diff options
Diffstat (limited to 'include/elf/mips.h')
| -rw-r--r-- | include/elf/mips.h | 84 |
1 files changed, 77 insertions, 7 deletions
diff --git a/include/elf/mips.h b/include/elf/mips.h index c60e8fe24b..db5fa54148 100644 --- a/include/elf/mips.h +++ b/include/elf/mips.h @@ -102,6 +102,48 @@ START_RELOC_NUMBERS (elf_mips_reloc_type) /* These relocations are specific to VxWorks. */ RELOC_NUMBER (R_MIPS_COPY, 126) RELOC_NUMBER (R_MIPS_JUMP_SLOT, 127) + + /* These relocations are specific to microMIPS. */ + FAKE_RELOC (R_MICROMIPS_min, 130) + RELOC_NUMBER (R_MICROMIPS_26_S1, 133) + RELOC_NUMBER (R_MICROMIPS_HI16, 134) + RELOC_NUMBER (R_MICROMIPS_LO16, 135) + RELOC_NUMBER (R_MICROMIPS_GPREL16, 136) /* In Elf 64: + alias R_MICROMIPS_GPREL */ + RELOC_NUMBER (R_MICROMIPS_LITERAL, 137) + RELOC_NUMBER (R_MICROMIPS_GOT16, 138) /* In Elf 64: + alias R_MICROMIPS_GOT */ + RELOC_NUMBER (R_MICROMIPS_PC7_S1, 139) + RELOC_NUMBER (R_MICROMIPS_PC10_S1, 140) + RELOC_NUMBER (R_MICROMIPS_PC16_S1, 141) + RELOC_NUMBER (R_MICROMIPS_CALL16, 142) /* In Elf 64: + alias R_MICROMIPS_CALL */ + RELOC_NUMBER (R_MICROMIPS_GOT_DISP, 145) + RELOC_NUMBER (R_MICROMIPS_GOT_PAGE, 146) + RELOC_NUMBER (R_MICROMIPS_GOT_OFST, 147) + RELOC_NUMBER (R_MICROMIPS_GOT_HI16, 148) + RELOC_NUMBER (R_MICROMIPS_GOT_LO16, 149) + RELOC_NUMBER (R_MICROMIPS_SUB, 150) + RELOC_NUMBER (R_MICROMIPS_HIGHER, 151) + RELOC_NUMBER (R_MICROMIPS_HIGHEST, 152) + RELOC_NUMBER (R_MICROMIPS_CALL_HI16, 153) + RELOC_NUMBER (R_MICROMIPS_CALL_LO16, 154) + RELOC_NUMBER (R_MICROMIPS_SCN_DISP, 155) + RELOC_NUMBER (R_MICROMIPS_JALR, 156) + RELOC_NUMBER (R_MICROMIPS_HI0_LO16, 157) + /* TLS relocations. */ + RELOC_NUMBER (R_MICROMIPS_TLS_GD, 162) + RELOC_NUMBER (R_MICROMIPS_TLS_LDM, 163) + RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_HI16, 164) + RELOC_NUMBER (R_MICROMIPS_TLS_DTPREL_LO16, 165) + RELOC_NUMBER (R_MICROMIPS_TLS_GOTTPREL, 166) + RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_HI16, 169) + RELOC_NUMBER (R_MICROMIPS_TLS_TPREL_LO16, 170) + /* microMIPS GP- and PC-relative relocations. */ + RELOC_NUMBER (R_MICROMIPS_GPREL7_S2, 172) + RELOC_NUMBER (R_MICROMIPS_PC23_S2, 173) + FAKE_RELOC (R_MICROMIPS_max, 174) + /* 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 @@ -147,6 +189,9 @@ END_RELOC_NUMBERS (R_MIPS_maxext) /* Use MIPS-16 ISA extensions */ #define EF_MIPS_ARCH_ASE_M16 0x04000000 +/* Use MICROMIPS ISA extensions. */ +#define EF_MIPS_ARCH_ASE_MICROMIPS 0x02000000 + /* Indicates code compiled for a 64-bit machine in 32-bit mode. (regs are 32-bits wide.) */ #define EF_MIPS_32BITMODE 0x00000100 @@ -733,24 +778,49 @@ extern void bfd_mips_elf32_swap_reginfo_out #define STO_HIDDEN STV_HIDDEN #define STO_PROTECTED STV_PROTECTED +/* Two topmost bits denote the MIPS ISA for .text symbols: + + 00 -- standard MIPS code, + + 10 -- microMIPS code, + + 11 -- MIPS16 code; requires the following two bits to be set too. + Note that one of the MIPS16 bits overlaps with STO_MIPS_PIC. See below + for details. */ +#define STO_MIPS_ISA (3 << 6) + +/* The mask spanning the rest of MIPS psABI flags. At most one is expected + to be set except for STO_MIPS16. */ +#define STO_MIPS_FLAGS (~(STO_MIPS_ISA | ELF_ST_VISIBILITY (-1))) + /* 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 +#define ELF_ST_IS_MIPS_PLT(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PLT) +#define ELF_ST_SET_MIPS_PLT(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PLT) /* This value is used to mark PIC functions in an object that mixes - PIC and non-PIC. */ + PIC and non-PIC. Note that this bit overlaps with STO_MIPS16, + although MIPS16 symbols are never considered to be MIPS_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)) +#define ELF_ST_IS_MIPS_PIC(other) (((other) & STO_MIPS_FLAGS) == STO_MIPS_PIC) +#define ELF_ST_SET_MIPS_PIC(other) (((other) & ~STO_MIPS_FLAGS) | STO_MIPS_PIC) /* 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) +#define ELF_ST_IS_MIPS16(other) (((other) & STO_MIPS16) == STO_MIPS16) +#define ELF_ST_SET_MIPS16(other) ((other) | STO_MIPS16) + +/* This value is used for a microMIPS .text symbol. To distinguish from + STO_MIPS16, we set top two bits to be 10 to denote STO_MICROMIPS. The + mask is STO_MIPS_ISA. */ +#define STO_MICROMIPS (2 << 6) +#define ELF_ST_IS_MICROMIPS(other) (((other) & STO_MIPS_ISA) == STO_MICROMIPS) +#define ELF_ST_SET_MICROMIPS(other) (((other) & ~STO_MIPS_ISA) | STO_MICROMIPS) + +/* Whether code compression (either of the MIPS16 or the microMIPS ASEs) + has been indicated for a .text symbol. */ +#define ELF_ST_IS_COMPRESSED(other) \ + (ELF_ST_IS_MIPS16 (other) || ELF_ST_IS_MICROMIPS (other)) /* This bit is used on Irix to indicate a symbol whose definition is optional - if, at final link time, it cannot be found, no |
