X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Flibbfd.c;h=efe10d22e8903ff257eb02b081bb2f4c927bc7ad;hb=refs%2Fheads%2Fconcurrent-displaced-stepping-2020-04-01;hp=ec1864c68fae9dcf8eeb8238c4d23c4590c548ac;hpb=4b74b98302cefd45d7a05d33698f693bd6ac3379;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/libbfd.c b/bfd/libbfd.c index ec1864c68f..efe10d22e8 100644 --- a/bfd/libbfd.c +++ b/bfd/libbfd.c @@ -1,14 +1,12 @@ /* 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. + Copyright (C) 1990-2020 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 + 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, @@ -18,10 +16,11 @@ 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. */ + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" #ifndef HAVE_GETPAGESIZE @@ -30,6 +29,9 @@ /* SECTION + Implementation details + +SUBSECTION Internal functions DESCRIPTION @@ -38,21 +40,87 @@ DESCRIPTION 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_false (bfd *ignore ATTRIBUTE_UNUSED) +_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_true (bfd *ignore ATTRIBUTE_UNUSED) +_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; +} + +bfd_boolean +_bfd_bool_bfd_uint_true (bfd *abfd ATTRIBUTE_UNUSED, + unsigned int flags ATTRIBUTE_UNUSED) +{ + return TRUE; +} + +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 TRUE; +} + +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; +} + +bfd_boolean +_bfd_bool_bfd_ptr_true (bfd *abfd ATTRIBUTE_UNUSED, + void *ptr ATTRIBUTE_UNUSED) { return TRUE; } @@ -61,26 +129,26 @@ bfd_true (bfd *ignore ATTRIBUTE_UNUSED) operations which return a pointer value. */ void * -bfd_nullvoidptr (bfd *ignore ATTRIBUTE_UNUSED) +_bfd_ptr_bfd_null_error (bfd *ignore ATTRIBUTE_UNUSED) { bfd_set_error (bfd_error_invalid_operation); return NULL; } int -bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) +_bfd_int_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) { return 0; } unsigned int -bfd_0u (bfd *ignore ATTRIBUTE_UNUSED) +_bfd_uint_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) { return 0; } long -bfd_0l (bfd *ignore ATTRIBUTE_UNUSED) +_bfd_long_bfd_0 (bfd *ignore ATTRIBUTE_UNUSED) { return 0; } @@ -89,15 +157,53 @@ bfd_0l (bfd *ignore ATTRIBUTE_UNUSED) operations which return -1 on error. */ long -_bfd_n1 (bfd *ignore_abfd ATTRIBUTE_UNUSED) +_bfd_long_bfd_n1_error (bfd *ignore_abfd ATTRIBUTE_UNUSED) { bfd_set_error (bfd_error_invalid_operation); return -1; } void -bfd_void (bfd *ignore ATTRIBUTE_UNUSED) +_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. */ } bfd_boolean @@ -129,7 +235,17 @@ _bfd_nocore_core_file_failing_signal (bfd *ignore_abfd ATTRIBUTE_UNUSED) return 0; } -const bfd_target * +/* 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; +} + +bfd_cleanup _bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED) { bfd_set_error (bfd_error_wrong_format); @@ -138,73 +254,83 @@ _bfd_dummy_target (bfd *ignore_abfd ATTRIBUTE_UNUSED) /* Allocate memory using malloc. */ +#ifndef SSIZE_MAX +#define SSIZE_MAX ((size_t) -1 >> 1) +#endif + void * bfd_malloc (bfd_size_type size) { void *ptr; + size_t sz = (size_t) size; - if (size != (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; } - ptr = malloc ((size_t) size); - if (ptr == NULL && (size_t) size != 0) + ptr = malloc (sz); + if (ptr == NULL && sz != 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; + size_t sz = (size_t) size; - if (size != (size_t) size) + if (ptr == NULL) + return bfd_malloc (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) - ret = malloc ((size_t) size); - else - ret = realloc (ptr, (size_t) size); + ret = realloc (ptr, sz); - if (ret == NULL && (size_t) size != 0) + if (ret == NULL && sz != 0) bfd_set_error (bfd_error_no_memory); return ret; } -/* Allocate memory using malloc and clear it. */ +/* Reallocate memory using realloc. + If this fails the pointer is freed before returning. */ void * -bfd_zmalloc (bfd_size_type size) +bfd_realloc_or_free (void *ptr, bfd_size_type size) { - void *ptr; + void *ret = bfd_realloc (ptr, size); - if (size != (size_t) size) - { - bfd_set_error (bfd_error_no_memory); - return NULL; - } + if (ret == NULL) + free (ptr); - ptr = malloc ((size_t) size); + return ret; +} - if ((size_t) size != 0) - { - if (ptr == NULL) - bfd_set_error (bfd_error_no_memory); - else - memset (ptr, 0, (size_t) size); - } +/* Allocate memory using malloc and clear it. */ + +void * +bfd_zmalloc (bfd_size_type size) +{ + void *ptr = bfd_malloc (size); + + if (ptr != NULL && size > 0) + memset (ptr, 0, (size_t) size); return ptr; } + /* INTERNAL_FUNCTION bfd_write_bigendian_4byte_int @@ -235,8 +361,8 @@ bfd_write_bigendian_4byte_int (bfd *abfd, unsigned int i) /* 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 @@ -270,9 +396,9 @@ DESCRIPTION .#define bfd_put_signed_8 \ . bfd_put_8 .#define bfd_get_8(abfd, ptr) \ -. (*(unsigned char *) (ptr) & 0xff) +. ((bfd_vma) *(const unsigned char *) (ptr) & 0xff) .#define bfd_get_signed_8(abfd, ptr) \ -. (((*(unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80) +. ((((bfd_signed_vma) *(const unsigned char *) (ptr) & 0xff) ^ 0x80) - 0x80) . .#define bfd_put_16(abfd, val, ptr) \ . BFD_SEND (abfd, bfd_putx16, ((val),(ptr))) @@ -283,6 +409,20 @@ DESCRIPTION .#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 \ @@ -302,7 +442,7 @@ DESCRIPTION . BFD_SEND (abfd, bfd_getx_signed_64, (ptr)) . .#define bfd_get(bits, abfd, ptr) \ -. ((bits) == 8 ? (bfd_vma) bfd_get_8 (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) \ @@ -310,9 +450,9 @@ DESCRIPTION . .#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) \ +. : (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)) . */ @@ -389,44 +529,43 @@ DESCRIPTION .*/ /* 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 COERCE16(x) (((bfd_vma) (x) ^ 0x8000) - 0x8000) +#define COERCE32(x) (((bfd_vma) (x) ^ 0x80000000) - 0x80000000) #define COERCE64(x) \ - (((bfd_int64_t) (x) ^ EIGHT_GAZILLION) - EIGHT_GAZILLION) + (((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 = 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 = 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 = 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 = 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 = p; + bfd_byte *addr = (bfd_byte *) p; addr[0] = (data >> 8) & 0xff; addr[1] = data & 0xff; } @@ -434,15 +573,57 @@ bfd_putb16 (bfd_vma data, void *p) void bfd_putl16 (bfd_vma data, void *p) { - bfd_byte *addr = p; + bfd_byte *addr = (bfd_byte *) p; + addr[0] = data & 0xff; + addr[1] = (data >> 8) & 0xff; +} + +void +bfd_putb24 (bfd_vma data, void *p) +{ + bfd_byte *addr = (bfd_byte *) p; + addr[0] = (data >> 16) & 0xff; + addr[1] = (data >> 8) & 0xff; + addr[2] = data & 0xff; +} + +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) +{ + 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 = p; + const bfd_byte *addr = (const bfd_byte *) p; unsigned long v; v = (unsigned long) addr[0] << 24; @@ -455,7 +636,7 @@ bfd_getb32 (const void *p) bfd_vma bfd_getl32 (const void *p) { - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; unsigned long v; v = (unsigned long) addr[0]; @@ -468,7 +649,7 @@ bfd_getl32 (const void *p) bfd_signed_vma bfd_getb_signed_32 (const void *p) { - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; unsigned long v; v = (unsigned long) addr[0] << 24; @@ -481,7 +662,7 @@ bfd_getb_signed_32 (const void *p) bfd_signed_vma bfd_getl_signed_32 (const void *p) { - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; unsigned long v; v = (unsigned long) addr[0]; @@ -495,7 +676,7 @@ bfd_uint64_t bfd_getb64 (const void *p ATTRIBUTE_UNUSED) { #ifdef BFD_HOST_64_BIT - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; bfd_uint64_t v; v = addr[0]; v <<= 8; @@ -518,7 +699,7 @@ bfd_uint64_t bfd_getl64 (const void *p ATTRIBUTE_UNUSED) { #ifdef BFD_HOST_64_BIT - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; bfd_uint64_t v; v = addr[7]; v <<= 8; @@ -542,7 +723,7 @@ bfd_int64_t bfd_getb_signed_64 (const void *p ATTRIBUTE_UNUSED) { #ifdef BFD_HOST_64_BIT - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; bfd_uint64_t v; v = addr[0]; v <<= 8; @@ -565,7 +746,7 @@ bfd_int64_t bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED) { #ifdef BFD_HOST_64_BIT - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; bfd_uint64_t v; v = addr[7]; v <<= 8; @@ -587,7 +768,7 @@ bfd_getl_signed_64 (const void *p ATTRIBUTE_UNUSED) void bfd_putb32 (bfd_vma data, void *p) { - bfd_byte *addr = p; + bfd_byte *addr = (bfd_byte *) p; addr[0] = (data >> 24) & 0xff; addr[1] = (data >> 16) & 0xff; addr[2] = (data >> 8) & 0xff; @@ -597,7 +778,7 @@ bfd_putb32 (bfd_vma data, void *p) void bfd_putl32 (bfd_vma data, void *p) { - bfd_byte *addr = p; + bfd_byte *addr = (bfd_byte *) p; addr[0] = data & 0xff; addr[1] = (data >> 8) & 0xff; addr[2] = (data >> 16) & 0xff; @@ -608,7 +789,7 @@ void bfd_putb64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) { #ifdef BFD_HOST_64_BIT - bfd_byte *addr = p; + bfd_byte *addr = (bfd_byte *) p; addr[0] = (data >> (7*8)) & 0xff; addr[1] = (data >> (6*8)) & 0xff; addr[2] = (data >> (5*8)) & 0xff; @@ -626,7 +807,7 @@ void bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) { #ifdef BFD_HOST_64_BIT - bfd_byte *addr = p; + bfd_byte *addr = (bfd_byte *) p; addr[7] = (data >> (7*8)) & 0xff; addr[6] = (data >> (6*8)) & 0xff; addr[5] = (data >> (5*8)) & 0xff; @@ -643,7 +824,7 @@ bfd_putl64 (bfd_uint64_t data ATTRIBUTE_UNUSED, void *p ATTRIBUTE_UNUSED) void bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p) { - bfd_byte *addr = p; + bfd_byte *addr = (bfd_byte *) p; int i; int bytes; @@ -653,9 +834,9 @@ bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p) bytes = bits / 8; for (i = 0; i < bytes; i++) { - int index = big_p ? bytes - i - 1 : i; + int addr_index = big_p ? bytes - i - 1 : i; - addr[index] = data & 0xff; + addr[addr_index] = data & 0xff; data >>= 8; } } @@ -663,7 +844,7 @@ bfd_put_bits (bfd_uint64_t data, void *p, int bits, bfd_boolean big_p) bfd_uint64_t bfd_get_bits (const void *p, int bits, bfd_boolean big_p) { - const bfd_byte *addr = p; + const bfd_byte *addr = (const bfd_byte *) p; bfd_uint64_t data; int i; int bytes; @@ -675,9 +856,9 @@ bfd_get_bits (const void *p, int bits, bfd_boolean big_p) bytes = bits / 8; for (i = 0; i < bytes; i++) { - int index = big_p ? i : bytes - i - 1; + int addr_index = big_p ? i : bytes - i - 1; - data = (data << 8) | addr[index]; + data = (data << 8) | addr[addr_index]; } return data; @@ -696,8 +877,31 @@ _bfd_generic_get_section_contents (bfd *abfd, if (count == 0) return TRUE; - sz = section->rawsize ? section->rawsize : section->size; - if (offset + count > sz) + 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; @@ -748,8 +952,16 @@ _bfd_generic_get_section_contents_in_window w->data = w->i->data; return bfd_get_section_contents (abfd, section, w->data, offset, count); } - sz = section->rawsize ? section->rawsize : section->size; - if (offset + count > sz + 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; @@ -797,8 +1009,12 @@ bfd_log2 (bfd_vma x) { unsigned int result = 0; - while ((x = (x >> 1)) != 0) + if (x <= 1) + return result; + --x; + do ++result; + while ((x >>= 1) != 0); return result; } @@ -810,53 +1026,30 @@ bfd_generic_is_local_label_name (bfd *abfd, const char *name) 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) +_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; } } @@ -864,13 +1057,13 @@ warn_deprecated (const char *what, /* Helper function for reading uleb128 encoded data. */ bfd_vma -read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED, - char *buf, - unsigned int *bytes_read_ptr) +_bfd_read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED, + bfd_byte *buf, + unsigned int *bytes_read_ptr) { bfd_vma result; unsigned int num_read; - int shift; + unsigned int shift; unsigned char byte; result = 0; @@ -878,7 +1071,7 @@ read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED, num_read = 0; do { - byte = bfd_get_8 (abfd, (bfd_byte *) buf); + byte = bfd_get_8 (abfd, buf); buf++; num_read++; result |= (((bfd_vma) byte & 0x7f) << shift); @@ -889,16 +1082,55 @@ read_unsigned_leb128 (bfd *abfd ATTRIBUTE_UNUSED, 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 -read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED, - char *buf, - unsigned int * bytes_read_ptr) +_bfd_read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED, + bfd_byte *buf, + unsigned int *bytes_read_ptr) { bfd_vma result; - unsigned shift; - int num_read; + unsigned int shift; + unsigned int num_read; unsigned char byte; result = 0; @@ -906,15 +1138,25 @@ read_signed_leb128 (bfd *abfd ATTRIBUTE_UNUSED, num_read = 0; do { - byte = bfd_get_8 (abfd, (bfd_byte *) buf); + 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)) + 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; +}