bfd/ChangeLog

	* elfxx-mips.c (mips_elf_calculate_relocation): Handle special
	'__gnu_local_gp' symbol used by gas -mno-shared.

	gas/ChangeLog
	* config/tc-mips.c (macro_build_lui): Use '__gnu_local_gp'
	instead of '_gp' for -mno-shared optimization.
	(s_cpload): Ditto.
	(s_abicalls): Document it in the comment.
	(md_show_usage): Document the -mno-shared option.

	gas/testsuite/ChangeLog
	* gas/mips/elf-rel23b.d: Use '__gnu_local_gp' instead of '_gp'
	for -mno-shared optimization.
	* gas/mips/elf-rel25a.d: Ditto.

	ld/testsuite/ChangeLog
	* ld-mips-elf/multi-got-no-shared-1.s,
	ld-mips-elf/multi-got-no-shared-2.s,
	ld-mips-elf/multi-got-no-shared.d: New tests.
	* ld-mips-elf/mips-elf.exp: Run them.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index b2d3a3f..af8d64e 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2005-03-04  David Daney  <ddaney@avtrex.com>
+
+       * elfxx-mips.c (mips_elf_calculate_relocation): Handle special
+       '__gnu_local_gp' symbol used by gas -mno-shared.
+
 2005-03-03  H.J. Lu  <hongjiu.lu@intel.com>
 
        * elf-bfd.h (elf_backend_data): Add "const char *" to

diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index 5c2e5b4..847e7e6 100644 (file)
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -3646,6 +3646,9 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
   bfd_boolean local_p, was_local_p;
   /* TRUE if the symbol referred to by this relocation is "_gp_disp".  */
   bfd_boolean gp_disp_p = FALSE;
+  /* TRUE if the symbol referred to by this relocation is
+     "__gnu_local_gp".  */
+  bfd_boolean gnu_local_gp_p = FALSE;
   Elf_Internal_Shdr *symtab_hdr;
   size_t extsymoff;
   unsigned long r_symndx;
@@ -3742,6 +3745,12 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
 
          gp_disp_p = TRUE;
        }
+      /* See if this is the special _gp symbol.  Note that such a
+        symbol must always be a global symbol.  */
+      else if (strcmp (*namep, "__gnu_local_gp") == 0)
+       gnu_local_gp_p = TRUE;
+
+
       /* If this symbol is defined, calculate its address.  Note that
         _gp_disp is a magic symbol, always implicitly defined by the
         linker, so it's inappropriate to check to see whether or not
@@ -3956,6 +3965,9 @@ mips_elf_calculate_relocation (bfd *abfd, bfd *input_bfd,
       break;
     }
 
+  if (gnu_local_gp_p)
+    symbol = gp;
+  
   /* Figure out what kind of relocation is being performed.  */
   switch (r_type)
     {