[PATCH] MIPS/BFD: Handle RELA TLS_DTPMOD64 and TLS_TPREL64 relocs

[Maciej W. Rozycki]

Hello,

 I have discovered a problem with `objdump -R' that does not decode names 
for R_MIPS_TLS_DTPMOD64 and R_MIPS_TLS_TPREL64 relocations in dynamic RELA 
sections.  It may have been missed before, because the MIPS linker uses 
the REL format for dynamic relocation sections.  The prelinker however 
converts such sections to RELA.

 An obvious fix follows -- both R_MIPS_TLS_DTPMOD64 and R_MIPS_TLS_TPREL64 
relocations are only used in the dynamic link, so the presence or absence 
of the howtos does not affect the BFD linker; `objdump' however uses these 
tables to decode names of relocations.

 Tested for the mips-linux-gnu target, no regressions.

bfd/
2009-09-01  Maciej W. Rozycki  <macro@codesourcery.com>

	* elf64-mips.c (mips_elf64_howto_table_rela): Add support for
	R_MIPS_TLS_DTPMOD64 and R_MIPS_TLS_TPREL64, replacing the 
	respective stubs.

 OK to apply?

  Maciej

binutils-2.19.51-20090827-mips-reloc-tls64-1.patch
Index: bfd/elf64-mips.c
===================================================================
--- bfd/elf64-mips.c
+++ bfd/elf64-mips.c
@@ -1328,7 +1328,20 @@ static reloc_howto_type mips_elf64_howto
   /* TLS relocations.  */
   EMPTY_HOWTO (R_MIPS_TLS_DTPMOD32),
   EMPTY_HOWTO (R_MIPS_TLS_DTPREL32),
-  EMPTY_HOWTO (R_MIPS_TLS_DTPMOD64),
+
+  HOWTO (R_MIPS_TLS_DTPMOD64,	/* type */
+	 0,			/* rightshift */
+	 4,			/* size (0 = byte, 1 = short, 2 = long) */
+	 64,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 _bfd_mips_elf_generic_reloc, /* special_function */
+	 "R_MIPS_TLS_DTPMOD64", /* name */
+	 TRUE,			/* partial_inplace */
+	 MINUS_ONE,		/* src_mask */
+	 MINUS_ONE,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
 
   HOWTO (R_MIPS_TLS_DTPREL64,	/* type */
 	 0,			/* rightshift */
@@ -1419,8 +1432,22 @@ static reloc_howto_type mips_elf64_howto
 	 0x0000ffff,		/* dst_mask */
 	 FALSE),		/* pcrel_offset */
 
+  /* TLS IE dynamic relocations.  */
   EMPTY_HOWTO (R_MIPS_TLS_TPREL32),
-  EMPTY_HOWTO (R_MIPS_TLS_TPREL64),
+
+  HOWTO (R_MIPS_TLS_TPREL64,	/* type */
+	 0,			/* rightshift */
+	 4,			/* size (0 = byte, 1 = short, 2 = long) */
+	 64,			/* bitsize */
+	 FALSE,			/* pc_relative */
+	 0,			/* bitpos */
+	 complain_overflow_dont, /* complain_on_overflow */
+	 _bfd_mips_elf_generic_reloc, /* special_function */
+	 "R_MIPS_TLS_TPREL64",	/* name */
+	 TRUE,			/* partial_inplace */
+	 MINUS_ONE,		/* src_mask */
+	 MINUS_ONE,		/* dst_mask */
+	 FALSE),		/* pcrel_offset */
 
   /* TLS thread pointer offset.  */
   HOWTO (R_MIPS_TLS_TPREL_HI16,	/* type */