Updated to fedora-glibc-20050208T0948cvs/fedora-glibc-2_3_4-6

2 files changed, 141 insertions, 122 deletions

diff --git a/sysdeps/s390/s390-64/dl-machine.h b/sysdeps/s390/s390-64/dl-machine.h
index 82ece0be0f..5026a2edad 100644
--- a/sysdeps/s390/s390-64/dl-machine.h
+++ b/sysdeps/s390/s390-64/dl-machine.h
@@ -1,6 +1,6 @@
 /* Machine-dependent ELF dynamic relocation inline functions.
    64 bit S/390 Version.
-   Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
    Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
    This file is part of the GNU C Library.
 
@@ -105,7 +105,8 @@ elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
 	{
 	  got[2] = (Elf64_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;
@@ -119,112 +120,6 @@ 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 48(r15) and 56(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\
-    stmg   2,5,64(15)\n\
-    stg	   14,96(15)\n\
-    lgr	   0,15\n\
-    aghi   15,-160\n\
-    " CFI_ADJUST_CFA_OFFSET(160)"\n\
-    stg	   0,0(15)\n\
-    # load args saved by PLT\n\
-    lmg	   2,3,208(15)\n\
-    brasl  14,fixup	# call fixup\n\
-    lgr	   1,2		# function addr returned in r2\n\
-    # restore registers\n\
-    aghi   15,160\n\
-    " CFI_ADJUST_CFA_OFFSET(-160)" \n\
-    lg	   14,96(15)\n\
-    lmg	   2,5,64(15)\n\
-    br	   1\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\
-    stmg   2,5,64(15)\n\
-    stg	   14,96(15)\n\
-    lgr	   0,15\n\
-    aghi   15,-160\n\
-    " CFI_ADJUST_CFA_OFFSET(160)"\n\
-    stg	   0,0(15)\n\
-    # load args saved by PLT\n\
-    lmg	   2,3,208(15)\n\
-    # load return address as third parameter\n\
-    lgr	   4,14\n\
-    brasl  14,profile_fixup  # call fixup\n\
-    lgr	   1,2		# function addr returned in r2\n\
-    # restore registers\n\
-    aghi   15,160\n\
-    " CFI_ADJUST_CFA_OFFSET(-160)" \n\
-    lg	   14,96(15)\n\
-    lmg	   2,5,64(15)\n\
-    br	   1\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\
-    stmg   2,5,64(15)\n\
-    stg	   14,96(15)\n\
-    lgr	   0,15\n\
-    aghi   15,-160\n\
-    " CFI_ADJUST_CFA_OFFSET(160)"\n\
-    stg	   0,0(15)\n\
-    # load args saved by PLT\n\
-    lmg	   2,3,208(15)\n\
-    # load return address as third parameter\n\
-    lgr	   4,14\n\
-    brasl  14,profile_fixup	 # call fixup\n\
-    lgr	   1,2		# function addr returned in r2\n\
-    # restore registers\n\
-    aghi   15,160\n\
-    " CFI_ADJUST_CFA_OFFSET(-160)" \n\
-    lg	   14,96(15)\n\
-    lmg	   2,5,64(15)\n\
-    br	   1\n\
-    " CFI_ENDPROC "\n\
-    .size _dl_runtime_resolve, .-_dl_runtime_resolve\n\
-    .size _dl_runtime_profile, .-_dl_runtime_profile\n\
-");
-#endif
-
 /* 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.	*/
@@ -343,14 +238,19 @@ elf_machine_plt_value (struct link_map *map, const Elf64_Rela *reloc,
   return value;
 }
 
+/* Names of the architecture-specific auditing callback functions.  */
+#define ARCH_LA_PLTENTER s390_64_gnu_pltenter
+#define ARCH_LA_PLTEXIT s390_64_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 Elf64_Rela *reloc,
 		  const Elf64_Sym *sym, const struct r_found_version *version,
 		  void *const reloc_addr_arg)
@@ -384,17 +284,8 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
 #ifndef RESOLVE_CONFLICT_FIND_MAP
       const Elf64_Sym *const refsym = sym;
 #endif
-#if defined USE_TLS && !defined RTLD_BOOTSTRAP
       struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
       Elf64_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
-#else
-      Elf64_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)
 	{
@@ -518,7 +409,8 @@ elf_machine_rela (struct link_map *map, const Elf64_Rela *reloc,
     }
 }
 
-static inline void
+auto inline void
+__attribute__ ((always_inline))
 elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
 			   void *const reloc_addr_arg)
 {
@@ -526,7 +418,8 @@ elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_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,
 		      Elf64_Addr l_addr, const Elf64_Rela *reloc)
 {
@@ -546,4 +439,4 @@ 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/s390-64/dl-trampoline.S b/sysdeps/s390/s390-64/dl-trampoline.S
new file mode 100644
index 0000000000..215d869803
--- /dev/null
+++ b/sysdeps/s390/s390-64/dl-trampoline.S
@@ -0,0 +1,126 @@
+/* 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.  */
+
+/* The PLT stubs will call _dl_runtime_resolve/_dl_runtime_profile
+ * with the following linkage:
+ *   r2 - r6 : parameter registers
+ *   f0, f2, f4, f6 : 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)
+ *   f1, f3, f5, f7 : 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:
+	stmg   2,5,64(15)	# save registers
+	stg    14,96(15)
+	lgr    0,15		# create stack frame
+	aghi   15,-160
+	cfi_adjust_cfa_offset (160)
+	stg    0,0(15)
+	lmg    2,3,208(15)	# load args saved by PLT
+	brasl  14,_dl_fixup	# call fixup
+	lgr    1,2		# function addr returned in r2
+	aghi   15,160		# remove stack frame
+	cfi_adjust_cfa_offset (-160)
+	lg     14,96(15)	# restore registers
+	lmg    2,5,64(15)
+	br     1
+	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:
+	stmg   %r2,%r6,64(%r15)		# save registers
+	std    %f0,104(%r15)
+	std    %f2,112(%r15)
+	std    %f4,120(%r15)
+	std    %f6,128(%r15)
+	stg    %r6,16(%r15)
+	stg    %r12,24(%r15)
+	stg    %r14,32(%r15)
+	lgr    %r12,%r15		# create stack frame
+	cfi_def_cfa_register (12)
+	aghi   %r15,-160
+	stg    %r12,0(%r15)
+	lmg    %r2,%r3,48(%r12)		# load arguments saved by PLT
+	lgr    %r4,%r14			# return address as third parameter
+	la     %r5,64(%r12)		# pointer to struct La_s390_32_regs
+	la     %r6,40(%r12)		# long int * framesize
+	brasl  %r14,_dl_profile_fixup	# call resolver
+	lgr    %r1,%r2			# function addr returned in r2
+	lg     %r0,40(%r12)		# load framesize
+	ltgr   %r0,%r0
+	jnm    1f
+	lmg    %r2,%r6,64(%r12)
+	ld     %f0,104(%r12)
+	ld     %f2,112(%r12)
+	ld     %f4,120(%r12)
+	ld     %f6,128(%r12)
+	basr   %r14,%r1			# call resolved function
+0:	lr     %r15,%r12		# remove stack frame
+	cfi_def_cfa_register (15)
+	lg     %r14,32(%r15)		# restore registers
+	lg     %r12,24(%r15)
+	lg     %r6,16(%r15)
+	br     %r14
+	cfi_def_cfa_register (12)
+1:	jz     4f			# framesize == 0 ?
+	aghi   %r0,7			# align framesize to 8
+	nill   %r0,0xfff8
+	slgr   %r15,%r0			# make room for framesize bytes
+	stg    %r12,0(%r15)
+	la     %r2,160(%r15)
+	la     %r3,160(%r12)
+	srlg   %r0,%r0,3
+3:	mvc    0(8,%r2),0(%r3)		# copy additional parameters
+	la     %r2,8(%r2)
+	la     %r3,8(%r3)
+	brctg  %r0,3b
+4:	lmg    %r2,%r6,64(%r12)		# load register parameters
+	ld     %f0,104(%r12)
+	ld     %f2,112(%r12)
+	ld     %f4,120(%r12)
+	ld     %f6,128(%r12)
+	basr   %r14,%r1			# call resolved function
+	stg    %r2,136(%r12)
+	std    %f0,144(%r12)
+	lmg    %r2,%r3,48(%r12)		# load arguments saved by PLT
+	la     %r4,32(%r12)		# pointer to struct La_s390_32_regs
+	la     %r5,72(%r12)		# pointer to struct La_s390_32_retval
+	brasl  %r14,_dl_call_pltexit
+	j      0b
+	cfi_endproc
+	.size _dl_runtime_profile, .-_dl_runtime_profile