struct lib_tdata
{
+ /* Standard tdata for an archive. But we don't use many fields. */
+ struct artdata artdata;
+
/* Major version. */
unsigned char ver;
struct carsym *modules;
bfd **cache;
- /* Vector of symbols (archive map), already sorted. */
- unsigned int nbr_syms;
- struct carsym *syms;
-
/* DCX (decompression) data. */
unsigned int nbr_dcxsbm;
struct dcxsbm_desc *dcxsbm;
static const unsigned char eotdesc[] = { 0x03, 0x00, 0x77, 0x00, 0x77, 0x00 };
+/* Describe the current state of carsym entries while building the archive
+ table of content. Things are simple with Alpha archives as the number
+ of entries is known, but with IA64 archives a entry can make a reference
+ to severals members. Therefore we must be able to extend the table on the
+ fly, but it should be allocated on the bfd - which doesn't support realloc.
+ To reduce the overhead, the table is initially allocated in the BFD's
+ objalloc and extended if necessary on the heap. In the later case, it
+ is finally copied to the BFD's objalloc so that it will automatically be
+ freed. */
+
+struct carsym_mem
+{
+ /* The table of content. */
+ struct carsym *idx;
+
+ /* Number of entries used in the table. */
+ unsigned int nbr;
+
+ /* Maximum number of entries. */
+ unsigned int max;
+
+ /* If true, the table was reallocated on the heap. If false, it is still
+ in the BFD's objalloc. */
+ bfd_boolean realloced;
+};
+
+/* Simply add a name to the index. */
+
+static bfd_boolean
+vms_add_index (struct carsym_mem *cs, char *name,
+ unsigned int idx_vbn, unsigned int idx_off)
+{
+ if (cs->nbr == cs->max)
+ {
+ struct carsym *n;
+
+ cs->max = 2 * cs->max + 32;
+
+ if (!cs->realloced)
+ {
+ n = bfd_malloc2 (cs->max, sizeof (struct carsym));
+ if (n == NULL)
+ return FALSE;
+ memcpy (n, cs->idx, cs->nbr * sizeof (struct carsym));
+ /* And unfortunately we can't free cs->idx. */
+ }
+ else
+ {
+ n = bfd_realloc_or_free (cs->idx, cs->nbr * sizeof (struct carsym));
+ if (n == NULL)
+ return FALSE;
+ }
+ cs->idx = n;
+ cs->realloced = TRUE;
+ }
+ cs->idx[cs->nbr].file_offset = (idx_vbn - 1) * VMS_BLOCK_SIZE + idx_off;
+ cs->idx[cs->nbr].name = name;
+ cs->nbr++;
+ return TRUE;
+}
+
+/* Follow all member of a lns list (pointed by RFA) and add indexes for
+ NAME. Return FALSE in case of error. */
+
+static bfd_boolean
+vms_add_indexes_from_list (bfd *abfd, struct carsym_mem *cs, char *name,
+ struct vms_rfa *rfa)
+{
+ struct vms_lns lns;
+ unsigned int vbn;
+ file_ptr off;
+
+ while (1)
+ {
+ vbn = bfd_getl32 (rfa->vbn);
+ if (vbn == 0)
+ return TRUE;
+
+ /* Read the LHS. */
+ off = (vbn - 1) * VMS_BLOCK_SIZE + bfd_getl16 (rfa->offset);
+ if (bfd_seek (abfd, off, SEEK_SET) != 0
+ || bfd_bread (&lns, sizeof (lns), abfd) != sizeof (lns))
+ return FALSE;
+
+ if (!vms_add_index (cs, name,
+ bfd_getl32 (lns.modrfa.vbn),
+ bfd_getl16 (lns.modrfa.offset)))
+ return FALSE;
+
+ rfa = &lns.nxtrfa;
+ }
+}
+
/* Read index block VBN and put the entry in **IDX (which is updated).
If the entry is indirect, recurse. */
static bfd_boolean
-vms_traverse_index (bfd *abfd, unsigned int vbn, struct carsym **idx)
+vms_traverse_index (bfd *abfd, unsigned int vbn, struct carsym_mem *cs)
{
struct vms_indexdef indexdef;
- unsigned int used;
file_ptr off;
- unsigned int i;
+ unsigned char *p;
+ unsigned char *endp;
/* Read the index block. */
off = (vbn - 1) * VMS_BLOCK_SIZE;
return FALSE;
/* Traverse it. */
- used = bfd_getl16 (indexdef.used);
- for (i = 0; i < used;)
+ p = &indexdef.keys[0];
+ endp = p + bfd_getl16 (indexdef.used);
+ while (p < endp)
{
unsigned int idx_vbn;
unsigned int idx_off;
unsigned int keylen;
unsigned char *keyname;
- unsigned char *ridx = (unsigned char *)&indexdef.keys[i];
- unsigned int len;
-
- idx_vbn = bfd_getl32 (ridx);
- idx_off = bfd_getl16 (ridx + 4);
-
- /* Illegal value. */
- if (idx_vbn == 0)
- return FALSE;
+ unsigned int flags;
/* Extract key length. */
- if (bfd_libdata (abfd)->ver == 3)
+ if (bfd_libdata (abfd)->ver == LBR_MAJORID)
{
- keylen = ridx[6];
- len = 7;
+ struct vms_idx *ridx = (struct vms_idx *)p;
+
+ idx_vbn = bfd_getl32 (ridx->rfa.vbn);
+ idx_off = bfd_getl16 (ridx->rfa.offset);
+
+ keylen = ridx->keylen;
+ flags = 0;
+ keyname = ridx->keyname;
}
- else if (bfd_libdata (abfd)->ver == 4)
+ else if (bfd_libdata (abfd)->ver == LBR_ELFMAJORID)
{
- keylen = bfd_getl16 (ridx + 6);
- len = 9;
+ struct vms_elfidx *ridx = (struct vms_elfidx *)p;
+
+ idx_vbn = bfd_getl32 (ridx->rfa.vbn);
+ idx_off = bfd_getl16 (ridx->rfa.offset);
+
+ keylen = bfd_getl16 (ridx->keylen);
+ flags = ridx->flags;
+ keyname = ridx->keyname;
}
else
return FALSE;
- keyname = ridx + len;
- i += len + keylen;
+ /* Illegal value. */
+ if (idx_vbn == 0)
+ return FALSE;
+
+ /* Long symbol names are not yet supported. */
+ if (flags & ELFIDX__SYMESC)
+ return FALSE;
if (idx_off == RFADEF__C_INDEX)
{
/* Indirect entry. Recurse. */
- if (!vms_traverse_index (abfd, idx_vbn, idx))
+ if (!vms_traverse_index (abfd, idx_vbn, cs))
return FALSE;
}
else
return FALSE;
memcpy (name, keyname, keylen);
name[keylen] = 0;
- (*idx)->file_offset = (idx_vbn - 1) * VMS_BLOCK_SIZE + idx_off;
- (*idx)->name = name;
- (*idx)++;
+
+ if (flags & ELFIDX__LISTRFA)
+ {
+ struct vms_lhs lhs;
+
+ /* Read the LHS. */
+ off = (idx_vbn - 1) * VMS_BLOCK_SIZE + idx_off;
+ if (bfd_seek (abfd, off, SEEK_SET) != 0
+ || bfd_bread (&lhs, sizeof (lhs), abfd) != sizeof (lhs))
+ return FALSE;
+
+ /* FIXME: this adds extra entries that were not accounted. */
+ if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.ng_g_rfa))
+ return FALSE;
+ if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.ng_wk_rfa))
+ return FALSE;
+ if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.g_g_rfa))
+ return FALSE;
+ if (!vms_add_indexes_from_list (abfd, cs, name, &lhs.g_wk_rfa))
+ return FALSE;
+ }
+ else
+ {
+ if (!vms_add_index (cs, name, idx_vbn, idx_off))
+ return FALSE;
+ }
}
+
+ /* Point to the next index entry. */
+ p = keyname + keylen;
}
return TRUE;
/* Read index #IDX, which must have NBREL entries. */
static struct carsym *
-vms_lib_read_index (bfd *abfd, int idx, unsigned int nbrel)
+vms_lib_read_index (bfd *abfd, int idx, unsigned int *nbrel)
{
- struct carsym *res;
- struct carsym *el;
struct vms_idd idd;
unsigned int flags;
unsigned int vbn;
+ struct carsym *csbuf;
+ struct carsym_mem csm;
/* Read index desription. */
if (bfd_seek (abfd, LHD_IDXDESC + idx * IDD_LENGTH, SEEK_SET) != 0
|| !(flags & IDD__FLAGS_VARLENIDX))
return NULL;
- res = bfd_alloc (abfd, nbrel * sizeof (struct carsym));
- if (res == NULL)
+ csbuf = bfd_alloc (abfd, *nbrel * sizeof (struct carsym));
+ if (csbuf == NULL)
return NULL;
- el = res;
+ csm.max = *nbrel;
+ csm.nbr = 0;
+ csm.realloced = FALSE;
+ csm.idx = csbuf;
/* Note: if the index is empty, there is no block to traverse. */
vbn = bfd_getl32 (idd.vbn);
- if (vbn != 0 && !vms_traverse_index (abfd, vbn, &el))
+ if (vbn != 0 && !vms_traverse_index (abfd, vbn, &csm))
{
- bfd_release (abfd, res);
+ if (csm.realloced && csm.idx != NULL)
+ free (csm.idx);
+
+ /* Note: in case of error, we can free what was allocated on the
+ BFD's objalloc. */
+ bfd_release (abfd, csbuf);
return NULL;
}
- if ((unsigned int)(el - res) != nbrel)
+ if (csm.realloced)
{
- /* Inconsistency between the number of modules declared and the number
- of modules found in the index. */
- bfd_release (abfd, res);
- return NULL;
+ /* There are more entries than the first estimate. Allocate on
+ the BFD's objalloc. */
+ csbuf = bfd_alloc (abfd, csm.nbr * sizeof (struct carsym));
+ if (csbuf == NULL)
+ return NULL;
+ memcpy (csbuf, csm.idx, csm.nbr * sizeof (struct carsym));
+ free (csm.idx);
+ *nbrel = csm.nbr;
}
- return res;
+ return csbuf;
}
/* Standard function. */
struct lib_tdata *tdata_hold;
struct lib_tdata *tdata;
unsigned int dcxvbn;
+ unsigned int nbr_ent;
/* Read header. */
if (bfd_bread (&lhd, sizeof (lhd), abfd) != sizeof (lhd))
/* Check sanity (= magic) number. */
sanity = bfd_getl32 (lhd.sanity);
if (!(sanity == LHD_SANEID3
- || sanity == LHD_SANEID4
+ || sanity == LHD_SANEID6
|| sanity == LHD_SANEID_DCX))
{
bfd_set_error (bfd_error_wrong_format);
return NULL;
}
break;
+ case vms_lib_ia64:
+ if ((lhd.type != LBR__C_TYP_IOBJ && lhd.type != LBR__C_TYP_ISHSTB)
+ || bfd_getl32 (lhd.majorid) != 6
+ || lhd.nindex != 2)
+ {
+ bfd_set_error (bfd_error_wrong_format);
+ return NULL;
+ }
+ break;
case vms_lib_txt:
if ((lhd.type != LBR__C_TYP_TXT
&& lhd.type != LBR__C_TYP_MLB
/* Read indexes. */
tdata->nbr_modules = bfd_getl32 (lhd.modcnt);
- tdata->nbr_syms = bfd_getl32 (lhd.idxcnt) - tdata->nbr_modules;
- tdata->modules = vms_lib_read_index (abfd, 0, tdata->nbr_modules);
- if (tdata->modules == NULL)
+ tdata->artdata.symdef_count = bfd_getl32 (lhd.idxcnt) - tdata->nbr_modules;
+ nbr_ent = tdata->nbr_modules;
+ tdata->modules = vms_lib_read_index (abfd, 0, &nbr_ent);
+ if (tdata->modules == NULL || nbr_ent != tdata->nbr_modules)
goto err;
if (lhd.nindex == 2)
{
- tdata->syms = vms_lib_read_index (abfd, 1, tdata->nbr_syms);
- if (tdata->syms == NULL)
+ nbr_ent = tdata->artdata.symdef_count;
+ tdata->artdata.symdefs = vms_lib_read_index (abfd, 1, &nbr_ent);
+ if (tdata->artdata.symdefs == NULL)
+ goto err;
+ /* Only IA64 archives may have more entries in the index that what
+ was declared. */
+ if (nbr_ent != tdata->artdata.symdef_count
+ && kind != vms_lib_ia64)
goto err;
+ tdata->artdata.symdef_count = nbr_ent;
}
tdata->cache = bfd_zalloc (abfd, sizeof (bfd *) * tdata->nbr_modules);
if (tdata->cache == NULL)
/* The map is always present. Also mark shared image library. */
abfd->has_armap = TRUE;
- if (tdata->type == LBR__C_TYP_ESHSTB)
+ if (tdata->type == LBR__C_TYP_ESHSTB || tdata->type == LBR__C_TYP_ISHSTB)
abfd->is_thin_archive = TRUE;
return abfd->xvec;
tdata->type = LBR__C_TYP_EOBJ;
tdata->nbr_modules = 0;
- tdata->nbr_syms = 0;
+ tdata->artdata.symdef_count = 0;
tdata->modules = NULL;
- tdata->syms = NULL;
+ tdata->artdata.symdefs = NULL;
tdata->cache = NULL;
return TRUE;
_bfd_vms_lib_find_symbol (bfd *abfd, const char *name)
{
struct lib_tdata *tdata = bfd_libdata (abfd);
+ carsym *syms = tdata->artdata.symdefs;
int lo, hi;
/* Open-coded binary search for speed. */
lo = 0;
- hi = tdata->nbr_syms - 1;
+ hi = tdata->artdata.symdef_count - 1;
while (lo <= hi)
{
int mid = lo + (hi - lo) / 2;
int diff;
- diff = (char)(name[0] - tdata->syms[mid].name[0]);
+ diff = (char)(name[0] - syms[mid].name[0]);
if (diff == 0)
- diff = strcmp (name, tdata->syms[mid].name);
+ diff = strcmp (name, syms[mid].name);
if (diff == 0)
- return tdata->syms[mid].file_offset;
+ return mid;
else if (diff < 0)
hi = mid - 1;
else
lo = mid + 1;
}
- return 0;
+ return BFD_NO_MORE_SYMBOLS;
}
/* IO vector for archive member. Need that because members are not linearly
/* Read Record length + MHD + align byte. */
len = tdata->mhd_size;
if (vms_lib_bread_raw (el, buf, 2) != 2)
- return -1;
+ return FALSE;
if (bfd_getl16 (buf) != len)
- return -1;
+ return FALSE;
len = (len + 1) & ~1;
BFD_ASSERT (len <= sizeof (buf));
if (vms_lib_bread_raw (el, buf, len) != len)
- return -1;
+ return FALSE;
/* Get info from mhd. */
mhd = (struct vms_mhd *)buf;
+ /* Check id. */
+ if (mhd->id != MHD__C_MHDID)
+ return FALSE;
if (len >= sizeof (struct vms_mhd))
el->selective_search = (mhd->objstat & MHD__M_SELSRC) ? 1 : 0;
el->mtime = vms_rawtime_to_time_t (mhd->datim);
return TRUE;
}
-/* Standard function: get member at IDX. */
+/* Get member MODIDX. Return NULL in case of error. */
-bfd *
-_bfd_vms_lib_get_elt_at_index (bfd *abfd, symindex idx)
+static bfd *
+_bfd_vms_lib_get_module (bfd *abfd, unsigned int modidx)
{
struct lib_tdata *tdata = bfd_libdata (abfd);
bfd *res;
- unsigned int i;
+ file_ptr file_off;
- /* Linear-scan. */
- for (i = 0; i < tdata->nbr_modules; i++)
- {
- if (tdata->modules[i].file_offset == (file_ptr)idx)
- break;
- }
-
- /* Invalid index. */
- if (i >= tdata->nbr_modules)
+ /* Sanity check. */
+ if (modidx >= tdata->nbr_modules)
return NULL;
/* Already loaded. */
- if (tdata->cache[i])
- return tdata->cache[i];
+ if (tdata->cache[modidx])
+ return tdata->cache[modidx];
/* Build it. */
- res = _bfd_create_empty_archive_element_shell (abfd);
- if (!vms_lib_bopen (res, idx))
- return NULL;
- res->filename = tdata->modules[i].name;
+ file_off = tdata->modules[modidx].file_offset;
+ if (tdata->type != LBR__C_TYP_IOBJ)
+ {
+ res = _bfd_create_empty_archive_element_shell (abfd);
+ if (res == NULL)
+ return NULL;
+
+ /* Special reader to deal with data blocks. */
+ if (!vms_lib_bopen (res, file_off))
+ return NULL;
+ }
+ else
+ {
+ char buf[256];
+ struct vms_mhd *mhd;
+ struct areltdata *arelt;
+
+ /* Sanity check. The MHD must be big enough to contain module size. */
+ if (tdata->mhd_size < offsetof (struct vms_mhd, modsize) + 4)
+ return NULL;
+
+ /* Read the MHD now. */
+ if (bfd_seek (abfd, file_off, SEEK_SET) != 0)
+ return NULL;
+ if (bfd_bread (buf, tdata->mhd_size, abfd) != tdata->mhd_size)
+ return NULL;
+
+ res = _bfd_create_empty_archive_element_shell (abfd);
+ if (res == NULL)
+ return NULL;
+ arelt = bfd_zalloc (res, sizeof (*arelt));
+ if (arelt == NULL)
+ return NULL;
+ res->arelt_data = arelt;
+
+ /* Get info from mhd. */
+ mhd = (struct vms_mhd *)buf;
+ if (mhd->id != MHD__C_MHDID)
+ return NULL;
+ if (tdata->mhd_size >= offsetof (struct vms_mhd, objstat) + 1)
+ res->selective_search = (mhd->objstat & MHD__M_SELSRC) ? 1 : 0;
+ res->mtime = vms_rawtime_to_time_t (mhd->datim);
+ res->mtime_set = TRUE;
+
+ arelt->parsed_size = bfd_getl32 (mhd->modsize);
+
+ /* No need for a special reader as members are stored linearly.
+ Just skip the MHD. */
+ res->origin = file_off + tdata->mhd_size;
+ }
+
+ res->filename = tdata->modules[modidx].name;
- tdata->cache[i] = res;
+ tdata->cache[modidx] = res;
return res;
}
+/* Standard function: get member at IDX. */
+
+bfd *
+_bfd_vms_lib_get_elt_at_index (bfd *abfd, symindex symidx)
+{
+ struct lib_tdata *tdata = bfd_libdata (abfd);
+ file_ptr file_off;
+ unsigned int modidx;
+
+ /* Check symidx. */
+ if (symidx > tdata->artdata.symdef_count)
+ return NULL;
+ file_off = tdata->artdata.symdefs[symidx].file_offset;
+
+ /* Linear-scan. */
+ for (modidx = 0; modidx < tdata->nbr_modules; modidx++)
+ {
+ if (tdata->modules[modidx].file_offset == file_off)
+ break;
+ }
+ if (modidx >= tdata->nbr_modules)
+ return NULL;
+
+ return _bfd_vms_lib_get_module (abfd, modidx);
+}
+
/* Elements of an imagelib are stubs. You can get the real image with this
function. */
return NULL;
}
- res = _bfd_vms_lib_get_elt_at_index
- (archive, bfd_libdata (archive)->modules[idx].file_offset);
+ res = _bfd_vms_lib_get_module (archive, idx);
if (res == NULL)
return res;
res->proxy_origin = idx;
int
_bfd_vms_lib_generic_stat_arch_elt (bfd *abfd, struct stat *st)
{
- struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream;
+ struct lib_tdata *tdata;
+ /* Sanity check. */
if (abfd->my_archive == NULL)
{
bfd_set_error (bfd_error_invalid_operation);
return -1;
}
- if (vec->file_len == (ufile_ptr)-1)
+ tdata = bfd_libdata (abfd->my_archive);
+ if (tdata->type != LBR__C_TYP_IOBJ)
{
- if (vms_lib_bseek (abfd, 0, SEEK_SET) != 0)
- return -1;
+ struct vms_lib_iovec *vec = (struct vms_lib_iovec *) abfd->iostream;
- /* Compute length. */
- while (vms_lib_bread (abfd, NULL, 1 << 20) > 0)
- ;
+ if (vec->file_len == (ufile_ptr)-1)
+ {
+ if (vms_lib_bseek (abfd, 0, SEEK_SET) != 0)
+ return -1;
+
+ /* Compute length. */
+ while (vms_lib_bread (abfd, NULL, 1 << 20) > 0)
+ ;
+ }
+ st->st_size = vec->file_len;
+ }
+ else
+ {
+ st->st_size = ((struct areltdata *)abfd->arelt_data)->parsed_size;
}
- st->st_size = vec->file_len;
if (abfd->mtime_set)
st->st_mtime = abfd->mtime;
else
for (i = 0; i < nbr; i++, idx++)
{
unsigned int idxlen = get_idxlen (idx);
- struct vms_idxdef *en;
+ struct vms_idx *en;
int flush = 0;
/* Check if a block might overflow. In this case we will flush this
/* Update parent block: write the new entry. */
if (abfd != NULL)
{
- en = (struct vms_idxdef *)(rblk[j]->keys + blk[j].len);
+ en = (struct vms_idx *)(rblk[j]->keys + blk[j].len);
memcpy (rblk[j + 1]->keys + blk[j + 1].len, en,
blk[j].lastlen);
- en = (struct vms_idxdef *)
- (rblk[j + 1]->keys + blk[j + 1].len);
- bfd_putl32 (blk[j].vbn, en->vbn);
- bfd_putl16 (RFADEF__C_INDEX, en->offset);
+ en = (struct vms_idx *)(rblk[j + 1]->keys + blk[j + 1].len);
+ bfd_putl32 (blk[j].vbn, en->rfa.vbn);
+ bfd_putl16 (RFADEF__C_INDEX, en->rfa.offset);
}
if (j + 1 == flush)
if (abfd != NULL)
{
- en = (struct vms_idxdef *)(rblk[j]->keys + blk[j].len);
+ en = (struct vms_idx *)(rblk[j]->keys + blk[j].len);
bfd_putl32 ((idx->abfd->proxy_origin / VMS_BLOCK_SIZE) + 1,
- en->vbn);
+ en->rfa.vbn);
bfd_putl16
((idx->abfd->proxy_origin % VMS_BLOCK_SIZE) + DATA__DATA,
- en->offset);
+ en->rfa.offset);
en->keylen = idx->namlen;
memcpy (en->keyname, idx->name, idx->namlen);
}
if (j > 0)
{
/* Update parent block: write the new entry. */
- struct vms_idxdef *en;
- struct vms_idxdef *par;
+ struct vms_idx *en;
+ struct vms_idx *par;
- en = (struct vms_idxdef *)(rblk[j - 1]->keys + blk[j - 1].len);
- par = (struct vms_idxdef *)(rblk[j]->keys + blk[j].len);
+ en = (struct vms_idx *)(rblk[j - 1]->keys + blk[j - 1].len);
+ par = (struct vms_idx *)(rblk[j]->keys + blk[j].len);
memcpy (par, en, blk[j - 1].lastlen);
- bfd_putl32 (blk[j - 1].vbn, par->vbn);
- bfd_putl16 (RFADEF__C_INDEX, par->offset);
+ bfd_putl32 (blk[j - 1].vbn, par->rfa.vbn);
+ bfd_putl16 (RFADEF__C_INDEX, par->rfa.offset);
}
/* Write this block on the disk. */
projects / binutils-gdb.git / commitdiff