diff options
Diffstat (limited to 'binutils')
| -rw-r--r-- | binutils/ChangeLog | 12 | ||||
| -rw-r--r-- | binutils/NEWS | 6 | ||||
| -rw-r--r-- | binutils/doc/binutils.texi | 16 | ||||
| -rw-r--r-- | binutils/nm.c | 8 | ||||
| -rw-r--r-- | binutils/objdump.c | 7 |
5 files changed, 48 insertions, 1 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 12196c6..ab1c857 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -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. diff --git a/binutils/NEWS b/binutils/NEWS index a753312..f7c2dd7 100644 --- a/binutils/NEWS +++ b/binutils/NEWS @@ -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. diff --git a/binutils/doc/binutils.texi b/binutils/doc/binutils.texi index 0a80a0d..97a6538 100644 --- a/binutils/doc/binutils.texi +++ b/binutils/doc/binutils.texi @@ -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. diff --git a/binutils/nm.c b/binutils/nm.c index be89cec..c35f7c8 100644 --- a/binutils/nm.c +++ b/binutils/nm.c @@ -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); diff --git a/binutils/objdump.c b/binutils/objdump.c index e56bf36..73af429 100644 --- a/binutils/objdump.c +++ b/binutils/objdump.c @@ -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; |