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-rw-r--r--contrib/binutils/bfd/libbfd.c857
1 files changed, 857 insertions, 0 deletions
diff --git a/contrib/binutils/bfd/libbfd.c b/contrib/binutils/bfd/libbfd.c
new file mode 100644
index 0000000..be090e9
--- /dev/null
+++ b/contrib/binutils/bfd/libbfd.c
@@ -0,0 +1,857 @@
+/* Assorted BFD support routines, only used internally.
+ Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2004
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+
+#ifndef HAVE_GETPAGESIZE
+#define getpagesize() 2048
+#endif
+
+/*
+SECTION
+ Internal functions
+
+DESCRIPTION
+ These routines are used within BFD.
+ They are not intended for export, but are documented here for
+ completeness.
+*/
+
+/* A routine which is used in target vectors for unsupported
+ operations. */
+
+bfd_boolean
+bfd_false (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+}
+
+/* A routine which is used in target vectors for supported operations
+ which do not actually do anything. */
+
+bfd_boolean
+bfd_true (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return TRUE;
+}
+
+/* A routine which is used in target vectors for unsupported
+ operations which return a pointer value. */
+
+void *
+bfd_nullvoidptr (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return NULL;
+}
+
+int
+bfd_0 (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+unsigned int
+bfd_0u (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+long
+bfd_0l (bfd *ignore ATTRIBUTE_UNUSED)
+{
+ return 0;
+}
+
+/* A routine which is used in target vectors for unsupported
+ operations which return -1 on error. */
+
+long
+_bfd_n1 (bfd *ignore_abfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return -1;
+}
+
+void
+bfd_void (bfd *ignore ATTRIBUTE_UNUSED)
+{
+}
+
+bfd_boolean
+_bfd_nocore_core_file_matches_executable_p
+ (bfd *ignore_core_bfd ATTRIBUTE_UNUSED,
+ bfd *ignore_exec_bfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+}
+
+/* Routine to handle core_file_failing_command entry point for targets
+ without core file support. */
+
+char *
+_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)
+{
+ bfd_set_error (bfd_error_invalid_operation);
+ return 0;
+}
+
+const bfd_target *
+_bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED)
+{
+ bfd_set_error (bfd_error_wrong_format);
+ return 0;
+}
+
+/* Allocate memory using malloc. */
+
+void *
+bfd_malloc (bfd_size_type size)
+{
+ void *ptr;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ ptr = malloc ((size_t) size);
+ if (ptr == NULL && (size_t) size != 0)
+ bfd_set_error (bfd_error_no_memory);
+
+ return ptr;
+}
+
+/* Reallocate memory using realloc. */
+
+void *
+bfd_realloc (void *ptr, bfd_size_type size)
+{
+ void *ret;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ if (ptr == NULL)
+ ret = malloc ((size_t) size);
+ else
+ ret = realloc (ptr, (size_t) size);
+
+ if (ret == NULL && (size_t) size != 0)
+ bfd_set_error (bfd_error_no_memory);
+
+ return ret;
+}
+
+/* Allocate memory using malloc and clear it. */
+
+void *
+bfd_zmalloc (bfd_size_type size)
+{
+ void *ptr;
+
+ if (size != (size_t) size)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return NULL;
+ }
+
+ ptr = malloc ((size_t) size);
+
+ if ((size_t) size != 0)
+ {
+ if (ptr == NULL)
+ bfd_set_error (bfd_error_no_memory);
+ else
+ memset (ptr, 0, (size_t) size);
+ }
+
+ return ptr;
+}
+/*
+INTERNAL_FUNCTION
+ bfd_write_bigendian_4byte_int
+
+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.
+
+*/
+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;
+}
+
+
+/** The do-it-yourself (byte) sex-change kit */
+
+/* The middle letter e.g. get<b>short indicates Big or Little endian
+ target machine. It doesn't matter what the byte order of the host
+ machine is; these routines work for either. */
+
+/* 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. */
+
+/*
+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) \
+. (*(unsigned char *) (ptr) & 0xff)
+.#define bfd_get_signed_8(abfd, ptr) \
+. (((*(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_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_vma) 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_signed_vma) (x) ^ 0x8000) - 0x8000)
+#define COERCE32(x) (((bfd_signed_vma) (x) ^ 0x80000000) - 0x80000000)
+#define EIGHT_GAZILLION ((bfd_int64_t) 1 << 63)
+#define COERCE64(x) \
+ (((bfd_int64_t) (x) ^ EIGHT_GAZILLION) - EIGHT_GAZILLION)
+
+bfd_vma
+bfd_getb16 (const void *p)
+{
+ const bfd_byte *addr = p;
+ return (addr[0] << 8) | addr[1];
+}
+
+bfd_vma
+bfd_getl16 (const void *p)
+{
+ const bfd_byte *addr = p;
+ return (addr[1] << 8) | addr[0];
+}
+
+bfd_signed_vma
+bfd_getb_signed_16 (const void *p)
+{
+ const bfd_byte *addr = p;
+ return COERCE16 ((addr[0] << 8) | addr[1]);
+}
+
+bfd_signed_vma
+bfd_getl_signed_16 (const void *p)
+{
+ const bfd_byte *addr = p;
+ return COERCE16 ((addr[1] << 8) | addr[0]);
+}
+
+void
+bfd_putb16 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = p;
+ addr[0] = (data >> 8) & 0xff;
+ addr[1] = data & 0xff;
+}
+
+void
+bfd_putl16 (bfd_vma data, void *p)
+{
+ bfd_byte *addr = p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+}
+
+bfd_vma
+bfd_getb32 (const void *p)
+{
+ const bfd_byte *addr = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = 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 = p;
+ addr[0] = data & 0xff;
+ addr[1] = (data >> 8) & 0xff;
+ addr[2] = (data >> 16) & 0xff;
+ addr[3] = (data >> 24) & 0xff;
+}
+
+void
+bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ bfd_byte *addr = 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
+bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED)
+{
+#ifdef BFD_HOST_64_BIT
+ bfd_byte *addr = 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 = p;
+ int i;
+ int bytes;
+
+ if (bits % 8 != 0)
+ abort ();
+
+ bytes = bits / 8;
+ for (i = 0; i < bytes; i++)
+ {
+ int index = big_p ? bytes - i - 1 : i;
+
+ 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 = 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 index = big_p ? i : bytes - i - 1;
+
+ data = (data << 8) | addr[index];
+ }
+
+ return data;
+}
+
+/* Default implementation */
+
+bfd_boolean
+_bfd_generic_get_section_contents (bfd *abfd,
+ sec_ptr section,
+ void *location,
+ file_ptr offset,
+ bfd_size_type count)
+{
+ if (count == 0)
+ return TRUE;
+
+ if (offset + count > section->_raw_size)
+ {
+ 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
+ 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 (offset + count > section->_raw_size
+ || ! 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;
+
+ while ((x = (x >> 1)) != 0)
+ ++result;
+ 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;
+}
+
+/* Can be used from / for bfd_merge_private_bfd_data to check that
+ endianness matches between input and output file. Returns
+ TRUE for a match, otherwise returns FALSE and emits an error. */
+bfd_boolean
+_bfd_generic_verify_endian_match (bfd *ibfd, bfd *obfd)
+{
+ if (ibfd->xvec->byteorder != obfd->xvec->byteorder
+ && ibfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN
+ && obfd->xvec->byteorder != BFD_ENDIAN_UNKNOWN)
+ {
+ const char *msg;
+
+ if (bfd_big_endian (ibfd))
+ msg = _("%s: compiled for a big endian system and target is little endian");
+ else
+ msg = _("%s: compiled for a little endian system and target is big endian");
+
+ (*_bfd_error_handler) (msg, bfd_archive_filename (ibfd));
+
+ bfd_set_error (bfd_error_wrong_format);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+/* Give a warning at runtime if someone compiles code which calls
+ old routines. */
+
+void
+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)
+ {
+ /* Note: separate sentences in order to allow
+ for translation into other languages. */
+ if (func)
+ fprintf (stderr, _("Deprecated %s called at %s line %d in %s\n"),
+ what, file, line, func);
+ else
+ fprintf (stderr, _("Deprecated %s called\n"), what);
+ mask |= ~(size_t) func;
+ }
+}
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