X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=binutils%2Fobjdump.c;h=76ca2db726e0beadd82c36e18a0ddfca0ae7cc26;hb=dbb7c4414b09c017dafc73b63de13640f19c5735;hp=8e7d24d2900c05661581db72426e055699d1f63c;hpb=b129eb0e566d53a2500d505cbb80e8ad4ad6f981;p=deliverable%2Fbinutils-gdb.git diff --git a/binutils/objdump.c b/binutils/objdump.c index 8e7d24d290..76ca2db726 100644 --- a/binutils/objdump.c +++ b/binutils/objdump.c @@ -1,7 +1,7 @@ /* objdump.c -- dump information about an object file. Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 - Free Software Foundation, Inc. + 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, + 2012 Free Software Foundation, Inc. This file is part of GNU Binutils. @@ -55,6 +55,7 @@ #include "elf-bfd.h" #include "progress.h" #include "bucomm.h" +#include "elfcomm.h" #include "dwarf.h" #include "getopt.h" #include "safe-ctype.h" @@ -64,13 +65,12 @@ #include "filenames.h" #include "debug.h" #include "budbg.h" +#include "objdump.h" #ifdef HAVE_MMAP #include #endif -#include - /* Internal headers for the ELF .stab-dump code - sorry. */ #define BYTES_IN_WORD 32 #include "aout/aout64.h" @@ -92,6 +92,7 @@ static int dump_reloc_info; /* -r */ static int dump_dynamic_reloc_info; /* -R */ static int dump_ar_hdrs; /* -a */ static int dump_private_headers; /* -p */ +static char *dump_private_options; /* -P */ static int prefix_addresses; /* --prefix-addresses */ static int with_line_numbers; /* -l */ static bfd_boolean with_source_code; /* -S */ @@ -109,6 +110,7 @@ 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 suppress_bfd_header; 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 */ @@ -183,6 +185,13 @@ static char *strtab; static bfd_size_type stabstr_size; static bfd_boolean is_relocatable = FALSE; + +/* Handlers for -P/--private. */ +static const struct objdump_private_desc * const objdump_private_vectors[] = + { + OBJDUMP_PRIVATE_VECTORS + NULL + }; static void usage (FILE *stream, int status) @@ -194,6 +203,7 @@ usage (FILE *stream, int status) -a, --archive-headers Display archive header information\n\ -f, --file-headers Display the contents of the overall file header\n\ -p, --private-headers Display object format specific file header contents\n\ + -P, --private=OPT,OPT... Display object format specific contents\n\ -h, --[section-]headers Display the contents of the section headers\n\ -x, --all-headers Display the contents of all headers\n\ -d, --disassemble Display assembler contents of executable sections\n\ @@ -206,7 +216,7 @@ usage (FILE *stream, int status) -W[lLiaprmfFsoRt] or\n\ --dwarf[=rawline,=decodedline,=info,=abbrev,=pubnames,=aranges,=macro,=frames,\n\ =frames-interp,=str,=loc,=Ranges,=pubtypes,\n\ - =trace_info,=trace_abbrev,=trace_aranges]\n\ + =gdb_index,=trace_info,=trace_abbrev,=trace_aranges]\n\ Display DWARF info in the file\n\ -t, --syms Display the contents of the symbol table(s)\n\ -T, --dynamic-syms Display the contents of the dynamic symbol table\n\ @@ -219,6 +229,8 @@ usage (FILE *stream, int status) ")); if (status != 2) { + const struct objdump_private_desc * const *desc; + fprintf (stream, _("\n The following switches are optional:\n")); fprintf (stream, _("\ -b, --target=BFDNAME Specify the target object format as BFDNAME\n\ @@ -241,16 +253,27 @@ usage (FILE *stream, int status) --stop-address=ADDR Only process data whose address is <= ADDR\n\ --prefix-addresses Print complete address alongside disassembly\n\ --[no-]show-raw-insn Display hex alongside symbolic disassembly\n\ - --insn-width=WIDTH Display WIDTH bytes on a signle line for -d\n\ + --insn-width=WIDTH Display WIDTH bytes on a single line for -d\n\ --adjust-vma=OFFSET Add OFFSET to all displayed section addresses\n\ --special-syms Include special symbols in symbol dumps\n\ --prefix=PREFIX Add PREFIX to absolute paths for -S\n\ - --prefix-strip=LEVEL Strip initial directory names for -S\n\ -\n")); + --prefix-strip=LEVEL Strip initial directory names for -S\n")); + fprintf (stream, _("\ + --dwarf-depth=N Do not display DIEs at depth N or greater\n\ + --dwarf-start=N Display DIEs starting with N, at the same depth\n\ + or deeper\n\n")); list_supported_targets (program_name, stream); list_supported_architectures (program_name, stream); disassembler_usage (stream); + + if (objdump_private_vectors[0] != NULL) + { + fprintf (stream, + _("\nOptions supported for -P/--private switch:\n")); + for (desc = objdump_private_vectors; *desc != NULL; desc++) + (*desc)->help (stream); + } } if (REPORT_BUGS_TO[0] && status == 0) fprintf (stream, _("Report bugs to %s.\n"), REPORT_BUGS_TO); @@ -267,7 +290,9 @@ enum option_values OPTION_PREFIX, OPTION_PREFIX_STRIP, OPTION_INSN_WIDTH, - OPTION_ADJUST_VMA + OPTION_ADJUST_VMA, + OPTION_DWARF_DEPTH, + OPTION_DWARF_START }; static struct option long_options[]= @@ -275,6 +300,7 @@ static struct option long_options[]= {"adjust-vma", required_argument, NULL, OPTION_ADJUST_VMA}, {"all-headers", no_argument, NULL, 'x'}, {"private-headers", no_argument, NULL, 'p'}, + {"private", required_argument, NULL, 'P'}, {"architecture", required_argument, NULL, 'm'}, {"archive-headers", no_argument, NULL, 'a'}, {"debugging", no_argument, NULL, 'g'}, @@ -315,6 +341,8 @@ static struct option long_options[]= {"prefix", required_argument, NULL, OPTION_PREFIX}, {"prefix-strip", required_argument, NULL, OPTION_PREFIX_STRIP}, {"insn-width", required_argument, NULL, OPTION_INSN_WIDTH}, + {"dwarf-depth", required_argument, 0, OPTION_DWARF_DEPTH}, + {"dwarf-start", required_argument, 0, OPTION_DWARF_START}, {0, no_argument, 0, 0} }; @@ -393,7 +421,8 @@ free_only_list (void) { if (! at_least_one_seen) { - non_fatal (_("Section '%s' mentioned in a -j option, but not found in any input file"), + non_fatal (_("section '%s' mentioned in a -j option, " + "but not found in any input file"), only->name); exit_status = 1; } @@ -510,8 +539,6 @@ dump_headers (bfd *abfd) if (wide_output) printf (_(" Flags")); - if (abfd->flags & HAS_LOAD_PAGE) - printf (_(" Pg")); printf ("\n"); bfd_map_over_sections (abfd, dump_section_header, NULL); @@ -555,6 +582,7 @@ slurp_dynamic_symtab (bfd *abfd) if (!(bfd_get_file_flags (abfd) & DYNAMIC)) { non_fatal (_("%s: not a dynamic object"), bfd_get_filename (abfd)); + exit_status = 1; dynsymcount = 0; return NULL; } @@ -1210,9 +1238,6 @@ update_source_path (const char *filename) const char *fname; int i; - if (filename == NULL) - return NULL; - p = try_print_file_open (filename, filename); if (p != NULL) return p; @@ -1350,7 +1375,7 @@ show_line (bfd *abfd, asection *section, bfd_vma addr_offset) unsigned l; for (pp = &print_files; *pp != NULL; pp = &(*pp)->next) - if (strcmp ((*pp)->filename, filename) == 0) + if (filename_cmp ((*pp)->filename, filename) == 0) break; p = *pp; @@ -1626,10 +1651,16 @@ disassemble_bytes (struct disassemble_info * inf, inf->stream = stdout; if (insn_width == 0 && inf->bytes_per_line != 0) octets_per_line = inf->bytes_per_line; - if (octets < 0) + if (octets < (int) opb) { if (sfile.pos) printf ("%s\n", sfile.buffer); + if (octets >= 0) + { + non_fatal (_("disassemble_fn returned length %d"), + octets); + exit_status = 1; + } break; } } @@ -2107,7 +2138,7 @@ disassemble_data (bfd *abfd) const bfd_arch_info_type *inf = bfd_scan_arch (machine); if (inf == NULL) - fatal (_("Can't use supplied machine %s"), machine); + fatal (_("can't use supplied machine %s"), machine); abfd->arch_info = inf; } @@ -2126,7 +2157,7 @@ disassemble_data (bfd *abfd) aux.disassemble_fn = disassembler (abfd); if (!aux.disassemble_fn) { - non_fatal (_("Can't disassemble for architecture %s\n"), + non_fatal (_("can't disassemble for architecture %s\n"), bfd_printable_arch_mach (bfd_get_arch (abfd), 0)); exit_status = 1; return; @@ -2193,20 +2224,15 @@ load_specific_debug_section (enum dwarf_section_display_enum debug, struct dwarf_section *section = &debug_displays [debug].section; bfd *abfd = (bfd *) file; bfd_boolean ret; - int section_is_compressed; /* If it is already loaded, do nothing. */ if (section->start != NULL) return 1; - section_is_compressed = section->name == section->compressed_name; - section->address = 0; section->size = bfd_get_section_size (sec); - section->start = (unsigned char *) xmalloc (section->size); - - ret = bfd_get_section_contents (abfd, sec, section->start, 0, - section->size); + section->start = NULL; + ret = bfd_get_full_section_contents (abfd, sec, §ion->start); if (! ret) { @@ -2216,18 +2242,6 @@ load_specific_debug_section (enum dwarf_section_display_enum debug, return 0; } - if (section_is_compressed) - { - bfd_size_type size = section->size; - if (! bfd_uncompress_section_contents (§ion->start, &size)) - { - free_debug_section (debug); - printf (_("\nCan't uncompress section '%s'.\n"), section->name); - return 0; - } - section->size = size; - } - if (is_relocatable && debug_displays [debug].relocate) { /* We want to relocate the data we've already read (and @@ -2396,11 +2410,11 @@ read_section_stabs (bfd *abfd, const char *sect_name, bfd_size_type *size_ptr) if (! bfd_get_section_contents (abfd, stabsect, contents, 0, size)) { - non_fatal (_("Reading %s section of %s failed: %s"), + non_fatal (_("reading %s section of %s failed: %s"), sect_name, bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ())); - free (contents); exit_status = 1; + free (contents); return NULL; } @@ -2574,7 +2588,7 @@ dump_bfd_header (bfd *abfd) printf (_("architecture: %s, "), bfd_printable_arch_mach (bfd_get_arch (abfd), bfd_get_mach (abfd))); - printf (_("flags 0x%08x:\n"), abfd->flags); + printf (_("flags 0x%08x:\n"), abfd->flags & ~BFD_FLAGS_FOR_BFD_USE_MASK); #define PF(x, y) if (abfd->flags & x) {printf("%s%s", comma, y); comma=", ";} PF (HAS_RELOC, "HAS_RELOC"); @@ -2600,6 +2614,57 @@ dump_bfd_private_header (bfd *abfd) bfd_print_private_bfd_data (abfd, stdout); } +static void +dump_target_specific (bfd *abfd) +{ + const struct objdump_private_desc * const *desc; + struct objdump_private_option *opt; + char *e, *b; + + /* Find the desc. */ + for (desc = objdump_private_vectors; *desc != NULL; desc++) + if ((*desc)->filter (abfd)) + break; + + if (desc == NULL) + { + non_fatal (_("option -P/--private not supported by this file")); + return; + } + + /* Clear all options. */ + for (opt = (*desc)->options; opt->name; opt++) + opt->selected = FALSE; + + /* Decode options. */ + b = dump_private_options; + do + { + e = strchr (b, ','); + + if (e) + *e = 0; + + for (opt = (*desc)->options; opt->name; opt++) + if (strcmp (opt->name, b) == 0) + { + opt->selected = TRUE; + break; + } + if (opt->name == NULL) + non_fatal (_("target specific dump '%s' not supported"), b); + + if (e) + { + *e = ','; + b = e + 1; + } + } + while (e != NULL); + + /* Dump. */ + (*desc)->dump (abfd); +} /* Display a section in hexadecimal format with associated characters. Each line prefixed by the zero padded address. */ @@ -2657,9 +2722,11 @@ dump_section (bfd *abfd, asection *section, void *dummy ATTRIBUTE_UNUSED) (unsigned long) (section->filepos + start_offset)); printf ("\n"); - data = (bfd_byte *) xmalloc (datasize); - - bfd_get_section_contents (abfd, section, data, 0, datasize); + if (!bfd_get_full_section_contents (abfd, section, &data)) + { + non_fatal (_("Reading section failed")); + return; + } width = 4; @@ -2840,6 +2907,7 @@ dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount) unsigned int linenumber; const char *sym_name; const char *section_name; + bfd_vma addend2 = 0; if (start_address != (bfd_vma) -1 && q->address < start_address) @@ -2867,7 +2935,7 @@ dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount) && (linenumber != last_line || (filename != NULL && last_filename != NULL - && strcmp (filename, last_filename) != 0))) + && filename_cmp (filename, last_filename) != 0))) { printf ("%s:%u\n", filename == NULL ? "???" : filename, linenumber); last_line = linenumber; @@ -2895,7 +2963,37 @@ dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount) if (q->howto == NULL) printf (" *unknown* "); else if (q->howto->name) - printf (" %-16s ", q->howto->name); + { + const char *name = q->howto->name; + + /* R_SPARC_OLO10 relocations contain two addends. + But because 'arelent' lacks enough storage to + store them both, the 64-bit ELF Sparc backend + records this as two relocations. One R_SPARC_LO10 + and one R_SPARC_13, both pointing to the same + address. This is merely so that we have some + place to store both addend fields. + + Undo this transformation, otherwise the output + will be confusing. */ + if (abfd->xvec->flavour == bfd_target_elf_flavour + && elf_tdata(abfd)->elf_header->e_machine == EM_SPARCV9 + && relcount > 1 + && !strcmp (q->howto->name, "R_SPARC_LO10")) + { + arelent *q2 = *(p + 1); + if (q2 != NULL + && q2->howto + && q->address == q2->address + && !strcmp (q2->howto->name, "R_SPARC_13")) + { + name = "R_SPARC_OLO10"; + addend2 = q2->addend; + p++; + } + } + printf (" %-16s ", name); + } else printf (" %-16d ", q->howto->type); @@ -2915,9 +3013,19 @@ dump_reloc_set (bfd *abfd, asection *sec, arelent **relpp, long relcount) printf ("+0x"); bfd_printf_vma (abfd, q->addend); } + if (addend2) + { + printf ("+0x"); + bfd_printf_vma (abfd, addend2); + } printf ("\n"); } + + if (last_filename != NULL) + free (last_filename); + if (last_functionname != NULL) + free (last_functionname); } static void @@ -3049,7 +3157,7 @@ dump_bfd (bfd *abfd) bfd_map_over_sections (abfd, adjust_addresses, &has_reloc); } - if (! dump_debugging_tags) + if (! dump_debugging_tags && ! suppress_bfd_header) printf (_("\n%s: file format %s\n"), bfd_get_filename (abfd), abfd->xvec->name); if (dump_ar_hdrs) @@ -3058,7 +3166,9 @@ dump_bfd (bfd *abfd) dump_bfd_header (abfd); if (dump_private_headers) dump_bfd_private_header (abfd); - if (! dump_debugging_tags) + if (dump_private_options != NULL) + dump_target_specific (abfd); + if (! dump_debugging_tags && ! suppress_bfd_header) putchar ('\n'); if (dump_section_headers) dump_headers (abfd); @@ -3145,7 +3255,7 @@ dump_bfd (bfd *abfd) } static void -display_bfd (bfd *abfd) +display_object_bfd (bfd *abfd) { char **matching; @@ -3185,30 +3295,23 @@ display_bfd (bfd *abfd) } static void -display_file (char *filename, char *target) +display_any_bfd (bfd *file, int level) { - bfd *file; - bfd *arfile = NULL; - - if (get_file_size (filename) < 1) - { - exit_status = 1; - return; - } - - file = bfd_openr (filename, target); - if (file == NULL) - { - nonfatal (filename); - return; - } + /* Decompress sections unless dumping the section contents. */ + if (!dump_section_contents) + file->flags |= BFD_DECOMPRESS; /* If the file is an archive, process all of its elements. */ if (bfd_check_format (file, bfd_archive)) { + bfd *arfile = NULL; bfd *last_arfile = NULL; - printf (_("In archive %s:\n"), bfd_get_filename (file)); + if (level == 0) + printf (_("In archive %s:\n"), bfd_get_filename (file)); + else + printf (_("In nested archive %s:\n"), bfd_get_filename (file)); + for (;;) { bfd_set_error (bfd_error_no_error); @@ -3221,7 +3324,7 @@ display_file (char *filename, char *target) break; } - display_bfd (arfile); + display_any_bfd (arfile, level + 1); if (last_arfile != NULL) bfd_close (last_arfile); @@ -3232,7 +3335,28 @@ display_file (char *filename, char *target) bfd_close (last_arfile); } else - display_bfd (file); + display_object_bfd (file); +} + +static void +display_file (char *filename, char *target) +{ + bfd *file; + + if (get_file_size (filename) < 1) + { + exit_status = 1; + return; + } + + file = bfd_openr (filename, target); + if (file == NULL) + { + nonfatal (filename); + return; + } + + display_any_bfd (file, 0); bfd_close (file); } @@ -3265,7 +3389,7 @@ main (int argc, char **argv) set_default_bfd_target (); while ((c = getopt_long (argc, argv, - "pib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::", + "pP:ib:m:M:VvCdDlfFaHhrRtTxsSI:j:wE:zgeGW::", long_options, (int *) 0)) != EOF) { @@ -3350,7 +3474,7 @@ main (int argc, char **argv) endian = BFD_ENDIAN_LITTLE; else { - non_fatal (_("unrecognized -E option")); + nonfatal (_("unrecognized -E option")); usage (stderr, 1); } break; @@ -3362,6 +3486,7 @@ main (int argc, char **argv) else { non_fatal (_("unrecognized --endian type `%s'"), optarg); + exit_status = 1; usage (stderr, 1); } break; @@ -3381,6 +3506,10 @@ main (int argc, char **argv) dump_private_headers = TRUE; seenflag = TRUE; break; + case 'P': + dump_private_options = optarg; + seenflag = TRUE; + break; case 'x': dump_private_headers = TRUE; dump_symtab = TRUE; @@ -3441,6 +3570,19 @@ main (int argc, char **argv) else dwarf_select_sections_all (); break; + case OPTION_DWARF_DEPTH: + { + char *cp; + dwarf_cutoff_level = strtoul (optarg, & cp, 0); + } + break; + case OPTION_DWARF_START: + { + char *cp; + dwarf_start_die = strtoul (optarg, & cp, 0); + suppress_bfd_header = 1; + } + break; case 'G': dump_stab_section_info = TRUE; seenflag = TRUE;