X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf64-alpha.c;h=c172c4f23065d2390c95eb967fdf513d7d3f491f;hb=86fb1dece37497b267579ed4f062d280cd5760cd;hp=a4aa3aa0ef5f6fb754b7b2ff5308ed5fa22af117;hpb=2506b5688c22ae1bc610c8a1d7ef979a31b58af9;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf64-alpha.c b/bfd/elf64-alpha.c index a4aa3aa0ef..c172c4f230 100644 --- a/bfd/elf64-alpha.c +++ b/bfd/elf64-alpha.c @@ -1,5 +1,6 @@ /* Alpha specific support for 64-bit ELF - Copyright 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 + Free Software Foundation, Inc. Contributed by Richard Henderson . This file is part of BFD, the Binary File Descriptor library. @@ -34,7 +35,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define NO_COFF_SYMBOLS #define NO_COFF_LINENOS -/* Get the ECOFF swapping routines. Needed for the debug information. */ +/* Get the ECOFF swapping routines. Needed for the debug information. */ #include "coff/internal.h" #include "coff/sym.h" #include "coff/symconst.h" @@ -46,7 +47,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define ECOFF_64 #include "ecoffswap.h" -static boolean elf64_alpha_mkobject PARAMS ((bfd *)); +static int alpha_elf_dynamic_symbol_p + PARAMS((struct elf_link_hash_entry *, struct bfd_link_info *)); static struct bfd_hash_entry * elf64_alpha_link_hash_newfunc PARAMS((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); static struct bfd_link_hash_table * elf64_alpha_bfd_link_hash_table_create @@ -66,14 +68,16 @@ static reloc_howto_type * elf64_alpha_bfd_reloc_type_lookup static void elf64_alpha_info_to_howto PARAMS((bfd *, arelent *, Elf64_Internal_Rela *)); +static boolean elf64_alpha_mkobject + PARAMS((bfd *)); static boolean elf64_alpha_object_p PARAMS((bfd *)); static boolean elf64_alpha_section_from_shdr - PARAMS((bfd *, Elf64_Internal_Shdr *, char *)); + PARAMS((bfd *, Elf64_Internal_Shdr *, const char *)); +static boolean elf64_alpha_section_flags + PARAMS((flagword *, Elf64_Internal_Shdr *)); static boolean elf64_alpha_fake_sections PARAMS((bfd *, Elf64_Internal_Shdr *, asection *)); -static int elf64_alpha_additional_program_headers - PARAMS((bfd *)); static boolean elf64_alpha_create_got_section PARAMS((bfd *, struct bfd_link_info *)); static boolean elf64_alpha_create_dynamic_sections @@ -101,16 +105,28 @@ static void elf64_alpha_merge_gots static boolean elf64_alpha_calc_got_offsets_for_symbol PARAMS ((struct alpha_elf_link_hash_entry *, PTR)); static void elf64_alpha_calc_got_offsets PARAMS ((struct bfd_link_info *)); -static void elf64_alpha_strip_section_from_output PARAMS ((asection *)); static boolean elf64_alpha_size_got_sections - PARAMS ((bfd *, struct bfd_link_info *)); + PARAMS ((struct bfd_link_info *)); +static boolean elf64_alpha_size_plt_section + PARAMS ((struct bfd_link_info *)); +static boolean elf64_alpha_size_plt_section_1 + PARAMS ((struct alpha_elf_link_hash_entry *, PTR)); static boolean elf64_alpha_always_size_sections PARAMS ((bfd *, struct bfd_link_info *)); +static int alpha_dynamic_entries_for_reloc + PARAMS ((int, int, int)); static boolean elf64_alpha_calc_dynrel_sizes PARAMS ((struct alpha_elf_link_hash_entry *, struct bfd_link_info *)); +static boolean elf64_alpha_size_rela_got_section + PARAMS ((struct bfd_link_info *)); +static boolean elf64_alpha_size_rela_got_1 + PARAMS ((struct alpha_elf_link_hash_entry *, struct bfd_link_info *)); static boolean elf64_alpha_add_symbol_hook PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, const char **, flagword *, asection **, bfd_vma *)); +static struct alpha_elf_got_entry *get_got_entry + PARAMS ((bfd *, struct alpha_elf_link_hash_entry *, unsigned long, + unsigned long, bfd_vma)); static boolean elf64_alpha_check_relocs PARAMS((bfd *, struct bfd_link_info *, asection *sec, const Elf_Internal_Rela *)); @@ -118,8 +134,9 @@ static boolean elf64_alpha_adjust_dynamic_symbol PARAMS((struct bfd_link_info *, struct elf_link_hash_entry *)); static boolean elf64_alpha_size_dynamic_sections PARAMS((bfd *, struct bfd_link_info *)); -static boolean elf64_alpha_adjust_dynindx - PARAMS((struct elf_link_hash_entry *, PTR)); +static boolean elf64_alpha_relocate_section_r + PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, + Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); static boolean elf64_alpha_relocate_section PARAMS((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); @@ -130,7 +147,12 @@ static boolean elf64_alpha_finish_dynamic_sections PARAMS((bfd *, struct bfd_link_info *)); static boolean elf64_alpha_final_link PARAMS((bfd *, struct bfd_link_info *)); - +static boolean elf64_alpha_merge_ind_symbols + PARAMS((struct alpha_elf_link_hash_entry *, PTR)); +static Elf_Internal_Rela * elf64_alpha_find_reloc_at_ofs + PARAMS ((Elf_Internal_Rela *, Elf_Internal_Rela *, bfd_vma, int)); +static enum elf_reloc_type_class elf64_alpha_reloc_type_class + PARAMS ((const Elf_Internal_Rela *)); struct alpha_elf_link_hash_entry { @@ -142,11 +164,15 @@ struct alpha_elf_link_hash_entry /* Cumulative flags for all the .got entries. */ int flags; - /* Contexts (LITUSE) in which a literal was referenced. */ -#define ALPHA_ELF_LINK_HASH_LU_ADDR 0x01 -#define ALPHA_ELF_LINK_HASH_LU_MEM 0x02 -#define ALPHA_ELF_LINK_HASH_LU_BYTE 0x04 -#define ALPHA_ELF_LINK_HASH_LU_FUNC 0x08 + /* Contexts in which a literal was referenced. */ +#define ALPHA_ELF_LINK_HASH_LU_ADDR 0x01 +#define ALPHA_ELF_LINK_HASH_LU_MEM 0x02 +#define ALPHA_ELF_LINK_HASH_LU_BYTE 0x04 +#define ALPHA_ELF_LINK_HASH_LU_JSR 0x08 +#define ALPHA_ELF_LINK_HASH_LU_TLSGD 0x10 +#define ALPHA_ELF_LINK_HASH_LU_TLSLDM 0x20 +#define ALPHA_ELF_LINK_HASH_LU_FUNC 0x38 +#define ALPHA_ELF_LINK_HASH_TLS_IE 0x40 /* Used to implement multiple .got subsections. */ struct alpha_elf_got_entry @@ -162,12 +188,20 @@ struct alpha_elf_link_hash_entry /* the .got offset for this entry. */ int got_offset; - int flags; + /* How many references to this entry? */ + int use_count; + + /* The relocation type of this entry. */ + unsigned char reloc_type; - /* An additional flag. */ -#define ALPHA_ELF_GOT_ENTRY_RELOCS_DONE 0x10 + /* How a LITERAL is used. */ + unsigned char flags; - int use_count; + /* Have we initialized the dynamic relocation for this entry? */ + unsigned char reloc_done; + + /* Have we adjusted this entry for SEC_MERGE? */ + unsigned char reloc_xlated; } *got_entries; /* used to count non-got, non-plt relocations for delayed sizing @@ -180,7 +214,10 @@ struct alpha_elf_link_hash_entry asection *srel; /* what kind of relocation? */ - unsigned long rtype; + unsigned int rtype; + + /* is this against read-only section? */ + unsigned int reltext : 1; /* how many did we find? */ unsigned long count; @@ -225,11 +262,46 @@ struct alpha_elf_link_hash_table /* Should we do dynamic things to this symbol? */ -#define alpha_elf_dynamic_symbol_p(h, info) \ - (((info)->shared && !(info)->symbolic && (h)->dynindx != -1) \ - || (((h)->elf_link_hash_flags \ - & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)) \ - == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))) +static int +alpha_elf_dynamic_symbol_p (h, info) + struct elf_link_hash_entry *h; + struct bfd_link_info *info; +{ + if (h == NULL) + return false; + + while (h->root.type == bfd_link_hash_indirect + || h->root.type == bfd_link_hash_warning) + h = (struct elf_link_hash_entry *) h->root.u.i.link; + + if (h->dynindx == -1) + return false; + + if (h->root.type == bfd_link_hash_undefweak + || h->root.type == bfd_link_hash_defweak) + return true; + + switch (ELF_ST_VISIBILITY (h->other)) + { + case STV_DEFAULT: + break; + case STV_HIDDEN: + case STV_INTERNAL: + return false; + case STV_PROTECTED: + if (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) + return false; + break; + } + + if ((info->shared && !info->symbolic) + || ((h->elf_link_hash_flags + & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)) + == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))) + return true; + + return false; +} /* Create an entry in a Alpha ELF linker hash table. */ @@ -277,16 +349,16 @@ elf64_alpha_bfd_link_hash_table_create (abfd) bfd *abfd; { struct alpha_elf_link_hash_table *ret; + bfd_size_type amt = sizeof (struct alpha_elf_link_hash_table); - ret = ((struct alpha_elf_link_hash_table *) - bfd_zalloc (abfd, sizeof (struct alpha_elf_link_hash_table))); + ret = (struct alpha_elf_link_hash_table *) bfd_zmalloc (amt); if (ret == (struct alpha_elf_link_hash_table *) NULL) return NULL; if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, elf64_alpha_link_hash_newfunc)) { - bfd_release (abfd, ret); + free (ret); return NULL; } @@ -316,12 +388,12 @@ struct alpha_elf_obj_tdata /* For every got, this is the section. */ asection *got; - /* For every got, this is it's total number of *entries*. */ - int total_got_entries; + /* For every got, this is it's total number of words. */ + int total_got_size; - /* For every got, this is the sum of the number of *entries* required + /* For every got, this is the sum of the number of words required to hold all of the member object's local got. */ - int n_local_got_entries; + int local_got_size; }; #define alpha_elf_tdata(abfd) \ @@ -331,7 +403,8 @@ static boolean elf64_alpha_mkobject (abfd) bfd *abfd; { - abfd->tdata.any = bfd_zalloc (abfd, sizeof (struct alpha_elf_obj_tdata)); + bfd_size_type amt = sizeof (struct alpha_elf_obj_tdata); + abfd->tdata.any = bfd_zalloc (abfd, amt); if (abfd->tdata.any == NULL) return false; return true; @@ -343,7 +416,8 @@ elf64_alpha_object_p (abfd) { /* Allocate our special target data. */ struct alpha_elf_obj_tdata *new_tdata; - new_tdata = bfd_zalloc (abfd, sizeof (struct alpha_elf_obj_tdata)); + bfd_size_type amt = sizeof (struct alpha_elf_obj_tdata); + new_tdata = bfd_zalloc (abfd, amt); if (new_tdata == NULL) return false; new_tdata->root = *abfd->tdata.elf_obj_data; @@ -357,6 +431,9 @@ elf64_alpha_object_p (abfd) from smaller values. Start with zero, widen, *then* decrement. */ #define MINUS_ONE (((bfd_vma)0) - 1) +#define SKIP_HOWTO(N) \ + HOWTO(N, 0, 0, 0, 0, 0, 0, elf64_alpha_reloc_bad, 0, 0, 0, 0, 0) + static reloc_howto_type elf64_alpha_howto_table[] = { HOWTO (R_ALPHA_NONE, /* type */ @@ -423,7 +500,7 @@ static reloc_howto_type elf64_alpha_howto_table[] = /* Used for an instruction that refers to memory off the GP register. */ HOWTO (R_ALPHA_LITERAL, /* type */ 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ @@ -444,7 +521,7 @@ static reloc_howto_type elf64_alpha_howto_table[] = This does not actually do any relocation. */ HOWTO (R_ALPHA_LITUSE, /* type */ 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 32, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ @@ -504,7 +581,7 @@ static reloc_howto_type elf64_alpha_howto_table[] = /* A hint for a jump to a register. */ HOWTO (R_ALPHA_HINT, /* type */ 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 14, /* bitsize */ true, /* pc_relative */ 0, /* bitpos */ @@ -529,7 +606,7 @@ static reloc_howto_type elf64_alpha_howto_table[] = false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ - false), /* pcrel_offset */ + true), /* pcrel_offset */ /* 32 bit PC relative offset. */ HOWTO (R_ALPHA_SREL32, /* type */ @@ -544,7 +621,7 @@ static reloc_howto_type elf64_alpha_howto_table[] = false, /* partial_inplace */ 0xffffffff, /* src_mask */ 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ + true), /* pcrel_offset */ /* A 64 bit PC relative offset. */ HOWTO (R_ALPHA_SREL64, /* type */ @@ -559,101 +636,24 @@ static reloc_howto_type elf64_alpha_howto_table[] = false, /* partial_inplace */ MINUS_ONE, /* src_mask */ MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Push a value on the reloc evaluation stack. */ - /* Not implemented -- it's dumb. */ - HOWTO (R_ALPHA_OP_PUSH, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "OP_PUSH", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Store the value from the stack at the given address. Store it in - a bitfield of size r_size starting at bit position r_offset. */ - /* Not implemented -- it's dumb. */ - HOWTO (R_ALPHA_OP_STORE, /* type */ - 0, /* rightshift */ - 4, /* size (0 = byte, 1 = short, 2 = long) */ - 64, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "OP_STORE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - MINUS_ONE, /* dst_mask */ - false), /* pcrel_offset */ - - /* Subtract the reloc address from the value on the top of the - relocation stack. */ - /* Not implemented -- it's dumb. */ - HOWTO (R_ALPHA_OP_PSUB, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "OP_PSUB", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* Shift the value on the top of the relocation stack right by the - given value. */ - /* Not implemented -- it's dumb. */ - HOWTO (R_ALPHA_OP_PRSHIFT, /* type */ - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "OP_PRSHIFT", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + true), /* pcrel_offset */ - /* Change the value of GP used by +r_addend until the next GPVALUE or the - end of the input bfd. */ - /* Not implemented -- it's dumb. */ - HOWTO (R_ALPHA_GPVALUE, - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "GPVALUE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + /* Skip 12 - 16; deprecated ECOFF relocs. */ + SKIP_HOWTO (12), + SKIP_HOWTO (13), + SKIP_HOWTO (14), + SKIP_HOWTO (15), + SKIP_HOWTO (16), /* The high 16 bits of the displacement from GP to the target. */ HOWTO (R_ALPHA_GPRELHIGH, 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ + 0, /* special_function */ "GPRELHIGH", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ @@ -663,12 +663,12 @@ static reloc_howto_type elf64_alpha_howto_table[] = /* The low 16 bits of the displacement from GP to the target. */ HOWTO (R_ALPHA_GPRELLOW, 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ + 0, /* special_function */ "GPRELLOW", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ @@ -676,91 +676,27 @@ static reloc_howto_type elf64_alpha_howto_table[] = false), /* pcrel_offset */ /* A 16-bit displacement from the GP to the target. */ - /* XXX: Not implemented. */ - HOWTO (R_ALPHA_IMMED_GP_16, + HOWTO (R_ALPHA_GPREL16, 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ 16, /* bitsize */ false, /* pc_relative */ 0, /* bitpos */ complain_overflow_signed, /* complain_on_overflow */ 0, /* special_function */ - "IMMED_GP_16", /* name */ + "GPREL16", /* name */ false, /* partial_inplace */ 0xffff, /* src_mask */ 0xffff, /* dst_mask */ false), /* pcrel_offset */ - /* The high bits of a 32-bit displacement from the GP to the target; the - low bits are supplied in the subsequent R_ALPHA_IMMED_LO32 relocs. */ - /* XXX: Not implemented. */ - HOWTO (R_ALPHA_IMMED_GP_HI32, - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "IMMED_GP_HI32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* The high bits of a 32-bit displacement to the starting address of the - current section (the relocation target is ignored); the low bits are - supplied in the subsequent R_ALPHA_IMMED_LO32 relocs. */ - /* XXX: Not implemented. */ - HOWTO (R_ALPHA_IMMED_SCN_HI32, - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "IMMED_SCN_HI32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* The high bits of a 32-bit displacement from the previous br, bsr, jsr - or jmp insn (as tagged by a BRADDR or HINT reloc) to the target; the - low bits are supplied by subsequent R_ALPHA_IMMED_LO32 relocs. */ - /* XXX: Not implemented. */ - HOWTO (R_ALPHA_IMMED_BR_HI32, - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "IMMED_BR_HI32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* The low 16 bits of a displacement calculated in a previous HI32 reloc. */ - /* XXX: Not implemented. */ - HOWTO (R_ALPHA_IMMED_LO32, - 0, /* rightshift */ - 0, /* size (0 = byte, 1 = short, 2 = long) */ - 0, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_dont, /* complain_on_overflow */ - elf64_alpha_reloc_bad, /* special_function */ - "IMMED_LO32", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ + /* Skip 20 - 23; deprecated ECOFF relocs. */ + SKIP_HOWTO (20), + SKIP_HOWTO (21), + SKIP_HOWTO (22), + SKIP_HOWTO (23), - /* Misc ELF relocations. */ + /* Misc ELF relocations. */ /* A dynamic relocation to copy the target into our .dynbss section. */ /* Not generated, as all Alpha objects use PIC, so it is not needed. It @@ -823,62 +759,274 @@ static reloc_howto_type elf64_alpha_howto_table[] = false, 0, 0, - true) -}; - -/* A relocation function which doesn't do anything. */ + true), -static bfd_reloc_status_type -elf64_alpha_reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message) - bfd *abfd; - arelent *reloc; - asymbol *sym; - PTR data; - asection *sec; - bfd *output_bfd; - char **error_message; -{ - if (output_bfd) - reloc->address += sec->output_offset; - return bfd_reloc_ok; -} + /* A 21 bit branch that adjusts for gp loads. */ + HOWTO (R_ALPHA_BRSGP, /* type */ + 2, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 21, /* bitsize */ + true, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "BRSGP", /* name */ + false, /* partial_inplace */ + 0x1fffff, /* src_mask */ + 0x1fffff, /* dst_mask */ + true), /* pcrel_offset */ -/* A relocation function used for an unsupported reloc. */ + /* Creates a tls_index for the symbol in the got. */ + HOWTO (R_ALPHA_TLSGD, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "TLSGD", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ -static bfd_reloc_status_type -elf64_alpha_reloc_bad (abfd, reloc, sym, data, sec, output_bfd, error_message) - bfd *abfd; - arelent *reloc; - asymbol *sym; - PTR data; - asection *sec; - bfd *output_bfd; - char **error_message; -{ - if (output_bfd) - reloc->address += sec->output_offset; - return bfd_reloc_notsupported; -} + /* Creates a tls_index for the (current) module in the got. */ + HOWTO (R_ALPHA_TLSLDM, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "TLSLDM", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ -/* Do the work of the GPDISP relocation. */ + /* A dynamic relocation for a DTP module entry. */ + HOWTO (R_ALPHA_DTPMOD64, /* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 64, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + 0, /* special_function */ + "DTPMOD64", /* name */ + false, /* partial_inplace */ + MINUS_ONE, /* src_mask */ + MINUS_ONE, /* dst_mask */ + false), /* pcrel_offset */ -static bfd_reloc_status_type -elf64_alpha_do_reloc_gpdisp (abfd, gpdisp, p_ldah, p_lda) - bfd *abfd; - bfd_vma gpdisp; - bfd_byte *p_ldah; - bfd_byte *p_lda; -{ - bfd_reloc_status_type ret = bfd_reloc_ok; - bfd_vma addend; - unsigned long i_ldah, i_lda; + /* Creates a 64-bit offset in the got for the displacement + from DTP to the target. */ + HOWTO (R_ALPHA_GOTDTPREL, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "GOTDTPREL", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ - i_ldah = bfd_get_32 (abfd, p_ldah); - i_lda = bfd_get_32 (abfd, p_lda); + /* A dynamic relocation for a displacement from DTP to the target. */ + HOWTO (R_ALPHA_DTPREL64, /* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 64, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + 0, /* special_function */ + "DTPREL64", /* name */ + false, /* partial_inplace */ + MINUS_ONE, /* src_mask */ + MINUS_ONE, /* dst_mask */ + false), /* pcrel_offset */ - /* Complain if the instructions are not correct. */ - if (((i_ldah >> 26) & 0x3f) != 0x09 - || ((i_lda >> 26) & 0x3f) != 0x08) + /* The high 16 bits of the displacement from DTP to the target. */ + HOWTO (R_ALPHA_DTPRELHI, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "DTPRELHI", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* The low 16 bits of the displacement from DTP to the target. */ + HOWTO (R_ALPHA_DTPRELLO, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + 0, /* special_function */ + "DTPRELLO", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* A 16-bit displacement from DTP to the target. */ + HOWTO (R_ALPHA_DTPREL16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "DTPREL16", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* Creates a 64-bit offset in the got for the displacement + from TP to the target. */ + HOWTO (R_ALPHA_GOTTPREL, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "GOTTPREL", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* A dynamic relocation for a displacement from TP to the target. */ + HOWTO (R_ALPHA_TPREL64, /* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 64, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + 0, /* special_function */ + "TPREL64", /* name */ + false, /* partial_inplace */ + MINUS_ONE, /* src_mask */ + MINUS_ONE, /* dst_mask */ + false), /* pcrel_offset */ + + /* The high 16 bits of the displacement from TP to the target. */ + HOWTO (R_ALPHA_TPRELHI, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "TPRELHI", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* The low 16 bits of the displacement from TP to the target. */ + HOWTO (R_ALPHA_TPRELLO, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + 0, /* special_function */ + "TPRELLO", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ + + /* A 16-bit displacement from TP to the target. */ + HOWTO (R_ALPHA_TPREL16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_signed, /* complain_on_overflow */ + 0, /* special_function */ + "TPREL16", /* name */ + false, /* partial_inplace */ + 0xffff, /* src_mask */ + 0xffff, /* dst_mask */ + false), /* pcrel_offset */ +}; + +/* A relocation function which doesn't do anything. */ + +static bfd_reloc_status_type +elf64_alpha_reloc_nil (abfd, reloc, sym, data, sec, output_bfd, error_message) + bfd *abfd ATTRIBUTE_UNUSED; + arelent *reloc; + asymbol *sym ATTRIBUTE_UNUSED; + PTR data ATTRIBUTE_UNUSED; + asection *sec; + bfd *output_bfd; + char **error_message ATTRIBUTE_UNUSED; +{ + if (output_bfd) + reloc->address += sec->output_offset; + return bfd_reloc_ok; +} + +/* A relocation function used for an unsupported reloc. */ + +static bfd_reloc_status_type +elf64_alpha_reloc_bad (abfd, reloc, sym, data, sec, output_bfd, error_message) + bfd *abfd ATTRIBUTE_UNUSED; + arelent *reloc; + asymbol *sym ATTRIBUTE_UNUSED; + PTR data ATTRIBUTE_UNUSED; + asection *sec; + bfd *output_bfd; + char **error_message ATTRIBUTE_UNUSED; +{ + if (output_bfd) + reloc->address += sec->output_offset; + return bfd_reloc_notsupported; +} + +/* Do the work of the GPDISP relocation. */ + +static bfd_reloc_status_type +elf64_alpha_do_reloc_gpdisp (abfd, gpdisp, p_ldah, p_lda) + bfd *abfd; + bfd_vma gpdisp; + bfd_byte *p_ldah; + bfd_byte *p_lda; +{ + bfd_reloc_status_type ret = bfd_reloc_ok; + bfd_vma addend; + unsigned long i_ldah, i_lda; + + i_ldah = bfd_get_32 (abfd, p_ldah); + i_lda = bfd_get_32 (abfd, p_lda); + + /* Complain if the instructions are not correct. */ + if (((i_ldah >> 26) & 0x3f) != 0x09 + || ((i_lda >> 26) & 0x3f) != 0x08) ret = bfd_reloc_dangerous; /* Extract the user-supplied offset, mirroring the sign extensions @@ -897,8 +1045,8 @@ elf64_alpha_do_reloc_gpdisp (abfd, gpdisp, p_ldah, p_lda) | (((gpdisp >> 16) + ((gpdisp >> 15) & 1)) & 0xffff)); i_lda = (i_lda & 0xffff0000) | (gpdisp & 0xffff); - bfd_put_32 (abfd, i_ldah, p_ldah); - bfd_put_32 (abfd, i_lda, p_lda); + bfd_put_32 (abfd, (bfd_vma) i_ldah, p_ldah); + bfd_put_32 (abfd, (bfd_vma) i_lda, p_lda); return ret; } @@ -910,7 +1058,7 @@ elf64_alpha_reloc_gpdisp (abfd, reloc_entry, sym, data, input_section, output_bfd, err_msg) bfd *abfd; arelent *reloc_entry; - asymbol *sym; + asymbol *sym ATTRIBUTE_UNUSED; PTR data; asection *input_section; bfd *output_bfd; @@ -961,26 +1109,43 @@ struct elf_reloc_map static const struct elf_reloc_map elf64_alpha_reloc_map[] = { - {BFD_RELOC_NONE, R_ALPHA_NONE}, - {BFD_RELOC_32, R_ALPHA_REFLONG}, - {BFD_RELOC_64, R_ALPHA_REFQUAD}, - {BFD_RELOC_CTOR, R_ALPHA_REFQUAD}, - {BFD_RELOC_GPREL32, R_ALPHA_GPREL32}, - {BFD_RELOC_ALPHA_ELF_LITERAL, R_ALPHA_LITERAL}, - {BFD_RELOC_ALPHA_LITUSE, R_ALPHA_LITUSE}, - {BFD_RELOC_ALPHA_GPDISP, R_ALPHA_GPDISP}, - {BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR}, - {BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT}, - {BFD_RELOC_16_PCREL, R_ALPHA_SREL16}, - {BFD_RELOC_32_PCREL, R_ALPHA_SREL32}, - {BFD_RELOC_64_PCREL, R_ALPHA_SREL64}, + {BFD_RELOC_NONE, R_ALPHA_NONE}, + {BFD_RELOC_32, R_ALPHA_REFLONG}, + {BFD_RELOC_64, R_ALPHA_REFQUAD}, + {BFD_RELOC_CTOR, R_ALPHA_REFQUAD}, + {BFD_RELOC_GPREL32, R_ALPHA_GPREL32}, + {BFD_RELOC_ALPHA_ELF_LITERAL, R_ALPHA_LITERAL}, + {BFD_RELOC_ALPHA_LITUSE, R_ALPHA_LITUSE}, + {BFD_RELOC_ALPHA_GPDISP, R_ALPHA_GPDISP}, + {BFD_RELOC_23_PCREL_S2, R_ALPHA_BRADDR}, + {BFD_RELOC_ALPHA_HINT, R_ALPHA_HINT}, + {BFD_RELOC_16_PCREL, R_ALPHA_SREL16}, + {BFD_RELOC_32_PCREL, R_ALPHA_SREL32}, + {BFD_RELOC_64_PCREL, R_ALPHA_SREL64}, + {BFD_RELOC_ALPHA_GPREL_HI16, R_ALPHA_GPRELHIGH}, + {BFD_RELOC_ALPHA_GPREL_LO16, R_ALPHA_GPRELLOW}, + {BFD_RELOC_GPREL16, R_ALPHA_GPREL16}, + {BFD_RELOC_ALPHA_BRSGP, R_ALPHA_BRSGP}, + {BFD_RELOC_ALPHA_TLSGD, R_ALPHA_TLSGD}, + {BFD_RELOC_ALPHA_TLSLDM, R_ALPHA_TLSLDM}, + {BFD_RELOC_ALPHA_DTPMOD64, R_ALPHA_DTPMOD64}, + {BFD_RELOC_ALPHA_GOTDTPREL16, R_ALPHA_GOTDTPREL}, + {BFD_RELOC_ALPHA_DTPREL64, R_ALPHA_DTPREL64}, + {BFD_RELOC_ALPHA_DTPREL_HI16, R_ALPHA_DTPRELHI}, + {BFD_RELOC_ALPHA_DTPREL_LO16, R_ALPHA_DTPRELLO}, + {BFD_RELOC_ALPHA_DTPREL16, R_ALPHA_DTPREL16}, + {BFD_RELOC_ALPHA_GOTTPREL16, R_ALPHA_GOTTPREL}, + {BFD_RELOC_ALPHA_TPREL64, R_ALPHA_TPREL64}, + {BFD_RELOC_ALPHA_TPREL_HI16, R_ALPHA_TPRELHI}, + {BFD_RELOC_ALPHA_TPREL_LO16, R_ALPHA_TPRELLO}, + {BFD_RELOC_ALPHA_TPREL16, R_ALPHA_TPREL16}, }; /* Given a BFD reloc type, return a HOWTO structure. */ static reloc_howto_type * elf64_alpha_bfd_reloc_type_lookup (abfd, code) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; bfd_reloc_code_real_type code; { const struct elf_reloc_map *i, *e; @@ -998,7 +1163,7 @@ elf64_alpha_bfd_reloc_type_lookup (abfd, code) static void elf64_alpha_info_to_howto (abfd, cache_ptr, dst) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; arelent *cache_ptr; Elf64_Internal_Rela *dst; { @@ -1008,8 +1173,21 @@ elf64_alpha_info_to_howto (abfd, cache_ptr, dst) BFD_ASSERT (r_type < (unsigned int) R_ALPHA_max); cache_ptr->howto = &elf64_alpha_howto_table[r_type]; } + +/* These two relocations create a two-word entry in the got. */ +#define alpha_got_entry_size(r_type) \ + (r_type == R_ALPHA_TLSGD || r_type == R_ALPHA_TLSLDM ? 16 : 8) + +/* This is PT_TLS segment p_vaddr. */ +#define alpha_get_dtprel_base(tlss) \ + ((tlss)->start) + +/* Main program TLS (whose template starts at PT_TLS p_vaddr) + is assigned offset round(16, PT_TLS p_align). */ +#define alpha_get_tprel_base(tlss) \ + ((tlss)->start - align_power ((bfd_vma) 16, (tlss)->align)) -/* These functions do relaxation for Alpha ELF. +/* These functions do relaxation for Alpha ELF. Currently I'm only handling what I can do with existing compiler and assembler support, which means no instructions are removed, @@ -1029,36 +1207,46 @@ elf64_alpha_info_to_howto (abfd, cache_ptr, dst) #define OP_LDQ 0x29 #define OP_BR 0x30 #define OP_BSR 0x34 -#define INSN_UNOP 0x2fe00000 +#define INSN_UNOP 0x2ffe0000 +#define INSN_ADDQ 0x40000400 +#define INSN_RDUNIQ 0x0000009e struct alpha_relax_info { bfd *abfd; asection *sec; bfd_byte *contents; + Elf_Internal_Shdr *symtab_hdr; Elf_Internal_Rela *relocs, *relend; struct bfd_link_info *link_info; - boolean changed_contents; - boolean changed_relocs; + struct elf_link_tls_segment *tls_segment; bfd_vma gp; bfd *gotobj; asection *tsec; - Elf_Internal_Sym *elfsym; struct alpha_elf_link_hash_entry *h; + struct alpha_elf_got_entry **first_gotent; struct alpha_elf_got_entry *gotent; + boolean changed_contents; + boolean changed_relocs; + unsigned char other; }; -static Elf_Internal_Rela * elf64_alpha_relax_with_lituse - PARAMS((struct alpha_relax_info *info, bfd_vma symval, - Elf_Internal_Rela *irel, Elf_Internal_Rela *irelend)); - -static boolean elf64_alpha_relax_without_lituse - PARAMS((struct alpha_relax_info *info, bfd_vma symval, +static boolean elf64_alpha_relax_with_lituse + PARAMS((struct alpha_relax_info *info, bfd_vma symval, Elf_Internal_Rela *irel)); - static bfd_vma elf64_alpha_relax_opt_call PARAMS((struct alpha_relax_info *info, bfd_vma symval)); - +static boolean elf64_alpha_relax_got_load + PARAMS((struct alpha_relax_info *info, bfd_vma symval, + Elf_Internal_Rela *irel, unsigned long)); +static boolean elf64_alpha_relax_gprelhilo + PARAMS((struct alpha_relax_info *info, bfd_vma symval, + Elf_Internal_Rela *irel, boolean)); +static boolean elf64_alpha_relax_tls_get_addr + PARAMS((struct alpha_relax_info *info, bfd_vma symval, + Elf_Internal_Rela *irel, boolean)); +static struct elf_link_tls_segment *elf64_alpha_relax_find_tls_segment + PARAMS((struct alpha_relax_info *, struct elf_link_tls_segment *)); static boolean elf64_alpha_relax_section PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info, boolean *again)); @@ -1071,20 +1259,21 @@ elf64_alpha_find_reloc_at_ofs (rel, relend, offset, type) { while (rel < relend) { - if (rel->r_offset == offset && ELF64_R_TYPE (rel->r_info) == type) + if (rel->r_offset == offset + && ELF64_R_TYPE (rel->r_info) == (unsigned int) type) return rel; ++rel; } return NULL; } -static Elf_Internal_Rela * -elf64_alpha_relax_with_lituse (info, symval, irel, irelend) +static boolean +elf64_alpha_relax_with_lituse (info, symval, irel) struct alpha_relax_info *info; bfd_vma symval; - Elf_Internal_Rela *irel, *irelend; + Elf_Internal_Rela *irel; { - Elf_Internal_Rela *urel; + Elf_Internal_Rela *urel, *irelend = info->relend; int flags, count, i; bfd_signed_vma disp; boolean fits16; @@ -1098,67 +1287,83 @@ elf64_alpha_relax_with_lituse (info, symval, irel, irelend) { ((*_bfd_error_handler) ("%s: %s+0x%lx: warning: LITERAL relocation against unexpected insn", - bfd_get_filename (info->abfd), info->sec->name, - (unsigned long)irel->r_offset)); - return irel; + bfd_archive_filename (info->abfd), info->sec->name, + (unsigned long) irel->r_offset)); + return true; } + /* Can't relax dynamic symbols. */ + if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info)) + return true; + /* Summarize how this particular LITERAL is used. */ for (urel = irel+1, flags = count = 0; urel < irelend; ++urel, ++count) { if (ELF64_R_TYPE (urel->r_info) != R_ALPHA_LITUSE) break; - if (urel->r_addend >= 0 && urel->r_addend <= 3) + if (urel->r_addend <= 3) flags |= 1 << urel->r_addend; } - /* A little preparation for the loop... */ + /* A little preparation for the loop... */ disp = symval - info->gp; - fits16 = (disp >= -(bfd_signed_vma)0x8000 && disp < 0x8000); - fits32 = (disp >= -(bfd_signed_vma)0x80000000 && disp < 0x7fff8000); for (urel = irel+1, i = 0; i < count; ++i, ++urel) { unsigned int insn; + int insn_disp; + bfd_signed_vma xdisp; + insn = bfd_get_32 (info->abfd, info->contents + urel->r_offset); switch (urel->r_addend) { - default: /* 0 = ADDRESS FORMAT */ + case LITUSE_ALPHA_ADDR: + default: /* This type is really just a placeholder to note that all uses cannot be optimized, but to still allow some. */ all_optimized = false; break; - case 1: /* MEM FORMAT */ + case LITUSE_ALPHA_BASE: /* We can always optimize 16-bit displacements. */ + + /* Extract the displacement from the instruction, sign-extending + it if necessary, then test whether it is within 16 or 32 bits + displacement from GP. */ + insn_disp = insn & 0x0000ffff; + if (insn_disp & 0x8000) + insn_disp |= ~0xffff; /* Negative: sign-extend. */ + + xdisp = disp + insn_disp; + fits16 = (xdisp >= - (bfd_signed_vma) 0x8000 && xdisp < 0x8000); + fits32 = (xdisp >= - (bfd_signed_vma) 0x80000000 + && xdisp < 0x7fff8000); + if (fits16) { - /* FIXME: sanity check the insn for mem format with - zero addend. */ - - /* Take the op code and dest from this insn, take the base + /* Take the op code and dest from this insn, take the base register from the literal insn. Leave the offset alone. */ - insn = (insn & 0xffe00000) | (lit_insn & 0x001f0000); + insn = (insn & 0xffe0ffff) | (lit_insn & 0x001f0000); urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), - R_ALPHA_GPRELLOW); + R_ALPHA_GPREL16); urel->r_addend = irel->r_addend; info->changed_relocs = true; - bfd_put_32 (info->abfd, insn, info->contents + urel->r_offset); + bfd_put_32 (info->abfd, (bfd_vma) insn, + info->contents + urel->r_offset); info->changed_contents = true; } /* If all mem+byte, we can optimize 32-bit mem displacements. */ else if (fits32 && !(flags & ~6)) { - /* FIXME: sanity check that lit insn Ra is mem insn Rb, and - that mem_insn disp is zero. */ + /* FIXME: sanity check that lit insn Ra is mem insn Rb. */ irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), R_ALPHA_GPRELHIGH); lit_insn = (OP_LDAH << 26) | (lit_insn & 0x03ff0000); - bfd_put_32 (info->abfd, lit_insn, + bfd_put_32 (info->abfd, (bfd_vma) lit_insn, info->contents + irel->r_offset); lit_reused = true; info->changed_contents = true; @@ -1172,42 +1377,48 @@ elf64_alpha_relax_with_lituse (info, symval, irel, irelend) all_optimized = false; break; - case 2: /* BYTE OFFSET FORMAT */ + case LITUSE_ALPHA_BYTOFF: /* We can always optimize byte instructions. */ /* FIXME: sanity check the insn for byte op. Check that the literal dest reg is indeed Rb in the byte insn. */ - insn = (insn & ~0x001ff000) | ((symval & 7) << 13) | 0x1000; + insn &= ~ (unsigned) 0x001ff000; + insn |= ((symval & 7) << 13) | 0x1000; urel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); urel->r_addend = 0; info->changed_relocs = true; - bfd_put_32 (info->abfd, insn, info->contents + urel->r_offset); + bfd_put_32 (info->abfd, (bfd_vma) insn, + info->contents + urel->r_offset); info->changed_contents = true; break; - case 3: /* CALL FORMAT */ + case LITUSE_ALPHA_JSR: + case LITUSE_ALPHA_TLSGD: + case LITUSE_ALPHA_TLSLDM: { - /* If not zero, place to jump without needing pv. */ - bfd_vma optdest = elf64_alpha_relax_opt_call (info, symval); - bfd_vma org = (info->sec->output_section->vma - + info->sec->output_offset - + urel->r_offset + 4); + bfd_vma optdest, org; bfd_signed_vma odisp; + /* If not zero, place to jump without needing pv. */ + optdest = elf64_alpha_relax_opt_call (info, symval); + org = (info->sec->output_section->vma + + info->sec->output_offset + + urel->r_offset + 4); odisp = (optdest ? optdest : symval) - org; + if (odisp >= -0x400000 && odisp < 0x400000) { Elf_Internal_Rela *xrel; - /* Preserve branch prediction call stack when possible. */ + /* Preserve branch prediction call stack when possible. */ if ((insn & INSN_JSR_MASK) == INSN_JSR) insn = (OP_BSR << 26) | (insn & 0x03e00000); else insn = (OP_BR << 26) | (insn & 0x03e00000); - + urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), R_ALPHA_BRADDR); urel->r_addend = irel->r_addend; @@ -1217,11 +1428,12 @@ elf64_alpha_relax_with_lituse (info, symval, irel, irelend) else all_optimized = false; - bfd_put_32 (info->abfd, insn, info->contents + urel->r_offset); + bfd_put_32 (info->abfd, (bfd_vma) insn, + info->contents + urel->r_offset); /* Kill any HINT reloc that might exist for this insn. */ xrel = (elf64_alpha_find_reloc_at_ofs - (info->relocs, info->relend, urel->r_offset, + (info->relocs, info->relend, urel->r_offset, R_ALPHA_HINT)); if (xrel) xrel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); @@ -1232,14 +1444,37 @@ elf64_alpha_relax_with_lituse (info, symval, irel, irelend) else all_optimized = false; - /* ??? If target gp == current gp we can eliminate the gp reload. - This does depend on every place a gp could be reloaded will - be, which currently happens for all code produced by gcc, but - not necessarily by hand-coded assembly, or if sibling calls - are enabled in gcc. + /* Even if the target is not in range for a direct branch, + if we share a GP, we can eliminate the gp reload. */ + if (optdest) + { + Elf_Internal_Rela *gpdisp + = (elf64_alpha_find_reloc_at_ofs + (info->relocs, irelend, urel->r_offset + 4, + R_ALPHA_GPDISP)); + if (gpdisp) + { + bfd_byte *p_ldah = info->contents + gpdisp->r_offset; + bfd_byte *p_lda = p_ldah + gpdisp->r_addend; + unsigned int ldah = bfd_get_32 (info->abfd, p_ldah); + unsigned int lda = bfd_get_32 (info->abfd, p_lda); + + /* Verify that the instruction is "ldah $29,0($26)". + Consider a function that ends in a noreturn call, + and that the next function begins with an ldgp, + and that by accident there is no padding between. + In that case the insn would use $27 as the base. */ + if (ldah == 0x27ba0000 && lda == 0x23bd0000) + { + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_ldah); + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_lda); - Perhaps conditionalize this on a flag being set in the target - object file's header, and have gcc set it? */ + gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + info->changed_contents = true; + info->changed_relocs = true; + } + } + } } break; } @@ -1249,26 +1484,30 @@ elf64_alpha_relax_with_lituse (info, symval, irel, irelend) got entry by one, possibly eliminating it. */ if (all_optimized) { - info->gotent->use_count -= 1; - alpha_elf_tdata (info->gotent->gotobj)->total_got_entries -= 1; - if (!info->h) - alpha_elf_tdata (info->gotent->gotobj)->n_local_got_entries -= 1; + if (--info->gotent->use_count == 0) + { + int sz = alpha_got_entry_size (R_ALPHA_LITERAL); + alpha_elf_tdata (info->gotobj)->total_got_size -= sz; + if (!info->h) + alpha_elf_tdata (info->gotobj)->local_got_size -= sz; + } /* If the literal instruction is no longer needed (it may have been - reused. We can eliminate it. - ??? For now, I don't want to deal with compacting the section, + reused. We can eliminate it. */ + /* ??? For now, I don't want to deal with compacting the section, so just nop it out. */ if (!lit_reused) { irel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); info->changed_relocs = true; - bfd_put_32 (info->abfd, INSN_UNOP, info->contents + irel->r_offset); + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, + info->contents + irel->r_offset); info->changed_contents = true; } } - return irel + count; + return true; } static bfd_vma @@ -1282,35 +1521,44 @@ elf64_alpha_relax_opt_call (info, symval) /* If the symbol is marked NOPV, we are being told the function never needs its procedure value. */ - if (info->elfsym->st_other == STO_ALPHA_NOPV) + if ((info->other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_NOPV) return symval; /* If the symbol is marked STD_GP, we are being told the function does - a normal ldgp in the first two words. */ - else if (info->elfsym->st_other == STO_ALPHA_STD_GPLOAD) + a normal ldgp in the first two words. */ + else if ((info->other & STO_ALPHA_STD_GPLOAD) == STO_ALPHA_STD_GPLOAD) ; /* Otherwise, we may be able to identify a GP load in the first two words, which we can then skip. */ - else + else { Elf_Internal_Rela *tsec_relocs, *tsec_relend, *tsec_free, *gpdisp; bfd_vma ofs; - /* Load the relocations from the section that the target symbol is in. */ - tsec_relocs = (_bfd_elf64_link_read_relocs - (info->abfd, info->tsec, (PTR) NULL, - (Elf_Internal_Rela *) NULL, - info->link_info->keep_memory)); - if (tsec_relocs == NULL) - return 0; - tsec_free = (info->link_info->keep_memory ? NULL : tsec_relocs); - tsec_relend = tsec_relocs + info->tsec->reloc_count; + /* Load the relocations from the section that the target symbol is in. */ + if (info->sec == info->tsec) + { + tsec_relocs = info->relocs; + tsec_relend = info->relend; + tsec_free = NULL; + } + else + { + tsec_relocs = (_bfd_elf64_link_read_relocs + (info->abfd, info->tsec, (PTR) NULL, + (Elf_Internal_Rela *) NULL, + info->link_info->keep_memory)); + if (tsec_relocs == NULL) + return 0; + tsec_relend = tsec_relocs + info->tsec->reloc_count; + tsec_free = (info->link_info->keep_memory ? NULL : tsec_relocs); + } /* Recover the symbol's offset within the section. */ ofs = (symval - info->tsec->output_section->vma - info->tsec->output_offset); - + /* Look for a GPDISP reloc. */ gpdisp = (elf64_alpha_find_reloc_at_ofs (tsec_relocs, tsec_relend, ofs, R_ALPHA_GPDISP)); @@ -1325,7 +1573,7 @@ elf64_alpha_relax_opt_call (info, symval) free (tsec_free); } - /* We've now determined that we can skip an initial gp load. Verify + /* We've now determined that we can skip an initial gp load. Verify that the call and the target use the same gp. */ if (info->link_info->hash->creator != info->tsec->owner->xvec || info->gotobj != alpha_elf_tdata (info->tsec->owner)->gotobj) @@ -1335,10 +1583,11 @@ elf64_alpha_relax_opt_call (info, symval) } static boolean -elf64_alpha_relax_without_lituse (info, symval, irel) +elf64_alpha_relax_got_load (info, symval, irel, r_type) struct alpha_relax_info *info; bfd_vma symval; Elf_Internal_Rela *irel; + unsigned long r_type; { unsigned int insn; bfd_signed_vma disp; @@ -1348,37 +1597,74 @@ elf64_alpha_relax_without_lituse (info, symval, irel) if (insn >> 26 != OP_LDQ) { + reloc_howto_type *howto = elf64_alpha_howto_table + r_type; ((*_bfd_error_handler) - ("%s: %s+0x%lx: warning: LITERAL relocation against unexpected insn", - bfd_get_filename (info->abfd), info->sec->name, - (unsigned long) irel->r_offset)); + ("%s: %s+0x%lx: warning: %s relocation against unexpected insn", + bfd_archive_filename (info->abfd), info->sec->name, + (unsigned long) irel->r_offset, howto->name)); return true; } - /* So we aren't told much. Do what we can with the address load and - fake the rest. All of the optimizations here require that the - offset from the GP fit in 16 bits. */ + /* Can't relax dynamic symbols. */ + if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info)) + return true; - disp = symval - info->gp; - if (disp < -0x8000 || disp >= 0x8000) + /* Can't use local-exec relocations in shared libraries. */ + if (r_type == R_ALPHA_GOTTPREL && info->link_info->shared) return true; - /* On the LITERAL instruction itself, consider exchanging - `ldq R,X(gp)' for `lda R,Y(gp)'. */ + if (r_type == R_ALPHA_LITERAL) + disp = symval - info->gp; + else + { + bfd_vma dtp_base, tp_base; + + BFD_ASSERT (info->tls_segment != NULL); + dtp_base = alpha_get_dtprel_base (info->tls_segment); + tp_base = alpha_get_tprel_base (info->tls_segment); + disp = symval - (r_type == R_ALPHA_GOTDTPREL ? dtp_base : tp_base); + } + + if (disp < -0x8000 || disp >= 0x8000) + return true; - insn = (OP_LDA << 26) | (insn & 0x03ff0000); - bfd_put_32 (info->abfd, insn, info->contents + irel->r_offset); + /* Exchange LDQ for LDA. In the case of the TLS relocs, we're loading + a constant, so force the base register to be $31. */ + if (r_type == R_ALPHA_LITERAL) + insn = (OP_LDA << 26) | (insn & 0x03ff0000); + else + insn = (OP_LDA << 26) | (insn & (31 << 21)) | (31 << 16); + bfd_put_32 (info->abfd, (bfd_vma) insn, info->contents + irel->r_offset); info->changed_contents = true; - irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), R_ALPHA_GPRELLOW); + switch (r_type) + { + case R_ALPHA_LITERAL: + r_type = R_ALPHA_GPREL16; + break; + case R_ALPHA_GOTDTPREL: + r_type = R_ALPHA_DTPREL16; + break; + case R_ALPHA_GOTTPREL: + r_type = R_ALPHA_TPREL16; + break; + default: + BFD_ASSERT (0); + return false; + } + + irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), r_type); info->changed_relocs = true; /* Reduce the use count on this got entry by one, possibly eliminating it. */ - info->gotent->use_count -= 1; - alpha_elf_tdata (info->gotent->gotobj)->total_got_entries -= 1; - if (!info->h) - alpha_elf_tdata (info->gotent->gotobj)->n_local_got_entries -= 1; + if (--info->gotent->use_count == 0) + { + int sz = alpha_got_entry_size (r_type); + alpha_elf_tdata (info->gotobj)->total_got_size -= sz; + if (!info->h) + alpha_elf_tdata (info->gotobj)->local_got_size -= sz; + } /* ??? Search forward through this basic block looking for insns that use the target register. Stop after an insn modifying the @@ -1386,7 +1672,7 @@ elf64_alpha_relax_without_lituse (info, symval, irel) Any such memory load insn may be substituted by a load directly off the GP. This allows the memory load insn to be issued before - the calculated GP register would otherwise be ready. + the calculated GP register would otherwise be ready. Any such jsr insn can be replaced by a bsr if it is in range. @@ -1397,205 +1683,610 @@ elf64_alpha_relax_without_lituse (info, symval, irel) } static boolean -elf64_alpha_relax_section (abfd, sec, link_info, again) - bfd *abfd; - asection *sec; - struct bfd_link_info *link_info; - boolean *again; +elf64_alpha_relax_gprelhilo (info, symval, irel, hi) + struct alpha_relax_info *info; + bfd_vma symval; + Elf_Internal_Rela *irel; + boolean hi; { - Elf_Internal_Shdr *symtab_hdr; - Elf_Internal_Rela *internal_relocs; - Elf_Internal_Rela *free_relocs = NULL; - Elf_Internal_Rela *irel, *irelend; - bfd_byte *free_contents = NULL; - Elf64_External_Sym *extsyms = NULL; - Elf64_External_Sym *free_extsyms = NULL; - struct alpha_elf_got_entry **local_got_entries; - struct alpha_relax_info info; + unsigned int insn; + bfd_signed_vma disp; + bfd_byte *pos = info->contents + irel->r_offset; - /* We are not currently changing any sizes, so only one pass. */ - *again = false; + /* ??? This assumes that the compiler doesn't render - if (link_info->relocateable - || (sec->flags & SEC_RELOC) == 0 - || sec->reloc_count == 0) - return true; + array[i] + as + ldah t, array(gp) !gprelhigh + s8addl i, t, t + ldq r, array(t) !gprellow - /* If this is the first time we have been called for this section, - initialize the cooked size. */ - if (sec->_cooked_size == 0) - sec->_cooked_size = sec->_raw_size; + which would indeed be the most efficient way to implement this. */ - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - local_got_entries = alpha_elf_tdata(abfd)->local_got_entries; + return true; - /* Load the relocations for this section. */ - internal_relocs = (_bfd_elf64_link_read_relocs - (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, - link_info->keep_memory)); - if (internal_relocs == NULL) - goto error_return; - if (! link_info->keep_memory) - free_relocs = internal_relocs; + disp = symval - info->gp; + if (disp < -0x8000 || disp >= 0x8000) + return true; - memset(&info, 0, sizeof(info)); + if (hi) + { + /* Nop out the high instruction. */ + + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos); + info->changed_contents = true; + + irel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + irel->r_addend = 0; + info->changed_relocs = true; + } + else + { + /* Adjust the low instruction to reference GP directly. */ + + insn = bfd_get_32 (info->abfd, pos); + insn = (insn & 0xffe00000) | (29 << 16); + bfd_put_32 (info->abfd, (bfd_vma) insn, pos); + info->changed_contents = true; + + irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), + R_ALPHA_GPREL16); + info->changed_relocs = true; + } + + return true; +} + +static boolean +elf64_alpha_relax_tls_get_addr (info, symval, irel, is_gd) + struct alpha_relax_info *info; + bfd_vma symval; + Elf_Internal_Rela *irel; + boolean is_gd; +{ + bfd_byte *pos[5]; + unsigned int insn; + Elf_Internal_Rela *gpdisp, *hint; + boolean dynamic, use_gottprel; + + dynamic = alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info); + + /* ??? For LD relaxation, we need a symbol referencing the beginning + of the TLS segment. */ + if (!is_gd) + return true; + + /* If a TLS symbol is accessed using IE at least once, there is no point + to use dynamic model for it. */ + if (is_gd && info->h && (info->h->flags & ALPHA_ELF_LINK_HASH_TLS_IE)) + ; + + /* If the symbol is local, and we've already committed to DF_STATIC_TLS, + then we might as well relax to IE. */ + else if (info->link_info->shared && !dynamic + && (info->link_info->flags & DF_STATIC_TLS)) + ; + + /* Otherwise we must be building an executable to do anything. */ + else if (info->link_info->shared) + return true; + + /* The TLSGD/TLSLDM relocation must be followed by a LITERAL and + the matching LITUSE_TLS relocations. */ + if (irel + 2 >= info->relend) + return true; + if (ELF64_R_TYPE (irel[1].r_info) != R_ALPHA_LITERAL + || ELF64_R_TYPE (irel[2].r_info) != R_ALPHA_LITUSE + || irel[2].r_addend != (is_gd ? LITUSE_ALPHA_TLSGD : LITUSE_ALPHA_TLSLDM)) + return true; + + /* There must be a GPDISP relocation positioned immediately after the + LITUSE relocation. */ + gpdisp = elf64_alpha_find_reloc_at_ofs (info->relocs, info->relend, + irel[2].r_offset + 4, R_ALPHA_GPDISP); + if (!gpdisp) + return true; + + pos[0] = info->contents + irel[0].r_offset; + pos[1] = info->contents + irel[1].r_offset; + pos[2] = info->contents + irel[2].r_offset; + pos[3] = info->contents + gpdisp->r_offset; + pos[4] = pos[3] + gpdisp->r_addend; + + /* Only positions 0 and 1 are allowed to be out of order. */ + if (pos[1] < pos[0]) + { + bfd_byte *tmp = pos[0]; + pos[0] = pos[1]; + pos[1] = tmp; + } + if (pos[1] >= pos[2] || pos[2] >= pos[3] || pos[3] >= pos[4]) + return true; + + /* Reduce the use count on the LITERAL relocation. Do this before we + smash the symndx when we adjust the relocations below. */ + { + struct alpha_elf_got_entry *lit_gotent; + struct alpha_elf_link_hash_entry *lit_h; + unsigned long indx; + + BFD_ASSERT (ELF64_R_SYM (irel[1].r_info) >= info->symtab_hdr->sh_info); + indx = ELF64_R_SYM (irel[1].r_info) - info->symtab_hdr->sh_info; + lit_h = alpha_elf_sym_hashes (info->abfd)[indx]; + + while (lit_h->root.root.type == bfd_link_hash_indirect + || lit_h->root.root.type == bfd_link_hash_warning) + lit_h = (struct alpha_elf_link_hash_entry *) lit_h->root.root.u.i.link; + + for (lit_gotent = lit_h->got_entries; lit_gotent ; + lit_gotent = lit_gotent->next) + if (lit_gotent->gotobj == info->gotobj + && lit_gotent->reloc_type == R_ALPHA_LITERAL + && lit_gotent->addend == irel[1].r_addend) + break; + BFD_ASSERT (lit_gotent); + + if (--lit_gotent->use_count == 0) + { + int sz = alpha_got_entry_size (R_ALPHA_LITERAL); + alpha_elf_tdata (info->gotobj)->total_got_size -= sz; + } + } + + /* Change + + lda $16,x($gp) !tlsgd!1 + ldq $27,__tls_get_addr($gp) !literal!1 + jsr $26,($27)__tls_get_addr !lituse_tlsgd!1 + ldah $29,0($26) !gpdisp!2 + lda $29,0($29) !gpdisp!2 + to + ldq $16,x($gp) !gottprel + unop + call_pal rduniq + addq $16,$0,$0 + unop + or the first pair to + lda $16,x($gp) !tprel + unop + or + ldah $16,x($gp) !tprelhi + lda $16,x($16) !tprello + + as appropriate. */ + + use_gottprel = false; + switch (!dynamic && !info->link_info->shared) + { + case 1: + { + bfd_vma tp_base; + bfd_signed_vma disp; + + BFD_ASSERT (info->tls_segment != NULL); + tp_base = alpha_get_tprel_base (info->tls_segment); + disp = symval - tp_base; + + if (disp >= -0x8000 && disp < 0x8000) + { + insn = (OP_LDA << 26) | (16 << 21) | (31 << 16); + bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]); + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[1]); + + irel[0].r_offset = pos[0] - info->contents; + irel[0].r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), + R_ALPHA_TPREL16); + irel[1].r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + break; + } + else if (disp >= -(bfd_signed_vma) 0x80000000 + && disp < (bfd_signed_vma) 0x7fff8000) + { + insn = (OP_LDAH << 26) | (16 << 21) | (31 << 16); + bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]); + insn = (OP_LDA << 26) | (16 << 21) | (16 << 16); + bfd_put_32 (info->abfd, (bfd_vma) insn, pos[1]); + + irel[0].r_offset = pos[0] - info->contents; + irel[0].r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), + R_ALPHA_TPRELHI); + irel[1].r_offset = pos[1] - info->contents; + irel[1].r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), + R_ALPHA_TPRELLO); + break; + } + } + /* FALLTHRU */ + + default: + use_gottprel = true; + + insn = (OP_LDQ << 26) | (16 << 21) | (29 << 16); + bfd_put_32 (info->abfd, (bfd_vma) insn, pos[0]); + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[1]); + + irel[0].r_offset = pos[0] - info->contents; + irel[0].r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info), + R_ALPHA_GOTTPREL); + irel[1].r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + break; + } + + bfd_put_32 (info->abfd, (bfd_vma) INSN_RDUNIQ, pos[2]); + + insn = INSN_ADDQ | (16 << 21) | (0 << 16) | (0 << 0); + bfd_put_32 (info->abfd, (bfd_vma) insn, pos[3]); + + bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, pos[4]); + + irel[2].r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + + hint = elf64_alpha_find_reloc_at_ofs (info->relocs, info->relend, + irel[2].r_offset, R_ALPHA_HINT); + if (hint) + hint->r_info = ELF64_R_INFO (0, R_ALPHA_NONE); + + info->changed_contents = true; + info->changed_relocs = true; + + /* Reduce the use count on the TLSGD/TLSLDM relocation. */ + if (--info->gotent->use_count == 0) + { + int sz = alpha_got_entry_size (info->gotent->reloc_type); + alpha_elf_tdata (info->gotobj)->total_got_size -= sz; + if (!info->h) + alpha_elf_tdata (info->gotobj)->local_got_size -= sz; + } + + /* If we've switched to a GOTTPREL relocation, increment the reference + count on that got entry. */ + if (use_gottprel) + { + struct alpha_elf_got_entry *tprel_gotent; + + for (tprel_gotent = *info->first_gotent; tprel_gotent ; + tprel_gotent = tprel_gotent->next) + if (tprel_gotent->gotobj == info->gotobj + && tprel_gotent->reloc_type == R_ALPHA_GOTTPREL + && tprel_gotent->addend == irel->r_addend) + break; + if (tprel_gotent) + tprel_gotent->use_count++; + else + { + if (info->gotent->use_count == 0) + tprel_gotent = info->gotent; + else + { + tprel_gotent = (struct alpha_elf_got_entry *) + bfd_alloc (info->abfd, sizeof (struct alpha_elf_got_entry)); + if (!tprel_gotent) + return false; + + tprel_gotent->next = *info->first_gotent; + *info->first_gotent = tprel_gotent; + + tprel_gotent->gotobj = info->gotobj; + tprel_gotent->addend = irel->r_addend; + tprel_gotent->got_offset = -1; + tprel_gotent->reloc_done = 0; + tprel_gotent->reloc_xlated = 0; + } + + tprel_gotent->use_count = 1; + tprel_gotent->reloc_type = R_ALPHA_GOTTPREL; + } + } + + return true; +} + +static struct elf_link_tls_segment * +elf64_alpha_relax_find_tls_segment (info, seg) + struct alpha_relax_info *info; + struct elf_link_tls_segment *seg; +{ + bfd *output_bfd = info->sec->output_section->owner; + asection *o; + unsigned int align; + bfd_vma base, end; + + for (o = output_bfd->sections; o ; o = o->next) + if ((o->flags & SEC_THREAD_LOCAL) != 0 + && (o->flags & SEC_LOAD) != 0) + break; + if (!o) + return NULL; + + base = o->vma; + align = 0; + + do + { + bfd_vma size; + + if (bfd_get_section_alignment (output_bfd, o) > align) + align = bfd_get_section_alignment (output_bfd, o); + + size = o->_raw_size; + if (size == 0 && (o->flags & SEC_HAS_CONTENTS) == 0) + { + struct bfd_link_order *lo; + for (lo = o->link_order_head; lo ; lo = lo->next) + if (size < lo->offset + lo->size) + size = lo->offset + lo->size; + } + end = o->vma + size; + o = o->next; + } + while (o && (o->flags & SEC_THREAD_LOCAL)); + + seg->start = base; + seg->size = end - base; + seg->align = align; + + return seg; +} + +static boolean +elf64_alpha_relax_section (abfd, sec, link_info, again) + bfd *abfd; + asection *sec; + struct bfd_link_info *link_info; + boolean *again; +{ + Elf_Internal_Shdr *symtab_hdr; + Elf_Internal_Shdr *shndx_hdr; + Elf_Internal_Rela *internal_relocs; + Elf_Internal_Rela *free_relocs = NULL; + Elf_Internal_Rela *irel, *irelend; + bfd_byte *free_contents = NULL; + Elf64_External_Sym *extsyms; + Elf64_External_Sym *free_extsyms = NULL; + Elf_External_Sym_Shndx *shndx_buf = NULL; + struct alpha_elf_got_entry **local_got_entries; + struct alpha_relax_info info; + struct elf_link_tls_segment tls_segment; + + /* We are not currently changing any sizes, so only one pass. */ + *again = false; + + if (link_info->relocateable + || (sec->flags & SEC_RELOC) == 0 + || sec->reloc_count == 0) + return true; + + /* If this is the first time we have been called for this section, + initialize the cooked size. */ + if (sec->_cooked_size == 0) + sec->_cooked_size = sec->_raw_size; + + symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + local_got_entries = alpha_elf_tdata(abfd)->local_got_entries; + + /* Load the relocations for this section. */ + internal_relocs = (_bfd_elf64_link_read_relocs + (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, + link_info->keep_memory)); + if (internal_relocs == NULL) + goto error_return; + if (! link_info->keep_memory) + free_relocs = internal_relocs; + + memset(&info, 0, sizeof (info)); info.abfd = abfd; info.sec = sec; info.link_info = link_info; + info.symtab_hdr = symtab_hdr; info.relocs = internal_relocs; info.relend = irelend = internal_relocs + sec->reloc_count; - /* Find the GP for this object. */ + /* Find the GP for this object. Do not store the result back via + _bfd_set_gp_value, since this could change again before final. */ info.gotobj = alpha_elf_tdata (abfd)->gotobj; if (info.gotobj) { asection *sgot = alpha_elf_tdata (info.gotobj)->got; - info.gp = _bfd_get_gp_value (info.gotobj); - if (info.gp == 0) - { - info.gp = (sgot->output_section->vma - + sgot->output_offset - + 0x8000); - _bfd_set_gp_value (info.gotobj, info.gp); - } + info.gp = (sgot->output_section->vma + + sgot->output_offset + + 0x8000); } - for (irel = internal_relocs; irel < irelend; irel++) + /* Get the section contents. */ + if (elf_section_data (sec)->this_hdr.contents != NULL) + info.contents = elf_section_data (sec)->this_hdr.contents; + else { - bfd_vma symval; - unsigned int insn; - Elf_Internal_Sym isym; - - if (ELF64_R_TYPE (irel->r_info) != (int) R_ALPHA_LITERAL) - continue; - - /* Get the section contents. */ + info.contents = (bfd_byte *) bfd_malloc (sec->_raw_size); if (info.contents == NULL) - { - if (elf_section_data (sec)->this_hdr.contents != NULL) - info.contents = elf_section_data (sec)->this_hdr.contents; - else - { - info.contents = (bfd_byte *) bfd_malloc (sec->_raw_size); - if (info.contents == NULL) - goto error_return; - free_contents = info.contents; + goto error_return; + free_contents = info.contents; - if (! bfd_get_section_contents (abfd, sec, info.contents, - (file_ptr) 0, sec->_raw_size)) - goto error_return; - } - } + if (! bfd_get_section_contents (abfd, sec, info.contents, + (file_ptr) 0, sec->_raw_size)) + goto error_return; + } - /* Read this BFD's symbols if we haven't done so already. */ + /* Read this BFD's symbols. */ + if (symtab_hdr->contents != NULL) + extsyms = (Elf64_External_Sym *) symtab_hdr->contents; + else + { + bfd_size_type amt = symtab_hdr->sh_info * sizeof (Elf64_External_Sym); + extsyms = (Elf64_External_Sym *) bfd_malloc (amt); if (extsyms == NULL) + goto error_return; + free_extsyms = extsyms; + if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 + || bfd_bread ((PTR) extsyms, amt, abfd) != amt) + goto error_return; + } + + shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; + if (shndx_hdr->sh_size != 0) + { + bfd_size_type amt; + amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx); + shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); + if (shndx_buf == NULL) + goto error_return; + if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0 + || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt) + goto error_return; + } + + /* Compute the TLS segment information. The version normally found in + elf_hash_table (link_info)->tls_segment isn't built until final_link. + ??? Probably should look into extracting this into a common function. */ + info.tls_segment = elf64_alpha_relax_find_tls_segment (&info, &tls_segment); + + for (irel = internal_relocs; irel < irelend; irel++) + { + bfd_vma symval; + Elf_Internal_Sym isym; + struct alpha_elf_got_entry *gotent; + unsigned long r_type = ELF64_R_TYPE (irel->r_info); + + /* Early exit for unhandled or unrelaxable relocations. */ + switch (r_type) { - if (symtab_hdr->contents != NULL) - extsyms = (Elf64_External_Sym *) symtab_hdr->contents; - else - { - extsyms = ((Elf64_External_Sym *) - bfd_malloc (symtab_hdr->sh_size)); - if (extsyms == NULL) - goto error_return; - free_extsyms = extsyms; - if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_read (extsyms, 1, symtab_hdr->sh_size, abfd) - != symtab_hdr->sh_size)) - goto error_return; - } + case R_ALPHA_LITERAL: + case R_ALPHA_GPRELHIGH: + case R_ALPHA_GPRELLOW: + case R_ALPHA_GOTDTPREL: + case R_ALPHA_GOTTPREL: + case R_ALPHA_TLSGD: + case R_ALPHA_TLSLDM: + break; + default: + continue; } /* Get the value of the symbol referred to by the reloc. */ if (ELF64_R_SYM (irel->r_info) < symtab_hdr->sh_info) { - /* A local symbol. */ - bfd_elf64_swap_symbol_in (abfd, - extsyms + ELF64_R_SYM (irel->r_info), - &isym); + Elf64_External_Sym *esym; + Elf_External_Sym_Shndx *shndx; + + esym = extsyms + ELF64_R_SYM (irel->r_info); + shndx = shndx_buf + (shndx_buf ? ELF64_R_SYM (irel->r_info) : 0); + bfd_elf64_swap_symbol_in (abfd, esym, shndx, &isym); if (isym.st_shndx == SHN_UNDEF) - info.tsec = bfd_und_section_ptr; - else if (isym.st_shndx > 0 && isym.st_shndx < SHN_LORESERVE) - info.tsec = bfd_section_from_elf_index (abfd, isym.st_shndx); + continue; else if (isym.st_shndx == SHN_ABS) info.tsec = bfd_abs_section_ptr; else if (isym.st_shndx == SHN_COMMON) info.tsec = bfd_com_section_ptr; - else - continue; /* who knows. */ + else + info.tsec = bfd_section_from_elf_index (abfd, isym.st_shndx); info.h = NULL; - info.gotent = local_got_entries[ELF64_R_SYM(irel->r_info)]; - info.elfsym = &isym; + info.other = isym.st_other; + info.first_gotent = &local_got_entries[ELF64_R_SYM(irel->r_info)]; symval = isym.st_value; } else { unsigned long indx; struct alpha_elf_link_hash_entry *h; - struct alpha_elf_got_entry *gotent; indx = ELF64_R_SYM (irel->r_info) - symtab_hdr->sh_info; h = alpha_elf_sym_hashes (abfd)[indx]; BFD_ASSERT (h != NULL); - /* We can't do anthing with undefined or dynamic symbols. */ - if (h->root.root.type == bfd_link_hash_undefined - || h->root.root.type == bfd_link_hash_undefweak - || alpha_elf_dynamic_symbol_p (&h->root, link_info)) + while (h->root.root.type == bfd_link_hash_indirect + || h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link; + + /* If the symbol is undefined, we can't do anything with it. */ + if (h->root.root.type == bfd_link_hash_undefweak + || h->root.root.type == bfd_link_hash_undefined) continue; - /* Search for the got entry to be used by this relocation. */ - for (gotent = h->got_entries; gotent ; gotent = gotent->next) - if (gotent->gotobj == info.gotobj - && gotent->addend == irel->r_addend) - break; + /* If the symbol isn't defined in the current module, again + we can't do anything. */ + if (!(h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) + continue; info.h = h; - info.gotent = gotent; info.tsec = h->root.root.u.def.section; - info.elfsym = &((elf_symbol_type *) h)->internal_elf_sym; + info.other = h->root.other; + info.first_gotent = &h->got_entries; symval = h->root.root.u.def.value; } + + /* Search for the got entry to be used by this relocation. */ + for (gotent = *info.first_gotent; gotent ; gotent = gotent->next) + if (gotent->gotobj == info.gotobj + && gotent->reloc_type == r_type + && gotent->addend == irel->r_addend) + break; + info.gotent = gotent; + symval += info.tsec->output_section->vma + info.tsec->output_offset; symval += irel->r_addend; - BFD_ASSERT(info.gotent != NULL); + switch (r_type) + { + case R_ALPHA_LITERAL: + BFD_ASSERT(info.gotent != NULL); + + /* If there exist LITUSE relocations immediately following, this + opens up all sorts of interesting optimizations, because we + now know every location that this address load is used. */ + if (irel+1 < irelend + && ELF64_R_TYPE (irel[1].r_info) == R_ALPHA_LITUSE) + { + if (!elf64_alpha_relax_with_lituse (&info, symval, irel)) + goto error_return; + } + else + { + if (!elf64_alpha_relax_got_load (&info, symval, irel, r_type)) + goto error_return; + } + break; - /* If there exist LITUSE relocations immediately following, this - opens up all sorts of interesting optimizations, because we - now know every location that this address load is used. */ + case R_ALPHA_GPRELHIGH: + case R_ALPHA_GPRELLOW: + if (!elf64_alpha_relax_gprelhilo (&info, symval, irel, + r_type == R_ALPHA_GPRELHIGH)) + goto error_return; + break; - if (irel+1 < irelend && ELF64_R_TYPE (irel[1].r_info) == R_ALPHA_LITUSE) - { - irel = elf64_alpha_relax_with_lituse (&info, symval, irel, irelend); - if (irel == NULL) + case R_ALPHA_GOTDTPREL: + case R_ALPHA_GOTTPREL: + BFD_ASSERT(info.gotent != NULL); + if (!elf64_alpha_relax_got_load (&info, symval, irel, r_type)) goto error_return; - } - else - { - if (!elf64_alpha_relax_without_lituse (&info, symval, irel)) + break; + + case R_ALPHA_TLSGD: + case R_ALPHA_TLSLDM: + BFD_ASSERT(info.gotent != NULL); + if (!elf64_alpha_relax_tls_get_addr (&info, symval, irel, + r_type == R_ALPHA_TLSGD)) goto error_return; + break; } } - if (!elf64_alpha_size_got_sections (abfd, link_info)) + if (!elf64_alpha_size_plt_section (link_info)) + return false; + if (!elf64_alpha_size_got_sections (link_info)) + return false; + if (!elf64_alpha_size_rela_got_section (link_info)) return false; if (info.changed_relocs) - { - elf_section_data (sec)->relocs = internal_relocs; - } + elf_section_data (sec)->relocs = internal_relocs; else if (free_relocs != NULL) - { - free (free_relocs); - } + free (free_relocs); if (info.changed_contents) - { - elf_section_data (sec)->this_hdr.contents = info.contents; - } + elf_section_data (sec)->this_hdr.contents = info.contents; else if (free_contents != NULL) { if (! link_info->keep_memory) @@ -1607,6 +2298,9 @@ elf64_alpha_relax_section (abfd, sec, link_info, again) } } + if (shndx_buf != NULL) + free (shndx_buf); + if (free_extsyms != NULL) { if (! link_info->keep_memory) @@ -1614,10 +2308,12 @@ elf64_alpha_relax_section (abfd, sec, link_info, again) else { /* Cache the symbols for elf_link_input_bfd. */ - symtab_hdr->contents = extsyms; + symtab_hdr->contents = (unsigned char *) extsyms; } } + *again = info.changed_contents || info.changed_relocs; + return true; error_return: @@ -1625,6 +2321,8 @@ elf64_alpha_relax_section (abfd, sec, link_info, again) free (free_relocs); if (free_contents != NULL) free (free_contents); + if (shndx_buf != NULL) + free (shndx_buf); if (free_extsyms != NULL) free (free_extsyms); return false; @@ -1632,17 +2330,17 @@ elf64_alpha_relax_section (abfd, sec, link_info, again) /* PLT/GOT Stuff */ #define PLT_HEADER_SIZE 32 -#define PLT_HEADER_WORD1 0xc3600000 /* br $27,.+4 */ -#define PLT_HEADER_WORD2 0xa77b000c /* ldq $27,12($27) */ -#define PLT_HEADER_WORD3 0x47ff041f /* nop */ -#define PLT_HEADER_WORD4 0x6b7b0000 /* jmp $27,($27) */ +#define PLT_HEADER_WORD1 (bfd_vma) 0xc3600000 /* br $27,.+4 */ +#define PLT_HEADER_WORD2 (bfd_vma) 0xa77b000c /* ldq $27,12($27) */ +#define PLT_HEADER_WORD3 (bfd_vma) 0x47ff041f /* nop */ +#define PLT_HEADER_WORD4 (bfd_vma) 0x6b7b0000 /* jmp $27,($27) */ #define PLT_ENTRY_SIZE 12 #define PLT_ENTRY_WORD1 0xc3800000 /* br $28, plt0 */ #define PLT_ENTRY_WORD2 0 #define PLT_ENTRY_WORD3 0 -#define MAX_GOT_ENTRIES (64*1024 / 8) +#define MAX_GOT_SIZE (64*1024) #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so" @@ -1655,7 +2353,7 @@ static boolean elf64_alpha_section_from_shdr (abfd, hdr, name) bfd *abfd; Elf64_Internal_Shdr *hdr; - char *name; + const char *name; { asection *newsect; @@ -1670,13 +2368,6 @@ elf64_alpha_section_from_shdr (abfd, hdr, name) if (strcmp (name, ".mdebug") != 0) return false; break; -#ifdef ERIC_neverdef - case SHT_ALPHA_REGINFO: - if (strcmp (name, ".reginfo") != 0 - || hdr->sh_size != sizeof (Elf64_External_RegInfo)) - return false; - break; -#endif default: return false; } @@ -1693,22 +2384,18 @@ elf64_alpha_section_from_shdr (abfd, hdr, name) return false; } -#ifdef ERIC_neverdef - /* For a .reginfo section, set the gp value in the tdata information - from the contents of this section. We need the gp value while - processing relocs, so we just get it now. */ - if (hdr->sh_type == SHT_ALPHA_REGINFO) - { - Elf64_External_RegInfo ext; - Elf64_RegInfo s; + return true; +} - if (! bfd_get_section_contents (abfd, newsect, (PTR) &ext, - (file_ptr) 0, sizeof ext)) - return false; - bfd_alpha_elf64_swap_reginfo_in (abfd, &ext, &s); - elf_gp (abfd) = s.ri_gp_value; - } -#endif +/* Convert Alpha specific section flags to bfd internal section flags. */ + +static boolean +elf64_alpha_section_flags (flags, hdr) + flagword *flags; + Elf64_Internal_Shdr *hdr; +{ + if (hdr->sh_flags & SHF_ALPHA_GPREL) + *flags |= SEC_SMALL_DATA; return true; } @@ -1736,31 +2423,8 @@ elf64_alpha_fake_sections (abfd, hdr, sec) else hdr->sh_entsize = 1; } -#ifdef ERIC_neverdef - else if (strcmp (name, ".reginfo") == 0) - { - hdr->sh_type = SHT_ALPHA_REGINFO; - /* In a shared object on Irix 5.3, the .reginfo section has an - entsize of 0x18. FIXME: Does this matter? */ - if ((abfd->flags & DYNAMIC) != 0) - hdr->sh_entsize = sizeof (Elf64_External_RegInfo); - else - hdr->sh_entsize = 1; - - /* Force the section size to the correct value, even if the - linker thinks it is larger. The link routine below will only - write out this much data for .reginfo. */ - hdr->sh_size = sec->_raw_size = sizeof (Elf64_External_RegInfo); - } - else if (strcmp (name, ".hash") == 0 - || strcmp (name, ".dynamic") == 0 - || strcmp (name, ".dynstr") == 0) - { - hdr->sh_entsize = 0; - hdr->sh_info = SIZEOF_ALPHA_DYNSYM_SECNAMES; - } -#endif - else if (strcmp (name, ".sdata") == 0 + else if ((sec->flags & SEC_SMALL_DATA) + || strcmp (name, ".sdata") == 0 || strcmp (name, ".sbss") == 0 || strcmp (name, ".lit4") == 0 || strcmp (name, ".lit8") == 0) @@ -1777,14 +2441,14 @@ elf64_alpha_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) bfd *abfd; struct bfd_link_info *info; const Elf_Internal_Sym *sym; - const char **namep; - flagword *flagsp; + const char **namep ATTRIBUTE_UNUSED; + flagword *flagsp ATTRIBUTE_UNUSED; asection **secp; bfd_vma *valp; { if (sym->st_shndx == SHN_COMMON && !info->relocateable - && sym->st_size <= bfd_get_gp_size (abfd)) + && sym->st_size <= elf_gp_size (abfd)) { /* Common symbols less than or equal to -G nn bytes are automatically put into .sbss. */ @@ -1794,46 +2458,18 @@ elf64_alpha_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) if (scomm == NULL) { scomm = bfd_make_section (abfd, ".scommon"); - if (scomm == NULL - || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC - | SEC_IS_COMMON - | SEC_LINKER_CREATED))) - return false; - } - - *secp = scomm; - *valp = sym->st_size; - } - - return true; -} - -/* Return the number of additional phdrs we will need. */ - -static int -elf64_alpha_additional_program_headers (abfd) - bfd *abfd; -{ - asection *s; - int ret; - - ret = 0; - - s = bfd_get_section_by_name (abfd, ".reginfo"); - if (s != NULL && (s->flags & SEC_LOAD) != 0) - { - /* We need a PT_ALPHA_REGINFO segment. */ - ++ret; - } + if (scomm == NULL + || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC + | SEC_IS_COMMON + | SEC_LINKER_CREATED))) + return false; + } - if (bfd_get_section_by_name (abfd, ".dynamic") != NULL - && bfd_get_section_by_name (abfd, ".mdebug") != NULL) - { - /* We need a PT_ALPHA_RTPROC segment. */ - ++ret; + *secp = scomm; + *valp = sym->st_size; } - return ret; + return true; } /* Create the .got section. */ @@ -1841,7 +2477,7 @@ elf64_alpha_additional_program_headers (abfd) static boolean elf64_alpha_create_got_section(abfd, info) bfd *abfd; - struct bfd_link_info *info; + struct bfd_link_info *info ATTRIBUTE_UNUSED; { asection *s; @@ -1963,8 +2599,9 @@ elf64_alpha_read_ecoff_info (abfd, section, debug) char *ext_hdr = NULL; swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; + memset (debug, 0, sizeof (*debug)); - ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size); + ext_hdr = (char *) bfd_malloc (swap->external_hdr_size); if (ext_hdr == NULL && swap->external_hdr_size != 0) goto error_return; @@ -1983,12 +2620,12 @@ elf64_alpha_read_ecoff_info (abfd, section, debug) debug->ptr = NULL; \ else \ { \ - debug->ptr = (type) bfd_malloc ((size_t) (size * symhdr->count)); \ + bfd_size_type amt = (bfd_size_type) size * symhdr->count; \ + debug->ptr = (type) bfd_malloc (amt); \ if (debug->ptr == NULL) \ goto error_return; \ if (bfd_seek (abfd, (file_ptr) symhdr->offset, SEEK_SET) != 0 \ - || (bfd_read (debug->ptr, size, symhdr->count, \ - abfd) != size * symhdr->count)) \ + || bfd_bread (debug->ptr, amt, abfd) != amt) \ goto error_return; \ } @@ -2043,7 +2680,7 @@ elf64_alpha_read_ecoff_info (abfd, section, debug) static boolean elf64_alpha_is_local_label_name (abfd, name) - bfd *abfd; + bfd *abfd ATTRIBUTE_UNUSED; const char *name; { return name[0] == '$'; @@ -2073,6 +2710,12 @@ elf64_alpha_find_nearest_line (abfd, section, symbols, offset, filename_ptr, { asection *msec; + if (_bfd_dwarf2_find_nearest_line (abfd, section, symbols, offset, + filename_ptr, functionname_ptr, + line_ptr, 0, + &elf_tdata (abfd)->dwarf2_find_line_info)) + return true; + msec = bfd_get_section_by_name (abfd, ".mdebug"); if (msec != NULL) { @@ -2095,9 +2738,9 @@ elf64_alpha_find_nearest_line (abfd, section, symbols, offset, filename_ptr, char *fraw_src; char *fraw_end; struct fdr *fdr_ptr; + bfd_size_type amt = sizeof (struct mips_elf_find_line); - fi = ((struct mips_elf_find_line *) - bfd_zalloc (abfd, sizeof (struct mips_elf_find_line))); + fi = (struct mips_elf_find_line *) bfd_zalloc (abfd, amt); if (fi == NULL) { msec->flags = origflags; @@ -2111,10 +2754,8 @@ elf64_alpha_find_nearest_line (abfd, section, symbols, offset, filename_ptr, } /* Swap in the FDR information. */ - fi->d.fdr = ((struct fdr *) - bfd_alloc (abfd, - (fi->d.symbolic_header.ifdMax * - sizeof (struct fdr)))); + amt = fi->d.symbolic_header.ifdMax * sizeof (struct fdr); + fi->d.fdr = (struct fdr *) bfd_alloc (abfd, amt); if (fi->d.fdr == NULL) { msec->flags = origflags; @@ -2176,18 +2817,21 @@ elf64_alpha_output_extsym (h, data) boolean strip; asection *sec, *output_section; + if (h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link; + if (h->root.indx == -2) strip = false; else if (((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 - || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0) - && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 - && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0) + || (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) != 0) + && (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0 + && (h->root.elf_link_hash_flags & ELF_LINK_HASH_REF_REGULAR) == 0) strip = true; else if (einfo->info->strip == strip_all - || (einfo->info->strip == strip_some - && bfd_hash_lookup (einfo->info->keep_hash, - h->root.root.root.string, - false, false) == NULL)) + || (einfo->info->strip == strip_some + && bfd_hash_lookup (einfo->info->keep_hash, + h->root.root.root.string, + false, false) == NULL)) strip = true; else strip = false; @@ -2206,44 +2850,44 @@ elf64_alpha_output_extsym (h, data) h->esym.asym.st = stGlobal; if (h->root.root.type != bfd_link_hash_defined - && h->root.root.type != bfd_link_hash_defweak) - h->esym.asym.sc = scAbs; + && h->root.root.type != bfd_link_hash_defweak) + h->esym.asym.sc = scAbs; else - { - const char *name; - - sec = h->root.root.u.def.section; - output_section = sec->output_section; - - /* When making a shared library and symbol h is the one from - the another shared library, OUTPUT_SECTION may be null. */ - if (output_section == NULL) - h->esym.asym.sc = scUndefined; - else - { - name = bfd_section_name (output_section->owner, output_section); - - if (strcmp (name, ".text") == 0) - h->esym.asym.sc = scText; - else if (strcmp (name, ".data") == 0) - h->esym.asym.sc = scData; - else if (strcmp (name, ".sdata") == 0) - h->esym.asym.sc = scSData; - else if (strcmp (name, ".rodata") == 0 - || strcmp (name, ".rdata") == 0) - h->esym.asym.sc = scRData; - else if (strcmp (name, ".bss") == 0) - h->esym.asym.sc = scBss; - else if (strcmp (name, ".sbss") == 0) - h->esym.asym.sc = scSBss; - else if (strcmp (name, ".init") == 0) - h->esym.asym.sc = scInit; - else if (strcmp (name, ".fini") == 0) - h->esym.asym.sc = scFini; - else - h->esym.asym.sc = scAbs; - } - } + { + const char *name; + + sec = h->root.root.u.def.section; + output_section = sec->output_section; + + /* When making a shared library and symbol h is the one from + the another shared library, OUTPUT_SECTION may be null. */ + if (output_section == NULL) + h->esym.asym.sc = scUndefined; + else + { + name = bfd_section_name (output_section->owner, output_section); + + if (strcmp (name, ".text") == 0) + h->esym.asym.sc = scText; + else if (strcmp (name, ".data") == 0) + h->esym.asym.sc = scData; + else if (strcmp (name, ".sdata") == 0) + h->esym.asym.sc = scSData; + else if (strcmp (name, ".rodata") == 0 + || strcmp (name, ".rdata") == 0) + h->esym.asym.sc = scRData; + else if (strcmp (name, ".bss") == 0) + h->esym.asym.sc = scBss; + else if (strcmp (name, ".sbss") == 0) + h->esym.asym.sc = scSBss; + else if (strcmp (name, ".init") == 0) + h->esym.asym.sc = scInit; + else if (strcmp (name, ".fini") == 0) + h->esym.asym.sc = scFini; + else + h->esym.asym.sc = scAbs; + } + } h->esym.asym.reserved = 0; h->esym.asym.index = indexNil; @@ -2255,18 +2899,18 @@ elf64_alpha_output_extsym (h, data) || h->root.root.type == bfd_link_hash_defweak) { if (h->esym.asym.sc == scCommon) - h->esym.asym.sc = scBss; + h->esym.asym.sc = scBss; else if (h->esym.asym.sc == scSCommon) - h->esym.asym.sc = scSBss; + h->esym.asym.sc = scSBss; sec = h->root.root.u.def.section; output_section = sec->output_section; if (output_section != NULL) - h->esym.asym.value = (h->root.root.u.def.value - + sec->output_offset - + output_section->vma); + h->esym.asym.value = (h->root.root.u.def.value + + sec->output_offset + + output_section->vma); else - h->esym.asym.value = 0; + h->esym.asym.value = 0; } else if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) { @@ -2279,20 +2923,17 @@ elf64_alpha_output_extsym (h, data) { output_section = sec->output_section; if (output_section != NULL) - h->esym.asym.value = (h->root.plt_offset + h->esym.asym.value = (h->root.plt.offset + sec->output_offset + output_section->vma); else h->esym.asym.value = 0; } -#if 0 /* FIXME? */ - h->esym.ifd = 0; -#endif } if (! bfd_ecoff_debug_one_external (einfo->abfd, einfo->debug, einfo->swap, - h->root.root.root.string, - &h->esym)) + h->root.root.root.string, + &h->esym)) { einfo->failed = true; return false; @@ -2300,18 +2941,87 @@ elf64_alpha_output_extsym (h, data) return true; } + +/* Search for and possibly create a got entry. */ -/* FIXME: Create a runtime procedure table from the .mdebug section. - -static boolean -mips_elf_create_procedure_table (handle, abfd, info, s, debug) - PTR handle; +static struct alpha_elf_got_entry * +get_got_entry (abfd, h, r_type, r_symndx, r_addend) bfd *abfd; - struct bfd_link_info *info; - asection *s; - struct ecoff_debug_info *debug; -*/ - + struct alpha_elf_link_hash_entry *h; + unsigned long r_type, r_symndx; + bfd_vma r_addend; +{ + struct alpha_elf_got_entry *gotent; + struct alpha_elf_got_entry **slot; + + if (h) + slot = &h->got_entries; + else + { + /* This is a local .got entry -- record for merge. */ + + struct alpha_elf_got_entry **local_got_entries; + + local_got_entries = alpha_elf_tdata(abfd)->local_got_entries; + if (!local_got_entries) + { + bfd_size_type size; + Elf_Internal_Shdr *symtab_hdr; + + symtab_hdr = &elf_tdata(abfd)->symtab_hdr; + size = symtab_hdr->sh_info; + size *= sizeof (struct alpha_elf_got_entry *); + + local_got_entries + = (struct alpha_elf_got_entry **) bfd_alloc (abfd, size); + if (!local_got_entries) + return NULL; + + memset (local_got_entries, 0, (size_t) size); + alpha_elf_tdata (abfd)->local_got_entries = local_got_entries; + } + + slot = &local_got_entries[r_symndx]; + } + + for (gotent = *slot; gotent ; gotent = gotent->next) + if (gotent->gotobj == abfd + && gotent->reloc_type == r_type + && gotent->addend == r_addend) + break; + + if (!gotent) + { + int entry_size; + bfd_size_type amt; + + amt = sizeof (struct alpha_elf_got_entry); + gotent = (struct alpha_elf_got_entry *) bfd_alloc (abfd, amt); + if (!gotent) + return NULL; + + gotent->gotobj = abfd; + gotent->addend = r_addend; + gotent->got_offset = -1; + gotent->use_count = 1; + gotent->reloc_type = r_type; + gotent->reloc_done = 0; + gotent->reloc_xlated = 0; + + gotent->next = *slot; + *slot = gotent; + + entry_size = alpha_got_entry_size (r_type); + alpha_elf_tdata (abfd)->total_got_size += entry_size; + if (!h) + alpha_elf_tdata(abfd)->local_got_size += entry_size; + } + else + gotent->use_count += 1; + + return gotent; +} + /* Handle dynamic relocations when doing an Alpha ELF link. */ static boolean @@ -2326,9 +3036,9 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) const char *rel_sec_name; Elf_Internal_Shdr *symtab_hdr; struct alpha_elf_link_hash_entry **sym_hashes; - struct alpha_elf_got_entry **local_got_entries; const Elf_Internal_Rela *rel, *relend; - int got_created; + boolean got_created; + bfd_size_type amt; if (info->relocateable) return true; @@ -2341,14 +3051,23 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) rel_sec_name = NULL; symtab_hdr = &elf_tdata(abfd)->symtab_hdr; sym_hashes = alpha_elf_sym_hashes(abfd); - local_got_entries = alpha_elf_tdata(abfd)->local_got_entries; - got_created = 0; + got_created = false; relend = relocs + sec->reloc_count; for (rel = relocs; rel < relend; ++rel) { + enum { + NEED_GOT = 1, + NEED_GOT_ENTRY = 2, + NEED_DYNREL = 4 + }; + unsigned long r_symndx, r_type; struct alpha_elf_link_hash_entry *h; + unsigned int gotent_flags; + boolean maybe_dynamic; + unsigned int need; + bfd_vma addend; r_symndx = ELF64_R_SYM (rel->r_info); if (r_symndx < symtab_hdr->sh_info) @@ -2363,133 +3082,79 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) h->root.elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR; } + + /* We can only get preliminary data on whether a symbol is + locally or externally defined, as not all of the input files + have yet been processed. Do something with what we know, as + this may help reduce memory usage and processing time later. */ + maybe_dynamic = false; + if (h && ((info->shared + && (!info->symbolic || info->allow_shlib_undefined)) + || ! (h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) + || h->root.root.type == bfd_link_hash_defweak)) + maybe_dynamic = true; + + need = 0; + gotent_flags = 0; r_type = ELF64_R_TYPE (rel->r_info); + addend = rel->r_addend; switch (r_type) { case R_ALPHA_LITERAL: - { - struct alpha_elf_got_entry *gotent; - int flags = 0; + need = NEED_GOT | NEED_GOT_ENTRY; + + /* Remember how this literal is used from its LITUSEs. + This will be important when it comes to decide if we can + create a .plt entry for a function symbol. */ + while (++rel < relend && ELF64_R_TYPE (rel->r_info) == R_ALPHA_LITUSE) + if (rel->r_addend >= 1 && rel->r_addend <= 5) + gotent_flags |= 1 << rel->r_addend; + --rel; + + /* No LITUSEs -- presumably the address is used somehow. */ + if (gotent_flags == 0) + gotent_flags = ALPHA_ELF_LINK_HASH_LU_ADDR; + break; - if (h) - { - /* Search for and possibly create a got entry. */ - for (gotent = h->got_entries; gotent ; gotent = gotent->next) - if (gotent->gotobj == abfd && - gotent->addend == rel->r_addend) - break; + case R_ALPHA_GPDISP: + case R_ALPHA_GPREL16: + case R_ALPHA_GPREL32: + case R_ALPHA_GPRELHIGH: + case R_ALPHA_GPRELLOW: + case R_ALPHA_BRSGP: + need = NEED_GOT; + break; - if (!gotent) - { - gotent = ((struct alpha_elf_got_entry *) - bfd_alloc (abfd, - sizeof (struct alpha_elf_got_entry))); - if (!gotent) - return false; - - gotent->gotobj = abfd; - gotent->addend = rel->r_addend; - gotent->got_offset = -1; - gotent->flags = 0; - gotent->use_count = 1; - - gotent->next = h->got_entries; - h->got_entries = gotent; - - alpha_elf_tdata (abfd)->total_got_entries++; - } - else - gotent->use_count += 1; - } - else - { - /* This is a local .got entry -- record for merge. */ - if (!local_got_entries) - { - size_t size; - size = (symtab_hdr->sh_info - * sizeof (struct alpha_elf_got_entry *)); - - local_got_entries = ((struct alpha_elf_got_entry **) - bfd_alloc (abfd, size)); - if (!local_got_entries) - return false; - - memset (local_got_entries, 0, size); - alpha_elf_tdata (abfd)->local_got_entries = - local_got_entries; - } + case R_ALPHA_REFLONG: + case R_ALPHA_REFQUAD: + if (info->shared || maybe_dynamic) + need = NEED_DYNREL; + break; - for (gotent = local_got_entries[ELF64_R_SYM(rel->r_info)]; - gotent != NULL && gotent->addend != rel->r_addend; - gotent = gotent->next) - continue; - if (!gotent) - { - gotent = ((struct alpha_elf_got_entry *) - bfd_alloc (abfd, - sizeof (struct alpha_elf_got_entry))); - if (!gotent) - return false; - - gotent->gotobj = abfd; - gotent->addend = rel->r_addend; - gotent->got_offset = -1; - gotent->flags = 0; - gotent->use_count = 1; - - gotent->next = local_got_entries[ELF64_R_SYM(rel->r_info)]; - local_got_entries[ELF64_R_SYM(rel->r_info)] = gotent; - - alpha_elf_tdata(abfd)->total_got_entries++; - alpha_elf_tdata(abfd)->n_local_got_entries++; - } - else - gotent->use_count += 1; - } + case R_ALPHA_TLSGD: + case R_ALPHA_TLSLDM: + case R_ALPHA_GOTDTPREL: + need = NEED_GOT | NEED_GOT_ENTRY; + break; - /* Remember how this literal is used from its LITUSEs. - This will be important when it comes to decide if we can - create a .plt entry for a function symbol. */ - if (rel+1 < relend - && ELF64_R_TYPE (rel[1].r_info) == R_ALPHA_LITUSE) - { - do - { - ++rel; - if (rel->r_addend >= 1 && rel->r_addend <= 3) - flags |= 1 << rel->r_addend; - } - while (rel+1 < relend && - ELF64_R_TYPE (rel[1].r_info) == R_ALPHA_LITUSE); - } - else - { - /* No LITUSEs -- presumably the address is not being - loaded for nothing. */ - flags = ALPHA_ELF_LINK_HASH_LU_ADDR; - } + case R_ALPHA_GOTTPREL: + need = NEED_GOT | NEED_GOT_ENTRY; + gotent_flags = ALPHA_ELF_LINK_HASH_TLS_IE; + if (info->shared) + info->flags |= DF_STATIC_TLS; + break; - gotent->flags |= flags; - if (h) - { - /* Make a guess as to whether a .plt entry will be needed. */ - if ((h->flags |= flags) == ALPHA_ELF_LINK_HASH_LU_FUNC) - h->root.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; - else - h->root.elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; - } - } - /* FALLTHRU */ + case R_ALPHA_TPREL64: + if (info->shared || maybe_dynamic) + need = NEED_DYNREL; + if (info->shared) + info->flags |= DF_STATIC_TLS; + break; + } - case R_ALPHA_GPDISP: - case R_ALPHA_GPREL32: - case R_ALPHA_GPRELHIGH: - case R_ALPHA_GPRELLOW: - /* We don't actually use the .got here, but the sections must - be created before the linker maps input sections to output - sections. */ + if (need & NEED_GOT) + { if (!got_created) { if (!elf64_alpha_create_got_section (abfd, info)) @@ -2503,17 +3168,36 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) got_created = 1; } - break; + } - case R_ALPHA_SREL16: - case R_ALPHA_SREL32: - case R_ALPHA_SREL64: - if (h == NULL) - break; - /* FALLTHRU */ + if (need & NEED_GOT_ENTRY) + { + struct alpha_elf_got_entry *gotent; - case R_ALPHA_REFLONG: - case R_ALPHA_REFQUAD: + gotent = get_got_entry (abfd, h, r_type, r_symndx, addend); + if (!gotent) + return false; + + if (gotent_flags) + { + gotent->flags |= gotent_flags; + if (h) + { + gotent_flags |= h->flags; + h->flags = gotent_flags; + + /* Make a guess as to whether a .plt entry is needed. */ + if ((gotent_flags & ALPHA_ELF_LINK_HASH_LU_FUNC) + && !(gotent_flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC)) + h->root.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; + else + h->root.elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; + } + } + } + + if (need & NEED_DYNREL) + { if (rel_sec_name == NULL) { rel_sec_name = (bfd_elf_string_from_elf_section @@ -2536,14 +3220,15 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) sreloc = bfd_get_section_by_name (dynobj, rel_sec_name); if (sreloc == NULL) { + flagword flags; + sreloc = bfd_make_section (dynobj, rel_sec_name); + flags = (SEC_HAS_CONTENTS | SEC_IN_MEMORY + | SEC_LINKER_CREATED | SEC_READONLY); + if (sec->flags & SEC_ALLOC) + flags |= SEC_ALLOC | SEC_LOAD; if (sreloc == NULL - || !bfd_set_section_flags (dynobj, sreloc, - (SEC_ALLOC|SEC_LOAD - | SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY)) + || !bfd_set_section_flags (dynobj, sreloc, flags) || !bfd_set_section_alignment (dynobj, sreloc, 3)) return false; } @@ -2555,7 +3240,7 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) don't know whether we'll actually need a dynamic relocation entry for this reloc. So make a record of it. Once we find out if this thing needs dynamic relocation we'll - expand the relocation sections by the appropriate amount. */ + expand the relocation sections by the appropriate amount. */ struct alpha_elf_reloc_entry *rent; @@ -2565,15 +3250,16 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) if (!rent) { - rent = ((struct alpha_elf_reloc_entry *) - bfd_alloc (abfd, - sizeof (struct alpha_elf_reloc_entry))); + amt = sizeof (struct alpha_elf_reloc_entry); + rent = (struct alpha_elf_reloc_entry *) bfd_alloc (abfd, amt); if (!rent) return false; rent->srel = sreloc; rent->rtype = r_type; rent->count = 1; + rent->reltext = ((sec->flags & (SEC_READONLY | SEC_ALLOC)) + == (SEC_READONLY | SEC_ALLOC)); rent->next = h->reloc_entries; h->reloc_entries = rent; @@ -2583,10 +3269,13 @@ elf64_alpha_check_relocs (abfd, info, sec, relocs) } else if (info->shared) { - /* If this is a shared library, we need a RELATIVE reloc. */ + /* If this is a shared library, and the section is to be + loaded into memory, we need a RELATIVE reloc. */ sreloc->_raw_size += sizeof (Elf64_External_Rela); + if ((sec->flags & (SEC_READONLY | SEC_ALLOC)) + == (SEC_READONLY | SEC_ALLOC)) + info->flags |= DF_TEXTREL; } - break; } } @@ -2614,12 +3303,12 @@ elf64_alpha_adjust_dynamic_symbol (info, h) /* Now that we've seen all of the input symbols, finalize our decision about whether this symbol should get a .plt entry. */ - if (h->root.type != bfd_link_hash_undefweak - && alpha_elf_dynamic_symbol_p (h, info) + if (alpha_elf_dynamic_symbol_p (h, info) && ((h->type == STT_FUNC && !(ah->flags & ALPHA_ELF_LINK_HASH_LU_ADDR)) || (h->type == STT_NOTYPE - && ah->flags == ALPHA_ELF_LINK_HASH_LU_FUNC)) + && (ah->flags & ALPHA_ELF_LINK_HASH_LU_FUNC) + && !(ah->flags & ~ALPHA_ELF_LINK_HASH_LU_FUNC))) /* Don't prevent otherwise valid programs from linking by attempting to create a new .got entry somewhere. A Correct Solution would be to add a new .got section to a new object file and let it be merged @@ -2636,17 +3325,18 @@ elf64_alpha_adjust_dynamic_symbol (info, h) if (s->_raw_size == 0) s->_raw_size = PLT_HEADER_SIZE; - h->plt_offset = s->_raw_size; + h->plt.offset = s->_raw_size; s->_raw_size += PLT_ENTRY_SIZE; /* If this symbol is not defined in a regular file, and we are not generating a shared library, then set the symbol to the location in the .plt. This is required to make function pointers compare equal between the normal executable and the shared library. */ - if (!info->shared) + if (! info->shared + && h->root.type != bfd_link_hash_defweak) { h->root.u.def.section = s; - h->root.u.def.value = h->plt_offset; + h->root.u.def.value = h->plt.offset; } /* We also need a JMP_SLOT entry in the .rela.plt section. */ @@ -2686,7 +3376,7 @@ elf64_alpha_adjust_dynamic_symbol (info, h) static boolean elf64_alpha_merge_ind_symbols (hi, dummy) struct alpha_elf_link_hash_entry *hi; - PTR dummy; + PTR dummy ATTRIBUTE_UNUSED; { struct alpha_elf_link_hash_entry *hs; @@ -2715,8 +3405,13 @@ elf64_alpha_merge_ind_symbols (hi, dummy) { gin = gi->next; for (gs = gsh; gs ; gs = gs->next) - if (gi->gotobj == gs->gotobj && gi->addend == gs->addend) - goto got_found; + if (gi->gotobj == gs->gotobj + && gi->reloc_type == gs->reloc_type + && gi->addend == gs->addend) + { + gi->use_count += gs->use_count; + goto got_found; + } gi->next = hs->got_entries; hs->got_entries = gi; got_found:; @@ -2758,52 +3453,57 @@ static boolean elf64_alpha_can_merge_gots (a, b) bfd *a, *b; { - int total = alpha_elf_tdata (a)->total_got_entries; + int total = alpha_elf_tdata (a)->total_got_size; + bfd *bsub; /* Trivial quick fallout test. */ - if (total + alpha_elf_tdata (b)->total_got_entries <= MAX_GOT_ENTRIES) + if (total + alpha_elf_tdata (b)->total_got_size <= MAX_GOT_SIZE) return true; /* By their nature, local .got entries cannot be merged. */ - if ((total += alpha_elf_tdata (b)->n_local_got_entries) > MAX_GOT_ENTRIES) + if ((total += alpha_elf_tdata (b)->local_got_size) > MAX_GOT_SIZE) return false; /* Failing the common trivial comparison, we must effectively perform the merge. Not actually performing the merge means that we don't have to store undo information in case we fail. */ - { - struct alpha_elf_link_hash_entry **hashes = alpha_elf_sym_hashes(b); - Elf_Internal_Shdr *symtab_hdr = &elf_tdata(b)->symtab_hdr; - int i, n; - - n = symtab_hdr->sh_size / symtab_hdr->sh_entsize - symtab_hdr->sh_info; - for (i = 0; i < n; ++i) - { - struct alpha_elf_got_entry *ae, *be; - struct alpha_elf_link_hash_entry *h; + for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next) + { + struct alpha_elf_link_hash_entry **hashes = alpha_elf_sym_hashes (bsub); + Elf_Internal_Shdr *symtab_hdr = &elf_tdata (bsub)->symtab_hdr; + int i, n; - h = hashes[i]; - while (h->root.root.type == bfd_link_hash_indirect - || h->root.root.type == bfd_link_hash_warning) - h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link; + n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info; + for (i = 0; i < n; ++i) + { + struct alpha_elf_got_entry *ae, *be; + struct alpha_elf_link_hash_entry *h; - for (be = h->got_entries; be ; be = be->next) - { - if (be->use_count == 0) - continue; - if (be->gotobj != b) - continue; + h = hashes[i]; + while (h->root.root.type == bfd_link_hash_indirect + || h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link; - for (ae = h->got_entries; ae ; ae = ae->next) - if (ae->gotobj == a && ae->addend == be->addend) - goto global_found; + for (be = h->got_entries; be ; be = be->next) + { + if (be->use_count == 0) + continue; + if (be->gotobj != b) + continue; + + for (ae = h->got_entries; ae ; ae = ae->next) + if (ae->gotobj == a + && ae->reloc_type == be->reloc_type + && ae->addend == be->addend) + goto global_found; - if (++total > MAX_GOT_ENTRIES) - return false; - global_found:; - } - } - } + total += alpha_got_entry_size (be->reloc_type); + if (total > MAX_GOT_SIZE) + return false; + global_found:; + } + } + } return true; } @@ -2814,79 +3514,93 @@ static void elf64_alpha_merge_gots (a, b) bfd *a, *b; { - int total = alpha_elf_tdata(a)->total_got_entries; + int total = alpha_elf_tdata (a)->total_got_size; + bfd *bsub; /* Remember local expansion. */ { - int e = alpha_elf_tdata(b)->n_local_got_entries; + int e = alpha_elf_tdata (b)->local_got_size; total += e; - alpha_elf_tdata(a)->n_local_got_entries += e; + alpha_elf_tdata (a)->local_got_size += e; } - /* Let the local .got entries know they are part of a new subsegment. */ - { - struct alpha_elf_got_entry **local_got_entries; - local_got_entries = alpha_elf_tdata(b)->local_got_entries; - if (local_got_entries) - { - int i, n; + for (bsub = b; bsub ; bsub = alpha_elf_tdata (bsub)->in_got_link_next) + { + struct alpha_elf_got_entry **local_got_entries; + struct alpha_elf_link_hash_entry **hashes; + Elf_Internal_Shdr *symtab_hdr; + int i, n; + + /* Let the local .got entries know they are part of a new subsegment. */ + local_got_entries = alpha_elf_tdata (bsub)->local_got_entries; + if (local_got_entries) + { + n = elf_tdata (bsub)->symtab_hdr.sh_info; + for (i = 0; i < n; ++i) + { + struct alpha_elf_got_entry *ent; + for (ent = local_got_entries[i]; ent; ent = ent->next) + ent->gotobj = a; + } + } - n = elf_tdata(b)->symtab_hdr.sh_info; - for (i = 0; i < n; ++i) - { - struct alpha_elf_got_entry *gotent; - for (gotent = local_got_entries[i]; gotent; gotent = gotent->next) - gotent->gotobj = a; - } - } - } + /* Merge the global .got entries. */ + hashes = alpha_elf_sym_hashes (bsub); + symtab_hdr = &elf_tdata (bsub)->symtab_hdr; - /* Merge the global .got entries. */ - { - struct alpha_elf_link_hash_entry **hashes = alpha_elf_sym_hashes(b); - Elf_Internal_Shdr *symtab_hdr = &elf_tdata(b)->symtab_hdr; - int i, n; + n = NUM_SHDR_ENTRIES (symtab_hdr) - symtab_hdr->sh_info; + for (i = 0; i < n; ++i) + { + struct alpha_elf_got_entry *ae, *be, **pbe, **start; + struct alpha_elf_link_hash_entry *h; - n = symtab_hdr->sh_size / symtab_hdr->sh_entsize - symtab_hdr->sh_info; - for (i = 0; i < n; ++i) - { - struct alpha_elf_got_entry *ae, *be, **pbe, **start; - struct alpha_elf_link_hash_entry *h; + h = hashes[i]; + while (h->root.root.type == bfd_link_hash_indirect + || h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link; - h = hashes[i]; - while (h->root.root.type == bfd_link_hash_indirect - || h->root.root.type == bfd_link_hash_warning) - h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link; + start = &h->got_entries; + for (pbe = start, be = *start; be ; pbe = &be->next, be = be->next) + { + if (be->use_count == 0) + { + *pbe = be->next; + continue; + } + if (be->gotobj != b) + continue; - start = &h->got_entries; - for (pbe = start, be = *start; be ; pbe = &be->next, be = be->next) - { - if (be->use_count == 0) - { - *pbe = be->next; - continue; - } - if (be->gotobj != b) - continue; + for (ae = *start; ae ; ae = ae->next) + if (ae->gotobj == a + && ae->reloc_type == be->reloc_type + && ae->addend == be->addend) + { + ae->flags |= be->flags; + ae->use_count += be->use_count; + *pbe = be->next; + goto global_found; + } + be->gotobj = a; + total += alpha_got_entry_size (be->reloc_type); - for (ae = *start; ae ; ae = ae->next) - if (ae->gotobj == a && ae->addend == be->addend) - { - ae->flags |= be->flags; - ae->use_count += be->use_count; - *pbe = be->next; - goto global_found; - } - be->gotobj = a; - total += 1; + global_found:; + } + } - global_found:; - } - } - } + alpha_elf_tdata (bsub)->gotobj = a; + } + alpha_elf_tdata (a)->total_got_size = total; + + /* Merge the two in_got chains. */ + { + bfd *next; - alpha_elf_tdata(a)->total_got_entries = total; - alpha_elf_tdata(b)->gotobj = a; + bsub = a; + while ((next = alpha_elf_tdata (bsub)->in_got_link_next) != NULL) + bsub = next; + + alpha_elf_tdata (bsub)->in_got_link_next = b; + } } /* Calculate the offsets for the got entries. */ @@ -2894,10 +3608,13 @@ elf64_alpha_merge_gots (a, b) static boolean elf64_alpha_calc_got_offsets_for_symbol (h, arg) struct alpha_elf_link_hash_entry *h; - PTR arg; + PTR arg ATTRIBUTE_UNUSED; { struct alpha_elf_got_entry *gotent; + if (h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link; + for (gotent = h->got_entries; gotent; gotent = gotent->next) if (gotent->use_count > 0) { @@ -2905,7 +3622,7 @@ elf64_alpha_calc_got_offsets_for_symbol (h, arg) = &alpha_elf_tdata (gotent->gotobj)->got->_raw_size; gotent->got_offset = *plge; - *plge += 8; + *plge += alpha_got_entry_size (gotent->reloc_type); } return true; @@ -2947,7 +3664,7 @@ elf64_alpha_calc_got_offsets (info) if (gotent->use_count > 0) { gotent->got_offset = got_offset; - got_offset += 8; + got_offset += alpha_got_entry_size (gotent->reloc_type); } } @@ -2956,99 +3673,157 @@ elf64_alpha_calc_got_offsets (info) } } -/* Remove a section from the output BFD. */ - -static void -elf64_alpha_strip_section_from_output (s) - asection *s; -{ - asection **spp; - - for (spp = &s->output_section->owner->sections; - *spp != s->output_section; - spp = &(*spp)->next) - continue; - *spp = s->output_section->next; - --s->output_section->owner->section_count; -} - /* Constructs the gots. */ static boolean -elf64_alpha_size_got_sections (output_bfd, info) - bfd *output_bfd; +elf64_alpha_size_got_sections (info) struct bfd_link_info *info; { - bfd *i, *got_list, *cur_got_obj, **cur_got_tail; - int ngots; - - ngots = 0; - got_list = NULL; - cur_got_obj = NULL; - cur_got_tail = NULL; - for (i = info->input_bfds; i ; i = i->link_next) + bfd *i, *got_list, *cur_got_obj = NULL; + int something_changed = 0; + + got_list = alpha_elf_hash_table (info)->got_list; + + /* On the first time through, pretend we have an existing got list + consisting of all of the input files. */ + if (got_list == NULL) { - bfd *this_got = alpha_elf_tdata (i)->gotobj; + for (i = info->input_bfds; i ; i = i->link_next) + { + bfd *this_got = alpha_elf_tdata (i)->gotobj; + if (this_got == NULL) + continue; - /* Don't play if there is no .got for this input file. */ - if (this_got == NULL) - continue; + /* We are assuming no merging has yet ocurred. */ + BFD_ASSERT (this_got == i); + + if (alpha_elf_tdata (this_got)->total_got_size > MAX_GOT_SIZE) + { + /* Yikes! A single object file has too many entries. */ + (*_bfd_error_handler) + (_("%s: .got subsegment exceeds 64K (size %d)"), + bfd_archive_filename (i), + alpha_elf_tdata (this_got)->total_got_size); + return false; + } + + if (got_list == NULL) + got_list = this_got; + else + alpha_elf_tdata(cur_got_obj)->got_link_next = this_got; + cur_got_obj = this_got; + } + + /* Strange degenerate case of no got references. */ + if (got_list == NULL) + return true; + + alpha_elf_hash_table (info)->got_list = got_list; - if (alpha_elf_tdata (this_got)->total_got_entries > MAX_GOT_ENTRIES) + /* Force got offsets to be recalculated. */ + something_changed = 1; + } + + cur_got_obj = got_list; + i = alpha_elf_tdata(cur_got_obj)->got_link_next; + while (i != NULL) + { + if (elf64_alpha_can_merge_gots (cur_got_obj, i)) { - /* Yikes! A single object file has too many entries. */ - (*_bfd_error_handler) - (_("%s: .got subsegment exceeds 64K (size %d)"), - bfd_get_filename(i), - alpha_elf_tdata(this_got)->total_got_entries * 8); - return false; + elf64_alpha_merge_gots (cur_got_obj, i); + i = alpha_elf_tdata(i)->got_link_next; + alpha_elf_tdata(cur_got_obj)->got_link_next = i; + something_changed = 1; + } + else + { + cur_got_obj = i; + i = alpha_elf_tdata(i)->got_link_next; } + } + + /* Once the gots have been merged, fill in the got offsets for + everything therein. */ + if (1 || something_changed) + elf64_alpha_calc_got_offsets (info); + + return true; +} + +/* Called from relax_section to rebuild the PLT in light of + potential changes in the function's status. */ + +static boolean +elf64_alpha_size_plt_section (info) + struct bfd_link_info *info; +{ + asection *splt, *spltrel; + unsigned long entries; + bfd *dynobj; + + dynobj = elf_hash_table(info)->dynobj; + splt = bfd_get_section_by_name(dynobj, ".plt"); + if (splt == NULL) + return true; + + splt->_raw_size = 0; + + alpha_elf_link_hash_traverse (alpha_elf_hash_table (info), + elf64_alpha_size_plt_section_1, splt); + + splt->_cooked_size = splt->_raw_size; + + /* Every plt entry requires a JMP_SLOT relocation. */ + spltrel = bfd_get_section_by_name (dynobj, ".rela.plt"); + if (splt->_raw_size) + entries = (splt->_raw_size - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; + else + entries = 0; + spltrel->_raw_size = entries * sizeof (Elf64_External_Rela); + spltrel->_cooked_size = spltrel->_raw_size; + + return true; +} + +static boolean +elf64_alpha_size_plt_section_1 (h, data) + struct alpha_elf_link_hash_entry *h; + PTR data; +{ + asection *splt = (asection *) data; + struct alpha_elf_got_entry *gotent; - if (cur_got_obj) - { - if (this_got == cur_got_obj) - ; /* Some previous pass merged us already. */ - else if (elf64_alpha_can_merge_gots (cur_got_obj, i)) - { - elf64_alpha_merge_gots (cur_got_obj, i); - *cur_got_tail = i; - } - else - { - if (++ngots == 2) - { - (*info->callbacks->warning) - (info, _("using multiple gp values"), (char *) NULL, - output_bfd, (asection *) NULL, (bfd_vma) 0); - } - *cur_got_tail = NULL; - alpha_elf_tdata(cur_got_obj)->got_link_next = got_list; - got_list = cur_got_obj; - cur_got_obj = i; - } - } - else - { - ++ngots; - cur_got_obj = i; - } - cur_got_tail = &alpha_elf_tdata(i)->in_got_link_next; - } + /* If we didn't need an entry before, we still don't. */ + if (!(h->root.elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT)) + return true; - if (cur_got_obj) - alpha_elf_tdata (cur_got_obj)->got_link_next = got_list; - alpha_elf_hash_table (info)->got_list = cur_got_obj; + /* There must still be a LITERAL got entry for the function. */ + for (gotent = h->got_entries; gotent ; gotent = gotent->next) + if (gotent->reloc_type == R_ALPHA_LITERAL + && gotent->use_count > 0) + break; - /* Once the gots have been merged, fill in the got offsets for everything - therein. */ - elf64_alpha_calc_got_offsets (info); + /* If there is, reset the PLT offset. If not, there's no longer + a need for the PLT entry. */ + if (gotent) + { + if (splt->_raw_size == 0) + splt->_raw_size = PLT_HEADER_SIZE; + h->root.plt.offset = splt->_raw_size; + splt->_raw_size += PLT_ENTRY_SIZE; + } + else + { + h->root.elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; + h->root.plt.offset = -1; + } return true; } static boolean elf64_alpha_always_size_sections (output_bfd, info) - bfd *output_bfd; + bfd *output_bfd ATTRIBUTE_UNUSED; struct bfd_link_info *info; { bfd *i; @@ -3061,7 +3836,7 @@ elf64_alpha_always_size_sections (output_bfd, info) elf64_alpha_merge_ind_symbols, NULL); - if (!elf64_alpha_size_got_sections (output_bfd, info)) + if (!elf64_alpha_size_got_sections (info)) return false; /* Allocate space for all of the .got subsections. */ @@ -3080,6 +3855,40 @@ elf64_alpha_always_size_sections (output_bfd, info) return true; } +/* The number of dynamic relocations required by a static relocation. */ + +static int +alpha_dynamic_entries_for_reloc (r_type, dynamic, shared) + int r_type, dynamic, shared; +{ + switch (r_type) + { + /* May appear in GOT entries. */ + case R_ALPHA_TLSGD: + return (dynamic ? 2 : shared ? 1 : 0); + case R_ALPHA_TLSLDM: + return shared; + case R_ALPHA_LITERAL: + return dynamic || shared; + case R_ALPHA_GOTDTPREL: + case R_ALPHA_GOTTPREL: + return dynamic; + + /* May appear in data sections. */ + case R_ALPHA_REFLONG: + case R_ALPHA_REFQUAD: + return dynamic || shared; + case R_ALPHA_SREL64: + case R_ALPHA_TPREL64: + return dynamic; + + /* Everything else is illegal. We'll issue an error during + relocate_section. */ + default: + return 0; + } +} + /* Work out the sizes of the dynamic relocation entries. */ static boolean @@ -3087,6 +3896,13 @@ elf64_alpha_calc_dynrel_sizes (h, info) struct alpha_elf_link_hash_entry *h; struct bfd_link_info *info; { + boolean dynamic; + struct alpha_elf_reloc_entry *relent; + unsigned long entries; + + if (h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link; + /* If the symbol was defined as a common symbol in a regular object file, and there was no definition in any dynamic object, then the linker will have allocated space for the symbol in a common @@ -3102,55 +3918,123 @@ elf64_alpha_calc_dynrel_sizes (h, info) && (h->root.root.type == bfd_link_hash_defined || h->root.root.type == bfd_link_hash_defweak) && !(h->root.root.u.def.section->owner->flags & DYNAMIC)) - { - h->root.elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; - } + h->root.elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR; /* If the symbol is dynamic, we'll need all the relocations in their - natural form. If it has been forced local, we'll need the same - number of RELATIVE relocations. */ - if (alpha_elf_dynamic_symbol_p (&h->root, info) - || (info->shared && h->root.dynindx == -1)) - { - struct alpha_elf_reloc_entry *relent; + natural form. If this is a shared object, and it has been forced + local, we'll need the same number of RELATIVE relocations. */ + + dynamic = alpha_elf_dynamic_symbol_p (&h->root, info); - for (relent = h->reloc_entries; relent; relent = relent->next) + for (relent = h->reloc_entries; relent; relent = relent->next) + { + entries = alpha_dynamic_entries_for_reloc (relent->rtype, dynamic, + info->shared); + if (entries) { relent->srel->_raw_size += - sizeof (Elf64_External_Rela) * relent->count; + entries * sizeof (Elf64_External_Rela) * relent->count; + if (relent->reltext) + info->flags |= DT_TEXTREL; } + } + + return true; +} + +/* Set the sizes of the dynamic relocation sections. */ + +static boolean +elf64_alpha_size_rela_got_section (info) + struct bfd_link_info *info; +{ + unsigned long entries; + bfd *i, *dynobj; + asection *srel; - /* Only add a .rela.got entry if we're not using a .plt entry. */ - if (h->root.plt_offset == MINUS_ONE) + /* Shared libraries often require RELATIVE relocs, and some relocs + require attention for the main application as well. */ + + entries = 0; + for (i = alpha_elf_hash_table(info)->got_list; + i ; i = alpha_elf_tdata(i)->got_link_next) + { + bfd *j; + + for (j = i; j ; j = alpha_elf_tdata(j)->in_got_link_next) { - bfd *dynobj = elf_hash_table(info)->dynobj; - struct alpha_elf_got_entry *gotent; - bfd_size_type count = 0; - asection *srel; + struct alpha_elf_got_entry **local_got_entries, *gotent; + int k, n; - for (gotent = h->got_entries; gotent ; gotent = gotent->next) - count++; - if (count > 0) - { - srel = bfd_get_section_by_name (dynobj, ".rela.got"); - BFD_ASSERT (srel != NULL); - srel->_raw_size += sizeof (Elf64_External_Rela) * count; - } + local_got_entries = alpha_elf_tdata(j)->local_got_entries; + if (!local_got_entries) + continue; + + for (k = 0, n = elf_tdata(j)->symtab_hdr.sh_info; k < n; ++k) + for (gotent = local_got_entries[k]; + gotent ; gotent = gotent->next) + if (gotent->use_count > 0) + entries += (alpha_dynamic_entries_for_reloc + (gotent->reloc_type, 0, info->shared)); } } - /* Otherwise, shared objects require RELATIVE relocs for all REFQUAD - and REFLONG relocations. */ - else if (info->shared) + + dynobj = elf_hash_table(info)->dynobj; + srel = bfd_get_section_by_name (dynobj, ".rela.got"); + if (!srel) { - struct alpha_elf_reloc_entry *relent; + BFD_ASSERT (entries == 0); + return true; + } + srel->_raw_size = sizeof (Elf64_External_Rela) * entries; - for (relent = h->reloc_entries; relent; relent = relent->next) - if (relent->rtype == R_ALPHA_REFLONG - || relent->rtype == R_ALPHA_REFQUAD) - { - relent->srel->_raw_size += - sizeof(Elf64_External_Rela) * relent->count; - } + /* Now do the non-local symbols. */ + alpha_elf_link_hash_traverse (alpha_elf_hash_table (info), + elf64_alpha_size_rela_got_1, info); + + srel->_cooked_size = srel->_raw_size; + + return true; +} + +/* Subroutine of elf64_alpha_size_rela_got_section for doing the + global symbols. */ + +static boolean +elf64_alpha_size_rela_got_1 (h, info) + struct alpha_elf_link_hash_entry *h; + struct bfd_link_info *info; +{ + boolean dynamic; + struct alpha_elf_got_entry *gotent; + unsigned long entries; + + if (h->root.root.type == bfd_link_hash_warning) + h = (struct alpha_elf_link_hash_entry *) h->root.root.u.i.link; + + /* If the symbol is dynamic, we'll need all the relocations in their + natural form. If this is a shared object, and it has been forced + local, we'll need the same number of RELATIVE relocations. */ + + dynamic = alpha_elf_dynamic_symbol_p (&h->root, info); + + entries = 0; + for (gotent = h->got_entries; gotent ; gotent = gotent->next) + if (gotent->use_count > 0) + entries += alpha_dynamic_entries_for_reloc (gotent->reloc_type, + dynamic, info->shared); + + /* If we are using a .plt entry, subtract one, as the first + reference uses a .rela.plt entry instead. */ + if (h->root.plt.offset != MINUS_ONE) + entries--; + + if (entries > 0) + { + bfd *dynobj = elf_hash_table(info)->dynobj; + asection *srel = bfd_get_section_by_name (dynobj, ".rela.got"); + BFD_ASSERT (srel != NULL); + srel->_raw_size += sizeof (Elf64_External_Rela) * entries; } return true; @@ -3160,12 +4044,11 @@ elf64_alpha_calc_dynrel_sizes (h, info) static boolean elf64_alpha_size_dynamic_sections (output_bfd, info) - bfd *output_bfd; + bfd *output_bfd ATTRIBUTE_UNUSED; struct bfd_link_info *info; { bfd *dynobj; asection *s; - boolean reltext; boolean relplt; dynobj = elf_hash_table(info)->dynobj; @@ -3187,34 +4070,15 @@ elf64_alpha_size_dynamic_sections (output_bfd, info) collected information in check_relocs that we can now apply to size the dynamic relocation sections. */ alpha_elf_link_hash_traverse (alpha_elf_hash_table (info), - elf64_alpha_calc_dynrel_sizes, - info); - - /* When building shared libraries, each local .got entry needs a - RELATIVE reloc. */ - if (info->shared) - { - bfd *i; - asection *srel; - bfd_size_type count; - - srel = bfd_get_section_by_name (dynobj, ".rela.got"); - BFD_ASSERT (srel != NULL); - - for (i = alpha_elf_hash_table(info)->got_list, count = 0; - i != NULL; - i = alpha_elf_tdata(i)->got_link_next) - count += alpha_elf_tdata(i)->n_local_got_entries; + elf64_alpha_calc_dynrel_sizes, info); - srel->_raw_size += count * sizeof(Elf64_External_Rela); - } + elf64_alpha_size_rela_got_section (info); } /* else we're not dynamic and by definition we don't need such things. */ /* The check_relocs and adjust_dynamic_symbol entry points have determined the sizes of the various dynamic sections. Allocate memory for them. */ - reltext = false; relplt = false; for (s = dynobj->sections; s != NULL; s = s->next) { @@ -3244,19 +4108,6 @@ elf64_alpha_size_dynamic_sections (output_bfd, info) if (!strip) { - const char *outname; - asection *target; - - /* If this relocation section applies to a read only - section, then we probably need a DT_TEXTREL entry. */ - outname = bfd_get_section_name (output_bfd, - s->output_section); - target = bfd_get_section_by_name (output_bfd, outname + 5); - if (target != NULL - && (target->flags & SEC_READONLY) != 0 - && (target->flags & SEC_ALLOC) != 0) - reltext = true; - if (strcmp(name, ".rela.plt") == 0) relplt = true; @@ -3272,44 +4123,16 @@ elf64_alpha_size_dynamic_sections (output_bfd, info) } if (strip) - elf64_alpha_strip_section_from_output (s); + _bfd_strip_section_from_output (info, s); else { /* Allocate memory for the section contents. */ - s->contents = (bfd_byte *) bfd_zalloc(dynobj, s->_raw_size); + s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); if (s->contents == NULL && s->_raw_size != 0) return false; } } - /* If we are generating a shared library, we generate a section - symbol for each output section. These are local symbols, which - means that they must come first in the dynamic symbol table. - That means we must increment the dynamic symbol index of every - other dynamic symbol. */ - if (info->shared) - { - long c[2], i; - asection *p; - - c[0] = 0; - c[1] = bfd_count_sections (output_bfd); - - elf_hash_table (info)->dynsymcount += c[1]; - elf_link_hash_traverse (elf_hash_table(info), - elf64_alpha_adjust_dynindx, - (PTR) c); - - for (i = 1, p = output_bfd->sections; - p != NULL; - p = p->next, i++) - { - elf_section_data (p)->dynindx = i; - /* These symbols will have no names, so we don't need to - fiddle with dynstr_index. */ - } - } - if (elf_hash_table (info)->dynamic_sections_created) { /* Add some entries to the .dynamic section. We fill in the @@ -3317,53 +4140,105 @@ elf64_alpha_size_dynamic_sections (output_bfd, info) must add the entries now so that we get the correct size for the .dynamic section. The DT_DEBUG entry is filled in by the dynamic linker and used by the debugger. */ +#define add_dynamic_entry(TAG, VAL) \ + bfd_elf64_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) + if (!info->shared) { - if (!bfd_elf64_add_dynamic_entry (info, DT_DEBUG, 0)) + if (!add_dynamic_entry (DT_DEBUG, 0)) return false; } - if (! bfd_elf64_add_dynamic_entry (info, DT_PLTGOT, 0)) + if (!add_dynamic_entry (DT_PLTGOT, 0)) return false; if (relplt) { - if (! bfd_elf64_add_dynamic_entry (info, DT_PLTRELSZ, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_PLTREL, DT_RELA) - || ! bfd_elf64_add_dynamic_entry (info, DT_JMPREL, 0)) + if (!add_dynamic_entry (DT_PLTRELSZ, 0) + || !add_dynamic_entry (DT_PLTREL, DT_RELA) + || !add_dynamic_entry (DT_JMPREL, 0)) return false; } - if (! bfd_elf64_add_dynamic_entry (info, DT_RELA, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_RELASZ, 0) - || ! bfd_elf64_add_dynamic_entry (info, DT_RELAENT, - sizeof(Elf64_External_Rela))) + if (!add_dynamic_entry (DT_RELA, 0) + || !add_dynamic_entry (DT_RELASZ, 0) + || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) return false; - if (reltext) + if (info->flags & DF_TEXTREL) { - if (! bfd_elf64_add_dynamic_entry (info, DT_TEXTREL, 0)) + if (!add_dynamic_entry (DT_TEXTREL, 0)) return false; } } +#undef add_dynamic_entry return true; } -/* Increment the index of a dynamic symbol by a given amount. Called - via elf_link_hash_traverse. */ +/* Relocate an Alpha ELF section for a relocatable link. + + We don't have to change anything unless the reloc is against a section + symbol, in which case we have to adjust according to where the section + symbol winds up in the output section. */ static boolean -elf64_alpha_adjust_dynindx (h, cparg) - struct elf_link_hash_entry *h; - PTR cparg; +elf64_alpha_relocate_section_r (output_bfd, info, input_bfd, input_section, + contents, relocs, local_syms, local_sections) + bfd *output_bfd ATTRIBUTE_UNUSED; + struct bfd_link_info *info ATTRIBUTE_UNUSED; + bfd *input_bfd; + asection *input_section; + bfd_byte *contents ATTRIBUTE_UNUSED; + Elf_Internal_Rela *relocs; + Elf_Internal_Sym *local_syms; + asection **local_sections; { - long *cp = (long *)cparg; + unsigned long symtab_hdr_sh_info; + Elf_Internal_Rela *rel; + Elf_Internal_Rela *relend; + boolean ret_val = true; - if (h->dynindx >= cp[0]) - h->dynindx += cp[1]; + symtab_hdr_sh_info = elf_tdata (input_bfd)->symtab_hdr.sh_info; - return true; + relend = relocs + input_section->reloc_count; + for (rel = relocs; rel < relend; rel++) + { + unsigned long r_symndx; + Elf_Internal_Sym *sym; + asection *sec; + unsigned long r_type; + + r_type = ELF64_R_TYPE(rel->r_info); + if (r_type >= R_ALPHA_max) + { + (*_bfd_error_handler) + (_("%s: unknown relocation type %d"), + bfd_archive_filename (input_bfd), (int)r_type); + bfd_set_error (bfd_error_bad_value); + ret_val = false; + continue; + } + + r_symndx = ELF64_R_SYM(rel->r_info); + + /* The symbol associated with GPDISP and LITUSE is + immaterial. Only the addend is significant. */ + if (r_type == R_ALPHA_GPDISP || r_type == R_ALPHA_LITUSE) + continue; + + if (r_symndx < symtab_hdr_sh_info) + { + sym = local_syms + r_symndx; + if (ELF_ST_TYPE(sym->st_info) == STT_SECTION) + { + sec = local_sections[r_symndx]; + rel->r_addend += sec->output_offset + sym->st_value; + } + } + } + + return ret_val; } /* Relocate an Alpha ELF section. */ @@ -3383,21 +4258,39 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, Elf_Internal_Shdr *symtab_hdr; Elf_Internal_Rela *rel; Elf_Internal_Rela *relend; - asection *sec, *sgot, *srel, *srelgot; + struct elf_link_tls_segment *tls_segment; + asection *sgot, *srel, *srelgot; bfd *dynobj, *gotobj; - bfd_vma gp; + bfd_vma gp, tp_base, dtp_base; + struct alpha_elf_got_entry **local_got_entries; + boolean ret_val; + const char *section_name; + + /* Handle relocatable links with a smaller loop. */ + if (info->relocateable) + return elf64_alpha_relocate_section_r (output_bfd, info, input_bfd, + input_section, contents, relocs, + local_syms, local_sections); + + /* This is a final link. */ + + ret_val = true; - srelgot = srel = NULL; symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + dynobj = elf_hash_table (info)->dynobj; if (dynobj) - { - srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); - } + srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); + else + srelgot = NULL; + + section_name = (bfd_elf_string_from_elf_section + (input_bfd, elf_elfheader(input_bfd)->e_shstrndx, + elf_section_data(input_section)->rel_hdr.sh_name)); + BFD_ASSERT(section_name != NULL); + srel = bfd_get_section_by_name (dynobj, section_name); /* Find the gp value for this input bfd. */ - sgot = NULL; - gp = 0; gotobj = alpha_elf_tdata (input_bfd)->gotobj; if (gotobj) { @@ -3411,62 +4304,97 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, _bfd_set_gp_value (gotobj, gp); } } + else + { + sgot = NULL; + gp = 0; + } + + local_got_entries = alpha_elf_tdata(input_bfd)->local_got_entries; + + tls_segment = elf_hash_table (info)->tls_segment; + if (tls_segment) + { + dtp_base = alpha_get_dtprel_base (tls_segment); + tp_base = alpha_get_tprel_base (tls_segment); + } + else + dtp_base = tp_base = 0; - rel = relocs; relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) + for (rel = relocs; rel < relend; rel++) { - int r_type; + struct alpha_elf_link_hash_entry *h = NULL; + struct alpha_elf_got_entry *gotent; + bfd_reloc_status_type r; reloc_howto_type *howto; unsigned long r_symndx; - struct alpha_elf_link_hash_entry *h; - Elf_Internal_Sym *sym; - bfd_vma relocation; + Elf_Internal_Sym *sym = NULL; + asection *sec = NULL; + bfd_vma value; bfd_vma addend; - bfd_reloc_status_type r; + boolean dynamic_symbol_p; + boolean undef_weak_ref = false; + unsigned long r_type; r_type = ELF64_R_TYPE(rel->r_info); - if (r_type < 0 || r_type >= (int) R_ALPHA_max) + if (r_type >= R_ALPHA_max) { + (*_bfd_error_handler) + (_("%s: unknown relocation type %d"), + bfd_archive_filename (input_bfd), (int)r_type); bfd_set_error (bfd_error_bad_value); - return false; + ret_val = false; + continue; } - howto = elf64_alpha_howto_table + r_type; + howto = elf64_alpha_howto_table + r_type; r_symndx = ELF64_R_SYM(rel->r_info); - if (info->relocateable) + if (r_symndx < symtab_hdr->sh_info) { - /* This is a relocateable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx < symtab_hdr->sh_info) + sym = local_syms + r_symndx; + sec = local_sections[r_symndx]; + value = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); + + if (local_got_entries) + gotent = local_got_entries[r_symndx]; + else + gotent = NULL; + + /* Need to adjust local GOT entries' addends for SEC_MERGE + unless it has been done already. */ + if ((sec->flags & SEC_MERGE) + && ELF_ST_TYPE (sym->st_info) == STT_SECTION + && (elf_section_data (sec)->sec_info_type + == ELF_INFO_TYPE_MERGE) + && gotent + && !gotent->reloc_xlated) { - sym = local_syms + r_symndx; - if (ELF_ST_TYPE(sym->st_info) == STT_SECTION) + struct alpha_elf_got_entry *ent; + asection *msec; + + for (ent = gotent; ent; ent = ent->next) { - sec = local_sections[r_symndx]; - rel->r_addend += sec->output_offset + sym->st_value; + ent->reloc_xlated = 1; + if (ent->use_count == 0) + continue; + msec = sec; + ent->addend = + _bfd_merged_section_offset (output_bfd, &msec, + elf_section_data (sec)-> + sec_info, + sym->st_value + ent->addend, + (bfd_vma) 0); + ent->addend -= sym->st_value; + ent->addend += msec->output_section->vma + + msec->output_offset + - sec->output_section->vma + - sec->output_offset; } } - continue; - } - - /* This is a final link. */ - - h = NULL; - sym = NULL; - sec = NULL; - - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); + dynamic_symbol_p = false; } else { @@ -3476,59 +4404,57 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, || h->root.root.type == bfd_link_hash_warning) h = (struct alpha_elf_link_hash_entry *)h->root.root.u.i.link; + value = 0; if (h->root.root.type == bfd_link_hash_defined || h->root.root.type == bfd_link_hash_defweak) { sec = h->root.root.u.def.section; -#if rth_notdef - if ((r_type == R_ALPHA_LITERAL - && elf_hash_table(info)->dynamic_sections_created - && (!info->shared - || !info->symbolic - || !(h->root.elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR))) - || (info->shared - && (!info->symbolic - || !(h->root.elf_link_hash_flags - & ELF_LINK_HASH_DEF_REGULAR)) - && (input_section->flags & SEC_ALLOC) - && (r_type == R_ALPHA_REFLONG - || r_type == R_ALPHA_REFQUAD - || r_type == R_ALPHA_LITERAL))) - { - /* In these cases, we don't need the relocation value. - We check specially because in some obscure cases - sec->output_section will be NULL. */ - relocation = 0; - } -#else - /* FIXME: Are not these obscure cases simply bugs? Let's - get something working and come back to this. */ - if (sec->output_section == NULL) - relocation = 0; -#endif /* rth_notdef */ - else - { - relocation = (h->root.root.u.def.value - + sec->output_section->vma - + sec->output_offset); - } + /* Detect the cases that sym_sec->output_section is + expected to be NULL -- all cases in which the symbol + is defined in another shared module. This includes + PLT relocs for which we've created a PLT entry and + other relocs for which we're prepared to create + dynamic relocations. */ + /* ??? Just accept it NULL and continue. */ + + if (sec->output_section != NULL) + value = (h->root.root.u.def.value + + sec->output_section->vma + + sec->output_offset); } else if (h->root.root.type == bfd_link_hash_undefweak) - relocation = 0; - else if (info->shared && !info->symbolic) - relocation = 0; + undef_weak_ref = true; + else if (info->shared + && (!info->symbolic || info->allow_shlib_undefined) + && !info->no_undefined + && ELF_ST_VISIBILITY (h->root.other) == STV_DEFAULT) + ; else { if (!((*info->callbacks->undefined_symbol) (info, h->root.root.root.string, input_bfd, - input_section, rel->r_offset))) + input_section, rel->r_offset, + (!info->shared || info->no_undefined + || ELF_ST_VISIBILITY (h->root.other))))) return false; - relocation = 0; + ret_val = false; + continue; } + + dynamic_symbol_p = alpha_elf_dynamic_symbol_p (&h->root, info); + gotent = h->got_entries; } + addend = rel->r_addend; + value += addend; + + /* Search for the proper got entry. */ + for (; gotent ; gotent = gotent->next) + if (gotent->gotobj == gotobj + && gotent->reloc_type == r_type + && gotent->addend == addend) + break; switch (r_type) { @@ -3538,194 +4464,226 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, BFD_ASSERT(gp != 0); - relocation = (input_section->output_section->vma - + input_section->output_offset - + rel->r_offset); + value = (input_section->output_section->vma + + input_section->output_offset + + rel->r_offset); - p_ldah = contents + rel->r_offset - input_section->vma; + p_ldah = contents + rel->r_offset; p_lda = p_ldah + rel->r_addend; - r = elf64_alpha_do_reloc_gpdisp (input_bfd, gp - relocation, + r = elf64_alpha_do_reloc_gpdisp (input_bfd, gp - value, p_ldah, p_lda); } break; - case R_ALPHA_OP_PUSH: - case R_ALPHA_OP_STORE: - case R_ALPHA_OP_PSUB: - case R_ALPHA_OP_PRSHIFT: - /* We hate these silly beasts. */ - abort(); - case R_ALPHA_LITERAL: - { - struct alpha_elf_got_entry *gotent; - - BFD_ASSERT(sgot != NULL); - BFD_ASSERT(gp != 0); - - if (h != NULL) - { - gotent = h->got_entries; - BFD_ASSERT(gotent != NULL); - - while (gotent->gotobj != gotobj || gotent->addend != addend) - gotent = gotent->next; - - /* Initialize the .got entry's value. */ - if (!(gotent->flags & ALPHA_ELF_GOT_ENTRY_RELOCS_DONE)) - { - bfd_put_64 (output_bfd, relocation+addend, - sgot->contents + gotent->got_offset); - - /* If the symbol has been forced local, output a - RELATIVE reloc, otherwise it will be handled in - finish_dynamic_symbol. */ - if (info->shared && h->root.dynindx == -1) - { - Elf_Internal_Rela outrel; - - BFD_ASSERT(srelgot != NULL); - - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + gotent->got_offset); - outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE); - outrel.r_addend = 0; - - bfd_elf64_swap_reloca_out (output_bfd, &outrel, - ((Elf64_External_Rela *) - srelgot->contents) - + srelgot->reloc_count++); - } - - gotent->flags |= ALPHA_ELF_GOT_ENTRY_RELOCS_DONE; - } - } - else - { - gotent = (alpha_elf_tdata(input_bfd)-> - local_got_entries[r_symndx]); - while (gotent->addend != addend) - gotent = gotent->next; - - if (!(gotent->flags & ALPHA_ELF_GOT_ENTRY_RELOCS_DONE)) - { - bfd_put_64 (output_bfd, relocation+addend, - sgot->contents + gotent->got_offset); - - /* Local got entries need RELATIVE relocs in shared - libraries. */ - if (info->shared) - { - Elf_Internal_Rela outrel; - - BFD_ASSERT(srelgot != NULL); + BFD_ASSERT(sgot != NULL); + BFD_ASSERT(gp != 0); + BFD_ASSERT(gotent != NULL); + BFD_ASSERT(gotent->use_count >= 1); - outrel.r_offset = (sgot->output_section->vma - + sgot->output_offset - + gotent->got_offset); - outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE); - outrel.r_addend = 0; + if (!gotent->reloc_done) + { + gotent->reloc_done = 1; - bfd_elf64_swap_reloca_out (output_bfd, &outrel, - ((Elf64_External_Rela *) - srelgot->contents) - + srelgot->reloc_count++); - } + bfd_put_64 (output_bfd, value, + sgot->contents + gotent->got_offset); - gotent->flags |= ALPHA_ELF_GOT_ENTRY_RELOCS_DONE; - } - } + /* If the symbol has been forced local, output a + RELATIVE reloc, otherwise it will be handled in + finish_dynamic_symbol. */ + if (info->shared && !dynamic_symbol_p) + { + Elf_Internal_Rela outrel; + + BFD_ASSERT(srelgot != NULL); + + outrel.r_offset = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + outrel.r_info = ELF64_R_INFO (0, R_ALPHA_RELATIVE); + outrel.r_addend = value; + + bfd_elf64_swap_reloca_out (output_bfd, &outrel, + ((Elf64_External_Rela *) + srelgot->contents) + + srelgot->reloc_count++); + BFD_ASSERT (sizeof (Elf64_External_Rela) + * srelgot->reloc_count + <= srelgot->_cooked_size); + } + } - /* Figure the gprel relocation. */ - addend = 0; - relocation = (sgot->output_section->vma - + sgot->output_offset - + gotent->got_offset); - relocation -= gp; - } - /* overflow handled by _bfd_final_link_relocate */ + value = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + value -= gp; goto default_reloc; + case R_ALPHA_GPREL16: case R_ALPHA_GPREL32: case R_ALPHA_GPRELLOW: + if (dynamic_symbol_p) + { + (*_bfd_error_handler) + (_("%s: gp-relative relocation against dynamic symbol %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } BFD_ASSERT(gp != 0); - relocation -= gp; + value -= gp; goto default_reloc; case R_ALPHA_GPRELHIGH: + if (dynamic_symbol_p) + { + (*_bfd_error_handler) + (_("%s: gp-relative relocation against dynamic symbol %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } BFD_ASSERT(gp != 0); - relocation -= gp; - relocation += addend; - addend = 0; - relocation = (((bfd_signed_vma) relocation >> 16) - + ((relocation >> 15) & 1)); + value -= gp; + value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1); + goto default_reloc; + + case R_ALPHA_HINT: + /* A call to a dynamic symbol is definitely out of range of + the 16-bit displacement. Don't bother writing anything. */ + if (dynamic_symbol_p) + { + r = bfd_reloc_ok; + break; + } + /* The regular PC-relative stuff measures from the start of + the instruction rather than the end. */ + value -= 4; + goto default_reloc; + + case R_ALPHA_BRADDR: + if (dynamic_symbol_p) + { + (*_bfd_error_handler) + (_("%s: pc-relative relocation against dynamic symbol %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } + /* The regular PC-relative stuff measures from the start of + the instruction rather than the end. */ + value -= 4; goto default_reloc; - case R_ALPHA_BRADDR: - case R_ALPHA_HINT: - /* The regular PC-relative stuff measures from the start of - the instruction rather than the end. */ - addend -= 4; - goto default_reloc; + case R_ALPHA_BRSGP: + { + int other; + const char *name; + + /* The regular PC-relative stuff measures from the start of + the instruction rather than the end. */ + value -= 4; + + /* The source and destination gp must be the same. Note that + the source will always have an assigned gp, since we forced + one in check_relocs, but that the destination may not, as + it might not have had any relocations at all. Also take + care not to crash if H is an undefined symbol. */ + if (h != NULL && sec != NULL + && alpha_elf_tdata (sec->owner)->gotobj + && gotobj != alpha_elf_tdata (sec->owner)->gotobj) + { + (*_bfd_error_handler) + (_("%s: change in gp: BRSGP %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } + + /* The symbol should be marked either NOPV or STD_GPLOAD. */ + if (h != NULL) + other = h->root.other; + else + other = sym->st_other; + switch (other & STO_ALPHA_STD_GPLOAD) + { + case STO_ALPHA_NOPV: + break; + case STO_ALPHA_STD_GPLOAD: + addend += 8; + break; + default: + if (h != NULL) + name = h->root.root.root.string; + else + { + name = (bfd_elf_string_from_elf_section + (input_bfd, symtab_hdr->sh_link, sym->st_name)); + if (name == NULL) + name = _(""); + else if (name[0] == 0) + name = bfd_section_name (input_bfd, sec); + } + (*_bfd_error_handler) + (_("%s: !samegp reloc against symbol without .prologue: %s"), + bfd_archive_filename (input_bfd), name); + ret_val = false; + break; + } + + goto default_reloc; + } case R_ALPHA_REFLONG: case R_ALPHA_REFQUAD: + case R_ALPHA_DTPREL64: + case R_ALPHA_TPREL64: { Elf_Internal_Rela outrel; - boolean skip; /* Careful here to remember RELATIVE relocations for global variables for symbolic shared objects. */ - if (h && alpha_elf_dynamic_symbol_p (&h->root, info)) + if (dynamic_symbol_p) { BFD_ASSERT(h->root.dynindx != -1); - outrel.r_info = ELF64_R_INFO(h->root.dynindx, r_type); + outrel.r_info = ELF64_R_INFO (h->root.dynindx, r_type); outrel.r_addend = addend; - addend = 0, relocation = 0; + addend = 0, value = 0; } - else if (info->shared) + else if (r_type == R_ALPHA_DTPREL64) { - outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE); - outrel.r_addend = 0; + BFD_ASSERT(tls_segment != NULL); + value -= dtp_base; + goto default_reloc; } - else - goto default_reloc; - - if (!srel) + else if (r_type == R_ALPHA_TPREL64) { - const char *name; - - name = (bfd_elf_string_from_elf_section - (input_bfd, elf_elfheader(input_bfd)->e_shstrndx, - elf_section_data(input_section)->rel_hdr.sh_name)); - BFD_ASSERT(name != NULL); - - srel = bfd_get_section_by_name (dynobj, name); - BFD_ASSERT(srel != NULL); + BFD_ASSERT(tls_segment != NULL); + value -= dtp_base; + goto default_reloc; } - - skip = false; - - if (elf_section_data (input_section)->stab_info == NULL) - outrel.r_offset = rel->r_offset; - else + else if (info->shared + && r_symndx != 0 + && (input_section->flags & SEC_ALLOC)) { - bfd_vma off; - - off = (_bfd_stab_section_offset - (output_bfd, &elf_hash_table (info)->stab_info, - input_section, - &elf_section_data (input_section)->stab_info, - rel->r_offset)); - if (off == (bfd_vma) -1) - skip = true; - outrel.r_offset = off; + if (r_type == R_ALPHA_REFLONG) + { + (*_bfd_error_handler) + (_("%s: unhandled dynamic relocation against %s"), + bfd_archive_filename (input_bfd), + h->root.root.root.string); + ret_val = false; + } + outrel.r_info = ELF64_R_INFO (0, R_ALPHA_RELATIVE); + outrel.r_addend = value; } + else + goto default_reloc; + + BFD_ASSERT(srel != NULL); - if (! skip) + outrel.r_offset = + _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset); + if ((outrel.r_offset | 1) != (bfd_vma) -1) outrel.r_offset += (input_section->output_section->vma + input_section->output_offset); else @@ -3735,14 +4693,158 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, ((Elf64_External_Rela *) srel->contents) + srel->reloc_count++); + BFD_ASSERT (sizeof (Elf64_External_Rela) * srel->reloc_count + <= srel->_cooked_size); } goto default_reloc; + case R_ALPHA_SREL16: + case R_ALPHA_SREL32: + case R_ALPHA_SREL64: + if (dynamic_symbol_p) + { + (*_bfd_error_handler) + (_("%s: pc-relative relocation against dynamic symbol %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } + + /* ??? .eh_frame references to discarded sections will be smashed + to relocations against SHN_UNDEF. The .eh_frame format allows + NULL to be encoded as 0 in any format, so this works here. */ + if (r_symndx == 0) + howto = (elf64_alpha_howto_table + + (r_type - R_ALPHA_SREL32 + R_ALPHA_REFLONG)); + goto default_reloc; + + case R_ALPHA_TLSLDM: + /* Ignore the symbol for the relocation. The result is always + the current module. */ + dynamic_symbol_p = 0; + /* FALLTHRU */ + + case R_ALPHA_TLSGD: + if (!gotent->reloc_done) + { + gotent->reloc_done = 1; + + /* Note that the module index for the main program is 1. */ + bfd_put_64 (output_bfd, !info->shared && !dynamic_symbol_p, + sgot->contents + gotent->got_offset); + + /* If the symbol has been forced local, output a + DTPMOD64 reloc, otherwise it will be handled in + finish_dynamic_symbol. */ + if (info->shared && !dynamic_symbol_p) + { + Elf_Internal_Rela outrel; + + BFD_ASSERT(srelgot != NULL); + + outrel.r_offset = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + /* ??? Proper dynindx here. */ + outrel.r_info = ELF64_R_INFO (0, R_ALPHA_DTPMOD64); + outrel.r_addend = 0; + + bfd_elf64_swap_reloca_out (output_bfd, &outrel, + ((Elf64_External_Rela *) + srelgot->contents) + + srelgot->reloc_count++); + BFD_ASSERT (sizeof (Elf64_External_Rela) + * srelgot->reloc_count + <= srelgot->_cooked_size); + } + + if (dynamic_symbol_p || r_type == R_ALPHA_TLSLDM) + value = 0; + else + { + BFD_ASSERT(tls_segment != NULL); + value -= dtp_base; + } + bfd_put_64 (output_bfd, value, + sgot->contents + gotent->got_offset + 8); + } + + value = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + value -= gp; + goto default_reloc; + + case R_ALPHA_DTPRELHI: + case R_ALPHA_DTPRELLO: + case R_ALPHA_DTPREL16: + if (dynamic_symbol_p) + { + (*_bfd_error_handler) + (_("%s: dtp-relative relocation against dynamic symbol %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } + BFD_ASSERT(tls_segment != NULL); + value -= dtp_base; + if (r_type == R_ALPHA_DTPRELHI) + value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1); + goto default_reloc; + + case R_ALPHA_TPRELHI: + case R_ALPHA_TPRELLO: + case R_ALPHA_TPREL16: + if (info->shared) + { + (*_bfd_error_handler) + (_("%s: TLS local exec code cannot be linked into shared objects"), + bfd_archive_filename (input_bfd)); + ret_val = false; + } + else if (dynamic_symbol_p) + { + (*_bfd_error_handler) + (_("%s: tp-relative relocation against dynamic symbol %s"), + bfd_archive_filename (input_bfd), h->root.root.root.string); + ret_val = false; + } + BFD_ASSERT(tls_segment != NULL); + value -= tp_base; + if (r_type == R_ALPHA_TPRELHI) + value = ((bfd_signed_vma) value >> 16) + ((value >> 15) & 1); + goto default_reloc; + + case R_ALPHA_GOTDTPREL: + case R_ALPHA_GOTTPREL: + BFD_ASSERT(sgot != NULL); + BFD_ASSERT(gp != 0); + BFD_ASSERT(gotent != NULL); + BFD_ASSERT(gotent->use_count >= 1); + + if (!gotent->reloc_done) + { + gotent->reloc_done = 1; + + if (dynamic_symbol_p) + value = 0; + else + { + BFD_ASSERT(tls_segment != NULL); + value -= (r_type == R_ALPHA_GOTDTPREL ? dtp_base : tp_base); + } + bfd_put_64 (output_bfd, value, + sgot->contents + gotent->got_offset); + } + + value = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + value -= gp; + goto default_reloc; + default: default_reloc: r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, relocation, - addend); + contents, rel->r_offset, value, 0); break; } @@ -3755,6 +4857,15 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, { const char *name; + /* Don't warn if the overflow is due to pc relative reloc + against discarded section. Section optimization code should + handle it. */ + + if (r_symndx < symtab_hdr->sh_info + && sec != NULL && howto->pc_relative + && elf_discarded_section (sec)) + break; + if (h != NULL) name = h->root.root.root.string; else @@ -3769,7 +4880,7 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, if (! ((*info->callbacks->reloc_overflow) (info, name, howto->name, (bfd_vma) 0, input_bfd, input_section, rel->r_offset))) - return false; + ret_val = false; } break; @@ -3779,7 +4890,7 @@ elf64_alpha_relocate_section (output_bfd, info, input_bfd, input_section, } } - return true; + return ret_val; } /* Finish up dynamic symbol handling. We set the contents of various @@ -3794,7 +4905,7 @@ elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym) { bfd *dynobj = elf_hash_table(info)->dynobj; - if (h->plt_offset != MINUS_ONE) + if (h->plt.offset != MINUS_ONE) { /* Fill in the .plt entry for this symbol. */ asection *splt, *sgot, *srel; @@ -3822,21 +4933,21 @@ elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym) + gotent->got_offset); plt_addr = (splt->output_section->vma + splt->output_offset - + h->plt_offset); + + h->plt.offset); - plt_index = (h->plt_offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; + plt_index = (h->plt.offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; /* Fill in the entry in the procedure linkage table. */ { - unsigned insn1, insn2, insn3; + bfd_vma insn1, insn2, insn3; - insn1 = PLT_ENTRY_WORD1 | ((-(h->plt_offset + 4) >> 2) & 0x1fffff); + insn1 = PLT_ENTRY_WORD1 | ((-(h->plt.offset + 4) >> 2) & 0x1fffff); insn2 = PLT_ENTRY_WORD2; insn3 = PLT_ENTRY_WORD3; - bfd_put_32 (output_bfd, insn1, splt->contents + h->plt_offset); - bfd_put_32 (output_bfd, insn2, splt->contents + h->plt_offset + 4); - bfd_put_32 (output_bfd, insn3, splt->contents + h->plt_offset + 8); + bfd_put_32 (output_bfd, insn1, splt->contents + h->plt.offset); + bfd_put_32 (output_bfd, insn2, splt->contents + h->plt.offset + 4); + bfd_put_32 (output_bfd, insn3, splt->contents + h->plt.offset + 8); } /* Fill in the entry in the .rela.plt section. */ @@ -3859,14 +4970,40 @@ elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym) bfd_put_64 (output_bfd, plt_addr, sgot->contents + gotent->got_offset); /* Subsequent .got entries will continue to bounce through the .plt. */ - while ((gotent = gotent->next) != NULL) + if (gotent->next) { - sgot = alpha_elf_tdata(gotent->gotobj)->got; - BFD_ASSERT(sgot != NULL); - BFD_ASSERT(gotent->addend == 0); + srel = bfd_get_section_by_name (dynobj, ".rela.got"); + BFD_ASSERT (! info->shared || srel != NULL); + + gotent = gotent->next; + do + { + sgot = alpha_elf_tdata(gotent->gotobj)->got; + BFD_ASSERT(sgot != NULL); + BFD_ASSERT(gotent->addend == 0); + + bfd_put_64 (output_bfd, plt_addr, + sgot->contents + gotent->got_offset); + + if (info->shared) + { + outrel.r_offset = (sgot->output_section->vma + + sgot->output_offset + + gotent->got_offset); + outrel.r_info = ELF64_R_INFO(0, R_ALPHA_RELATIVE); + outrel.r_addend = plt_addr; + + bfd_elf64_swap_reloca_out (output_bfd, &outrel, + ((Elf64_External_Rela *) + srel->contents) + + srel->reloc_count++); + BFD_ASSERT (sizeof (Elf64_External_Rela) * srel->reloc_count + <= srel->_cooked_size); + } - bfd_put_64 (output_bfd, plt_addr, - sgot->contents + gotent->got_offset); + gotent = gotent->next; + } + while (gotent != NULL); } } else if (alpha_elf_dynamic_symbol_p (h, info)) @@ -3879,20 +5016,60 @@ elf64_alpha_finish_dynamic_symbol (output_bfd, info, h, sym) srel = bfd_get_section_by_name (dynobj, ".rela.got"); BFD_ASSERT (srel != NULL); - outrel.r_info = ELF64_R_INFO (h->dynindx, R_ALPHA_GLOB_DAT); for (gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries; gotent != NULL; gotent = gotent->next) { - asection *sgot = alpha_elf_tdata (gotent->gotobj)->got; + asection *sgot; + int r_type; + + if (gotent->use_count == 0) + continue; + + sgot = alpha_elf_tdata (gotent->gotobj)->got; outrel.r_offset = (sgot->output_section->vma + sgot->output_offset + gotent->got_offset); + + r_type = gotent->reloc_type; + switch (r_type) + { + case R_ALPHA_LITERAL: + r_type = R_ALPHA_GLOB_DAT; + break; + case R_ALPHA_TLSGD: + r_type = R_ALPHA_DTPMOD64; + break; + case R_ALPHA_GOTDTPREL: + r_type = R_ALPHA_DTPREL64; + break; + case R_ALPHA_GOTTPREL: + r_type = R_ALPHA_TPREL64; + break; + case R_ALPHA_TLSLDM: + default: + abort (); + } + + outrel.r_info = ELF64_R_INFO (h->dynindx, r_type); outrel.r_addend = gotent->addend; bfd_elf64_swap_reloca_out (output_bfd, &outrel, ((Elf64_External_Rela *)srel->contents + srel->reloc_count++)); + + if (gotent->reloc_type == R_ALPHA_TLSGD) + { + outrel.r_offset += 8; + outrel.r_info = ELF64_R_INFO (h->dynindx, R_ALPHA_DTPREL64); + + bfd_elf64_swap_reloca_out (output_bfd, &outrel, + ((Elf64_External_Rela *)srel->contents + + srel->reloc_count++)); + } + + BFD_ASSERT (sizeof (Elf64_External_Rela) * srel->reloc_count + <= srel->_cooked_size); } } @@ -3986,58 +5163,20 @@ elf64_alpha_finish_dynamic_sections (output_bfd, info) bfd_put_32 (output_bfd, PLT_HEADER_WORD4, splt->contents + 12); /* The next two words will be filled in by ld.so */ - bfd_put_64 (output_bfd, 0, splt->contents + 16); - bfd_put_64 (output_bfd, 0, splt->contents + 24); + bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 16); + bfd_put_64 (output_bfd, (bfd_vma) 0, splt->contents + 24); elf_section_data (splt->output_section)->this_hdr.sh_entsize = PLT_HEADER_SIZE; } } - if (info->shared) - { - asection *sdynsym; - asection *s; - Elf_Internal_Sym sym; - - /* Set up the section symbols for the output sections. */ - - sdynsym = bfd_get_section_by_name (dynobj, ".dynsym"); - BFD_ASSERT (sdynsym != NULL); - - sym.st_size = 0; - sym.st_name = 0; - sym.st_info = ELF_ST_INFO (STB_LOCAL, STT_SECTION); - sym.st_other = 0; - - for (s = output_bfd->sections; s != NULL; s = s->next) - { - int indx; - - sym.st_value = s->vma; - - indx = elf_section_data (s)->this_idx; - BFD_ASSERT (indx > 0); - sym.st_shndx = indx; - - bfd_elf64_swap_symbol_out (output_bfd, &sym, - (PTR) (((Elf64_External_Sym *) - sdynsym->contents) - + elf_section_data (s)->dynindx)); - } - - /* Set the sh_info field of the output .dynsym section to the - index of the first global symbol. */ - elf_section_data (sdynsym->output_section)->this_hdr.sh_info = - bfd_count_sections (output_bfd) + 1; - } - return true; } -/* We need to use a special link routine to handle the .reginfo and - the .mdebug sections. We need to merge all instances of these - sections together, not write them all out sequentially. */ +/* We need to use a special link routine to handle the .mdebug section. + We need to merge all instances of these sections together, not write + them all out sequentially. */ static boolean elf64_alpha_final_link (abfd, info) @@ -4046,87 +5185,17 @@ elf64_alpha_final_link (abfd, info) { asection *o; struct bfd_link_order *p; - asection *reginfo_sec, *mdebug_sec, *gptab_data_sec, *gptab_bss_sec; + asection *mdebug_sec; struct ecoff_debug_info debug; const struct ecoff_debug_swap *swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap; HDRR *symhdr = &debug.symbolic_header; PTR mdebug_handle = NULL; - /* Go through the sections and collect the .reginfo and .mdebug - information. */ - reginfo_sec = NULL; + /* Go through the sections and collect the mdebug information. */ mdebug_sec = NULL; - gptab_data_sec = NULL; - gptab_bss_sec = NULL; for (o = abfd->sections; o != (asection *) NULL; o = o->next) { -#ifdef ERIC_neverdef - if (strcmp (o->name, ".reginfo") == 0) - { - memset (®info, 0, sizeof reginfo); - - /* We have found the .reginfo section in the output file. - Look through all the link_orders comprising it and merge - the information together. */ - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - bfd *input_bfd; - Elf64_External_RegInfo ext; - Elf64_RegInfo sub; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - input_bfd = input_section->owner; - - /* The linker emulation code has probably clobbered the - size to be zero bytes. */ - if (input_section->_raw_size == 0) - input_section->_raw_size = sizeof (Elf64_External_RegInfo); - - if (! bfd_get_section_contents (input_bfd, input_section, - (PTR) &ext, - (file_ptr) 0, - sizeof ext)) - return false; - - bfd_alpha_elf64_swap_reginfo_in (input_bfd, &ext, &sub); - - reginfo.ri_gprmask |= sub.ri_gprmask; - reginfo.ri_cprmask[0] |= sub.ri_cprmask[0]; - reginfo.ri_cprmask[1] |= sub.ri_cprmask[1]; - reginfo.ri_cprmask[2] |= sub.ri_cprmask[2]; - reginfo.ri_cprmask[3] |= sub.ri_cprmask[3]; - - /* ri_gp_value is set by the function - alpha_elf_section_processing when the section is - finally written out. */ - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - /* Force the section size to the value we want. */ - o->_raw_size = sizeof (Elf64_External_RegInfo); - - /* Skip this section later on (I don't think this currently - matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - - reginfo_sec = o; - } -#endif - if (strcmp (o->name, ".mdebug") == 0) { struct extsym_info einfo; @@ -4172,7 +5241,7 @@ elf64_alpha_final_link (abfd, info) { asection *s; EXTR esym; - bfd_vma last; + bfd_vma last = 0; unsigned int i; static const char * const name[] = { @@ -4222,7 +5291,7 @@ elf64_alpha_final_link (abfd, info) if (p->type != bfd_indirect_link_order) { - if (p->type == bfd_fill_link_order) + if (p->type == bfd_data_link_order) continue; abort (); } @@ -4313,32 +5382,6 @@ elf64_alpha_final_link (abfd, info) input_section->flags &=~ SEC_HAS_CONTENTS; } -#ifdef ERIC_neverdef - if (info->shared) - { - /* Create .rtproc section. */ - rtproc_sec = bfd_get_section_by_name (abfd, ".rtproc"); - if (rtproc_sec == NULL) - { - flagword flags = (SEC_HAS_CONTENTS - | SEC_IN_MEMORY - | SEC_LINKER_CREATED - | SEC_READONLY); - - rtproc_sec = bfd_make_section (abfd, ".rtproc"); - if (rtproc_sec == NULL - || ! bfd_set_section_flags (abfd, rtproc_sec, flags) - || ! bfd_set_section_alignment (abfd, rtproc_sec, 12)) - return false; - } - - if (! alpha_elf_create_procedure_table (mdebug_handle, abfd, - info, rtproc_sec, &debug)) - return false; - } -#endif - - /* Build the external symbol information. */ einfo.abfd = abfd; einfo.info = info; @@ -4360,229 +5403,6 @@ elf64_alpha_final_link (abfd, info) mdebug_sec = o; } - -#ifdef ERIC_neverdef - if (strncmp (o->name, ".gptab.", sizeof ".gptab." - 1) == 0) - { - const char *subname; - unsigned int c; - Elf64_gptab *tab; - Elf64_External_gptab *ext_tab; - unsigned int i; - - /* The .gptab.sdata and .gptab.sbss sections hold - information describing how the small data area would - change depending upon the -G switch. These sections - not used in executables files. */ - if (! info->relocateable) - { - asection **secpp; - - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - /* Skip this section later on (I don't think this - currently matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - - /* Really remove the section. */ - for (secpp = &abfd->sections; - *secpp != o; - secpp = &(*secpp)->next) - ; - *secpp = (*secpp)->next; - --abfd->section_count; - - continue; - } - - /* There is one gptab for initialized data, and one for - uninitialized data. */ - if (strcmp (o->name, ".gptab.sdata") == 0) - gptab_data_sec = o; - else if (strcmp (o->name, ".gptab.sbss") == 0) - gptab_bss_sec = o; - else - { - (*_bfd_error_handler) - (_("%s: illegal section name `%s'"), - bfd_get_filename (abfd), o->name); - bfd_set_error (bfd_error_nonrepresentable_section); - return false; - } - - /* The linker script always combines .gptab.data and - .gptab.sdata into .gptab.sdata, and likewise for - .gptab.bss and .gptab.sbss. It is possible that there is - no .sdata or .sbss section in the output file, in which - case we must change the name of the output section. */ - subname = o->name + sizeof ".gptab" - 1; - if (bfd_get_section_by_name (abfd, subname) == NULL) - { - if (o == gptab_data_sec) - o->name = ".gptab.data"; - else - o->name = ".gptab.bss"; - subname = o->name + sizeof ".gptab" - 1; - BFD_ASSERT (bfd_get_section_by_name (abfd, subname) != NULL); - } - - /* Set up the first entry. */ - c = 1; - tab = (Elf64_gptab *) bfd_malloc (c * sizeof (Elf64_gptab)); - if (tab == NULL) - return false; - tab[0].gt_header.gt_current_g_value = elf_gp_size (abfd); - tab[0].gt_header.gt_unused = 0; - - /* Combine the input sections. */ - for (p = o->link_order_head; - p != (struct bfd_link_order *) NULL; - p = p->next) - { - asection *input_section; - bfd *input_bfd; - bfd_size_type size; - unsigned long last; - bfd_size_type gpentry; - - if (p->type != bfd_indirect_link_order) - { - if (p->type == bfd_fill_link_order) - continue; - abort (); - } - - input_section = p->u.indirect.section; - input_bfd = input_section->owner; - - /* Combine the gptab entries for this input section one - by one. We know that the input gptab entries are - sorted by ascending -G value. */ - size = bfd_section_size (input_bfd, input_section); - last = 0; - for (gpentry = sizeof (Elf64_External_gptab); - gpentry < size; - gpentry += sizeof (Elf64_External_gptab)) - { - Elf64_External_gptab ext_gptab; - Elf64_gptab int_gptab; - unsigned long val; - unsigned long add; - boolean exact; - unsigned int look; - - if (! (bfd_get_section_contents - (input_bfd, input_section, (PTR) &ext_gptab, - gpentry, sizeof (Elf64_External_gptab)))) - { - free (tab); - return false; - } - - bfd_alpha_elf64_swap_gptab_in (input_bfd, &ext_gptab, - &int_gptab); - val = int_gptab.gt_entry.gt_g_value; - add = int_gptab.gt_entry.gt_bytes - last; - - exact = false; - for (look = 1; look < c; look++) - { - if (tab[look].gt_entry.gt_g_value >= val) - tab[look].gt_entry.gt_bytes += add; - - if (tab[look].gt_entry.gt_g_value == val) - exact = true; - } - - if (! exact) - { - Elf64_gptab *new_tab; - unsigned int max; - - /* We need a new table entry. */ - new_tab = ((Elf64_gptab *) - bfd_realloc ((PTR) tab, - (c + 1) * sizeof (Elf64_gptab))); - if (new_tab == NULL) - { - free (tab); - return false; - } - tab = new_tab; - tab[c].gt_entry.gt_g_value = val; - tab[c].gt_entry.gt_bytes = add; - - /* Merge in the size for the next smallest -G - value, since that will be implied by this new - value. */ - max = 0; - for (look = 1; look < c; look++) - { - if (tab[look].gt_entry.gt_g_value < val - && (max == 0 - || (tab[look].gt_entry.gt_g_value - > tab[max].gt_entry.gt_g_value))) - max = look; - } - if (max != 0) - tab[c].gt_entry.gt_bytes += - tab[max].gt_entry.gt_bytes; - - ++c; - } - - last = int_gptab.gt_entry.gt_bytes; - } - - /* Hack: reset the SEC_HAS_CONTENTS flag so that - elf_link_input_bfd ignores this section. */ - input_section->flags &=~ SEC_HAS_CONTENTS; - } - - /* The table must be sorted by -G value. */ - if (c > 2) - qsort (tab + 1, c - 1, sizeof (tab[0]), gptab_compare); - - /* Swap out the table. */ - ext_tab = ((Elf64_External_gptab *) - bfd_alloc (abfd, c * sizeof (Elf64_External_gptab))); - if (ext_tab == NULL) - { - free (tab); - return false; - } - - for (i = 0; i < c; i++) - bfd_alpha_elf64_swap_gptab_out (abfd, tab + i, ext_tab + i); - free (tab); - - o->_raw_size = c * sizeof (Elf64_External_gptab); - o->contents = (bfd_byte *) ext_tab; - - /* Skip this section later on (I don't think this currently - matters, but someday it might). */ - o->link_order_head = (struct bfd_link_order *) NULL; - } -#endif - } /* Invoke the regular ELF backend linker to do all the work. */ @@ -4606,24 +5426,13 @@ elf64_alpha_final_link (abfd, info) sgot = alpha_elf_tdata(i)->got; if (! bfd_set_section_contents (abfd, sgot->output_section, - sgot->contents, sgot->output_offset, + sgot->contents, + (file_ptr) sgot->output_offset, sgot->_raw_size)) return false; } } -#ifdef ERIC_neverdef - if (reginfo_sec != (asection *) NULL) - { - Elf64_External_RegInfo ext; - - bfd_alpha_elf64_swap_reginfo_out (abfd, ®info, &ext); - if (! bfd_set_section_contents (abfd, reginfo_sec, (PTR) &ext, - (file_ptr) 0, sizeof ext)) - return false; - } -#endif - if (mdebug_sec != (asection *) NULL) { BFD_ASSERT (abfd->output_has_begun); @@ -4635,30 +5444,29 @@ elf64_alpha_final_link (abfd, info) bfd_ecoff_debug_free (mdebug_handle, abfd, &debug, swap, info); } - if (gptab_data_sec != (asection *) NULL) - { - if (! bfd_set_section_contents (abfd, gptab_data_sec, - gptab_data_sec->contents, - (file_ptr) 0, - gptab_data_sec->_raw_size)) - return false; - } + return true; +} - if (gptab_bss_sec != (asection *) NULL) +static enum elf_reloc_type_class +elf64_alpha_reloc_type_class (rela) + const Elf_Internal_Rela *rela; +{ + switch ((int) ELF64_R_TYPE (rela->r_info)) { - if (! bfd_set_section_contents (abfd, gptab_bss_sec, - gptab_bss_sec->contents, - (file_ptr) 0, - gptab_bss_sec->_raw_size)) - return false; + case R_ALPHA_RELATIVE: + return reloc_class_relative; + case R_ALPHA_JMP_SLOT: + return reloc_class_plt; + case R_ALPHA_COPY: + return reloc_class_copy; + default: + return reloc_class_normal; } - - return true; } /* ECOFF swapping routines. These are used when dealing with the .mdebug section, which is in the ECOFF debugging format. Copied - from elf32-mips.c. */ + from elf32-mips.c. */ static const struct ecoff_debug_swap elf64_alpha_ecoff_debug_swap = { @@ -4701,11 +5509,41 @@ elf64_alpha_ecoff_debug_swap = elf64_alpha_read_ecoff_info }; +/* Use a non-standard hash bucket size of 8. */ + +const struct elf_size_info alpha_elf_size_info = +{ + sizeof (Elf64_External_Ehdr), + sizeof (Elf64_External_Phdr), + sizeof (Elf64_External_Shdr), + sizeof (Elf64_External_Rel), + sizeof (Elf64_External_Rela), + sizeof (Elf64_External_Sym), + sizeof (Elf64_External_Dyn), + sizeof (Elf_External_Note), + 8, + 1, + 64, 8, + ELFCLASS64, EV_CURRENT, + bfd_elf64_write_out_phdrs, + bfd_elf64_write_shdrs_and_ehdr, + bfd_elf64_write_relocs, + bfd_elf64_swap_symbol_out, + bfd_elf64_slurp_reloc_table, + bfd_elf64_slurp_symbol_table, + bfd_elf64_swap_dyn_in, + bfd_elf64_swap_dyn_out, + NULL, + NULL, + NULL, + NULL +}; + #define TARGET_LITTLE_SYM bfd_elf64_alpha_vec #define TARGET_LITTLE_NAME "elf64-alpha" #define ELF_ARCH bfd_arch_alpha -#define ELF_MACHINE_CODE EM_ALPHA -#define ELF_MAXPAGESIZE 0x10000 +#define ELF_MACHINE_CODE EM_ALPHA +#define ELF_MAXPAGESIZE 0x10000 #define bfd_elf64_bfd_link_hash_table_create \ elf64_alpha_bfd_link_hash_table_create @@ -4722,10 +5560,10 @@ elf64_alpha_ecoff_debug_swap = #define elf_backend_section_from_shdr \ elf64_alpha_section_from_shdr +#define elf_backend_section_flags \ + elf64_alpha_section_flags #define elf_backend_fake_sections \ elf64_alpha_fake_sections -#define elf_backend_additional_program_headers \ - elf64_alpha_additional_program_headers #define bfd_elf64_bfd_is_local_label_name \ elf64_alpha_is_local_label_name @@ -4754,15 +5592,20 @@ elf64_alpha_ecoff_debug_swap = elf64_alpha_finish_dynamic_sections #define bfd_elf64_bfd_final_link \ elf64_alpha_final_link +#define elf_backend_reloc_type_class \ + elf64_alpha_reloc_type_class #define elf_backend_ecoff_debug_swap \ &elf64_alpha_ecoff_debug_swap -/* - * A few constants that determine how the .plt section is set up. - */ +#define elf_backend_size_info \ + alpha_elf_size_info + +/* A few constants that determine how the .plt section is set up. */ #define elf_backend_want_got_plt 0 #define elf_backend_plt_readonly 0 #define elf_backend_want_plt_sym 1 +#define elf_backend_got_header_size 0 +#define elf_backend_plt_header_size PLT_HEADER_SIZE #include "elf64-target.h"