Remove pre-2.2 Linux kernel support.

3 files changed, 33 insertions, 150 deletions

diff --git a/sysdeps/unix/sysv/linux/i386/chown.c b/sysdeps/unix/sysv/linux/i386/chown.c
index b87605f602..c8e53e4e00 100644
--- a/sysdeps/unix/sysv/linux/i386/chown.c
+++ b/sysdeps/unix/sysv/linux/i386/chown.c
@@ -1,5 +1,4 @@
-/* Copyright (C) 1998,1999,2000,2002,2003,2004,2006
-	Free Software Foundation, Inc.
+/* Copyright (C) 1998-2012 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
@@ -42,64 +41,22 @@ extern int __chown_is_lchown (const char *__file, uid_t __owner,
 extern int __real_chown (const char *__file, uid_t __owner, gid_t __group);
 
 
-#if defined __NR_lchown || __ASSUME_LCHOWN_SYSCALL > 0
-/* Running under Linux > 2.1.80.  */
-
-# ifdef __NR_chown32
+#ifdef __NR_chown32
 #  if __ASSUME_32BITUIDS == 0
 /* This variable is shared with all files that need to check for 32bit
    uids.  */
 extern int __libc_missing_32bit_uids;
-#  endif
-# endif /* __NR_chown32 */
+# endif
+#endif /* __NR_chown32 */
 
 int
 __real_chown (const char *file, uid_t owner, gid_t group)
 {
-# if __ASSUME_LCHOWN_SYSCALL == 0
-  static int __libc_old_chown;
-  int result;
-
-  if (!__libc_old_chown)
-    {
-      int saved_errno = errno;
-#  ifdef __NR_chown32
-      if (__libc_missing_32bit_uids <= 0)
-	{
-	  int result;
-	  int saved_errno = errno;
-
-	  result = INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-	  if (result == 0 || errno != ENOSYS)
-	    return result;
-
-	  __set_errno (saved_errno);
-	  __libc_missing_32bit_uids = 1;
-	}
-#  endif /* __NR_chown32 */
-      if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
-	  || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
-	{
-	  __set_errno (EINVAL);
-	  return -1;
-	}
-
-      result = INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-
-      if (result >= 0 || errno != ENOSYS)
-	return result;
-
-      __set_errno (saved_errno);
-      __libc_old_chown = 1;
-    }
-
-  return __lchown (file, owner, group);
-# elif __ASSUME_32BITUIDS
-  /* This implies __ASSUME_LCHOWN_SYSCALL.  */
+#if __ASSUME_32BITUIDS
   return INLINE_SYSCALL (chown32, 3, CHECK_STRING (file), owner, group);
-# else
-  /* !__ASSUME_32BITUIDS && ASSUME_LCHOWN_SYSCALL  */
-#  ifdef __NR_chown32
+#else
+  /* !__ASSUME_32BITUIDS */
+# ifdef __NR_chown32
   if (__libc_missing_32bit_uids <= 0)
     {
       int result;
@@ -112,7 +69,7 @@ __real_chown (const char *file, uid_t owner, gid_t group)
       __set_errno (saved_errno);
       __libc_missing_32bit_uids = 1;
     }
-#  endif /* __NR_chown32 */
+# endif /* __NR_chown32 */
   if (((owner + 1) > (uid_t) ((__kernel_uid_t) -1U))
       || ((group + 1) > (gid_t) ((__kernel_gid_t) -1U)))
     {
@@ -121,19 +78,11 @@ __real_chown (const char *file, uid_t owner, gid_t group)
     }
 
   return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-# endif
-}
 #endif
+}
 
 
-#if !defined __NR_lchown && __ASSUME_LCHOWN_SYSCALL == 0
-/* Compiling under older kernels.  */
-int
-__chown_is_lchown (const char *file, uid_t owner, gid_t group)
-{
-  return INLINE_SYSCALL (chown, 3, CHECK_STRING (file), owner, group);
-}
-#elif SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)
 /* Compiling for compatibiity.  */
 int
 attribute_compat_text_section
@@ -147,12 +96,6 @@ __chown_is_lchown (const char *file, uid_t owner, gid_t group)
 compat_symbol (libc, __chown_is_lchown, chown, GLIBC_2_0);
 #endif
 
-#ifdef __NR_lchown
 versioned_symbol (libc, __real_chown, chown, GLIBC_2_1);
 strong_alias (__real_chown, __chown)
-#else
-strong_alias (__chown_is_lchown, __chown_is_lchown21)
-versioned_symbol (libc, __chown_is_lchown21, chown, GLIBC_2_1);
-strong_alias (__chown_is_lchown, __chown)
-#endif
 libc_hidden_def (__chown)
diff --git a/sysdeps/unix/sysv/linux/i386/fchownat.c b/sysdeps/unix/sysv/linux/i386/fchownat.c
index 573a9b33c8..6b748d16ba 100644
--- a/sysdeps/unix/sysv/linux/i386/fchownat.c
+++ b/sysdeps/unix/sysv/linux/i386/fchownat.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2005-2012 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
@@ -84,7 +84,6 @@ fchownat (int fd, const char *file, uid_t owner, gid_t group, int flag)
     }
 
 # if __ASSUME_32BITUIDS > 0
-  /* This implies __ASSUME_LCHOWN_SYSCALL.  */
   INTERNAL_SYSCALL_DECL (err);
 
   if (flag & AT_SYMLINK_NOFOLLOW)
diff --git a/sysdeps/unix/sysv/linux/i386/sigaction.c b/sysdeps/unix/sysv/linux/i386/sigaction.c
index 6424c7c24b..df5c235e5a 100644
--- a/sysdeps/unix/sysv/linux/i386/sigaction.c
+++ b/sysdeps/unix/sysv/linux/i386/sigaction.c
@@ -1,5 +1,5 @@
 /* POSIX.1 `sigaction' call for Linux/i386.
-   Copyright (C) 1991,1995-2000,2002-2005,2006 Free Software Foundation, Inc.
+   Copyright (C) 1991-2012 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
@@ -37,12 +37,6 @@
 #define SA_RESTORER 0x04000000
 
 
-#if __ASSUME_REALTIME_SIGNALS == 0
-/* The variable is shared between all wrappers around signal handling
-   functions which have RT equivalents.  */
-int __libc_missing_rt_sigs;
-#endif
-
 /* Using the hidden attribute here does not change the code but it
    helps to avoid warnings.  */
 #ifdef __NR_rt_sigaction
@@ -56,92 +50,39 @@ extern void restore (void) asm ("__restore") attribute_hidden;
 int
 __libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
 {
-#if __ASSUME_REALTIME_SIGNALS == 0
-  struct old_kernel_sigaction k_newact, k_oldact;
-#endif
   int result;
 
-#ifdef __NR_rt_sigaction
+  struct kernel_sigaction kact, koact;
 
-  /* First try the RT signals.  */
-# if __ASSUME_REALTIME_SIGNALS == 0
-  if (!__libc_missing_rt_sigs)
-# endif
+  if (act)
     {
-      struct kernel_sigaction kact, koact;
-# if __ASSUME_REALTIME_SIGNALS == 0
-      int saved_errno = errno;
-# endif
+      kact.k_sa_handler = act->sa_handler;
+      kact.sa_flags = act->sa_flags;
+      memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
 
-      if (act)
+      if (GLRO(dl_sysinfo_dso) == NULL)
 	{
-	  kact.k_sa_handler = act->sa_handler;
-	  kact.sa_flags = act->sa_flags;
-	  memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
+	  kact.sa_flags |= SA_RESTORER;
 
-	  if (GLRO(dl_sysinfo_dso) == NULL)
-	    {
-	      kact.sa_flags |= SA_RESTORER;
-
-	      kact.sa_restorer = ((act->sa_flags & SA_SIGINFO)
-				  ? &restore_rt : &restore);
-	    }
-	}
-
-      /* XXX The size argument hopefully will have to be changed to the
-	 real size of the user-level sigset_t.  */
-      result = INLINE_SYSCALL (rt_sigaction, 4,
-			       sig, act ? __ptrvalue (&kact) : NULL,
-			       oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
-
-# if __ASSUME_REALTIME_SIGNALS == 0
-      if (result >= 0 || errno != ENOSYS)
-# endif
-	{
-	  if (oact && result >= 0)
-	    {
-	      oact->sa_handler = koact.k_sa_handler;
-	      memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
-	      oact->sa_flags = koact.sa_flags;
-	      oact->sa_restorer = koact.sa_restorer;
-	    }
-	  return result;
+	  kact.sa_restorer = ((act->sa_flags & SA_SIGINFO)
+			      ? &restore_rt : &restore);
 	}
-
-# if __ASSUME_REALTIME_SIGNALS == 0
-      __set_errno (saved_errno);
-      __libc_missing_rt_sigs = 1;
-# endif
-    }
-#endif
-
-#if __ASSUME_REALTIME_SIGNALS == 0
-  if (act)
-    {
-      k_newact.k_sa_handler = act->sa_handler;
-      k_newact.sa_mask = act->sa_mask.__val[0];
-      k_newact.sa_flags = act->sa_flags | SA_RESTORER;
-
-      k_newact.sa_restorer = &restore;
     }
 
-  result = INLINE_SYSCALL (sigaction, 3, sig,
-			   act ? __ptrvalue (&k_newact) : 0,
-			   oact ? __ptrvalue (&k_oldact) : 0);
-
-  if (result < 0)
-    return -1;
+  /* XXX The size argument hopefully will have to be changed to the
+     real size of the user-level sigset_t.  */
+  result = INLINE_SYSCALL (rt_sigaction, 4,
+			   sig, act ? __ptrvalue (&kact) : NULL,
+			   oact ? __ptrvalue (&koact) : NULL, _NSIG / 8);
 
-  if (oact)
+  if (oact && result >= 0)
     {
-      oact->sa_handler = k_oldact.k_sa_handler;
-      oact->sa_mask.__val[0] = k_oldact.sa_mask;
-      oact->sa_flags = k_oldact.sa_flags;
-      oact->sa_restorer = k_oldact.sa_restorer;
+      oact->sa_handler = koact.k_sa_handler;
+      memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
+      oact->sa_flags = koact.sa_flags;
+      oact->sa_restorer = koact.sa_restorer;
     }
-
-  return 0;
-#endif
+  return result;
 }
 libc_hidden_def (__libc_sigaction)