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Diffstat (limited to 'binutils-2.24/bfd/libbfd.c')
| -rw-r--r-- | binutils-2.24/bfd/libbfd.c | 1141 |
1 files changed, 0 insertions, 1141 deletions
diff --git a/binutils-2.24/bfd/libbfd.c b/binutils-2.24/bfd/libbfd.c deleted file mode 100644 index 553c7295..00000000 --- a/binutils-2.24/bfd/libbfd.c +++ /dev/null @@ -1,1141 +0,0 @@ -/* Assorted BFD support routines, only used internally. - Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 - 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 3 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. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" - -#ifndef HAVE_GETPAGESIZE -#define getpagesize() 2048 -#endif - -/* -SECTION - Implementation details - -SUBSECTION - 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) -{ -} - -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; -} - -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; -} - -/* Routine to handle the core_file_pid entry point for targets without - core file support. */ - -int -_bfd_nocore_core_file_pid (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; -} - -/* Allocate memory using malloc, nmemb * size with overflow checking. */ - -void * -bfd_malloc2 (bfd_size_type nmemb, bfd_size_type size) -{ - void *ptr; - - if ((nmemb | size) >= HALF_BFD_SIZE_TYPE - && size != 0 - && nmemb > ~(bfd_size_type) 0 / size) - { - bfd_set_error (bfd_error_no_memory); - return NULL; - } - - size *= nmemb; - - 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; -} - -/* Reallocate memory using realloc, nmemb * size with overflow checking. */ - -void * -bfd_realloc2 (void *ptr, bfd_size_type nmemb, bfd_size_type size) -{ - void *ret; - - if ((nmemb | size) >= HALF_BFD_SIZE_TYPE - && size != 0 - && nmemb > ~(bfd_size_type) 0 / size) - { - bfd_set_error (bfd_error_no_memory); - return NULL; - } - - size *= nmemb; - - 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; -} - -/* Reallocate memory using realloc. - If this fails the pointer is freed before returning. */ - -void * -bfd_realloc_or_free (void *ptr, bfd_size_type size) -{ - size_t amount = (size_t) size; - void *ret; - - if (size != amount) - ret = NULL; - else if (ptr == NULL) - ret = malloc (amount); - else - ret = realloc (ptr, amount); - - if (ret == NULL) - { - if (amount > 0) - bfd_set_error (bfd_error_no_memory); - - if (ptr != NULL) - free (ptr); - } - - 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; -} - -/* Allocate memory using malloc (nmemb * size) with overflow checking - and clear it. */ - -void * -bfd_zmalloc2 (bfd_size_type nmemb, bfd_size_type size) -{ - void *ptr; - - if ((nmemb | size) >= HALF_BFD_SIZE_TYPE - && size != 0 - && nmemb > ~(bfd_size_type) 0 / size) - { - bfd_set_error (bfd_error_no_memory); - return NULL; - } - - size *= nmemb; - - 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) \ -. (*(const unsigned char *) (ptr) & 0xff) -.#define bfd_get_signed_8(abfd, ptr) \ -. (((*(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_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 = (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]; -} - -bfd_signed_vma -bfd_getb_signed_16 (const void *p) -{ - const bfd_byte *addr = (const bfd_byte *) p; - return COERCE16 ((addr[0] << 8) | addr[1]); -} - -bfd_signed_vma -bfd_getl_signed_16 (const void *p) -{ - const bfd_byte *addr = (const bfd_byte *) p; - return COERCE16 ((addr[1] << 8) | addr[0]); -} - -void -bfd_putb16 (bfd_vma data, void *p) -{ - bfd_byte *addr = (bfd_byte *) p; - addr[0] = (data >> 8) & 0xff; - addr[1] = data & 0xff; -} - -void -bfd_putl16 (bfd_vma data, void *p) -{ - bfd_byte *addr = (bfd_byte *) p; - addr[0] = data & 0xff; - addr[1] = (data >> 8) & 0xff; -} - -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 -bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) -{ -#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 -bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) -{ -#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; -} - -/* 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) - (_("%B: unable to get decompressed section %A"), - 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) - { - 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 > sz - || ! 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; -} - -/* 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 = _("%B: compiled for a big endian system and target is little endian"); - else - msg = _("%B: compiled for a little endian system and target is big endian"); - - (*_bfd_error_handler) (msg, 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) - { - fflush (stdout); - /* 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); - fflush (stderr); - mask |= ~(size_t) func; - } -} - -/* Helper function for reading uleb128 encoded data. */ - -bfd_vma -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; -} - -/* Helper function for reading sleb128 encoded data. */ - -bfd_signed_vma -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_find_line (bfd *abfd ATTRIBUTE_UNUSED, - asymbol **symbols ATTRIBUTE_UNUSED, - asymbol *symbol ATTRIBUTE_UNUSED, - const char **filename_ptr ATTRIBUTE_UNUSED, - unsigned int *linenumber_ptr ATTRIBUTE_UNUSED) -{ - return FALSE; -} - -bfd_boolean -_bfd_generic_find_nearest_line_discriminator (bfd *abfd ATTRIBUTE_UNUSED, - asection *section ATTRIBUTE_UNUSED, - asymbol **symbols ATTRIBUTE_UNUSED, - bfd_vma offset ATTRIBUTE_UNUSED, - const char **filename_ptr ATTRIBUTE_UNUSED, - const char **functionname_ptr ATTRIBUTE_UNUSED, - unsigned int *line_ptr ATTRIBUTE_UNUSED, - unsigned int *discriminator_ptr ATTRIBUTE_UNUSED) -{ - return FALSE; -} - -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; -} |