ctf_id_t
ctf_add_array(ctf_file_t *fp, uint_t flag, const ctf_arinfo_t *arp)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
ctf_file_t *fpd;
if (arp == NULL)
return (ctf_set_errno(fp, EINVAL));
fpd = fp;
if (ctf_lookup_by_id(&fpd, arp->ctr_contents) == NULL &&
ctf_dtd_lookup(fp, arp->ctr_contents) == NULL)
return (ctf_set_errno(fp, ECTF_BADID));
fpd = fp;
if (ctf_lookup_by_id(&fpd, arp->ctr_index) == NULL &&
ctf_dtd_lookup(fp, arp->ctr_index) == NULL)
return (ctf_set_errno(fp, ECTF_BADID));
if ((type = ctf_add_generic(fp, flag, NULL, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_ARRAY, flag, 0);
dtd->dtd_data.ctt_size = 0;
dtd->dtd_u.dtu_arr = *arp;
ctf_ref_inc(fp, arp->ctr_contents);
ctf_ref_inc(fp, arp->ctr_index);
return (type);
}
ctf_id_t
ctf_add_function(ctf_file_t *fp, uint_t flag,
const ctf_funcinfo_t *ctc, const ctf_id_t *argv)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
uint_t vlen;
int i;
ctf_id_t *vdat = NULL;
ctf_file_t *fpd;
if (ctc == NULL || (ctc->ctc_flags & ~CTF_FUNC_VARARG) != 0 ||
(ctc->ctc_argc != 0 && argv == NULL))
return (ctf_set_errno(fp, EINVAL));
vlen = ctc->ctc_argc;
if (ctc->ctc_flags & CTF_FUNC_VARARG)
vlen++; /* add trailing zero to indicate varargs (see below) */
if (vlen > CTF_MAX_VLEN)
return (ctf_set_errno(fp, EOVERFLOW));
fpd = fp;
if (ctf_lookup_by_id(&fpd, ctc->ctc_return) == NULL &&
ctf_dtd_lookup(fp, ctc->ctc_return) == NULL)
return (ctf_set_errno(fp, ECTF_BADID));
for (i = 0; i < ctc->ctc_argc; i++) {
fpd = fp;
if (ctf_lookup_by_id(&fpd, argv[i]) == NULL &&
ctf_dtd_lookup(fp, argv[i]) == NULL)
return (ctf_set_errno(fp, ECTF_BADID));
}
if (vlen != 0 && (vdat = ctf_alloc(sizeof (ctf_id_t) * vlen)) == NULL)
return (ctf_set_errno(fp, EAGAIN));
if ((type = ctf_add_generic(fp, flag, NULL, &dtd)) == CTF_ERR) {
ctf_free(vdat, sizeof (ctf_id_t) * vlen);
return (CTF_ERR); /* errno is set for us */
}
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_FUNCTION, flag, vlen);
dtd->dtd_data.ctt_type = (ushort_t)ctc->ctc_return;
ctf_ref_inc(fp, ctc->ctc_return);
for (i = 0; i < ctc->ctc_argc; i++)
ctf_ref_inc(fp, argv[i]);
bcopy(argv, vdat, sizeof (ctf_id_t) * ctc->ctc_argc);
if (ctc->ctc_flags & CTF_FUNC_VARARG)
vdat[vlen - 1] = 0; /* add trailing zero to indicate varargs */
dtd->dtd_u.dtu_argv = vdat;
return (type);
}
int
ctf_add_enumerator(ctf_file_t *fp, ctf_id_t enid, const char *name, int value)
{
ctf_dtdef_t *dtd = ctf_dtd_lookup(fp, enid);
ctf_dmdef_t *dmd;
uint_t kind, vlen, root;
char *s;
if (name == NULL)
return (ctf_set_errno(fp, EINVAL));
if (!(fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno(fp, ECTF_RDONLY));
if (dtd == NULL)
return (ctf_set_errno(fp, ECTF_BADID));
kind = CTF_INFO_KIND(dtd->dtd_data.ctt_info);
root = CTF_INFO_ISROOT(dtd->dtd_data.ctt_info);
vlen = CTF_INFO_VLEN(dtd->dtd_data.ctt_info);
if (kind != CTF_K_ENUM)
return (ctf_set_errno(fp, ECTF_NOTENUM));
if (vlen == CTF_MAX_VLEN)
return (ctf_set_errno(fp, ECTF_DTFULL));
for (dmd = ctf_list_next(&dtd->dtd_u.dtu_members);
dmd != NULL; dmd = ctf_list_next(dmd)) {
if (strcmp(dmd->dmd_name, name) == 0)
return (ctf_set_errno(fp, ECTF_DUPMEMBER));
}
if ((dmd = ctf_alloc(sizeof (ctf_dmdef_t))) == NULL)
return (ctf_set_errno(fp, EAGAIN));
if ((s = ctf_strdup(name)) == NULL) {
ctf_free(dmd, sizeof (ctf_dmdef_t));
return (ctf_set_errno(fp, EAGAIN));
}
dmd->dmd_name = s;
dmd->dmd_type = CTF_ERR;
dmd->dmd_offset = 0;
dmd->dmd_value = value;
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(kind, root, vlen + 1);
ctf_list_append(&dtd->dtd_u.dtu_members, dmd);
fp->ctf_dtstrlen += strlen(s) + 1;
fp->ctf_flags |= LCTF_DIRTY;
return (0);
}
static void
write_functions(iidesc_t *idp, ctf_buf_t *b)
{
ushort_t fdata[2];
ushort_t id;
int nargs;
int i;
if (!idp) {
fdata[0] = 0;
ctf_buf_write(b, &fdata[0], sizeof (fdata[0]));
debug(3, "Wrote function (null)\n");
return;
}
nargs = idp->ii_nargs + (idp->ii_vargs != 0);
if (nargs > CTF_MAX_VLEN) {
terminate("function %s has too many args: %d > %d\n",
idp->ii_name, nargs, CTF_MAX_VLEN);
}
fdata[0] = CTF_TYPE_INFO(CTF_K_FUNCTION, 1, nargs);
fdata[1] = idp->ii_dtype->t_id;
if (target_requires_swap) {
SWAP_16(fdata[0]);
SWAP_16(fdata[1]);
}
ctf_buf_write(b, fdata, sizeof (fdata));
for (i = 0; i < idp->ii_nargs; i++) {
id = idp->ii_args[i]->t_id;
if (target_requires_swap) {
SWAP_16(id);
}
ctf_buf_write(b, &id, sizeof (id));
}
if (idp->ii_vargs) {
id = 0;
ctf_buf_write(b, &id, sizeof (id));
}
debug(3, "Wrote function %s (%d args)\n", idp->ii_name, nargs);
}
ctf_id_t
ctf_add_typedef(ctf_file_t *fp, uint_t flag, const char *name, ctf_id_t ref)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
if (ref == CTF_ERR || ref < 0 || ref > CTF_MAX_TYPE)
return (ctf_set_errno(fp, EINVAL));
if ((type = ctf_add_generic(fp, flag, name, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_TYPEDEF, flag, 0);
dtd->dtd_data.ctt_type = (ushort_t)ref;
return (type);
}
static ctf_id_t
ctf_add_reftype(ctf_file_t *fp, uint_t flag, ctf_id_t ref, uint_t kind)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
if (ref == CTF_ERR || ref < 0 || ref > CTF_MAX_TYPE)
return (ctf_set_errno(fp, EINVAL));
if ((type = ctf_add_generic(fp, flag, NULL, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(kind, flag, 0);
dtd->dtd_data.ctt_type = (ushort_t)ref;
return (type);
}
ctf_id_t
ctf_add_array(ctf_file_t *fp, uint_t flag, const ctf_arinfo_t *arp)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
if (arp == NULL)
return (ctf_set_errno(fp, EINVAL));
if ((type = ctf_add_generic(fp, flag, NULL, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_ARRAY, flag, 0);
dtd->dtd_data.ctt_size = 0;
dtd->dtd_u.dtu_arr = *arp;
return (type);
}
static ctf_id_t
ctf_add_encoded(ctf_file_t *fp, uint_t flag,
const char *name, const ctf_encoding_t *ep, uint_t kind)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
if (ep == NULL)
return (ctf_set_errno(fp, EINVAL));
if ((type = ctf_add_generic(fp, flag, name, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(kind, flag, 0);
dtd->dtd_data.ctt_size = clp2(P2ROUNDUP(ep->cte_bits, NBBY) / NBBY);
dtd->dtd_u.dtu_enc = *ep;
return (type);
}
ctf_id_t
ctf_add_typedef(ctf_file_t *fp, uint_t flag, const char *name, ctf_id_t ref)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
ctf_file_t *fpd;
fpd = fp;
if (ref == CTF_ERR || (ctf_lookup_by_id(&fpd, ref) == NULL &&
ctf_dtd_lookup(fp, ref) == NULL))
return (ctf_set_errno(fp, EINVAL));
if ((type = ctf_add_generic(fp, flag, name, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_TYPEDEF, flag, 0);
dtd->dtd_data.ctt_type = (ushort_t)ref;
ctf_ref_inc(fp, ref);
return (type);
}
ctf_id_t
ctf_add_enum(ctf_file_t *fp, uint_t flag, const char *name)
{
ctf_hash_t *hp = &fp->ctf_enums;
ctf_helem_t *hep = NULL;
ctf_dtdef_t *dtd;
ctf_id_t type;
if (name != NULL)
hep = ctf_hash_lookup(hp, fp, name, strlen(name));
if (hep != NULL && ctf_type_kind(fp, hep->h_type) == CTF_K_FORWARD)
dtd = ctf_dtd_lookup(fp, type = hep->h_type);
else if ((type = ctf_add_generic(fp, flag, name, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_ENUM, flag, 0);
dtd->dtd_data.ctt_size = fp->ctf_dmodel->ctd_int;
return (type);
}
ctf_id_t
ctf_add_forward(ctf_file_t *fp, uint_t flag, const char *name, uint_t kind)
{
ctf_hash_t *hp;
ctf_helem_t *hep;
ctf_dtdef_t *dtd;
ctf_id_t type;
switch (kind) {
case CTF_K_STRUCT:
hp = &fp->ctf_structs;
break;
case CTF_K_UNION:
hp = &fp->ctf_unions;
break;
case CTF_K_ENUM:
hp = &fp->ctf_enums;
break;
default:
return (ctf_set_errno(fp, ECTF_NOTSUE));
}
/*
* If the type is already defined or exists as a forward tag, just
* return the ctf_id_t of the existing definition.
*/
if (name != NULL && (hep = ctf_hash_lookup(hp,
fp, name, strlen(name))) != NULL)
return (hep->h_type);
if ((type = ctf_add_generic(fp, flag, name, &dtd)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(CTF_K_FORWARD, flag, 0);
dtd->dtd_data.ctt_type = kind;
return (type);
}
/*
* The ctf_add_type routine is used to copy a type from a source CTF container
* to a dynamic destination container. This routine operates recursively by
* following the source type's links and embedded member types. If the
* destination container already contains a named type which has the same
* attributes, then we succeed and return this type but no changes occur.
*/
ctf_id_t
ctf_add_type(ctf_file_t *dst_fp, ctf_file_t *src_fp, ctf_id_t src_type)
{
ctf_id_t dst_type = CTF_ERR;
uint_t dst_kind = CTF_K_UNKNOWN;
const ctf_type_t *tp;
const char *name;
uint_t kind, flag, vlen;
ctf_bundle_t src, dst;
ctf_encoding_t src_en, dst_en;
ctf_arinfo_t src_ar, dst_ar;
ctf_dtdef_t *dtd;
ctf_funcinfo_t ctc;
ssize_t size;
ctf_hash_t *hp;
ctf_helem_t *hep;
if (dst_fp == src_fp)
return (src_type);
if (!(dst_fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno(dst_fp, ECTF_RDONLY));
if ((tp = ctf_lookup_by_id(&src_fp, src_type)) == NULL)
return (ctf_set_errno(dst_fp, ctf_errno(src_fp)));
name = ctf_strptr(src_fp, tp->ctt_name);
kind = LCTF_INFO_KIND(src_fp, tp->ctt_info);
flag = LCTF_INFO_ROOT(src_fp, tp->ctt_info);
vlen = LCTF_INFO_VLEN(src_fp, tp->ctt_info);
switch (kind) {
case CTF_K_STRUCT:
hp = &dst_fp->ctf_structs;
break;
case CTF_K_UNION:
hp = &dst_fp->ctf_unions;
break;
case CTF_K_ENUM:
hp = &dst_fp->ctf_enums;
break;
default:
hp = &dst_fp->ctf_names;
break;
}
/*
* If the source type has a name and is a root type (visible at the
* top-level scope), lookup the name in the destination container and
* verify that it is of the same kind before we do anything else.
*/
if ((flag & CTF_ADD_ROOT) && name[0] != '\0' &&
(hep = ctf_hash_lookup(hp, dst_fp, name, strlen(name))) != NULL) {
dst_type = (ctf_id_t)hep->h_type;
dst_kind = ctf_type_kind(dst_fp, dst_type);
}
/*
* If an identically named dst_type exists, fail with ECTF_CONFLICT
* unless dst_type is a forward declaration and src_type is a struct,
* union, or enum (i.e. the definition of the previous forward decl).
*/
if (dst_type != CTF_ERR && dst_kind != kind) {
if (dst_kind != CTF_K_FORWARD || (kind != CTF_K_ENUM &&
kind != CTF_K_STRUCT && kind != CTF_K_UNION))
return (ctf_set_errno(dst_fp, ECTF_CONFLICT));
else
dst_type = CTF_ERR;
}
/*
* If the non-empty name was not found in the appropriate hash, search
* the list of pending dynamic definitions that are not yet committed.
* If a matching name and kind are found, assume this is the type that
* we are looking for. This is necessary to permit ctf_add_type() to
* operate recursively on entities such as a struct that contains a
* pointer member that refers to the same struct type.
*
* In the case of integer and floating point types, we match using the
* type encoding as well - else we may incorrectly return a bitfield
* type, for instance.
*/
if (dst_type == CTF_ERR && name[0] != '\0') {
for (dtd = ctf_list_prev(&dst_fp->ctf_dtdefs); dtd != NULL &&
CTF_TYPE_TO_INDEX(dtd->dtd_type) > dst_fp->ctf_dtoldid;
dtd = ctf_list_prev(dtd)) {
if (CTF_INFO_KIND(dtd->dtd_data.ctt_info) != kind ||
dtd->dtd_name == NULL ||
strcmp(dtd->dtd_name, name) != 0)
continue;
if (kind == CTF_K_INTEGER || kind == CTF_K_FLOAT) {
if (ctf_type_encoding(src_fp, src_type,
&src_en) != 0)
continue;
if (bcmp(&src_en, &dtd->dtd_u.dtu_enc,
sizeof (ctf_encoding_t)) != 0)
continue;
}
return (dtd->dtd_type);
}
}
src.ctb_file = src_fp;
src.ctb_type = src_type;
src.ctb_dtd = NULL;
dst.ctb_file = dst_fp;
dst.ctb_type = dst_type;
dst.ctb_dtd = NULL;
/*
* Now perform kind-specific processing. If dst_type is CTF_ERR, then
* we add a new type with the same properties as src_type to dst_fp.
* If dst_type is not CTF_ERR, then we verify that dst_type has the
* same attributes as src_type. We recurse for embedded references.
*/
switch (kind) {
case CTF_K_INTEGER:
case CTF_K_FLOAT:
if (ctf_type_encoding(src_fp, src_type, &src_en) != 0)
return (ctf_set_errno(dst_fp, ctf_errno(src_fp)));
if (dst_type != CTF_ERR) {
if (ctf_type_encoding(dst_fp, dst_type, &dst_en) != 0)
return (CTF_ERR); /* errno is set for us */
if (bcmp(&src_en, &dst_en, sizeof (ctf_encoding_t)))
return (ctf_set_errno(dst_fp, ECTF_CONFLICT));
} else if (kind == CTF_K_INTEGER) {
dst_type = ctf_add_integer(dst_fp, flag, name, &src_en);
} else
dst_type = ctf_add_float(dst_fp, flag, name, &src_en);
break;
case CTF_K_POINTER:
case CTF_K_VOLATILE:
case CTF_K_CONST:
case CTF_K_RESTRICT:
src_type = ctf_type_reference(src_fp, src_type);
src_type = ctf_add_type(dst_fp, src_fp, src_type);
if (src_type == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dst_type = ctf_add_reftype(dst_fp, flag, src_type, kind);
break;
case CTF_K_ARRAY:
if (ctf_array_info(src_fp, src_type, &src_ar) == CTF_ERR)
return (ctf_set_errno(dst_fp, ctf_errno(src_fp)));
src_ar.ctr_contents =
ctf_add_type(dst_fp, src_fp, src_ar.ctr_contents);
src_ar.ctr_index =
ctf_add_type(dst_fp, src_fp, src_ar.ctr_index);
src_ar.ctr_nelems = src_ar.ctr_nelems;
if (src_ar.ctr_contents == CTF_ERR ||
src_ar.ctr_index == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
if (dst_type != CTF_ERR) {
if (ctf_array_info(dst_fp, dst_type, &dst_ar) != 0)
return (CTF_ERR); /* errno is set for us */
if (bcmp(&src_ar, &dst_ar, sizeof (ctf_arinfo_t)))
return (ctf_set_errno(dst_fp, ECTF_CONFLICT));
} else
dst_type = ctf_add_array(dst_fp, flag, &src_ar);
break;
case CTF_K_FUNCTION:
ctc.ctc_return = ctf_add_type(dst_fp, src_fp, tp->ctt_type);
ctc.ctc_argc = 0;
ctc.ctc_flags = 0;
if (ctc.ctc_return == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dst_type = ctf_add_function(dst_fp, flag, &ctc, NULL);
break;
case CTF_K_STRUCT:
case CTF_K_UNION: {
ctf_dmdef_t *dmd;
int errs = 0;
/*
* Technically to match a struct or union we need to check both
* ways (src members vs. dst, dst members vs. src) but we make
* this more optimal by only checking src vs. dst and comparing
* the total size of the structure (which we must do anyway)
* which covers the possibility of dst members not in src.
* This optimization can be defeated for unions, but is so
* pathological as to render it irrelevant for our purposes.
*/
if (dst_type != CTF_ERR && dst_kind != CTF_K_FORWARD) {
if (ctf_type_size(src_fp, src_type) !=
ctf_type_size(dst_fp, dst_type))
return (ctf_set_errno(dst_fp, ECTF_CONFLICT));
if (ctf_member_iter(src_fp, src_type, membcmp, &dst))
return (ctf_set_errno(dst_fp, ECTF_CONFLICT));
break;
}
/*
* Unlike the other cases, copying structs and unions is done
* manually so as to avoid repeated lookups in ctf_add_member
* and to ensure the exact same member offsets as in src_type.
*/
dst_type = ctf_add_generic(dst_fp, flag, name, &dtd);
if (dst_type == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
dst.ctb_type = dst_type;
dst.ctb_dtd = dtd;
if (ctf_member_iter(src_fp, src_type, membadd, &dst) != 0)
errs++; /* increment errs and fail at bottom of case */
if ((size = ctf_type_size(src_fp, src_type)) > CTF_MAX_SIZE) {
dtd->dtd_data.ctt_size = CTF_LSIZE_SENT;
dtd->dtd_data.ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI(size);
dtd->dtd_data.ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO(size);
} else
dtd->dtd_data.ctt_size = (ushort_t)size;
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(kind, flag, vlen);
/*
* Make a final pass through the members changing each dmd_type
* (a src_fp type) to an equivalent type in dst_fp. We pass
* through all members, leaving any that fail set to CTF_ERR.
*/
for (dmd = ctf_list_next(&dtd->dtd_u.dtu_members);
dmd != NULL; dmd = ctf_list_next(dmd)) {
if ((dmd->dmd_type = ctf_add_type(dst_fp, src_fp,
dmd->dmd_type)) == CTF_ERR)
errs++;
}
if (errs)
return (CTF_ERR); /* errno is set for us */
/*
* Now that we know that we can't fail, we go through and bump
* all the reference counts on the member types.
*/
for (dmd = ctf_list_next(&dtd->dtd_u.dtu_members);
dmd != NULL; dmd = ctf_list_next(dmd))
ctf_ref_inc(dst_fp, dmd->dmd_type);
break;
}
case CTF_K_ENUM:
if (dst_type != CTF_ERR && dst_kind != CTF_K_FORWARD) {
if (ctf_enum_iter(src_fp, src_type, enumcmp, &dst) ||
ctf_enum_iter(dst_fp, dst_type, enumcmp, &src))
return (ctf_set_errno(dst_fp, ECTF_CONFLICT));
} else {
dst_type = ctf_add_enum(dst_fp, flag, name);
if ((dst.ctb_type = dst_type) == CTF_ERR ||
ctf_enum_iter(src_fp, src_type, enumadd, &dst))
return (CTF_ERR); /* errno is set for us */
}
break;
case CTF_K_FORWARD:
if (dst_type == CTF_ERR) {
dst_type = ctf_add_forward(dst_fp,
flag, name, CTF_K_STRUCT); /* assume STRUCT */
}
break;
case CTF_K_TYPEDEF:
src_type = ctf_type_reference(src_fp, src_type);
src_type = ctf_add_type(dst_fp, src_fp, src_type);
if (src_type == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
/*
* If dst_type is not CTF_ERR at this point, we should check if
* ctf_type_reference(dst_fp, dst_type) != src_type and if so
* fail with ECTF_CONFLICT. However, this causes problems with
* <sys/types.h> typedefs that vary based on things like if
* _ILP32x then pid_t is int otherwise long. We therefore omit
* this check and assume that if the identically named typedef
* already exists in dst_fp, it is correct or equivalent.
*/
if (dst_type == CTF_ERR) {
dst_type = ctf_add_typedef(dst_fp, flag,
name, src_type);
}
break;
default:
return (ctf_set_errno(dst_fp, ECTF_CORRUPT));
}
return (dst_type);
}
int
ctf_add_member(ctf_file_t *fp, ctf_id_t souid, const char *name, ctf_id_t type)
{
ctf_dtdef_t *dtd = ctf_dtd_lookup(fp, souid);
ctf_dmdef_t *dmd;
ssize_t msize, malign, ssize;
uint_t kind, vlen, root;
char *s = NULL;
if (!(fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno(fp, ECTF_RDONLY));
if (dtd == NULL)
return (ctf_set_errno(fp, ECTF_BADID));
kind = CTF_INFO_KIND(dtd->dtd_data.ctt_info);
root = CTF_INFO_ISROOT(dtd->dtd_data.ctt_info);
vlen = CTF_INFO_VLEN(dtd->dtd_data.ctt_info);
if (kind != CTF_K_STRUCT && kind != CTF_K_UNION)
return (ctf_set_errno(fp, ECTF_NOTSOU));
if (vlen == CTF_MAX_VLEN)
return (ctf_set_errno(fp, ECTF_DTFULL));
if (name != NULL) {
for (dmd = ctf_list_next(&dtd->dtd_u.dtu_members);
dmd != NULL; dmd = ctf_list_next(dmd)) {
if (dmd->dmd_name != NULL &&
strcmp(dmd->dmd_name, name) == 0)
return (ctf_set_errno(fp, ECTF_DUPMEMBER));
}
}
if ((msize = ctf_type_size(fp, type)) == CTF_ERR ||
(malign = ctf_type_align(fp, type)) == CTF_ERR)
return (CTF_ERR); /* errno is set for us */
if ((dmd = ctf_alloc(sizeof (ctf_dmdef_t))) == NULL)
return (ctf_set_errno(fp, EAGAIN));
if (name != NULL && (s = ctf_strdup(name)) == NULL) {
ctf_free(dmd, sizeof (ctf_dmdef_t));
return (ctf_set_errno(fp, EAGAIN));
}
dmd->dmd_name = s;
dmd->dmd_type = type;
dmd->dmd_value = -1;
if (kind == CTF_K_STRUCT && vlen != 0) {
ctf_dmdef_t *lmd = ctf_list_prev(&dtd->dtd_u.dtu_members);
ctf_id_t ltype = ctf_type_resolve(fp, lmd->dmd_type);
size_t off = lmd->dmd_offset;
ctf_encoding_t linfo;
ssize_t lsize;
if (ctf_type_encoding(fp, ltype, &linfo) != CTF_ERR)
off += linfo.cte_bits;
else if ((lsize = ctf_type_size(fp, ltype)) != CTF_ERR)
off += lsize * NBBY;
/*
* Round up the offset of the end of the last member to the
* next byte boundary, convert 'off' to bytes, and then round
* it up again to the next multiple of the alignment required
* by the new member. Finally, convert back to bits and store
* the result in dmd_offset. Technically we could do more
* efficient packing if the new member is a bit-field, but
* we're the "compiler" and ANSI says we can do as we choose.
*/
off = roundup(off, NBBY) / NBBY;
off = roundup(off, MAX(malign, 1));
dmd->dmd_offset = off * NBBY;
ssize = off + msize;
} else {
dmd->dmd_offset = 0;
ssize = ctf_get_ctt_size(fp, &dtd->dtd_data, NULL, NULL);
ssize = MAX(ssize, msize);
}
if (ssize > CTF_MAX_SIZE) {
dtd->dtd_data.ctt_size = CTF_LSIZE_SENT;
dtd->dtd_data.ctt_lsizehi = CTF_SIZE_TO_LSIZE_HI(ssize);
dtd->dtd_data.ctt_lsizelo = CTF_SIZE_TO_LSIZE_LO(ssize);
} else
dtd->dtd_data.ctt_size = (ushort_t)ssize;
dtd->dtd_data.ctt_info = CTF_TYPE_INFO(kind, root, vlen + 1);
ctf_list_append(&dtd->dtd_u.dtu_members, dmd);
if (s != NULL)
fp->ctf_dtstrlen += strlen(s) + 1;
ctf_ref_inc(fp, type);
fp->ctf_flags |= LCTF_DIRTY;
return (0);
}
static int
write_type(void *arg1, void *arg2)
{
tdesc_t *tp = arg1;
ctf_buf_t *b = arg2;
elist_t *ep;
mlist_t *mp;
intr_t *ip;
size_t offset;
uint_t encoding;
uint_t data;
int isroot = tp->t_flags & TDESC_F_ISROOT;
int i;
ctf_type_t ctt;
ctf_array_t cta;
ctf_member_t ctm;
ctf_lmember_t ctlm;
ctf_enum_t cte;
ushort_t id;
ctlm.ctlm_pad = 0;
/*
* There shouldn't be any holes in the type list (where a hole is
* defined as two consecutive tdescs without consecutive ids), but
* check for them just in case. If we do find holes, we need to make
* fake entries to fill the holes, or we won't be able to reconstruct
* the tree from the written data.
*/
if (++b->nptent < CTF_TYPE_TO_INDEX(tp->t_id)) {
debug(2, "genctf: type hole from %d < x < %d\n",
b->nptent - 1, CTF_TYPE_TO_INDEX(tp->t_id));
ctt.ctt_name = CTF_TYPE_NAME(CTF_STRTAB_0, 0);
ctt.ctt_info = CTF_TYPE_INFO(0, 0, 0);
while (b->nptent < CTF_TYPE_TO_INDEX(tp->t_id)) {
write_sized_type_rec(b, &ctt, 0);
b->nptent++;
}
}
offset = strtab_insert(&b->ctb_strtab, tp->t_name);
ctt.ctt_name = CTF_TYPE_NAME(CTF_STRTAB_0, offset);
switch (tp->t_type) {
case INTRINSIC:
ip = tp->t_intr;
if (ip->intr_type == INTR_INT)
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_INTEGER,
isroot, 1);
else
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FLOAT, isroot, 1);
write_sized_type_rec(b, &ctt, tp->t_size);
encoding = 0;
if (ip->intr_type == INTR_INT) {
if (ip->intr_signed)
encoding |= CTF_INT_SIGNED;
if (ip->intr_iformat == 'c')
encoding |= CTF_INT_CHAR;
else if (ip->intr_iformat == 'b')
encoding |= CTF_INT_BOOL;
else if (ip->intr_iformat == 'v')
encoding |= CTF_INT_VARARGS;
} else
encoding = ip->intr_fformat;
data = CTF_INT_DATA(encoding, ip->intr_offset, ip->intr_nbits);
if (target_requires_swap) {
SWAP_32(data);
}
ctf_buf_write(b, &data, sizeof (data));
break;
case POINTER:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_POINTER, isroot, 0);
ctt.ctt_type = tp->t_tdesc->t_id;
write_unsized_type_rec(b, &ctt);
break;
case ARRAY:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_ARRAY, isroot, 1);
write_sized_type_rec(b, &ctt, tp->t_size);
cta.cta_contents = tp->t_ardef->ad_contents->t_id;
cta.cta_index = tp->t_ardef->ad_idxtype->t_id;
cta.cta_nelems = tp->t_ardef->ad_nelems;
if (target_requires_swap) {
SWAP_16(cta.cta_contents);
SWAP_16(cta.cta_index);
SWAP_32(cta.cta_nelems);
}
ctf_buf_write(b, &cta, sizeof (cta));
break;
case STRUCT:
case UNION:
for (i = 0, mp = tp->t_members; mp != NULL; mp = mp->ml_next)
i++; /* count up struct or union members */
if (i > CTF_MAX_VLEN) {
terminate("sou %s has too many members: %d > %d\n",
tdesc_name(tp), i, CTF_MAX_VLEN);
}
if (tp->t_type == STRUCT)
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_STRUCT, isroot, i);
else
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_UNION, isroot, i);
write_sized_type_rec(b, &ctt, tp->t_size);
if (tp->t_size < CTF_LSTRUCT_THRESH) {
for (mp = tp->t_members; mp != NULL; mp = mp->ml_next) {
offset = strtab_insert(&b->ctb_strtab,
mp->ml_name);
ctm.ctm_name = CTF_TYPE_NAME(CTF_STRTAB_0,
offset);
ctm.ctm_type = mp->ml_type->t_id;
ctm.ctm_offset = mp->ml_offset;
if (target_requires_swap) {
SWAP_32(ctm.ctm_name);
SWAP_16(ctm.ctm_type);
SWAP_16(ctm.ctm_offset);
}
ctf_buf_write(b, &ctm, sizeof (ctm));
}
} else {
for (mp = tp->t_members; mp != NULL; mp = mp->ml_next) {
offset = strtab_insert(&b->ctb_strtab,
mp->ml_name);
ctlm.ctlm_name = CTF_TYPE_NAME(CTF_STRTAB_0,
offset);
ctlm.ctlm_type = mp->ml_type->t_id;
ctlm.ctlm_offsethi =
CTF_OFFSET_TO_LMEMHI(mp->ml_offset);
ctlm.ctlm_offsetlo =
CTF_OFFSET_TO_LMEMLO(mp->ml_offset);
if (target_requires_swap) {
SWAP_32(ctlm.ctlm_name);
SWAP_16(ctlm.ctlm_type);
SWAP_32(ctlm.ctlm_offsethi);
SWAP_32(ctlm.ctlm_offsetlo);
}
ctf_buf_write(b, &ctlm, sizeof (ctlm));
}
}
break;
case ENUM:
for (i = 0, ep = tp->t_emem; ep != NULL; ep = ep->el_next)
i++; /* count up enum members */
if (i > CTF_MAX_VLEN) {
warning("enum %s has too many values: %d > %d\n",
tdesc_name(tp), i, CTF_MAX_VLEN);
i = CTF_MAX_VLEN;
}
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_ENUM, isroot, i);
write_sized_type_rec(b, &ctt, tp->t_size);
for (ep = tp->t_emem; ep != NULL && i > 0; ep = ep->el_next) {
offset = strtab_insert(&b->ctb_strtab, ep->el_name);
cte.cte_name = CTF_TYPE_NAME(CTF_STRTAB_0, offset);
cte.cte_value = ep->el_number;
if (target_requires_swap) {
SWAP_32(cte.cte_name);
SWAP_32(cte.cte_value);
}
ctf_buf_write(b, &cte, sizeof (cte));
i--;
}
break;
case FORWARD:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FORWARD, isroot, 0);
ctt.ctt_type = 0;
write_unsized_type_rec(b, &ctt);
break;
case TYPEDEF:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_TYPEDEF, isroot, 0);
ctt.ctt_type = tp->t_tdesc->t_id;
write_unsized_type_rec(b, &ctt);
break;
case VOLATILE:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_VOLATILE, isroot, 0);
ctt.ctt_type = tp->t_tdesc->t_id;
write_unsized_type_rec(b, &ctt);
break;
case CONST:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_CONST, isroot, 0);
ctt.ctt_type = tp->t_tdesc->t_id;
write_unsized_type_rec(b, &ctt);
break;
case FUNCTION:
i = tp->t_fndef->fn_nargs + tp->t_fndef->fn_vargs;
if (i > CTF_MAX_VLEN) {
terminate("function %s has too many args: %d > %d\n",
tdesc_name(tp), i, CTF_MAX_VLEN);
}
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FUNCTION, isroot, i);
ctt.ctt_type = tp->t_fndef->fn_ret->t_id;
write_unsized_type_rec(b, &ctt);
for (i = 0; i < (int) tp->t_fndef->fn_nargs; i++) {
id = tp->t_fndef->fn_args[i]->t_id;
if (target_requires_swap) {
SWAP_16(id);
}
ctf_buf_write(b, &id, sizeof (id));
}
if (tp->t_fndef->fn_vargs) {
id = 0;
ctf_buf_write(b, &id, sizeof (id));
i++;
}
if (i & 1) {
id = 0;
ctf_buf_write(b, &id, sizeof (id));
}
break;
case RESTRICT:
ctt.ctt_info = CTF_TYPE_INFO(CTF_K_RESTRICT, isroot, 0);
ctt.ctt_type = tp->t_tdesc->t_id;
write_unsized_type_rec(b, &ctt);
break;
default:
warning("Can't write unknown type %d\n", tp->t_type);
}
debug(3, "Wrote type %d %s\n", tp->t_id, tdesc_name(tp));
return (1);
}
