libctf: create, types: arrays

The same internal API changes for arrays.  There is one ABI change here,
to ctf_arinfo_t:

-  uint32_t ctr_nelems;		/* Number of elements.  */
+  size_t ctr_nelems;		/* Number of elements.  */
This commit is contained in:
Nick Alcock
2025-04-25 11:38:11 +01:00
parent d65d03bec4
commit 0cd5118024
3 changed files with 29 additions and 32 deletions

View File

@@ -161,7 +161,7 @@ typedef struct ctf_arinfo
{ {
ctf_id_t ctr_contents; /* Type of array contents. */ ctf_id_t ctr_contents; /* Type of array contents. */
ctf_id_t ctr_index; /* Type of array index. */ ctf_id_t ctr_index; /* Type of array index. */
uint32_t ctr_nelems; /* Number of elements. */ size_t ctr_nelems; /* Number of elements. */
} ctf_arinfo_t; } ctf_arinfo_t;
typedef struct ctf_funcinfo typedef struct ctf_funcinfo

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@@ -865,19 +865,18 @@ ctf_id_t
ctf_add_array (ctf_dict_t *fp, uint32_t flag, const ctf_arinfo_t *arp) ctf_add_array (ctf_dict_t *fp, uint32_t flag, const ctf_arinfo_t *arp)
{ {
ctf_dtdef_t *dtd; ctf_dtdef_t *dtd;
ctf_array_t cta; ctf_array_t *cta;
ctf_id_t type;
ctf_dict_t *tmp = fp; ctf_dict_t *tmp = fp;
if (arp == NULL) if (arp == NULL)
return (ctf_set_typed_errno (fp, EINVAL)); return (ctf_set_typed_errno (fp, EINVAL));
if (arp->ctr_contents != 0 if (arp->ctr_contents != 0
&& ctf_lookup_by_id (&tmp, arp->ctr_contents) == NULL) && ctf_lookup_by_id (&tmp, arp->ctr_contents, NULL) == NULL)
return CTF_ERR; /* errno is set for us. */ return CTF_ERR; /* errno is set for us. */
tmp = fp; tmp = fp;
if (ctf_lookup_by_id (&tmp, arp->ctr_index) == NULL) if (ctf_lookup_by_id (&tmp, arp->ctr_index, NULL) == NULL)
return CTF_ERR; /* errno is set for us. */ return CTF_ERR; /* errno is set for us. */
if (ctf_type_kind (fp, arp->ctr_index) == CTF_K_FORWARD) if (ctf_type_kind (fp, arp->ctr_index) == CTF_K_FORWARD)
@@ -888,38 +887,41 @@ ctf_add_array (ctf_dict_t *fp, uint32_t flag, const ctf_arinfo_t *arp)
return (ctf_set_typed_errno (fp, ECTF_INCOMPLETE)); return (ctf_set_typed_errno (fp, ECTF_INCOMPLETE));
} }
if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_ARRAY, if ((dtd = ctf_add_generic (fp, flag, NULL, CTF_K_ARRAY, 0,
sizeof (ctf_array_t), &dtd)) == CTF_ERR) sizeof (ctf_array_t), 0, NULL)) == NULL)
return CTF_ERR; /* errno is set for us. */ return CTF_ERR; /* errno is set for us. */
memset (&cta, 0, sizeof (ctf_array_t)); cta = (ctf_array_t *) dtd->dtd_vlen;
dtd->dtd_data->ctt_info = CTF_TYPE_INFO (CTF_K_ARRAY, 0, 0);
dtd->dtd_data->ctt_size = 0;
cta->cta_contents = (uint32_t) arp->ctr_contents;
cta->cta_index = (uint32_t) arp->ctr_index;
cta->cta_nelems = arp->ctr_nelems;
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_ARRAY, flag, 0); return dtd->dtd_type;
dtd->dtd_data.ctt_size = 0;
cta.cta_contents = (uint32_t) arp->ctr_contents;
cta.cta_index = (uint32_t) arp->ctr_index;
cta.cta_nelems = arp->ctr_nelems;
memcpy (dtd->dtd_vlen, &cta, sizeof (ctf_array_t));
return type;
} }
int int
ctf_set_array (ctf_dict_t *fp, ctf_id_t type, const ctf_arinfo_t *arp) ctf_set_array (ctf_dict_t *fp, ctf_id_t type, const ctf_arinfo_t *arp)
{ {
ctf_dict_t *ofp = fp; ctf_dict_t *ofp = fp;
ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, type); ctf_dtdef_t *dtd;
ctf_array_t *vlen; ctf_array_t *vlen;
uint32_t idx;
fp = ctf_get_dict (fp, type); if (ctf_lookup_by_id (&fp, type, NULL) == NULL)
return -1; /* errno is set for us. */
idx = ctf_type_to_index (fp, type);
dtd = ctf_dtd_lookup (fp, type);
/* You can only call ctf_set_array on a type you have added, not a /* You can only call ctf_set_array on a type you have added, not a
type that was read in via ctf_open(). */ type that was read in via ctf_open. */
if (type < fp->ctf_stypes) if (idx < fp->ctf_stypes)
return (ctf_set_errno (ofp, ECTF_RDONLY)); return (ctf_set_errno (ofp, ECTF_RDONLY));
if (dtd == NULL if (dtd == NULL
|| LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info) != CTF_K_ARRAY) || LCTF_KIND (fp, dtd->dtd_buf) != CTF_K_ARRAY)
return (ctf_set_errno (ofp, ECTF_BADID)); return (ctf_set_errno (ofp, ECTF_BADID));
vlen = (ctf_array_t *) dtd->dtd_vlen; vlen = (ctf_array_t *) dtd->dtd_vlen;

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@@ -2195,23 +2195,18 @@ ctf_array_info (ctf_dict_t *fp, ctf_id_t type, ctf_arinfo_t *arp)
{ {
ctf_dict_t *ofp = fp; ctf_dict_t *ofp = fp;
const ctf_type_t *tp; const ctf_type_t *tp;
unsigned char *vlen;
const ctf_array_t *ap; const ctf_array_t *ap;
const ctf_dtdef_t *dtd;
ssize_t increment;
if ((tp = ctf_lookup_by_id (&fp, type)) == NULL) if ((tp = ctf_lookup_by_id (&fp, type, NULL)) == NULL)
return -1; /* errno is set for us. */ return -1; /* errno is set for us. */
if (LCTF_INFO_KIND (fp, tp->ctt_info) != CTF_K_ARRAY) if (LCTF_KIND (fp, tp) != CTF_K_ARRAY)
return (ctf_set_errno (ofp, ECTF_NOTARRAY)); return (ctf_set_errno (ofp, ECTF_NOTARRAY));
if ((dtd = ctf_dynamic_type (ofp, type)) != NULL) vlen = ctf_vlen (fp, type, tp, NULL);
ap = (const ctf_array_t *) dtd->dtd_vlen; ap = (const ctf_array_t *) vlen;
else
{
ctf_get_ctt_size (fp, tp, NULL, &increment);
ap = (const ctf_array_t *) ((uintptr_t) tp + increment);
}
arp->ctr_contents = ap->cta_contents; arp->ctr_contents = ap->cta_contents;
arp->ctr_index = ap->cta_index; arp->ctr_index = ap->cta_index;
arp->ctr_nelems = ap->cta_nelems; arp->ctr_nelems = ap->cta_nelems;