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- /* 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, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "bfd.h"
- #include "sysdep.h"
- #include <varargs.h>
- #include <demangle.h>
-
- #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 (ldfile_input_filename) {
- fprintf(fp,"%s:%u", ldfile_input_filename, 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", abfd);
- asymbols = (asymbol **) xmalloc (symsize);
- symbol_count = bfd_canonicalize_symtab (abfd, asymbols);
- if (symbol_count < 0)
- einfo ("%B%F: could not read symbols", 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 (filename == (char *) NULL)
- filename = abfd->filename;
-
- if (functionname != NULL && fmt[-1] == 'C')
- {
- 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;
- fprintf (fp, "%s:%u", filename, linenumber);
- }
- else if (linenumber != 0)
- finfo (fp, "%B:%s:%u", abfd, filename, linenumber);
- else
- finfo (fp, "%s(%s+0x%v)", filename, section->name, offset);
- }
- else
- finfo (fp, "%s(%s+0x%v)", abfd->filename, 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);
- }
-