linuxthreads/ChangeLog

2003-02-25  Roland McGrath  <roland@redhat.com>


	* sysdeps/powerpc/powerpc64/dl-machine.h: Support new TLS relocs.
	* sysdeps/powerpc/powerpc64/dl-tls.h: New file.

2 files changed, 196 insertions, 8 deletions

diff --git a/sysdeps/powerpc/powerpc64/dl-machine.h b/sysdeps/powerpc/powerpc64/dl-machine.h
index 62e7f22c6b..7d7e78677a 100644
--- a/sysdeps/powerpc/powerpc64/dl-machine.h
+++ b/sysdeps/powerpc/powerpc64/dl-machine.h
@@ -328,9 +328,19 @@ elf_machine_dynamic (void)
    PLT entries should not be allowed to define the value.
    ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
    of the main executable's symbols, as for a COPY reloc.  */
+
+#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD)
+#define elf_machine_type_class(type) \
+  (   (((type) == R_PPC64_DTPMOD64	\
+    ||  (type) == R_PPC64_DTPREL64	\
+    ||  (type) == R_PPC64_TPREL64 \
+    ||  (type) == R_PPC64_ADDR24) * ELF_RTYPE_CLASS_PLT)	\
+    | (((type) == R_PPC64_COPY) * ELF_RTYPE_CLASS_COPY))
+#else
 #define elf_machine_type_class(type) \
   ((((type) == R_PPC64_ADDR24) * ELF_RTYPE_CLASS_PLT)	\
    | (((type) == R_PPC64_COPY) * ELF_RTYPE_CLASS_COPY))
+#endif
 
 /* A reloc type used for ld.so cmdline arg lookups to reject PLT entries.  */
 #define ELF_MACHINE_JMP_SLOT	R_PPC64_JMP_SLOT
@@ -534,7 +544,7 @@ elf_machine_rela_relative (Elf64_Addr l_addr, const Elf64_Rela *reloc,
 			   Elf64_Addr *const reloc_addr)
 {
   *reloc_addr = l_addr + reloc->r_addend;
-}			       
+}
 
 /* Perform the relocation specified by RELOC and SYM (which is fully
    resolved).  MAP is the object containing the reloc.  */
@@ -547,7 +557,7 @@ elf_machine_rela (struct link_map *map,
 {
   int r_type = ELF64_R_TYPE (reloc->r_info);
   struct link_map *sym_map;
-  Elf64_Addr value;
+  Elf64_Addr value, raw_value;
 #ifndef RTLD_BOOTSTRAP
   const Elf64_Sym *const refsym = sym;
   /* This is defined in rtld.c, but nowhere in the static libc.a; make the
@@ -564,28 +574,80 @@ elf_machine_rela (struct link_map *map,
       /* Already done in dynamic linker.  */
       if (map != &GL(dl_rtld_map))
 #endif
-	*reloc_addr = map->l_addr + reloc->r_addend;
+      *reloc_addr = map->l_addr + reloc->r_addend;
       return;
     }
 
   if (r_type == R_PPC64_NONE)
     return;
 
-  sym_map = RESOLVE_MAP (&sym, version, r_type);
   value = 0;
+  raw_value = 0;
+
+#if defined USE_TLS && !defined RTLD_BOOTSTRAP
+  sym_map = RESOLVE_MAP (&sym, version, r_type);
+  raw_value = value = reloc->r_addend;
   if (sym_map)
+    if (sym)
     {
-      if (sym)
-	value = sym_map->l_addr + sym->st_value;
-      value += reloc->r_addend;
+      raw_value += sym->st_value;
+      value = raw_value + sym_map->l_addr;
     }
+#else
+  sym_map = RESOLVE_MAP (&sym, version, r_type);
+  if (sym_map)
+  {
+    if (sym)
+    {
+      raw_value = sym->st_value + sym_map->l_addr;
+    }
+    value = raw_value + reloc->r_addend;
+  }
+#endif
 
   switch (r_type)
     {
     case R_PPC64_ADDR64:
     case R_PPC64_GLOB_DAT:
-      *reloc_addr = value;
+      *reloc_addr = value;      
       return;
+      
+#if defined USE_TLS && (!defined RTLD_BOOTSTRAP || USE___THREAD)
+
+    case R_PPC64_DTPMOD64:
+#ifdef RTLD_BOOTSTRAP
+    /* During startup the dynamic linker is always index 1.  */
+      *reloc_addr = 1;
+#else
+    /* Get the information from the link map returned by the
+       resolv function.  */
+      if (sym_map != NULL)
+        {
+          *reloc_addr = sym_map->l_tls_modid;
+        }
+#endif
+      return;
+      
+    case R_PPC64_TPREL64:
+#ifdef RTLD_BOOTSTRAP
+      *reloc_addr = raw_value + map->l_tls_offset - 0x7010;
+#else
+      if (sym_map)
+      {
+        CHECK_STATIC_TLS (map, sym_map);
+        *reloc_addr = raw_value + sym_map->l_tls_offset - 0x7010;
+      }
+#endif
+      return;
+      
+    case R_PPC64_DTPREL64:
+#ifndef RTLD_BOOTSTRAP
+      /* During relocation all TLS symbols are defined and used.
+       Therefore the offset is already correct.  */
+      *reloc_addr = raw_value - 0x8000;
+#endif
+      return;
+#endif      
 
     case R_PPC64_JMP_SLOT:
 
@@ -601,15 +663,61 @@ elf_machine_rela (struct link_map *map,
 					       value, 0xfffc);
       break;
 
+    case R_PPC64_TPREL16_LO_DS:
+      if (dont_expect ((value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_TPREL16_LO_DS", 
+                            reloc_addr, sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
+    case R_PPC64_DTPREL16_LO_DS:
+      if (dont_expect ((value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_DTPREL16_LO_DS", 
+                            reloc_addr, sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
+    case R_PPC64_GOT_TPREL16_LO_DS:
+      if (dont_expect ((value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_GOT_TPREL16_LO_DS", 
+                            reloc_addr, sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
+    case R_PPC64_GOT_DTPREL16_LO_DS:
+      if (dont_expect ((value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_GOT_DTPREL16_LO_DS", 
+                            reloc_addr, sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
     case R_PPC64_ADDR16_LO:
+    case R_PPC64_TPREL16_LO:
+    case R_PPC64_DTPREL16_LO:
+    case R_PPC64_GOT_TLSGD16_LO:
+    case R_PPC64_GOT_TLSLD16_LO:
       *(Elf64_Half *) reloc_addr = PPC_LO (value);
       break;
 
     case R_PPC64_ADDR16_HI:
+    case R_PPC64_TPREL16_HI:
+    case R_PPC64_DTPREL16_HI:
+    case R_PPC64_GOT_TPREL16_HI:
+    case R_PPC64_GOT_DTPREL16_HI:
+    case R_PPC64_GOT_TLSGD16_HI:
+    case R_PPC64_GOT_TLSLD16_HI:
       *(Elf64_Half *) reloc_addr = PPC_HI (value);
       break;
 
     case R_PPC64_ADDR16_HA:
+    case R_PPC64_TPREL16_HA:
+    case R_PPC64_DTPREL16_HA:
+    case R_PPC64_GOT_TLSGD16_HA:
+    case R_PPC64_GOT_TLSLD16_HA:
       *(Elf64_Half *) reloc_addr = PPC_HA (value);
       break;
 
@@ -690,19 +798,59 @@ elf_machine_rela (struct link_map *map,
 					       value, 0xfffc);
       break;
 
+    case R_PPC64_TPREL16_DS:
+      if (dont_expect ((value + 0x8000) >= 0x10000 || (value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_TPREL16_DS", reloc_addr, 
+                            sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
+    case R_PPC64_DTPREL16_DS:
+      if (dont_expect ((value + 0x8000) >= 0x10000 || (value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_DTPREL16_DS", reloc_addr, 
+                            sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
+    case R_PPC64_GOT_TPREL16_DS:
+      if (dont_expect ((value + 0x8000) >= 0x10000 || (value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_GOT_TPREL16_DS", reloc_addr, 
+                            sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
+    case R_PPC64_GOT_DTPREL16_DS:
+      if (dont_expect ((value + 0x8000) >= 0x10000 || (value & 3) != 0))
+        _dl_reloc_overflow (map, "R_PPC64_GOT_DTPREL16_DS", 
+                            reloc_addr, sym, refsym);
+      *(Elf64_Half *) reloc_addr = BIT_INSERT (*(Elf64_Half *) reloc_addr,
+                                              value, 0xfffc);
+      break;
+
     case R_PPC64_ADDR16_HIGHER:
+    case R_PPC64_TPREL16_HIGHER:
+    case R_PPC64_DTPREL16_HIGHER:
       *(Elf64_Half *) reloc_addr = PPC_HIGHER (value);
       break;
 
     case R_PPC64_ADDR16_HIGHEST:
+    case R_PPC64_TPREL16_HIGHEST:
+    case R_PPC64_DTPREL16_HIGHEST:
       *(Elf64_Half *) reloc_addr = PPC_HIGHEST (value);
       break;
 
     case R_PPC64_ADDR16_HIGHERA:
+    case R_PPC64_TPREL16_HIGHERA:
+    case R_PPC64_DTPREL16_HIGHERA:
       *(Elf64_Half *) reloc_addr = PPC_HIGHERA (value);
       break;
 
     case R_PPC64_ADDR16_HIGHESTA:
+    case R_PPC64_TPREL16_HIGHESTA:
+    case R_PPC64_DTPREL16_HIGHESTA:
       *(Elf64_Half *) reloc_addr = PPC_HIGHESTA (value);
       break;
 
diff --git a/sysdeps/powerpc/powerpc64/dl-tls.h b/sysdeps/powerpc/powerpc64/dl-tls.h
new file mode 100644
index 0000000000..a353bbc4ae
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/dl-tls.h
@@ -0,0 +1,40 @@
+/* Thread-local storage handling in the ELF dynamic linker.  PowerPC64 version.
+   Copyright (C) 2003 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.  */
+
+
+/* Type used for the representation of TLS information in the TOC.  */
+typedef struct
+{
+  unsigned long int ti_module;
+  unsigned long int ti_offset;
+} tls_index;
+
+
+#ifdef SHARED
+
+extern void *__tls_get_addr (tls_index *ti);
+
+/* Dynamic thread vector pointers point 0x8000 past the start of each
+   TLS block.  */
+# define TLS_DTV_OFFSET		0x8000
+
+# define GET_ADDR_OFFSET	(ti->ti_offset + TLS_DTV_OFFSET)
+# define __TLS_GET_ADDR(__ti)	(__tls_get_addr (__ti) - TLS_DTV_OFFSET)
+
+#endif