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Diffstat (limited to 'contrib/binutils/bfd/bfd.c')
| -rw-r--r-- | contrib/binutils/bfd/bfd.c | 1787 |
1 files changed, 1787 insertions, 0 deletions
diff --git a/contrib/binutils/bfd/bfd.c b/contrib/binutils/bfd/bfd.c new file mode 100644 index 000000000000..510df0ab27f5 --- /dev/null +++ b/contrib/binutils/bfd/bfd.c @@ -0,0 +1,1787 @@ +/* Generic BFD library interface and support routines. + Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, + 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 + Free Software Foundation, Inc. + Written by Cygnus Support. + + This file is part of BFD, the Binary File Descriptor library. + + 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 2 of the License, 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. + + 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. */ + +/* +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 +.{ +. {* A unique identifier of the BFD *} +. unsigned int id; +. +. {* 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; +. +. {* Is the file descriptor being cached? That is, can it be closed as +. needed, and re-opened when accessed later? *} +. bfd_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. *} +. bfd_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... *} +. ufile_ptr where; +. +. {* ... and here: (``once'' means at least once). *} +. bfd_boolean opened_once; +. +. {* Set if we have a locally maintained mtime value, rather than +. getting it from the file each time. *} +. bfd_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 with which the BFD was opened. *} +. 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. *} +. ufile_ptr origin; +. +. {* Remember when output has begun, to stop strange things +. from happening. *} +. bfd_boolean output_has_begun; +. +. {* 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; +. +. {* 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 bfd_symbol **outsymbols; +. +. {* Used for slurped dynamic symbol tables. *} +. unsigned int dynsymcount; +. +. {* Pointer to structure which contains architecture information. *} +. const struct bfd_arch_info *arch_info; +. +. {* Flag set if symbols from this BFD should not be exported. *} +. bfd_boolean no_export; +. +. {* 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. *} +. bfd_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 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 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; +.}; +. +*/ + +#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 + + +/* 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 */ + +/* +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_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[] = +{ + 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_("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>") +}; + +/* +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; +} + +/* +FUNCTION + bfd_set_error + +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 = 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 == bfd_error_on_input) + { + char *buf; + const char *msg = bfd_errmsg (input_error); + + if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg) + != -1) + return buf; + + /* 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_perror (const char *message) +{ + 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 ())); +} + +/* +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 +_bfd_default_error_handler (const char *fmt, ...) +{ + va_list ap; + char *bufp; + const char *new_fmt, *p; + size_t avail = 1000; + char buf[1000]; + + 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; + } + + 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); + + putc ('\n', stderr); +} + +/* 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; + +/* +FUNCTION + bfd_set_error_handler + +SYNOPSIS + bfd_error_handler_type bfd_set_error_handler (bfd_error_handler_type); + +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; + + pold = _bfd_error_handler; + _bfd_error_handler = pnew; + return pold; +} + +/* +FUNCTION + bfd_set_error_program_name + +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_set_error_program_name (const char *name) +{ + _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. +*/ + +bfd_error_handler_type +bfd_get_error_handler (void) +{ + return _bfd_error_handler; +} + +/* +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) +{ + if (abfd->format != bfd_object) + { + bfd_set_error (bfd_error_invalid_operation); + return -1; + } + + return BFD_SEND (abfd, _get_reloc_upper_bound, (abfd, asect)); +} + +/* +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 (abfd->format != bfd_object) + { + 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. + +*/ + +void +bfd_set_reloc (bfd *ignore_abfd ATTRIBUTE_UNUSED, + sec_ptr asect, + arelent **location, + unsigned int count) +{ + asect->orelocation = location; + asect->reloc_count = 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 (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; + } + + bfd_get_file_flags (abfd) = flags; + if ((flags & bfd_applicable_file_flags (abfd)) != flags) + { + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } + + return TRUE; +} + +void +bfd_assert (const char *file, int line) +{ + (*_bfd_error_handler) (_("BFD %s assertion fail %s:%d"), + BFD_VERSION_STRING, file, line); +} + +/* A more or less friendly abort message. In libbfd.h abort is + defined to call this function. */ + +void +_bfd_abort (const char *file, int line, const char *fn) +{ + 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 architecture address size, in bits, as determined + by the object file's format. For ELF, this information is + included in the header. + +RETURNS + Returns the arch size in bits if known, <<-1>> otherwise. +*/ + +int +bfd_get_arch_size (bfd *abfd) +{ + if (abfd->xvec->flavour == bfd_target_elf_flavour) + return get_elf_backend_data (abfd)->s->arch_size; + + return -1; +} + +/* +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) +{ + 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-arm-wince-little") == 0 + || strcmp (name, "pei-arm-wince-little") == 0) + return 1; + + bfd_set_error (bfd_error_wrong_format); + return -1; +} + +/* +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_boolean +bfd_set_start_address (bfd *abfd, bfd_vma vma) +{ + abfd->start_address = vma; + return TRUE; +} + +/* +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 +bfd_get_gp_size (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, 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_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; +} + +/* 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_gp_value (bfd *abfd, bfd_vma v) +{ + if (! abfd) + BFD_FAIL (); + 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 + +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') + { + if ((string[1] == 'x') || (string[1] == 'X')) + base = 16; + else + base = 8; + } + } + + if ((base < 2) || (base > 36)) + base = 10; + + if (base == 16 + && string[0] == '0' + && (string[1] == 'x' || string[1] == 'X') + && ISXDIGIT (string[2])) + { + string += 2; + } + + 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; + } + + 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, sec, syms, off, file, func, line)) +. +.#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_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_hash_table_free(abfd, hash) \ +. BFD_SEND (abfd, _bfd_link_hash_table_free, (hash)) +. +.#define bfd_link_add_symbols(abfd, info) \ +. BFD_SEND (abfd, _bfd_link_add_symbols, (abfd, info)) +. +.#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; + + fn = abfd2->xvec->_bfd_get_relocated_section_contents; + + 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 = 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_tdata (abfd)->segment_map; *pm != NULL; pm = &(*pm)->next) + ; + *pm = m; + + return TRUE; +} + +void +bfd_sprintf_vma (bfd *abfd, char *buf, bfd_vma value) +{ + if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) + get_elf_backend_data (abfd)->elf_backend_sprintf_vma (abfd, buf, value); + else + sprintf_vma (buf, value); +} + +void +bfd_fprintf_vma (bfd *abfd, void *stream, bfd_vma value) +{ + if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) + get_elf_backend_data (abfd)->elf_backend_fprintf_vma (abfd, stream, value); +#ifdef BFD64 + /* fprintf_vma() on a 64-bit enabled host will always print a 64-bit + value, but really we want to display the address in the target's + address size. Since we do not have a field in the bfd structure + to tell us this, we take a guess, based on the target's name. */ + else if (strstr (bfd_get_target (abfd), "64") == NULL + && strcmp (bfd_get_target (abfd), "mmo") != 0) + fprintf ((FILE *) stream, "%08lx", (unsigned long) (value & 0xffffffff)); +#endif + else + fprintf_vma ((FILE *) stream, value); +} + +/* +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: + code = get_elf_backend_data (abfd)->elf_machine_code; + break; + + case 1: + code = get_elf_backend_data (abfd)->elf_machine_alt1; + if (code == 0) + return FALSE; + break; + + case 2: + code = get_elf_backend_data (abfd)->elf_machine_alt2; + if (code == 0) + return FALSE; + break; + + default: + return FALSE; + } + + elf_elfheader (abfd)->e_machine = code; + + return TRUE; + } + + return FALSE; +} + +/* +CODE_FRAGMENT + +.struct bfd_preserve +.{ +. void *marker; +. void *tdata; +. flagword flags; +. const struct bfd_arch_info *arch_info; +. struct bfd_section *sections; +. struct bfd_section *section_last; +. unsigned int section_count; +. struct bfd_hash_table section_htab; +.}; +. +*/ + +/* +FUNCTION + bfd_preserve_save + +SYNOPSIS + bfd_boolean bfd_preserve_save (bfd *, struct bfd_preserve *); + +DESCRIPTION + When testing an object for compatibility with a particular + target back-end, the back-end object_p function needs to set + up certain fields in the bfd on successfully recognizing the + object. This typically happens in a piecemeal fashion, with + failures possible at many points. On failure, the bfd is + supposed to be restored to its initial state, which is + virtually impossible. However, restoring a subset of the bfd + state works in practice. This function stores the subset and + reinitializes the bfd. + +*/ + +bfd_boolean +bfd_preserve_save (bfd *abfd, struct bfd_preserve *preserve) +{ + preserve->tdata = abfd->tdata.any; + preserve->arch_info = abfd->arch_info; + preserve->flags = abfd->flags; + preserve->sections = abfd->sections; + preserve->section_last = abfd->section_last; + preserve->section_count = abfd->section_count; + preserve->section_htab = abfd->section_htab; + + if (! bfd_hash_table_init (&abfd->section_htab, bfd_section_hash_newfunc, + sizeof (struct section_hash_entry))) + return FALSE; + + abfd->tdata.any = NULL; + abfd->arch_info = &bfd_default_arch_struct; + abfd->flags &= BFD_IN_MEMORY; + abfd->sections = NULL; + abfd->section_last = NULL; + abfd->section_count = 0; + + return TRUE; +} + +/* +FUNCTION + bfd_preserve_restore + +SYNOPSIS + void bfd_preserve_restore (bfd *, struct bfd_preserve *); + +DESCRIPTION + This function restores bfd state saved by bfd_preserve_save. + If MARKER is non-NULL in struct bfd_preserve then that block + and all subsequently bfd_alloc'd memory is freed. + +*/ + +void +bfd_preserve_restore (bfd *abfd, struct bfd_preserve *preserve) +{ + bfd_hash_table_free (&abfd->section_htab); + + abfd->tdata.any = preserve->tdata; + abfd->arch_info = preserve->arch_info; + abfd->flags = preserve->flags; + abfd->section_htab = preserve->section_htab; + abfd->sections = preserve->sections; + abfd->section_last = preserve->section_last; + abfd->section_count = preserve->section_count; + + /* bfd_release frees all memory more recently bfd_alloc'd than + its arg, as well as its arg. */ + if (preserve->marker != NULL) + { + bfd_release (abfd, preserve->marker); + preserve->marker = NULL; + } +} + +/* +FUNCTION + bfd_preserve_finish + +SYNOPSIS + void bfd_preserve_finish (bfd *, struct bfd_preserve *); + +DESCRIPTION + This function should be called when the bfd state saved by + bfd_preserve_save is no longer needed. ie. when the back-end + object_p function returns with success. + +*/ + +void +bfd_preserve_finish (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_preserve *preserve) +{ + /* It would be nice to be able to free more memory here, eg. old + tdata, but that's not possible since these blocks are sitting + inside bfd_alloc'd memory. The section hash is on a separate + objalloc. */ + bfd_hash_table_free (&preserve->section_htab); +} + +/* +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, abort + 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; + + abort (); + 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_emul_set_maxpagesize (const char *emul, bfd_vma size) +{ + 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. + +RETURNS + Returns the common page size in bytes for ELF, abort otherwise. +*/ + +bfd_vma +bfd_emul_get_commonpagesize (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)->commonpagesize; + + abort (); + 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. + +*/ + +void +bfd_emul_set_commonpagesize (const char *emul, bfd_vma size) +{ + 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); +} + +/* +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. +*/ + +char * +bfd_demangle (bfd *abfd, const char *name, int options) +{ + char *res, *alloc; + const char *pre, *suf; + size_t pre_len; + + if (abfd != NULL + && *name != '\0' + && bfd_get_symbol_leading_char (abfd) == *name) + ++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 = bfd_malloc (suf - name + 1); + if (alloc == NULL) + return NULL; + memcpy (alloc, name, suf - name); + alloc[suf - name] = '\0'; + name = alloc; + } + + res = cplus_demangle (name, options); + + if (alloc != NULL) + free (alloc); + + if (res == NULL) + 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 = 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; + } + + return res; +} |