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Implement a new BFD API function: bfd_is_target_special_symbol. Use this in nm

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and objdump to skip the displaying of ARM Mapping symbols unless specifically
requested.
This commit is contained in:
Nick Clifton 2004-10-08 14:54:04 +00:00
parent d2b2c203e1
commit 3c9458e953
36 changed files with 175 additions and 6 deletions
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38
bfd/ChangeLog
View file

@ -1,3 +1,41 @@
2004-10-08 Nick Clifton <nickc@redhat.com>
* configure.in: (AM_INIT_AUTOMAKE): Set version to 2.15.93.
* configure: Regenerate.
* bfd-in2.h: Regenerate.
* syms.c (bfd_is_target_special_symbol): New interface function.
Returns true when a symbol should be considered to be special.
* targets.h (bfd_target): Include bfd_is_target_special_symbol in
the symbol jump table.
* elf32-arm.h (elf32_arm_is_target_special_symbol): New function.
Return true iff the symbol is a mapping symbol.
(bfd_elf32_bfd_is_target_special_symbol): Define.
* elfxx-target.h: Provide a default definition for
bfd_is_target_special_symbol.
* aout-target.h: Likewise.
* aout-tic30.c: Likewise.
* binary.c: LIkewise.
* coffcode.h: Likewise.
* i386msdos.c: Likewise.
* ieee.c: Likewise.
* ihex.c: LIkewise.
* libaout.h: Likewise.
* libbfd-in.h: Likewise
* libecoff.h: Likewise.
* mach-o.c: Likewise.
* mmo.c: Likewise.
* nlm-target.h: Likewise.
* oasys.c: Likewise.
* pef.c: Likewise.
* ppcboot.c: Likewise.
* srec.c: Likewise.
* tekhex.c: Likewise.
* versados.c: Likewise.
* vms.c: Likewise.
* xcoff-target.h: Likewise.
* xsym.c: Likewise.
* libbfd.h: Regenerate.
2004-10-08 Daniel Jacobowitz <dan@debian.org>
* config.bfd: Include 64-bit support for i[3-7]86-*-solaris2*.

4
bfd/aout-target.h
View file

@ -579,6 +579,10 @@ MY_bfd_final_link (abfd, info)
#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name
#endif
#ifndef MY_bfd_is_target_special_symbol
#define MY_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#endif
#ifndef MY_bfd_free_cached_info
#define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info)
#endif

5
bfd/aout-tic30.c
View file

@ -1036,6 +1036,11 @@ tic30_aout_set_arch_mach (abfd, arch, machine)
#define MY_bfd_is_local_label_name bfd_generic_is_local_label_name
#endif
#ifndef MY_bfd_is_target_special_symbol
#define MY_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#endif
#ifndef MY_bfd_free_cached_info
#define MY_bfd_free_cached_info NAME(aout,bfd_free_cached_info)
#endif

8
bfd/bfd-in2.h
View file

@ -3828,6 +3828,11 @@ bfd_boolean bfd_is_local_label_name (bfd *abfd, const char *name);
#define bfd_is_local_label_name(abfd, name) \
BFD_SEND (abfd, _bfd_is_local_label_name, (abfd, name))
bfd_boolean bfd_is_target_special_symbol (bfd *abfd, asymbol *sym);
#define bfd_is_target_special_symbol(abfd, sym) \
BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym))
#define bfd_canonicalize_symtab(abfd, location) \
BFD_SEND (abfd, _bfd_canonicalize_symtab, (abfd, location))
@ -4443,6 +4448,7 @@ typedef struct bfd_target
NAME##_print_symbol, \
NAME##_get_symbol_info, \
NAME##_bfd_is_local_label_name, \
NAME##_bfd_is_target_special_symbol, \
NAME##_get_lineno, \
NAME##_find_nearest_line, \
NAME##_bfd_make_debug_symbol, \
@ -4461,7 +4467,7 @@ typedef struct bfd_target
(bfd *, struct bfd_symbol *, symbol_info *);
#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
alent * (*_get_lineno) (bfd *, struct bfd_symbol *);
bfd_boolean (*_bfd_find_nearest_line)
(bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,

1
bfd/binary.c
View file

@ -234,6 +234,7 @@ binary_get_symbol_info (ignore_abfd, symbol, ret)
bfd_symbol_info (symbol, ret);
}
#define binary_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define binary_bfd_is_local_label_name bfd_generic_is_local_label_name
#define binary_get_lineno _bfd_nosymbols_get_lineno
#define binary_find_nearest_line _bfd_nosymbols_find_nearest_line

4
bfd/coffcode.h
View file

@ -5547,6 +5547,10 @@ static const bfd_coff_backend_data ticoff1_swap_table =
#define coff_bfd_is_local_label_name _bfd_coff_is_local_label_name
#endif
#ifndef coff_bfd_is_target_special_symbol
#define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#endif
#ifndef coff_read_minisymbols
#define coff_read_minisymbols _bfd_generic_read_minisymbols
#endif

2
bfd/configure vendored
View file

@ -2834,7 +2834,7 @@ fi
# Define the identity of the package.
PACKAGE=bfd
VERSION=2.15.92
VERSION=2.15.93
cat >>confdefs.h <<_ACEOF

2
bfd/configure.in
View file

@ -8,7 +8,7 @@ AC_CONFIG_SRCDIR([libbfd.c])
AC_CANONICAL_TARGET
AC_ISC_POSIX
AM_INIT_AUTOMAKE(bfd, 2.15.92)
AM_INIT_AUTOMAKE(bfd, 2.15.93)
dnl These must be called before AM_PROG_LIBTOOL, because it may want
dnl to call AC_CHECK_PROG.

12
bfd/elf32-arm.h
View file

@ -25,7 +25,7 @@
typedef unsigned long int insn32;
typedef unsigned short int insn16;
/* In leiu of proper flags, assume all EABIv3 objects are interworkable. */
/* In lieu of proper flags, assume all EABIv3 objects are interworkable. */
#define INTERWORK_FLAG(abfd) \
(EF_ARM_EABI_VERSION (elf_elfheader (abfd)->e_flags) == EF_ARM_EABI_VER3 \
|| (elf_elfheader (abfd)->e_flags & EF_ARM_INTERWORK))
@ -2328,6 +2328,7 @@ elf32_arm_object_p (bfd *abfd)
}
/* Function to keep ARM specific flags in the ELF header. */
static bfd_boolean
elf32_arm_set_private_flags (bfd *abfd, flagword flags)
{
@ -3163,6 +3164,14 @@ is_arm_mapping_symbol_name (const char * name)
&& (name[2] == 0);
}
/* Treat mapping symbols as special target symbols. */
static bfd_boolean
elf32_arm_is_target_special_symbol (bfd * abfd ATTRIBUTE_UNUSED, asymbol * sym)
{
return is_arm_mapping_symbol_name (sym->name);
}
/* This is a copy of elf_find_function() from elf.c except that
ARM mapping symbols are ignored when looking for function names
and STT_ARM_TFUNC is considered to a function type. */
@ -4462,6 +4471,7 @@ elf32_arm_write_section (bfd *output_bfd ATTRIBUTE_UNUSED, asection *sec,
#define bfd_elf32_bfd_reloc_type_lookup elf32_arm_reloc_type_lookup
#define bfd_elf32_find_nearest_line elf32_arm_find_nearest_line
#define bfd_elf32_new_section_hook elf32_arm_new_section_hook
#define bfd_elf32_bfd_is_target_special_symbol elf32_arm_is_target_special_symbol
#define elf_backend_get_symbol_type elf32_arm_get_symbol_type
#define elf_backend_gc_mark_hook elf32_arm_gc_mark_hook

4
bfd/elfxx-target.h
View file

@ -188,6 +188,10 @@
#ifndef bfd_elfNN_bfd_is_local_label_name
#define bfd_elfNN_bfd_is_local_label_name _bfd_elf_is_local_label_name
#endif
#ifndef bfd_elfNN_bfd_is_target_special_symbol
#define bfd_elfNN_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#endif
#ifndef bfd_elfNN_get_dynamic_reloc_upper_bound
#define bfd_elfNN_get_dynamic_reloc_upper_bound \

1
bfd/i386msdos.c
View file

@ -193,6 +193,7 @@ msdos_set_section_contents (abfd, section, location, offset, count)
#define msdos_get_symbol_info _bfd_nosymbols_get_symbol_info
#define msdos_find_nearest_line _bfd_nosymbols_find_nearest_line
#define msdos_get_lineno _bfd_nosymbols_get_lineno
#define msdos_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define msdos_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define msdos_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define msdos_read_minisymbols _bfd_nosymbols_read_minisymbols

2
bfd/ieee.c
View file

@ -4018,6 +4018,8 @@ ieee_bfd_debug_info_accumulate (abfd, section)
#define ieee_update_armap_timestamp bfd_true
#define ieee_get_elt_at_index _bfd_generic_get_elt_at_index
#define ieee_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define ieee_bfd_is_local_label_name bfd_generic_is_local_label_name
#define ieee_get_lineno _bfd_nosymbols_get_lineno
#define ieee_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol

1
bfd/ihex.c
View file

@ -968,6 +968,7 @@ ihex_sizeof_headers (abfd, exec)
#define ihex_make_empty_symbol _bfd_generic_make_empty_symbol
#define ihex_print_symbol _bfd_nosymbols_print_symbol
#define ihex_get_symbol_info _bfd_nosymbols_get_symbol_info
#define ihex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define ihex_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define ihex_get_lineno _bfd_nosymbols_get_lineno
#define ihex_find_nearest_line _bfd_nosymbols_find_nearest_line

5
bfd/libaout.h
View file

@ -606,6 +606,11 @@ extern bfd_boolean NAME(aout,bfd_free_cached_info)
#define aout_32_bfd_is_local_label_name bfd_generic_is_local_label_name
#endif
#ifndef aout_32_bfd_is_target_special_symbol
#define aout_32_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#endif
#ifndef WRITE_HEADERS
#define WRITE_HEADERS(abfd, execp) \
{ \

2
bfd/libbfd-in.h
View file

@ -299,6 +299,8 @@ extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
#define _bfd_nosymbols_bfd_is_local_label_name \
((bfd_boolean (*) (bfd *, const char *)) bfd_false)
#define _bfd_nosymbols_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define _bfd_nosymbols_get_lineno \
((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
#define _bfd_nosymbols_find_nearest_line \

2
bfd/libbfd.h
View file

@ -304,6 +304,8 @@ extern bfd_boolean _bfd_archive_coff_construct_extended_name_table
((void (*) (bfd *, asymbol *, symbol_info *)) bfd_void)
#define _bfd_nosymbols_bfd_is_local_label_name \
((bfd_boolean (*) (bfd *, const char *)) bfd_false)
#define _bfd_nosymbols_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define _bfd_nosymbols_get_lineno \
((alent *(*) (bfd *, asymbol *)) bfd_nullvoidptr)
#define _bfd_nosymbols_find_nearest_line \

2
bfd/libecoff.h
View file

@ -272,6 +272,8 @@ extern bfd_boolean _bfd_ecoff_write_armap
#define _bfd_ecoff_get_elt_at_index _bfd_generic_get_elt_at_index
#define _bfd_ecoff_generic_stat_arch_elt bfd_generic_stat_arch_elt
#define _bfd_ecoff_update_armap_timestamp bfd_true
#define _bfd_ecoff_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
extern long _bfd_ecoff_get_symtab_upper_bound PARAMS ((bfd *abfd));
extern long _bfd_ecoff_canonicalize_symtab PARAMS ((bfd *abfd, asymbol **alocation));

2
bfd/mach-o.c
View file

@ -44,6 +44,8 @@
#define bfd_mach_o_new_section_hook _bfd_generic_new_section_hook
#define bfd_mach_o_get_section_contents_in_window _bfd_generic_get_section_contents_in_window
#define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define bfd_mach_o_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define bfd_mach_o_bfd_is_local_label_name _bfd_nosymbols_bfd_is_local_label_name
#define bfd_mach_o_get_lineno _bfd_nosymbols_get_lineno
#define bfd_mach_o_find_nearest_line _bfd_nosymbols_find_nearest_line
#define bfd_mach_o_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol

2
bfd/mmo.c
View file

@ -3255,6 +3255,8 @@ mmo_canonicalize_reloc (abfd, section, relptr, symbols)
/* Perhaps we need to adjust this one; mmo labels (originally) without a
leading ':' might more appropriately be called local. */
#define mmo_bfd_is_local_label_name bfd_generic_is_local_label_name
#define mmo_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
/* Is this one really used or defined by anyone? */
#define mmo_get_lineno _bfd_nosymbols_get_lineno

2
bfd/nlm-target.h
View file

@ -26,6 +26,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define nlm_print_symbol nlmNAME(print_symbol)
#define nlm_get_symbol_info nlmNAME(get_symbol_info)
#define nlm_bfd_is_local_label_name bfd_generic_is_local_label_name
#define nlm_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define nlm_get_lineno _bfd_nosymbols_get_lineno
#define nlm_find_nearest_line _bfd_nosymbols_find_nearest_line
#define nlm_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol

1
bfd/oasys.c
View file

@ -1489,6 +1489,7 @@ oasys_sizeof_headers (abfd, exec)
#define oasys_update_armap_timestamp bfd_true
#define oasys_bfd_is_local_label_name bfd_generic_is_local_label_name
#define oasys_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define oasys_get_lineno _bfd_nosymbols_get_lineno
#define oasys_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
#define oasys_read_minisymbols _bfd_generic_read_minisymbols

1
bfd/pef.c
View file

@ -37,6 +37,7 @@
#define bfd_pef_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define bfd_pef_new_section_hook _bfd_generic_new_section_hook
#define bfd_pef_bfd_is_local_label_name bfd_generic_is_local_label_name
#define bfd_pef_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define bfd_pef_get_lineno _bfd_nosymbols_get_lineno
#define bfd_pef_find_nearest_line _bfd_nosymbols_find_nearest_line
#define bfd_pef_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol

2
bfd/ppcboot.c
View file

@ -345,6 +345,8 @@ ppcboot_get_symbol_info (ignore_abfd, symbol, ret)
bfd_symbol_info (symbol, ret);
}
#define ppcboot_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define ppcboot_bfd_is_local_label_name bfd_generic_is_local_label_name
#define ppcboot_get_lineno _bfd_nosymbols_get_lineno
#define ppcboot_find_nearest_line _bfd_nosymbols_find_nearest_line

1
bfd/srec.c
View file

@ -1262,6 +1262,7 @@ srec_print_symbol (abfd, afile, symbol, how)
#define srec_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define srec_new_section_hook _bfd_generic_new_section_hook
#define srec_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define srec_bfd_is_local_label_name bfd_generic_is_local_label_name
#define srec_get_lineno _bfd_nosymbols_get_lineno
#define srec_find_nearest_line _bfd_nosymbols_find_nearest_line

17
bfd/syms.c
View file

@ -380,6 +380,23 @@ DESCRIPTION
.
*/
/*
FUNCTION
bfd_is_target_special_symbol
SYNOPSIS
bfd_boolean bfd_is_target_special_symbol (bfd *abfd, asymbol *sym);
DESCRIPTION
Return TRUE iff a symbol @var{sym} in the BFD @var{abfd} is something
special to the particular target represented by the BFD. Such symbols
should normally not be mentioned to the user.
.#define bfd_is_target_special_symbol(abfd, sym) \
. BFD_SEND (abfd, _bfd_is_target_special_symbol, (abfd, sym))
.
*/
/*
FUNCTION
bfd_canonicalize_symtab

3
bfd/targets.c
View file

@ -338,6 +338,7 @@ BFD_JUMP_TABLE macros.
. NAME##_print_symbol, \
. NAME##_get_symbol_info, \
. NAME##_bfd_is_local_label_name, \
. NAME##_bfd_is_target_special_symbol, \
. NAME##_get_lineno, \
. NAME##_find_nearest_line, \
. NAME##_bfd_make_debug_symbol, \
@ -356,7 +357,7 @@ BFD_JUMP_TABLE macros.
. (bfd *, struct bfd_symbol *, symbol_info *);
.#define bfd_get_symbol_info(b,p,e) BFD_SEND (b, _bfd_get_symbol_info, (b,p,e))
. bfd_boolean (*_bfd_is_local_label_name) (bfd *, const char *);
.
. bfd_boolean (*_bfd_is_target_special_symbol) (bfd *, asymbol *);
. alent * (*_get_lineno) (bfd *, struct bfd_symbol *);
. bfd_boolean (*_bfd_find_nearest_line)
. (bfd *, struct bfd_section *, struct bfd_symbol **, bfd_vma,

1
bfd/tekhex.c
View file

@ -989,6 +989,7 @@ tekhex_print_symbol (abfd, filep, symbol, how)
#define tekhex_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define tekhex_new_section_hook _bfd_generic_new_section_hook
#define tekhex_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define tekhex_bfd_is_local_label_name bfd_generic_is_local_label_name
#define tekhex_get_lineno _bfd_nosymbols_get_lineno
#define tekhex_find_nearest_line _bfd_nosymbols_find_nearest_line

2
bfd/versados.c
View file

@ -855,6 +855,8 @@ versados_canonicalize_reloc (abfd, section, relptr, symbols)
#define versados_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define versados_new_section_hook _bfd_generic_new_section_hook
#define versados_bfd_is_target_special_symbol \
((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define versados_bfd_is_local_label_name bfd_generic_is_local_label_name
#define versados_get_lineno _bfd_nosymbols_get_lineno
#define versados_find_nearest_line _bfd_nosymbols_find_nearest_line

1
bfd/vms.c
View file

@ -164,6 +164,7 @@ static bfd_boolean vms_bfd_merge_private_bfd_data
static bfd_boolean vms_bfd_set_private_flags
PARAMS ((bfd *abfd, flagword flags));
#define vms_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define vms_make_empty_symbol _bfd_generic_make_empty_symbol
#define vms_bfd_link_just_syms _bfd_generic_link_just_syms
#define vms_bfd_is_group_section bfd_generic_is_group_section

1
bfd/xcoff-target.h
View file

@ -43,6 +43,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#define coff_mkobject _bfd_xcoff_mkobject
#define coff_bfd_copy_private_bfd_data _bfd_xcoff_copy_private_bfd_data
#define coff_bfd_is_local_label_name _bfd_xcoff_is_local_label_name
#define coff_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define coff_bfd_reloc_type_lookup _bfd_xcoff_reloc_type_lookup
#define coff_relocate_section _bfd_ppc_xcoff_relocate_section

1
bfd/xsym.c
View file

@ -27,6 +27,7 @@
#define bfd_sym_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
#define bfd_sym_new_section_hook _bfd_generic_new_section_hook
#define bfd_sym_bfd_is_local_label_name bfd_generic_is_local_label_name
#define bfd_sym_bfd_is_target_special_symbol ((bfd_boolean (*) (bfd *, asymbol *)) bfd_false)
#define bfd_sym_get_lineno _bfd_nosymbols_get_lineno
#define bfd_sym_find_nearest_line _bfd_nosymbols_find_nearest_line
#define bfd_sym_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol

12
binutils/ChangeLog
View file

@ -1,3 +1,15 @@
2004-10-08 Nick Clifton <nickc@redhat.com>
* nm.c: Add a new switch --special-syms which, if enabled, will
include the ARM Mapping symbols in nm's output.
(usage): Mention the switch.
(filter_symbols): Handle the switch.
* objdump.c: Add a similar switch.
(usage): Mention the switch.
(dump_symbols): Handle the switch.
* doc/binutils.texi: Document the new switches.
* NEWS: Mention the new switches.
2004-10-08 Daniel Jacobowitz <dan@debian.org>
* readelf.c (get_x86_64_section_type_name): New function.

6
binutils/NEWS
View file

@ -1,5 +1,11 @@
-*- text -*-
* nm and objdump now have a switch "--special-syms" to enable the displaying of
symbols which the target considers to be special. By default these symbols
are no longer displayed. Currently the only special symbols are the Mapping
symbols used by the ARM port to mark transitions between text and data and
between ARM and THUMB code.
* dlltool has a switch "--ext-prefix-alias <prefix>" to generate additional
import and export symbols with <preifx> prepended to them.

16
binutils/doc/binutils.texi
View file

@ -663,7 +663,7 @@ The @sc{gnu} linker @command{ld} is now described in a separate manual.
nm [@option{-a}|@option{--debug-syms}] [@option{-g}|@option{--extern-only}]
[@option{-B}] [@option{-C}|@option{--demangle}[=@var{style}]] [@option{-D}|@option{--dynamic}]
[@option{-S}|@option{--print-size}] [@option{-s}|@option{--print-armap}]
[@option{-A}|@option{-o}|@option{--print-file-name}]
[@option{-A}|@option{-o}|@option{--print-file-name}][@option{--special-syms}]
[@option{-n}|@option{-v}|@option{--numeric-sort}] [@option{-p}|@option{--no-sort}]
[@option{-r}|@option{--reverse-sort}] [@option{--size-sort}] [@option{-u}|@option{--undefined-only}]
[@option{-t} @var{radix}|@option{--radix=}@var{radix}] [@option{-P}|@option{--portability}]
@ -879,6 +879,14 @@ value. If the @code{bsd} output format is used the size of the symbol
is printed, rather than the value, and @samp{-S} must be used in order
both size and value to be printed.
@item --special-syms
Display symbols which have a target-specific special meaning. These
symbols are usually used by the target for some special processing and
are not normally helpful when included included in the normal symbol
lists. For example for ARM targets this option would skip the mapping
symbols used to mark transistions between ARM code, THUMB code and
data.
@item -t @var{radix}
@itemx --radix=@var{radix}
Use @var{radix} as the radix for printing the symbol values. It must be
@ -1495,6 +1503,7 @@ objdump [@option{-a}|@option{--archive-headers}]
[@option{--prefix-addresses}]
[@option{--[no-]show-raw-insn}]
[@option{--adjust-vma=}@var{offset}]
[@option{--special-syms}]
[@option{-V}|@option{--version}]
[@option{-H}|@option{--help}]
@var{objfile}@dots{}
@ -1837,6 +1846,11 @@ meaningful for dynamic objects, such as certain types of shared
libraries. This is similar to the information provided by the @samp{nm}
program when given the @option{-D} (@option{--dynamic}) option.
@item --special-syms
When displaying symbols include those which the target considers to be
special in some way and which would not normally be of interest to the
user.
@item -V
@itemx --version
Print the version number of @command{objdump} and exit.

8
binutils/nm.c
View file

@ -152,6 +152,7 @@ static int show_version = 0; /* Show the version number. */
static int show_stats = 0; /* Show statistics. */
static int show_synthetic = 0; /* Display synthesized symbols too. */
static int line_numbers = 0; /* Print line numbers for symbols. */
static int allow_special_symbols = 0; /* Allow special symbols. */
/* When to print the names of files. Not mutually exclusive in SYSV format. */
static int filename_per_file = 0; /* Once per file, on its own line. */
@ -205,6 +206,7 @@ static struct option long_options[] =
{"radix", required_argument, 0, 't'},
{"reverse-sort", no_argument, &reverse_sort, 1},
{"size-sort", no_argument, &sort_by_size, 1},
{"special-syms", no_argument, &allow_special_symbols, 1},
{"stats", no_argument, &show_stats, 1},
{"synthetic", no_argument, &show_synthetic, 1},
{"target", required_argument, 0, OPTION_TARGET},
@ -246,6 +248,7 @@ usage (FILE *stream, int status)
-S, --print-size Print size of defined symbols\n\
-s, --print-armap Include index for symbols from archive members\n\
--size-sort Sort symbols by size\n\
--skip-special Ignore special symbols\n\
--synthetic Display synthetic symbols as well\n\
-t, --radix=RADIX Use RADIX for printing symbol values\n\
--target=BFDNAME Specify the target object format as BFDNAME\n\
@ -446,6 +449,11 @@ filter_symbols (bfd *abfd, bfd_boolean dynamic, void *minisyms,
keep = 0;
}
if (keep
&& bfd_is_target_special_symbol (abfd, sym)
&& ! allow_special_symbols)
keep = 0;
if (keep)
{
memcpy (to, from, size);

7
binutils/objdump.c
View file

@ -102,6 +102,7 @@ static bfd_vma start_address = (bfd_vma) -1; /* --start-address */
static bfd_vma stop_address = (bfd_vma) -1; /* --stop-address */
static int dump_debugging; /* --debugging */
static int dump_debugging_tags; /* --debugging-tags */
static int dump_special_syms = 0; /* --special-syms */
static bfd_vma adjust_section_vma = 0; /* --adjust-vma */
static int file_start_context = 0; /* --file-start-context */
@ -217,6 +218,7 @@ usage (FILE *stream, int status)
--prefix-addresses Print complete address alongside disassembly\n\
--[no-]show-raw-insn Display hex alongside symbolic disassembly\n\
--adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\
--special-syms Include special symbols in symbol dumps\n\
\n"));
list_supported_targets (program_name, stream);
list_supported_architectures (program_name, stream);
@ -268,6 +270,7 @@ static struct option long_options[]=
{"section-headers", no_argument, NULL, 'h'},
{"show-raw-insn", no_argument, &show_raw_insn, 1},
{"source", no_argument, NULL, 'S'},
{"special-syms", no_argument, &dump_special_syms, 1},
{"include", required_argument, NULL, 'I'},
{"stabs", no_argument, NULL, 'G'},
{"start-address", required_argument, NULL, OPTION_START_ADDRESS},
@ -2283,6 +2286,10 @@ dump_symbols (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean dynamic)
printf (_("could not determine the type of the %ld'th symbol"),
count);
else if (! dump_special_syms
&& bfd_is_target_special_symbol (cur_bfd, *current))
continue;
else
{
const char *name = (*current)->name;