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New from bfd.c

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This commit is contained in:
Steve Chamberlain 1992-01-24 22:54:03 +00:00
parent d20f480f8a
commit 9a7c544993
1 changed files with 93 additions and 35 deletions
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128
include/bfd.h
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@ -181,7 +181,7 @@ typedef struct lineno_cache_entry {
typedef struct sec *sec_ptr;
#define bfd_section_name(bfd, ptr) ((ptr)->name)
#define bfd_section_size(bfd, ptr) ((ptr)->size)
#define bfd_section_size(bfd, ptr) (bfd_get_section_size_before_reloc(ptr))
#define bfd_section_vma(bfd, ptr) ((ptr)->vma)
#define bfd_section_alignment(bfd, ptr) ((ptr)->alignment_power)
#define bfd_get_section_flags(bfd, ptr) ((ptr)->flags)
@ -207,10 +207,23 @@ typedef enum bfd_error {
invalid_error_code} bfd_ec;
extern bfd_ec bfd_error;
struct reloc_cache_entry;
struct bfd_seclet_struct ;
typedef struct bfd_error_vector {
PROTO(void,(* nonrepresentable_section ),(CONST bfd *CONST abfd,
CONST char *CONST name));
PROTO(void,(* undefined_symbol),(CONST struct reloc_cache_entry *rel,
CONST struct bfd_seclet_struct *sec
));
PROTO(void, (* reloc_value_truncated),(CONST struct
reloc_cache_entry *rel,
struct bfd_seclet_struct *sec));
PROTO(void, (* reloc_dangerous),(CONST struct reloc_cache_entry *rel,
CONST struct bfd_seclet_struct *sec));
} bfd_error_vector_type;
PROTO (char *, bfd_errmsg, ());
@ -267,7 +280,8 @@ CAT(NAME,_generic_stat_arch_elt),\
CAT(NAME,_sizeof_headers),\
CAT(NAME,_bfd_debug_info_start),\
CAT(NAME,_bfd_debug_info_end),\
CAT(NAME,_bfd_debug_info_accumulate)
CAT(NAME,_bfd_debug_info_accumulate),\
CAT(NAME,_bfd_get_relocated_section_contents)
#define COFF_SWAP_TABLE \
coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in, \
@ -325,6 +339,8 @@ extern CONST short _bfd_host_big_endian;
void EXFUN(bfd_init, (void));
bfd *EXFUN(bfd_openr, (CONST char *filename, CONST char*target));
bfd *EXFUN(bfd_fdopenr, (CONST char *filename, CONST char *target, int fd));
@ -372,6 +388,11 @@ typedef struct sec
CONST char *name;
/* Which section is it 0.nth */
int index;
/* The next section in the list belonging to the BFD, or NULL. */
struct sec *next;
@ -455,16 +476,21 @@ typedef struct sec
#define SEC_NEVER_LOAD 0x400
/* The base address of the section in the address space of the
target. */
bfd_vma vma;
/* The size of the section in bytes of the loaded section. This
/* The size of the section in bytes, as it will be output.
contains a value even if the section has no contents (eg, the
size of <<.bss>>). */
size of <<.bss>>). This will be filled in after relocation */
bfd_size_type size;
bfd_size_type _cooked_size;
/* The size on disk of the section in bytes originally. Normally this
value is the same as the size, but if some relaxing has
been done, then this value will be bigger. */
bfd_size_type _raw_size;
/* If this section is going to be output, then this value is the
offset into the output section of the first byte in the input
@ -496,10 +522,6 @@ typedef struct sec
unsigned reloc_count;
/* Which section is it 0.nth */
int index;
/* Information below is back end specific - and not always used
or updated
@ -536,7 +558,7 @@ typedef struct sec
/* what the section number is in the target world */
unsigned int target_index;
int target_index;
PTR used_by_bfd;
@ -549,7 +571,33 @@ typedef struct sec
bfd *owner;
boolean reloc_done;
/* A symbol which points at this section only */
struct symbol_cache_entry *symbol;
struct symbol_cache_entry **symbol_ptr_ptr;
struct bfd_seclet_struct *seclets_head;
struct bfd_seclet_struct *seclets_tail;
} asection ;
#define BFD_ABS_SECTION_NAME "*ABS*"
#define BFD_UND_SECTION_NAME "*UND*"
#define BFD_COM_SECTION_NAME "*COM*"
/* the absolute section */
extern asection bfd_abs_section;
/* Pointer to the undefined section */
extern asection bfd_und_section;
/* Pointer to the common section */
extern asection bfd_com_section;
extern struct symbol_cache_entry *bfd_abs_symbol;
extern struct symbol_cache_entry *bfd_com_symbol;
extern struct symbol_cache_entry *bfd_und_symbol;
#define bfd_get_section_size_before_reloc(section) \
(section->reloc_done ? (abort(),1): (section)->_raw_size)
#define bfd_get_section_size_after_reloc(section) \
((section->reloc_done) ? (section)->_cooked_size: (abort(),1))
asection *EXFUN(bfd_get_section_by_name, (bfd *abfd, CONST char *name));
asection *EXFUN(bfd_make_section_old_way, (bfd *, CONST char *name));
asection * EXFUN(bfd_make_section, (bfd *, CONST char *name));
@ -690,9 +738,6 @@ typedef struct reloc_cache_entry
/* addend for relocation value */
bfd_vma addend;
/* if sym is null this is the section */
struct sec *section;
/* Pointer to how to perform the required relocation */
CONST struct reloc_howto_struct *howto;
@ -778,17 +823,13 @@ typedef CONST struct reloc_howto_struct
#define HOWTO_PREPARE(relocation, symbol) \
{ \
if (symbol != (asymbol *)NULL) { \
if (symbol->flags & BSF_FORT_COMM) { \
if (symbol->section == &bfd_com_section) { \
relocation = 0; \
} \
else { \
relocation = symbol->value; \
} \
} \
if (symbol->section != (asection *)NULL) { \
relocation += symbol->section->output_section->vma + \
symbol->section->output_offset; \
} \
}
typedef unsigned char bfd_byte;
@ -863,11 +904,11 @@ typedef struct symbol_cache_entry
/* The symbol is undefined. <<extern>> in <<C>>. The value has
no meaning. */
#define BSF_UNDEFINED 0x10
#define BSF_UNDEFINED_OBS 0x10
/* The symbol is common, initialized to zero; default in
<<C>>. The value is the size of the object in bytes. */
#define BSF_FORT_COMM 0x20
#define BSF_FORT_COMM_OBS 0x20
/* A normal C symbol would be one of:
<<BSF_LOCAL>>, <<BSF_FORT_COMM>>, <<BSF_UNDEFINED>> or
@ -877,10 +918,6 @@ typedef struct symbol_cache_entry
meaning. */
#define BSF_DEBUGGING 0x40
/* The symbol has no section attached, any value is the actual
value and is not a relative offset to a section. */
#define BSF_ABSOLUTE 0x80
/* Used by the linker */
#define BSF_KEEP 0x10000
#define BSF_KEEP_G 0x80000
@ -888,7 +925,9 @@ typedef struct symbol_cache_entry
/* Unused */
#define BSF_WEAK 0x100000
#define BSF_CTOR 0x200000
#define BSF_FAKE 0x400000
/* This symbol was created to point to a section */
#define BSF_SECTION_SYM 0x400000
/* The symbol used to be a common symbol, but now it is
allocated. */
@ -921,11 +960,9 @@ typedef struct symbol_cache_entry
flagword flags;
/* A pointer to the section to which this symbol is relative,
or 0 if the symbol is absolute or undefined. Note that it
is not sufficient to set this location to 0 to mark a
symbol as absolute - the flag <<BSF_ABSOLUTE>> must be set
also. */
/* A pointer to the section to which this symbol is
relative. This will always be non NULL, there are special
sections for undefined and absolute symbols */
struct sec *section;
/* Back end special data. This is being phased out in favour
@ -1048,13 +1085,31 @@ struct _bfd
boolean has_armap;
/* Used by the back end to hold private data. */
PTR tdata;
union
{
struct aout_data_struct *aout_data;
struct artdata *aout_ar_data;
struct _oasys_data *oasys_obj_data;
struct _oasys_ar_data *oasys_ar_data;
struct coff_tdata *coff_obj_data;
struct ieee_data_struct *ieee_data;
struct ieee_ar_data_struct *ieee_ar_data;
struct srec_data_struct *srec_data;
struct elf_obj_tdata_struct *elf_obj_data;
struct elf_core_tdata_struct *elf_core_data;
struct bout_data_struct *bout_data;
struct sun_core_struct *sun_core_data;
PTR any;
} tdata;
/* Used by the application to hold private data*/
PTR usrdata;
/* Where all the allocated stuff under this BFD goes */
struct obstack memory;
asymbol **ld_symbols;
};
unsigned int EXFUN(bfd_get_reloc_upper_bound, (bfd *abfd, asection *sect));
@ -1121,9 +1176,11 @@ long EXFUN(bfd_get_mtime, (bfd *));
#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
BFD_SEND (abfd, _bfd_coff_swap_aouthdr_out, (abfd, i, o))
symindex EXFUN(bfd_get_next_mapent, (bfd *, symindex, carsym **));
#define bfd_get_relocated_section_contents(abfd, seclet) \
BFD_SEND (abfd, _bfd_get_relocated_section_contents, (abfd, seclet))
symindex EXFUN(bfd_get_next_mapent, (bfd *, symindex previous, carsym ** sym));
boolean EXFUN(bfd_set_archive_head, (bfd *output, bfd *new_head));
bfd *EXFUN(bfd_get_elt_at_index, (bfd *, int));
bfd *EXFUN(bfd_get_elt_at_index, (bfd * archive, int index));
bfd* EXFUN(bfd_openr_next_archived_file, (bfd *archive, bfd *previous));
CONST char *EXFUN(bfd_core_file_failing_command, (bfd *));
int EXFUN(bfd_core_file_failing_signal, (bfd *));
@ -1214,6 +1271,7 @@ typedef struct bfd_target
SDEF (void, _bfd_debug_info_start, (bfd *));
SDEF (void, _bfd_debug_info_end, (bfd *));
SDEF (void, _bfd_debug_info_accumulate, (bfd *, struct sec *));
SDEF (bfd_byte *, _bfd_get_relocated_section_contents, (bfd*,struct bfd_seclet_struct *));
SDEF(void, _bfd_coff_swap_aux_in,(
bfd *abfd ,
PTR ext,