2fe8fb192f
There is important information about booting non-ack images in docs/UPDATING. ack/aout-format images can't be built any more, and booting clang/ELF-format ones is a little different. Updating to the new boot monitor is recommended. Changes in this commit: . drop boot monitor -> allowing dropping ack support . facility to copy ELF boot files to /boot so that old boot monitor can still boot fairly easily, see UPDATING . no more ack-format libraries -> single-case libraries . some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases . drop several ack toolchain commands, but not all support commands (e.g. aal is gone but acksize is not yet). . a few libc files moved to netbsd libc dir . new /bin/date as minix date used code in libc/ . test compile fix . harmonize includes . /usr/lib is no longer special: without ack, /usr/lib plays no kind of special bootstrapping role any more and bootstrapping is done exclusively through packages, so releases depend even less on the state of the machine making them now. . rename nbsd_lib* to lib* . reduce mtree
260 lines
6.2 KiB
C
260 lines
6.2 KiB
C
/* $NetBSD: citrus_mapper_646.c,v 1.4 2003/07/14 11:37:49 tshiozak Exp $ */
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/*-
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* Copyright (c)2003 Citrus Project,
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: citrus_mapper_646.c,v 1.4 2003/07/14 11:37:49 tshiozak Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <sys/queue.h>
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#include "citrus_namespace.h"
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#include "citrus_types.h"
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#include "citrus_bcs.h"
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#include "citrus_module.h"
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#include "citrus_region.h"
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#include "citrus_memstream.h"
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#include "citrus_mmap.h"
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#include "citrus_hash.h"
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#include "citrus_mapper.h"
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#include "citrus_mapper_646.h"
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/* ---------------------------------------------------------------------- */
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_CITRUS_MAPPER_DECLS(mapper_646);
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_CITRUS_MAPPER_DEF_OPS(mapper_646);
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/* ---------------------------------------------------------------------- */
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#define ILSEQ 0xFFFFFFFE
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#define INVALID 0xFFFFFFFF
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#define SPECIALS(x) \
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x(0x23) \
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x(0x24) \
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x(0x40) \
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x(0x5B) \
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x(0x5C) \
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x(0x5D) \
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x(0x5E) \
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x(0x60) \
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x(0x7B) \
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x(0x7C) \
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x(0x7D) \
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x(0x7E)
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#define INDEX(x) INDEX_##x,
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enum {
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SPECIALS(INDEX)
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NUM_OF_SPECIALS
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};
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struct _citrus_mapper_646 {
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int m6_forward;
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_index_t m6_map[NUM_OF_SPECIALS];
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};
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int
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_citrus_mapper_646_mapper_getops(struct _citrus_mapper_ops *ops,
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size_t lenops, uint32_t expected_version)
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{
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if (expected_version<_CITRUS_MAPPER_ABI_VERSION || lenops<sizeof(*ops))
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return EINVAL;
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memcpy(ops, &_citrus_mapper_646_mapper_ops,
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sizeof(_citrus_mapper_646_mapper_ops));
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return 0;
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}
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#define T_COMM '#'
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static int
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parse_file(struct _citrus_mapper_646 *m6, const char *path)
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{
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int ret, i;
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struct _region r;
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struct _memstream ms;
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const char *p;
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size_t len;
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char buf[PATH_MAX];
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ret = _map_file(&r, path);
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if (ret)
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return ret;
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_memstream_bind(&ms, &r);
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for (i=0; i<NUM_OF_SPECIALS; i++) {
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retry:
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p = _memstream_getln(&ms, &len);
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if (p==NULL) {
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ret = EINVAL;
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break;
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}
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p = _bcs_skip_ws_len(p, &len);
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if (*p == T_COMM || len==0)
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goto retry;
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if (!_bcs_isdigit(*p)) {
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ret = EINVAL;
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break;
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}
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snprintf(buf, sizeof(buf), "%.*s", (int)len, p);
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m6->m6_map[i] = strtoul(buf, (char **)&p, 0);
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p = _bcs_skip_ws(buf);
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if (*p != T_COMM && !*p) {
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ret = EINVAL;
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break;
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}
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}
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_unmap_file(&r);
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return ret;
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};
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static int
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parse_var(struct _citrus_mapper_646 *m6, struct _memstream *ms,
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const char *dir)
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{
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struct _region r;
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char path[PATH_MAX];
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m6->m6_forward = 1;
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_memstream_skip_ws(ms);
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/* whether backward */
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if (_memstream_peek(ms) == '!') {
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_memstream_getc(ms);
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m6->m6_forward = 0;
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}
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/* get description file path */
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_memstream_getregion(ms, &r, _memstream_remainder(ms));
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snprintf(path, sizeof(path), "%s/%.*s",
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dir, (int)_region_size(&r), (char *)_region_head(&r));
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/* remove trailing white spaces */
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path[_bcs_skip_nonws(path)-path] = '\0';
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return parse_file(m6, path);
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}
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static int
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/*ARGSUSED*/
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_citrus_mapper_646_mapper_init(struct _citrus_mapper_area *__restrict ma,
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struct _citrus_mapper * __restrict cm,
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const char * __restrict dir,
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const void * __restrict var, size_t lenvar,
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struct _citrus_mapper_traits * __restrict mt,
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size_t lenmt)
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{
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struct _citrus_mapper_646 *m6;
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struct _memstream ms;
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struct _region r;
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int ret;
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_DIAGASSERT(cm && dir && mt);
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if (lenmt<sizeof(*mt))
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return EINVAL;
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m6 = malloc(sizeof(*m6));
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if (m6 == NULL)
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return errno;
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_region_init(&r, (void *)var, lenvar);
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_memstream_bind(&ms, &r);
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ret = parse_var(m6, &ms, dir);
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if (ret) {
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free(m6);
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return ret;
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}
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cm->cm_closure = m6;
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mt->mt_src_max = mt->mt_dst_max = 1; /* 1:1 converter */
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mt->mt_state_size = 0; /* stateless */
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return 0;
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}
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static void
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/*ARGSUSED*/
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_citrus_mapper_646_mapper_uninit(struct _citrus_mapper *cm)
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{
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if (cm && cm->cm_closure) {
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free(cm->cm_closure);
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}
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}
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static int
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/*ARGSUSED*/
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_citrus_mapper_646_mapper_convert(struct _citrus_mapper * __restrict cm,
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_index_t * __restrict dst, _index_t src,
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void * __restrict ps)
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{
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struct _citrus_mapper_646 *m6;
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_DIAGASSERT(cm && cm->cm_closure);
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m6 = cm->cm_closure;
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if (m6->m6_forward) {
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/* forward */
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if (src>=0x80)
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return _MAPPER_CONVERT_ILSEQ;
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#define FORWARD(x) \
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if (src==(x)) { \
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if (m6->m6_map[INDEX_##x]==INVALID) \
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return _MAPPER_CONVERT_NONIDENTICAL; \
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*dst = m6->m6_map[INDEX_##x]; \
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return 0; \
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} else
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SPECIALS(FORWARD);
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*dst = src;
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} else {
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/* backward */
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#define BACKWARD(x) \
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if (m6->m6_map[INDEX_##x]!=INVALID && src==m6->m6_map[INDEX_##x]) { \
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*dst = (x); \
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return 0; \
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} else if (src==(x)) \
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return _MAPPER_CONVERT_ILSEQ; \
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else
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SPECIALS(BACKWARD);
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if (src>=0x80)
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return _MAPPER_CONVERT_NONIDENTICAL;
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*dst = src;
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}
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return _MAPPER_CONVERT_SUCCESS;
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}
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static void
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/*ARGSUSED*/
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_citrus_mapper_646_mapper_init_state(struct _citrus_mapper * __restrict cm,
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void * __restrict ps)
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{
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}
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