Update.

2001-12-11  Jakub Jelinek  <jakub@redhat.com>

	* elf/Makefile (dl-routines): Add conflict.
	(rtld-ldscript-in, rtld-ldscript, rtld-parms): Remove.
	(ld.so): Add _begin local symbol.
	* elf/elf.h (DT_VALTAGIDX, DT_VALNUM, DT_ADDRTAGIDX, DT_ADDRNUM):
	Define.
	* elf/dl-deps.c (_dl_build_local_scope): New.
	(_dl_map_object_deps): If LD_TRACE_PRELINKING, compute local scopes
	of all libraries.
	* elf/do-rel.h (VALIDX): Define.
	(elf_dynamic_do_rel): If ELF_MACHINE_PLT_REL is defined, don't do
	lazy binding for RELA.  If DT_GNU_PRELINKED, DT_RELACOUNT relocations
	can be skipped.
	* elf/dl-conflict.c: New file.
	* elf/dl-lookup.c (_dl_debug_bindings): New.
	(_dl_lookup_symbol): Use _dl_debug_bindings.  Reference_name is always
	non-NULL.
	(_dl_lookup_symbol_skip): Likewise.
	(_dl_lookup_versioned_symbol): Likewise.
	(_dl_lookup_versioned_symbol_skip): Likewise.
	* elf/dl-runtime.c (PLTREL): If ELF_MACHINE_PLT_REL is defined,
	define to ElfW(Rel).
	* elf/dynamic-link.h (elf_get_dynamic_info): Record selected dynamic
	tags in the DT_VALRNGLO..DT_VALRNGHI and DT_ADDRRNGLO..DT_ADDRRNGHI
	ranges.
	Don't adjust address dynamic tags if l_addr is 0.
	* elf/rtld.c (_dl_trace_prelink, _dl_trace_prelink_map): New variables.
	(_dl_start): Skip ELF_DYNAMIC_RELOCATE if ld.so is prelinked.
	(VALIDX, ADDRIDX): Define.
	(_dl_start_final): Initialize _dl_rtld_map's l_map_start and l_map_end.
	(dl_main): Print library list for LD_TRACE_PRELINKING.
	If prelinking information can be used, skip relocating libraries and
	call _dl_resolve_conflicts instead.
	(process_envvars): Handle LD_TRACE_PRELINKING envvar.
	* elf/dl-load.c (_dl_map_object): Don't create fake libs
	if LD_TRACE_PRELINKING.
	* include/link.h (struct link_map) [l_info]: Add DT_VALNUM
	+ DT_ADDRNUM.
	* sysdeps/generic/ldsodefs.h (_dl_trace_prelink_map): New declaration.
	(DL_DEBUG_PRELINK): Define.
	(_dl_resolve_conflicts): Add prototype.

	* sysdeps/alpha/dl-machine.h (elf_machine_runtime_setup): Reinitialize
	.plt for prelinked libraries where prelinking info cannot be used.
	(elf_machine_rela): If relocating R_ALPHA_JMP_SLOT in .gnu.conflict
	section, use RESOLVE_CONFLICT_FIND_MAP to find out reloc's link_map.
	* sysdeps/arm/bits/link.h: New file.
	* sysdeps/arm/dl-machine.h (elf_machine_runtime_setup): Save original
	content of .got[1].
	(ELF_MACHINE_NO_RELA): Only define if RTLD_BOOTSTRAP.
	(ELF_MACHINE_PLT_REL): Define.
	(elf_machine_rela, elf_machine_rela_relative): New.
	(elf_machine_lazy_rel): Reinitialize R_ARM_JUMP_SLOT address instead
	of adjusting it if prelinked and prelinking cannot be used.
	* sysdeps/i386/bits/link.h: New file.
	* sysdeps/i386/dl-machine.h (elf_machine_runtime_setup): Save original
	content of .got[1].
	(ELF_MACHINE_NO_RELA): Only define if RTLD_BOOTSTRAP.
	(ELF_MACHINE_PLT_REL): Define.
	(elf_machine_rela, elf_machine_rela_relative): New.
	(elf_machine_lazy_rel): Reinitialize R_386_JUMP_SLOT address instead
	of adjusting it if prelinked and prelinking cannot be used.
	* sysdeps/powerpc/dl-machine.h (elf_machine_rela): If relocating
	conflicts, skip finaladdr computation.  Use RESOLVE_CONFLICT_FIND_MAP
	to find out map for R_PPC_JMP_SLOT relocs.
	* sysdeps/sparc/sparc32/dl-machine.h (VALIDX): Define.
	(OPCODE_BA): Define.
	(elf_machine_runtime_setup): Reinitialize .plt for prelinked
	libraries where prelinking info cannot be used.
	(sparc_fixup_plt): Renamed from elf_machine_fixup_plt.
	(elf_machine_fixup_plt): Call sparc_fixup_plt.
	(elf_machine_rela): Set value to 0 if relocating conflicts.
	Call sparc_fixup_plt for R_SPARC_JMP_SLOT.
	* sysdeps/sparc/sparc64/dl-machine.h (VALIDX): Define.
	(sparc64_fixup_plt): Fix a typo.
	(elf_machine_rela): Set value to 0 if relocating conflicts.
	Handle R_SPARC_JMP_SLOT relocs when relocating conflicts.
	(elf_machine_runtime_setup): Reinitialize .plt for prelinked
	libraries where prelinking info cannot be used.
	* sysdeps/sh/bits/link.h: New file.
	* sysdeps/sh/dl-machine.h (elf_machine_runtime_setup): Save original
	content of .got[1].
	(elf_machine_lazy_rel): Reinitialize R_SH_JMP_SLOT address instead
	of adjusting it if prelinked and prelinking cannot be used.
	* sysdeps/s390/s390-32/bits/link.h: New file.
	* sysdeps/s390/s390-32/dl-machine.h (elf_machine_runtime_setup):
	Save original content of .got[1].
	(elf_machine_lazy_rel): Reinitialize R_390_JMP_SLOT address instead
	of adjusting it if prelinked and prelinking cannot be used.
	* sysdeps/s390/s390-64/bits/link.h: New file.
	* sysdeps/s390/s390-64/dl-machine.h (elf_machine_runtime_setup):
	Save original content of .got[1].
	(elf_machine_lazy_rel): Reinitialize R_390_JMP_SLOT address instead
	of adjusting it if prelinked and prelinking cannot be used.
	* sysdeps/x86_64/bits/link.h: New file.
	* sysdeps/x86_64/dl-machine.h (elf_machine_runtime_setup):
	Save original content of .got[1].
	(elf_machine_lazy_rel): Reinitialize R_X86_64_JMP_SLOT address instead
	of adjusting it if prelinked and prelinking cannot be used.

1 files changed, 35 insertions, 25 deletions

diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h
index 8e70a7eaec..bbfd301231 100644
--- a/elf/dynamic-link.h
+++ b/elf/dynamic-link.h
@@ -1,5 +1,5 @@
 /* Inline functions for dynamic linking.
-   Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
+   Copyright (C) 1995,96,97,98,99,2000,2001 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
@@ -58,31 +58,39 @@ elf_get_dynamic_info (struct link_map *l)
       else if ((Elf32_Word) DT_EXTRATAGIDX (dyn->d_tag) < DT_EXTRANUM)
 	info[DT_EXTRATAGIDX (dyn->d_tag) + DT_NUM + DT_THISPROCNUM
 	     + DT_VERSIONTAGNUM] = dyn;
+      else if ((Elf32_Word) DT_VALTAGIDX (dyn->d_tag) < DT_VALNUM)
+	info[DT_VALTAGIDX (dyn->d_tag) + DT_NUM + DT_THISPROCNUM
+	     + DT_VERSIONTAGNUM + DT_EXTRANUM] = dyn;
+      else if ((Elf32_Word) DT_ADDRTAGIDX (dyn->d_tag) < DT_ADDRNUM)
+	info[DT_ADDRTAGIDX (dyn->d_tag) + DT_NUM + DT_THISPROCNUM
+	     + DT_VERSIONTAGNUM + DT_EXTRANUM + DT_VALNUM] = dyn;
       else
 	assert (! "bad dynamic tag");
       ++dyn;
     }
 #ifndef DL_RO_DYN_SECTION
-  if (info[DT_PLTGOT] != NULL)
-    info[DT_PLTGOT]->d_un.d_ptr += l_addr;
-  if (info[DT_STRTAB] != NULL)
-    info[DT_STRTAB]->d_un.d_ptr += l_addr;
-  if (info[DT_SYMTAB] != NULL)
-    info[DT_SYMTAB]->d_un.d_ptr += l_addr;
-# if ! ELF_MACHINE_NO_RELA
-  if (info[DT_RELA] != NULL)
+  /* Don't adjust .dynamic unnecessarily.  */
+  if (l_addr)
     {
-      assert (info[DT_RELAENT]->d_un.d_val == sizeof (ElfW(Rela)));
-      info[DT_RELA]->d_un.d_ptr += l_addr;
-    }
+      if (info[DT_PLTGOT] != NULL)
+	info[DT_PLTGOT]->d_un.d_ptr += l_addr;
+      if (info[DT_STRTAB] != NULL)
+	info[DT_STRTAB]->d_un.d_ptr += l_addr;
+      if (info[DT_SYMTAB] != NULL)
+	info[DT_SYMTAB]->d_un.d_ptr += l_addr;
+# if ! ELF_MACHINE_NO_RELA
+      if (info[DT_RELA] != NULL)
+	info[DT_RELA]->d_un.d_ptr += l_addr;
 # endif
 # if ! ELF_MACHINE_NO_REL
-  if (info[DT_REL] != NULL)
-    {
-      assert (info[DT_RELENT]->d_un.d_val == sizeof (ElfW(Rel)));
-      info[DT_REL]->d_un.d_ptr += l_addr;
-    }
+      if (info[DT_REL] != NULL)
+	info[DT_REL]->d_un.d_ptr += l_addr;
 # endif
+      if (info[DT_JMPREL] != NULL)
+	info[DT_JMPREL]->d_un.d_ptr += l_addr;
+      if (info[VERSYMIDX (DT_VERSYM)] != NULL)
+	info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr += l_addr;
+    }
 #endif
   if (info[DT_PLTREL] != NULL)
     {
@@ -95,12 +103,14 @@ elf_get_dynamic_info (struct link_map *l)
 	      || info[DT_PLTREL]->d_un.d_val == DT_RELA);
 # endif
     }
-#ifndef DL_RO_DYN_SECTION
-  if (info[DT_JMPREL] != NULL)
-    info[DT_JMPREL]->d_un.d_ptr += l_addr;
-  if (info[VERSYMIDX (DT_VERSYM)] != NULL)
-    info[VERSYMIDX (DT_VERSYM)]->d_un.d_ptr += l_addr;
-#endif
+# if ! ELF_MACHINE_NO_RELA
+  if (info[DT_RELA] != NULL)
+    assert (info[DT_RELAENT]->d_un.d_val == sizeof (ElfW(Rela)));
+# endif
+# if ! ELF_MACHINE_NO_REL
+  if (info[DT_REL] != NULL)
+    assert (info[DT_RELENT]->d_un.d_val == sizeof (ElfW(Rel)));
+# endif
   if (info[DT_FLAGS] != NULL)
     {
       /* Flags are used.  Translate to the old form where available.
@@ -177,8 +187,8 @@ elf_get_dynamic_info (struct link_map *l)
 									      \
     if ((map)->l_info[DT_##RELOC])					      \
       {									      \
-        ranges[0].start = D_PTR ((map), l_info[DT_##RELOC]);		      \
-        ranges[0].size = (map)->l_info[DT_##RELOC##SZ]->d_un.d_val;	      \
+	ranges[0].start = D_PTR ((map), l_info[DT_##RELOC]);		      \
+	ranges[0].size = (map)->l_info[DT_##RELOC##SZ]->d_un.d_val;	      \
       }									      \
     if ((map)->l_info[DT_PLTREL]					      \
 	&& (!test_rel || (map)->l_info[DT_PLTREL]->d_un.d_val == DT_##RELOC)) \