elk/src/stab-hp9k800.c

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/* stab-hp9k800.c
*
* $Id$
*
* Copyright 1990, 1991, 1992, 1993, 1994, 1995, Oliver Laumann, Berlin
* Copyright 2002, 2003 Sam Hocevar <sam@hocevar.net>, Paris
*
* This software was derived from Elk 1.2, which was Copyright 1987, 1988,
* 1989, Nixdorf Computer AG and TELES GmbH, Berlin (Elk 1.2 has been written
* by Oliver Laumann for TELES Telematic Services, Berlin, in a joint project
* between TELES and Nixdorf Microprocessor Engineering, Berlin).
*
* Oliver Laumann, TELES GmbH, Nixdorf Computer AG and Sam Hocevar, as co-
* owners or individual owners of copyright in this software, grant to any
* person or company a worldwide, royalty free, license to
*
* i) copy this software,
* ii) prepare derivative works based on this software,
* iii) distribute copies of this software or derivative works,
* iv) perform this software, or
* v) display this software,
*
* provided that this notice is not removed and that neither Oliver Laumann
* nor Teles nor Nixdorf are deemed to have made any representations as to
* the suitability of this software for any purpose nor are held responsible
* for any defects of this software.
*
* THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
*/
#include AOUT_H
#include <sys/types.h>
extern void Free_Symbols (SYMTAB *);
SYMTAB *Snarf_Symbols (FILE *f, struct header *hp) {
SYMTAB *tab;
register SYM *sp, **nextp;
register int n;
struct symbol_dictionary_record r;
tab = (SYMTAB *)Safe_Malloc (sizeof (SYMTAB));
tab->first = 0;
nextp = &tab->first;
tab->strings = Safe_Malloc (hp->symbol_strings_size);
(void)fseek (f, (long)hp->symbol_strings_location, SEEK_SET);
if (fread (tab->strings, hp->symbol_strings_size, 1, f) != 1) {
(void)fclose (f);
Free_Symbols (tab);
Primitive_Error ("corrupt string table in object file");
}
(void)fseek (f, (long)hp->symbol_location, SEEK_SET);
for (n = hp->symbol_total; n > 0; n--) {
if (fread ((char *)&r, sizeof r, 1, f) != 1) {
(void)fclose (f);
Free_Symbols (tab);
Primitive_Error ("corrupt symbol table in object file");
}
if (r.symbol_type != ST_CODE)
continue;
if (r.symbol_scope != SS_UNIVERSAL)
continue;
sp = (SYM *)Safe_Malloc (sizeof (SYM));
sp->name = tab->strings + r.name.n_strx;
sp->value = r.symbol_value & ~3; /* mask out privilege level */
*nextp = sp;
nextp = &sp->next;
*nextp = 0;
}
return tab;
}
SYMTAB *Open_File_And_Snarf_Symbols (char *name) {
struct header hdr;
FILE *f;
SYMTAB *tab;
if ((f = fopen (name, "r")) == NULL)
Primitive_Error ("can't open a.out file");
if (fread ((char *)&hdr, sizeof hdr, 1, f) != 1) {
(void)fclose (f);
Primitive_Error ("can't read a.out header");
}
tab = Snarf_Symbols (f, &hdr);
(void)fclose (f);
return tab;
}