/* Generic BFD library interface and support routines.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-/* $Id$ */
-
-/*proto*
-@section @code{typedef bfd}
-
-A BFD is has type @code{bfd}; objects of this type are the cornerstone
-of any application using @code{libbfd}. References though the BFD and
-to data in the BFD give the entire BFD functionality.
-
-Here is the struct used to define the type @code{bfd}. This contains
-the major data about the file, and contains pointers to the rest of
-the data.
-
-*+++
-
-$struct _bfd
-${
- The filename the application opened the BFD with.
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+/*
+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
+.
+.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;
+.
+. {* To avoid dragging too many header files into every file that
+. includes `<<bfd.h>>', IOSTREAM has been declared as a "char
+. *", and MTIME as a "long". Their correct types, to which they
+. are cast when used, are "FILE *" and "time_t". The iostream
+. is the result of an fopen on the filename. However, if the
+. BFD_IN_MEMORY flag is set, then iostream is actually a pointer
+. to a bfd_in_memory struct. *}
+. PTR iostream;
+.
+. {* Is the file descriptor being cached? That is, can it be closed as
+. needed, and re-opened when accessed later? *}
+.
+. boolean cacheable;
+.
+. {* 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. *}
+.
+. boolean target_defaulted;
+.
+. {* 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: *}
+.
+. file_ptr where;
+.
+. {* and here: (``once'' means at least once) *}
+.
+. boolean opened_once;
+.
+. {* Set if we have a locally maintained mtime value, rather than
+. getting it from the file each time: *}
+.
+. boolean mtime_set;
+.
+. {* File modified time, if mtime_set is true: *}
+.
+. long mtime;
+.
+. {* Reserved for an unimplemented file locking extension.*}
+.
+. int ifd;
+.
+. {* The format which belongs to the BFD. (object, core, etc.) *}
+.
+. bfd_format format;
+.
+. {* The direction the BFD was opened with*}
+.
+. enum bfd_direction {no_direction = 0,
+. read_direction = 1,
+. write_direction = 2,
+. both_direction = 3} direction;
+.
+. {* Format_specific flags*}
+.
+. flagword flags;
+.
+. {* 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. *}
+.
+. file_ptr origin;
+.
+. {* Remember when output has begun, to stop strange things
+. from happening. *}
+. boolean output_has_begun;
+.
+. {* Pointer to linked list of sections*}
+. struct sec *sections;
+.
+. {* The number of sections *}
+. unsigned int section_count;
+.
+. {* 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) *}
+. struct symbol_cache_entry **outsymbols;
+.
+. {* Pointer to structure which contains architecture information*}
+. const struct bfd_arch_info *arch_info;
+.
+. {* Stuff only useful for archives:*}
+. PTR arelt_data;
+. struct _bfd *my_archive; {* The containing archive BFD. *}
+. struct _bfd *next; {* The next BFD in the archive. *}
+. struct _bfd *archive_head; {* The first BFD in the archive. *}
+. boolean has_armap;
+.
+. {* 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;
+.
+. {* 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 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 sun_core_struct *sun_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;
+. 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;
+.};
+.
+*/
-$ CONST char *filename;
+#include "bfd.h"
+#include "sysdep.h"
-A pointer to the target jump table.
+#ifdef ANSI_PROTOTYPES
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
-$ struct bfd_target *xvec;
+#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"
+
+#include <ctype.h>
+\f
+/* 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 */
-To avoid dragging too many header files into every file that
-includes @file{bfd.h}, IOSTREAM has been declared as a "char *", and MTIME
-as a "long". Their correct types, to which they are cast when used,
-are "FILE *" and "time_t".
+\f
+/*
+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_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_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_invalid_error_code
+.} bfd_error_type;
+.
+*/
-The iostream is the result of an fopen on the filename.
+#undef strerror
+extern char *strerror();
-$ char *iostream;
+static bfd_error_type bfd_error = bfd_error_no_error;
-Is the file being cached @xref{File Caching}.
+CONST char *CONST bfd_errmsgs[] = {
+ "No error",
+ "System call error",
+ "Invalid bfd target",
+ "File in wrong format",
+ "Invalid operation",
+ "Memory exhausted",
+ "No symbols",
+ "Archive has no index; run ranlib to add one",
+ "No more archived files",
+ "Malformed archive",
+ "File format not recognized",
+ "File format is ambiguous",
+ "Section has no contents",
+ "Nonrepresentable section on output",
+ "Symbol needs debug section which does not exist",
+ "Bad value",
+ "File truncated",
+ "File too big",
+ "#<Invalid error code>"
+ };
-$ boolean cacheable;
+/*
+FUNCTION
+ bfd_get_error
-Marks whether there was a default target specified when the BFD was
-opened. This is used to select what matching algorithm to use to chose
-the back end.
+SYNOPSIS
+ bfd_error_type bfd_get_error (void);
-$ boolean target_defaulted;
+DESCRIPTION
+ Return the current BFD error condition.
+*/
-The caching routines use these to maintain a least-recently-used list of
-BFDs (@pxref{File Caching}).
+bfd_error_type
+bfd_get_error ()
+{
+ return bfd_error;
+}
-$ struct _bfd *lru_prev, *lru_next;
+/*
+FUNCTION
+ bfd_set_error
-When a file is closed by the caching routines, BFD retains state
-information on the file here:
+SYNOPSIS
+ void bfd_set_error (bfd_error_type error_tag);
-$ file_ptr where;
+DESCRIPTION
+ Set the BFD error condition to be @var{error_tag}.
+*/
-and here:
+void
+bfd_set_error (error_tag)
+ bfd_error_type error_tag;
+{
+ bfd_error = error_tag;
+}
-$ boolean opened_once;
+/*
+FUNCTION
+ bfd_errmsg
-$ boolean mtime_set;
-File modified time
+SYNOPSIS
+ CONST char *bfd_errmsg (bfd_error_type error_tag);
-$ long mtime;
+DESCRIPTION
+ Return a string describing the error @var{error_tag}, or
+ the system error if @var{error_tag} is <<bfd_error_system_call>>.
+*/
-Reserved for an unimplemented file locking extension.
+CONST char *
+bfd_errmsg (error_tag)
+ bfd_error_type error_tag;
+{
+#ifndef errno
+ extern int errno;
+#endif
+ if (error_tag == bfd_error_system_call)
+ return strerror (errno);
-$int ifd;
+ if ((((int)error_tag <(int) bfd_error_no_error) ||
+ ((int)error_tag > (int)bfd_error_invalid_error_code)))
+ error_tag = bfd_error_invalid_error_code;/* sanity check */
-The format which belongs to the BFD.
+ return bfd_errmsgs [(int)error_tag];
+}
-$ bfd_format format;
+/*
+FUNCTION
+ bfd_perror
-The direction the BFD was opened with
+SYNOPSIS
+ void bfd_perror (CONST char *message);
-$ enum bfd_direction {no_direction = 0,
-$ read_direction = 1,
-$ write_direction = 2,
-$ both_direction = 3} direction;
+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.
+*/
-Format_specific flags
+void
+bfd_perror (message)
+ CONST char *message;
+{
+ if (bfd_get_error () == bfd_error_system_call)
+ perror((char *)message); /* must be system error then... */
+ else {
+ 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 ()));
+ }
+}
-$ flagword flags;
+/*
+SUBSECTION
+ BFD error handler
-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.
+ Some BFD functions want to print messages describing the
+ problem. They call a BFD error handler function. This
+ function may be overriden by the program.
-$ file_ptr origin;
+ The BFD error handler acts like printf.
-Remember when output has begun, to stop strange things happening.
+CODE_FRAGMENT
+.
+.typedef void (*bfd_error_handler_type) PARAMS ((const char *, ...));
+.
+*/
-$ boolean output_has_begun;
+/* The program name used when printing BFD error messages. */
-Pointer to linked list of sections
+static const char *_bfd_error_program_name;
-$ struct sec *sections;
+/* This is the default routine to handle BFD error messages. */
-The number of sections
+#ifdef ANSI_PROTOTYPES
-$ unsigned int section_count;
+static void _bfd_default_error_handler PARAMS ((const char *s, ...));
-Stuff only useful for object files:
-The start address.
+static void
+_bfd_default_error_handler (const char *s, ...)
+{
+ va_list p;
-$ bfd_vma start_address;
-Used for input and output
+ if (_bfd_error_program_name != NULL)
+ fprintf (stderr, "%s: ", _bfd_error_program_name);
-$ unsigned int symcount;
-Symbol table for output BFD
+ va_start (p, s);
-$ struct symbol_cache_entry **outsymbols;
+ vfprintf (stderr, s, p);
-Architecture of object machine, eg m68k
+ va_end (p);
-$ enum bfd_architecture obj_arch;
+ fprintf (stderr, "\n");
+}
-Particular machine within arch, e.g. 68010
+#else /* ! defined (ANSI_PROTOTYPES) */
-$ unsigned long obj_machine;
+static void _bfd_default_error_handler ();
-Stuff only useful for archives:
+static void
+_bfd_default_error_handler (va_alist)
+ va_dcl
+{
+ va_list p;
+ const char *s;
-$ PTR arelt_data;
-$ struct _bfd *my_archive;
-$ struct _bfd *next;
-$ struct _bfd *archive_head;
-$ boolean has_armap;
+ if (_bfd_error_program_name != NULL)
+ fprintf (stderr, "%s: ", _bfd_error_program_name);
-Used by the back end to hold private data.
+ va_start (p);
-$ PTR tdata;
+ s = va_arg (p, const char *);
+ vfprintf (stderr, s, p);
-Used by the application to hold private data
+ va_end (p);
-$ PTR usrdata;
+ fprintf (stderr, "\n");
+}
-Where all the allocated stuff under this BFD goes (@pxref{Memory Usage}).
+#endif /* ! defined (ANSI_PROTOTYPES) */
-$ struct obstack memory;
-$};
+/* 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. */
-*---
+bfd_error_handler_type _bfd_error_handler = _bfd_default_error_handler;
-*/
-#include <sysdep.h>
-#include "bfd.h"
-#include "libbfd.h"
+/*
+FUNCTION
+ bfd_set_error_handler
+SYNOPSIS
+ bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type);
-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.
+DESCRIPTION
+ Set the BFD error handler function. Returns the previous
+ function.
*/
-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 !defined(ANSI_LIBRARIES) && !defined(__STDC__) || HOST_SYS==SUN4_SYS
-char *
-strerror (code)
- int code;
+bfd_error_handler_type
+bfd_set_error_handler (pnew)
+ bfd_error_handler_type pnew;
{
- extern int sys_nerr;
- extern char *sys_errlist[];
+ bfd_error_handler_type pold;
- return (((code < 0) || (code >= sys_nerr)) ? "(unknown error)" :
- sys_errlist [code]);
+ pold = _bfd_error_handler;
+ _bfd_error_handler = pnew;
+ return pold;
}
-#endif /* not ANSI_LIBRARIES */
+/*
+FUNCTION
+ bfd_set_error_program_name
-char *
-bfd_errmsg (error_tag)
- bfd_ec error_tag;
-{
-#ifndef errno
- extern int errno;
-#endif
- if (error_tag == system_call_error)
- return strerror (errno);
-
- if ((((int)error_tag <(int) no_error) ||
- ((int)error_tag > (int)invalid_error_code)))
- error_tag = invalid_error_code;/* sanity check */
-
- return bfd_errmsgs [(int)error_tag];
-}
+SYNOPSIS
+ void bfd_set_error_program_name (const char *);
+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_default_error_trap(error_tag)
-bfd_ec error_tag;
+void
+bfd_set_error_program_name (name)
+ const char *name;
{
- printf("bfd assert fail (%s)\n", bfd_errmsg(error_tag));
+ _bfd_error_program_name = name;
}
+\f
+/*
+SECTION
+ Symbols
+*/
-void (*bfd_error_trap)() = bfd_default_error_trap;
-void (*bfd_error_nonrepresentabltrap)() = bfd_default_error_trap;
+/*
+FUNCTION
+ bfd_get_reloc_upper_bound
-void
-DEFUN(bfd_perror,(message),
- CONST char *message)
-{
- 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));
- }
-}
+SYNOPSIS
+ long bfd_get_reloc_upper_bound(bfd *abfd, asection *sect);
- \f
-/** Symbols */
+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.
+
+*/
-/* returns the number of octets of storage required */
-unsigned int
-get_reloc_upper_bound (abfd, asect)
+long
+bfd_get_reloc_upper_bound (abfd, asect)
bfd *abfd;
sec_ptr asect;
{
if (abfd->format != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
}
return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect));
}
-unsigned int
+/*
+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 (abfd, asect, location, symbols)
bfd *abfd;
sec_ptr asect;
asymbol **symbols;
{
if (abfd->format != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
}
+ return BFD_SEND (abfd, _bfd_canonicalize_reloc,
+ (abfd, asect, location, symbols));
+}
+
+/*
+FUNCTION
+ bfd_set_reloc
+
+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.
- return BFD_SEND (abfd, _bfd_canonicalize_reloc, (abfd, asect, location, symbols));
+*/
+/*ARGSUSED*/
+void
+bfd_set_reloc (ignore_abfd, asect, location, count)
+ bfd *ignore_abfd;
+ sec_ptr asect;
+ arelent **location;
+ unsigned int count;
+{
+ asect->orelocation = location;
+ asect->reloc_count = count;
}
+/*
+FUNCTION
+ bfd_set_file_flags
+
+SYNOPSIS
+ 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.
+
+*/
boolean
bfd_set_file_flags (abfd, flags)
flagword flags;
{
if (abfd->format != bfd_object) {
- bfd_error = wrong_format;
+ bfd_set_error (bfd_error_wrong_format);
return false;
}
if (bfd_read_p (abfd)) {
- bfd_error = invalid_operation;
+ bfd_set_error (bfd_error_invalid_operation);
return false;
}
+ bfd_get_file_flags (abfd) = flags;
if ((flags & bfd_applicable_file_flags (abfd)) != flags) {
- bfd_error = invalid_operation;
+ bfd_set_error (bfd_error_invalid_operation);
return false;
}
- bfd_get_file_flags (abfd) = flags;
return true;
}
-
void
-bfd_set_reloc (ignore_abfd, asect, location, count)
- bfd *ignore_abfd;
- sec_ptr asect;
- arelent **location;
- unsigned int count;
+bfd_assert (file, line)
+ const char *file;
+ int line;
{
- asect->orelocation = location;
- asect->reloc_count = count;
+ (*_bfd_error_handler) ("bfd assertion fail %s:%d", file, line);
}
-void
-bfd_assert(file, line)
-char *file;
-int line;
-{
- printf("bfd assertion fail %s:%d\n",file,line);
-}
+/*
+FUNCTION
+ bfd_set_start_address
-/*proto* bfd_set_start_address
+SYNOPSIS
+ boolean bfd_set_start_address(bfd *abfd, bfd_vma vma);
-Marks the entry point of an output BFD. Returns @code{true} on
-success, @code{false} otherwise.
+DESCRIPTION
+ Make @var{vma} the entry point of output BFD @var{abfd}.
-*; PROTO(boolean, bfd_set_start_address,(bfd *, bfd_vma));
+RETURNS
+ Returns <<true>> on success, <<false>> otherwise.
*/
boolean
}
-/*proto* bfd_get_mtime
+/*
+FUNCTION
+ 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.
+SYNOPSIS
+ long bfd_get_mtime(bfd *abfd);
-*; PROTO(long, bfd_get_mtime, (bfd *));
+DESCRIPTION
+ Return the file modification time (as read from the file system, or
+ from the archive header for archive members).
*/
if (0 != fstat (fileno (fp), &buf))
return 0;
- abfd->mtime_set = true;
- abfd->mtime = buf.st_mtime;
- return abfd->mtime;
+ abfd->mtime = buf.st_mtime; /* Save value in case anyone wants it */
+ return buf.st_mtime;
+}
+
+/*
+FUNCTION
+ bfd_get_size
+
+SYNOPSIS
+ long bfd_get_size(bfd *abfd);
+
+DESCRIPTION
+ Return the file size (as read from file system) for the file
+ associated with BFD @var{abfd}.
+
+ The initial motivation for, and use of, this routine is not
+ so we can get the exact size of the object the BFD applies to, since
+ that might not be generally possible (archive members for example).
+ It would be ideal if someone could eventually modify
+ it so that such results were guaranteed.
+
+ Instead, we want to ask questions like "is this NNN byte sized
+ object I'm about to try read from file offset YYY reasonable?"
+ As as example of where we might do this, some object formats
+ use string tables for which the first <<sizeof(long)>> bytes of the
+ table contain the size of the table itself, including the size bytes.
+ If an application tries to read what it thinks is one of these
+ string tables, without some way to validate the size, and for
+ some reason the size is wrong (byte swapping error, wrong location
+ for the string table, etc.), the only clue is likely to be a read
+ error when it tries to read the table, or a "virtual memory
+ exhausted" error when it tries to allocate 15 bazillon bytes
+ of space for the 15 bazillon byte table it is about to read.
+ This function at least allows us to answer the quesion, "is the
+ size reasonable?".
+*/
+
+long
+bfd_get_size (abfd)
+ bfd *abfd;
+{
+ FILE *fp;
+ struct stat buf;
+
+ if ((abfd->flags & BFD_IN_MEMORY) != 0)
+ return ((struct bfd_in_memory *) abfd->iostream)->size;
+
+ fp = bfd_cache_lookup (abfd);
+ if (0 != fstat (fileno (fp), &buf))
+ return 0;
+
+ return buf.st_size;
+}
+
+/*
+FUNCTION
+ bfd_get_gp_size
+
+SYNOPSIS
+ 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.
+*/
+
+int
+bfd_get_gp_size (abfd)
+ bfd *abfd;
+{
+ 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;
+}
+
+/*
+FUNCTION
+ bfd_set_gp_size
+
+SYNOPSIS
+ void bfd_set_gp_size(bfd *abfd, 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_set_gp_size (abfd, i)
+ bfd *abfd;
+ 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;
+}
+
+/* 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 (abfd)
+ bfd *abfd;
+{
+ if (abfd->format == bfd_object)
+ {
+ 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;
}
-/*proto* stuff
+/* Set the GP value. */
+
+void
+_bfd_set_gp_value (abfd, v)
+ bfd *abfd;
+ bfd_vma v;
+{
+ 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;
+}
-*+
+/*
+FUNCTION
+ bfd_scan_vma
-#define bfd_sizeof_headers(abfd, reloc) \
- BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
+SYNOPSIS
+ bfd_vma bfd_scan_vma(CONST char *string, CONST char **end, int base);
-#define bfd_find_nearest_line(abfd, section, symbols, offset, filename_ptr, func, line_ptr) \
- BFD_SEND (abfd, _bfd_find_nearest_line, (abfd, section, symbols, offset, filename_ptr, func, line_ptr))
+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.
-#define bfd_debug_info_start(abfd) \
- BFD_SEND (abfd, _bfd_debug_info_start, (abfd))
+ Overflow is not detected.
+*/
-#define bfd_debug_info_end(abfd) \
- BFD_SEND (abfd, _bfd_debug_info_end, (abfd))
+bfd_vma
+bfd_scan_vma (string, end, base)
+ CONST char *string;
+ CONST char **end;
+ int base;
+{
+ bfd_vma value;
+ int digit;
+
+ /* Let the host do it if possible. */
+ if (sizeof(bfd_vma) <= sizeof(unsigned long))
+ return (bfd_vma) strtoul (string, (char **) end, base);
+
+ /* A negative base makes no sense, and we only need to go as high as hex. */
+ if ((base < 0) || (base > 16))
+ return (bfd_vma) 0;
+
+ if (base == 0)
+ {
+ if (string[0] == '0')
+ {
+ if ((string[1] == 'x') || (string[1] == 'X'))
+ base = 16;
+ /* XXX should we also allow "0b" or "0B" to set base to 2? */
+ else
+ base = 8;
+ }
+ else
+ base = 10;
+ }
+ if ((base == 16) &&
+ (string[0] == '0') && ((string[1] == 'x') || (string[1] == 'X')))
+ string += 2;
+ /* XXX should we also skip over "0b" or "0B" if base is 2? */
+
+/* Speed could be improved with a table like hex_value[] in gas. */
+#define HEX_VALUE(c) \
+ (isxdigit(c) ? \
+ (isdigit(c) ? \
+ (c - '0') : \
+ (10 + c - (islower(c) ? 'a' : 'A'))) : \
+ 42)
+
+ for (value = 0; (digit = HEX_VALUE(*string)) < base; string++)
+ {
+ value = value * base + digit;
+ }
+
+ if (end)
+ *end = string;
+
+ return value;
+}
-#define bfd_debug_info_accumulate(abfd, section) \
- BFD_SEND (abfd, _bfd_debug_info_accumulate, (abfd, section))
+/*
+FUNCTION
+ bfd_copy_private_bfd_data
-#define bfd_stat_arch_elt(abfd, stat) \
- BFD_SEND (abfd, _bfd_stat_arch_elt,(abfd, stat))
+SYNOPSIS
+ boolean bfd_copy_private_bfd_data(bfd *ibfd, bfd *obfd);
-#define bfd_coff_swap_aux_in(a,e,t,c,i) \
- BFD_SEND (a, _bfd_coff_swap_aux_in, (a,e,t,c,i))
+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:
-#define bfd_coff_swap_sym_in(a,e,i) \
- BFD_SEND (a, _bfd_coff_swap_sym_in, (a,e,i))
+ o <<bfd_error_no_memory>> -
+ Not enough memory exists to create private data for @var{obfd}.
-#define bfd_coff_swap_lineno_in(a,e,i) \
- BFD_SEND ( a, _bfd_coff_swap_lineno_in, (a,e,i))
-*-
+.#define bfd_copy_private_bfd_data(ibfd, obfd) \
+. BFD_SEND (ibfd, _bfd_copy_private_bfd_data, \
+. (ibfd, obfd))
*/
+/*
+FUNCTION
+ bfd_merge_private_bfd_data
+SYNOPSIS
+ 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 (ibfd, _bfd_merge_private_bfd_data, \
+. (ibfd, obfd))
+
+*/
+/*
+FUNCTION
+ bfd_set_private_flags
+SYNOPSIS
+ 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
+ stuff
+
+DESCRIPTION
+ Stuff which should be documented:
+
+.#define bfd_sizeof_headers(abfd, reloc) \
+. BFD_SEND (abfd, _bfd_sizeof_headers, (abfd, reloc))
+.
+.#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))
+.
+. {* Do these three do anything useful at all, for any back end? *}
+.#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_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_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_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
+. PARAMS ((bfd *, struct bfd_link_info *,
+. struct bfd_link_order *, bfd_byte *,
+. boolean, asymbol **));
+.
+
+*/
+
+bfd_byte *
+bfd_get_relocated_section_contents (abfd, link_info, link_order, data,
+ relocateable, symbols)
+ bfd *abfd;
+ struct bfd_link_info *link_info;
+ struct bfd_link_order *link_order;
+ bfd_byte *data;
+ boolean relocateable;
+ asymbol **symbols;
+{
+ bfd *abfd2;
+ bfd_byte *(*fn) PARAMS ((bfd *, struct bfd_link_info *,
+ struct bfd_link_order *, bfd_byte *, boolean,
+ asymbol **));
+
+ if (link_order->type == bfd_indirect_link_order)
+ {
+ abfd2 = link_order->u.indirect.section->owner;
+ if (abfd2 == 0)
+ abfd2 = abfd;
+ }
+ else
+ abfd2 = abfd;
+ fn = abfd2->xvec->_bfd_get_relocated_section_contents;
+
+ return (*fn) (abfd, link_info, link_order, data, relocateable, symbols);
+}
+
+/* Record information about an ELF program header. */
+
+boolean
+bfd_record_phdr (abfd, type, flags_valid, flags, at_valid, at,
+ includes_filehdr, includes_phdrs, count, secs)
+ bfd *abfd;
+ unsigned long type;
+ boolean flags_valid;
+ flagword flags;
+ boolean at_valid;
+ bfd_vma at;
+ boolean includes_filehdr;
+ boolean includes_phdrs;
+ unsigned int count;
+ asection **secs;
+{
+ struct elf_segment_map *m, **pm;
+
+ if (bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ return true;
+
+ m = ((struct elf_segment_map *)
+ bfd_alloc (abfd,
+ (sizeof (struct elf_segment_map)
+ + (count - 1) * sizeof (asection *))));
+ if (m == NULL)
+ return false;
+
+ m->next = NULL;
+ 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_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next)
+ ;
+ *pm = m;
+
+ return true;
+}