/* MIPS ELF support for BFD.
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+ 2003, 2004, 2005, 2008, 2009
Free Software Foundation, Inc.
By Ian Lance Taylor, Cygnus Support, <ian@cygnus.com>, from
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. */
RELOC_NUMBER (R_MIPS_PJUMP, 35)
RELOC_NUMBER (R_MIPS_RELGOT, 36)
RELOC_NUMBER (R_MIPS_JALR, 37)
- RELOC_NUMBER (R_MIPS_max, 38)
+ /* TLS relocations. */
+ RELOC_NUMBER (R_MIPS_TLS_DTPMOD32, 38)
+ RELOC_NUMBER (R_MIPS_TLS_DTPREL32, 39)
+ RELOC_NUMBER (R_MIPS_TLS_DTPMOD64, 40)
+ RELOC_NUMBER (R_MIPS_TLS_DTPREL64, 41)
+ RELOC_NUMBER (R_MIPS_TLS_GD, 42)
+ RELOC_NUMBER (R_MIPS_TLS_LDM, 43)
+ RELOC_NUMBER (R_MIPS_TLS_DTPREL_HI16, 44)
+ RELOC_NUMBER (R_MIPS_TLS_DTPREL_LO16, 45)
+ RELOC_NUMBER (R_MIPS_TLS_GOTTPREL, 46)
+ RELOC_NUMBER (R_MIPS_TLS_TPREL32, 47)
+ RELOC_NUMBER (R_MIPS_TLS_TPREL64, 48)
+ RELOC_NUMBER (R_MIPS_TLS_TPREL_HI16, 49)
+ RELOC_NUMBER (R_MIPS_TLS_TPREL_LO16, 50)
+ 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)
RELOC_NUMBER (R_MIPS16_GPREL, 101)
- /* These are GNU extensions to handle embedded-pic. */
+ RELOC_NUMBER (R_MIPS16_GOT16, 102)
+ RELOC_NUMBER (R_MIPS16_CALL16, 103)
+ 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
+ compatibility. (GCC stopped using it in May, 2004.) */
RELOC_NUMBER (R_MIPS_PC32, 248)
- RELOC_NUMBER (R_MIPS_PC64, 249)
+ /* FIXME: this relocation is used internally by gas. */
RELOC_NUMBER (R_MIPS_GNU_REL16_S2, 250)
- RELOC_NUMBER (R_MIPS_GNU_REL_LO16, 251)
- RELOC_NUMBER (R_MIPS_GNU_REL_HI16, 252)
/* These are GNU extensions to enable C++ vtable garbage collection. */
RELOC_NUMBER (R_MIPS_GNU_VTINHERIT, 253)
RELOC_NUMBER (R_MIPS_GNU_VTENTRY, 254)
position independent code. */
#define EF_MIPS_CPIC 0x00000004
+/* ??? Unknown flag, set in IRIX 6's BSDdup2.o in libbsd.a. */
+#define EF_MIPS_XGOT 0x00000008
+
/* Code in file uses UCODE (obsolete) */
#define EF_MIPS_UCODE 0x00000010
/* -mips64 code. */
#define E_MIPS_ARCH_64 0x60000000
+/* -mips32r2 code. */
+#define E_MIPS_ARCH_32R2 0x70000000
+
+/* -mips64r2 code. */
+#define E_MIPS_ARCH_64R2 0x80000000
+
/* The ABI of the file. Also see EF_MIPS_ABI2 above. */
#define EF_MIPS_ABI 0x0000F000
#define E_MIPS_MACH_4010 0x00820000
#define E_MIPS_MACH_4100 0x00830000
#define E_MIPS_MACH_4650 0x00850000
+#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
/* 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. */
/* MIPS ELF .reginfo swapping routines. */
extern void bfd_mips_elf32_swap_reginfo_in
- PARAMS ((bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *));
+ (bfd *, const Elf32_External_RegInfo *, Elf32_RegInfo *);
extern void bfd_mips_elf32_swap_reginfo_out
- PARAMS ((bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *));
+ (bfd *, const Elf32_RegInfo *, Elf32_External_RegInfo *);
\f
/* Processor specific section flags. */
/* 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. */
#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
/* MIPS ELF option header swapping routines. */
extern void bfd_mips_elf_swap_options_in
- PARAMS ((bfd *, const Elf_External_Options *, Elf_Internal_Options *));
+ (bfd *, const Elf_External_Options *, Elf_Internal_Options *);
extern void bfd_mips_elf_swap_options_out
- PARAMS ((bfd *, const Elf_Internal_Options *, Elf_External_Options *));
+ (bfd *, const Elf_Internal_Options *, Elf_External_Options *);
/* Values which may appear in the kind field of an Elf_Options
structure. */
/* MIPS ELF reginfo swapping routines. */
extern void bfd_mips_elf64_swap_reginfo_in
- PARAMS ((bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *));
+ (bfd *, const Elf64_External_RegInfo *, Elf64_Internal_RegInfo *);
extern void bfd_mips_elf64_swap_reginfo_out
- PARAMS ((bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *));
+ (bfd *, const Elf64_Internal_RegInfo *, Elf64_External_RegInfo *);
/* Masks for the info work of an ODK_EXCEPTIONS descriptor. */
#define OEX_FPU_MIN 0x1f /* FPEs which must be enabled. */
#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 */
projects / deliverable / binutils-gdb.git / blobdiff