X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=binutils%2Fnm.c;h=99d2027250fc6cfa3e7fbbd4c96c0a34e2e7cf76;hb=8380882108b7c11864212eab15eeb5d4c9a3b138;hp=5b421785e5e07817bc6806fb239d9fc608987a46;hpb=e601d38b7cc222345d4128f45db18529b9fb477b;p=deliverable%2Fbinutils-gdb.git diff --git a/binutils/nm.c b/binutils/nm.c index 5b421785e5..99d2027250 100644 --- a/binutils/nm.c +++ b/binutils/nm.c @@ -1,5 +1,5 @@ /* nm.c -- Describe symbol table of a rel file. - Copyright (C) 1991-2017 Free Software Foundation, Inc. + Copyright (C) 1991-2020 Free Software Foundation, Inc. This file is part of GNU Binutils. @@ -77,15 +77,15 @@ struct extended_symbol_info (sym->elfinfo ? sym->elfinfo->internal_elf_sym.st_size: sym->ssize) /* The output formatting functions. */ -static void print_object_filename_bsd (char *); -static void print_object_filename_sysv (char *); -static void print_object_filename_posix (char *); -static void print_archive_filename_bsd (char *); -static void print_archive_filename_sysv (char *); -static void print_archive_filename_posix (char *); -static void print_archive_member_bsd (char *, const char *); -static void print_archive_member_sysv (char *, const char *); -static void print_archive_member_posix (char *, const char *); +static void print_object_filename_bsd (const char *); +static void print_object_filename_sysv (const char *); +static void print_object_filename_posix (const char *); +static void print_archive_filename_bsd (const char *); +static void print_archive_filename_sysv (const char *); +static void print_archive_filename_posix (const char *); +static void print_archive_member_bsd (const char *, const char *); +static void print_archive_member_sysv (const char *, const char *); +static void print_archive_member_posix (const char *, const char *); static void print_symbol_filename_bsd (bfd *, bfd *); static void print_symbol_filename_sysv (bfd *, bfd *); static void print_symbol_filename_posix (bfd *, bfd *); @@ -98,13 +98,13 @@ static void print_symbol_info_posix (struct extended_symbol_info *, bfd *); struct output_fns { /* Print the name of an object file given on the command line. */ - void (*print_object_filename) (char *); + void (*print_object_filename) (const char *); /* Print the name of an archive file given on the command line. */ - void (*print_archive_filename) (char *); + void (*print_archive_filename) (const char *); /* Print the name of an archive member file. */ - void (*print_archive_member) (char *, const char *); + void (*print_archive_member) (const char *, const char *); /* Print the name of the file (and archive, if there is one) containing a symbol. */ @@ -141,6 +141,8 @@ static struct output_fns formats[] = /* The output format to use. */ static struct output_fns *format = &formats[FORMAT_DEFAULT]; +static unsigned int print_format = FORMAT_DEFAULT; +static const char *print_format_string = NULL; /* Command options. */ @@ -162,21 +164,12 @@ static int line_numbers = 0; /* Print line numbers for symbols. */ static int allow_special_symbols = 0; /* Allow special symbols. */ static int with_symbol_versions = 0; /* Include symbol version information in the output. */ +static int demangle_flags = DMGL_ANSI | DMGL_PARAMS; + /* 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. */ static int filename_per_symbol = 0; /* Once per symbol, at start of line. */ -/* Print formats for printing a symbol value. */ -static char value_format_32bit[] = "%08lx"; -#if BFD_HOST_64BIT_LONG -static char value_format_64bit[] = "%016lx"; -#elif BFD_HOST_64BIT_LONG_LONG -#ifndef __MSVCRT__ -static char value_format_64bit[] = "%016llx"; -#else -static char value_format_64bit[] = "%016I64x"; -#endif -#endif static int print_width = 0; static int print_radix = 16; /* Print formats for printing stab info. */ @@ -194,9 +187,14 @@ static const char *plugin_target = NULL; static bfd *lineno_cache_bfd; static bfd *lineno_cache_rel_bfd; -#define OPTION_TARGET 200 -#define OPTION_PLUGIN (OPTION_TARGET + 1) -#define OPTION_SIZE_SORT (OPTION_PLUGIN + 1) +enum long_option_values +{ + OPTION_TARGET = 200, + OPTION_PLUGIN, + OPTION_SIZE_SORT, + OPTION_RECURSE_LIMIT, + OPTION_NO_RECURSE_LIMIT +}; static struct option long_options[] = { @@ -209,6 +207,8 @@ static struct option long_options[] = {"line-numbers", no_argument, 0, 'l'}, {"no-cplus", no_argument, &do_demangle, 0}, /* Linux compatibility. */ {"no-demangle", no_argument, &do_demangle, 0}, + {"no-recurse-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT}, + {"no-recursion-limit", no_argument, NULL, OPTION_NO_RECURSE_LIMIT}, {"no-sort", no_argument, 0, 'p'}, {"numeric-sort", no_argument, 0, 'n'}, {"plugin", required_argument, 0, OPTION_PLUGIN}, @@ -217,6 +217,8 @@ static struct option long_options[] = {"print-file-name", no_argument, 0, 'o'}, {"print-size", no_argument, 0, 'S'}, {"radix", required_argument, 0, 't'}, + {"recurse-limit", no_argument, NULL, OPTION_RECURSE_LIMIT}, + {"recursion-limit", no_argument, NULL, OPTION_RECURSE_LIMIT}, {"reverse-sort", no_argument, &reverse_sort, 1}, {"size-sort", no_argument, 0, OPTION_SIZE_SORT}, {"special-syms", no_argument, &allow_special_symbols, 1}, @@ -245,6 +247,8 @@ usage (FILE *stream, int status) `gnu', `lucid', `arm', `hp', `edg', `gnu-v3', `java'\n\ or `gnat'\n\ --no-demangle Do not demangle low-level symbol names\n\ + --recurse-limit Enable a demangling recursion limit. This is the default.\n\ + --no-recurse-limit Disable a demangling recursion limit.\n\ -D, --dynamic Display dynamic symbols instead of normal symbols\n\ --defined-only Display only defined symbols\n\ -e (ignored)\n\ @@ -290,29 +294,15 @@ set_print_radix (char *radix) { switch (*radix) { - case 'x': - break; - case 'd': - case 'o': - if (*radix == 'd') - print_radix = 10; - else - print_radix = 8; - value_format_32bit[4] = *radix; -#if BFD_HOST_64BIT_LONG - value_format_64bit[5] = *radix; -#elif BFD_HOST_64BIT_LONG_LONG -#ifndef __MSVCRT__ - value_format_64bit[6] = *radix; -#else - value_format_64bit[7] = *radix; -#endif -#endif - other_format[3] = desc_format[3] = *radix; - break; + case 'x': print_radix = 16; break; + case 'd': print_radix = 10; break; + case 'o': print_radix = 8; break; + default: fatal (_("%s: invalid radix"), radix); } + + other_format[3] = desc_format[3] = *radix; } static void @@ -338,6 +328,7 @@ set_output_format (char *f) fatal (_("%s: invalid output format"), f); } format = &formats[i]; + print_format = i; } static const char * @@ -407,7 +398,7 @@ print_symname (const char *form, const char *name, bfd *abfd) { if (do_demangle && *name) { - char *res = bfd_demangle (abfd, name, DMGL_ANSI | DMGL_PARAMS); + char *res = bfd_demangle (abfd, name, demangle_flags); if (res != NULL) { @@ -448,6 +439,10 @@ print_symdef_entry (bfd *abfd) } } + +/* True when we can report missing plugin error. */ +bfd_boolean report_plugin_err = TRUE; + /* Choose which symbol entries to print; compact them downward to get rid of the rest. Return the number of symbols to be printed. */ @@ -480,9 +475,13 @@ filter_symbols (bfd *abfd, bfd_boolean is_dynamic, void *minisyms, if (sym->name[0] == '_' && sym->name[1] == '_' - && strcmp (sym->name + (sym->name[2] == '_'), "__gnu_lto_slim") == 0) - non_fatal (_("%s: plugin needed to handle lto object"), - bfd_get_filename (abfd)); + && strcmp (sym->name + (sym->name[2] == '_'), "__gnu_lto_slim") == 0 + && report_plugin_err) + { + report_plugin_err = FALSE; + non_fatal (_("%s: plugin needed to handle lto object"), + bfd_get_filename (abfd)); + } if (undefined_only) keep = bfd_is_und_section (sym->section); @@ -594,8 +593,8 @@ numeric_forward (const void *P_x, const void *P_y) if (x == NULL || y == NULL) bfd_fatal (bfd_get_filename (sort_bfd)); - xs = bfd_get_section (x); - ys = bfd_get_section (y); + xs = bfd_asymbol_section (x); + ys = bfd_asymbol_section (y); if (bfd_is_und_section (xs)) { @@ -647,8 +646,8 @@ size_forward1 (const void *P_x, const void *P_y) if (x == NULL || y == NULL) bfd_fatal (bfd_get_filename (sort_bfd)); - xs = bfd_get_section (x); - ys = bfd_get_section (y); + xs = bfd_asymbol_section (x); + ys = bfd_asymbol_section (y); if (bfd_is_und_section (xs)) abort (); @@ -763,7 +762,6 @@ sort_symbols_by_size (bfd *abfd, bfd_boolean is_dynamic, void *minisyms, asection *sec; bfd_vma sz; asymbol *temp; - int synthetic = (sym->flags & BSF_SYNTHETIC); if (from + size < fromend) { @@ -777,22 +775,25 @@ sort_symbols_by_size (bfd *abfd, bfd_boolean is_dynamic, void *minisyms, else next = NULL; - sec = bfd_get_section (sym); + sec = bfd_asymbol_section (sym); /* Synthetic symbols don't have a full type set of data available, thus - we can't rely on that information for the symbol size. */ - if (!synthetic && bfd_get_flavour (abfd) == bfd_target_elf_flavour) + we can't rely on that information for the symbol size. Ditto for + bfd/section.c:global_syms like *ABS*. */ + if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0 + && bfd_get_flavour (abfd) == bfd_target_elf_flavour) sz = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; - else if (!synthetic && bfd_is_com_section (sec)) + else if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0 + && bfd_is_com_section (sec)) sz = sym->value; else { if (from + size < fromend - && sec == bfd_get_section (next)) + && sec == bfd_asymbol_section (next)) sz = valueof (next) - valueof (sym); else - sz = (bfd_get_section_vma (abfd, sec) - + bfd_section_size (abfd, sec) + sz = (bfd_section_vma (sec) + + bfd_section_size (sec) - valueof (sym)); } @@ -872,8 +873,9 @@ print_symbol (bfd * abfd, info.sinfo = &syminfo; info.ssize = ssize; - /* Synthetic symbols do not have a full symbol type set of data available. */ - if ((sym->flags & BSF_SYNTHETIC) != 0) + /* Synthetic symbols do not have a full symbol type set of data available. + Nor do bfd/section.c:global_syms like *ABS*. */ + if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) != 0) { info.elfinfo = NULL; info.coffinfo = NULL; @@ -891,10 +893,10 @@ print_symbol (bfd * abfd, const char * version_string = NULL; bfd_boolean hidden = FALSE; - if ((sym->flags & BSF_SYNTHETIC) == 0) + if ((sym->flags & (BSF_SECTION_SYM | BSF_SYNTHETIC)) == 0) version_string = bfd_get_symbol_version_string (abfd, sym, &hidden); - if (bfd_is_und_section (bfd_get_section (sym))) + if (bfd_is_und_section (bfd_asymbol_section (sym))) hidden = TRUE; if (version_string && *version_string != '\0') @@ -930,7 +932,7 @@ print_symbol (bfd * abfd, lineno_cache_bfd = abfd; } - if (bfd_is_und_section (bfd_get_section (sym))) + if (bfd_is_und_section (bfd_asymbol_section (sym))) { static asection **secs; static arelent ***relocs; @@ -1000,10 +1002,10 @@ print_symbol (bfd * abfd, } } } - else if (bfd_get_section (sym)->owner == abfd) + else if (bfd_asymbol_section (sym)->owner == abfd) { if ((bfd_find_line (abfd, syms, sym, &filename, &lineno) - || bfd_find_nearest_line (abfd, bfd_get_section (sym), + || bfd_find_nearest_line (abfd, bfd_asymbol_section (sym), syms, sym->value, &filename, &functionname, &lineno)) && filename != NULL @@ -1159,21 +1161,27 @@ display_rel_file (bfd *abfd, bfd *archive_bfd) if (synth_count > 0) { asymbol **symp; - void *new_mini; long i; - new_mini = xmalloc ((symcount + synth_count + 1) * sizeof (*symp)); - symp = (asymbol **) new_mini; - memcpy (symp, minisyms, symcount * sizeof (*symp)); - symp += symcount; + minisyms = xrealloc (minisyms, + (symcount + synth_count + 1) * sizeof (*symp)); + symp = (asymbol **) minisyms + symcount; for (i = 0; i < synth_count; i++) *symp++ = synthsyms + i; *symp = 0; - minisyms = new_mini; symcount += synth_count; } } + /* lto_slim_object is set to false when a bfd is loaded with a compiler + LTO plugin. */ + if (abfd->lto_slim_object) + { + report_plugin_err = FALSE; + non_fatal (_("%s: plugin needed to handle lto object"), + bfd_get_filename (abfd)); + } + /* Discard the symbols we don't want to print. It's OK to do this in place; we'll free the storage anyway (after printing). */ @@ -1209,6 +1217,51 @@ display_rel_file (bfd *abfd, bfd *archive_bfd) free (symsizes); } +/* Construct a formatting string for printing symbol values. */ + +static const char * +get_print_format (void) +{ + const char * padding; + if (print_format == FORMAT_POSIX) + { + /* POSIX compatible output does not have any padding. */ + padding = ""; + } + else if (print_width == 32) + { + padding ="08"; + } + else /* print_width == 64 */ + { + padding = "016"; + } + + const char * length = "l"; + if (print_width == 64) + { +#if BFD_HOST_64BIT_LONG + ; +#elif BFD_HOST_64BIT_LONG_LONG +#ifndef __MSVCRT__ + length = "ll"; +#else + length = "I64"; +#endif +#endif + } + + const char * radix = NULL; + switch (print_radix) + { + case 8: radix = "o"; break; + case 10: radix = "d"; break; + case 16: radix = "x"; break; + } + + return concat ("%", padding, length, radix, NULL); +} + static void set_print_width (bfd *file) { @@ -1227,6 +1280,8 @@ set_print_width (bfd *file) else print_width = 32; } + free ((char *) print_format_string); + print_format_string = get_print_format (); } static void @@ -1350,14 +1405,14 @@ display_file (char *filename) /* Print the name of an object file given on the command line. */ static void -print_object_filename_bsd (char *filename) +print_object_filename_bsd (const char *filename) { if (filename_per_file && !filename_per_symbol) printf ("\n%s:\n", filename); } static void -print_object_filename_sysv (char *filename) +print_object_filename_sysv (const char *filename) { if (undefined_only) printf (_("\n\nUndefined symbols from %s:\n\n"), filename); @@ -1372,7 +1427,7 @@ Name Value Class Type Size } static void -print_object_filename_posix (char *filename) +print_object_filename_posix (const char *filename) { if (filename_per_file && !filename_per_symbol) printf ("%s:\n", filename); @@ -1381,26 +1436,26 @@ print_object_filename_posix (char *filename) /* Print the name of an archive file given on the command line. */ static void -print_archive_filename_bsd (char *filename) +print_archive_filename_bsd (const char *filename) { if (filename_per_file) printf ("\n%s:\n", filename); } static void -print_archive_filename_sysv (char *filename ATTRIBUTE_UNUSED) +print_archive_filename_sysv (const char *filename ATTRIBUTE_UNUSED) { } static void -print_archive_filename_posix (char *filename ATTRIBUTE_UNUSED) +print_archive_filename_posix (const char *filename ATTRIBUTE_UNUSED) { } /* Print the name of an archive member file. */ static void -print_archive_member_bsd (char *archive ATTRIBUTE_UNUSED, +print_archive_member_bsd (const char *archive ATTRIBUTE_UNUSED, const char *filename) { if (!filename_per_symbol) @@ -1408,7 +1463,7 @@ print_archive_member_bsd (char *archive ATTRIBUTE_UNUSED, } static void -print_archive_member_sysv (char *archive, const char *filename) +print_archive_member_sysv (const char *archive, const char *filename) { if (undefined_only) printf (_("\n\nUndefined symbols from %s[%s]:\n\n"), archive, filename); @@ -1423,7 +1478,7 @@ Name Value Class Type Size } static void -print_archive_member_posix (char *archive, const char *filename) +print_archive_member_posix (const char *archive, const char *filename) { if (!filename_per_symbol) printf ("%s[%s]:\n", archive, filename); @@ -1475,12 +1530,12 @@ print_value (bfd *abfd ATTRIBUTE_UNUSED, bfd_vma val) switch (print_width) { case 32: - printf (value_format_32bit, (unsigned long) val); + printf (print_format_string, (unsigned long) val); break; case 64: #if BFD_HOST_64BIT_LONG || BFD_HOST_64BIT_LONG_LONG - printf (value_format_64bit, val); + printf (print_format_string, val); #else /* We have a 64 bit value to print, but the host is only 32 bit. */ if (print_radix == 16) @@ -1651,7 +1706,8 @@ main (int argc, char **argv) expandargv (&argc, &argv); - bfd_init (); + if (bfd_init () != BFD_INIT_MAGIC) + fatal (_("fatal error: libbfd ABI mismatch")); set_default_bfd_target (); while ((c = getopt_long (argc, argv, "aABCDef:gHhlnopPrSst:uvVvX:", @@ -1683,6 +1739,12 @@ main (int argc, char **argv) cplus_demangle_set_style (style); } break; + case OPTION_RECURSE_LIMIT: + demangle_flags &= ~ DMGL_NO_RECURSE_LIMIT; + break; + case OPTION_NO_RECURSE_LIMIT: + demangle_flags |= DMGL_NO_RECURSE_LIMIT; + break; case 'D': dynamic = 1; break;