diff options
Diffstat (limited to 'binutils-2.25/bfd/bfd.c')
| -rw-r--r-- | binutils-2.25/bfd/bfd.c | 146 |
1 files changed, 77 insertions, 69 deletions
diff --git a/binutils-2.25/bfd/bfd.c b/binutils-2.25/bfd/bfd.c index 8d0580c2..2d9397b5 100644 --- a/binutils-2.25/bfd/bfd.c +++ b/binutils-2.25/bfd/bfd.c @@ -1,5 +1,5 @@ /* Generic BFD library interface and support routines. - Copyright 1990-2013 Free Software Foundation, Inc. + Copyright (C) 1990-2014 Free Software Foundation, Inc. Written by Cygnus Support. This file is part of BFD, the Binary File Descriptor library. @@ -46,9 +46,6 @@ CODE_FRAGMENT . .struct bfd .{ -. {* A unique identifier of the BFD *} -. unsigned int id; -. . {* The filename the application opened the BFD with. *} . const char *filename; . @@ -71,17 +68,17 @@ CODE_FRAGMENT . {* File modified time, if mtime_set is TRUE. *} . long mtime; . -. {* Reserved for an unimplemented file locking extension. *} -. int ifd; +. {* A unique identifier of the BFD *} +. unsigned int id; . . {* The format which belongs to the BFD. (object, core, etc.) *} -. bfd_format format; +. ENUM_BITFIELD (bfd_format) format : 3; . . {* The direction with which the BFD was opened. *} -. enum bfd_direction direction; +. ENUM_BITFIELD (bfd_direction) direction : 2; . . {* Format_specific flags. *} -. flagword flags; +. flagword flags : 17; . . {* Values that may appear in the flags field of a BFD. These also . appear in the object_flags field of the bfd_target structure, where @@ -140,26 +137,23 @@ CODE_FRAGMENT . struct. *} .#define BFD_IN_MEMORY 0x800 . -. {* The sections in this BFD specify a memory page. *} -.#define HAS_LOAD_PAGE 0x1000 -. . {* This BFD has been created by the linker and doesn't correspond . to any input file. *} -.#define BFD_LINKER_CREATED 0x2000 +.#define BFD_LINKER_CREATED 0x1000 . . {* This may be set before writing out a BFD to request that it . be written using values for UIDs, GIDs, timestamps, etc. that . will be consistent from run to run. *} -.#define BFD_DETERMINISTIC_OUTPUT 0x4000 +.#define BFD_DETERMINISTIC_OUTPUT 0x2000 . . {* Compress sections in this BFD. *} -.#define BFD_COMPRESS 0x8000 +.#define BFD_COMPRESS 0x4000 . . {* Decompress sections in this BFD. *} -.#define BFD_DECOMPRESS 0x10000 +.#define BFD_DECOMPRESS 0x8000 . . {* BFD is a dummy, for plugins. *} -.#define BFD_PLUGIN 0x20000 +.#define BFD_PLUGIN 0x10000 . . {* Flags bits to be saved in bfd_preserve_save. *} .#define BFD_FLAGS_SAVED \ @@ -170,6 +164,42 @@ CODE_FRAGMENT . (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \ . | BFD_PLUGIN | BFD_TRADITIONAL_FORMAT | BFD_DETERMINISTIC_OUTPUT) . +. {* Is the file descriptor being cached? That is, can it be closed as +. needed, and re-opened when accessed later? *} +. unsigned int cacheable : 1; +. +. {* Marks whether there was a default target specified when the +. BFD was opened. This is used to select which matching algorithm +. to use to choose the back end. *} +. unsigned int target_defaulted : 1; +. +. {* ... and here: (``once'' means at least once). *} +. unsigned int opened_once : 1; +. +. {* Set if we have a locally maintained mtime value, rather than +. getting it from the file each time. *} +. unsigned int mtime_set : 1; +. +. {* Flag set if symbols from this BFD should not be exported. *} +. unsigned int no_export : 1; +. +. {* Remember when output has begun, to stop strange things +. from happening. *} +. unsigned int output_has_begun : 1; +. +. {* Have archive map. *} +. unsigned int has_armap : 1; +. +. {* Set if this is a thin archive. *} +. unsigned int is_thin_archive : 1; +. +. {* Set if only required symbols should be added in the link hash table for +. this object. Used by VMS linkers. *} +. unsigned int selective_search : 1; +. +. {* Set if this is the linker output BFD. *} +. unsigned int is_linker_output : 1; +. . {* Currently my_archive is tested before adding origin to . anything. I believe that this can become always an add of . origin, with origin set to 0 for non archive files. *} @@ -194,17 +224,21 @@ CODE_FRAGMENT . {* The number of sections. *} . unsigned int section_count; . +. {* A field used by _bfd_generic_link_add_archive_symbols. This will +. be used only for archive elements. *} +. int archive_pass; +. . {* Stuff only useful for object files: . The start address. *} . bfd_vma start_address; . -. {* Used for input and output. *} -. unsigned int symcount; -. . {* Symbol table for output BFD (with symcount entries). . Also used by the linker to cache input BFD symbols. *} . struct bfd_symbol **outsymbols; . +. {* Used for input and output. *} +. unsigned int symcount; +. . {* Used for slurped dynamic symbol tables. *} . unsigned int dynsymcount; . @@ -219,12 +253,12 @@ CODE_FRAGMENT . struct bfd *nested_archives; {* List of nested archive in a flattened . thin archive. *} . -. {* A chain of BFD structures involved in a link. *} -. struct bfd *link_next; -. -. {* A field used by _bfd_generic_link_add_archive_symbols. This will -. be used only for archive elements. *} -. int archive_pass; +. union { +. {* For input BFDs, a chain of BFDs involved in a link. *} +. struct bfd *next; +. {* For output BFD, the linker hash table. *} +. struct bfd_link_hash_table *hash; +. } link; . . {* Used by the back end to hold private data. *} . union @@ -276,41 +310,16 @@ CODE_FRAGMENT . struct objalloc *, but we use void * to avoid requiring the inclusion . of objalloc.h. *} . void *memory; -. -. {* Is the file descriptor being cached? That is, can it be closed as -. needed, and re-opened when accessed later? *} -. unsigned int cacheable : 1; -. -. {* Marks whether there was a default target specified when the -. BFD was opened. This is used to select which matching algorithm -. to use to choose the back end. *} -. unsigned int target_defaulted : 1; -. -. {* ... and here: (``once'' means at least once). *} -. unsigned int opened_once : 1; -. -. {* Set if we have a locally maintained mtime value, rather than -. getting it from the file each time. *} -. unsigned int mtime_set : 1; -. -. {* Flag set if symbols from this BFD should not be exported. *} -. unsigned int no_export : 1; -. -. {* Remember when output has begun, to stop strange things -. from happening. *} -. unsigned int output_has_begun : 1; -. -. {* Have archive map. *} -. unsigned int has_armap : 1; -. -. {* Set if this is a thin archive. *} -. unsigned int is_thin_archive : 1; -. -. {* Set if only required symbols should be added in the link hash table for -. this object. Used by VMS linkers. *} -. unsigned int selective_search : 1; .}; . +.{* See note beside bfd_set_section_userdata. *} +.static inline bfd_boolean +.bfd_set_cacheable (bfd * abfd, bfd_boolean val) +.{ +. abfd->cacheable = val; +. return TRUE; +.} +. */ #include "sysdep.h" @@ -1065,9 +1074,11 @@ SYNOPSIS int bfd_get_arch_size (bfd *abfd); DESCRIPTION - Returns the architecture address size, in bits, as determined - by the object file's format. For ELF, this information is - included in the header. + Returns the normalized architecture address size, in bits, as + determined by the object file's format. By normalized, we mean + either 32 or 64. For ELF, this information is included in the + header. Use bfd_arch_bits_per_address for number of bits in + the architecture address. RETURNS Returns the arch size in bits if known, <<-1>> otherwise. @@ -1079,7 +1090,7 @@ bfd_get_arch_size (bfd *abfd) if (abfd->xvec->flavour == bfd_target_elf_flavour) return get_elf_backend_data (abfd)->s->arch_size; - return -1; + return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32; } /* @@ -1433,12 +1444,12 @@ DESCRIPTION . .#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \ . BFD_SEND (abfd, _bfd_find_nearest_line, \ -. (abfd, sec, syms, off, file, func, line)) +. (abfd, syms, sec, off, file, func, line, NULL)) . .#define bfd_find_nearest_line_discriminator(abfd, sec, syms, off, file, func, \ . line, disc) \ -. BFD_SEND (abfd, _bfd_find_nearest_line_discriminator, \ -. (abfd, sec, syms, off, file, func, line, disc)) +. BFD_SEND (abfd, _bfd_find_nearest_line, \ +. (abfd, syms, sec, off, file, func, line, disc)) . .#define bfd_find_line(abfd, syms, sym, file, line) \ . BFD_SEND (abfd, _bfd_find_line, \ @@ -1487,9 +1498,6 @@ DESCRIPTION .#define bfd_link_hash_table_create(abfd) \ . BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd)) . -.#define bfd_link_hash_table_free(abfd, hash) \ -. BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) -. .#define bfd_link_add_symbols(abfd, info) \ . BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) . |