Update.

2003-09-24  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/ia64/dl-machine.h (RTLD_START): Remove setting of
	__libc_stack_end.  Patch by David Mosberger.

2003-09-24  Jakub Jelinek  <jakub@redhat.com>

	* elf/Versions (ld): Export __libc_stack_end@GLIBC_2.1 instead of
	__libc_stack_end@GLIBC_PRIVATE.

	* sysdeps/generic/dl-sysdep.c (DL_STACK_END): Define if not defined.
	(_dl_sysdep_start): Set __libc_stack_end here.
	* sysdeps/alpha/dl-machine.h (RTLD_START): Remove setting of
	__libc_stack_end.
	* sysdeps/arm/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/cris/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/i386/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/m68k/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/s390/s390-32/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/s390/s390-64/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/sh/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise.
	* sysdeps/ia64/dl-machine.h (DL_STACK_END): Define.
	* sysdeps/sparc/sparc32/dl-machine.h (DL_STACK_END): Define.
	(RTLD_START): Remove setting of __libc_stack_end.
	* sysdeps/sparc/sparc64/dl-machine.h (DL_STACK_END): Define.
	(RTLD_START): Remove setting of __libc_stack_end.

2003-09-24  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Add gnu_dev_ prefix to
	function definitions.  Adjust macro expansions accordingly.
	* sysdeps/unix/sysv/linux/Versions: Add gnu_dev_ prefix to major,
	minor, makedev name.
	* sysdeps/unix/sysv/linux/makedev.c: Likewise.

2003-09-24  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/sys/sysmacros.h (major, minor, makedev):
	Add __THROW.

ChangeLog

@@ -1,3 +1,44 @@
+2003-09-24  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/ia64/dl-machine.h (RTLD_START): Remove setting of
+	__libc_stack_end.  Patch by David Mosberger.
+
+2003-09-24  Jakub Jelinek  <jakub@redhat.com>
+
+	* elf/Versions (ld): Export __libc_stack_end@GLIBC_2.1 instead of
+	__libc_stack_end@GLIBC_PRIVATE.
+
+	* sysdeps/generic/dl-sysdep.c (DL_STACK_END): Define if not defined.
+	(_dl_sysdep_start): Set __libc_stack_end here.
+	* sysdeps/alpha/dl-machine.h (RTLD_START): Remove setting of
+	__libc_stack_end.
+	* sysdeps/arm/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/cris/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/i386/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/m68k/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/s390/s390-32/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/s390/s390-64/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/sh/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise.
+	* sysdeps/ia64/dl-machine.h (DL_STACK_END): Define.
+	* sysdeps/sparc/sparc32/dl-machine.h (DL_STACK_END): Define.
+	(RTLD_START): Remove setting of __libc_stack_end.
+	* sysdeps/sparc/sparc64/dl-machine.h (DL_STACK_END): Define.
+	(RTLD_START): Remove setting of __libc_stack_end.
+
+2003-09-24  Ulrich Drepper  <drepper@redhat.com>
+
+	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Add gnu_dev_ prefix to
+	function definitions.  Adjust macro expansions accordingly.
+	* sysdeps/unix/sysv/linux/Versions: Add gnu_dev_ prefix to major,
+	minor, makedev name.
+	* sysdeps/unix/sysv/linux/makedev.c: Likewise.
+
+2003-09-24  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/unix/sysv/linux/sys/sysmacros.h (major, minor, makedev):
+	Add __THROW.
+
 2003-09-24  Jakub Jelinek  <jakub@redhat.com>
 
 	* nscd/Makefile (others): Add nscd before including ../Rules.

elf/Versions

@@ -36,6 +36,8 @@ ld {
   GLIBC_2.1 {
     # functions used in other libraries
     _dl_mcount;
+    # historically used by Garbage Collectors
+    __libc_stack_end;
   }
   GLIBC_2.3 {
     # runtime interface to TLS
@@ -43,7 +45,7 @@ ld {
   }
   GLIBC_PRIVATE {
     # Those are in the dynamic linker, but used by libc.so.
-    __libc_enable_secure; __libc_stack_end;
+    __libc_enable_secure;
     _dl_argv; _dl_catch_error; _dl_check_map_versions;
     _dl_debug_printf; _dl_debug_state; _dl_dst_count;
     _dl_dst_substitute; _dl_init; _dl_lookup_symbol; _dl_lookup_symbol_skip;

sysdeps/alpha/dl-machine.h

@@ -319,8 +319,6 @@ _dl_start_user:							\n\
 	.prologue 0						\n\
 	/* Save the user entry point address in s0.  */		\n\
 	mov	$0, $9						\n\
-	/* Store the highest stack address.  */			\n\
-	stq	$30, __libc_stack_end				\n\
 	/* See if we were run as a command with the executable	\n\
 	   file name as an extra leading argument.  */		\n\
 	ldl	$1, _dl_skip_args($gp)	!gprel			\n\

sysdeps/arm/dl-machine.h

@@ -265,10 +265,6 @@ _dl_start_user:\n\
 	ldr	sl, .L_GET_GOT\n\
 	add	sl, pc, sl\n\
 .L_GOT_GOT:\n\
-	@ Store the highest stack address\n\
-	ldr	r1, .L_STACK_END\n\
-	ldr	r1, [sl, r1]\n\
-	str	sp, [r1]\n\
 	@ See if we were run as a command with the executable file\n\
 	@ name as an extra leading argument.\n\
 	ldr	r4, .L_SKIP_ARGS\n\
@@ -311,8 +307,6 @@ _dl_start_user:\n\
 	.word	_dl_starting_up(GOT)\n\
 .L_FINI_PROC:\n\
 	.word	_dl_fini(GOT)\n\
-.L_STACK_END:\n\
-	.word	__libc_stack_end(GOT)\n\
 .L_LOADED:\n\
 	.word	_rtld_local(GOT)\n\
 .previous\n\

sysdeps/cris/dl-machine.h

@@ -188,9 +188,6 @@ _dl_start_user:\n\
 	; Point R0 at the GOT.\n\
 	move.d	$pc,$r0\n\
 	sub.d	.:GOTOFF,$r0\n\
-	; Remember the highest stack address.\n\
-	move.d	[$r0+__libc_stack_end:GOT16],$r13\n\
-	move.d	$sp,[$r13]\n\
 	; See if we were run as a command with the executable file\n\
 	; name as an extra leading argument.\n\
 	move.d	[$r0+_dl_skip_args:GOT16],$r13\n\

sysdeps/generic/dl-sysdep.c

@@ -69,6 +69,9 @@ static ElfW(auxv_t) *_dl_auxv;
   } while (0)
 #endif
 
+#ifndef DL_STACK_END
+# define DL_STACK_END(cookie) ((void *) (cookie))
+#endif
 
 ElfW(Addr)
 _dl_sysdep_start (void **start_argptr,
@@ -98,6 +101,7 @@ _dl_sysdep_start (void **start_argptr,
   ElfW(Word) new_sysinfo = 0;
 #endif
 
+  __libc_stack_end = DL_STACK_END (start_argptr);
   DL_FIND_ARG_COMPONENTS (start_argptr, _dl_argc, INTUSE(_dl_argv), _environ,
 			  _dl_auxv);
 

sysdeps/i386/dl-machine.h

@@ -276,17 +276,15 @@ _dl_runtime_profile:\n\
 .globl _start\n\
 .globl _dl_start_user\n\
 _start:\n\
-	# Point %ebx at the GOT.\n\
-	call 0b\n\
-	addl $_GLOBAL_OFFSET_TABLE_, %ebx\n\
 	# Note that _dl_start gets the parameter in %eax.\n\
 	movl %esp, %eax\n\
-	# Store the highest stack address\n\
-	movl %eax, __libc_stack_end@GOTOFF(%ebx)\n\
 	call _dl_start\n\
 _dl_start_user:\n\
 	# Save the user entry point address in %edi.\n\
 	movl %eax, %edi\n\
+	# Point %ebx at the GOT.\n\
+	call 0b\n\
+	addl $_GLOBAL_OFFSET_TABLE_, %ebx\n\
 	# See if we were run as a command with the executable file\n\
 	# name as an extra leading argument.\n\
 	movl _dl_skip_args@GOTOFF(%ebx), %eax\n\

sysdeps/ia64/dl-machine.h

@@ -267,6 +267,10 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
   strong_alias (_dl_runtime_resolve, _dl_runtime_profile);
 #endif
 
+/* Undo the adds out0 = 16, sp below to get at the value we want in
+   __libc_stack_end.  */
+#define DL_STACK_END(cookie) \
+  ((void *) (((long) (cookie)) - 16))
 
 /* Initial entry point code for the dynamic linker.
    The C function `_dl_start' is the real entry point;
@@ -318,21 +322,14 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 "	 .save ar.pfs, r32\n"						      \
 "	 .body\n"							      \
 "	{ .mii\n"							      \
+"	  addl r3 = @gprel(_dl_skip_args), gp\n"			      \
+"	  adds r11 = 24, sp	/* Load the address of argv. */\n"	      \
 "	  /* Save the pointer to the user entry point fptr in loc2.  */\n"    \
 "	  mov loc2 = ret0\n"						      \
-"	  /* Store the highest stack address.  */\n"			      \
-"	  addl r2 = @ltoff(__libc_stack_end#), gp\n"			      \
-"	  addl r3 = @gprel(_dl_skip_args), gp\n"			      \
-"	  ;;\n"								      \
-"	}\n"								      \
-"	{ .mmi\n"							      \
-"	  ld8 r2 = [r2]\n"						      \
-"	  ld4 r3 = [r3]\n"						      \
-"	  adds r11 = 24, sp	/* Load the address of argv. */\n"	      \
 "	  ;;\n"								      \
 "	}\n"								      \
 "	{ .mii\n"							      \
-"	  st8 [r2] = sp\n"						      \
+"	  ld4 r3 = [r3]\n"						      \
 "	  adds r10 = 16, sp	/* Load the address of argc. */\n"	      \
 "	  mov out2 = r11\n"						      \
 "	  ;;\n"								      \
@@ -401,7 +398,7 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 "	  br.call.sptk.many b0 = _dl_init_internal#\n"			      \
 "	  ;;\n"								      \
 "	}\n"								      \
-"	/* Pass our finializer function to the user,\n"			      \
+"	/* Pass our finalizer function to the user,\n"			      \
 "	   and jump to the user's entry point.  */\n"			      \
 "	{ .mmi\n"							      \
 "	  ld8 r3 = [loc2], 8\n"						      \

sysdeps/m68k/dl-machine.h

@@ -157,9 +157,6 @@ _start:\n\
 _dl_start_user:\n\
 	| Save the user entry point address in %a4.\n\
 	move.l %d0, %a4\n\
-	| Remember the highest stack address.\n\
-	move.l __libc_stack_end@GOTPC(%pc), %a0\n\
-	move.l %sp, (%a0)\n\
 	| See if we were run as a command with the executable file\n\
 	| name as an extra leading argument.\n\
 	move.l _dl_skip_args(%pc), %d0\n\

sysdeps/s390/s390-32/dl-machine.h

@@ -262,9 +262,6 @@ _dl_start_user:\n\
 	# Point %r12 at the GOT.\n\
 	l     %r12,.Ladr0-.Llit(%r13)\n\
 	ar    %r12,%r13\n\
-	# Store the highest stack address\n\
-	l     %r1,__libc_stack_end@GOT(%r12)\n\
-	st    %r15, 0(%r1)\n\
 	# See if we were run as a command with the executable file\n\
 	# name as an extra leading argument.\n\
 	l     %r1,_dl_skip_args@GOT12(0,%r12)\n\

sysdeps/s390/s390-64/dl-machine.h

@@ -235,10 +235,6 @@ _dl_start_user:\n\
 	lgr   %r8,%r2\n\
 	# Point %r12 at the GOT.\n\
 	larl  %r12,_GLOBAL_OFFSET_TABLE_\n\
-	# Store the highest stack address\n\
-	lghi  %r1,__libc_stack_end@GOT\n\
-	lg    %r1,0(%r1,%r12)\n\
-	stg   %r15, 0(%r1)\n\
 	# See if we were run as a command with the executable file\n\
 	# name as an extra leading argument.\n\
 	lghi  %r1,_dl_skip_args@GOT\n\

sysdeps/sh/dl-machine.h

@@ -334,11 +334,7 @@ _dl_start_user:\n\
 	 add r0,r12\n\
 	.align 2\n\
 1:	.long _GLOBAL_OFFSET_TABLE_\n\
-2:	! Store the highest stack address\n\
+2:	! See if we were run as a command with the executable file\n\
-	mov.l .L_stack_end,r0\n\
-	mov.l @(r0,r12),r0\n\
-	mov.l r15,@r0\n\
-	! See if we were run as a command with the executable file\n\
 	! name as an extra leading argument.\n\
 	mov.l .L_dl_skip_args,r0\n\
 	mov.l @(r0,r12),r0\n\
@@ -381,8 +377,6 @@ _dl_start_user:\n\
 	.align 2\n\
 .L_dl_start:\n\
 	.long _dl_start@PLT\n\
-.L_stack_end:\n\
-	.long __libc_stack_end@GOT\n\
 .L_dl_skip_args:\n\
 	.long _dl_skip_args@GOT\n\
 .L_dl_init:\n\

sysdeps/sparc/sparc32/dl-machine.h

@@ -248,6 +248,11 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 /* The SPARC overlaps DT_RELA and DT_PLTREL.  */
 #define ELF_MACHINE_PLTREL_OVERLAP 1
 
+/* Undo the sub %sp, 6*4, %sp; add %sp, 22*4, %o0 below to get at the
+   value we want in __libc_stack_end.  */
+#define DL_STACK_END(cookie) \
+  ((void *) (((long) (cookie)) - (22 - 6) * 4))
+
 /* Initial entry point code for the dynamic linker.
    The C function `_dl_start' is the real entry point;
    its return value is the user program's entry point.  */
@@ -274,16 +279,10 @@ _dl_start_user:\n\
 	add	%l7, %o7, %l7\n\
   /* Save the user entry point address in %l0 */\n\
 	mov	%o0, %l0\n\
-  /* Store the highest stack address.  */\n\
-	sethi	%hi(__libc_stack_end), %g2\n\
-	or	%g2, %lo(__libc_stack_end), %g2\n\
-	ld	[%l7 + %g2], %l1\n\
-	sethi	%hi(_dl_skip_args), %g2\n\
-	add	%sp, 6*4, %l2\n\
-	or	%g2, %lo(_dl_skip_args), %g2\n\
-	st	%l2, [%l1]\n\
   /* See if we were run as a command with the executable file name as an\n\
      extra leading argument.  If so, adjust the contents of the stack.  */\n\
+	sethi	%hi(_dl_skip_args), %g2\n\
+	or	%g2, %lo(_dl_skip_args), %g2\n\
 	ld	[%l7+%g2], %i0\n\
 	ld	[%i0], %i0\n\
 	tst	%i0\n\

sysdeps/sparc/sparc64/dl-machine.h

@@ -666,6 +666,11 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 /* The PLT uses Elf64_Rela relocs.  */
 #define elf_machine_relplt elf_machine_rela
 
+/* Undo the sub %sp, 6*8, %sp; add %sp, STACK_BIAS + 22*8, %o0 below
+   to get at the value we want in __libc_stack_end.  */
+#define DL_STACK_END(cookie) \
+  ((void *) (((long) (cookie)) - (22 - 6) * 8 - STACK_BIAS))
+
 /* Initial entry point code for the dynamic linker.
    The C function `_dl_start' is the real entry point;
    its return value is the user program's entry point.  */
@@ -694,20 +699,14 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 "1:	call	11f\n"							\
 "	 sethi	%hi(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n"		\
 "11:	or	%l7, %lo(_GLOBAL_OFFSET_TABLE_-(1b-.)), %l7\n"		\
-"  /* Store the highest stack address.  */\n"				\
+"	sethi	%hi(_dl_skip_args), %g5\n"				\
-"	sethi	%hi(__libc_stack_end), %g5\n"				\
 "	add	%l7, %o7, %l7\n"					\
-"	or	%g5, %lo(__libc_stack_end), %g5\n"			\
+"	or	%g5, %lo(_dl_skip_args), %g5\n"				\
 "   /* Save the user entry point address in %l0.  */\n"			\
 "	mov	%o0, %l0\n"						\
-"	ldx	[%l7 + %g5], %l1\n"					\
-"	sethi	%hi(_dl_skip_args), %g5\n"				\
-"	add	%sp, 6*8, %l2\n"					\
 "   /* See if we were run as a command with the executable file name as an\n" \
 "      extra leading argument.  If so, we must shift things around since we\n" \
 "      must keep the stack doubleword aligned.  */\n"			\
-"	or	%g5, %lo(_dl_skip_args), %g5\n"				\
-"	stx	%l2, [%l1]\n"						\
 "	ldx	[%l7 + %g5], %i0\n"					\
 "	ld	[%i0], %i0\n"						\
 "	brz,pt	%i0, 2f\n"						\

sysdeps/unix/sysv/linux/Versions

@@ -110,7 +110,7 @@ libc {
     epoll_create; epoll_ctl; epoll_wait;
   }
   GLIBC_2.3.3 {
-    major; minor; makedev;
+    gnu_dev_major; gnu_dev_minor; gnu_dev_makedev;
   }
   GLIBC_PRIVATE {
     # needed by libpthread.

sysdeps/unix/sysv/linux/makedev.c

@@ -21,19 +21,19 @@
 #include <sys/sysmacros.h>
 
 unsigned int
-major (unsigned long long int dev)
+gnu_dev_major (unsigned long long int dev)
 {
   return ((dev >> 8) & 0xfff) | ((unsigned int) (dev >> 32) & ~0xfff);
 }
 
 unsigned int
-minor (unsigned long long int dev)
+gnu_dev_minor (unsigned long long int dev)
 {
   return (dev & 0xff) | ((unsigned int) (dev >> 12) & ~0xff);
 }
 
 unsigned long long int
-makedev (unsigned int major, unsigned int minor)
+gnu_dev_makedev (unsigned int major, unsigned int minor)
 {
   return ((minor & 0xff) | ((major & 0xfff) << 8)
 	  | (((unsigned long long int) (minor & ~0xff)) << 12)

sysdeps/unix/sysv/linux/sys/sysmacros.h

@@ -26,26 +26,29 @@
    not going to hack weird hacks to support the dev_t representation
    they need.  */
 #ifdef __GLIBC_HAVE_LONG_LONG
-extern unsigned int inline major (unsigned long long int __dev) __THROW;
+extern unsigned int inline gnu_dev_major (unsigned long long int __dev)
-extern unsigned int inline minor (unsigned long long int __dev) __THROW;
+     __THROW;
-extern unsigned long long int inline makedev (unsigned int __major,
+extern unsigned int inline gnu_dev_minor (unsigned long long int __dev)
-					      unsigned int __minor) __THROW;
+     __THROW;
+extern unsigned long long int inline gnu_dev_makedev (unsigned int __major,
+						      unsigned int __minor)
+     __THROW;
 
 # if defined __GNUC__ && __GNUC__ >= 2
 extern inline unsigned int
-major (unsigned long long int __dev)
+gnu_dev_major (unsigned long long int __dev) __THROW
 {
   return ((__dev >> 8) & 0xfff) | ((unsigned int) (__dev >> 32) & ~0xfff);
 }
 
 extern inline unsigned int
-minor (unsigned long long int __dev)
+gnu_dev_minor (unsigned long long int __dev) __THROW
 {
   return (__dev & 0xff) | ((unsigned int) (__dev >> 12) & ~0xff);
 }
 
 extern inline unsigned long long int
-makedev (unsigned int __major, unsigned int __minor)
+gnu_dev_makedev (unsigned int __major, unsigned int __minor) __THROW
 {
   return ((__minor & 0xff) | ((__major & 0xfff) << 8)
 	  | (((unsigned long long int) (__minor & ~0xff)) << 12)
@@ -54,11 +57,10 @@ makedev (unsigned int __major, unsigned int __minor)
 # endif
 
 
-/* Historically the three symbols were macros.  In case some programs
+/* Access the functions with their traditional names.  */
-   use #ifdef to check for definition provide some dummy macros.  */
+# define major(dev) gnu_dev_major (dev)
-# define major(dev) major (dev)
+# define minor(dev) gnu_dev_minor (dev)
-# define minor(dev) minor (dev)
+# define makedev(maj, min) gnu_dev_makedev (maj, min)
-# define makedev(maj, min) makedev (maj, min)
 #endif
 
 #endif /* sys/sysmacros.h */

sysdeps/x86_64/dl-machine.h

@@ -260,8 +260,6 @@ _dl_runtime_profile:\n\
 .globl _start\n\
 .globl _dl_start_user\n\
 _start:\n\
-	# Store the highest stack address\n\
-	movq %rsp, __libc_stack_end(%rip)\n\
 	movq %rsp, %rdi\n\
 	call _dl_start\n\
 _dl_start_user:\n\