X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Felfn32-mips.c;h=71242a55404b21cd500fc4d67acf503a8aca379a;hb=b0eb7e3ea662525545e60fcb092272afaa1cddb2;hp=81d4cf1aec78fbbb402c546399d72ac4b4bff9e3;hpb=1a6c3ca2340cd65673e3135a77e496b8b0e84f0b;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elfn32-mips.c b/bfd/elfn32-mips.c index 81d4cf1aec..71242a5540 100644 --- a/bfd/elfn32-mips.c +++ b/bfd/elfn32-mips.c @@ -1,6 +1,5 @@ /* MIPS-specific support for 32-bit ELF - Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, - 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. + Copyright (C) 1993-2020 Free Software Foundation, Inc. Most of the information added by Ian Lance Taylor, Cygnus Support, . @@ -67,11 +66,9 @@ static bfd_reloc_status_type mips16_gprel_reloc (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup (bfd *, bfd_reloc_code_real_type); -static reloc_howto_type *mips_elf_n32_rtype_to_howto - (unsigned int, bfd_boolean); -static void mips_info_to_howto_rel +static bfd_boolean mips_info_to_howto_rel (bfd *, arelent *, Elf_Internal_Rela *); -static void mips_info_to_howto_rela +static bfd_boolean mips_info_to_howto_rela (bfd *, arelent *, Elf_Internal_Rela *); static bfd_boolean mips_elf_sym_is_global (bfd *, asymbol *); @@ -81,11 +78,15 @@ static bfd_boolean elf32_mips_grok_prstatus (bfd *, Elf_Internal_Note *); static bfd_boolean elf32_mips_grok_psinfo (bfd *, Elf_Internal_Note *); +static bfd_boolean elf_n32_mips_grok_freebsd_prstatus + (bfd *, Elf_Internal_Note *); static irix_compat_t elf_n32_mips_irix_compat (bfd *); +static bfd_boolean mips_elf_n32_mkobject + (bfd *); -extern const bfd_target bfd_elf32_nbigmips_vec; -extern const bfd_target bfd_elf32_nlittlemips_vec; +extern const bfd_target mips_elf32_n_be_vec; +extern const bfd_target mips_elf32_n_le_vec; /* Nonzero if ABFD is using the N32 ABI. */ #define ABI_N32_P(abfd) \ @@ -109,7 +110,7 @@ static reloc_howto_type elf_mips_howto_table_rel[] = /* No relocation. */ HOWTO (R_MIPS_NONE, /* type */ 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ + 3, /* size (0 = byte, 1 = short, 2 = long) */ 0, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ @@ -174,7 +175,7 @@ static reloc_howto_type elf_mips_howto_table_rel[] = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow + /* This needs complex overflow detection, because the upper four bits must match the PC + 4. */ _bfd_mips_elf_generic_reloc, /* special_function */ @@ -589,7 +590,7 @@ static reloc_howto_type elf_mips_howto_table_rel[] = /* Protected jump conversion. This is an optimization hint. No relocation is required for correctness. */ - HOWTO (R_MIPS_JALR, /* type */ + HOWTO (R_MIPS_JALR, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ @@ -597,7 +598,7 @@ static reloc_howto_type elf_mips_howto_table_rel[] = 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ _bfd_mips_elf_generic_reloc, /* special_function */ - "R_MIPS_JALR", /* name */ + "R_MIPS_JALR", /* name */ FALSE, /* partial_inplace */ 0x00000000, /* src_mask */ 0x00000000, /* dst_mask */ @@ -771,6 +772,100 @@ static reloc_howto_type elf_mips_howto_table_rel[] = 0x0, /* src_mask */ 0xffffffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (52), + EMPTY_HOWTO (53), + EMPTY_HOWTO (54), + EMPTY_HOWTO (55), + EMPTY_HOWTO (56), + EMPTY_HOWTO (57), + EMPTY_HOWTO (58), + EMPTY_HOWTO (59), + + HOWTO (R_MIPS_PC21_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 21, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC21_S2", /* name */ + TRUE, /* partial_inplace */ + 0x001fffff, /* src_mask */ + 0x001fffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC26_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC26_S2", /* name */ + TRUE, /* partial_inplace */ + 0x03ffffff, /* src_mask */ + 0x03ffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC18_S3, /* type */ + 3, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 18, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC18_S3", /* name */ + TRUE, /* partial_inplace */ + 0x0003ffff, /* src_mask */ + 0x0003ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC19_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 19, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC19_S2", /* name */ + TRUE, /* partial_inplace */ + 0x0007ffff, /* src_mask */ + 0x0007ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCHI16, /* type */ + 16, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCHI16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCLO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCLO16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + }; /* The relocation table used for SHT_RELA sections. */ @@ -1277,7 +1372,7 @@ static reloc_howto_type elf_mips_howto_table_rela[] = /* Protected jump conversion. This is an optimization hint. No relocation is required for correctness. */ - HOWTO (R_MIPS_JALR, /* type */ + HOWTO (R_MIPS_JALR, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ @@ -1285,7 +1380,7 @@ static reloc_howto_type elf_mips_howto_table_rela[] = 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ _bfd_mips_elf_generic_reloc, /* special_function */ - "R_MIPS_JALR", /* name */ + "R_MIPS_JALR", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ 0, /* dst_mask */ @@ -1459,6 +1554,100 @@ static reloc_howto_type elf_mips_howto_table_rela[] = 0x0, /* src_mask */ 0xffffffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (52), + EMPTY_HOWTO (53), + EMPTY_HOWTO (54), + EMPTY_HOWTO (55), + EMPTY_HOWTO (56), + EMPTY_HOWTO (57), + EMPTY_HOWTO (58), + EMPTY_HOWTO (59), + + HOWTO (R_MIPS_PC21_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 21, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC21_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x001fffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC26_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC26_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x03ffffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC18_S3, /* type */ + 3, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 18, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC18_S3", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0003ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PC19_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 19, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC19_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0007ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCHI16, /* type */ + 16, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCHI16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + + HOWTO (R_MIPS_PCLO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PCLO16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ + }; static reloc_howto_type elf_mips16_howto_table_rel[] = @@ -1471,7 +1660,7 @@ static reloc_howto_type elf_mips16_howto_table_rel[] = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow + /* This needs complex overflow detection, because the upper four bits must match the PC. */ _bfd_mips_elf_generic_reloc, /* special_function */ @@ -1493,7 +1682,7 @@ static reloc_howto_type elf_mips16_howto_table_rel[] = "R_MIPS16_GPREL", /* name */ TRUE, /* partial_inplace */ 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ + 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* A MIPS16 reference to the global offset table. */ @@ -1508,7 +1697,7 @@ static reloc_howto_type elf_mips16_howto_table_rel[] = "R_MIPS16_GOT16", /* name */ TRUE, /* partial_inplace */ 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ + 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* A MIPS16 call through the global offset table. */ @@ -1523,7 +1712,7 @@ static reloc_howto_type elf_mips16_howto_table_rel[] = "R_MIPS16_CALL16", /* name */ TRUE, /* partial_inplace */ 0x0000ffff, /* src_mask */ - 0x0000ffff, /* dst_mask */ + 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* MIPS16 high 16 bits of symbol value. */ @@ -1660,6 +1849,21 @@ static reloc_howto_type elf_mips16_howto_table_rel[] = 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + /* MIPS16 16-bit PC-relative branch offset. */ + HOWTO (R_MIPS16_PC16_S1, /* type */ + 1, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS16_PC16_S1", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ }; static reloc_howto_type elf_mips16_howto_table_rela[] = @@ -1672,7 +1876,7 @@ static reloc_howto_type elf_mips16_howto_table_rela[] = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow + /* This needs complex overflow detection, because the upper four bits must match the PC. */ _bfd_mips_elf_generic_reloc, /* special_function */ @@ -1694,7 +1898,7 @@ static reloc_howto_type elf_mips16_howto_table_rela[] = "R_MIPS16_GPREL", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ + 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* A MIPS16 reference to the global offset table. */ @@ -1709,7 +1913,7 @@ static reloc_howto_type elf_mips16_howto_table_rela[] = "R_MIPS16_GOT16", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ + 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* A MIPS16 call through the global offset table. */ @@ -1724,7 +1928,7 @@ static reloc_howto_type elf_mips16_howto_table_rela[] = "R_MIPS16_CALL16", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ - 0x0000ffff, /* dst_mask */ + 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ /* MIPS16 high 16 bits of symbol value. */ @@ -1861,6 +2065,21 @@ static reloc_howto_type elf_mips16_howto_table_rela[] = 0, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + /* MIPS16 16-bit PC-relative branch offset. */ + HOWTO (R_MIPS16_PC16_S1, /* type */ + 1, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS16_PC16_S1", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + TRUE), /* pcrel_offset */ }; static reloc_howto_type elf_micromips_howto_table_rel[] = @@ -1877,7 +2096,7 @@ static reloc_howto_type elf_micromips_howto_table_rel[] = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow + /* This needs complex overflow detection, because the upper four bits must match the PC. */ _bfd_mips_elf_generic_reloc, /* special_function */ @@ -2149,113 +2368,304 @@ static reloc_howto_type elf_micromips_howto_table_rel[] = 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ -}; -static reloc_howto_type elf_micromips_howto_table_rela[] = -{ - EMPTY_HOWTO (130), - EMPTY_HOWTO (131), - EMPTY_HOWTO (132), + /* Section displacement. */ + HOWTO (R_MICROMIPS_SCN_DISP, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_SCN_DISP", /* name */ + TRUE, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + FALSE), /* pcrel_offset */ - /* 26 bit jump address. */ - HOWTO (R_MICROMIPS_26_S1, /* type */ - 1, /* rightshift */ + /* Protected jump conversion. This is an optimization hint. No + relocation is required for correctness. */ + HOWTO (R_MICROMIPS_JALR, /* type */ + 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ + 32, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - /* This needs complex overflow - detection, because the upper four - bits must match the PC. */ _bfd_mips_elf_generic_reloc, /* special_function */ - "R_MICROMIPS_26_S1", /* name */ + "R_MICROMIPS_JALR", /* name */ FALSE, /* partial_inplace */ 0, /* src_mask */ - 0x3ffffff, /* dst_mask */ + 0x00000000, /* dst_mask */ FALSE), /* pcrel_offset */ - /* High 16 bits of symbol value. */ - HOWTO (R_MICROMIPS_HI16, /* type */ - 16, /* rightshift */ + /* Low 16 bits of symbol value. Note that the high 16 bits of symbol values + must be zero. This is used for relaxation. */ + HOWTO (R_MICROMIPS_HI0_LO16, /* type */ + 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_hi16_reloc, /* special_function */ - "R_MICROMIPS_HI16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_HI0_LO16",/* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* Low 16 bits of symbol value. */ - HOWTO (R_MICROMIPS_LO16, /* type */ + EMPTY_HOWTO (158), + EMPTY_HOWTO (159), + EMPTY_HOWTO (160), + EMPTY_HOWTO (161), + + /* TLS general dynamic variable reference. */ + HOWTO (R_MICROMIPS_TLS_GD, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - _bfd_mips_elf_lo16_reloc, /* special_function */ - "R_MICROMIPS_LO16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_GD", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* GP relative reference. */ - HOWTO (R_MICROMIPS_GPREL16, /* type */ + /* TLS local dynamic variable reference. */ + HOWTO (R_MICROMIPS_TLS_LDM, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf32_gprel16_reloc, /* special_function */ - "R_MICROMIPS_GPREL16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_LDM", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* Reference to literal section. */ - HOWTO (R_MICROMIPS_LITERAL, /* type */ + /* TLS local dynamic offset. */ + HOWTO (R_MICROMIPS_TLS_DTPREL_HI16, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf32_gprel16_reloc, /* special_function */ - "R_MICROMIPS_LITERAL", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_DTPREL_HI16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* Reference to global offset table. */ - HOWTO (R_MICROMIPS_GOT16, /* type */ + /* TLS local dynamic offset. */ + HOWTO (R_MICROMIPS_TLS_DTPREL_LO16, /* type */ 0, /* rightshift */ 2, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ - _bfd_mips_elf_got16_reloc, /* special_function */ - "R_MICROMIPS_GOT16", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_DTPREL_LO16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* This is for microMIPS branches. */ - HOWTO (R_MICROMIPS_PC7_S1, /* type */ - 1, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 7, /* bitsize */ - TRUE, /* pc_relative */ + /* TLS thread pointer offset. */ + HOWTO (R_MICROMIPS_TLS_GOTTPREL, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_GOTTPREL", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (167), + EMPTY_HOWTO (168), + + /* TLS thread pointer offset. */ + HOWTO (R_MICROMIPS_TLS_TPREL_HI16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_TPREL_HI16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* TLS thread pointer offset. */ + HOWTO (R_MICROMIPS_TLS_TPREL_LO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_TPREL_LO16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (171), + + /* GP- and PC-relative relocations. */ + HOWTO (R_MICROMIPS_GPREL7_S2, /* type */ + 2, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 7, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf32_gprel16_reloc, /* special_function */ + "R_MICROMIPS_GPREL7_S2", /* name */ + TRUE, /* partial_inplace */ + 0x0000007f, /* src_mask */ + 0x0000007f, /* dst_mask */ + FALSE), /* pcrel_offset */ + + HOWTO (R_MICROMIPS_PC23_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 23, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_PC23_S2", /* name */ + TRUE, /* partial_inplace */ + 0x007fffff, /* src_mask */ + 0x007fffff, /* dst_mask */ + TRUE), /* pcrel_offset */ +}; + +static reloc_howto_type elf_micromips_howto_table_rela[] = +{ + EMPTY_HOWTO (130), + EMPTY_HOWTO (131), + EMPTY_HOWTO (132), + + /* 26 bit jump address. */ + HOWTO (R_MICROMIPS_26_S1, /* type */ + 1, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 26, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + /* This needs complex overflow + detection, because the upper four + bits must match the PC. */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_26_S1", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x3ffffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* High 16 bits of symbol value. */ + HOWTO (R_MICROMIPS_HI16, /* type */ + 16, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_hi16_reloc, /* special_function */ + "R_MICROMIPS_HI16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Low 16 bits of symbol value. */ + HOWTO (R_MICROMIPS_LO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_lo16_reloc, /* special_function */ + "R_MICROMIPS_LO16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* GP relative reference. */ + HOWTO (R_MICROMIPS_GPREL16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf32_gprel16_reloc, /* special_function */ + "R_MICROMIPS_GPREL16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Reference to literal section. */ + HOWTO (R_MICROMIPS_LITERAL, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf32_gprel16_reloc, /* special_function */ + "R_MICROMIPS_LITERAL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Reference to global offset table. */ + HOWTO (R_MICROMIPS_GOT16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_got16_reloc, /* special_function */ + "R_MICROMIPS_GOT16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* This is for microMIPS branches. */ + HOWTO (R_MICROMIPS_PC7_S1, /* type */ + 1, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 7, /* bitsize */ + TRUE, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ _bfd_mips_elf_generic_reloc, /* special_function */ @@ -2460,6 +2870,197 @@ static reloc_howto_type elf_micromips_howto_table_rela[] = 0, /* src_mask */ 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ + + /* Section displacement. */ + HOWTO (R_MICROMIPS_SCN_DISP, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_SCN_DISP", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Protected jump conversion. This is an optimization hint. No + relocation is required for correctness. */ + HOWTO (R_MICROMIPS_JALR, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_JALR", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x00000000, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* Low 16 bits of symbol value. Note that the high 16 bits of symbol values + must be zero. This is used for relaxation. */ + HOWTO (R_MICROMIPS_HI0_LO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_HI0_LO16",/* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (158), + EMPTY_HOWTO (159), + EMPTY_HOWTO (160), + EMPTY_HOWTO (161), + + /* TLS general dynamic variable reference. */ + HOWTO (R_MICROMIPS_TLS_GD, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_GD", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* TLS local dynamic variable reference. */ + HOWTO (R_MICROMIPS_TLS_LDM, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_LDM", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* TLS local dynamic offset. */ + HOWTO (R_MICROMIPS_TLS_DTPREL_HI16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_DTPREL_HI16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* TLS local dynamic offset. */ + HOWTO (R_MICROMIPS_TLS_DTPREL_LO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_DTPREL_LO16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* TLS thread pointer offset. */ + HOWTO (R_MICROMIPS_TLS_GOTTPREL, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_GOTTPREL", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (167), + EMPTY_HOWTO (168), + + /* TLS thread pointer offset. */ + HOWTO (R_MICROMIPS_TLS_TPREL_HI16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_TPREL_HI16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + /* TLS thread pointer offset. */ + HOWTO (R_MICROMIPS_TLS_TPREL_LO16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_TLS_TPREL_LO16", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ + + EMPTY_HOWTO (171), + + /* GP- and PC-relative relocations. */ + HOWTO (R_MICROMIPS_GPREL7_S2, /* type */ + 2, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 7, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf32_gprel16_reloc, /* special_function */ + "R_MICROMIPS_GPREL7_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x0000007f, /* dst_mask */ + FALSE), /* pcrel_offset */ + + HOWTO (R_MICROMIPS_PC23_S2, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 23, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MICROMIPS_PC23_S2", /* name */ + FALSE, /* partial_inplace */ + 0, /* src_mask */ + 0x007fffff, /* dst_mask */ + TRUE), /* pcrel_offset */ }; /* GNU extension to record C++ vtable hierarchy */ @@ -2525,6 +3126,23 @@ static reloc_howto_type elf_mips_gnu_rela16_s2 = 0, /* src_mask */ 0x0000ffff, /* dst_mask */ TRUE); /* pcrel_offset */ + +/* 32 bit pc-relative. Used for compact EH tables. */ +static reloc_howto_type elf_mips_gnu_pcrel32 = + HOWTO (R_MIPS_PC32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + TRUE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_PC32", /* name */ + TRUE, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + TRUE); /* pcrel_offset */ + /* Originally a VxWorks extension, but now used for other systems too. */ static reloc_howto_type elf_mips_copy_howto = @@ -2535,11 +3153,11 @@ static reloc_howto_type elf_mips_copy_howto = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ + _bfd_mips_elf_generic_reloc, /* special_function */ "R_MIPS_COPY", /* name */ FALSE, /* partial_inplace */ - 0x0, /* src_mask */ - 0x0, /* dst_mask */ + 0x0, /* src_mask */ + 0x0, /* dst_mask */ FALSE); /* pcrel_offset */ /* Originally a VxWorks extension, but now used for other systems too. */ @@ -2551,12 +3169,29 @@ static reloc_howto_type elf_mips_jump_slot_howto = FALSE, /* pc_relative */ 0, /* bitpos */ complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ + _bfd_mips_elf_generic_reloc, /* special_function */ "R_MIPS_JUMP_SLOT", /* name */ FALSE, /* partial_inplace */ - 0x0, /* src_mask */ - 0x0, /* dst_mask */ + 0x0, /* src_mask */ + 0x0, /* dst_mask */ FALSE); /* pcrel_offset */ + +/* Used in EH tables. */ +static reloc_howto_type elf_mips_eh_howto = + HOWTO (R_MIPS_EH, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS_EH", /* name */ + TRUE, /* partial_inplace */ + 0xffffffff, /* src_mask */ + 0xffffffff, /* dst_mask */ + FALSE); /* pcrel_offset */ + /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a dangerous relocation. */ @@ -2923,7 +3558,13 @@ static const struct elf_reloc_map mips_reloc_map[] = { BFD_RELOC_MIPS_TLS_TPREL32, R_MIPS_TLS_TPREL32 }, { BFD_RELOC_MIPS_TLS_TPREL64, R_MIPS_TLS_TPREL64 }, { BFD_RELOC_MIPS_TLS_TPREL_HI16, R_MIPS_TLS_TPREL_HI16 }, - { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 } + { BFD_RELOC_MIPS_TLS_TPREL_LO16, R_MIPS_TLS_TPREL_LO16 }, + { BFD_RELOC_MIPS_21_PCREL_S2, R_MIPS_PC21_S2 }, + { BFD_RELOC_MIPS_26_PCREL_S2, R_MIPS_PC26_S2 }, + { BFD_RELOC_MIPS_18_PCREL_S3, R_MIPS_PC18_S3 }, + { BFD_RELOC_MIPS_19_PCREL_S2, R_MIPS_PC19_S2 }, + { BFD_RELOC_HI16_S_PCREL, R_MIPS_PCHI16 }, + { BFD_RELOC_LO16_PCREL, R_MIPS_PCLO16 } }; static const struct elf_reloc_map mips16_reloc_map[] = @@ -2942,7 +3583,8 @@ static const struct elf_reloc_map mips16_reloc_map[] = R_MIPS16_TLS_DTPREL_LO16 - R_MIPS16_min }, { BFD_RELOC_MIPS16_TLS_GOTTPREL, R_MIPS16_TLS_GOTTPREL - R_MIPS16_min }, { BFD_RELOC_MIPS16_TLS_TPREL_HI16, R_MIPS16_TLS_TPREL_HI16 - R_MIPS16_min }, - { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min } + { BFD_RELOC_MIPS16_TLS_TPREL_LO16, R_MIPS16_TLS_TPREL_LO16 - R_MIPS16_min }, + { BFD_RELOC_MIPS16_16_PCREL_S1, R_MIPS16_PC16_S1 - R_MIPS16_min } }; static const struct elf_reloc_map micromips_reloc_map[] = @@ -2967,6 +3609,23 @@ static const struct elf_reloc_map micromips_reloc_map[] = { BFD_RELOC_MICROMIPS_HIGHEST, R_MICROMIPS_HIGHEST - R_MICROMIPS_min }, { BFD_RELOC_MICROMIPS_CALL_HI16, R_MICROMIPS_CALL_HI16 - R_MICROMIPS_min }, { BFD_RELOC_MICROMIPS_CALL_LO16, R_MICROMIPS_CALL_LO16 - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_SCN_DISP, R_MICROMIPS_SCN_DISP - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_JALR, R_MICROMIPS_JALR - R_MICROMIPS_min }, + /* There is no BFD reloc for R_MICROMIPS_HI0_LO16. */ + { BFD_RELOC_MICROMIPS_TLS_GD, R_MICROMIPS_TLS_GD - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_TLS_LDM, R_MICROMIPS_TLS_LDM - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_TLS_DTPREL_HI16, + R_MICROMIPS_TLS_DTPREL_HI16 - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_TLS_DTPREL_LO16, + R_MICROMIPS_TLS_DTPREL_LO16 - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_TLS_GOTTPREL, + R_MICROMIPS_TLS_GOTTPREL - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_TLS_TPREL_HI16, + R_MICROMIPS_TLS_TPREL_HI16 - R_MICROMIPS_min }, + { BFD_RELOC_MICROMIPS_TLS_TPREL_LO16, + R_MICROMIPS_TLS_TPREL_LO16 - R_MICROMIPS_min }, + /* There is no BFD reloc for R_MICROMIPS_GPREL7_S2. */ + /* There is no BFD reloc for R_MICROMIPS_PC23_S2. */ }; /* Given a BFD reloc type, return a howto structure. */ @@ -3009,6 +3668,10 @@ bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_vtinherit_howto; case BFD_RELOC_VTABLE_ENTRY: return &elf_mips_gnu_vtentry_howto; + case BFD_RELOC_32_PCREL: + return &elf_mips_gnu_pcrel32; + case BFD_RELOC_MIPS_EH: + return &elf_mips_eh_howto; case BFD_RELOC_MIPS_COPY: return &elf_mips_copy_howto; case BFD_RELOC_MIPS_JUMP_SLOT: @@ -3057,6 +3720,10 @@ bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_rel16_s2; if (strcasecmp (elf_mips_gnu_rela16_s2.name, r_name) == 0) return &elf_mips_gnu_rela16_s2; + if (strcasecmp (elf_mips_gnu_pcrel32.name, r_name) == 0) + return &elf_mips_gnu_pcrel32; + if (strcasecmp (elf_mips_eh_howto.name, r_name) == 0) + return &elf_mips_eh_howto; if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0) return &elf_mips_copy_howto; if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0) @@ -3068,8 +3735,10 @@ bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */ static reloc_howto_type * -mips_elf_n32_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) +mips_elf_n32_rtype_to_howto (bfd *abfd, unsigned int r_type, bfd_boolean rela_p) { + reloc_howto_type *howto = NULL; + switch (r_type) { case R_MIPS_GNU_VTINHERIT: @@ -3081,6 +3750,10 @@ mips_elf_n32_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) return &elf_mips_gnu_rela16_s2; else return &elf_mips_gnu_rel16_s2; + case R_MIPS_PC32: + return &elf_mips_gnu_pcrel32; + case R_MIPS_EH: + return &elf_mips_eh_howto; case R_MIPS_COPY: return &elf_mips_copy_howto; case R_MIPS_JUMP_SLOT: @@ -3089,35 +3762,46 @@ mips_elf_n32_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) if (r_type >= R_MICROMIPS_min && r_type < R_MICROMIPS_max) { if (rela_p) - return &elf_micromips_howto_table_rela[r_type - R_MICROMIPS_min]; + howto = &elf_micromips_howto_table_rela[r_type - R_MICROMIPS_min]; else - return &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min]; + howto = &elf_micromips_howto_table_rel[r_type - R_MICROMIPS_min]; } if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max) { if (rela_p) - return &elf_mips16_howto_table_rela[r_type - R_MIPS16_min]; + howto = &elf_mips16_howto_table_rela[r_type - R_MIPS16_min]; else - return &elf_mips16_howto_table_rel[r_type - R_MIPS16_min]; + howto = &elf_mips16_howto_table_rel[r_type - R_MIPS16_min]; } - BFD_ASSERT (r_type < (unsigned int) R_MIPS_max); - if (rela_p) - return &elf_mips_howto_table_rela[r_type]; - else - return &elf_mips_howto_table_rel[r_type]; - break; + if (r_type < R_MIPS_max) + { + if (rela_p) + howto = &elf_mips_howto_table_rela[r_type]; + else + howto = &elf_mips_howto_table_rel[r_type]; + } + if (howto != NULL && howto->name != NULL) + return howto; + + _bfd_error_handler (_("%pB: unsupported relocation type %#x"), + abfd, r_type); + bfd_set_error (bfd_error_bad_value); + return NULL; } } /* Given a MIPS Elf_Internal_Rel, fill in an arelent structure. */ -static void +static bfd_boolean mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) { unsigned int r_type; r_type = ELF32_R_TYPE (dst->r_info); - cache_ptr->howto = mips_elf_n32_rtype_to_howto (r_type, FALSE); + cache_ptr->howto = mips_elf_n32_rtype_to_howto (abfd, r_type, FALSE); + + if (cache_ptr->howto == NULL) + return FALSE; /* The addend for a GPREL16 or LITERAL relocation comes from the GP value for the object file. We get the addend now, rather than @@ -3126,19 +3810,22 @@ mips_info_to_howto_rel (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) if (((*cache_ptr->sym_ptr_ptr)->flags & BSF_SECTION_SYM) != 0 && (gprel16_reloc_p (r_type) || r_type == (unsigned int) R_MIPS_LITERAL)) cache_ptr->addend = elf_gp (abfd); + + return TRUE; } /* Given a MIPS Elf_Internal_Rela, fill in an arelent structure. */ -static void -mips_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, +static bfd_boolean +mips_info_to_howto_rela (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) { unsigned int r_type; r_type = ELF32_R_TYPE (dst->r_info); - cache_ptr->howto = mips_elf_n32_rtype_to_howto (r_type, TRUE); + cache_ptr->howto = mips_elf_n32_rtype_to_howto (abfd, r_type, TRUE); cache_ptr->addend = dst->r_addend; + return cache_ptr->howto != NULL; } /* Determine whether a symbol is global for the purposes of splitting @@ -3154,8 +3841,8 @@ mips_elf_sym_is_global (bfd *abfd ATTRIBUTE_UNUSED, asymbol *sym) return (sym->flags & BSF_SECTION_SYM) == 0; else return ((sym->flags & (BSF_GLOBAL | BSF_WEAK | BSF_GNU_UNIQUE)) != 0 - || bfd_is_und_section (bfd_get_section (sym)) - || bfd_is_com_section (bfd_get_section (sym))); + || bfd_is_und_section (bfd_asymbol_section (sym)) + || bfd_is_com_section (bfd_asymbol_section (sym))); } /* Set the right machine number for a MIPS ELF file. */ @@ -3165,6 +3852,9 @@ mips_elf_n32_object_p (bfd *abfd) { unsigned long mach; + if (!ABI_N32_P (abfd)) + return FALSE; + /* Irix 5 and 6 are broken. Object file symbol tables are not always sorted correctly such that local symbols precede global symbols, and the sh_info field in the symbol table is not always right. */ @@ -3173,10 +3863,6 @@ mips_elf_n32_object_p (bfd *abfd) mach = _bfd_elf_mips_mach (elf_elfheader (abfd)->e_flags); bfd_default_set_arch_mach (abfd, bfd_arch_mips, mach); - - if (! ABI_N32_P(abfd)) - return FALSE; - return TRUE; } @@ -3194,10 +3880,10 @@ elf32_mips_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) case 440: /* Linux/MIPS N32 */ /* pr_cursig */ - elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); + elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); /* pr_pid */ - elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24); + elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); /* pr_reg */ offset = 72; @@ -3220,9 +3906,11 @@ elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) return FALSE; case 128: /* Linux/MIPS elf_prpsinfo */ - elf_tdata (abfd)->core_program + elf_tdata (abfd)->core->pid + = bfd_get_32 (abfd, note->descdata + 16); + elf_tdata (abfd)->core->program = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); - elf_tdata (abfd)->core_command + elf_tdata (abfd)->core->command = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); } @@ -3231,7 +3919,7 @@ elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) implementations, so strip it off if it exists. */ { - char *command = elf_tdata (abfd)->core_command; + char *command = elf_tdata (abfd)->core->command; int n = strlen (command); if (0 < n && command[n - 1] == ' ') @@ -3240,19 +3928,123 @@ elf32_mips_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) return TRUE; } + +static bfd_boolean +elf_n32_mips_grok_freebsd_prstatus (bfd *abfd, Elf_Internal_Note *note) +{ + size_t offset; + size_t size; + size_t min_size; + + /* Compute offset of pr_getregsz, skipping over pr_statussz. + Also compute minimum size of this note. */ + offset = 4 + 4; + min_size = offset + 4 * 2 + 4 + 4 + 4; + + if (note->descsz < min_size) + return FALSE; + + /* Check for version 1 in pr_version. */ + if (bfd_h_get_32 (abfd, (bfd_byte *) note->descdata) != 1) + return FALSE; + + /* Extract size of pr_reg from pr_gregsetsz. */ + /* Skip over pr_gregsetsz and pr_fpregsetsz. */ + size = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); + offset += 4 * 2; + + /* Skip over pr_osreldate. */ + offset += 4; + + /* Read signal from pr_cursig. */ + if (elf_tdata (abfd)->core->signal == 0) + elf_tdata (abfd)->core->signal + = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); + offset += 4; + + /* Read TID from pr_pid. */ + elf_tdata (abfd)->core->lwpid + = bfd_h_get_32 (abfd, (bfd_byte *) note->descdata + offset); + offset += 4; + + /* Padding before pr_reg. */ + offset += 4; + + /* Make sure that there is enough data remaining in the note. */ + if (note->descsz - offset < size) + return FALSE; + + /* Make a ".reg/999" section and a ".reg" section. */ + return _bfd_elfcore_make_pseudosection (abfd, ".reg", + size, note->descpos + offset); +} + +/* Write Linux core PRSTATUS note into core file. */ + +static char * +elf32_mips_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, + ...) +{ + switch (note_type) + { + default: + return NULL; + + case NT_PRPSINFO: + BFD_FAIL (); + return NULL; + + case NT_PRSTATUS: + { + char data[440]; + va_list ap; + long pid; + int cursig; + const void *greg; + + va_start (ap, note_type); + memset (data, 0, 72); + pid = va_arg (ap, long); + bfd_put_32 (abfd, pid, data + 24); + cursig = va_arg (ap, int); + bfd_put_16 (abfd, cursig, data + 12); + greg = va_arg (ap, const void *); + memcpy (data + 72, greg, 360); + memset (data + 432, 0, 8); + va_end (ap); + return elfcore_write_note (abfd, buf, bufsiz, + "CORE", note_type, data, sizeof (data)); + } + } +} /* Depending on the target vector we generate some version of Irix executables or "normal" MIPS ELF ABI executables. */ static irix_compat_t elf_n32_mips_irix_compat (bfd *abfd) { - if ((abfd->xvec == &bfd_elf32_nbigmips_vec) - || (abfd->xvec == &bfd_elf32_nlittlemips_vec)) + if ((abfd->xvec == &mips_elf32_n_be_vec) + || (abfd->xvec == &mips_elf32_n_le_vec)) return ict_irix6; else return ict_none; } +/* Make an n32 MIPS object. We need to set the n32 ABI flag in + `e_flags' to tell the object apart from an o32 object. */ + +static bfd_boolean +mips_elf_n32_mkobject (bfd *abfd) +{ + bfd_boolean ret; + + ret = _bfd_mips_elf_mkobject (abfd); + if (ret) + elf_elfheader (abfd)->e_flags |= EF_MIPS_ABI2; + + return ret; +} + /* ECOFF swapping routines. These are used when dealing with the .mdebug section, which is in the ECOFF debugging format. */ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { @@ -3302,6 +4094,8 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define elf_backend_collect TRUE #define elf_backend_type_change_ok TRUE #define elf_backend_can_gc_sections TRUE +#define elf_backend_gc_mark_extra_sections \ + _bfd_mips_elf_gc_mark_extra_sections #define elf_info_to_howto mips_info_to_howto_rela #define elf_info_to_howto_rel mips_info_to_howto_rel #define elf_backend_sym_is_global mips_elf_sym_is_global @@ -3342,11 +4136,15 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook #define elf_backend_copy_indirect_symbol \ _bfd_mips_elf_copy_indirect_symbol +#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol #define elf_backend_grok_prstatus elf32_mips_grok_prstatus #define elf_backend_grok_psinfo elf32_mips_grok_psinfo +#define elf_backend_grok_freebsd_prstatus \ + elf_n32_mips_grok_freebsd_prstatus #define elf_backend_ecoff_debug_swap &mips_elf32_ecoff_debug_swap #define elf_backend_got_header_size (4 * MIPS_RESERVED_GOTNO) +#define elf_backend_want_dynrelro 1 /* MIPS n32 ELF can use a mixture of REL and RELA, but some Relocations work better/work only in RELA, so we default to this. */ @@ -3380,14 +4178,14 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #define bfd_elf32_bfd_set_private_flags _bfd_mips_elf_set_private_flags #define bfd_elf32_bfd_print_private_bfd_data \ _bfd_mips_elf_print_private_bfd_data -#define bfd_elf32_bfd_relax_section _bfd_mips_relax_section +#define bfd_elf32_mkobject mips_elf_n32_mkobject /* Support for SGI-ish mips targets using n32 ABI. */ -#define TARGET_LITTLE_SYM bfd_elf32_nlittlemips_vec -#define TARGET_LITTLE_NAME "elf32-nlittlemips" -#define TARGET_BIG_SYM bfd_elf32_nbigmips_vec -#define TARGET_BIG_NAME "elf32-nbigmips" +#define TARGET_LITTLE_SYM mips_elf32_n_le_vec +#define TARGET_LITTLE_NAME "elf32-nlittlemips" +#define TARGET_BIG_SYM mips_elf32_n_be_vec +#define TARGET_BIG_NAME "elf32-nbigmips" #define ELF_MAXPAGESIZE 0x10000 #define ELF_COMMONPAGESIZE 0x1000 @@ -3403,15 +4201,18 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #undef ELF_MAXPAGESIZE #undef ELF_COMMONPAGESIZE -#define TARGET_LITTLE_SYM bfd_elf32_ntradlittlemips_vec -#define TARGET_LITTLE_NAME "elf32-ntradlittlemips" -#define TARGET_BIG_SYM bfd_elf32_ntradbigmips_vec -#define TARGET_BIG_NAME "elf32-ntradbigmips" +#define TARGET_LITTLE_SYM mips_elf32_ntrad_le_vec +#define TARGET_LITTLE_NAME "elf32-ntradlittlemips" +#define TARGET_BIG_SYM mips_elf32_ntrad_be_vec +#define TARGET_BIG_NAME "elf32-ntradbigmips" #define ELF_MAXPAGESIZE 0x10000 #define ELF_COMMONPAGESIZE 0x1000 #define elf32_bed elf32_tradbed +#undef elf_backend_write_core_note +#define elf_backend_write_core_note elf32_mips_write_core_note + /* Include the target file again for this target. */ #include "elf32-target.h" @@ -3423,27 +4224,17 @@ static const struct ecoff_debug_swap mips_elf32_ecoff_debug_swap = { #undef TARGET_BIG_SYM #undef TARGET_BIG_NAME -#define TARGET_LITTLE_SYM bfd_elf32_ntradlittlemips_freebsd_vec +#define TARGET_LITTLE_SYM mips_elf32_ntradfbsd_le_vec #define TARGET_LITTLE_NAME "elf32-ntradlittlemips-freebsd" -#define TARGET_BIG_SYM bfd_elf32_ntradbigmips_freebsd_vec +#define TARGET_BIG_SYM mips_elf32_ntradfbsd_be_vec #define TARGET_BIG_NAME "elf32-ntradbigmips-freebsd" #undef ELF_OSABI #define ELF_OSABI ELFOSABI_FREEBSD -/* The kernel recognizes executables as valid only if they carry a - "FreeBSD" label in the ELF header. So we put this label on all - executables and (for simplicity) also all other object files. */ - -static void -elf_fbsd_post_process_headers (bfd *abfd, struct bfd_link_info *info) -{ - _bfd_elf_set_osabi (abfd, info); -} - -#undef elf_backend_post_process_headers -#define elf_backend_post_process_headers elf_fbsd_post_process_headers #undef elf32_bed #define elf32_bed elf32_fbsd_tradbed +#undef elf_backend_write_core_note + #include "elf32-target.h"