/* ldmisc.c Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000 Free Software Foundation, Inc. Written by Steve Chamberlain of Cygnus Support. This file is part of GLD, the Gnu Linker. 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. 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. 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. */ #include "bfd.h" #include "sysdep.h" #include "libiberty.h" #include "demangle.h" #ifdef ANSI_PROTOTYPES #include <stdarg.h> #define USE_STDARG 1 #else #include <varargs.h> #define USE_STDARG 0 #endif #include "ld.h" #include "ldmisc.h" #include "ldexp.h" #include "ldlang.h" #include "ldgram.h" #include "ldlex.h" #include "ldmain.h" #include "ldfile.h" static void vfinfo PARAMS ((FILE *, const char *, va_list)); /* %% 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 %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 %W hex bfd_vma with 0x with no leading zeros taking up 8 spaces %C clever filename:linenumber with function %D like %C, but no function name %G like %D, but only function name %R info about a relent %s arbitrary string, like printf %d integer, like printf %u integer, like printf */ char * demangle (string) const char *string; { char *res; if (output_bfd != NULL && bfd_get_symbol_leading_char (output_bfd) == string[0]) ++string; /* This is a hack for better error reporting on XCOFF, or the MS PE format. Xcoff has a single '.', while the NT PE for PPC has '..'. So we remove all of them. */ while (string[0] == '.') ++string; res = cplus_demangle (string, DMGL_ANSI | DMGL_PARAMS); return res ? res : xstrdup (string); } static void vfinfo (fp, fmt, arg) FILE *fp; const char *fmt; va_list arg; { boolean fatal = false; while (*fmt != '\0') { while (*fmt != '%' && *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 '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 == (const char *) NULL || *name == 0) fprintf (fp, _("no symbol")); else if (! demangling) fprintf (fp, "%s", name); else { char *demangled; demangled = demangle (name); fprintf (fp, "%s", demangled); free (demangled); } } 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, "%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 (bfd_my_archive (i->the_bfd) != NULL) fprintf (fp, "(%s)", bfd_get_filename (bfd_my_archive (i->the_bfd))); fprintf (fp, "%s", i->local_sym_name); if (bfd_my_archive (i->the_bfd) == NULL && strcmp (i->local_sym_name, i->filename) != 0) fprintf (fp, " (%s)", i->filename); } 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 *); lfinfo (fp, "%s+0x%v (type %s)", (*(relent->sym_ptr_ptr))->name, relent->addend, relent->howto->name); } break; case 'C': case 'D': case 'G': /* 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. */ { 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)) { if (functionname != NULL && fmt[-1] == 'G') { lfinfo (fp, "%B:", abfd); if (filename != NULL && strcmp (filename, bfd_get_filename (abfd)) != 0) fprintf (fp, "%s:", filename); lfinfo (fp, "%T", functionname); } else 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. */ lfinfo (fp, _("%B: In function `%T':\n"), abfd, functionname); last_bfd = abfd; if (last_file != NULL) free (last_file); last_file = buystring (filename); if (last_function != NULL) free (last_function); last_function = buystring (functionname); } discard_last = false; if (linenumber != 0) fprintf (fp, "%s:%u", filename, linenumber); else lfinfo (fp, "%s(%s+0x%v)", filename, section->name, offset); } else if (filename == NULL || strcmp (filename, abfd->filename) == 0) { lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); if (linenumber != 0) lfinfo (fp, ":%u", linenumber); } else if (linenumber != 0) lfinfo (fp, "%B:%s:%u", abfd, filename, linenumber); else lfinfo (fp, "%B(%s+0x%v):%s", abfd, section->name, offset, filename); } else lfinfo (fp, "%B(%s+0x%v)", abfd, section->name, offset); if (discard_last) { last_bfd = NULL; if (last_file != NULL) { free (last_file); last_file = NULL; } if (last_function != NULL) { free (last_function); last_function = NULL; } } } 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); } /* 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.) */ 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); va_end (arg); } /* ('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 va_start (arg, fmt); #endif vfinfo (stderr, fmt, arg); va_end (arg); } 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; { size_t l = strlen (x) + 1; char *r = xmalloc (l); memcpy (r, x, l); return r; } /* ('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 vfinfo (config.map_file, fmt, arg); va_end (arg); } void #if USE_STDARG lfinfo (FILE *file, const char *fmt, ...) #else lfinfo (va_alist) va_dcl #endif { 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); va_end (arg); } /* Functions to print the link map. */ void print_space () { fprintf (config.map_file, " "); } void print_nl () { fprintf (config.map_file, "\n"); } /* A more or less friendly abort message. In ld.h abort is defined to call this function. */ void ld_abort (file, line, fn) const char *file; int line; const char *fn; { if (fn != NULL) einfo (_("%P: internal error: aborting at %s line %d in %s\n"), file, line, fn); else einfo (_("%P: internal error: aborting at %s line %d\n"), file, line); einfo (_("%P%F: please report this bug\n")); xexit (1); }