- /* -*- C -*- */
+/* Generic BFD library interface and support routines.
+ Copyright (C) 1990-2014 Free Software Foundation, Inc.
+ Written by Cygnus Support.
-/*** bfd -- binary file diddling routines by Gumby Wallace of Cygnus Support.
- Every definition in this file should be exported and declared
- in bfd.h. If you don't want it to be user-visible, put it in
- libbfd.c!
-*/
-
-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+ This file is part of BFD, the Binary File Descriptor library.
-This file is part of BFD, the Binary File Diddler.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
-BFD is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-BFD is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
-You should have received a copy of the GNU General Public License
-along with BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+/*
+INODE
+typedef bfd, Error reporting, BFD front end, BFD front end
+
+SECTION
+ <<typedef bfd>>
+
+ A BFD has type <<bfd>>; objects of this type are the
+ cornerstone of any application using BFD. Using BFD
+ consists of making references though the BFD and to data in the BFD.
+
+ Here is the structure that defines the type <<bfd>>. It
+ contains the major data about the file and pointers
+ to the rest of the data.
+
+CODE_FRAGMENT
+.
+.enum bfd_direction
+. {
+. no_direction = 0,
+. read_direction = 1,
+. write_direction = 2,
+. both_direction = 3
+. };
+.
+.struct bfd
+.{
+. {* The filename the application opened the BFD with. *}
+. const char *filename;
+.
+. {* A pointer to the target jump table. *}
+. const struct bfd_target *xvec;
+.
+. {* The IOSTREAM, and corresponding IO vector that provide access
+. to the file backing the BFD. *}
+. void *iostream;
+. const struct bfd_iovec *iovec;
+.
+. {* The caching routines use these to maintain a
+. least-recently-used list of BFDs. *}
+. struct bfd *lru_prev, *lru_next;
+.
+. {* When a file is closed by the caching routines, BFD retains
+. state information on the file here... *}
+. ufile_ptr where;
+.
+. {* File modified time, if mtime_set is TRUE. *}
+. long mtime;
+.
+. {* A unique identifier of the BFD *}
+. unsigned int id;
+.
+. {* The format which belongs to the BFD. (object, core, etc.) *}
+. ENUM_BITFIELD (bfd_format) format : 3;
+.
+. {* The direction with which the BFD was opened. *}
+. ENUM_BITFIELD (bfd_direction) direction : 2;
+.
+. {* Format_specific 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
+. they indicate the set of flags used by that backend (not all flags
+. are meaningful for all object file formats) (FIXME: at the moment,
+. the object_flags values have mostly just been copied from backend
+. to another, and are not necessarily correct). *}
+.
+.#define BFD_NO_FLAGS 0x00
+.
+. {* BFD contains relocation entries. *}
+.#define HAS_RELOC 0x01
+.
+. {* BFD is directly executable. *}
+.#define EXEC_P 0x02
+.
+. {* BFD has line number information (basically used for F_LNNO in a
+. COFF header). *}
+.#define HAS_LINENO 0x04
+.
+. {* BFD has debugging information. *}
+.#define HAS_DEBUG 0x08
+.
+. {* BFD has symbols. *}
+.#define HAS_SYMS 0x10
+.
+. {* BFD has local symbols (basically used for F_LSYMS in a COFF
+. header). *}
+.#define HAS_LOCALS 0x20
+.
+. {* BFD is a dynamic object. *}
+.#define DYNAMIC 0x40
+.
+. {* Text section is write protected (if D_PAGED is not set, this is
+. like an a.out NMAGIC file) (the linker sets this by default, but
+. clears it for -r or -N). *}
+.#define WP_TEXT 0x80
+.
+. {* BFD is dynamically paged (this is like an a.out ZMAGIC file) (the
+. linker sets this by default, but clears it for -r or -n or -N). *}
+.#define D_PAGED 0x100
+.
+. {* BFD is relaxable (this means that bfd_relax_section may be able to
+. do something) (sometimes bfd_relax_section can do something even if
+. this is not set). *}
+.#define BFD_IS_RELAXABLE 0x200
+.
+. {* This may be set before writing out a BFD to request using a
+. traditional format. For example, this is used to request that when
+. writing out an a.out object the symbols not be hashed to eliminate
+. duplicates. *}
+.#define BFD_TRADITIONAL_FORMAT 0x400
+.
+. {* This flag indicates that the BFD contents are actually cached
+. in memory. If this is set, iostream points to a bfd_in_memory
+. struct. *}
+.#define BFD_IN_MEMORY 0x800
+.
+. {* This BFD has been created by the linker and doesn't correspond
+. to any input file. *}
+.#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 0x2000
+.
+. {* Compress sections in this BFD. *}
+.#define BFD_COMPRESS 0x4000
+.
+. {* Decompress sections in this BFD. *}
+.#define BFD_DECOMPRESS 0x8000
+.
+. {* BFD is a dummy, for plugins. *}
+.#define BFD_PLUGIN 0x10000
+.
+. {* Flags bits to be saved in bfd_preserve_save. *}
+.#define BFD_FLAGS_SAVED \
+. (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_PLUGIN)
+.
+. {* Flags bits which are for BFD use only. *}
+.#define BFD_FLAGS_FOR_BFD_USE_MASK \
+. (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. *}
+. ufile_ptr origin;
+.
+. {* The origin in the archive of the proxy entry. This will
+. normally be the same as origin, except for thin archives,
+. when it will contain the current offset of the proxy in the
+. thin archive rather than the offset of the bfd in its actual
+. container. *}
+. ufile_ptr proxy_origin;
+.
+. {* A hash table for section names. *}
+. struct bfd_hash_table section_htab;
+.
+. {* Pointer to linked list of sections. *}
+. struct bfd_section *sections;
+.
+. {* The last section on the section list. *}
+. struct bfd_section *section_last;
+.
+. {* 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;
+.
+. {* 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;
+.
+. {* Pointer to structure which contains architecture information. *}
+. const struct bfd_arch_info *arch_info;
+.
+. {* Stuff only useful for archives. *}
+. void *arelt_data;
+. struct bfd *my_archive; {* The containing archive BFD. *}
+. struct bfd *archive_next; {* The next BFD in the archive. *}
+. struct bfd *archive_head; {* The first BFD in the archive. *}
+. struct bfd *nested_archives; {* List of nested archive in a flattened
+. thin archive. *}
+.
+. 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
+. {
+. 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 pe_tdata *pe_obj_data;
+. struct xcoff_tdata *xcoff_obj_data;
+. struct ecoff_tdata *ecoff_obj_data;
+. struct ieee_data_struct *ieee_data;
+. struct ieee_ar_data_struct *ieee_ar_data;
+. struct srec_data_struct *srec_data;
+. struct verilog_data_struct *verilog_data;
+. struct ihex_data_struct *ihex_data;
+. struct tekhex_data_struct *tekhex_data;
+. struct elf_obj_tdata *elf_obj_data;
+. struct nlm_obj_tdata *nlm_obj_data;
+. struct bout_data_struct *bout_data;
+. struct mmo_data_struct *mmo_data;
+. struct sun_core_struct *sun_core_data;
+. struct sco5_core_struct *sco5_core_data;
+. struct trad_core_struct *trad_core_data;
+. struct som_data_struct *som_data;
+. struct hpux_core_struct *hpux_core_data;
+. struct hppabsd_core_struct *hppabsd_core_data;
+. struct sgi_core_struct *sgi_core_data;
+. struct lynx_core_struct *lynx_core_data;
+. struct osf_core_struct *osf_core_data;
+. struct cisco_core_struct *cisco_core_data;
+. struct versados_data_struct *versados_data;
+. struct netbsd_core_struct *netbsd_core_data;
+. struct mach_o_data_struct *mach_o_data;
+. struct mach_o_fat_data_struct *mach_o_fat_data;
+. struct plugin_data_struct *plugin_data;
+. struct bfd_pef_data_struct *pef_data;
+. struct bfd_pef_xlib_data_struct *pef_xlib_data;
+. struct bfd_sym_data_struct *sym_data;
+. void *any;
+. }
+. tdata;
+.
+. {* Used by the application to hold private data. *}
+. void *usrdata;
+.
+. {* Where all the allocated stuff under this BFD goes. This is a
+. struct objalloc *, but we use void * to avoid requiring the inclusion
+. of objalloc.h. *}
+. void *memory;
+.};
+.
+.{* See note beside bfd_set_section_userdata. *}
+.static inline bfd_boolean
+.bfd_set_cacheable (bfd * abfd, bfd_boolean val)
+.{
+. abfd->cacheable = val;
+. return TRUE;
+.}
+.
+*/
-/* $Id$ */
-#include <sysdep.h>
+#include "sysdep.h"
+#include <stdarg.h>
#include "bfd.h"
+#include "bfdver.h"
+#include "libiberty.h"
+#include "demangle.h"
+#include "safe-ctype.h"
+#include "bfdlink.h"
#include "libbfd.h"
+#include "coff/internal.h"
+#include "coff/sym.h"
+#include "libcoff.h"
+#include "libecoff.h"
+#undef obj_symbols
+#include "elf-bfd.h"
+
+#ifndef EXIT_FAILURE
+#define EXIT_FAILURE 1
+#endif
-short _bfd_host_big_endian = 0x0100;
- /* Accessing the above as (*(char*)&_bfd_host_big_endian), will
- return 1 if the host is big-endian, 0 otherwise.
- (assuming that a short is two bytes long!!! FIXME)
- (See HOST_IS_BIG_ENDIAN_P in bfd.h.) */
\f
-/** Error handling
- o - Most functions return nonzero on success (check doc for
- precise semantics); 0 or NULL on error.
- o - Internal errors are documented by the value of bfd_error.
- If that is system_call_error then check errno.
- o - The easiest way to report this to the user is to use bfd_perror.
-*/
-
-bfd_ec bfd_error = no_error;
-
-char *bfd_errmsgs[] = { "No error",
- "System call error",
- "Invalid target",
- "File in wrong format",
- "Invalid operation",
- "Memory exhausted",
- "No symbols",
- "No relocation info",
- "No more archived files",
- "Malformed archive",
- "Symbol not found",
- "File format not recognized",
- "File format is ambiguous",
- "Section has no contents",
- "Nonrepresentable section on output",
- "#<Invalid error code>"
- };
-
-static
-void
-DEFUN(bfd_nonrepresentable_section,(abfd, name),
- CONST bfd * CONST abfd AND
- CONST char * CONST name)
-{
- printf("bfd error writing file %s, format %s can't represent section %s\n",
- abfd->filename,
- abfd->xvec->name,
- name);
- exit(1);
-}
-
-bfd_error_vector_type bfd_error_vector =
- {
- bfd_nonrepresentable_section
- };
-
-#if 1 || !defined(ANSI_LIBRARIES) && !defined(__STDC__)
-char *
-strerror (code)
- int code;
+/* provide storage for subsystem, stack and heap data which may have been
+ passed in on the command line. Ld puts this data into a bfd_link_info
+ struct which ultimately gets passed in to the bfd. When it arrives, copy
+ it to the following struct so that the data will be available in coffcode.h
+ where it is needed. The typedef's used are defined in bfd.h */
+\f
+/*
+INODE
+Error reporting, Miscellaneous, typedef bfd, BFD front end
+
+SECTION
+ Error reporting
+
+ Most BFD functions return nonzero on success (check their
+ individual documentation for precise semantics). On an error,
+ they call <<bfd_set_error>> to set an error condition that callers
+ can check by calling <<bfd_get_error>>.
+ If that returns <<bfd_error_system_call>>, then check
+ <<errno>>.
+
+ The easiest way to report a BFD error to the user is to
+ use <<bfd_perror>>.
+
+SUBSECTION
+ Type <<bfd_error_type>>
+
+ The values returned by <<bfd_get_error>> are defined by the
+ enumerated type <<bfd_error_type>>.
+
+CODE_FRAGMENT
+.
+.typedef enum bfd_error
+.{
+. bfd_error_no_error = 0,
+. bfd_error_system_call,
+. bfd_error_invalid_target,
+. bfd_error_wrong_format,
+. bfd_error_wrong_object_format,
+. bfd_error_invalid_operation,
+. bfd_error_no_memory,
+. bfd_error_no_symbols,
+. bfd_error_no_armap,
+. bfd_error_no_more_archived_files,
+. bfd_error_malformed_archive,
+. bfd_error_missing_dso,
+. bfd_error_file_not_recognized,
+. bfd_error_file_ambiguously_recognized,
+. bfd_error_no_contents,
+. bfd_error_nonrepresentable_section,
+. bfd_error_no_debug_section,
+. bfd_error_bad_value,
+. bfd_error_file_truncated,
+. bfd_error_file_too_big,
+. bfd_error_on_input,
+. bfd_error_invalid_error_code
+.}
+.bfd_error_type;
+.
+*/
+
+static bfd_error_type bfd_error = bfd_error_no_error;
+static bfd *input_bfd = NULL;
+static bfd_error_type input_error = bfd_error_no_error;
+
+const char *const bfd_errmsgs[] =
{
- extern int sys_nerr;
- extern char *sys_errlist[];
+ N_("No error"),
+ N_("System call error"),
+ N_("Invalid bfd target"),
+ N_("File in wrong format"),
+ N_("Archive object file in wrong format"),
+ N_("Invalid operation"),
+ N_("Memory exhausted"),
+ N_("No symbols"),
+ N_("Archive has no index; run ranlib to add one"),
+ N_("No more archived files"),
+ N_("Malformed archive"),
+ N_("DSO missing from command line"),
+ N_("File format not recognized"),
+ N_("File format is ambiguous"),
+ N_("Section has no contents"),
+ N_("Nonrepresentable section on output"),
+ N_("Symbol needs debug section which does not exist"),
+ N_("Bad value"),
+ N_("File truncated"),
+ N_("File too big"),
+ N_("Error reading %s: %s"),
+ N_("#<Invalid error code>")
+};
- return (((code < 0) || (code >= sys_nerr)) ? "(unknown error)" :
- sys_errlist [code]);
+/*
+FUNCTION
+ bfd_get_error
+
+SYNOPSIS
+ bfd_error_type bfd_get_error (void);
+
+DESCRIPTION
+ Return the current BFD error condition.
+*/
+
+bfd_error_type
+bfd_get_error (void)
+{
+ return bfd_error;
}
-#endif /* not ANSI_LIBRARIES */
+/*
+FUNCTION
+ bfd_set_error
-char *
-bfd_errmsg (error_tag)
- bfd_ec error_tag;
+SYNOPSIS
+ void bfd_set_error (bfd_error_type error_tag, ...);
+
+DESCRIPTION
+ Set the BFD error condition to be @var{error_tag}.
+ If @var{error_tag} is bfd_error_on_input, then this function
+ takes two more parameters, the input bfd where the error
+ occurred, and the bfd_error_type error.
+*/
+
+void
+bfd_set_error (bfd_error_type error_tag, ...)
+{
+ bfd_error = error_tag;
+ if (error_tag == bfd_error_on_input)
+ {
+ /* This is an error that occurred during bfd_close when
+ writing an archive, but on one of the input files. */
+ va_list ap;
+
+ va_start (ap, error_tag);
+ input_bfd = va_arg (ap, bfd *);
+ input_error = (bfd_error_type) va_arg (ap, int);
+ if (input_error >= bfd_error_on_input)
+ abort ();
+ va_end (ap);
+ }
+}
+
+/*
+FUNCTION
+ bfd_errmsg
+
+SYNOPSIS
+ const char *bfd_errmsg (bfd_error_type error_tag);
+
+DESCRIPTION
+ Return a string describing the error @var{error_tag}, or
+ the system error if @var{error_tag} is <<bfd_error_system_call>>.
+*/
+
+const char *
+bfd_errmsg (bfd_error_type error_tag)
{
#ifndef errno
extern int errno;
#endif
- if (error_tag == system_call_error)
- return strerror (errno);
+ if (error_tag == bfd_error_on_input)
+ {
+ char *buf;
+ const char *msg = bfd_errmsg (input_error);
- if ((((int)error_tag <(int) no_error) ||
- ((int)error_tag > (int)invalid_error_code)))
- error_tag = invalid_error_code;/* sanity check */
+ if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg)
+ != -1)
+ return buf;
- return bfd_errmsgs [(int)error_tag];
+ /* Ick, what to do on out of memory? */
+ return msg;
+ }
+
+ if (error_tag == bfd_error_system_call)
+ return xstrerror (errno);
+
+ if (error_tag > bfd_error_invalid_error_code)
+ error_tag = bfd_error_invalid_error_code; /* sanity check */
+
+ return _(bfd_errmsgs [error_tag]);
}
+/*
+FUNCTION
+ bfd_perror
+
+SYNOPSIS
+ void bfd_perror (const char *message);
+
+DESCRIPTION
+ Print to the standard error stream a string describing the
+ last BFD error that occurred, or the last system error if
+ the last BFD error was a system call failure. If @var{message}
+ is non-NULL and non-empty, the error string printed is preceded
+ by @var{message}, a colon, and a space. It is followed by a newline.
+*/
-void bfd_default_error_trap(error_tag)
-bfd_ec error_tag;
+void
+bfd_perror (const char *message)
{
- printf("bfd assert fail (%s)\n", bfd_errmsg(error_tag));
+ fflush (stdout);
+ if (message == NULL || *message == '\0')
+ fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ()));
+ else
+ fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ()));
+ fflush (stderr);
}
-void (*bfd_error_trap)() = bfd_default_error_trap;
-void (*bfd_error_nonrepresentabltrap)() = bfd_default_error_trap;
+/*
+SUBSECTION
+ BFD error handler
+
+ Some BFD functions want to print messages describing the
+ problem. They call a BFD error handler function. This
+ function may be overridden by the program.
+
+ The BFD error handler acts like printf.
+
+CODE_FRAGMENT
+.
+.typedef void (*bfd_error_handler_type) (const char *, ...);
+.
+*/
+
+/* The program name used when printing BFD error messages. */
+
+static const char *_bfd_error_program_name;
+
+/* This is the default routine to handle BFD error messages.
+ Like fprintf (stderr, ...), but also handles some extra format specifiers.
+
+ %A section name from section. For group components, print group name too.
+ %B file name from bfd. For archive components, prints archive too.
+
+ Note - because these two extra format specifiers require special handling
+ they are scanned for and processed in this function, before calling
+ vfprintf. This means that the *arguments* for these format specifiers
+ must be the first ones in the variable argument list, regardless of where
+ the specifiers appear in the format string. Thus for example calling
+ this function with a format string of:
+
+ "blah %s blah %A blah %d blah %B"
+
+ would involve passing the arguments as:
+
+ "blah %s blah %A blah %d blah %B",
+ asection_for_the_%A,
+ bfd_for_the_%B,
+ string_for_the_%s,
+ integer_for_the_%d);
+ */
void
-DEFUN(bfd_perror,(message),
- CONST char *message)
+_bfd_default_error_handler (const char *fmt, ...)
{
- if (bfd_error == system_call_error)
- perror((char *)message); /* must be system error then... */
- else {
- if (message == NULL || *message == '\0')
- fprintf (stderr, "%s\n", bfd_errmsg (bfd_error));
- else
- fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_error));
- }
-}
+ va_list ap;
+ char *bufp;
+ const char *new_fmt, *p;
+ size_t avail = 1000;
+ char buf[1000];
+
+ /* PR 4992: Don't interrupt output being sent to stdout. */
+ fflush (stdout);
+
+ if (_bfd_error_program_name != NULL)
+ fprintf (stderr, "%s: ", _bfd_error_program_name);
+ else
+ fprintf (stderr, "BFD: ");
+
+ va_start (ap, fmt);
+ new_fmt = fmt;
+ bufp = buf;
+
+ /* Reserve enough space for the existing format string. */
+ avail -= strlen (fmt) + 1;
+ if (avail > 1000)
+ _exit (EXIT_FAILURE);
+
+ p = fmt;
+ while (1)
+ {
+ char *q;
+ size_t len, extra, trim;
+
+ p = strchr (p, '%');
+ if (p == NULL || p[1] == '\0')
+ {
+ if (new_fmt == buf)
+ {
+ len = strlen (fmt);
+ memcpy (bufp, fmt, len + 1);
+ }
+ break;
+ }
-/* for error messages */
-char *
-bfd_format_string (format)
- bfd_format format;
-{
- if (((int)format <(int) bfd_unknown) || ((int)format >=(int) bfd_type_end)) return "invalid";
-
- switch (format) {
- case bfd_object: return "object"; /* linker/assember/compiler output */
- case bfd_archive: return "archive"; /* object archive file */
- case bfd_core: return "core"; /* core dump */
- default: return "unknown";
- }
+ if (p[1] == 'A' || p[1] == 'B')
+ {
+ len = p - fmt;
+ memcpy (bufp, fmt, len);
+ bufp += len;
+ fmt = p + 2;
+ new_fmt = buf;
+
+ /* If we run out of space, tough, you lose your ridiculously
+ long file or section name. It's not safe to try to alloc
+ memory here; We might be printing an out of memory message. */
+ if (avail == 0)
+ {
+ *bufp++ = '*';
+ *bufp++ = '*';
+ *bufp = '\0';
+ }
+ else
+ {
+ if (p[1] == 'B')
+ {
+ bfd *abfd = va_arg (ap, bfd *);
+
+ if (abfd == NULL)
+ /* Invoking %B with a null bfd pointer is an internal error. */
+ abort ();
+ else if (abfd->my_archive)
+ snprintf (bufp, avail, "%s(%s)",
+ abfd->my_archive->filename, abfd->filename);
+ else
+ snprintf (bufp, avail, "%s", abfd->filename);
+ }
+ else
+ {
+ asection *sec = va_arg (ap, asection *);
+ bfd *abfd;
+ const char *group = NULL;
+ struct coff_comdat_info *ci;
+
+ if (sec == NULL)
+ /* Invoking %A with a null section pointer is an internal error. */
+ abort ();
+ abfd = sec->owner;
+ if (abfd != NULL
+ && bfd_get_flavour (abfd) == bfd_target_elf_flavour
+ && elf_next_in_group (sec) != NULL
+ && (sec->flags & SEC_GROUP) == 0)
+ group = elf_group_name (sec);
+ else if (abfd != NULL
+ && bfd_get_flavour (abfd) == bfd_target_coff_flavour
+ && (ci = bfd_coff_get_comdat_section (sec->owner,
+ sec)) != NULL)
+ group = ci->name;
+ if (group != NULL)
+ snprintf (bufp, avail, "%s[%s]", sec->name, group);
+ else
+ snprintf (bufp, avail, "%s", sec->name);
+ }
+ len = strlen (bufp);
+ avail = avail - len + 2;
+
+ /* We need to replace any '%' we printed by "%%".
+ First count how many. */
+ q = bufp;
+ bufp += len;
+ extra = 0;
+ while ((q = strchr (q, '%')) != NULL)
+ {
+ ++q;
+ ++extra;
+ }
+
+ /* If there isn't room, trim off the end of the string. */
+ q = bufp;
+ bufp += extra;
+ if (extra > avail)
+ {
+ trim = extra - avail;
+ bufp -= trim;
+ do
+ {
+ if (*--q == '%')
+ --extra;
+ }
+ while (--trim != 0);
+ *q = '\0';
+ avail = extra;
+ }
+ avail -= extra;
+
+ /* Now double all '%' chars, shuffling the string as we go. */
+ while (extra != 0)
+ {
+ while ((q[extra] = *q) != '%')
+ --q;
+ q[--extra] = '%';
+ --q;
+ }
+ }
+ }
+ p = p + 2;
+ }
+
+ vfprintf (stderr, new_fmt, ap);
+ va_end (ap);
+
+ /* On AIX, putc is implemented as a macro that triggers a -Wunused-value
+ warning, so use the fputc function to avoid it. */
+ fputc ('\n', stderr);
+ fflush (stderr);
}
-\f
-/** Target configurations */
-extern bfd_target *target_vector[];
+/* This is a function pointer to the routine which should handle BFD
+ error messages. It is called when a BFD routine encounters an
+ error for which it wants to print a message. Going through a
+ function pointer permits a program linked against BFD to intercept
+ the messages and deal with them itself. */
-/* Returns a pointer to the transfer vector for the object target
- named target_name. If target_name is NULL, chooses the one in the
- environment variable GNUTARGET; if that is null or not defined then
- the first entry in the target list is chosen. Passing in the
- string "default" or setting the environment variable to "default"
- will cause the first entry in the target list to be returned. */
+bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler;
-bfd_target *
-DEFUN(bfd_find_target,(target_name),
- CONST char *target_name)
-{
- bfd_target **target;
- extern char *getenv ();
- CONST char *targname = (target_name ? target_name : getenv ("GNUTARGET"));
+/*
+FUNCTION
+ bfd_set_error_handler
- /* This is safe; the vector cannot be null */
- if (targname == NULL || !strcmp (targname, "default"))
- return target_vector[0];
+SYNOPSIS
+ bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
- for (target = &target_vector[0]; *target != NULL; target++) {
- if (!strcmp (targname, (*target)->name))
- return *target;
- }
+DESCRIPTION
+ Set the BFD error handler function. Returns the previous
+ function.
+*/
+
+bfd_error_handler_type
+bfd_set_error_handler (bfd_error_handler_type pnew)
+{
+ bfd_error_handler_type pold;
- bfd_error = invalid_target;
- return NULL;
+ pold = _bfd_error_handler;
+ _bfd_error_handler = pnew;
+ return pold;
}
-/* Returns a freshly-consed, NULL-terminated vector of the names of all the
- valid bfd targets. Do not modify the names */
+/*
+FUNCTION
+ bfd_set_error_program_name
+
+SYNOPSIS
+ void bfd_set_error_program_name (const char *);
-char **
-bfd_target_list ()
+DESCRIPTION
+ Set the program name to use when printing a BFD error. This
+ is printed before the error message followed by a colon and
+ space. The string must not be changed after it is passed to
+ this function.
+*/
+
+void
+bfd_set_error_program_name (const char *name)
{
- int vec_length= 0;
- bfd_target **target;
- char **name_list, **name_ptr;
+ _bfd_error_program_name = name;
+}
+
+/*
+FUNCTION
+ bfd_get_error_handler
+
+SYNOPSIS
+ bfd_error_handler_type bfd_get_error_handler (void);
+
+DESCRIPTION
+ Return the BFD error handler function.
+*/
- for (target = &target_vector[0]; *target != NULL; target++)
- vec_length++;
+bfd_error_handler_type
+bfd_get_error_handler (void)
+{
+ return _bfd_error_handler;
+}
- name_ptr = name_list = (char **) zalloc ((vec_length + 1) * sizeof (char **));
+/*
+SUBSECTION
+ BFD assert handler
+
+ If BFD finds an internal inconsistency, the bfd assert
+ handler is called with information on the BFD version, BFD
+ source file and line. If this happens, most programs linked
+ against BFD are expected to want to exit with an error, or mark
+ the current BFD operation as failed, so it is recommended to
+ override the default handler, which just calls
+ _bfd_error_handler and continues.
+
+CODE_FRAGMENT
+.
+.typedef void (*bfd_assert_handler_type) (const char *bfd_formatmsg,
+. const char *bfd_version,
+. const char *bfd_file,
+. int bfd_line);
+.
+*/
- if (name_list == NULL) {
- bfd_error = no_memory;
- return NULL;
- }
+/* Note the use of bfd_ prefix on the parameter names above: we want to
+ show which one is the message and which is the version by naming the
+ parameters, but avoid polluting the program-using-bfd namespace as
+ the typedef is visible in the exported headers that the program
+ includes. Below, it's just for consistency. */
- for (target = &target_vector[0]; *target != NULL; target++)
- *(name_ptr++) = (*target)->name;
+static void
+_bfd_default_assert_handler (const char *bfd_formatmsg,
+ const char *bfd_version,
+ const char *bfd_file,
+ int bfd_line)
- return name_list;
+{
+ (*_bfd_error_handler) (bfd_formatmsg, bfd_version, bfd_file, bfd_line);
}
-/** Init a bfd for read of the proper format.
- */
+/* Similar to _bfd_error_handler, a program can decide to exit on an
+ internal BFD error. We use a non-variadic type to simplify passing
+ on parameters to other functions, e.g. _bfd_error_handler. */
-/* We should be able to find out if the target was defaulted or user-specified.
- If the user specified the target explicitly then we should do no search.
- I guess the best way to do this is to pass an extra argument which specifies
- the DWIM. */
-
-/* I have chanegd this always to set the filepos to the origin before
- guessing. -- Gumby, 14 Februar 1991*/
-
-boolean
-DEFUN(bfd_check_format,(abfd, format),
- bfd *abfd AND
- bfd_format format)
-{
- bfd_target **target, *save_targ, *right_targ;
- int match_count;
-
- if (!bfd_read_p (abfd) ||
- ((int)(abfd->format) < (int)bfd_unknown) ||
- ((int)(abfd->format) >= (int)bfd_type_end)) {
- bfd_error = invalid_operation;
- return false;
- }
-
- if (abfd->format != bfd_unknown) return (abfd->format == format) ? true:false;
-
- /* presume the answer is yes */
- abfd->format = format;
-
- bfd_seek (abfd, (file_ptr)0, SEEK_SET); /* rewind! */
-
- right_targ = BFD_SEND_FMT (abfd, _bfd_check_format, (abfd));
- if (right_targ) {
- abfd->xvec = right_targ; /* Set the target as returned */
- return true; /* File position has moved, BTW */
- }
-
- /* This isn't a <format> file in the specified or defaulted target type.
- See if we recognize it for any other target type. (We check them
- all to make sure it's uniquely recognized.) */
-
- save_targ = abfd->xvec;
- match_count = 0;
- right_targ = 0;
-
- for (target = target_vector; *target != NULL; target++) {
- bfd_target *temp;
-
- abfd->xvec = *target; /* Change BFD's target temporarily */
- bfd_seek (abfd, (file_ptr)0, SEEK_SET);
- temp = BFD_SEND_FMT (abfd, _bfd_check_format, (abfd));
- if (temp) { /* This format checks out as ok! */
- right_targ = temp;
- match_count++;
-#ifdef GNU960
- /* Big- and little-endian b.out archives look the same, but it doesn't
- * matter: there is no difference in their headers, and member file byte
- * orders will (I hope) be handled appropriately by bfd. Ditto for big
- * and little coff archives. And the 4 coff/b.out object formats are
- * unambiguous. So accept the first match we find.
- */
- break;
-#endif
- }
- }
-
- if (match_count == 1) {
- abfd->xvec = right_targ; /* Change BFD's target permanently */
- return true; /* File position has moved, BTW */
- }
-
- abfd->xvec = save_targ; /* Restore original target type */
- abfd->format = bfd_unknown; /* Restore original format */
- bfd_error = ((match_count == 0) ? file_not_recognized :
- file_ambiguously_recognized);
- return false;
- }
+bfd_assert_handler_type _bfd_assert_handler = _bfd_default_assert_handler;
+
+/*
+FUNCTION
+ bfd_set_assert_handler
+
+SYNOPSIS
+ bfd_assert_handler_type bfd_set_assert_handler (bfd_assert_handler_type);
+
+DESCRIPTION
+ Set the BFD assert handler function. Returns the previous
+ function.
+*/
-boolean
-DEFUN(bfd_set_format,(abfd, format),
- bfd *abfd AND
- bfd_format format)
+bfd_assert_handler_type
+bfd_set_assert_handler (bfd_assert_handler_type pnew)
{
+ bfd_assert_handler_type pold;
- if (bfd_read_p (abfd) ||
- ((int)abfd->format < (int)bfd_unknown) ||
- ((int)abfd->format >= (int)bfd_type_end)) {
- bfd_error = invalid_operation;
- return false;
- }
+ pold = _bfd_assert_handler;
+ _bfd_assert_handler = pnew;
+ return pold;
+}
- if (abfd->format != bfd_unknown) return (abfd->format == format) ? true:false;
+/*
+FUNCTION
+ bfd_get_assert_handler
- /* presume the answer is yes */
- abfd->format = format;
+SYNOPSIS
+ bfd_assert_handler_type bfd_get_assert_handler (void);
- if (!BFD_SEND_FMT (abfd, _bfd_set_format, (abfd))) {
- abfd->format = bfd_unknown;
- return false;
- }
+DESCRIPTION
+ Return the BFD assert handler function.
+*/
- return true;
+bfd_assert_handler_type
+bfd_get_assert_handler (void)
+{
+ return _bfd_assert_handler;
}
\f
-/* Hack object and core file sections */
-
-sec_ptr
-DEFUN(bfd_get_section_by_name,(abfd, name),
- bfd *abfd AND
- CONST char *name)
-{
- asection *sect;
-
- for (sect = abfd->sections; sect != NULL; sect = sect->next)
- if (!strcmp (sect->name, name)) return sect;
- return NULL;
-}
-
-/* If you try to create a section with a name which is already in use,
- returns the old section by that name instead. */
-sec_ptr
-DEFUN(bfd_make_section,(abfd, name),
- bfd *abfd AND
- CONST char *CONST name)
-{
- asection *newsect;
- asection ** prev = &abfd->sections;
- asection * sect = abfd->sections;
-
- if (abfd->output_has_begun) {
- bfd_error = invalid_operation;
- return NULL;
- }
-
- while (sect) {
- if (!strcmp(sect->name, name)) return sect;
- prev = §->next;
- sect = sect->next;
- }
-
- newsect = (asection *) bfd_zalloc(abfd, sizeof (asection));
- if (newsect == NULL) {
- bfd_error = no_memory;
- return NULL;
- }
-
- newsect->name = name;
- newsect->index = abfd->section_count++;
- newsect->flags = SEC_NO_FLAGS;
-
- newsect->userdata = 0;
- newsect->next = (asection *)NULL;
- newsect->relocation = (arelent *)NULL;
- newsect->reloc_count = 0;
- newsect->line_filepos =0;
-
- if (BFD_SEND (abfd, _new_section_hook, (abfd, newsect)) != true) {
- free (newsect);
- return NULL;
- }
-
- *prev = newsect;
- return newsect;
-}
-
-/* Call operation on each section. Operation gets three args: the bfd,
- the section, and a void * pointer (whatever the user supplied). */
-
-/* This is attractive except that without lexical closures its use is hard
- to make reentrant. */
-/*VARARGS2*/
-void
-bfd_map_over_sections (abfd, operation, user_storage)
- bfd *abfd;
- void (*operation)();
- PTR user_storage;
+/*
+INODE
+Miscellaneous, Memory Usage, Error reporting, BFD front end
+
+SECTION
+ Miscellaneous
+
+SUBSECTION
+ Miscellaneous functions
+*/
+
+/*
+FUNCTION
+ bfd_get_reloc_upper_bound
+
+SYNOPSIS
+ long bfd_get_reloc_upper_bound (bfd *abfd, asection *sect);
+
+DESCRIPTION
+ Return the number of bytes required to store the
+ relocation information associated with section @var{sect}
+ attached to bfd @var{abfd}. If an error occurs, return -1.
+
+*/
+
+long
+bfd_get_reloc_upper_bound (bfd *abfd, sec_ptr asect)
{
- asection *sect;
- int i = 0;
-
- for (sect = abfd->sections; sect != NULL; i++, sect = sect->next)
- (*operation) (abfd, sect, user_storage);
+ if (abfd->format != bfd_object)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
- if (i != abfd->section_count) /* Debugging */
- abort();
+ return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect));
}
-boolean
-bfd_set_section_flags (abfd, section, flags)
- bfd *abfd;
- sec_ptr section;
- flagword flags;
+/*
+FUNCTION
+ bfd_canonicalize_reloc
+
+SYNOPSIS
+ long bfd_canonicalize_reloc
+ (bfd *abfd, asection *sec, arelent **loc, asymbol **syms);
+
+DESCRIPTION
+ Call the back end associated with the open BFD
+ @var{abfd} and translate the external form of the relocation
+ information attached to @var{sec} into the internal canonical
+ form. Place the table into memory at @var{loc}, which has
+ been preallocated, usually by a call to
+ <<bfd_get_reloc_upper_bound>>. Returns the number of relocs, or
+ -1 on error.
+
+ The @var{syms} table is also needed for horrible internal magic
+ reasons.
+
+*/
+long
+bfd_canonicalize_reloc (bfd *abfd,
+ sec_ptr asect,
+ arelent **location,
+ asymbol **symbols)
{
- if ((flags & bfd_applicable_section_flags (abfd)) != flags) {
- bfd_error = invalid_operation;
- return false;
- }
+ if (abfd->format != bfd_object)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+ }
- section->flags = flags;
-return true;
+ return BFD_SEND (abfd, _bfd_canonicalize_reloc,
+ (abfd, asect, location, symbols));
}
+/*
+FUNCTION
+ bfd_set_reloc
-boolean
-bfd_set_section_size (abfd, ptr, val)
- bfd *abfd;
- sec_ptr ptr;
- unsigned long val;
-{
- /* Once you've started writing to any section you cannot create or change
- the size of any others. */
+SYNOPSIS
+ void bfd_set_reloc
+ (bfd *abfd, asection *sec, arelent **rel, unsigned int count);
+
+DESCRIPTION
+ Set the relocation pointer and count within
+ section @var{sec} to the values @var{rel} and @var{count}.
+ The argument @var{abfd} is ignored.
- if (abfd->output_has_begun) {
- bfd_error = invalid_operation;
- return false;
- }
+*/
- ptr->size = val;
-
- return true;
+void
+bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED,
+ sec_ptr asect,
+ arelent **location,
+ unsigned int count)
+{
+ asect->orelocation = location;
+ asect->reloc_count = count;
}
-boolean
-DEFUN(bfd_set_section_contents,(abfd, section, location, offset, count),
- bfd *abfd AND
- sec_ptr section AND
- PTR location AND
- file_ptr offset AND
- bfd_size_type count)
+/*
+FUNCTION
+ bfd_set_file_flags
+
+SYNOPSIS
+ bfd_boolean bfd_set_file_flags (bfd *abfd, flagword flags);
+
+DESCRIPTION
+ Set the flag word in the BFD @var{abfd} to the value @var{flags}.
+
+ Possible errors are:
+ o <<bfd_error_wrong_format>> - The target bfd was not of object format.
+ o <<bfd_error_invalid_operation>> - The target bfd was open for reading.
+ o <<bfd_error_invalid_operation>> -
+ The flag word contained a bit which was not applicable to the
+ type of file. E.g., an attempt was made to set the <<D_PAGED>> bit
+ on a BFD format which does not support demand paging.
+
+*/
+
+bfd_boolean
+bfd_set_file_flags (bfd *abfd, flagword flags)
{
- if (!(bfd_get_section_flags(abfd, section) &
- SEC_HAS_CONTENTS)) {
- bfd_error = no_contents;
- return(false);
- } /* if section has no contents */
+ if (abfd->format != bfd_object)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+
+ if (bfd_read_p (abfd))
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
- if (BFD_SEND (abfd, _bfd_set_section_contents,
- (abfd, section, location, offset, count))) {
- abfd->output_has_begun = true;
- return true;
- }
+ bfd_get_file_flags (abfd) = flags;
+ if ((flags & bfd_applicable_file_flags (abfd)) != flags)
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
- return false;
+ return TRUE;
}
-boolean
-DEFUN(bfd_get_section_contents,(abfd, section, location, offset, count),
- bfd *abfd AND
- sec_ptr section AND
- PTR location AND
- file_ptr offset AND
- bfd_size_type count)
+void
+bfd_assert (const char *file, int line)
{
- if (section->flags & SEC_CONSTRUCTOR) {
- memset(location, 0, (unsigned)count);
- return true;
- }
- else {
- return (BFD_SEND (abfd, _bfd_get_section_contents,
- (abfd, section, location, offset, count)));
- }
+ (*_bfd_assert_handler) (_("BFD %s assertion fail %s:%d"),
+ BFD_VERSION_STRING, file, line);
}
-\f
-/** Some core file info commands */
-
-/* Returns a read-only string explaining what program was running when
- it failed. */
+/* A more or less friendly abort message. In libbfd.h abort is
+ defined to call this function. */
-char *
-bfd_core_file_failing_command (abfd)
- bfd *abfd;
+void
+_bfd_abort (const char *file, int line, const char *fn)
{
- if (abfd->format != bfd_core) {
- bfd_error = invalid_operation;
- return NULL;
- }
- return BFD_SEND (abfd, _core_file_failing_command, (abfd));
+ if (fn != NULL)
+ (*_bfd_error_handler)
+ (_("BFD %s internal error, aborting at %s line %d in %s\n"),
+ BFD_VERSION_STRING, file, line, fn);
+ else
+ (*_bfd_error_handler)
+ (_("BFD %s internal error, aborting at %s line %d\n"),
+ BFD_VERSION_STRING, file, line);
+ (*_bfd_error_handler) (_("Please report this bug.\n"));
+ _exit (EXIT_FAILURE);
}
+/*
+FUNCTION
+ bfd_get_arch_size
+
+SYNOPSIS
+ int bfd_get_arch_size (bfd *abfd);
+
+DESCRIPTION
+ 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.
+*/
+
int
-bfd_core_file_failing_signal (abfd)
- bfd *abfd;
+bfd_get_arch_size (bfd *abfd)
{
- if (abfd->format != bfd_core) {
- bfd_error = invalid_operation;
- return 0;
- }
- return BFD_SEND (abfd, _core_file_failing_signal, (abfd));
+ if (abfd->xvec->flavour == bfd_target_elf_flavour)
+ return get_elf_backend_data (abfd)->s->arch_size;
+
+ return bfd_arch_bits_per_address (abfd) > 32 ? 64 : 32;
}
-boolean
-core_file_matches_executable_p (core_bfd, exec_bfd)
- bfd *core_bfd, *exec_bfd;
+/*
+FUNCTION
+ bfd_get_sign_extend_vma
+
+SYNOPSIS
+ int bfd_get_sign_extend_vma (bfd *abfd);
+
+DESCRIPTION
+ Indicates if the target architecture "naturally" sign extends
+ an address. Some architectures implicitly sign extend address
+ values when they are converted to types larger than the size
+ of an address. For instance, bfd_get_start_address() will
+ return an address sign extended to fill a bfd_vma when this is
+ the case.
+
+RETURNS
+ Returns <<1>> if the target architecture is known to sign
+ extend addresses, <<0>> if the target architecture is known to
+ not sign extend addresses, and <<-1>> otherwise.
+*/
+
+int
+bfd_get_sign_extend_vma (bfd *abfd)
{
- if ((core_bfd->format != bfd_core) || (exec_bfd->format != bfd_object)) {
- bfd_error = wrong_format;
- return false;
- }
+ char *name;
+
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+ return get_elf_backend_data (abfd)->sign_extend_vma;
+
+ name = bfd_get_target (abfd);
+
+ /* Return a proper value for DJGPP & PE COFF.
+ This function is required for DWARF2 support, but there is
+ no place to store this information in the COFF back end.
+ Should enough other COFF targets add support for DWARF2,
+ a place will have to be found. Until then, this hack will do. */
+ if (CONST_STRNEQ (name, "coff-go32")
+ || strcmp (name, "pe-i386") == 0
+ || strcmp (name, "pei-i386") == 0
+ || strcmp (name, "pe-x86-64") == 0
+ || strcmp (name, "pei-x86-64") == 0
+ || strcmp (name, "pe-arm-wince-little") == 0
+ || strcmp (name, "pei-arm-wince-little") == 0
+ || strcmp (name, "aixcoff-rs6000") == 0)
+ return 1;
+
+ if (CONST_STRNEQ (name, "mach-o"))
+ return 0;
- return BFD_SEND (core_bfd, _core_file_matches_executable_p, (core_bfd, exec_bfd));
+ bfd_set_error (bfd_error_wrong_format);
+ return -1;
}
-\f
-/** Symbols */
-boolean
-bfd_set_symtab (abfd, location, symcount)
- bfd *abfd;
- asymbol **location;
- unsigned int symcount;
-{
- if ((abfd->format != bfd_object) || (bfd_read_p (abfd))) {
- bfd_error = invalid_operation;
- return false;
- }
+/*
+FUNCTION
+ bfd_set_start_address
+
+SYNOPSIS
+ bfd_boolean bfd_set_start_address (bfd *abfd, bfd_vma vma);
+
+DESCRIPTION
+ Make @var{vma} the entry point of output BFD @var{abfd}.
+
+RETURNS
+ Returns <<TRUE>> on success, <<FALSE>> otherwise.
+*/
- bfd_get_outsymbols (abfd) = location;
- bfd_get_symcount (abfd) = symcount;
- return true;
+bfd_boolean
+bfd_set_start_address (bfd *abfd, bfd_vma vma)
+{
+ abfd->start_address = vma;
+ return TRUE;
}
-/* returns the number of octets of storage required */
+/*
+FUNCTION
+ bfd_get_gp_size
+
+SYNOPSIS
+ unsigned int bfd_get_gp_size (bfd *abfd);
+
+DESCRIPTION
+ Return the maximum size of objects to be optimized using the GP
+ register under MIPS ECOFF. This is typically set by the <<-G>>
+ argument to the compiler, assembler or linker.
+*/
+
unsigned int
-get_reloc_upper_bound (abfd, asect)
- bfd *abfd;
- sec_ptr asect;
+bfd_get_gp_size (bfd *abfd)
{
- if (abfd->format != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
- }
-
- return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect));
+ if (abfd->format == bfd_object)
+ {
+ if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
+ return ecoff_data (abfd)->gp_size;
+ else if (abfd->xvec->flavour == bfd_target_elf_flavour)
+ return elf_gp_size (abfd);
+ }
+ return 0;
}
-unsigned int
-bfd_canonicalize_reloc (abfd, asect, location, symbols)
- bfd *abfd;
- sec_ptr asect;
- arelent **location;
- asymbol **symbols;
-{
- if (abfd->format != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
- }
+/*
+FUNCTION
+ bfd_set_gp_size
- return BFD_SEND (abfd, _bfd_canonicalize_reloc, (abfd, asect, location, symbols));
-}
+SYNOPSIS
+ void bfd_set_gp_size (bfd *abfd, unsigned int i);
+
+DESCRIPTION
+ Set the maximum size of objects to be optimized using the GP
+ register under ECOFF or MIPS ELF. This is typically set by
+ the <<-G>> argument to the compiler, assembler or linker.
+*/
void
-bfd_print_symbol_vandf(file, symbol)
-PTR file;
-asymbol *symbol;
-{
- flagword type = symbol->flags;
- if (symbol->section != (asection *)NULL)
- {
-
- fprintf_vma(file, symbol->value+symbol->section->vma);
- }
- else
- {
- fprintf_vma(file, symbol->value);
- }
- fprintf(file," %c%c%c%c%c%c%c",
- (type & BSF_LOCAL) ? 'l':' ',
- (type & BSF_GLOBAL) ? 'g' : ' ',
- (type & BSF_IMPORT) ? 'i' : ' ',
- (type & BSF_EXPORT) ? 'e' : ' ',
- (type & BSF_UNDEFINED) ? 'u' : ' ',
- (type & BSF_FORT_COMM) ? 'c' : ' ',
- (type & BSF_DEBUGGING) ? 'd' :' ');
-
-}
-
-
-boolean
-bfd_set_file_flags (abfd, flags)
- bfd *abfd;
- flagword flags;
-{
- if (abfd->format != bfd_object) {
- bfd_error = wrong_format;
- return false;
- }
-
- if (bfd_read_p (abfd)) {
- bfd_error = invalid_operation;
- return false;
- }
-
- if ((flags & bfd_applicable_file_flags (abfd)) != flags) {
- bfd_error = invalid_operation;
- return false;
- }
+bfd_set_gp_size (bfd *abfd, unsigned int i)
+{
+ /* Don't try to set GP size on an archive or core file! */
+ if (abfd->format != bfd_object)
+ return;
+
+ if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
+ ecoff_data (abfd)->gp_size = i;
+ else if (abfd->xvec->flavour == bfd_target_elf_flavour)
+ elf_gp_size (abfd) = i;
+}
- bfd_get_file_flags (abfd) = flags;
-return true;
+/* Get the GP value. This is an internal function used by some of the
+ relocation special_function routines on targets which support a GP
+ register. */
+
+bfd_vma
+_bfd_get_gp_value (bfd *abfd)
+{
+ if (! abfd)
+ return 0;
+ if (abfd->format != bfd_object)
+ return 0;
+
+ if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
+ return ecoff_data (abfd)->gp;
+ else if (abfd->xvec->flavour == bfd_target_elf_flavour)
+ return elf_gp (abfd);
+
+ return 0;
}
+/* Set the GP value. */
void
-bfd_set_reloc (ignore_abfd, asect, location, count)
- bfd *ignore_abfd;
- sec_ptr asect;
- arelent **location;
- unsigned int count;
+_bfd_set_gp_value (bfd *abfd, bfd_vma v)
{
- asect->orelocation = location;
- asect->reloc_count = count;
+ if (! abfd)
+ abort ();
+ if (abfd->format != bfd_object)
+ return;
+
+ if (abfd->xvec->flavour == bfd_target_ecoff_flavour)
+ ecoff_data (abfd)->gp = v;
+ else if (abfd->xvec->flavour == bfd_target_elf_flavour)
+ elf_gp (abfd) = v;
}
+
/*
-If an output_bfd is supplied to this function the generated image
-will be relocatable, the relocations are copied to the output file
-after they have been changed to reflect the new state of the world.
-There are two ways of reflecting the results of partial linkage in an
-output file; by modifying the output data in place, and by modifying
-the relocation record. Some native formats (eg basic a.out and basic
-coff) have no way of specifying an addend in the relocation type, so
-the addend has to go in the output data. This is no big deal since in
-these formats the output data slot will always be big enough for the
-addend. Complex reloc types with addends were invented to solve just
-this problem.
-*/
-
-bfd_reloc_status_enum_type
-DEFUN(bfd_perform_relocation,(abfd,
- reloc_entry,
- data,
- input_section,
- output_bfd),
- bfd *abfd AND
- arelent *reloc_entry AND
- PTR data AND
- asection *input_section AND
- bfd *output_bfd)
-{
- bfd_vma relocation;
- bfd_reloc_status_enum_type flag = bfd_reloc_ok;
- bfd_vma addr = reloc_entry->address ;
- bfd_vma output_base = 0;
- reloc_howto_type *howto = reloc_entry->howto;
- asection *reloc_target_output_section;
- asection *reloc_target_input_section;
- asymbol *symbol;
-
- if (reloc_entry->sym_ptr_ptr) {
- symbol = *( reloc_entry->sym_ptr_ptr);
- if ((symbol->flags & BSF_UNDEFINED) && output_bfd == (bfd *)NULL) {
- flag = bfd_reloc_undefined;
- }
- }
- else {
- symbol = (asymbol*)NULL;
- }
-
- if (howto->special_function){
- bfd_reloc_status_enum_type cont;
- cont = howto->special_function(abfd,
- reloc_entry,
- symbol,
- data,
- input_section);
- if (cont != bfd_reloc_continue) return cont;
- }
-
- /*
- Work out which section the relocation is targetted at and the
- initial relocation command value.
- */
-
-
- if (symbol != (asymbol *)NULL){
- if (symbol->flags & BSF_FORT_COMM) {
- relocation = 0;
- }
- else {
- relocation = symbol->value;
- }
- if (symbol->section != (asection *)NULL)
+FUNCTION
+ bfd_scan_vma
+
+SYNOPSIS
+ bfd_vma bfd_scan_vma (const char *string, const char **end, int base);
+
+DESCRIPTION
+ Convert, like <<strtoul>>, a numerical expression
+ @var{string} into a <<bfd_vma>> integer, and return that integer.
+ (Though without as many bells and whistles as <<strtoul>>.)
+ The expression is assumed to be unsigned (i.e., positive).
+ If given a @var{base}, it is used as the base for conversion.
+ A base of 0 causes the function to interpret the string
+ in hex if a leading "0x" or "0X" is found, otherwise
+ in octal if a leading zero is found, otherwise in decimal.
+
+ If the value would overflow, the maximum <<bfd_vma>> value is
+ returned.
+*/
+
+bfd_vma
+bfd_scan_vma (const char *string, const char **end, int base)
+{
+ bfd_vma value;
+ bfd_vma cutoff;
+ unsigned int cutlim;
+ int overflow;
+
+ /* Let the host do it if possible. */
+ if (sizeof (bfd_vma) <= sizeof (unsigned long))
+ return strtoul (string, (char **) end, base);
+
+#ifdef HAVE_STRTOULL
+ if (sizeof (bfd_vma) <= sizeof (unsigned long long))
+ return strtoull (string, (char **) end, base);
+#endif
+
+ if (base == 0)
+ {
+ if (string[0] == '0')
{
- reloc_target_input_section = symbol->section;
+ if ((string[1] == 'x') || (string[1] == 'X'))
+ base = 16;
+ else
+ base = 8;
}
- else {
- reloc_target_input_section = (asection *)NULL;
}
- }
- else if (reloc_entry->section != (asection *)NULL)
- {
- relocation = 0;
- reloc_target_input_section = reloc_entry->section;
- }
- else {
- relocation = 0;
- reloc_target_input_section = (asection *)NULL;
- }
-
- if (reloc_target_input_section != (asection *)NULL) {
+ if ((base < 2) || (base > 36))
+ base = 10;
- reloc_target_output_section =
- reloc_target_input_section->output_section;
+ if (base == 16
+ && string[0] == '0'
+ && (string[1] == 'x' || string[1] == 'X')
+ && ISXDIGIT (string[2]))
+ {
+ string += 2;
+ }
- if (output_bfd && howto->partial_inplace==false) {
- output_base = 0;
+ cutoff = (~ (bfd_vma) 0) / (bfd_vma) base;
+ cutlim = (~ (bfd_vma) 0) % (bfd_vma) base;
+ value = 0;
+ overflow = 0;
+ while (1)
+ {
+ unsigned int digit;
+
+ digit = *string;
+ if (ISDIGIT (digit))
+ digit = digit - '0';
+ else if (ISALPHA (digit))
+ digit = TOUPPER (digit) - 'A' + 10;
+ else
+ break;
+ if (digit >= (unsigned int) base)
+ break;
+ if (value > cutoff || (value == cutoff && digit > cutlim))
+ overflow = 1;
+ value = value * base + digit;
+ ++string;
}
- else {
- output_base = reloc_target_output_section->vma;
+ if (overflow)
+ value = ~ (bfd_vma) 0;
+
+ if (end != NULL)
+ *end = string;
+
+ return value;
+}
+
+/*
+FUNCTION
+ bfd_copy_private_header_data
+
+SYNOPSIS
+ bfd_boolean bfd_copy_private_header_data (bfd *ibfd, bfd *obfd);
+
+DESCRIPTION
+ Copy private BFD header information from the BFD @var{ibfd} to the
+ the BFD @var{obfd}. This copies information that may require
+ sections to exist, but does not require symbol tables. Return
+ <<true>> on success, <<false>> on error.
+ Possible error returns are:
+
+ o <<bfd_error_no_memory>> -
+ Not enough memory exists to create private data for @var{obfd}.
+
+.#define bfd_copy_private_header_data(ibfd, obfd) \
+. BFD_SEND (obfd, _bfd_copy_private_header_data, \
+. (ibfd, obfd))
+
+*/
+
+/*
+FUNCTION
+ bfd_copy_private_bfd_data
+
+SYNOPSIS
+ bfd_boolean bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd);
+
+DESCRIPTION
+ Copy private BFD information from the BFD @var{ibfd} to the
+ the BFD @var{obfd}. Return <<TRUE>> on success, <<FALSE>> on error.
+ Possible error returns are:
+
+ o <<bfd_error_no_memory>> -
+ Not enough memory exists to create private data for @var{obfd}.
+
+.#define bfd_copy_private_bfd_data(ibfd, obfd) \
+. BFD_SEND (obfd, _bfd_copy_private_bfd_data, \
+. (ibfd, obfd))
+
+*/
+
+/*
+FUNCTION
+ bfd_merge_private_bfd_data
+
+SYNOPSIS
+ bfd_boolean bfd_merge_private_bfd_data (bfd *ibfd, bfd *obfd);
+
+DESCRIPTION
+ Merge private BFD information from the BFD @var{ibfd} to the
+ the output file BFD @var{obfd} when linking. Return <<TRUE>>
+ on success, <<FALSE>> on error. Possible error returns are:
+
+ o <<bfd_error_no_memory>> -
+ Not enough memory exists to create private data for @var{obfd}.
+
+.#define bfd_merge_private_bfd_data(ibfd, obfd) \
+. BFD_SEND (obfd, _bfd_merge_private_bfd_data, \
+. (ibfd, obfd))
+
+*/
+
+/*
+FUNCTION
+ bfd_set_private_flags
+
+SYNOPSIS
+ bfd_boolean bfd_set_private_flags (bfd *abfd, flagword flags);
+
+DESCRIPTION
+ Set private BFD flag information in the BFD @var{abfd}.
+ Return <<TRUE>> on success, <<FALSE>> on error. Possible error
+ returns are:
+
+ o <<bfd_error_no_memory>> -
+ Not enough memory exists to create private data for @var{obfd}.
+
+.#define bfd_set_private_flags(abfd, flags) \
+. BFD_SEND (abfd, _bfd_set_private_flags, (abfd, flags))
+
+*/
+
+/*
+FUNCTION
+ Other functions
+
+DESCRIPTION
+ The following functions exist but have not yet been documented.
+
+.#define bfd_sizeof_headers(abfd, info) \
+. BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, info))
+.
+.#define bfd_find_nearest_line(abfd, sec, syms, off, file, func, line) \
+. BFD_SEND (abfd, _bfd_find_nearest_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, \
+. (abfd, syms, sec, off, file, func, line, disc))
+.
+.#define bfd_find_line(abfd, syms, sym, file, line) \
+. BFD_SEND (abfd, _bfd_find_line, \
+. (abfd, syms, sym, file, line))
+.
+.#define bfd_find_inliner_info(abfd, file, func, line) \
+. BFD_SEND (abfd, _bfd_find_inliner_info, \
+. (abfd, file, func, line))
+.
+.#define bfd_debug_info_start(abfd) \
+. BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
+.
+.#define bfd_debug_info_end(abfd) \
+. BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
+.
+.#define bfd_debug_info_accumulate(abfd, section) \
+. BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
+.
+.#define bfd_stat_arch_elt(abfd, stat) \
+. BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
+.
+.#define bfd_update_armap_timestamp(abfd) \
+. BFD_SEND (abfd, _bfd_update_armap_timestamp, (abfd))
+.
+.#define bfd_set_arch_mach(abfd, arch, mach)\
+. BFD_SEND ( abfd, _bfd_set_arch_mach, (abfd, arch, mach))
+.
+.#define bfd_relax_section(abfd, section, link_info, again) \
+. BFD_SEND (abfd, _bfd_relax_section, (abfd, section, link_info, again))
+.
+.#define bfd_gc_sections(abfd, link_info) \
+. BFD_SEND (abfd, _bfd_gc_sections, (abfd, link_info))
+.
+.#define bfd_lookup_section_flags(link_info, flag_info, section) \
+. BFD_SEND (abfd, _bfd_lookup_section_flags, (link_info, flag_info, section))
+.
+.#define bfd_merge_sections(abfd, link_info) \
+. BFD_SEND (abfd, _bfd_merge_sections, (abfd, link_info))
+.
+.#define bfd_is_group_section(abfd, sec) \
+. BFD_SEND (abfd, _bfd_is_group_section, (abfd, sec))
+.
+.#define bfd_discard_group(abfd, sec) \
+. BFD_SEND (abfd, _bfd_discard_group, (abfd, sec))
+.
+.#define bfd_link_hash_table_create(abfd) \
+. BFD_SEND (abfd, _bfd_link_hash_table_create, (abfd))
+.
+.#define bfd_link_add_symbols(abfd, info) \
+. BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info))
+.
+.#define bfd_link_just_syms(abfd, sec, info) \
+. BFD_SEND (abfd, _bfd_link_just_syms, (sec, info))
+.
+.#define bfd_final_link(abfd, info) \
+. BFD_SEND (abfd, _bfd_final_link, (abfd, info))
+.
+.#define bfd_free_cached_info(abfd) \
+. BFD_SEND (abfd, _bfd_free_cached_info, (abfd))
+.
+.#define bfd_get_dynamic_symtab_upper_bound(abfd) \
+. BFD_SEND (abfd, _bfd_get_dynamic_symtab_upper_bound, (abfd))
+.
+.#define bfd_print_private_bfd_data(abfd, file)\
+. BFD_SEND (abfd, _bfd_print_private_bfd_data, (abfd, file))
+.
+.#define bfd_canonicalize_dynamic_symtab(abfd, asymbols) \
+. BFD_SEND (abfd, _bfd_canonicalize_dynamic_symtab, (abfd, asymbols))
+.
+.#define bfd_get_synthetic_symtab(abfd, count, syms, dyncount, dynsyms, ret) \
+. BFD_SEND (abfd, _bfd_get_synthetic_symtab, (abfd, count, syms, \
+. dyncount, dynsyms, ret))
+.
+.#define bfd_get_dynamic_reloc_upper_bound(abfd) \
+. BFD_SEND (abfd, _bfd_get_dynamic_reloc_upper_bound, (abfd))
+.
+.#define bfd_canonicalize_dynamic_reloc(abfd, arels, asyms) \
+. BFD_SEND (abfd, _bfd_canonicalize_dynamic_reloc, (abfd, arels, asyms))
+.
+.extern bfd_byte *bfd_get_relocated_section_contents
+. (bfd *, struct bfd_link_info *, struct bfd_link_order *, bfd_byte *,
+. bfd_boolean, asymbol **);
+.
+
+*/
+
+bfd_byte *
+bfd_get_relocated_section_contents (bfd *abfd,
+ struct bfd_link_info *link_info,
+ struct bfd_link_order *link_order,
+ bfd_byte *data,
+ bfd_boolean relocatable,
+ asymbol **symbols)
+{
+ bfd *abfd2;
+ bfd_byte *(*fn) (bfd *, struct bfd_link_info *, struct bfd_link_order *,
+ bfd_byte *, bfd_boolean, asymbol **);
+
+ if (link_order->type == bfd_indirect_link_order)
+ {
+ abfd2 = link_order->u.indirect.section->owner;
+ if (abfd2 == NULL)
+ abfd2 = abfd;
}
+ else
+ abfd2 = abfd;
- relocation += output_base + reloc_target_input_section->output_offset;
- }
+ fn = abfd2->xvec->_bfd_get_relocated_section_contents;
- relocation += reloc_entry->addend ;
+ return (*fn) (abfd, link_info, link_order, data, relocatable, symbols);
+}
+/* Record information about an ELF program header. */
+
+bfd_boolean
+bfd_record_phdr (bfd *abfd,
+ unsigned long type,
+ bfd_boolean flags_valid,
+ flagword flags,
+ bfd_boolean at_valid,
+ bfd_vma at,
+ bfd_boolean includes_filehdr,
+ bfd_boolean includes_phdrs,
+ unsigned int count,
+ asection **secs)
+{
+ struct elf_segment_map *m, **pm;
+ bfd_size_type amt;
+
+ if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ return TRUE;
+
+ amt = sizeof (struct elf_segment_map);
+ amt += ((bfd_size_type) count - 1) * sizeof (asection *);
+ m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
+ if (m == NULL)
+ return FALSE;
+
+ m->p_type = type;
+ m->p_flags = flags;
+ m->p_paddr = at;
+ m->p_flags_valid = flags_valid;
+ m->p_paddr_valid = at_valid;
+ m->includes_filehdr = includes_filehdr;
+ m->includes_phdrs = includes_phdrs;
+ m->count = count;
+ if (count > 0)
+ memcpy (m->sections, secs, count * sizeof (asection *));
+
+ for (pm = &elf_seg_map (abfd); *pm != NULL; pm = &(*pm)->next)
+ ;
+ *pm = m;
+
+ return TRUE;
+}
- if(reloc_entry->address > (bfd_vma)(input_section->size))
- {
- return bfd_reloc_outofrange;
- }
-
+#ifdef BFD64
+/* Return true iff this target is 32-bit. */
- if (howto->pc_relative == true)
- {
- /*
- Anything which started out as pc relative should end up that
- way too.
+static bfd_boolean
+is32bit (bfd *abfd)
+{
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+ {
+ const struct elf_backend_data *bed = get_elf_backend_data (abfd);
+ return bed->s->elfclass == ELFCLASS32;
+ }
- There are two ways we can see a pcrel instruction. Sometimes
- the pcrel displacement has been partially calculated, it
- includes the distance from the start of the section to the
- instruction in it (eg sun3), and sometimes the field is
- totally blank - eg m88kbcs.
- */
+ /* For non-ELF targets, use architecture information. */
+ return bfd_arch_bits_per_address (abfd) <= 32;
+}
+#endif
-
- relocation -=
- output_base + input_section->output_offset;
+/* bfd_sprintf_vma and bfd_fprintf_vma display an address in the
+ target's address size. */
- if (howto->pcrel_offset == true) {
- relocation -= reloc_entry->address;
- }
+void
+bfd_sprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, char *buf, bfd_vma value)
+{
+#ifdef BFD64
+ if (is32bit (abfd))
+ {
+ sprintf (buf, "%08lx", (unsigned long) value & 0xffffffff);
+ return;
+ }
+#endif
+ sprintf_vma (buf, value);
+}
- }
-
- if (output_bfd!= (bfd *)NULL) {
- if ( howto->partial_inplace == false) {
- /*
- This is a partial relocation, and we want to apply the relocation
- to the reloc entry rather than the raw data. Modify the reloc
- inplace to reflect what we now know.
- */
- reloc_entry->addend = relocation ;
- reloc_entry->section = reloc_target_input_section;
- if (reloc_target_input_section != (asection *)NULL) {
- /* If we know the output section we can forget the symbol */
- reloc_entry->sym_ptr_ptr = (asymbol**)NULL;
- }
- reloc_entry->address +=
- input_section->output_offset;
- return flag;
+void
+bfd_fprintf_vma (bfd *abfd ATTRIBUTE_UNUSED, void *stream, bfd_vma value)
+{
+#ifdef BFD64
+ if (is32bit (abfd))
+ {
+ fprintf ((FILE *) stream, "%08lx", (unsigned long) value & 0xffffffff);
+ return;
}
- else
- {
- /* This is a partial relocation, but inplace, so modify the
- reloc record a bit
- */
+#endif
+ fprintf_vma ((FILE *) stream, value);
+}
- }
- }
-
- reloc_entry->addend = 0;
-
-
- /*
- Either we are relocating all the way, or we don't want to apply
- the relocation to the reloc entry (probably because there isn't
- any room in the output format to describe addends to relocs)
- */
- relocation >>= howto->rightshift;
-
- /* Shift everything up to where it's going to be used */
-
- relocation <<= howto->bitpos;
-
- /* Wait for the day when all have the mask in them */
-
- /* What we do:
- i instruction to be left alone
- o offset within instruction
- r relocation offset to apply
- S src mask
- D dst mask
- N ~dst mask
- A part 1
- B part 2
- R result
-
- Do this:
- i i i i i o o o o o from bfd_get<size>
- and S S S S S to get the size offset we want
- + r r r r r r r r r r to get the final value to place
- and D D D D D to chop to right size
- -----------------------
- A A A A A
- And this:
- ... i i i i i o o o o o from bfd_get<size>
- and N N N N N get instruction
- -----------------------
- ... B B B B B
-
- And then:
- B B B B B
- or A A A A A
- -----------------------
- R R R R R R R R R R put into bfd_put<size>
- */
-
-#define DOIT(x) \
- x = ( (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask))
-
- switch (howto->size)
+/*
+FUNCTION
+ bfd_alt_mach_code
+
+SYNOPSIS
+ bfd_boolean bfd_alt_mach_code (bfd *abfd, int alternative);
+
+DESCRIPTION
+
+ When more than one machine code number is available for the
+ same machine type, this function can be used to switch between
+ the preferred one (alternative == 0) and any others. Currently,
+ only ELF supports this feature, with up to two alternate
+ machine codes.
+*/
+
+bfd_boolean
+bfd_alt_mach_code (bfd *abfd, int alternative)
+{
+ if (bfd_get_flavour (abfd) == bfd_target_elf_flavour)
+ {
+ int code;
+
+ switch (alternative)
{
case 0:
- {
- char x = bfd_get_8(abfd, (char *)data + addr);
- DOIT(x);
- bfd_put_8(abfd,x, (unsigned char *) data + addr);
- }
+ code = get_elf_backend_data (abfd)->elf_machine_code;
break;
case 1:
- {
- short x = bfd_get_16(abfd, (bfd_byte *)data + addr);
- DOIT(x);
- bfd_put_16(abfd, x, (unsigned char *)data + addr);
- }
+ code = get_elf_backend_data (abfd)->elf_machine_alt1;
+ if (code == 0)
+ return FALSE;
break;
+
case 2:
- {
- long x = bfd_get_32(abfd, (bfd_byte *) data + addr);
- DOIT(x);
- bfd_put_32(abfd,x, (bfd_byte *)data + addr);
- }
- break;
- case 3:
- /* Do nothing */
+ code = get_elf_backend_data (abfd)->elf_machine_alt2;
+ if (code == 0)
+ return FALSE;
break;
+
default:
- return bfd_reloc_other;
+ return FALSE;
}
- return flag;
+ elf_elfheader (abfd)->e_machine = code;
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/*
+FUNCTION
+ bfd_emul_get_maxpagesize
+
+SYNOPSIS
+ bfd_vma bfd_emul_get_maxpagesize (const char *);
+
+DESCRIPTION
+ Returns the maximum page size, in bytes, as determined by
+ emulation.
+
+RETURNS
+ Returns the maximum page size in bytes for ELF, 0 otherwise.
+*/
+
+bfd_vma
+bfd_emul_get_maxpagesize (const char *emul)
+{
+ const bfd_target *target;
+
+ target = bfd_find_target (emul, NULL);
+ if (target != NULL
+ && target->flavour == bfd_target_elf_flavour)
+ return xvec_get_elf_backend_data (target)->maxpagesize;
+
+ return 0;
}
+static void
+bfd_elf_set_pagesize (const bfd_target *target, bfd_vma size,
+ int offset, const bfd_target *orig_target)
+{
+ if (target->flavour == bfd_target_elf_flavour)
+ {
+ const struct elf_backend_data *bed;
+
+ bed = xvec_get_elf_backend_data (target);
+ *((bfd_vma *) ((char *) bed + offset)) = size;
+ }
+
+ if (target->alternative_target
+ && target->alternative_target != orig_target)
+ bfd_elf_set_pagesize (target->alternative_target, size, offset,
+ orig_target);
+}
+
+/*
+FUNCTION
+ bfd_emul_set_maxpagesize
+
+SYNOPSIS
+ void bfd_emul_set_maxpagesize (const char *, bfd_vma);
+
+DESCRIPTION
+ For ELF, set the maximum page size for the emulation. It is
+ a no-op for other formats.
+
+*/
+
void
-bfd_assert(file, line)
-char *file;
-int line;
+bfd_emul_set_maxpagesize (const char *emul, bfd_vma size)
{
- printf("bfd assertion fail %s:%d\n",file,line);
+ const bfd_target *target;
+
+ target = bfd_find_target (emul, NULL);
+ if (target)
+ bfd_elf_set_pagesize (target, size,
+ offsetof (struct elf_backend_data,
+ maxpagesize), target);
}
+/*
+FUNCTION
+ bfd_emul_get_commonpagesize
+
+SYNOPSIS
+ bfd_vma bfd_emul_get_commonpagesize (const char *);
+
+DESCRIPTION
+ Returns the common page size, in bytes, as determined by
+ emulation.
-boolean
-bfd_set_start_address(abfd, vma)
-bfd *abfd;
-bfd_vma vma;
+RETURNS
+ Returns the common page size in bytes for ELF, 0 otherwise.
+*/
+
+bfd_vma
+bfd_emul_get_commonpagesize (const char *emul)
{
- abfd->start_address = vma;
- return true;
+ const bfd_target *target;
+
+ target = bfd_find_target (emul, NULL);
+ if (target != NULL
+ && target->flavour == bfd_target_elf_flavour)
+ return xvec_get_elf_backend_data (target)->commonpagesize;
+
+ return 0;
}
+/*
+FUNCTION
+ bfd_emul_set_commonpagesize
+
+SYNOPSIS
+ void bfd_emul_set_commonpagesize (const char *, bfd_vma);
+
+DESCRIPTION
+ For ELF, set the common page size for the emulation. It is
+ a no-op for other formats.
-bfd_vma bfd_log2(x)
-bfd_vma x;
+*/
+
+void
+bfd_emul_set_commonpagesize (const char *emul, bfd_vma size)
{
- bfd_vma result = 0;
- while ( (bfd_vma)(1<< result) < x)
- result++;
- return result;
+ const bfd_target *target;
+
+ target = bfd_find_target (emul, NULL);
+ if (target)
+ bfd_elf_set_pagesize (target, size,
+ offsetof (struct elf_backend_data,
+ commonpagesize), target);
}
-/* bfd_get_mtime: Return cached file modification time (e.g. as read
- from archive header for archive members, or from file system if we have
- been called before); else determine modify time, cache it, and
- return it. */
+/*
+FUNCTION
+ bfd_demangle
+
+SYNOPSIS
+ char *bfd_demangle (bfd *, const char *, int);
+
+DESCRIPTION
+ Wrapper around cplus_demangle. Strips leading underscores and
+ other such chars that would otherwise confuse the demangler.
+ If passed a g++ v3 ABI mangled name, returns a buffer allocated
+ with malloc holding the demangled name. Returns NULL otherwise
+ and on memory alloc failure.
+*/
-long
-bfd_get_mtime (abfd)
- bfd *abfd;
+char *
+bfd_demangle (bfd *abfd, const char *name, int options)
{
- FILE *fp;
- struct stat buf;
+ char *res, *alloc;
+ const char *pre, *suf;
+ size_t pre_len;
+ bfd_boolean skip_lead;
+
+ skip_lead = (abfd != NULL
+ && *name != '\0'
+ && bfd_get_symbol_leading_char (abfd) == *name);
+ if (skip_lead)
+ ++name;
+
+ /* This is a hack for better error reporting on XCOFF, PowerPC64-ELF
+ or the MS PE format. These formats have a number of leading '.'s
+ on at least some symbols, so we remove all dots to avoid
+ confusing the demangler. */
+ pre = name;
+ while (*name == '.' || *name == '$')
+ ++name;
+ pre_len = name - pre;
+
+ /* Strip off @plt and suchlike too. */
+ alloc = NULL;
+ suf = strchr (name, '@');
+ if (suf != NULL)
+ {
+ alloc = (char *) bfd_malloc (suf - name + 1);
+ if (alloc == NULL)
+ return NULL;
+ memcpy (alloc, name, suf - name);
+ alloc[suf - name] = '\0';
+ name = alloc;
+ }
- if (abfd->mtime_set)
- return abfd->mtime;
+ res = cplus_demangle (name, options);
- fp = bfd_cache_lookup (abfd);
- if (0 != fstat (fileno (fp), &buf))
- return 0;
+ if (alloc != NULL)
+ free (alloc);
+
+ if (res == NULL)
+ {
+ if (skip_lead)
+ {
+ size_t len = strlen (pre) + 1;
+ alloc = (char *) bfd_malloc (len);
+ if (alloc == NULL)
+ return NULL;
+ memcpy (alloc, pre, len);
+ return alloc;
+ }
+ return NULL;
+ }
+
+ /* Put back any prefix or suffix. */
+ if (pre_len != 0 || suf != NULL)
+ {
+ size_t len;
+ size_t suf_len;
+ char *final;
+
+ len = strlen (res);
+ if (suf == NULL)
+ suf = res + len;
+ suf_len = strlen (suf) + 1;
+ final = (char *) bfd_malloc (pre_len + len + suf_len);
+ if (final != NULL)
+ {
+ memcpy (final, pre, pre_len);
+ memcpy (final + pre_len, res, len);
+ memcpy (final + pre_len + len, suf, suf_len);
+ }
+ free (res);
+ res = final;
+ }
- abfd->mtime_set = true;
- abfd->mtime = buf.st_mtime;
- return abfd->mtime;
+ return res;
}
projects / platform / upstream / binutils.git / blobdiff