Merge commit 'origin/master' into fedora/master

Conflicts:
	ChangeLog
	sysdeps/unix/sysv/linux/i386/sysconf.c
	sysdeps/x86_64/cacheinfo.c
	version.h

4 files changed, 126 insertions, 2 deletions

diff --git a/sysdeps/i386/____longjmp_chk.S b/sysdeps/i386/____longjmp_chk.S
new file mode 100644
index 0000000000..6cd74968a2
--- /dev/null
+++ b/sysdeps/i386/____longjmp_chk.S
@@ -0,0 +1,45 @@
+/* Copyright (C) 2001,2004,2005,2006,2009 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+	.section .rodata.str1.1,"aMS",@progbits,1
+	.type	longjmp_msg,@object
+longjmp_msg:
+	.string "longjmp causes uninitialized stack frame"
+	.size	longjmp_msg, .-longjmp_msg
+
+
+#define __longjmp ____longjmp_chk
+
+#ifdef PIC
+# define CALL_FAIL	movl	%ebx, %ecx;				      \
+			cfi_register(%ebx,%ecx);			      \
+			LOAD_PIC_REG (bx);				      \
+			leal	longjmp_msg@GOTOFF(%ebx), %eax;		      \
+			call	__GI___fortify_fail@PLT
+#else
+# define CALL_FAIL	movl	$longjmp_msg, %eax;			      \
+			call	__fortify_fail
+#endif
+
+#define CHECK_ESP(reg) \
+	cmpl	reg, %esp;						      \
+	jbe	.Lok;							      \
+	CALL_FAIL;							      \
+.Lok:
+
+#include "__longjmp.S"
diff --git a/sysdeps/i386/__longjmp.S b/sysdeps/i386/__longjmp.S
index 559d56b250..8b0732056a 100644
--- a/sysdeps/i386/__longjmp.S
+++ b/sysdeps/i386/__longjmp.S
@@ -1,5 +1,6 @@
 /* longjmp for i386.
-   Copyright (C) 1995-1998,2000,2002,2005, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1995-1998,2000,2002,2005,2006,2009
+   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 +28,7 @@
 #define JBUF	PARMS
 #define VAL	JBUF+PTR_SIZE
 
+	.text
 ENTRY (BP_SYM (__longjmp))
 	ENTER
 
@@ -40,6 +42,9 @@ ENTRY (BP_SYM (__longjmp))
 	movl (JB_SP*4)(%eax), %ecx
 	PTR_DEMANGLE (%edx)
 	PTR_DEMANGLE (%ecx)
+# ifdef CHECK_ESP
+	CHECK_ESP (%ecx)
+# endif
 	cfi_def_cfa(%eax, 0)
 	cfi_register(%eip, %edx)
 	cfi_register(%esp, %ecx)
@@ -63,6 +68,11 @@ ENTRY (BP_SYM (__longjmp))
 	movl JBUF(%esp), %ecx	/* User's jmp_buf in %ecx.  */
 	CHECK_BOUNDS_BOTH_WIDE (%ecx, JBUF(%esp), $JB_SIZE)
 
+# ifdef CHECK_ESP
+	movl (JB_SP*4)(%ecx), %eax
+	CHECK_ESP (%eax)
+# endif
+
 	movl VAL(%esp), %eax	/* Second argument is return value.  */
 	/* Save the return address now.  */
 	movl (JB_PC*4)(%ecx), %edx
diff --git a/sysdeps/i386/dl-irel.h b/sysdeps/i386/dl-irel.h
new file mode 100644
index 0000000000..810a35050b
--- /dev/null
+++ b/sysdeps/i386/dl-irel.h
@@ -0,0 +1,45 @@
+/* Machine-dependent ELF indirect relocation inline functions.
+   i386 version.
+   Copyright (C) 2009 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#ifndef _DL_IREL_H
+#define _DL_IREL_H
+
+#include <stdio.h>
+#include <unistd.h>
+
+#define ELF_MACHINE_IREL	1
+
+static inline void
+__attribute ((always_inline))
+elf_irel (const Elf32_Rel *reloc)
+{
+  Elf32_Addr *const reloc_addr = (void *) reloc->r_offset;
+  const unsigned long int r_type = ELF32_R_TYPE (reloc->r_info);
+
+  if (__builtin_expect (r_type == R_386_IRELATIVE, 1))
+    {
+      Elf64_Addr value = ((Elf32_Addr (*) (void)) (*reloc_addr)) ();
+      *reloc_addr = value;
+    }
+  else
+    __libc_fatal ("unexpected reloc type in static binary");
+}
+
+#endif /* dl-irel.h */
diff --git a/sysdeps/i386/dl-machine.h b/sysdeps/i386/dl-machine.h
index 0e15878d4e..a093d2b151 100644
--- a/sysdeps/i386/dl-machine.h
+++ b/sysdeps/i386/dl-machine.h
@@ -346,7 +346,8 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
 
       if (sym != NULL
 	  && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC,
-			       0))
+			       0)
+	  && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1))
 	value = ((Elf32_Addr (*) (void)) value) ();
 
       switch (r_type)
@@ -471,6 +472,11 @@ elf_machine_rel (struct link_map *map, const Elf32_Rel *reloc,
 	  memcpy (reloc_addr_arg, (void *) value,
 		  MIN (sym->st_size, refsym->st_size));
 	  break;
+	case R_386_IRELATIVE:
+	  value = map->l_addr + *reloc_addr;
+	  value = ((Elf32_Addr (*) (void)) value) ();
+	  *reloc_addr = value;
+	  break;
 	default:
 	  _dl_reloc_bad_type (map, r_type, 0);
 	  break;
@@ -500,6 +506,7 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
       Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
 
       if (sym != NULL
+	  && __builtin_expect (sym->st_shndx != SHN_UNDEF, 1)
 	  && __builtin_expect (ELFW(ST_TYPE) (sym->st_info) == STT_GNU_IFUNC,
 			       0))
 	value = ((Elf32_Addr (*) (void)) value) ();
@@ -609,6 +616,11 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 		  MIN (sym->st_size, refsym->st_size));
 	  break;
 #  endif /* !RESOLVE_CONFLICT_FIND_MAP */
+	case R_386_IRELATIVE:
+	  value = map->l_addr + reloc->r_addend;
+	  value = ((Elf32_Addr (*) (void)) value) ();
+	  *reloc_addr = value;
+	  break;
 	default:
 	  /* We add these checks in the version to relocate ld.so only
 	     if we are still debugging.  */
@@ -703,6 +715,12 @@ elf_machine_lazy_rel (struct link_map *map,
 # endif
 	}
     }
+  else if (__builtin_expect (r_type == R_386_IRELATIVE, 0))
+    {
+      Elf32_Addr value = map->l_addr + *reloc_addr;
+      value = ((Elf32_Addr (*) (void)) value) ();
+      *reloc_addr = value;
+    }
   else
     _dl_reloc_bad_type (map, r_type, 1);
 }
@@ -726,6 +744,12 @@ elf_machine_lazy_rela (struct link_map *map,
       td->arg = (void*)reloc;
       td->entry = _dl_tlsdesc_resolve_rela;
     }
+  else if (__builtin_expect (r_type == R_386_IRELATIVE, 0))
+    {
+      Elf32_Addr value = map->l_addr + reloc->r_addend;
+      value = ((Elf32_Addr (*) (void)) value) ();
+      *reloc_addr = value;
+    }
   else
     _dl_reloc_bad_type (map, r_type, 1);
 }