-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+/* Assorted BFD support routines, only used internally.
+ Copyright (C) 1990-2020 Free Software Foundation, Inc.
+ Written by Cygnus Support.
-This file is part of BFD, the Binary File Diddler.
+ This file is part of BFD, the Binary File Descriptor library.
-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 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 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.
+ 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 BFD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ 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. */
-/* $Id$ */
-
-/*** libbfd.c -- random bfd support routines used internally only. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
+#ifndef HAVE_GETPAGESIZE
+#define getpagesize() 2048
+#endif
+
+/*
+SECTION
+ Implementation details
-\f
-/** Dummies for targets that don't want or need to implement
- certain operations */
+SUBSECTION
+ Internal functions
+
+DESCRIPTION
+ These routines are used within BFD.
+ They are not intended for export, but are documented here for
+ completeness.
+*/
+
+bfd_boolean
+_bfd_bool_bfd_false (bfd *abfd ATTRIBUTE_UNUSED)
+{
+ return FALSE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_asymbol_false (bfd *abfd ATTRIBUTE_UNUSED,
+ asymbol *sym ATTRIBUTE_UNUSED)
+{
+ return FALSE;
+}
+
+/* A routine which is used in target vectors for unsupported
+ operations. */
+
+bfd_boolean
+_bfd_bool_bfd_false_error (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_link_false_error (bfd *abfd,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+ return _bfd_bool_bfd_false_error (abfd);
+}
+
+/* A routine which is used in target vectors for supported operations
+ which do not actually do anything. */
+
+bfd_boolean
+_bfd_bool_bfd_true (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_link_true (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_bool_bfd_bfd_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
-boolean
-_bfd_dummy_new_section_hook (ignore, ignore_newsect)
- bfd *ignore;
- asection *ignore_newsect;
+bfd_boolean
+_bfd_bool_bfd_uint_true (bfd *abfd ATTRIBUTE_UNUSED,
+ unsigned int flags ATTRIBUTE_UNUSED)
{
- return true;
+ return TRUE;
}
-boolean
-bfd_false (ignore)
- bfd *ignore;
+bfd_boolean
+_bfd_bool_bfd_asection_bfd_asection_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ asection *isec ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED,
+ asection *osec ATTRIBUTE_UNUSED)
{
- return false;
+ return TRUE;
}
-boolean
-bfd_true (ignore)
- bfd *ignore;
+bfd_boolean
+_bfd_bool_bfd_asymbol_bfd_asymbol_true (bfd *ibfd ATTRIBUTE_UNUSED,
+ asymbol *isym ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED,
+ asymbol *osym ATTRIBUTE_UNUSED)
{
- return true;
+ return TRUE;
}
+bfd_boolean
+_bfd_bool_bfd_ptr_true (bfd *abfd ATTRIBUTE_UNUSED,
+ void *ptr ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+/* A routine which is used in target vectors for unsupported
+ operations which return a pointer value. */
+
void *
-bfd_nullvoidptr(ignore)
-bfd *ignore;
+_bfd_ptr_bfd_null_error (bfd *ignore ATTRIBUTE_UNUSED)
{
- return (void *)NULL;
+ bfd_set_error (bfd_error_invalid_operation);
+ return NULL;
}
-int
-bfd_0(ignore)
-bfd *ignore;
+
+int
+_bfd_int_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
-unsigned int
-bfd_0u(ignore)
-bfd *ignore;
+
+unsigned int
+_bfd_uint_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
{
return 0;
}
-void
-bfd_void(ignore)
-bfd *ignore;
+long
+_bfd_long_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+/* A routine which is used in target vectors for unsupported
+ operations which return -1 on error. */
+
+long
+_bfd_long_bfd_n1_error (bfd *ignore_abfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+}
+
+void
+_bfd_void_bfd (bfd *ignore ATTRIBUTE_UNUSED)
+{
+}
+
+void
+_bfd_void_bfd_link (bfd *abfd ATTRIBUTE_UNUSED,
+ struct bfd_link_info *info ATTRIBUTE_UNUSED)
+{
+}
+
+void
+_bfd_void_bfd_asection (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED)
+{
+}
+
+long
+_bfd_norelocs_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED)
+{
+ return sizeof (arelent *);
+}
+
+long
+_bfd_norelocs_canonicalize_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ arelent **relptr,
+ asymbol **symbols ATTRIBUTE_UNUSED)
+{
+ *relptr = NULL;
+ return 0;
+}
+
+void
+_bfd_norelocs_set_reloc (bfd *abfd ATTRIBUTE_UNUSED,
+ asection *sec ATTRIBUTE_UNUSED,
+ arelent **relptr ATTRIBUTE_UNUSED,
+ unsigned int count ATTRIBUTE_UNUSED)
{
+ /* Do nothing. */
}
-boolean
-_bfd_dummy_core_file_matches_executable_p (ignore_core_bfd, ignore_exec_bfd)
- bfd *ignore_core_bfd;
-bfd *ignore_exec_bfd;
+bfd_boolean
+_bfd_nocore_core_file_matches_executable_p
+ (bfd *ignore_core_bfd ATTRIBUTE_UNUSED,
+ bfd *ignore_exec_bfd ATTRIBUTE_UNUSED)
{
- bfd_error = invalid_operation;
- return false;
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
}
-/* of course you can't initialize a function to be the same as another, grr */
+/* Routine to handle core_file_failing_command entry point for targets
+ without core file support. */
char *
-_bfd_dummy_core_file_failing_command (ignore_abfd)
- bfd *ignore_abfd;
+_bfd_nocore_core_file_failing_command (bfd *ignore_abfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return NULL;
+}
+
+/* Routine to handle core_file_failing_signal entry point for targets
+ without core file support. */
+
+int
+_bfd_nocore_core_file_failing_signal (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
- return (char *)NULL;
+ bfd_set_error (bfd_error_invalid_operation);
+ return 0;
}
+/* Routine to handle the core_file_pid entry point for targets without
+ core file support. */
+
int
-_bfd_dummy_core_file_failing_signal (ignore_abfd)
- bfd *ignore_abfd;
+_bfd_nocore_core_file_pid (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
+ bfd_set_error (bfd_error_invalid_operation);
return 0;
}
-bfd_target *
-_bfd_dummy_target (ignore_abfd)
- bfd *ignore_abfd;
+bfd_cleanup
+_bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
{
+ bfd_set_error (bfd_error_wrong_format);
return 0;
}
\f
-/** zalloc -- allocate and clear storage */
+/* Allocate memory using malloc. */
+#ifndef SSIZE_MAX
+#define SSIZE_MAX ((size_t) -1 >> 1)
+#endif
-#ifndef zalloc
-char *
-zalloc (size)
- size_t size;
+void *
+bfd_malloc (bfd_size_type size)
{
- char *ptr = (char *) malloc (size);
+ void *ptr;
+ size_t sz = (size_t) size;
+
+ if (size != sz
+ /* This is to pacify memory checkers like valgrind. */
+ || sz > SSIZE_MAX)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
- if ((ptr != NULL) && (size != 0))
- memset(ptr,0, size);
+ ptr = malloc (sz);
+ if (ptr == NULL && sz != 0)
+ bfd_set_error (bfd_error_no_memory);
return ptr;
}
-#endif
-\f
-/* Some IO code */
+void *
+bfd_realloc (void *ptr, bfd_size_type size)
+{
+ void *ret;
+ size_t sz = (size_t) size;
+
+ if (ptr == NULL)
+ return bfd_malloc (size);
-/* Note that archive entries don't have streams; they share their parent's.
- This allows someone to play with the iostream behind bfd's back.
+ if (size != sz
+ /* This is to pacify memory checkers like valgrind. */
+ || sz > SSIZE_MAX)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
- Also, note that the origin pointer points to the beginning of a file's
- contents (0 for non-archive elements). For archive entries this is the
- first octet in the file, NOT the beginning of the archive header. */
+ ret = realloc (ptr, sz);
-size_t
-bfd_read (ptr, size, nitems, abfd)
- PTR ptr;
- size_t size;
- size_t nitems;
- bfd *abfd;
-{
- return fread (ptr, 1, size*nitems, bfd_cache_lookup(abfd));
+ if (ret == NULL && sz != 0)
+ bfd_set_error (bfd_error_no_memory);
+
+ return ret;
}
-size_t
-bfd_write (ptr, size, nitems, abfd)
- PTR ptr;
- size_t size;
- size_t nitems;
- bfd *abfd;
+/* Reallocate memory using realloc.
+ If this fails the pointer is freed before returning. */
+
+void *
+bfd_realloc_or_free (void *ptr, bfd_size_type size)
{
- return fwrite (ptr, 1, size*nitems, bfd_cache_lookup(abfd));
-}
+ void *ret = bfd_realloc (ptr, size);
-int
-bfd_seek (abfd, position, direction)
-bfd * CONST abfd;
-CONST file_ptr position;
-CONST int direction;
-{
- /* For the time being, a bfd may not seek to it's end. The
- problem is that we don't easily have a way to recognize
- the end of an element in an archive. */
-
- BFD_ASSERT(direction == SEEK_SET
- || direction == SEEK_CUR);
-
- if (direction == SEEK_SET && abfd->my_archive != NULL)
- {
- /* This is a set within an archive, so we need to
- add the base of the object within the archive */
- return(fseek(bfd_cache_lookup(abfd),
- position + abfd->origin,
- direction));
- }
- else
- {
- return(fseek(bfd_cache_lookup(abfd), position, direction));
- }
+ if (ret == NULL && ptr != NULL)
+ free (ptr);
+
+ return ret;
}
-long
-bfd_tell (abfd)
- bfd *abfd;
+/* Allocate memory using malloc and clear it. */
+
+void *
+bfd_zmalloc (bfd_size_type size)
{
- file_ptr ptr;
+ void *ptr = bfd_malloc (size);
- ptr = ftell (bfd_cache_lookup(abfd));
+ if (ptr != NULL && size > 0)
+ memset (ptr, 0, (size_t) size);
- if (abfd->my_archive)
- ptr -= abfd->origin;
- return ptr;
+ return ptr;
}
-\f
-/** Make a string table */
-
-/* Add string to table pointed to by table, at location starting with free_ptr.
- resizes the table if necessary (if it's NULL, creates it, ignoring
- table_length). Updates free_ptr, table, table_length */
-
-boolean
-bfd_add_to_string_table (table, new_string, table_length, free_ptr)
- char **table, **free_ptr;
- char *new_string;
- unsigned int *table_length;
-{
- size_t string_length = strlen (new_string) + 1; /* include null here */
- char *base = *table;
- size_t space_length = *table_length;
- unsigned int offset = (base ? *free_ptr - base : 0);
-
- if (base == NULL) {
- /* Avoid a useless regrow if we can (but of course we still
- take it next time */
- space_length = (string_length < DEFAULT_STRING_SPACE_SIZE ?
- DEFAULT_STRING_SPACE_SIZE : string_length+1);
- base = zalloc (space_length);
-
- if (base == NULL) {
- bfd_error = no_memory;
- return false;
- }
- }
- if ((size_t)(offset + string_length) >= space_length) {
- /* Make sure we will have enough space */
- while ((size_t)(offset + string_length) >= space_length)
- space_length += space_length/2; /* grow by 50% */
+/*
+INTERNAL_FUNCTION
+ bfd_write_bigendian_4byte_int
- base = (char *) realloc (base, space_length);
- if (base == NULL) {
- bfd_error = no_memory;
- return false;
- }
+SYNOPSIS
+ bfd_boolean bfd_write_bigendian_4byte_int (bfd *, unsigned int);
- }
+DESCRIPTION
+ Write a 4 byte integer @var{i} to the output BFD @var{abfd}, in big
+ endian order regardless of what else is going on. This is useful in
+ archives.
- memcpy (base + offset, new_string, string_length);
- *table = base;
- *table_length = space_length;
- *free_ptr = base + offset + string_length;
-
- return true;
+*/
+bfd_boolean
+bfd_write_bigendian_4byte_int (bfd *abfd, unsigned int i)
+{
+ bfd_byte buffer[4];
+ bfd_putb32 ((bfd_vma) i, buffer);
+ return bfd_bwrite (buffer, (bfd_size_type) 4, abfd) == 4;
}
+
\f
/** The do-it-yourself (byte) sex-change kit */
/* FIXME: Should these take a count argument?
Answer (gnu@cygnus.com): No, but perhaps they should be inline
- functions in swap.h #ifdef __GNUC__.
- Gprof them later and find out. */
+ functions in swap.h #ifdef __GNUC__.
+ Gprof them later and find out. */
+
+/*
+FUNCTION
+ bfd_put_size
+FUNCTION
+ bfd_get_size
+
+DESCRIPTION
+ These macros as used for reading and writing raw data in
+ sections; each access (except for bytes) is vectored through
+ the target format of the BFD and mangled accordingly. The
+ mangling performs any necessary endian translations and
+ removes alignment restrictions. Note that types accepted and
+ returned by these macros are identical so they can be swapped
+ around in macros---for example, @file{libaout.h} defines <<GET_WORD>>
+ to either <<bfd_get_32>> or <<bfd_get_64>>.
+
+ In the put routines, @var{val} must be a <<bfd_vma>>. If we are on a
+ system without prototypes, the caller is responsible for making
+ sure that is true, with a cast if necessary. We don't cast
+ them in the macro definitions because that would prevent <<lint>>
+ or <<gcc -Wall>> from detecting sins such as passing a pointer.
+ To detect calling these with less than a <<bfd_vma>>, use
+ <<gcc -Wconversion>> on a host with 64 bit <<bfd_vma>>'s.
+
+.
+.{* Byte swapping macros for user section data. *}
+.
+.#define bfd_put_8(abfd, val, ptr) \
+. ((void) (*((unsigned char *) (ptr)) = (val) & 0xff))
+.#define bfd_put_signed_8 \
+. bfd_put_8
+.#define bfd_get_8(abfd, ptr) \
+. ((bfd_vma) *(const unsigned char *) (ptr) & 0xff)
+.#define bfd_get_signed_8(abfd, ptr) \
+. ((((bfd_signed_vma) *(const unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80)
+.
+.#define bfd_put_16(abfd, val, ptr) \
+. BFD_SEND (abfd, bfd_putx16, ((val),(ptr)))
+.#define bfd_put_signed_16 \
+. bfd_put_16
+.#define bfd_get_16(abfd, ptr) \
+. BFD_SEND (abfd, bfd_getx16, (ptr))
+.#define bfd_get_signed_16(abfd, ptr) \
+. BFD_SEND (abfd, bfd_getx_signed_16, (ptr))
+.
+.#define bfd_put_24(abfd, val, ptr) \
+. do \
+. if (bfd_big_endian (abfd)) \
+. bfd_putb24 ((val), (ptr)); \
+. else \
+. bfd_putl24 ((val), (ptr)); \
+. while (0)
+.
+.bfd_vma bfd_getb24 (const void *p);
+.bfd_vma bfd_getl24 (const void *p);
+.
+.#define bfd_get_24(abfd, ptr) \
+. (bfd_big_endian (abfd) ? bfd_getb24 (ptr) : bfd_getl24 (ptr))
+.
+.#define bfd_put_32(abfd, val, ptr) \
+. BFD_SEND (abfd, bfd_putx32, ((val),(ptr)))
+.#define bfd_put_signed_32 \
+. bfd_put_32
+.#define bfd_get_32(abfd, ptr) \
+. BFD_SEND (abfd, bfd_getx32, (ptr))
+.#define bfd_get_signed_32(abfd, ptr) \
+. BFD_SEND (abfd, bfd_getx_signed_32, (ptr))
+.
+.#define bfd_put_64(abfd, val, ptr) \
+. BFD_SEND (abfd, bfd_putx64, ((val), (ptr)))
+.#define bfd_put_signed_64 \
+. bfd_put_64
+.#define bfd_get_64(abfd, ptr) \
+. BFD_SEND (abfd, bfd_getx64, (ptr))
+.#define bfd_get_signed_64(abfd, ptr) \
+. BFD_SEND (abfd, bfd_getx_signed_64, (ptr))
+.
+.#define bfd_get(bits, abfd, ptr) \
+. ((bits) == 8 ? bfd_get_8 (abfd, ptr) \
+. : (bits) == 16 ? bfd_get_16 (abfd, ptr) \
+. : (bits) == 32 ? bfd_get_32 (abfd, ptr) \
+. : (bits) == 64 ? bfd_get_64 (abfd, ptr) \
+. : (abort (), (bfd_vma) - 1))
+.
+.#define bfd_put(bits, abfd, val, ptr) \
+. ((bits) == 8 ? bfd_put_8 (abfd, val, ptr) \
+. : (bits) == 16 ? bfd_put_16 (abfd, val, ptr) \
+. : (bits) == 32 ? bfd_put_32 (abfd, val, ptr) \
+. : (bits) == 64 ? bfd_put_64 (abfd, val, ptr) \
+. : (abort (), (void) 0))
+.
+*/
+
+/*
+FUNCTION
+ bfd_h_put_size
+ bfd_h_get_size
+
+DESCRIPTION
+ These macros have the same function as their <<bfd_get_x>>
+ brethren, except that they are used for removing information
+ for the header records of object files. Believe it or not,
+ some object files keep their header records in big endian
+ order and their data in little endian order.
+.
+.{* Byte swapping macros for file header data. *}
+.
+.#define bfd_h_put_8(abfd, val, ptr) \
+. bfd_put_8 (abfd, val, ptr)
+.#define bfd_h_put_signed_8(abfd, val, ptr) \
+. bfd_put_8 (abfd, val, ptr)
+.#define bfd_h_get_8(abfd, ptr) \
+. bfd_get_8 (abfd, ptr)
+.#define bfd_h_get_signed_8(abfd, ptr) \
+. bfd_get_signed_8 (abfd, ptr)
+.
+.#define bfd_h_put_16(abfd, val, ptr) \
+. BFD_SEND (abfd, bfd_h_putx16, (val, ptr))
+.#define bfd_h_put_signed_16 \
+. bfd_h_put_16
+.#define bfd_h_get_16(abfd, ptr) \
+. BFD_SEND (abfd, bfd_h_getx16, (ptr))
+.#define bfd_h_get_signed_16(abfd, ptr) \
+. BFD_SEND (abfd, bfd_h_getx_signed_16, (ptr))
+.
+.#define bfd_h_put_32(abfd, val, ptr) \
+. BFD_SEND (abfd, bfd_h_putx32, (val, ptr))
+.#define bfd_h_put_signed_32 \
+. bfd_h_put_32
+.#define bfd_h_get_32(abfd, ptr) \
+. BFD_SEND (abfd, bfd_h_getx32, (ptr))
+.#define bfd_h_get_signed_32(abfd, ptr) \
+. BFD_SEND (abfd, bfd_h_getx_signed_32, (ptr))
+.
+.#define bfd_h_put_64(abfd, val, ptr) \
+. BFD_SEND (abfd, bfd_h_putx64, (val, ptr))
+.#define bfd_h_put_signed_64 \
+. bfd_h_put_64
+.#define bfd_h_get_64(abfd, ptr) \
+. BFD_SEND (abfd, bfd_h_getx64, (ptr))
+.#define bfd_h_get_signed_64(abfd, ptr) \
+. BFD_SEND (abfd, bfd_h_getx_signed_64, (ptr))
+.
+.{* Aliases for the above, which should eventually go away. *}
+.
+.#define H_PUT_64 bfd_h_put_64
+.#define H_PUT_32 bfd_h_put_32
+.#define H_PUT_16 bfd_h_put_16
+.#define H_PUT_8 bfd_h_put_8
+.#define H_PUT_S64 bfd_h_put_signed_64
+.#define H_PUT_S32 bfd_h_put_signed_32
+.#define H_PUT_S16 bfd_h_put_signed_16
+.#define H_PUT_S8 bfd_h_put_signed_8
+.#define H_GET_64 bfd_h_get_64
+.#define H_GET_32 bfd_h_get_32
+.#define H_GET_16 bfd_h_get_16
+.#define H_GET_8 bfd_h_get_8
+.#define H_GET_S64 bfd_h_get_signed_64
+.#define H_GET_S32 bfd_h_get_signed_32
+.#define H_GET_S16 bfd_h_get_signed_16
+.#define H_GET_S8 bfd_h_get_signed_8
+.
+.*/
+
+/* Sign extension to bfd_signed_vma. */
+#define COERCE16(x) (((bfd_vma) (x) ^ 0x8000) - 0x8000)
+#define COERCE32(x) (((bfd_vma) (x) ^ 0x80000000) - 0x80000000)
+#define COERCE64(x) \
+ (((bfd_uint64_t) (x) ^ ((bfd_uint64_t) 1 << 63)) - ((bfd_uint64_t) 1 << 63))
+
+bfd_vma
+bfd_getb16 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return (addr[0] << 8) | addr[1];
+}
+
+bfd_vma
+bfd_getl16 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return (addr[1] << 8) | addr[0];
+}
-short
-_do_getbshort (addr)
- register bfd_byte *addr;
+bfd_signed_vma
+bfd_getb_signed_16 (const void *p)
{
- return (addr[0] << 8) | addr[1];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return COERCE16 ((addr[0] << 8) | addr[1]);
}
-short
-_do_getlshort (addr)
- register bfd_byte *addr;
+bfd_signed_vma
+bfd_getl_signed_16 (const void *p)
{
- return (addr[1] << 8) | addr[0];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ return COERCE16 ((addr[1] << 8) | addr[0]);
}
void
-_do_putbshort (data, addr)
- int data; /* Actually short, but ansi C sucks */
- register bfd_byte *addr;
+bfd_putb16 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte)(data >> 8);
- addr[1] = (bfd_byte )data;
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 8) & 0xff;
+ addr[1] = data & 0xff;
}
void
-_do_putlshort (data, addr)
- int data; /* Actually short, but ansi C sucks */
- register bfd_byte *addr;
+bfd_putl16 (bfd_vma data, void *p)
{
- addr[0] = (bfd_byte )data;
- addr[1] = (bfd_byte)(data >> 8);
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
}
-long
-_do_getblong (addr)
- register bfd_byte *addr;
+void
+bfd_putb24 (bfd_vma data, void *p)
{
- return ((((addr[0] << 8) | addr[1]) << 8) | addr[2]) << 8 | addr[3];
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 16) & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = data & 0xff;
}
-long
-_do_getllong (addr)
- register bfd_byte *addr;
+void
+bfd_putl24 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = (data >> 16) & 0xff;
+}
+
+bfd_vma
+bfd_getb24 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0] << 16;
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2];
+ return v;
+}
+
+bfd_vma
+bfd_getl24 (const void *p)
{
- return ((((addr[3] << 8) | addr[2]) << 8) | addr[1]) << 8 | addr[0];
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0];
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2] << 16;
+ return v;
+}
+
+bfd_vma
+bfd_getb32 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0] << 24;
+ v |= (unsigned long) addr[1] << 16;
+ v |= (unsigned long) addr[2] << 8;
+ v |= (unsigned long) addr[3];
+ return v;
+}
+
+bfd_vma
+bfd_getl32 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0];
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2] << 16;
+ v |= (unsigned long) addr[3] << 24;
+ return v;
+}
+
+bfd_signed_vma
+bfd_getb_signed_32 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0] << 24;
+ v |= (unsigned long) addr[1] << 16;
+ v |= (unsigned long) addr[2] << 8;
+ v |= (unsigned long) addr[3];
+ return COERCE32 (v);
+}
+
+bfd_signed_vma
+bfd_getl_signed_32 (const void *p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ unsigned long v;
+
+ v = (unsigned long) addr[0];
+ v |= (unsigned long) addr[1] << 8;
+ v |= (unsigned long) addr[2] << 16;
+ v |= (unsigned long) addr[3] << 24;
+ return COERCE32 (v);
+}
+
+bfd_uint64_t
+bfd_getb64 (const void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[0]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[7];
+
+ return v;
+#else
+ BFD_FAIL();
+ return 0;
+#endif
+}
+
+bfd_uint64_t
+bfd_getl64 (const void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[7]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[0];
+
+ return v;
+#else
+ BFD_FAIL();
+ return 0;
+#endif
+
+}
+
+bfd_int64_t
+bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[0]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[7];
+
+ return COERCE64 (v);
+#else
+ BFD_FAIL();
+ return 0;
+#endif
+}
+
+bfd_int64_t
+bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t v;
+
+ v = addr[7]; v <<= 8;
+ v |= addr[6]; v <<= 8;
+ v |= addr[5]; v <<= 8;
+ v |= addr[4]; v <<= 8;
+ v |= addr[3]; v <<= 8;
+ v |= addr[2]; v <<= 8;
+ v |= addr[1]; v <<= 8;
+ v |= addr[0];
+
+ return COERCE64 (v);
+#else
+ BFD_FAIL();
+ return 0;
+#endif
+}
+
+void
+bfd_putb32 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> 24) & 0xff;
+ addr[1] = (data >> 16) & 0xff;
+ addr[2] = (data >> 8) & 0xff;
+ addr[3] = data & 0xff;
+}
+
+void
+bfd_putl32 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = (data >> 16) & 0xff;
+ addr[3] = (data >> 24) & 0xff;
}
void
-_do_putblong (data, addr)
- unsigned long data;
- register bfd_byte *addr;
+bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
{
- addr[0] = (bfd_byte)(data >> 24);
- addr[1] = (bfd_byte)(data >> 16);
- addr[2] = (bfd_byte)(data >> 8);
- addr[3] = (bfd_byte)data;
+#ifdef BFD_HOST_64_BIT
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[0] = (data >> (7*8)) & 0xff;
+ addr[1] = (data >> (6*8)) & 0xff;
+ addr[2] = (data >> (5*8)) & 0xff;
+ addr[3] = (data >> (4*8)) & 0xff;
+ addr[4] = (data >> (3*8)) & 0xff;
+ addr[5] = (data >> (2*8)) & 0xff;
+ addr[6] = (data >> (1*8)) & 0xff;
+ addr[7] = (data >> (0*8)) & 0xff;
+#else
+ BFD_FAIL();
+#endif
}
void
-_do_putllong (data, addr)
- unsigned long data;
- register bfd_byte *addr;
+bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
{
- addr[0] = (bfd_byte)data;
- addr[1] = (bfd_byte)(data >> 8);
- addr[2] = (bfd_byte)(data >> 16);
- addr[3] = (bfd_byte)(data >> 24);
+#ifdef BFD_HOST_64_BIT
+ bfd_byte *addr = (bfd_byte *) p;
+ addr[7] = (data >> (7*8)) & 0xff;
+ addr[6] = (data >> (6*8)) & 0xff;
+ addr[5] = (data >> (5*8)) & 0xff;
+ addr[4] = (data >> (4*8)) & 0xff;
+ addr[3] = (data >> (3*8)) & 0xff;
+ addr[2] = (data >> (2*8)) & 0xff;
+ addr[1] = (data >> (1*8)) & 0xff;
+ addr[0] = (data >> (0*8)) & 0xff;
+#else
+ BFD_FAIL();
+#endif
}
+void
+bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p)
+{
+ bfd_byte *addr = (bfd_byte *) p;
+ int i;
+ int bytes;
+
+ if (bits % 8 != 0)
+ abort ();
+ bytes = bits / 8;
+ for (i = 0; i < bytes; i++)
+ {
+ int addr_index = big_p ? bytes - i - 1 : i;
+ addr[addr_index] = data & 0xff;
+ data >>= 8;
+ }
+}
+
+bfd_uint64_t
+bfd_get_bits (const void *p, int bits, bfd_boolean big_p)
+{
+ const bfd_byte *addr = (const bfd_byte *) p;
+ bfd_uint64_t data;
+ int i;
+ int bytes;
+ if (bits % 8 != 0)
+ abort ();
+ data = 0;
+ bytes = bits / 8;
+ for (i = 0; i < bytes; i++)
+ {
+ int addr_index = big_p ? i : bytes - i - 1;
+ data = (data << 8) | addr[addr_index];
+ }
+
+ return data;
+}
+\f
+/* Default implementation */
+bfd_boolean
+_bfd_generic_get_section_contents (bfd *abfd,
+ sec_ptr section,
+ void *location,
+ file_ptr offset,
+ bfd_size_type count)
+{
+ bfd_size_type sz;
+ if (count == 0)
+ return TRUE;
+
+ if (section->compress_status != COMPRESS_SECTION_NONE)
+ {
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: unable to get decompressed section %pA"),
+ abfd, section);
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
+ /* We do allow reading of a section after bfd_final_link has
+ written the contents out to disk. In that situation, rawsize is
+ just a stale version of size, so ignore it. Otherwise we must be
+ reading an input section, where rawsize, if different to size,
+ is the on-disk size. */
+ if (abfd->direction != write_direction && section->rawsize != 0)
+ sz = section->rawsize;
+ else
+ sz = section->size;
+ if (offset + count < count
+ || offset + count > sz
+ || (abfd->my_archive != NULL
+ && !bfd_is_thin_archive (abfd->my_archive)
+ && ((ufile_ptr) section->filepos + offset + count
+ > arelt_size (abfd))))
+ {
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
+ if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
+ || bfd_bread (location, count, abfd) != count)
+ return FALSE;
+
+ return TRUE;
+}
+
+bfd_boolean
+_bfd_generic_get_section_contents_in_window
+ (bfd *abfd ATTRIBUTE_UNUSED,
+ sec_ptr section ATTRIBUTE_UNUSED,
+ bfd_window *w ATTRIBUTE_UNUSED,
+ file_ptr offset ATTRIBUTE_UNUSED,
+ bfd_size_type count ATTRIBUTE_UNUSED)
+{
+#ifdef USE_MMAP
+ bfd_size_type sz;
+
+ if (count == 0)
+ return TRUE;
+ if (abfd->xvec->_bfd_get_section_contents
+ != _bfd_generic_get_section_contents)
+ {
+ /* We don't know what changes the bfd's get_section_contents
+ method may have to make. So punt trying to map the file
+ window, and let get_section_contents do its thing. */
+ /* @@ FIXME : If the internal window has a refcount of 1 and was
+ allocated with malloc instead of mmap, just reuse it. */
+ bfd_free_window (w);
+ w->i = bfd_zmalloc (sizeof (bfd_window_internal));
+ if (w->i == NULL)
+ return FALSE;
+ w->i->data = bfd_malloc (count);
+ if (w->i->data == NULL)
+ {
+ free (w->i);
+ w->i = NULL;
+ return FALSE;
+ }
+ w->i->mapped = 0;
+ w->i->refcount = 1;
+ w->size = w->i->size = count;
+ w->data = w->i->data;
+ return bfd_get_section_contents (abfd, section, w->data, offset, count);
+ }
+ if (abfd->direction != write_direction && section->rawsize != 0)
+ sz = section->rawsize;
+ else
+ sz = section->size;
+ if (offset + count < count
+ || offset + count > sz
+ || (abfd->my_archive != NULL
+ && !bfd_is_thin_archive (abfd->my_archive)
+ && ((ufile_ptr) section->filepos + offset + count
+ > arelt_size (abfd)))
+ || ! bfd_get_file_window (abfd, section->filepos + offset, count, w,
+ TRUE))
+ return FALSE;
+ return TRUE;
+#else
+ abort ();
+#endif
+}
+
+/* This generic function can only be used in implementations where creating
+ NEW sections is disallowed. It is useful in patching existing sections
+ in read-write files, though. See other set_section_contents functions
+ to see why it doesn't work for new sections. */
+bfd_boolean
+_bfd_generic_set_section_contents (bfd *abfd,
+ sec_ptr section,
+ const void *location,
+ file_ptr offset,
+ bfd_size_type count)
+{
+ if (count == 0)
+ return TRUE;
+
+ if (bfd_seek (abfd, section->filepos + offset, SEEK_SET) != 0
+ || bfd_bwrite (location, count, abfd) != count)
+ return FALSE;
+
+ return TRUE;
+}
+
+/*
+INTERNAL_FUNCTION
+ bfd_log2
+
+SYNOPSIS
+ unsigned int bfd_log2 (bfd_vma x);
+
+DESCRIPTION
+ Return the log base 2 of the value supplied, rounded up. E.g., an
+ @var{x} of 1025 returns 11. A @var{x} of 0 returns 0.
+*/
+
+unsigned int
+bfd_log2 (bfd_vma x)
+{
+ unsigned int result = 0;
+
+ if (x <= 1)
+ return result;
+ --x;
+ do
+ ++result;
+ while ((x >>= 1) != 0);
+ return result;
+}
+
+bfd_boolean
+bfd_generic_is_local_label_name (bfd *abfd, const char *name)
+{
+ char locals_prefix = (bfd_get_symbol_leading_char (abfd) == '_') ? 'L' : '.';
+
+ return name[0] == locals_prefix;
+}
+
+/* Give a warning at runtime if someone compiles code which calls
+ old routines. */
+
+void
+_bfd_warn_deprecated (const char *what,
+ const char *file,
+ int line,
+ const char *func)
+{
+ /* Poor man's tracking of functions we've already warned about. */
+ static size_t mask = 0;
+
+ if (~(size_t) func & ~mask)
+ {
+ fflush (stdout);
+ /* Note: separate sentences in order to allow
+ for translation into other languages. */
+ if (func)
+ /* xgettext:c-format */
+ fprintf (stderr, _("Deprecated %s called at %s line %d in %s\n"),
+ what, file, line, func);
+ else
+ fprintf (stderr, _("Deprecated %s called\n"), what);
+ fflush (stderr);
+ mask |= ~(size_t) func;
+ }
+}
+
+/* Helper function for reading uleb128 encoded data. */
+
+bfd_vma
+_bfd_read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_byte *buf,
+ unsigned int *bytes_read_ptr)
+{
+ bfd_vma result;
+ unsigned int num_read;
+ unsigned int shift;
+ unsigned char byte;
+
+ result = 0;
+ shift = 0;
+ num_read = 0;
+ do
+ {
+ byte = bfd_get_8 (abfd, buf);
+ buf++;
+ num_read++;
+ result |= (((bfd_vma) byte & 0x7f) << shift);
+ shift += 7;
+ }
+ while (byte & 0x80);
+ *bytes_read_ptr = num_read;
+ return result;
+}
+
+/* Read in a LEB128 encoded value from ABFD starting at DATA.
+ If SIGN is true, return a signed LEB128 value.
+ If LENGTH_RETURN is not NULL, return in it the number of bytes read.
+ No bytes will be read at address END or beyond. */
+
+bfd_vma
+_bfd_safe_read_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_byte *data,
+ unsigned int *length_return,
+ bfd_boolean sign,
+ const bfd_byte * const end)
+{
+ bfd_vma result = 0;
+ unsigned int num_read = 0;
+ unsigned int shift = 0;
+ unsigned char byte = 0;
+
+ while (data < end)
+ {
+ byte = bfd_get_8 (abfd, data);
+ data++;
+ num_read++;
+
+ result |= ((bfd_vma) (byte & 0x7f)) << shift;
+
+ shift += 7;
+ if ((byte & 0x80) == 0)
+ break;
+ }
+
+ if (length_return != NULL)
+ *length_return = num_read;
+
+ if (sign && (shift < 8 * sizeof (result)) && (byte & 0x40))
+ result |= -((bfd_vma) 1 << shift);
+
+ return result;
+}
+
+/* Helper function for reading sleb128 encoded data. */
+
+bfd_signed_vma
+_bfd_read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED,
+ bfd_byte *buf,
+ unsigned int *bytes_read_ptr)
+{
+ bfd_vma result;
+ unsigned int shift;
+ unsigned int num_read;
+ unsigned char byte;
+
+ result = 0;
+ shift = 0;
+ num_read = 0;
+ do
+ {
+ byte = bfd_get_8 (abfd, buf);
+ buf ++;
+ num_read ++;
+ result |= (((bfd_vma) byte & 0x7f) << shift);
+ shift += 7;
+ }
+ while (byte & 0x80);
+ if (shift < 8 * sizeof (result) && (byte & 0x40))
+ result |= (((bfd_vma) -1) << shift);
+ *bytes_read_ptr = num_read;
+ return result;
+}
+
+bfd_boolean
+_bfd_generic_init_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
+ asection *isec ATTRIBUTE_UNUSED,
+ bfd *obfd ATTRIBUTE_UNUSED,
+ asection *osec ATTRIBUTE_UNUSED,
+ struct bfd_link_info *link_info ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
projects / deliverable / binutils-gdb.git / blobdiff