X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=ld%2Fldmisc.c;h=5efff74feef0e7636b8c1f95065960e70c824c1d;hb=b62b1f7143c70caf5a14bd9684bbe50f51db706f;hp=4f0d2c9a3f2cc9a20bf326c0b9f731fcd5fbb728;hpb=23cb3b650466e01046357408bb097e2e33132b41;p=deliverable%2Fbinutils-gdb.git diff --git a/ld/ldmisc.c b/ld/ldmisc.c index 4f0d2c9a3f..5efff74fee 100644 --- a/ld/ldmisc.c +++ b/ld/ldmisc.c @@ -1,506 +1,547 @@ /* ldmisc.c - Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc. - + Copyright (C) 1991-2016 Free Software Foundation, Inc. Written by Steve Chamberlain of Cygnus Support. -This file is part of GLD, the Gnu Linker. + This file is part of the GNU Binutils. -GLD is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. -GLD is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with GLD; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -#include "bfd.h" #include "sysdep.h" -#include - -#ifdef ANSI_PROTOTYPES +#include "bfd.h" +#include "bfdlink.h" +#include "libiberty.h" +#include "filenames.h" +#include "demangle.h" #include -#define USE_STDARG 1 -#else -#include -#define USE_STDARG 0 -#endif - #include "ld.h" #include "ldmisc.h" #include "ldexp.h" #include "ldlang.h" -#include "ldgram.h" +#include #include "ldlex.h" #include "ldmain.h" #include "ldfile.h" - - -#if USE_STDARG -static void finfo PARAMS ((FILE *, const char *, ...)); -#else -/* VARARGS*/ -static void finfo (); -#endif -static const char *demangle PARAMS ((const char *string, - int remove_underscore)); +#include "elf-bfd.h" +#include "coff-bfd.h" /* %% literal % - %F error is fatal - %P print program name - %S print script file and linenumber - %E current bfd error or errno - %I filename from a lang_input_statement_type + %A section name from a section %B filename from a bfd - %T symbol name - %X no object output, fail return - %V hex bfd_vma - %v hex bfd_vma, no leading zeros %C clever filename:linenumber with function %D like %C, but no function name + %E current bfd error or errno + %F error is fatal + %G like %D, but only function name + %H like %C but in addition emit section+offset + %I filename from a lang_input_statement_type + %P print program name %R info about a relent - %s arbitrary string, like printf + %S print script file and linenumber from etree_type. + %T symbol name + %V hex bfd_vma + %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces + %X no object output, fail return %d integer, like printf + %ld long, like printf + %lu unsigned long, like printf + %p native (host) void* pointer, like printf + %s arbitrary string, like printf %u integer, like printf + %v hex bfd_vma, no leading zeros */ -static const char * -demangle (string, remove_underscore) - const char *string; - int remove_underscore; -{ - const char *res; - - if (remove_underscore - && output_bfd != NULL - && bfd_get_symbol_leading_char (output_bfd) == string[0]) - ++string; - - /* This is a hack for better error reporting on XCOFF. */ - if (remove_underscore && string[0] == '.') - ++string; - - /* Note that there's a memory leak here, we keep buying memory for - demangled names, and never free. But if you have so many errors - that you run out of VM with the error messages, then there's - something up. */ - res = cplus_demangle (string, DMGL_ANSI | DMGL_PARAMS); - return res ? res : string; -} - -static void -vfinfo (fp, fmt, arg) - FILE *fp; - const char *fmt; - va_list arg; +void +vfinfo (FILE *fp, const char *fmt, va_list arg, bfd_boolean is_warning) { - boolean fatal = false; + bfd_boolean fatal = FALSE; - while (*fmt) - { - while (*fmt != '%' && *fmt != '\0') + while (*fmt != '\0') { - putc(*fmt, fp); - fmt++; - } - - if (*fmt == '%') - { - fmt ++; - switch (*fmt++) - { - default: - fprintf(fp,"%%%c", fmt[-1]); - break; - - case '%': - /* literal % */ - putc('%', fp); - break; - - case 'X': - /* no object output, fail return */ - config.make_executable = false; - break; - - case 'V': - /* hex bfd_vma */ - { - bfd_vma value = va_arg(arg, bfd_vma); - fprintf_vma(fp, value); - } - break; - - case 'v': - /* hex bfd_vma, no leading zeros */ - { - char buf[100]; - char *p = buf; - bfd_vma value = va_arg (arg, bfd_vma); - sprintf_vma (p, value); - while (*p == '0') - p++; - if (!*p) - p--; - fputs (p, fp); - } - break; - - case 'T': - /* Symbol name. */ - { - const char *name = va_arg (arg, const char *); - - if (name != (const char *) NULL) - fprintf (fp, "%s", demangle (name, 1)); - else - fprintf (fp, "no symbol"); - } - break; - - case 'B': - /* filename from a bfd */ - { - bfd *abfd = va_arg(arg, bfd *); - if (abfd->my_archive) { - fprintf(fp,"%s(%s)", abfd->my_archive->filename, - abfd->filename); - } - else { - fprintf(fp,"%s", abfd->filename); - } - } - break; - - case 'F': - /* error is fatal */ - fatal = true; - break; - - case 'P': - /* print program name */ - fprintf(fp,"%s", program_name); - break; - - case 'E': - /* current bfd error or errno */ - fprintf(fp, bfd_errmsg(bfd_get_error ())); - break; - - case 'I': - /* filename from a lang_input_statement_type */ - { - lang_input_statement_type *i = - va_arg(arg,lang_input_statement_type *); - - if (i->the_bfd->my_archive) - fprintf(fp, "(%s)", i->the_bfd->my_archive->filename); - fprintf(fp,"%s", i->local_sym_name); - } - break; - - case 'S': - /* print script file and linenumber */ - if (parsing_defsym) - fprintf (fp, "--defsym %s", lex_string); - else if (ldfile_input_filename != NULL) - fprintf (fp, "%s:%u", ldfile_input_filename, lineno); - else - fprintf (fp, "built in linker script:%u", lineno); - break; - - case 'R': - /* Print all that's interesting about a relent */ - { - arelent *relent = va_arg(arg, arelent *); - - finfo (fp, "%s+0x%v (type %s)", - (*(relent->sym_ptr_ptr))->name, - relent->addend, - relent->howto->name); - } - break; - - case 'C': - case 'D': - /* Clever filename:linenumber with function name if possible, - or section name as a last resort. The arguments are a BFD, - a section, and an offset. */ + const char *str = fmt; + while (*fmt != '%' && *fmt != '\0') + fmt++; + if (fmt != str) + if (fwrite (str, 1, fmt - str, fp)) + { + /* Ignore. */ + } + + if (*fmt == '%') { - static bfd *last_bfd; - static char *last_file = NULL; - static char *last_function = NULL; - bfd *abfd; - asection *section; - bfd_vma offset; - lang_input_statement_type *entry; - asymbol **asymbols; - const char *filename; - const char *functionname; - unsigned int linenumber; - boolean discard_last; - - abfd = va_arg (arg, bfd *); - section = va_arg (arg, asection *); - offset = va_arg (arg, bfd_vma); - - entry = (lang_input_statement_type *) abfd->usrdata; - if (entry != (lang_input_statement_type *) NULL - && entry->asymbols != (asymbol **) NULL) - asymbols = entry->asymbols; - else - { - long symsize; - long symbol_count; - - symsize = bfd_get_symtab_upper_bound (abfd); - if (symsize < 0) - einfo ("%B%F: could not read symbols\n", abfd); - asymbols = (asymbol **) xmalloc (symsize); - symbol_count = bfd_canonicalize_symtab (abfd, asymbols); - if (symbol_count < 0) - einfo ("%B%F: could not read symbols\n", abfd); - if (entry != (lang_input_statement_type *) NULL) - { - entry->asymbols = asymbols; - entry->symbol_count = symbol_count; - } - } - - discard_last = true; - if (bfd_find_nearest_line (abfd, section, asymbols, offset, - &filename, &functionname, &linenumber)) + fmt++; + switch (*fmt++) { - if (functionname != NULL && fmt[-1] == 'C') - { - if (filename == (char *) NULL) - filename = abfd->filename; - - if (last_bfd == NULL - || last_file == NULL - || last_function == NULL - || last_bfd != abfd - || strcmp (last_file, filename) != 0 - || strcmp (last_function, functionname) != 0) - { - /* We use abfd->filename in this initial line, - in case filename is a .h file or something - similarly unhelpful. */ - finfo (fp, "%B: In function `%s':\n", - abfd, demangle (functionname, 1)); - - last_bfd = abfd; - if (last_file != NULL) + case '%': + /* literal % */ + putc ('%', fp); + break; + + case 'X': + /* no object output, fail return */ + config.make_executable = FALSE; + break; + + case 'V': + /* hex bfd_vma */ + { + bfd_vma value = va_arg (arg, bfd_vma); + fprintf_vma (fp, value); + } + break; + + case 'v': + /* hex bfd_vma, no leading zeros */ + { + char buf[100]; + char *p = buf; + bfd_vma value = va_arg (arg, bfd_vma); + sprintf_vma (p, value); + while (*p == '0') + p++; + if (!*p) + p--; + fputs (p, fp); + } + break; + + case 'W': + /* hex bfd_vma with 0x with no leading zeroes taking up + 8 spaces. */ + { + char buf[100]; + bfd_vma value; + char *p; + int len; + + value = va_arg (arg, bfd_vma); + sprintf_vma (buf, value); + for (p = buf; *p == '0'; ++p) + ; + if (*p == '\0') + --p; + len = strlen (p); + while (len < 8) + { + putc (' ', fp); + ++len; + } + fprintf (fp, "0x%s", p); + } + break; + + case 'T': + /* Symbol name. */ + { + const char *name = va_arg (arg, const char *); + + if (name == NULL || *name == 0) + { + fprintf (fp, _("no symbol")); + break; + } + else if (demangling) + { + char *demangled; + + demangled = bfd_demangle (link_info.output_bfd, name, + DMGL_ANSI | DMGL_PARAMS); + if (demangled != NULL) + { + fprintf (fp, "%s", demangled); + free (demangled); + break; + } + } + fprintf (fp, "%s", name); + } + break; + + case 'A': + /* section name from a section */ + { + asection *sec = va_arg (arg, asection *); + bfd *abfd = sec->owner; + const char *group = NULL; + struct coff_comdat_info *ci; + + fprintf (fp, "%s", sec->name); + if (abfd != NULL + && bfd_get_flavour (abfd) == bfd_target_elf_flavour + && elf_next_in_group (sec) != NULL + && (sec->flags & SEC_GROUP) == 0) + group = elf_group_name (sec); + else if (abfd != NULL + && bfd_get_flavour (abfd) == bfd_target_coff_flavour + && (ci = bfd_coff_get_comdat_section (sec->owner, + sec)) != NULL) + group = ci->name; + if (group != NULL) + fprintf (fp, "[%s]", group); + } + break; + + case 'B': + /* filename from a bfd */ + { + bfd *abfd = va_arg (arg, bfd *); + + if (abfd == NULL) + fprintf (fp, "%s generated", program_name); + else if (abfd->my_archive != NULL + && !bfd_is_thin_archive (abfd->my_archive)) + fprintf (fp, "%s(%s)", abfd->my_archive->filename, + abfd->filename); + else + fprintf (fp, "%s", abfd->filename); + } + break; + + case 'F': + /* Error is fatal. */ + fatal = TRUE; + break; + + case 'P': + /* Print program name. */ + fprintf (fp, "%s", program_name); + break; + + case 'E': + /* current bfd error or errno */ + fprintf (fp, "%s", bfd_errmsg (bfd_get_error ())); + break; + + case 'I': + /* filename from a lang_input_statement_type */ + { + lang_input_statement_type *i; + + i = va_arg (arg, lang_input_statement_type *); + if (i->the_bfd->my_archive != NULL + && !bfd_is_thin_archive (i->the_bfd->my_archive)) + fprintf (fp, "(%s)", + bfd_get_filename (i->the_bfd->my_archive)); + fprintf (fp, "%s", i->local_sym_name); + if ((i->the_bfd->my_archive == NULL + || bfd_is_thin_archive (i->the_bfd->my_archive)) + && filename_cmp (i->local_sym_name, i->filename) != 0) + fprintf (fp, " (%s)", i->filename); + } + break; + + case 'S': + /* Print script file and linenumber. */ + { + etree_type node; + etree_type *tp = va_arg (arg, etree_type *); + + if (tp == NULL) + { + tp = &node; + tp->type.filename = ldlex_filename (); + tp->type.lineno = lineno; + } + if (tp->type.filename != NULL) + fprintf (fp, "%s:%u", tp->type.filename, tp->type.lineno); + } + break; + + case 'R': + /* Print all that's interesting about a relent. */ + { + arelent *relent = va_arg (arg, arelent *); + + lfinfo (fp, "%s+0x%v (type %s)", + (*(relent->sym_ptr_ptr))->name, + relent->addend, + relent->howto->name); + } + break; + + case 'C': + case 'D': + case 'G': + case 'H': + /* Clever filename:linenumber with function name if possible. + The arguments are a BFD, a section, and an offset. */ + { + static bfd *last_bfd; + static char *last_file = NULL; + static char *last_function = NULL; + bfd *abfd; + asection *section; + bfd_vma offset; + asymbol **asymbols = NULL; + const char *filename; + const char *functionname; + unsigned int linenumber; + bfd_boolean discard_last; + bfd_boolean done; + + abfd = va_arg (arg, bfd *); + section = va_arg (arg, asection *); + offset = va_arg (arg, bfd_vma); + + if (abfd != NULL) + { + if (!bfd_generic_link_read_symbols (abfd)) + einfo (_("%B%F: could not read symbols: %E\n"), abfd); + + asymbols = bfd_get_outsymbols (abfd); + } + + /* The GNU Coding Standard requires that error messages + be of the form: + + source-file-name:lineno: message + + We do not always have a line number available so if + we cannot find them we print out the section name and + offset instead. */ + discard_last = TRUE; + if (abfd != NULL + && bfd_find_nearest_line (abfd, section, asymbols, offset, + &filename, &functionname, + &linenumber)) + { + if (functionname != NULL + && (fmt[-1] == 'C' || fmt[-1] == 'H')) + { + /* Detect the case where we are printing out a + message for the same function as the last + call to vinfo ("%C"). In this situation do + not print out the ABFD filename or the + function name again. Note - we do still + print out the source filename, as this will + allow programs that parse the linker's output + (eg emacs) to correctly locate multiple + errors in the same source file. */ + if (last_bfd == NULL + || last_file == NULL + || last_function == NULL + || last_bfd != abfd + || (filename != NULL + && filename_cmp (last_file, filename) != 0) + || strcmp (last_function, functionname) != 0) + { + lfinfo (fp, _("%B: In function `%T':\n"), + abfd, functionname); + + last_bfd = abfd; + if (last_file != NULL) + free (last_file); + last_file = NULL; + if (filename) + last_file = xstrdup (filename); + if (last_function != NULL) + free (last_function); + last_function = xstrdup (functionname); + } + discard_last = FALSE; + } + else + lfinfo (fp, "%B:", abfd); + + if (filename != NULL) + fprintf (fp, "%s:", filename); + + done = fmt[-1] != 'H'; + if (functionname != NULL && fmt[-1] == 'G') + lfinfo (fp, "%T", functionname); + else if (filename != NULL && linenumber != 0) + fprintf (fp, "%u%s", linenumber, done ? "" : ":"); + else + done = FALSE; + } + else + { + lfinfo (fp, "%B:", abfd); + done = FALSE; + } + if (!done) + lfinfo (fp, "(%A+0x%v)", section, offset); + + if (discard_last) + { + last_bfd = NULL; + if (last_file != NULL) + { free (last_file); - last_file = buystring (filename); - if (last_function != NULL) + last_file = NULL; + } + if (last_function != NULL) + { free (last_function); - last_function = buystring (functionname); - } - discard_last = false; - if (linenumber != 0) - fprintf (fp, "%s:%u", filename, linenumber); - else - finfo (fp, "%s(%s+0x%v)", filename, section->name, offset); - } - else if (filename == NULL - || strcmp (filename, abfd->filename) == 0) - { - finfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); - if (linenumber != 0) - finfo (fp, "%u", linenumber); - } - else if (linenumber != 0) - finfo (fp, "%B:%s:%u", abfd, filename, linenumber); - else - finfo (fp, "%B(%s+0x%v):%s", abfd, section->name, offset, - filename); - } - else - finfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); - - if (discard_last) - { - last_bfd = NULL; - if (last_file != NULL) + last_function = NULL; + } + } + } + break; + + case 'p': + /* native (host) void* pointer, like printf */ + fprintf (fp, "%p", va_arg (arg, void *)); + break; + + case 's': + /* arbitrary string, like printf */ + fprintf (fp, "%s", va_arg (arg, char *)); + break; + + case 'd': + /* integer, like printf */ + fprintf (fp, "%d", va_arg (arg, int)); + break; + + case 'u': + /* unsigned integer, like printf */ + fprintf (fp, "%u", va_arg (arg, unsigned int)); + break; + + case 'l': + if (*fmt == 'd') { - free (last_file); - last_file = NULL; + fprintf (fp, "%ld", va_arg (arg, long)); + ++fmt; + break; } - if (last_function != NULL) + else if (*fmt == 'u') { - free (last_function); - last_function = NULL; + fprintf (fp, "%lu", va_arg (arg, unsigned long)); + ++fmt; + break; } + /* Fall thru */ + + default: + fprintf (fp, "%%%c", fmt[-1]); + break; } } - break; - - case 's': - /* arbitrary string, like printf */ - fprintf(fp,"%s", va_arg(arg, char *)); - break; - - case 'd': - /* integer, like printf */ - fprintf(fp,"%d", va_arg(arg, int)); - break; - - case 'u': - /* unsigned integer, like printf */ - fprintf(fp,"%u", va_arg(arg, unsigned int)); - break; - } } - } - if (fatal == true) - xexit(1); + if (is_warning && config.fatal_warnings) + config.make_executable = FALSE; + + if (fatal) + xexit (1); } -/* Format info message and print on stdout. */ +/* Format info message and print on stdout. */ /* (You would think this should be called just "info", but then you - would hosed by LynxOS, which defines that name in its libc.) */ + would be hosed by LynxOS, which defines that name in its libc.) */ void -#if USE_STDARG info_msg (const char *fmt, ...) -#else -info_msg (va_alist) - va_dcl -#endif { va_list arg; -#if ! USE_STDARG - const char *fmt; - - va_start (arg); - fmt = va_arg (arg, const char *); -#else va_start (arg, fmt); -#endif - - vfinfo (stdout, fmt, arg); + vfinfo (stdout, fmt, arg, FALSE); va_end (arg); } -/* ('e' for error.) Format info message and print on stderr. */ +/* ('e' for error.) Format info message and print on stderr. */ void -#if USE_STDARG einfo (const char *fmt, ...) -#else -einfo (va_alist) - va_dcl -#endif { va_list arg; -#if ! USE_STDARG - const char *fmt; - - va_start (arg); - fmt = va_arg (arg, const char *); -#else + fflush (stdout); va_start (arg, fmt); -#endif - - vfinfo (stderr, fmt, arg); + vfinfo (stderr, fmt, arg, TRUE); va_end (arg); + fflush (stderr); } -void -info_assert (file, line) - const char *file; - unsigned int line; -{ - einfo ("%F%P: internal error %s %d\n", file, line); -} - -char * -buystring (x) - CONST char *CONST x; +void +info_assert (const char *file, unsigned int line) { - size_t l = strlen(x)+1; - char *r = xmalloc(l); - memcpy(r, x,l); - return r; + einfo (_("%F%P: internal error %s %d\n"), file, line); } -/* ('m' for map) Format info message and print on map. */ +/* ('m' for map) Format info message and print on map. */ void -#if USE_STDARG minfo (const char *fmt, ...) -#else -minfo (va_alist) - va_dcl -#endif { - va_list arg; - -#if ! USE_STDARG - const char *fmt; - va_start (arg); - fmt = va_arg (arg, const char *); -#else - va_start (arg, fmt); -#endif + if (config.map_file != NULL) + { + va_list arg; - vfinfo (config.map_file, fmt, arg); - va_end (arg); + va_start (arg, fmt); + if (fmt[0] == '%' && fmt[1] == '!' && fmt[2] == 0) + { + /* Stash info about --as-needed shared libraries. Print + later so they don't appear intermingled with archive + library info. */ + struct asneeded_minfo *m = xmalloc (sizeof *m); + + m->next = NULL; + m->soname = va_arg (arg, const char *); + m->ref = va_arg (arg, bfd *); + m->name = va_arg (arg, const char *); + *asneeded_list_tail = m; + asneeded_list_tail = &m->next; + } + else + vfinfo (config.map_file, fmt, arg, FALSE); + va_end (arg); + } } -static void -#if USE_STDARG -finfo (FILE *file, const char *fmt, ...) -#else -finfo (va_alist) - va_dcl -#endif +void +lfinfo (FILE *file, const char *fmt, ...) { va_list arg; -#if ! USE_STDARG - FILE *file; - const char *fmt; - - va_start (arg); - file = va_arg (arg, FILE *); - fmt = va_arg (arg, const char *); -#else va_start (arg, fmt); -#endif - - vfinfo (file, fmt, arg); + vfinfo (file, fmt, arg, FALSE); va_end (arg); } /* Functions to print the link map. */ -void -print_space () +void +print_space (void) { fprintf (config.map_file, " "); } -void -print_nl () +void +print_nl (void) { fprintf (config.map_file, "\n"); } -void -print_address (value) - bfd_vma value; +/* A more or less friendly abort message. In ld.h abort is defined to + call this function. */ + +void +ld_abort (const char *file, int line, const char *fn) { - fprintf_vma (config.map_file, value); + if (fn != NULL) + einfo (_("%P: internal error: aborting at %s:%d in %s\n"), + file, line, fn); + else + einfo (_("%P: internal error: aborting at %s:%d\n"), + file, line); + einfo (_("%P%F: please report this bug\n")); + xexit (1); }