include/elf/

[deliverable/binutils-gdb.git] / include / elf / mips.h

diff --git a/include/elf/mips.h b/include/elf/mips.h
index 472a7c9d2055b74f6412e63ee8c55cffc68cf8fe..e30b0abcce357c09ac5d87ab75b5dcbc94c4d891 100644 (file)
--- a/include/elf/mips.h
+++ b/include/elf/mips.h
@@ -1,6 +1,6 @@
 /* MIPS ELF support for BFD.
    Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-   2003, 2004, 2005
+   2003, 2004, 2005, 2008, 2009
    Free Software Foundation, Inc.
 
    By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
@@ -21,7 +21,7 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* This file holds definitions specific to the MIPS ELF ABI.  Note
    that most of this is not actually implemented by BFD.  */
@@ -87,7 +87,8 @@ START_RELOC_NUMBERS (elf_mips_reloc_type)
   RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48)
   RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49)
   RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50)
-  FAKE_RELOC (R_MIPS_max, 51)
+  RELOC_NUMBER (R_MIPS_GLOB_DAT, 51)
+  FAKE_RELOC (R_MIPS_max, 52)
   /* These relocs are used for the mips16.  */
   FAKE_RELOC (R_MIPS16_min, 100)
   RELOC_NUMBER (R_MIPS16_26, 100)
@@ -97,6 +98,9 @@ START_RELOC_NUMBERS (elf_mips_reloc_type)
   RELOC_NUMBER (R_MIPS16_HI16, 104)
   RELOC_NUMBER (R_MIPS16_LO16, 105)
   FAKE_RELOC (R_MIPS16_max, 106)
+  /* These relocations are specific to VxWorks.  */
+  RELOC_NUMBER (R_MIPS_COPY, 126)
+  RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127)
   /* This was a GNU extension used by embedded-PIC.  It was co-opted by
      mips-linux for exception-handling data.  It is no longer used, but
      should continue to be supported by the linker for backward
@@ -209,9 +213,14 @@ END_RELOC_NUMBERS (R_MIPS_maxext)
 #define E_MIPS_MACH_4120       0x00870000
 #define E_MIPS_MACH_4111       0x00880000
 #define E_MIPS_MACH_SB1         0x008a0000
+#define E_MIPS_MACH_OCTEON     0x008b0000
+#define E_MIPS_MACH_XLR        0x008c0000
+#define E_MIPS_MACH_OCTEON2    0x008d0000
 #define E_MIPS_MACH_5400       0x00910000
 #define E_MIPS_MACH_5500       0x00980000
 #define E_MIPS_MACH_9000       0x00990000
+#define E_MIPS_MACH_LS2E        0x00A00000
+#define E_MIPS_MACH_LS2F        0x00A10000
 \f
 /* Processor specific section indices.  These sections do not actually
    exist.  Symbols with a st_shndx field corresponding to one of these
@@ -219,21 +228,21 @@ END_RELOC_NUMBERS (R_MIPS_maxext)
 
 /* Defined and allocated common symbol.  Value is virtual address.  If
    relocated, alignment must be preserved.  */
-#define SHN_MIPS_ACOMMON       0xff00
+#define SHN_MIPS_ACOMMON       SHN_LORESERVE
 
 /* Defined and allocated text symbol.  Value is virtual address.
    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
-#define SHN_MIPS_TEXT          0xff01
+#define SHN_MIPS_TEXT          (SHN_LORESERVE + 1)
 
 /* Defined and allocated data symbol.  Value is virtual address.
    Occur in the dynamic symbol table of Alpha OSF/1 and Irix 5 executables.  */
-#define SHN_MIPS_DATA          0xff02
+#define SHN_MIPS_DATA          (SHN_LORESERVE + 2)
 
 /* Small common symbol.  */
-#define SHN_MIPS_SCOMMON       0xff03
+#define SHN_MIPS_SCOMMON       (SHN_LORESERVE + 3)
 
 /* Small undefined symbol.  */
-#define SHN_MIPS_SUNDEFINED    0xff04
+#define SHN_MIPS_SUNDEFINED    (SHN_LORESERVE + 4)
 \f
 /* Processor specific section types.  */
 
@@ -655,6 +664,12 @@ extern void bfd_mips_elf32_swap_reginfo_out
 
 /* Address of auxiliary .dynamic.  */
 #define DT_MIPS_AUX_DYNAMIC    0x70000031
+
+/* Address of the base of the PLTGOT.  */
+#define DT_MIPS_PLTGOT         0x70000032
+
+/* Points to the base of a writable PLT.  */
+#define DT_MIPS_RWPLT          0x70000034
 \f
 /* Flags which may appear in a DT_MIPS_FLAGS entry.  */
 
@@ -716,8 +731,31 @@ extern void bfd_mips_elf32_swap_reginfo_out
 #define STO_HIDDEN             STV_HIDDEN
 #define STO_PROTECTED          STV_PROTECTED
 
+/* The MIPS psABI was updated in 2008 with support for PLTs and copy
+   relocs.  There are therefore two types of nonzero SHN_UNDEF functions:
+   PLT entries and traditional MIPS lazy binding stubs.  We mark the former
+   with STO_MIPS_PLT to distinguish them from the latter.  */
+#define STO_MIPS_PLT           0x8
+
+/* This value is used to mark PIC functions in an object that mixes
+   PIC and non-PIC.  */
+#define STO_MIPS_PIC           0x20
+#define ELF_ST_IS_MIPS_PIC(OTHER) \
+  (((OTHER) & ~ELF_ST_VISIBILITY (-1)) == STO_MIPS_PIC)
+#define ELF_ST_SET_MIPS_PIC(OTHER) \
+  (STO_MIPS_PIC | ELF_ST_VISIBILITY (OTHER))
+
 /* This value is used for a mips16 .text symbol.  */
 #define STO_MIPS16             0xf0
+#define ELF_ST_IS_MIPS16(OTHER) (((OTHER) & 0xf0) == STO_MIPS16)
+#define ELF_ST_SET_MIPS16(OTHER) (((OTHER) & ~0xf0) | STO_MIPS16)
+
+/* This bit is used on Irix to indicate a symbol whose definition
+   is optional - if, at final link time, it cannot be found, no
+   error message should be produced.  */
+#define STO_OPTIONAL           (1 << 2)
+/* A macro to examine the STO_OPTIONAL bit.  */
+#define ELF_MIPS_IS_OPTIONAL(other)    ((other) & STO_OPTIONAL)
 \f
 /* The 64-bit MIPS ELF ABI uses an unusual reloc format.  Each
    relocation entry specifies up to three actual relocations, all at
@@ -995,4 +1033,15 @@ extern void bfd_mips_elf64_swap_reginfo_out
 #define OHWA0_R4KEOP_CLEAN     0x00000002
 \f
 
+/* Object attribute tags.  */
+enum
+{
+  /* 0-3 are generic.  */
+  Tag_GNU_MIPS_ABI_FP = 4, /* Value 1 for hard-float -mdouble-float, 2
+                             for hard-float -msingle-float, 3 for
+                             soft-float, 4 for -mips32r2 -mfp64; 0 for
+                             not tagged or not using any ABIs affected
+                             by the differences.  */
+};
+
 #endif /* _ELF_MIPS_H */