GC the a.out support in DDB, nothing anywhere would pull this

file into a build.

1 files changed, 0 insertions, 402 deletions

diff --git a/sys/ddb/db_aout.c b/sys/ddb/db_aout.c
deleted file mode 100644
index 21d13be..0000000
--- a/sys/ddb/db_aout.c
+++ /dev/null
@@ -1,402 +0,0 @@
-/*
- * Mach Operating System
- * Copyright (c) 1991,1990 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie the
- * rights to redistribute these changes.
- *
- * $FreeBSD$
- */
-
-/*
- *	Author: David B. Golub, Carnegie Mellon University
- *	Date:	7/90
- */
-/*
- * Symbol table routines for a.out format files.
- */
-
-#if !defined(__ELF__) && !defined(__alpha__)
-
-#include <sys/param.h>
-#include <sys/systm.h>
-
-#include <machine/bootinfo.h>
-
-#include <ddb/ddb.h>
-#include <ddb/db_sym.h>
-
-#define _AOUT_INCLUDE_
-#include <nlist.h>
-#include <stab.h>
-
-/*
- * An a.out symbol table as loaded into the kernel debugger:
- *
- * symtab	-> size of symbol entries, in bytes
- * sp		-> first symbol entry
- *		   ...
- * ep		-> last symbol entry + 1
- * strtab	== start of string table
- *		   size of string table in bytes,
- *		   including this word
- *		-> strings
- */
-
-static void	X_db_sym_init __P((int *symtab, char *esymtab, char *name));
-/*
- * Find pointers to the start and end of the symbol entries,
- * given a pointer to the start of the symbol table.
- */
-#define	db_get_aout_symtab(symtab, sp, ep) \
-	(sp = (struct nlist *)((symtab) + 1), \
-	 ep = (struct nlist *)((char *)sp + *(symtab)))
-
-static void
-X_db_sym_init(symtab, esymtab, name)
-	int *	symtab;		/* pointer to start of symbol table */
-	char *	esymtab;	/* pointer to end of string table,
-				   for checking - rounded up to integer
-				   boundary */
-	char *	name;
-{
-	register struct nlist	*sym_start, *sym_end;
-	register struct nlist	*sp;
-	register char *	strtab;
-	register int	strlen;
-
-	if (*symtab < 4) {
-		printf ("DDB: no symbols\n");
-		return;
-	}
-
-	db_get_aout_symtab(symtab, sym_start, sym_end);
-
-	strtab = (char *)sym_end;
-	strlen = *(int *)strtab;
-
-	if (strtab + ((strlen + sizeof(int) - 1) & ~(sizeof(int)-1))
-	    != esymtab)
-	{
-	    db_printf("[ %s symbol table not valid ]\n", name);
-	    return;
-	}
-
-	db_printf("[ preserving %#x bytes of %s symbol table ]\n",
-		esymtab - (char *)symtab, name);
-
-	for (sp = sym_start; sp < sym_end; sp++) {
-	    register int strx;
-	    strx = sp->n_un.n_strx;
-	    if (strx != 0) {
-		if (strx > strlen) {
-		    db_printf("Bad string table index (%#x)\n", strx);
-		    sp->n_un.n_name = 0;
-		    continue;
-		}
-		sp->n_un.n_name = strtab + strx;
-	    }
-	}
-
-	db_add_symbol_table((char *)sym_start, (char *)sym_end, name,
-			    (char *)symtab);
-}
-
-c_db_sym_t
-X_db_lookup(stab, symstr)
-	db_symtab_t	*stab;
-	const char *	symstr;
-{
-	register struct nlist *sp, *ep;
-
-	sp = (struct nlist *)stab->start;
-	ep = (struct nlist *)stab->end;
-
-	for (; sp < ep; sp++) {
-	    if (sp->n_un.n_name == 0)
-		continue;
-	    if ((sp->n_type & N_STAB) == 0 &&
-		sp->n_un.n_name != 0 &&
-		db_eqname(sp->n_un.n_name, symstr, '_'))
-	    {
-		return ((db_sym_t)sp);
-	    }
-	}
-	return ((db_sym_t)0);
-}
-
-c_db_sym_t
-X_db_search_symbol(symtab, off, strategy, diffp)
-	db_symtab_t *	symtab;
-	register
-	db_addr_t	off;
-	db_strategy_t	strategy;
-	db_expr_t	*diffp;		/* in/out */
-{
-	register unsigned int	diff = *diffp;
-	register struct nlist	*symp = 0;
-	register struct nlist	*sp, *ep;
-
-	sp = (struct nlist *)symtab->start;
-	ep = (struct nlist *)symtab->end;
-
-	for (; sp < ep; sp++) {
-	    if (sp->n_un.n_name == 0)
-		continue;
-	    if ((sp->n_type & N_STAB) != 0 || (sp->n_type & N_TYPE) == N_FN)
-		continue;
-	    if (off >= sp->n_value) {
-		if (off - sp->n_value < diff) {
-		    diff = off - sp->n_value;
-		    symp = sp;
-		    if (diff == 0) {
-		        if (strategy == DB_STGY_PROC &&
-					sp->n_type == (N_TEXT|N_EXT))
-		 	    break;
-			if (strategy == DB_STGY_ANY &&
-					(sp->n_type & N_EXT))
-			    break;
-		    }
-		}
-		else if (off - sp->n_value == diff) {
-		    if (symp == 0)
-			symp = sp;
-		    else if ((symp->n_type & N_EXT) == 0 &&
-				(sp->n_type & N_EXT) != 0)
-			symp = sp;	/* pick the external symbol */
-		}
-	    }
-	}
-	if (symp == 0) {
-	    *diffp = off;
-	}
-	else {
-	    *diffp = diff;
-	}
-	return ((db_sym_t)symp);
-}
-
-/*
- * Return the name and value for a symbol.
- */
-void
-X_db_symbol_values(symtab, sym, namep, valuep)
-	db_symtab_t	*symtab;
-	c_db_sym_t	sym;
-	const char	**namep;
-	db_expr_t	*valuep;
-{
-	register const struct nlist *sp;
-
-	sp = (const struct nlist *)sym;
-	if (namep)
-	    *namep = sp->n_un.n_name;
-	if (valuep)
-	    *valuep = sp->n_value;
-}
-
-
-boolean_t
-X_db_line_at_pc(symtab, cursym, filename, linenum, off)
-	db_symtab_t *	symtab;
-	c_db_sym_t	cursym;
-	char 		**filename;
-	int 		*linenum;
-	db_expr_t	off;
-{
-	register struct nlist	*sp, *ep;
-	unsigned long		sodiff = -1UL, lndiff = -1UL, ln = 0;
-	char			*fname = NULL;
-
-	sp = (struct nlist *)symtab->start;
-	ep = (struct nlist *)symtab->end;
-
-/*
- * XXX - this used to remove "gcc_compiled.", but that is obsolete.  We
- * now remove unwanted names using symorder.
- */
-#define NEWSRC(str)	0
-
-	for (; sp < ep; sp++) {
-
-	    /*
-	     * Prevent bogus linenumbers in case module not compiled
-	     * with debugging options
-	     */
-#if 0
-	    if (sp->n_value <= off && (off - sp->n_value) <= sodiff &&
-		NEWSRC(sp->n_un.n_name)) {
-#endif
-	    if ((sp->n_type & N_TYPE) == N_FN || NEWSRC(sp->n_un.n_name)) {
-		sodiff = lndiff = -1UL;
-		ln = 0;
-		fname = NULL;
-	    }
-
-	    if (sp->n_type == N_SO && *sp->n_un.n_name != '/') {
-		if (sp->n_value <= off && (off - sp->n_value) < sodiff) {
-			sodiff = off - sp->n_value;
-			fname = sp->n_un.n_name;
-		}
-		continue;
-	    }
-
-	    if (sp->n_type != N_SLINE)
-		continue;
-
-	    if (sp->n_value > off)
-		break;
-
-	    if (off - sp->n_value < lndiff) {
-		lndiff = off - sp->n_value;
-		ln = sp->n_desc;
-	    }
-	}
-
-	if (fname != NULL && ln != 0) {
-		*filename = fname;
-		*linenum = ln;
-		return TRUE;
-	}
-
-	return (FALSE);
-}
-
-boolean_t
-X_db_sym_numargs(symtab, cursym, nargp, argnamep)
-	db_symtab_t *	symtab;
-	c_db_sym_t	cursym;
-	int		*nargp;
-	char		**argnamep;
-{
-	register struct nlist	*sp, *ep;
-	u_long			addr;
-	int			maxnarg = *nargp, nargs = 0;
-
-	if (cursym == NULL)
-		return FALSE;
-
-	addr = ((const struct nlist *)cursym)->n_value;
-	sp = (struct nlist *)symtab->start;
-	ep = (struct nlist *)symtab->end;
-
-	for (; sp < ep; sp++) {
-	    if (sp->n_type == N_FUN && sp->n_value == addr) {
-		while (++sp < ep && sp->n_type == N_PSYM) {
-			if (nargs >= maxnarg)
-				break;
-			nargs++;
-			*argnamep++ = sp->n_un.n_name?sp->n_un.n_name:"???";
-			{
-			/* XXX - remove trailers */
-			char *cp = *(argnamep-1);
-			while (*cp != '\0' && *cp != ':') cp++;
-			if (*cp == ':') *cp = '\0';
-			}
-		}
-		*nargp = nargs;
-		return TRUE;
-	    }
-	}
-	return FALSE;
-}
-
-/*
- * Initialization routine for a.out files.
- */
-void
-kdb_init()
-{
-#ifdef __i386__
-	if (bootinfo.bi_esymtab != bootinfo.bi_symtab)
-		X_db_sym_init((int *)bootinfo.bi_symtab,
-			      (char *)((bootinfo.bi_esymtab + sizeof(int) - 1)
-				       & ~(sizeof(int) - 1)),
-			      "kernel");
-#endif
-}
-
-#if 0
-/*
- * Read symbol table from file.
- * (should be somewhere else)
- */
-#include <boot_ufs/file_io.h>
-#include <vm/vm_kern.h>
-
-read_symtab_from_file(fp, symtab_name)
-	struct file	*fp;
-	char *		symtab_name;
-{
-	vm_size_t	resid;
-	kern_return_t	result;
-	vm_offset_t	symoff;
-	vm_size_t	symsize;
-	vm_offset_t	stroff;
-	vm_size_t	strsize;
-	vm_size_t	table_size;
-	vm_offset_t	symtab;
-
-	if (!get_symtab(fp, &symoff, &symsize)) {
-	    boot_printf("[ error %d reading %s file header ]\n",
-			result, symtab_name);
-	    return;
-	}
-
-	stroff = symoff + symsize;
-	result = read_file(fp, (vm_offset_t)stroff,
-			(vm_offset_t)&strsize, sizeof(strsize), &resid);
-	if (result || resid) {
-	    boot_printf("[ no valid symbol table present for %s ]\n",
-		symtab_name);
-		return;
-	}
-
-	table_size = sizeof(int) + symsize + strsize;
-	table_size = (table_size + sizeof(int)-1) & ~(sizeof(int)-1);
-
-	symtab = kmem_alloc_wired(kernel_map, table_size);
-
-	*(int *)symtab = symsize;
-
-	result = read_file(fp, symoff,
-			symtab + sizeof(int), symsize, &resid);
-	if (result || resid) {
-	    boot_printf("[ error %d reading %s symbol table ]\n",
-			result, symtab_name);
-	    return;
-	}
-
-	result = read_file(fp, stroff,
-			symtab + sizeof(int) + symsize, strsize, &resid);
-	if (result || resid) {
-	    boot_printf("[ error %d reading %s string table ]\n",
-			result, symtab_name);
-	    return;
-	}
-
-	X_db_sym_init((int *)symtab,
-			(char *)(symtab + table_size),
-			symtab_name);
-
-}
-#endif
-#endif