  return (exists $results{$fct}{$platform}{$type}{$float} 
+	  ? $results{$fct}{$platform}{$type}{$float} : "0");
+}
+
+sub canonicalize_platform {
+  my ($platform) = @_;
+
+  $platform =~ s|^(.*/sysdeps/)||;
+
+
+  return exists $pplatforms{$platform} ? $pplatforms{$platform} : $platform;
+}
+
+sub print_all {
+  my ($fct, $platform, $float, $first, $i);
+
+  print '@multitable {nexttowardf} ';
+  foreach (@platforms) {
+    print ' {1000 + i 1000}';
+  }
+  print "\n";
+
+  print '@item Function ';
+  foreach (@platforms) {
+    print ' @tab ';
+    print &canonicalize_platform ($_);
+  }
+  print "\n";
+
+  
+  foreach $fct (@all_functions) {
+    foreach $float (@all_floats) {
+      print "\@item $fct$suffices{$float} ";
+      foreach $platform (@platforms) {
+	print ' @tab ';
+	if (exists $results{$fct}{$platform}{'normal'}{$float}
+	    || exists $results{$fct}{$platform}{'real'}{$float}
+	    || exists $results{$fct}{$platform}{'imag'}{$float}) {
+	  if ($results{$fct}{'type'} eq 'complex') {
+	    print &get_value ($fct, $platform, 'real', $float),
+	    ' + i ', &get_value ($fct, $platform, 'imag', $float);
+	  } else {
+	    print $results{$fct}{$platform}{'normal'}{$float};
+	  }
+	} else {
+	  print '-';
+	}
+      }
+      print "\n";
+    }
+  }
+
+  print "\@end multitable\n";
+}

math/libm-test.inc

@@ -158,6 +158,7 @@ static int noXPasses;	/* number of unexpected passes.  */
 static int verbose;
 static int output_max_error;	/* Should the maximal errors printed?  */
 static int output_points;	/* Should the single function results printed?  */
+static int ignore_max_ulp;	/* Should we ignore max_ulp?  */
 
 static FLOAT minus_zero, plus_zero;
 static FLOAT plus_infty, minus_infty, nan_value;
@@ -315,7 +316,7 @@ print_max_error (const char *func_name, FLOAT allowed, int xfail)
 {
   int ok = 0;
 
-  if (max_error <= allowed)
+  if (max_error == 0.0 || (max_error <= allowed && !ignore_max_ulp))
     {
       ok = 1;
     }
@@ -477,7 +478,7 @@ check_float_internal (const char *test_name, FLOAT computed, FLOAT expected,
 	  && (computed == 0.0 && expected == 0.0
 	      && signbit(computed) != signbit (expected)))
 	ok = 0;
-      else if (ulp <= max_ulp)
+      else if (ulp == 0.0 || (ulp <= max_ulp && !ignore_max_ulp))
 	ok = 1;
       else
 	{
@@ -3875,6 +3876,8 @@ static const struct argp_option options[] =
     "Don't output maximal errors of functions"},
   { "no-points", 'p', NULL, 0,
     "Don't output results of functions invocations"},
+  { "ignore-max-ulp", 'i', "yes/no", 0,
+    "Ignore given maximal errors"},
   { NULL, 0, NULL, 0, NULL }
 };
 
@@ -3900,6 +3903,12 @@ parse_opt (int key, char *arg, struct argp_state *state)
     case 'f':
       output_max_error = 0;
       break;
+    case 'i':
+      if (strcmp (arg, "yes") == 0)
+	ignore_max_ulp = 1;
+      else if (strcmp (arg, "no") == 0)
+	ignore_max_ulp = 0;
+      break;
     case 'p':
       output_points = 0;
       break;
@@ -3954,6 +3963,8 @@ main (int argc, char **argv)
   output_ulps = 0;
   output_max_error = 1;
   output_points = 1;
+  /* XXX set to 0 for releases.  */
+  ignore_max_ulp = 0;
   
   /* Parse and process arguments.  */
   argp_parse (&argp, argc, argv, 0, &remaining, NULL);

stdlib/tst-strtod.c

@@ -39,6 +39,8 @@ static const struct ltest tests[] =
     { "0e-19", 0, '\0', 0 },
     { "4\00012", 4.0, '\0', 0 },
     { "5.9e-76", 5.9e-76, '\0', 0 },
+    { "0x1.4p+3", 10.0, '\0', 0 },
+    { "0x0A", 10.0, '\0', 0 },
     { NULL, 0, '\0', 0 }
   };
 

sysdeps/unix/sysv/linux/fpathconf.c

@@ -1,5 +1,5 @@
 /* Linux specific extensions to fpathconf.
-   Copyright (C) 1991, 1995, 1996, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1998, 1999  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
@@ -68,6 +68,9 @@ __fpathconf (fd, name)
 	case UFS_CIGAM:
 	  return UFS_LINK_MAX;
 
+	case REISERFS_SUPER_MAGIC:
+	  return REISERFS_LINK_MAX;
+
 	default:
 	  return LINK_MAX;
 	}

sysdeps/unix/sysv/linux/linux_fsinfo.h

@@ -1,5 +1,5 @@
 /* Constants from kernel header for various FSes.
-   Copyright (C) 1998 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999 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
@@ -27,6 +27,8 @@
 #define ADFS_SUPER_MAGIC	0xadf5
 #define AFFS_SUPER_MAGIC	0xadff
 #define CODA_SUPER_MAGIC	0x73757245
+#define DEVPTS_SUPER_MAGIC	0x1cd1
+#define EFS_SUPER_MAGIC		0x414A53
 #define EXT2_SUPER_MAGIC	0xef53
 #define HPFS_SUPER_MAGIC	0xf995e849
 #define ISOFS_SUPER_MAGIC	0x9660
@@ -38,6 +40,8 @@
 #define NCP_SUPER_MAGIC		0x564c
 #define NFS_SUPER_MAGIC		0x6969
 #define PROC_SUPER_MAGIC	0x9fa0
+#define QNX4_SUPER_MAGIC	0x002f
+#define REISERFS_SUPER_MAGIC	0x52654973
 #define SMB_SUPER_MAGIC		0x517b
 #define XENIX_SUPER_MAGIC	0x012ff7b4
 #define SYSV4_SUPER_MAGIC	0x012ff7b5
@@ -51,6 +55,7 @@
 #define MINIX_LINK_MAX		250
 #define MINIX2_LINK_MAX		65530
 #define XENIX_LINK_MAX		126     /* ?? */
+#define REISERFS_LINK_MAX	64535
 #define SYSV_LINK_MAX		126     /* 127? 251? */
 #define COH_LINK_MAX		10000
 #define UFS_LINK_MAX		EXT2_LINK_MAX

sysdeps/unix/sysv/linux/pathconf.c

@@ -1,5 +1,5 @@
 /* Linux specific extensions to pathconf.
-   Copyright (C) 1991, 1995, 1996, 1998 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1995, 1996, 1998, 1999 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
@@ -68,6 +68,9 @@ __pathconf (path, name)
 	case UFS_CIGAM:
 	  return UFS_LINK_MAX;
 
+	case REISERFS_SUPER_MAGIC:
+	  return REISERFS_LINK_MAX;
+
 	default:
 	  return LINK_MAX;
 	}

sysdeps/unix/sysv/linux/sparc/sparc64/profil-counter.h

@@ -20,7 +20,7 @@
 #include <signal.h>
 
 void
-profil_counter (int signo, __siginfo_t *si)
+profil_counter (int signo, struct sigcontext *si)
 {
-  profil_count ((void *) si->si_regs.tpc);
+  profil_count ((void *) si->sigc_regs.tpc);
 }

sysdeps/unix/sysv/linux/sparc/sys/ptrace.h

@@ -0,0 +1,179 @@
+/* `ptrace' debugger support interface.  Linux/SPARC version.
+   Copyright (C) 1996, 1997, 1998, 1999 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 _SYS_PTRACE_H
+#define _SYS_PTRACE_H	1
+
+#include <features.h>
+
+#include <bits/wordsize.h>
+
+/* Linux/SPARC kernels up to 2.3.18 do not care much
+   about what namespace polution, so use a kludge now.  */
+#undef PTRACE_GETREGS
+#undef PTRACE_SETREGS
+#undef PTRACE_GETFPREGS
+#undef PTRACE_SETFPREGS
+#undef PTRACE_READDATA
+#undef PTRACE_WRITEDATA
+#undef PTRACE_READTEXT
+#undef PTRACE_WRITETEXT
+#undef PTRACE_SUNDETACH
+
+__BEGIN_DECLS
+
+/* Type of the REQUEST argument to `ptrace.'  */
+enum __ptrace_request
+{
+  /* Indicate that the process making this request should be traced.
+     All signals received by this process can be intercepted by its
+     parent, and its parent can use the other `ptrace' requests.  */
+  PTRACE_TRACEME = 0,
+#define PT_TRACE_ME PTRACE_TRACEME
+
+  /* Return the word in the process's text space at address ADDR.  */
+  PTRACE_PEEKTEXT = 1,
+#define PT_READ_I PTRACE_PEEKTEXT
+
+  /* Return the word in the process's data space at address ADDR.  */
+  PTRACE_PEEKDATA = 2,
+#define PT_READ_D PTRACE_PEEKDATA
+
+  /* Return the word in the process's user area at offset ADDR.  */
+  PTRACE_PEEKUSER = 3,
+#define PT_READ_U PTRACE_PEEKUSER
+
+  /* Write the word DATA into the process's text space at address ADDR.  */
+  PTRACE_POKETEXT = 4,
+#define PT_WRITE_I PTRACE_POKETEXT
+
+  /* Write the word DATA into the process's data space at address ADDR.  */
+  PTRACE_POKEDATA = 5,
+#define PT_WRITE_D PTRACE_POKEDATA
+
+  /* Write the word DATA into the process's user area at offset ADDR.  */
+  PTRACE_POKEUSER = 6,
+#define PT_WRITE_U PTRACE_POKEUSER
+
+  /* Continue the process.  */
+  PTRACE_CONT = 7,
+#define PT_CONTINUE PTRACE_CONT
+
+  /* Kill the process.  */
+  PTRACE_KILL = 8,
+#define PT_KILL PTRACE_KILL
+
+  /* Single step the process.
+     This is not supported on all machines.  */
+  PTRACE_SINGLESTEP = 9,
+#define PT_STEP PTRACE_SINGLESTEP
+
+  /* Detach from a process attached to with PTRACE_ATTACH.  */
+  PTRACE_DETACH = 11,
+#define PT_DETACH PTRACE_DETACH
+
+  /* This define is needed for older programs which were
+     trying to work around sparc-linux ptrace nastiness.  */
+#define PTRACE_SUNDETACH PTRACE_DETACH
+
+#if __WORDSIZE == 32
+
+  /* Get all general purpose registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_GETREGS = 12,
+#define PT_GETREGS PTRACE_GETREGS
+
+  /* Set all general purpose registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_SETREGS = 13,
+#define PT_SETREGS PTRACE_SETREGS
+
+  /* Get all floating point registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_GETFPREGS = 14,
+#define PT_GETFPREGS PTRACE_GETFPREGS
+
+  /* Set all floating point registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_SETFPREGS = 15,
+#define PT_SETFPREGS PTRACE_SETFPREGS
+
+#endif
+
+  /* Attach to a process that is already running. */
+  PTRACE_ATTACH = 16,
+#define PT_ATTACH PTRACE_ATTACH
+
+  /* Read several bytes at a time. */
+  PTRACE_READTEXT = 18,
+ #define PTRACE_READTEXT PTRACE_READTEXT
+ #define PTRACE_READDATA PTRACE_READTEXT
+
+  /* Write several bytes at a time. */
+  PTRACE_WRITETEXT = 19,
+ #define PTRACE_WRITETEXT PTRACE_WRITETEXT
+ #define PTRACE_WRITEDATA PTRACE_WRITETEXT
+
+#if __WORDSIZE == 64
+
+  /* Get all general purpose registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_GETREGS = 22,
+#define PT_GETREGS PTRACE_GETREGS
+
+  /* Set all general purpose registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_SETREGS = 23,
+#define PT_SETREGS PTRACE_SETREGS
+
+#endif
+
+  /* Continue and stop at the next (return from) syscall.  */
+  PTRACE_SYSCALL = 24
+#define PTRACE_SYSCALL PTRACE_SYSCALL
+
+#if __WORDSIZE == 64
+
+  /* Get all floating point registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_GETFPREGS = 25,
+#define PT_GETFPREGS PTRACE_GETFPREGS
+
+  /* Set all floating point registers used by a processes.
+     This is not supported on all machines.  */
+   PTRACE_SETFPREGS = 26,
+#define PT_SETFPREGS PTRACE_SETFPREGS
+
+#endif
+};
+
+/* Perform process tracing functions.  REQUEST is one of the values
+   above, and determines the action to be taken.
+   For all requests except PTRACE_TRACEME, PID specifies the process to be
+   traced.
+
+   PID and the other arguments described above for the various requests should
+   appear (those that are used for the particular request) as:
+     pid_t PID, void *ADDR, int DATA, void *ADDR2
+   after REQUEST.  */
+extern long int ptrace __P ((enum __ptrace_request __request, ...));
+
+__END_DECLS
+
+#endif /* _SYS_PTRACE_H */