54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
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#include <filehdr.h>
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#include <syms.h>
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#undef TYPE /* ldfnc.h defines a TYPE macro. */
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#include <ldfcn.h>
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SYMTAB *Snarf_Symbols (lf, ep) LDFILE *lf; {
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SYMTAB *tab;
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register SYM *sp, **nextp;
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SYMENT sym;
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long inx;
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char *p;
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extern char *ldgetname();
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if (ldtbseek (lf) == FAILURE) {
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ldclose (lf);
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Primitive_Error ("can't ldtbseek");
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}
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tab = (SYMTAB *)Safe_Malloc (sizeof (SYMTAB));
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tab->first = 0;
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tab->strings = 0;
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nextp = &tab->first;
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while (1) {
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inx = ldtbindex (lf);
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if (ldtbread (lf, inx, &sym) == FAILURE)
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break;
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if (sym.n_scnum == N_UNDEF || sym.n_scnum == N_DEBUG
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|| sym.n_scnum > HEADER(lf).f_nscns || sym.n_sclass != C_EXT)
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continue;
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if ((p = ldgetname (lf, &sym)) == NULL)
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continue;
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sp = (SYM *)Safe_Malloc (sizeof (SYM));
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sp->name = Safe_Malloc (strlen (p) + 1);
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strcpy (sp->name, p);
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sp->value = sym.n_value;
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*nextp = sp;
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nextp = &sp->next;
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*nextp = 0;
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}
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return tab;
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}
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#ifdef INIT_OBJECTS
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SYMTAB *Open_File_And_Snarf_Symbols (name) char *name; {
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LDFILE *f;
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SYMTAB *tab;
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if ((f = ldopen (name, NULL)) == FAILURE)
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Primitive_Error ("can't ldopen a.out file");
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tab = Snarf_Symbols (f);
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ldclose (f);
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return tab;
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}
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#endif /* INIT_OBJECTS */
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