/* ldmisc.c Copyright (C) 1991, 92, 93, 94 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 /* this collection of routines wants to use the Unix style varargs use special abbreviated portion of varargs.h */ #ifdef WINDOWS_NT /* Since macro __STDC__ is defined, the compiler will raise and error if VARARGS.H from mstools\h is included. Since we only need a portion of this header file, it has been incorporated into local header file xvarargs.h */ #include "xvarargs.h" #else #include #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" /* VARARGS*/ static void finfo (); static const char *demangle PARAMS ((const char *string, int remove_underscore)); /* %% 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 %C clever filename:linenumber with function %D like %C, but no function name %R info about a relent %s arbitrary string, like printf %d integer, like printf %u integer, like printf */ static const char * demangle (string, remove_underscore) const char *string; int remove_underscore; { const char *res; if (remove_underscore && output_bfd) { if (bfd_get_symbol_leading_char (output_bfd) == 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; char *fmt; va_list arg; { boolean fatal = false; while (*fmt) { 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 '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. */ { 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] == '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) 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 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) { 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 info_msg(va_alist) va_dcl { char *fmt; va_list arg; va_start(arg); fmt = va_arg(arg, char *); vfinfo(stdout, fmt, arg); va_end(arg); } /* ('e' for error.) Format info message and print on stderr. */ void einfo(va_alist) va_dcl { char *fmt; va_list arg; va_start(arg); fmt = va_arg(arg, char *); vfinfo(stderr, fmt, arg); va_end(arg); } void info_assert(file, line) 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 minfo(va_alist) va_dcl { char *fmt; va_list arg; va_start(arg); fmt = va_arg(arg, char *); vfinfo(config.map_file, fmt, arg); va_end(arg); } static void finfo (va_alist) va_dcl { char *fmt; FILE *file; va_list arg; va_start (arg); file = va_arg (arg, FILE *); fmt = va_arg (arg, char *); 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"); } void print_address (value) bfd_vma value; { fprintf_vma(config.map_file, value); }