Update.

	* sysdeps/s390/bits/link.h: New file.
	* sysdeps/s390/s390-32/dl-trampoline.S: New file.
	* sysdeps/s390/s390-64/dl-trampoline.S: New file.
	* sysdeps/s390/s390-32/dl-machine.h: Move PLT trampolines to
	dl-trampoline.S. Use RESOLVE_MAP instead of RESOLVE to protect
	relocation code.
	(elf_machine_runtime_setup): Test for dl_profile non-null.
	(elf_machine_rela): Remove code using RESOLVE.
	(ARCH_LA_PLTENTER, ARCH_LA_PLTEXIT): New.
	* sysdeps/s390/s390-64/dl-machine.h: Likewise.
	* sysdeps/generic/ldsodefs.h (La_s390_32_regs, La_s390_32_retval,
	La_s390_64_regs, La_s390_64_retval): New.
	* elf/tst-auditmod1.c: Add s390 entries.

2 files changed, 149 insertions, 135 deletions

diff --git a/sysdeps/s390/s390-32/dl-machine.h b/sysdeps/s390/s390-32/dl-machine.h
index 52922a813b..8bbf858fbf 100644
--- a/sysdeps/s390/s390-32/dl-machine.h
+++ b/sysdeps/s390/s390-32/dl-machine.h
@@ -1,5 +1,6 @@
 /* Machine-dependent ELF dynamic relocation inline functions.  S390 Version.
-   Copyright (C) 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005
+   Free Software Foundation, Inc.
    Contributed by Carl Pederson & Martin Schwidefsky.
    This file is part of the GNU C Library.
 
@@ -21,7 +22,6 @@
 #ifndef dl_machine_h
 #define dl_machine_h
 
-
 #define ELF_MACHINE_NAME "s390"
 
 #include <sys/param.h>
@@ -112,7 +112,8 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 	{
 	  got[2] = (Elf32_Addr) &_dl_runtime_profile;
 
-	  if (_dl_name_match_p (GLRO(dl_profile), l))
+	  if (GLRO(dl_profile) != NULL
+	      && _dl_name_match_p (GLRO(dl_profile), l))
 	    /* This is the object we are looking for.  Say that we really
 	       want profiling and the timers are started.  */
 	    GL(dl_profile_map) = l;
@@ -126,124 +127,6 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
   return lazy;
 }
 
-/* This code is used in dl-runtime.c to call the `fixup' function
-   and then redirect to the address it returns.  */
-
-/* s390:
-   Arguments are in register.
-   r2 - r7 holds the original parameters for the function call, fixup
-   and trampoline code use r0-r5 and r14-15. For the correct function
-   call r2-r5 and r14-15 must be restored.
-   Arguments from the PLT are stored at 24(r15) and 28(r15)
-   and must be moved to r2 and r3 for the fixup call (see elf32-s390.c
-   in the binutils for the PLT code).
-   Fixup function address in r2.
-*/
-#ifndef PROF
-#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
-  asm ( "\
-    .text\n\
-    .globl _dl_runtime_resolve\n\
-    .type _dl_runtime_resolve, @function\n\
-    .align 16\n\
-    " CFI_STARTPROC "\n\
-_dl_runtime_resolve:\n\
-    # save registers\n\
-    stm    2,5,32(15)\n\
-    st     14,48(15)\n\
-    lr     0,15\n\
-    ahi    15,-96\n\
-    " CFI_ADJUST_CFA_OFFSET(96)"\n\
-    st     0,0(15)\n\
-    # load args saved by PLT\n\
-    lm     2,3,120(15)\n\
-    basr   1,0\n\
-0:  ahi    1,1f-0b\n\
-    l      14,0(1)\n\
-    bas    14,0(14,1)   # call fixup\n\
-    lr     1,2          # function addr returned in r2\n\
-    # restore registers\n\
-    ahi    15,96\n\
-    " CFI_ADJUST_CFA_OFFSET(-96)" \n\
-    l      14,48(15)\n\
-    lm     2,5,32(15)\n\
-    br     1\n\
-1:  .long  fixup-1b\n\
-    " CFI_ENDPROC "\n\
-    .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
-\n\
-    .globl _dl_runtime_profile\n\
-    .type _dl_runtime_profile, @function\n\
-    .align 16\n\
-    " CFI_STARTPROC "\n\
-_dl_runtime_profile:\n\
-    # save registers\n\
-    stm    2,5,32(15)\n\
-    st     14,48(15)\n\
-    lr     0,15\n\
-    ahi    15,-96\n\
-    " CFI_ADJUST_CFA_OFFSET(96)"\n\
-    st     0,0(15)\n\
-    # load args saved by PLT\n\
-    lm     2,3,120(15)\n\
-    # load return address as third parameter\n\
-    lr     4,14\n\
-    basr   1,0\n\
-0:  ahi    1,1f-0b\n\
-    l      14,0(1)\n\
-    bas    14,0(14,1)   # call fixup\n\
-    lr     1,2          # function addr returned in r2\n\
-    # restore registers\n\
-    ahi    15,96\n\
-    " CFI_ADJUST_CFA_OFFSET(-96)" \n\
-    l      14,48(15)\n\
-    lm     2,5,32(15)\n\
-    br     1\n\
-1:  .long  profile_fixup-1b\n\
-    " CFI_ENDPROC "\n\
-    .size _dl_runtime_profile, .-_dl_runtime_profile\n\
-");
-#else
-#define ELF_MACHINE_RUNTIME_TRAMPOLINE \
-  asm ( "\
-    .text\n\
-    .globl _dl_runtime_resolve\n\
-    .globl _dl_runtime_profile\n\
-    .type _dl_runtime_resolve, @function\n\
-    .type _dl_runtime_profile, @function\n\
-    .align 16\n\
-    " CFI_STARTPROC "\n\
-_dl_runtime_resolve:\n\
-_dl_runtime_profile:\n\
-    # save registers\n\
-    stm    2,5,32(15)\n\
-    st     14,48(15)\n\
-    lr     0,15\n\
-    ahi    15,-96\n\
-    " CFI_ADJUST_CFA_OFFSET(96)"\n\
-    st     0,0(15)\n\
-    # load args saved by PLT\n\
-    lm     2,3,120(15)\n\
-    # load return address as third parameter\n\
-    lr     4,14\n\
-    basr   1,0\n\
-0:  ahi    1,1f-0b\n\
-    l      14,0(1)\n\
-    bas    14,0(14,1)   # call fixup\n\
-    lr     1,2          # function addr returned in r2\n\
-    # restore registers\n\
-    ahi    15,96\n\
-    " CFI_ADJUST_CFA_OFFSET(-96)" \n\
-    l      14,48(15)\n\
-    lm     2,5,32(15)\n\
-    br     1\n\
-1:  .long  fixup-1b\n\
-    " CFI_ENDPROC "\n\
-    .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
-    .size _dl_runtime_profile, .-_dl_runtime_profile\n\
-");
-#endif
-
 /* Mask identifying addresses reserved for the user program,
    where the dynamic linker should not map anything.  */
 #define ELF_MACHINE_USER_ADDRESS_MASK   0xf8000000UL
@@ -375,15 +258,20 @@ elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
   return value;
 }
 
+/* Names of the architecture-specific auditing callback functions.  */
+#define ARCH_LA_PLTENTER s390_32_gnu_pltenter
+#define ARCH_LA_PLTEXIT s390_32_gnu_pltexit
+
 #endif /* !dl_machine_h */
 
 
-#ifdef RESOLVE
+#ifdef RESOLVE_MAP
 
 /* Perform the relocation specified by RELOC and SYM (which is fully resolved).
    MAP is the object containing the reloc.  */
 
-static inline void
+auto inline void
+__attribute__ ((always_inline))
 elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 		  const Elf32_Sym *sym, const struct r_found_version *version,
 		  void *const reloc_addr_arg)
@@ -417,17 +305,8 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
 #ifndef RESOLVE_CONFLICT_FIND_MAP
       const Elf32_Sym *const refsym = sym;
 #endif
-#if defined USE_TLS && !defined RTLD_BOOTSTRAP
       struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
       Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
-#else
-      Elf32_Addr value = RESOLVE (&sym, version, r_type);
-
-# ifndef RTLD_BOOTSTRAP
-      if (sym)
-# endif
-	value += sym->st_value;
-#endif /* use TLS and !RTLD_BOOTSTRAP */
 
       switch (r_type)
 	{
@@ -539,7 +418,8 @@ elf_machine_rela (struct link_map *map, const Elf32_Rela *reloc,
     }
 }
 
-static inline void
+auto inline void
+__attribute__ ((always_inline))
 elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
 			   void *const reloc_addr_arg)
 {
@@ -547,7 +427,8 @@ elf_machine_rela_relative (Elf32_Addr l_addr, const Elf32_Rela *reloc,
   *reloc_addr = l_addr + reloc->r_addend;
 }
 
-static inline void
+auto inline void
+__attribute__ ((always_inline))
 elf_machine_lazy_rel (struct link_map *map,
 		      Elf32_Addr l_addr, const Elf32_Rela *reloc)
 {
@@ -567,4 +448,4 @@ elf_machine_lazy_rel (struct link_map *map,
     _dl_reloc_bad_type (map, r_type, 1);
 }
 
-#endif /* RESOLVE */
+#endif /* RESOLVE_MAP */
diff --git a/sysdeps/s390/s390-32/dl-trampoline.S b/sysdeps/s390/s390-32/dl-trampoline.S
new file mode 100644
index 0000000000..4ee2295b89
--- /dev/null
+++ b/sysdeps/s390/s390-32/dl-trampoline.S
@@ -0,0 +1,133 @@
+/* PLT trampolines.  s390 version.
+   Copyright (C) 2005 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.  */
+
+/* This code is used in dl-runtime.c to call the `fixup' function
+   and then redirect to the address it returns.  */
+
+/* The PLT stubs will call _dl_runtime_resolve/_dl_runtime_profile
+ * with the following linkage:
+ *   r2 - r6 : parameter registers
+ *   f0, f2 : floating point parameter registers
+ *   24(r15), 28(r15) : PLT arguments PLT1, PLT2
+ *   96(r15) : additional stack parameters
+ * The normal clobber rules for function calls apply:
+ *   r0 - r5 : call clobbered
+ *   r6 - r13 :	 call saved
+ *   r14 : return address (call clobbered)
+ *   r15 : stack pointer (call saved)
+ *   f4, f6 : call saved
+ *   f0 - f3, f5, f7 - f15 : call clobbered
+ */
+
+#include <sysdep.h>
+
+	.text
+	.globl _dl_runtime_resolve
+	.type _dl_runtime_resolve, @function
+	cfi_startproc
+	.align 16
+_dl_runtime_resolve:
+	stm    %r2,%r5,32(%r15)		# save registers
+	st     %r14,8(%r15)
+	lr     %r0,%r15			# create stack frame
+	ahi    %r15,-96
+	cfi_adjust_cfa_offset (96)
+	st     0,0(%r15)
+	lm     %r2,%r3,120(%r15)	# load args saved by PLT
+	basr   %r1,0
+0:	l      %r14,1f-0b(%r1)
+	bas    %r14,0(%r14,%r1)		# call resolver
+	lr     %r1,%r2			# function addr returned in r2
+	ahi    %r15,96			# remove stack frame
+	cfi_adjust_cfa_offset (-96)
+	l      %r14,8(15)		# restore registers
+	lm     %r2,%r5,32(%r15)
+	br     %r1
+1:	.long  _dl_fixup - 0b
+	cfi_endproc
+	.size _dl_runtime_resolve, .-_dl_runtime_resolve
+
+
+	.globl _dl_runtime_profile
+	.type _dl_runtime_profile, @function
+	cfi_startproc
+	.align 16
+_dl_runtime_profile:
+	stm    %r2,%r6,32(%r15)		# save registers
+	std    %f0,56(%r15)
+	std    %f2,64(%r15)
+	st     %r6,8(%r15)
+	st     %r12,12(%r15)
+	st     %r14,16(%r15)
+	lr     %r12,%r15		# create stack frame
+	cfi_def_cfa_register (12)
+	ahi    %r15,-96
+	st     %r12,0(%r15)
+	lm     %r2,%r3,24(%r12)		# load arguments saved by PLT
+	lr     %r4,%r14			# return address as third parameter
+	basr   %r1,0
+0:	l      %r14,6f-0b(%r1)
+	la     %r5,32(%r12)		# pointer to struct La_s390_32_regs
+	la     %r6,20(%r12)		# long int * framesize
+	bas    %r14,0(%r14,%r1)		# call resolver
+	lr     %r1,%r2			# function addr returned in r2
+	icm    %r0,15,20(%r12)		# load & test framesize
+	jnm    2f
+	lm     %r2,%r6,32(%r12)
+	ld     %f0,56(%r12)
+	ld     %f2,64(%r12)
+	basr   %r14,%r1			# call resolved function
+1:	lr     %r15,%r12		# remove stack frame
+	cfi_def_cfa_register (15)
+	l      %r14,16(%r15)		# restore registers
+	l      %r12,12(%r15)
+	l      %r6,8(%r15)
+	br     %r14
+	cfi_def_cfa_register (12)
+2:	jz     4f			# framesize == 0 ?
+	ahi    %r0,7			# align framesize to 8
+	lhi    %r2,-8
+	nr     %r0,%r2
+	slr    %r15,%r0			# make room for framesize bytes
+	st     %r12,0(%r15)
+	la     %r2,96(%r15)
+	la     %r3,96(%r12)
+	srl    %r0,3
+3:	mvc    0(8,%r2),0(%r3)		# copy additional parameters
+	la     %r2,8(%r2)
+	la     %r3,8(%r3)
+	brct   %r0,3b
+4:	lm     %r2,%r6,32(%r12)		# load register parameters
+	ld     %f0,56(%r12)
+	ld     %f2,64(%r12)
+	basr   %r14,%r1			# call resolved function
+	stm    %r2,%r3,72(%r12)
+	std    %f0,80(%r12)
+	lm     %r2,%r3,24(%r12)		# load arguments saved by PLT
+	basr   %r1,0
+5:	l      %r14,7f-5b(%r1)
+	la     %r4,32(%r12)		# pointer to struct La_s390_32_regs
+	la     %r5,72(%r12)		# pointer to struct La_s390_32_retval
+	basr   %r14,%r1			# call _dl_call_pltexit	
+	j      1b
+6:	.long  _dl_profile_fixup - 0b
+7:	.long  _dl_call_pltexit - 5b
+	cfi_endproc
+	.size _dl_runtime_profile, .-_dl_runtime_profile
+