* elf-bfd.h (struct elf_backend_data): Reorder collect and

        type_change_ok; add sign_extend_vma.
        * elf32-mips.c (elf_backend_sign_extend_vma): Define.
        * elfcode.h (elf_swap_symbol_in): Mind be->sign_extend_vma.
        (elf_swap_shdr_in, elf_swap_phdr_in): Likewise.
        * elfxx-target.h (elf_backend_sign_extend_vma): Default.
        (elfNN_bed): Follow struture changes.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index a138c4712dce9be3bed4a56f901b4742e9dda4e7..af1173c147620c47c64ba9eba28d69034fc9e1e9 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,13 @@
+1999-11-17  Richard Henderson  <rth@cygnus.com>
+
+       * elf-bfd.h (struct elf_backend_data): Reorder collect and
+       type_change_ok; add sign_extend_vma.
+       * elf32-mips.c (elf_backend_sign_extend_vma): Define.
+       * elfcode.h (elf_swap_symbol_in): Mind be->sign_extend_vma.
+       (elf_swap_shdr_in, elf_swap_phdr_in): Likewise.
+       * elfxx-target.h (elf_backend_sign_extend_vma): Default.
+       (elfNN_bed): Follow struture changes.
+
 1999-11-09  Ian Lance Taylor  <ian@zembu.com>
 
        * libbfd.c (bfd_read): Check result of read against desired result

diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
index 1868cb675940d5bb7c4853c9df67aa63c2acc6cf..8256b2f6122d978a8c613e37788189c5cf0f05b3 100644 (file)
--- a/bfd/elf-bfd.h
+++ b/bfd/elf-bfd.h
@@ -332,18 +332,6 @@ struct elf_backend_data
   /* The maximum page size for this backend.  */
   bfd_vma maxpagesize;
 
-  /* This is true if the linker should act like collect and gather
-     global constructors and destructors by name.  This is true for
-     MIPS ELF because the Irix 5 tools can not handle the .init
-     section.  */
-  boolean collect;
-
-  /* This is true if the linker should ignore changes to the type of a
-     symbol.  This is true for MIPS ELF because some Irix 5 objects
-     record undefined functions as STT_OBJECT although the definitions
-     are STT_FUNC.  */
-  boolean type_change_ok;
-
   /* A function to translate an ELF RELA relocation to a BFD arelent
      structure.  */
   void (*elf_info_to_howto) PARAMS ((bfd *, arelent *,
@@ -618,6 +606,18 @@ struct elf_backend_data
   bfd_vma got_header_size;
   bfd_vma plt_header_size;
 
+  /* This is true if the linker should act like collect and gather
+     global constructors and destructors by name.  This is true for
+     MIPS ELF because the Irix 5 tools can not handle the .init
+     section.  */
+  unsigned collect : 1;
+
+  /* This is true if the linker should ignore changes to the type of a
+     symbol.  This is true for MIPS ELF because some Irix 5 objects
+     record undefined functions as STT_OBJECT although the definitions
+     are STT_FUNC.  */
+  unsigned type_change_ok : 1;
+
   /* Whether the backend may use REL relocations.  (Some backends use
      both REL and RELA relocations, and this flag is set for those
      backends.)  */
@@ -635,6 +635,10 @@ struct elf_backend_data
      section.  */   
   unsigned default_use_rela_p : 1;
 
+  /* True if addresses "naturally" sign extend.  This is used when
+     swapping in from Elf32 when BFD64.  */
+  unsigned sign_extend_vma : 1;
+
   unsigned want_got_plt : 1;
   unsigned plt_readonly : 1;
   unsigned want_plt_sym : 1;

diff --git a/bfd/elf32-mips.c b/bfd/elf32-mips.c
index 0e7dd0850028ef11d5575662fda3059820a44603..fe8686264174bbdfcdf8ccdc1c7f973620d76ef3 100644 (file)
--- a/bfd/elf32-mips.c
+++ b/bfd/elf32-mips.c
@@ -8809,6 +8809,7 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap =
 #define elf_backend_collect            true
 #define elf_backend_type_change_ok     true
 #define elf_backend_can_gc_sections    true
+#define elf_backend_sign_extend_vma    true
 #define elf_info_to_howto              mips_info_to_howto_rela
 #define elf_info_to_howto_rel          mips_info_to_howto_rel
 #define elf_backend_sym_is_global      mips_elf_sym_is_global

diff --git a/bfd/elfcode.h b/bfd/elfcode.h
index 1f75fb00ed922f192776232b7a3a62a5f54e2cc1..c5edf9b82507c2638848c0e0075c89544fd0f062 100644 (file)
--- a/bfd/elfcode.h
+++ b/bfd/elfcode.h
@@ -207,8 +207,13 @@ elf_swap_symbol_in (abfd, src, dst)
      const Elf_External_Sym *src;
      Elf_Internal_Sym *dst;
 {
+  int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma;
+
   dst->st_name = bfd_h_get_32 (abfd, (bfd_byte *) src->st_name);
-  dst->st_value = get_word (abfd, (bfd_byte *) src->st_value);
+  if (signed_vma)
+    dst->st_value = get_signed_word (abfd, (bfd_byte *) src->st_value);
+  else
+    dst->st_value = get_word (abfd, (bfd_byte *) src->st_value);
   dst->st_size = get_word (abfd, (bfd_byte *) src->st_size);
   dst->st_info = bfd_h_get_8 (abfd, (bfd_byte *) src->st_info);
   dst->st_other = bfd_h_get_8 (abfd, (bfd_byte *) src->st_other);
@@ -295,10 +300,15 @@ elf_swap_shdr_in (abfd, src, dst)
      const Elf_External_Shdr *src;
      Elf_Internal_Shdr *dst;
 {
+  int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma;
+
   dst->sh_name = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_name);
   dst->sh_type = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_type);
   dst->sh_flags = get_word (abfd, (bfd_byte *) src->sh_flags);
-  dst->sh_addr = get_word (abfd, (bfd_byte *) src->sh_addr);
+  if (signed_vma)
+    dst->sh_addr = get_signed_word (abfd, (bfd_byte *) src->sh_addr);
+  else
+    dst->sh_addr = get_word (abfd, (bfd_byte *) src->sh_addr);
   dst->sh_offset = get_word (abfd, (bfd_byte *) src->sh_offset);
   dst->sh_size = get_word (abfd, (bfd_byte *) src->sh_size);
   dst->sh_link = bfd_h_get_32 (abfd, (bfd_byte *) src->sh_link);
@@ -341,11 +351,21 @@ elf_swap_phdr_in (abfd, src, dst)
      const Elf_External_Phdr *src;
      Elf_Internal_Phdr *dst;
 {
+  int signed_vma = get_elf_backend_data (abfd)->sign_extend_vma;
+
   dst->p_type = bfd_h_get_32 (abfd, (bfd_byte *) src->p_type);
   dst->p_flags = bfd_h_get_32 (abfd, (bfd_byte *) src->p_flags);
   dst->p_offset = get_word (abfd, (bfd_byte *) src->p_offset);
-  dst->p_vaddr = get_word (abfd, (bfd_byte *) src->p_vaddr);
-  dst->p_paddr = get_word (abfd, (bfd_byte *) src->p_paddr);
+  if (signed_vma)
+    {
+      dst->p_vaddr = get_signed_word (abfd, (bfd_byte *) src->p_vaddr);
+      dst->p_paddr = get_signed_word (abfd, (bfd_byte *) src->p_paddr);
+    }
+  else
+    {
+      dst->p_vaddr = get_word (abfd, (bfd_byte *) src->p_vaddr);
+      dst->p_paddr = get_word (abfd, (bfd_byte *) src->p_paddr);
+    }
   dst->p_filesz = get_word (abfd, (bfd_byte *) src->p_filesz);
   dst->p_memsz = get_word (abfd, (bfd_byte *) src->p_memsz);
   dst->p_align = get_word (abfd, (bfd_byte *) src->p_align);

diff --git a/bfd/elfxx-target.h b/bfd/elfxx-target.h
index 3a787a268d3e3d67a7909257756a635550382b2e..2e7579b93bea69c895fab79d8227e787ad51b801 100644 (file)
--- a/bfd/elfxx-target.h
+++ b/bfd/elfxx-target.h
@@ -338,6 +338,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #define elf_backend_size_info _bfd_elfNN_size_info
 #endif
 
+#ifndef elf_backend_sign_extend_vma
+#define elf_backend_sign_extend_vma 0
+#endif
+
 extern const struct elf_size_info _bfd_elfNN_size_info;
 
 static CONST struct elf_backend_data elfNN_bed =
@@ -345,8 +349,6 @@ static CONST struct elf_backend_data elfNN_bed =
   ELF_ARCH,                    /* arch */
   ELF_MACHINE_CODE,            /* elf_machine_code */
   ELF_MAXPAGESIZE,             /* maxpagesize */
-  elf_backend_collect,
-  elf_backend_type_change_ok,
   elf_info_to_howto,
   elf_info_to_howto_rel,
   elf_backend_sym_is_global,
@@ -384,9 +386,12 @@ static CONST struct elf_backend_data elfNN_bed =
   elf_backend_got_symbol_offset,
   elf_backend_got_header_size,
   elf_backend_plt_header_size,
+  elf_backend_collect,
+  elf_backend_type_change_ok,
   elf_backend_may_use_rel_p,
   elf_backend_may_use_rela_p,
   elf_backend_default_use_rela_p,
+  elf_backend_sign_extend_vma,
   elf_backend_want_got_plt,
   elf_backend_plt_readonly,
   elf_backend_want_plt_sym,