diff options
| -rw-r--r-- | binutils/ChangeLog | 13 | ||||
| -rw-r--r-- | binutils/binutils.texi | 14 | ||||
| -rw-r--r-- | binutils/objdump.1 | 9 | ||||
| -rw-r--r-- | binutils/objdump.c | 121 |
4 files changed, 132 insertions, 25 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 1927f69..e6c368c 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,5 +1,18 @@ Sat Mar 15 15:35:56 1997 Ian Lance Taylor <ian@cygnus.com> + Based on patches from Jamie Lokier <jamie@rebellion.co.uk>: + * objdump.c: Include "demangle.h". + (do_demangle): New static variable. + (usage): Mention -C/--demangle. + (long_options): Add "demangle". + (objdump_print_symname): New static function. + (objdump_print_addr_with_sym): Use objdump_print_symname. + (disassemble_bytes): Likewise. + (dump_reloc_set): Likewise. + (dump_symbols): Demangle symbol name. + (main): Handle -C. + * binutils.texi, objdump.1: Document -C/--demangle. + * objdump.c (usage): Mention --no-show-raw-insn. (long_options): Add "no-show-raw-insn". (disassemble_bytes): Handle --no-show-raw-insn. diff --git a/binutils/binutils.texi b/binutils/binutils.texi index b4efc88..7b7c8c6 100644 --- a/binutils/binutils.texi +++ b/binutils/binutils.texi @@ -693,7 +693,7 @@ The same as @samp{--format=bsd} (for compatibility with the MIPS @code{nm}). @item -C @itemx --demangle -@cindex demangling C++ symbols +@cindex demangling in nm Decode (@dfn{demangle}) low-level symbol names into user-level names. Besides removing any initial underscore prepended by the system, this makes C++ function names readable. @xref{c++filt}, for more information @@ -1037,8 +1037,8 @@ Show a summary of the options to @code{objcopy}. @smallexample objdump [ -a | --archive-headers ] [ -b @var{bfdname} | --target=@var{bfdname} ] [ --debugging ] - [ -d | --disassemble ] [ -D | --disassemble-all ] - [ --disassemble-zeroes ] + [ -C | --demangle ] [ -d | --disassemble ] + [ -D | --disassemble-all ] [ --disassemble-zeroes ] [ -EB | -EL | --endian=@{big | little @} ] [ -f | --file-headers ] [ -h | --section-headers | --headers ] [ -i | --info ] @@ -1105,6 +1105,14 @@ file in the format produced by Oasys compilers. You can list the formats available with the @samp{-i} option. @xref{Target Selection}, for more information. +@item -C +@itemx --demangle +@cindex demangling in objdump +Decode (@dfn{demangle}) low-level symbol names into user-level names. +Besides removing any initial underscore prepended by the system, this +makes C++ function names readable. @xref{c++filt}, for more information +on demangling. + @item --debugging Display debugging information. This attempts to parse debugging information stored in the file and print it out using a C like syntax. diff --git a/binutils/objdump.1 b/binutils/objdump.1 index c331d3e..6c15531 100644 --- a/binutils/objdump.1 +++ b/binutils/objdump.1 @@ -21,6 +21,7 @@ objdump \- display information from object files. .RB " | " "\-\-target="\c .I bfdname\c \&\|] +.RB "[\|" \-C | \-\-demangle "\|]" .RB "[\|" \-\-debugging "\|]" .RB "[\|" \-d | \-\-disassemble "\|]" .RB "[\|" \-D | \-\-disassemble-all "\|]" @@ -145,6 +146,14 @@ formats available with the `\|\c \|' option. .TP +.B \-C +.TP +.B \-\-demangle +Decode (\fIdemangle\fP) low-level symbol names into user-level names. +Besides removing any initial underscore prepended by the system, this +makes C++ function names readable. + +.TP .B \-\-debugging Display debugging information. This attempts to parse debugging information stored in the file and print it out using a C like syntax. diff --git a/binutils/objdump.c b/binutils/objdump.c index 6938597..e6c4c76 100644 --- a/binutils/objdump.c +++ b/binutils/objdump.c @@ -24,6 +24,7 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <ctype.h> #include "dis-asm.h" #include "libiberty.h" +#include "demangle.h" #include "debug.h" #include "budbg.h" @@ -59,6 +60,7 @@ static int with_line_numbers; /* -l */ static boolean with_source_code; /* -S */ static int show_raw_insn; /* --show-raw-insn */ static int dump_stab_section_info; /* --stabs */ +static int do_demangle; /* -C, --demangle */ static boolean disassemble; /* -d */ static boolean disassemble_all; /* -D */ static int disassemble_zeroes; /* --disassemble-zeroes */ @@ -127,6 +129,9 @@ display_bfd PARAMS ((bfd *abfd)); static void objdump_print_value PARAMS ((bfd_vma, struct disassemble_info *, boolean)); +static void +objdump_print_symname PARAMS ((bfd *, struct disassemble_info *, asymbol *)); + static asymbol * find_symbol_for_address PARAMS ((bfd *, asection *, bfd_vma, boolean, long *)); @@ -160,7 +165,7 @@ usage (stream, status) int status; { fprintf (stream, "\ -Usage: %s [-ahifdDprRtTxsSlw] [-b bfdname] [-m machine] [-j section-name]\n\ +Usage: %s [-ahifCdDprRtTxsSlw] [-b bfdname] [-m machine] [-j section-name]\n\ [--archive-headers] [--target=bfdname] [--debugging] [--disassemble]\n\ [--disassemble-all] [--disassemble-zeroes] [--file-headers]\n\ [--section-headers] [--headers]\n\ @@ -171,8 +176,8 @@ Usage: %s [-ahifdDprRtTxsSlw] [-b bfdname] [-m machine] [-j section-name]\n\ [--syms] [--all-headers] [--dynamic-syms] [--dynamic-reloc]\n\ [--wide] [--version] [--help] [--private-headers]\n\ [--start-address=addr] [--stop-address=addr]\n\ - [--prefix-addresses] [--[no-]show-raw-insn] [--adjust-vma=offset]\n\ - [-EB|-EL] [--endian={big|little}] objfile...\n\ + [--prefix-addresses] [--[no-]show-raw-insn] [--demangle]\n\ + [--adjust-vma=offset] [-EB|-EL] [--endian={big|little}] objfile...\n\ at least one option besides -l (--line-numbers) must be given\n"); list_supported_targets (program_name, stream); if (status == 0) @@ -195,6 +200,7 @@ static struct option long_options[]= {"architecture", required_argument, NULL, 'm'}, {"archive-headers", no_argument, NULL, 'a'}, {"debugging", no_argument, &dump_debugging, 1}, + {"demangle", no_argument, &do_demangle, 1}, {"disassemble", no_argument, NULL, 'd'}, {"disassemble-all", no_argument, NULL, 'D'}, {"disassemble-zeroes", no_argument, &disassemble_zeroes, 1}, @@ -561,6 +567,44 @@ objdump_print_value (vma, info, skip_zeroes) (*info->fprintf_func) (info->stream, "%s", p); } +/* Print the name of a symbol. */ + +static void +objdump_print_symname (abfd, info, sym) + bfd *abfd; + struct disassemble_info *info; + asymbol *sym; +{ + char *alloc; + const char *name; + const char *print; + + alloc = NULL; + name = bfd_asymbol_name (sym); + if (! do_demangle || name[0] == '\0') + print = name; + else + { + /* Demangle the name. */ + if (bfd_get_symbol_leading_char (abfd) == name[0]) + ++name; + + alloc = cplus_demangle (name, DMGL_ANSI | DMGL_PARAMS); + if (alloc == NULL) + print = name; + else + print = alloc; + } + + if (info != NULL) + (*info->fprintf_func) (info->stream, "%s", print); + else + printf ("%s", print); + + if (alloc != NULL) + free (alloc); +} + /* Locate a symbol given a bfd, a section, and a VMA. If REQUIRE_SEC is true, then always require the symbol to be in the section. This returns NULL if there is no suitable symbol. If PLACE is not NULL, @@ -720,7 +764,8 @@ objdump_print_addr_with_sym (abfd, sec, sym, vma, info, skip_zeroes) } else { - (*info->fprintf_func) (info->stream, " <%s", sym->name); + (*info->fprintf_func) (info->stream, " <"); + objdump_print_symname (abfd, info, sym); if (bfd_asymbol_value (sym) > vma) { (*info->fprintf_func) (info->stream, "-"); @@ -1278,7 +1323,6 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp, && (**relppp)->address < (bfd_vma) i + bytes)) { arelent *q; - const char *sym_name; q = **relppp; @@ -1291,24 +1335,26 @@ disassemble_bytes (info, disassemble_fn, insns, data, start, stop, relppp, printf (": %s\t", q->howto->name); - if (q->sym_ptr_ptr != NULL - && *q->sym_ptr_ptr != NULL) + if (q->sym_ptr_ptr == NULL || *q->sym_ptr_ptr == NULL) + printf ("*unknown*"); + else { + const char *sym_name; + sym_name = bfd_asymbol_name (*q->sym_ptr_ptr); - if (sym_name == NULL || *sym_name == '\0') + if (sym_name != NULL && *sym_name != '\0') + objdump_print_symname (aux->abfd, info, *q->sym_ptr_ptr); + else { asection *sym_sec; sym_sec = bfd_get_section (*q->sym_ptr_ptr); - sym_name = bfd_get_section_name (abfd, sym_sec); + sym_name = bfd_get_section_name (aux->abfd, sym_sec); if (sym_name == NULL || *sym_name == '\0') sym_name = "*unknown*"; + printf ("%s", sym_name); } } - else - sym_name = "*unknown*"; - - printf ("%s", sym_name); if (q->addend) { @@ -2063,12 +2109,40 @@ dump_symbols (abfd, dynamic) { if (*current) { - bfd *cur_bfd = bfd_asymbol_bfd(*current); - if (cur_bfd) + bfd *cur_bfd = bfd_asymbol_bfd (*current); + + if (cur_bfd != NULL) { - bfd_print_symbol (cur_bfd, - stdout, - *current, bfd_print_symbol_all); + const char *name; + char *alloc; + + name = bfd_asymbol_name (*current); + alloc = NULL; + if (do_demangle && name != NULL && *name != '\0') + { + const char *n; + + /* If we want to demangle the name, we demangle it + here, and temporarily clobber it while calling + bfd_print_symbol. FIXME: This is a gross hack. */ + + n = name; + if (bfd_get_symbol_leading_char (cur_bfd) == *n) + ++n; + alloc = cplus_demangle (n, DMGL_ANSI | DMGL_PARAMS); + if (alloc != NULL) + (*current)->name = alloc; + else + (*current)->name = n; + } + + bfd_print_symbol (cur_bfd, stdout, *current, + bfd_print_symbol_all); + + (*current)->name = name; + if (alloc != NULL) + free (alloc); + printf ("\n"); } } @@ -2260,9 +2334,9 @@ dump_reloc_set (abfd, sec, relpp, relcount) if (sym_name) { printf_vma (q->address); - printf (" %-16s %s", - q->howto->name, - sym_name); + printf (" %-16s ", q->howto->name); + objdump_print_symname (abfd, (struct disassemble_info *) NULL, + *q->sym_ptr_ptr); } else { @@ -2473,7 +2547,7 @@ main (argc, argv) bfd_init (); set_default_bfd_target (); - while ((c = getopt_long (argc, argv, "pib:m:VdDlfahrRtTxsSj:wE:", + while ((c = getopt_long (argc, argv, "pib:m:VCdDlfahrRtTxsSj:wE:", long_options, (int *) 0)) != EOF) { @@ -2518,6 +2592,9 @@ main (argc, argv) case 'T': dump_dynamic_symtab = 1; break; + case 'C': + do_demangle = 1; + break; case 'd': disassemble = true; break; |