-/* CTF file creation.
- Copyright (C) 2019-2020 Free Software Foundation, Inc.
+/* CTF dict creation.
+ Copyright (C) 2019-2023 Free Software Foundation, Inc.
This file is part of libctf.
#include <ctf-impl.h>
#include <sys/param.h>
-#include <assert.h>
#include <string.h>
-#include <zlib.h>
+#include <unistd.h>
+
+#ifndef EOVERFLOW
+#define EOVERFLOW ERANGE
+#endif
#ifndef roundup
#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
#endif
+/* The initial size of a dynamic type's vlen in members. Arbitrary: the bigger
+ this is, the less allocation needs to be done for small structure
+ initialization, and the more memory is wasted for small structures during CTF
+ construction. No effect on generated CTF or ctf_open()ed CTF. */
+#define INITIAL_VLEN 16
+
/* Make sure the ptrtab has enough space for at least one more type.
We start with 4KiB of ptrtab, enough for a thousand types, then grow it 25%
at a time. */
static int
-ctf_grow_ptrtab (ctf_file_t *fp)
+ctf_grow_ptrtab (ctf_dict_t *fp)
{
size_t new_ptrtab_len = fp->ctf_ptrtab_len;
return 0;
}
-/* To create an empty CTF container, we just declare a zeroed header and call
- ctf_bufopen() on it. If ctf_bufopen succeeds, we mark the new container r/w
- and initialize the dynamic members. We start assigning type IDs at 1 because
+/* Make sure a vlen has enough space: expand it otherwise. Unlike the ptrtab,
+ which grows quite slowly, the vlen grows in big jumps because it is quite
+ expensive to expand: the caller has to scan the old vlen for string refs
+ first and remove them, then re-add them afterwards. The initial size is
+ more or less arbitrary. */
+static int
+ctf_grow_vlen (ctf_dict_t *fp, ctf_dtdef_t *dtd, size_t vlen)
+{
+ unsigned char *old = dtd->dtd_vlen;
+
+ if (dtd->dtd_vlen_alloc > vlen)
+ return 0;
+
+ if ((dtd->dtd_vlen = realloc (dtd->dtd_vlen,
+ dtd->dtd_vlen_alloc * 2)) == NULL)
+ {
+ dtd->dtd_vlen = old;
+ return (ctf_set_errno (fp, ENOMEM));
+ }
+ memset (dtd->dtd_vlen + dtd->dtd_vlen_alloc, 0, dtd->dtd_vlen_alloc);
+ dtd->dtd_vlen_alloc *= 2;
+ return 0;
+}
+
+/* To create an empty CTF dict, we just declare a zeroed header and call
+ ctf_bufopen() on it. If ctf_bufopen succeeds, we mark the new dict r/w and
+ initialize the dynamic members. We start assigning type IDs at 1 because
type ID 0 is used as a sentinel and a not-found indicator. */
-ctf_file_t *
+ctf_dict_t *
ctf_create (int *errp)
{
static const ctf_header_t hdr = { .cth_preamble = { CTF_MAGIC, CTF_VERSION, 0 } };
ctf_dynhash_t *dthash;
ctf_dynhash_t *dvhash;
ctf_dynhash_t *structs = NULL, *unions = NULL, *enums = NULL, *names = NULL;
+ ctf_dynhash_t *objthash = NULL, *funchash = NULL;
ctf_sect_t cts;
- ctf_file_t *fp;
+ ctf_dict_t *fp;
libctf_init_debug();
dthash = ctf_dynhash_create (ctf_hash_integer, ctf_hash_eq_integer,
NULL, NULL);
names = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string,
NULL, NULL);
+ objthash = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string,
+ free, NULL);
+ funchash = ctf_dynhash_create (ctf_hash_string, ctf_hash_eq_string,
+ free, NULL);
if (!structs || !unions || !enums || !names)
{
ctf_set_open_errno (errp, EAGAIN);
fp->ctf_unions.ctn_writable = unions;
fp->ctf_enums.ctn_writable = enums;
fp->ctf_names.ctn_writable = names;
+ fp->ctf_objthash = objthash;
+ fp->ctf_funchash = funchash;
fp->ctf_dthash = dthash;
fp->ctf_dvhash = dvhash;
fp->ctf_dtoldid = 0;
fp->ctf_snapshots = 1;
fp->ctf_snapshot_lu = 0;
+ fp->ctf_flags |= LCTF_DIRTY;
ctf_set_ctl_hashes (fp);
ctf_setmodel (fp, CTF_MODEL_NATIVE);
if (ctf_grow_ptrtab (fp) < 0)
{
ctf_set_open_errno (errp, ctf_errno (fp));
- ctf_file_close (fp);
+ ctf_dict_close (fp);
return NULL;
}
ctf_dynhash_destroy (unions);
ctf_dynhash_destroy (enums);
ctf_dynhash_destroy (names);
+ ctf_dynhash_destroy (objthash);
+ ctf_dynhash_destroy (funchash);
ctf_dynhash_destroy (dvhash);
err_dt:
ctf_dynhash_destroy (dthash);
return NULL;
}
-static unsigned char *
-ctf_copy_smembers (ctf_file_t *fp, ctf_dtdef_t *dtd, unsigned char *t)
-{
- ctf_dmdef_t *dmd = ctf_list_next (&dtd->dtd_u.dtu_members);
- ctf_member_t ctm;
-
- for (; dmd != NULL; dmd = ctf_list_next (dmd))
- {
- ctf_member_t *copied;
-
- ctm.ctm_name = 0;
- ctm.ctm_type = (uint32_t) dmd->dmd_type;
- ctm.ctm_offset = (uint32_t) dmd->dmd_offset;
-
- memcpy (t, &ctm, sizeof (ctm));
- copied = (ctf_member_t *) t;
- if (dmd->dmd_name)
- ctf_str_add_ref (fp, dmd->dmd_name, &copied->ctm_name);
-
- t += sizeof (ctm);
- }
-
- return t;
-}
-
-static unsigned char *
-ctf_copy_lmembers (ctf_file_t *fp, ctf_dtdef_t *dtd, unsigned char *t)
-{
- ctf_dmdef_t *dmd = ctf_list_next (&dtd->dtd_u.dtu_members);
- ctf_lmember_t ctlm;
-
- for (; dmd != NULL; dmd = ctf_list_next (dmd))
- {
- ctf_lmember_t *copied;
-
- ctlm.ctlm_name = 0;
- ctlm.ctlm_type = (uint32_t) dmd->dmd_type;
- ctlm.ctlm_offsethi = CTF_OFFSET_TO_LMEMHI (dmd->dmd_offset);
- ctlm.ctlm_offsetlo = CTF_OFFSET_TO_LMEMLO (dmd->dmd_offset);
-
- memcpy (t, &ctlm, sizeof (ctlm));
- copied = (ctf_lmember_t *) t;
- if (dmd->dmd_name)
- ctf_str_add_ref (fp, dmd->dmd_name, &copied->ctlm_name);
-
- t += sizeof (ctlm);
- }
-
- return t;
-}
-
-static unsigned char *
-ctf_copy_emembers (ctf_file_t *fp, ctf_dtdef_t *dtd, unsigned char *t)
-{
- ctf_dmdef_t *dmd = ctf_list_next (&dtd->dtd_u.dtu_members);
- ctf_enum_t cte;
-
- for (; dmd != NULL; dmd = ctf_list_next (dmd))
- {
- ctf_enum_t *copied;
-
- cte.cte_value = dmd->dmd_value;
- memcpy (t, &cte, sizeof (cte));
- copied = (ctf_enum_t *) t;
- ctf_str_add_ref (fp, dmd->dmd_name, &copied->cte_name);
- t += sizeof (cte);
- }
-
- return t;
-}
-
-/* Sort a newly-constructed static variable array. */
-
-typedef struct ctf_sort_var_arg_cb
-{
- ctf_file_t *fp;
- ctf_strs_t *strtab;
-} ctf_sort_var_arg_cb_t;
-
-static int
-ctf_sort_var (const void *one_, const void *two_, void *arg_)
-{
- const ctf_varent_t *one = one_;
- const ctf_varent_t *two = two_;
- ctf_sort_var_arg_cb_t *arg = arg_;
-
- return (strcmp (ctf_strraw_explicit (arg->fp, one->ctv_name, arg->strtab),
- ctf_strraw_explicit (arg->fp, two->ctv_name, arg->strtab)));
-}
-
/* Compatibility: just update the threshold for ctf_discard. */
int
-ctf_update (ctf_file_t *fp)
+ctf_update (ctf_dict_t *fp)
{
if (!(fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno (fp, ECTF_RDONLY));
return 0;
}
-/* If the specified CTF container is writable and has been modified, reload this
- container with the updated type definitions, ready for serialization. In
- order to make this code and the rest of libctf as simple as possible, we
- perform updates by taking the dynamic type definitions and creating an
- in-memory CTF file containing the definitions, and then call
- ctf_simple_open_internal() on it. We perform one extra trick here for the
- benefit of callers and to keep our code simple: ctf_simple_open_internal()
- will return a new ctf_file_t, but we want to keep the fp constant for the
- caller, so after ctf_simple_open_internal() returns, we use memcpy to swap
- the interior of the old and new ctf_file_t's, and then free the old. */
-int
-ctf_serialize (ctf_file_t *fp)
-{
- ctf_file_t ofp, *nfp;
- ctf_header_t hdr, *hdrp;
- ctf_dtdef_t *dtd;
- ctf_dvdef_t *dvd;
- ctf_varent_t *dvarents;
- ctf_strs_writable_t strtab;
-
- unsigned char *t;
- unsigned long i;
- size_t buf_size, type_size, nvars;
- unsigned char *buf, *newbuf;
- int err;
-
- if (!(fp->ctf_flags & LCTF_RDWR))
- return (ctf_set_errno (fp, ECTF_RDONLY));
-
- /* Update required? */
- if (!(fp->ctf_flags & LCTF_DIRTY))
- return 0;
-
- /* Fill in an initial CTF header. We will leave the label, object,
- and function sections empty and only output a header, type section,
- and string table. The type section begins at a 4-byte aligned
- boundary past the CTF header itself (at relative offset zero). */
-
- memset (&hdr, 0, sizeof (hdr));
- hdr.cth_magic = CTF_MAGIC;
- hdr.cth_version = CTF_VERSION;
-
- /* Iterate through the dynamic type definition list and compute the
- size of the CTF type section we will need to generate. */
-
- for (type_size = 0, dtd = ctf_list_next (&fp->ctf_dtdefs);
- dtd != NULL; dtd = ctf_list_next (dtd))
- {
- uint32_t kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info);
- uint32_t vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info);
-
- if (dtd->dtd_data.ctt_size != CTF_LSIZE_SENT)
- type_size += sizeof (ctf_stype_t);
- else
- type_size += sizeof (ctf_type_t);
-
- switch (kind)
- {
- case CTF_K_INTEGER:
- case CTF_K_FLOAT:
- type_size += sizeof (uint32_t);
- break;
- case CTF_K_ARRAY:
- type_size += sizeof (ctf_array_t);
- break;
- case CTF_K_SLICE:
- type_size += sizeof (ctf_slice_t);
- break;
- case CTF_K_FUNCTION:
- type_size += sizeof (uint32_t) * (vlen + (vlen & 1));
- break;
- case CTF_K_STRUCT:
- case CTF_K_UNION:
- if (dtd->dtd_data.ctt_size < CTF_LSTRUCT_THRESH)
- type_size += sizeof (ctf_member_t) * vlen;
- else
- type_size += sizeof (ctf_lmember_t) * vlen;
- break;
- case CTF_K_ENUM:
- type_size += sizeof (ctf_enum_t) * vlen;
- break;
- }
- }
-
- /* Computing the number of entries in the CTF variable section is much
- simpler. */
-
- for (nvars = 0, dvd = ctf_list_next (&fp->ctf_dvdefs);
- dvd != NULL; dvd = ctf_list_next (dvd), nvars++);
-
- /* Compute the size of the CTF buffer we need, sans only the string table,
- then allocate a new buffer and memcpy the finished header to the start of
- the buffer. (We will adjust this later with strtab length info.) */
-
- hdr.cth_typeoff = hdr.cth_varoff + (nvars * sizeof (ctf_varent_t));
- hdr.cth_stroff = hdr.cth_typeoff + type_size;
- hdr.cth_strlen = 0;
-
- buf_size = sizeof (ctf_header_t) + hdr.cth_stroff + hdr.cth_strlen;
-
- if ((buf = malloc (buf_size)) == NULL)
- return (ctf_set_errno (fp, EAGAIN));
-
- memcpy (buf, &hdr, sizeof (ctf_header_t));
- t = (unsigned char *) buf + sizeof (ctf_header_t) + hdr.cth_varoff;
-
- hdrp = (ctf_header_t *) buf;
- if ((fp->ctf_flags & LCTF_CHILD) && (fp->ctf_parname != NULL))
- ctf_str_add_ref (fp, fp->ctf_parname, &hdrp->cth_parname);
- if (fp->ctf_cuname != NULL)
- ctf_str_add_ref (fp, fp->ctf_cuname, &hdrp->cth_cuname);
-
- /* Work over the variable list, translating everything into ctf_varent_t's and
- prepping the string table. */
-
- dvarents = (ctf_varent_t *) t;
- for (i = 0, dvd = ctf_list_next (&fp->ctf_dvdefs); dvd != NULL;
- dvd = ctf_list_next (dvd), i++)
- {
- ctf_varent_t *var = &dvarents[i];
-
- ctf_str_add_ref (fp, dvd->dvd_name, &var->ctv_name);
- var->ctv_type = dvd->dvd_type;
- }
- assert (i == nvars);
-
- t += sizeof (ctf_varent_t) * nvars;
-
- assert (t == (unsigned char *) buf + sizeof (ctf_header_t) + hdr.cth_typeoff);
-
- /* We now take a final lap through the dynamic type definition list and copy
- the appropriate type records to the output buffer, noting down the
- strings as we go. */
-
- for (dtd = ctf_list_next (&fp->ctf_dtdefs);
- dtd != NULL; dtd = ctf_list_next (dtd))
- {
- uint32_t kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info);
- uint32_t vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info);
-
- ctf_array_t cta;
- uint32_t encoding;
- size_t len;
- ctf_stype_t *copied;
- const char *name;
-
- if (dtd->dtd_data.ctt_size != CTF_LSIZE_SENT)
- len = sizeof (ctf_stype_t);
- else
- len = sizeof (ctf_type_t);
-
- memcpy (t, &dtd->dtd_data, len);
- copied = (ctf_stype_t *) t; /* name is at the start: constant offset. */
- if (copied->ctt_name
- && (name = ctf_strraw (fp, copied->ctt_name)) != NULL)
- ctf_str_add_ref (fp, name, &copied->ctt_name);
- t += len;
-
- switch (kind)
- {
- case CTF_K_INTEGER:
- case CTF_K_FLOAT:
- if (kind == CTF_K_INTEGER)
- {
- encoding = CTF_INT_DATA (dtd->dtd_u.dtu_enc.cte_format,
- dtd->dtd_u.dtu_enc.cte_offset,
- dtd->dtd_u.dtu_enc.cte_bits);
- }
- else
- {
- encoding = CTF_FP_DATA (dtd->dtd_u.dtu_enc.cte_format,
- dtd->dtd_u.dtu_enc.cte_offset,
- dtd->dtd_u.dtu_enc.cte_bits);
- }
- memcpy (t, &encoding, sizeof (encoding));
- t += sizeof (encoding);
- break;
-
- case CTF_K_SLICE:
- memcpy (t, &dtd->dtd_u.dtu_slice, sizeof (struct ctf_slice));
- t += sizeof (struct ctf_slice);
- break;
-
- case CTF_K_ARRAY:
- cta.cta_contents = (uint32_t) dtd->dtd_u.dtu_arr.ctr_contents;
- cta.cta_index = (uint32_t) dtd->dtd_u.dtu_arr.ctr_index;
- cta.cta_nelems = dtd->dtd_u.dtu_arr.ctr_nelems;
- memcpy (t, &cta, sizeof (cta));
- t += sizeof (cta);
- break;
-
- case CTF_K_FUNCTION:
- {
- uint32_t *argv = (uint32_t *) (uintptr_t) t;
- uint32_t argc;
-
- for (argc = 0; argc < vlen; argc++)
- *argv++ = (uint32_t) dtd->dtd_u.dtu_argv[argc];
-
- if (vlen & 1)
- *argv++ = 0; /* Pad to 4-byte boundary. */
-
- t = (unsigned char *) argv;
- break;
- }
-
- case CTF_K_STRUCT:
- case CTF_K_UNION:
- if (dtd->dtd_data.ctt_size < CTF_LSTRUCT_THRESH)
- t = ctf_copy_smembers (fp, dtd, t);
- else
- t = ctf_copy_lmembers (fp, dtd, t);
- break;
-
- case CTF_K_ENUM:
- t = ctf_copy_emembers (fp, dtd, t);
- break;
- }
- }
- assert (t == (unsigned char *) buf + sizeof (ctf_header_t) + hdr.cth_stroff);
-
- /* Construct the final string table and fill out all the string refs with the
- final offsets. Then purge the refs list, because we're about to move this
- strtab onto the end of the buf, invalidating all the offsets. */
- strtab = ctf_str_write_strtab (fp);
- ctf_str_purge_refs (fp);
-
- if (strtab.cts_strs == NULL)
- {
- free (buf);
- return (ctf_set_errno (fp, EAGAIN));
- }
-
- /* Now the string table is constructed, we can sort the buffer of
- ctf_varent_t's. */
- ctf_sort_var_arg_cb_t sort_var_arg = { fp, (ctf_strs_t *) &strtab };
- ctf_qsort_r (dvarents, nvars, sizeof (ctf_varent_t), ctf_sort_var,
- &sort_var_arg);
-
- if ((newbuf = ctf_realloc (fp, buf, buf_size + strtab.cts_len)) == NULL)
- {
- free (buf);
- free (strtab.cts_strs);
- return (ctf_set_errno (fp, EAGAIN));
- }
- buf = newbuf;
- memcpy (buf + buf_size, strtab.cts_strs, strtab.cts_len);
- hdrp = (ctf_header_t *) buf;
- hdrp->cth_strlen = strtab.cts_len;
- buf_size += hdrp->cth_strlen;
- free (strtab.cts_strs);
-
- /* Finally, we are ready to ctf_simple_open() the new container. If this
- is successful, we then switch nfp and fp and free the old container. */
-
- if ((nfp = ctf_simple_open_internal ((char *) buf, buf_size, NULL, 0,
- 0, NULL, 0, fp->ctf_syn_ext_strtab,
- 1, &err)) == NULL)
- {
- free (buf);
- return (ctf_set_errno (fp, err));
- }
-
- (void) ctf_setmodel (nfp, ctf_getmodel (fp));
- (void) ctf_import (nfp, fp->ctf_parent);
-
- nfp->ctf_refcnt = fp->ctf_refcnt;
- nfp->ctf_flags |= fp->ctf_flags & ~LCTF_DIRTY;
- if (nfp->ctf_dynbase == NULL)
- nfp->ctf_dynbase = buf; /* Make sure buf is freed on close. */
- nfp->ctf_dthash = fp->ctf_dthash;
- nfp->ctf_dtdefs = fp->ctf_dtdefs;
- nfp->ctf_dvhash = fp->ctf_dvhash;
- nfp->ctf_dvdefs = fp->ctf_dvdefs;
- nfp->ctf_dtoldid = fp->ctf_dtoldid;
- nfp->ctf_add_processing = fp->ctf_add_processing;
- nfp->ctf_snapshots = fp->ctf_snapshots + 1;
- nfp->ctf_specific = fp->ctf_specific;
- nfp->ctf_ptrtab = fp->ctf_ptrtab;
- nfp->ctf_ptrtab_len = fp->ctf_ptrtab_len;
- nfp->ctf_link_inputs = fp->ctf_link_inputs;
- nfp->ctf_link_outputs = fp->ctf_link_outputs;
- nfp->ctf_str_prov_offset = fp->ctf_str_prov_offset;
- nfp->ctf_syn_ext_strtab = fp->ctf_syn_ext_strtab;
- nfp->ctf_link_cu_mapping = fp->ctf_link_cu_mapping;
- nfp->ctf_link_type_mapping = fp->ctf_link_type_mapping;
- nfp->ctf_link_memb_name_changer = fp->ctf_link_memb_name_changer;
- nfp->ctf_link_memb_name_changer_arg = fp->ctf_link_memb_name_changer_arg;
-
- nfp->ctf_snapshot_lu = fp->ctf_snapshots;
-
- memcpy (&nfp->ctf_lookups, fp->ctf_lookups, sizeof (fp->ctf_lookups));
- nfp->ctf_structs = fp->ctf_structs;
- nfp->ctf_unions = fp->ctf_unions;
- nfp->ctf_enums = fp->ctf_enums;
- nfp->ctf_names = fp->ctf_names;
-
- fp->ctf_dthash = NULL;
- ctf_str_free_atoms (nfp);
- nfp->ctf_str_atoms = fp->ctf_str_atoms;
- nfp->ctf_prov_strtab = fp->ctf_prov_strtab;
- fp->ctf_str_atoms = NULL;
- fp->ctf_prov_strtab = NULL;
- memset (&fp->ctf_dtdefs, 0, sizeof (ctf_list_t));
- fp->ctf_add_processing = NULL;
- fp->ctf_ptrtab = NULL;
- fp->ctf_link_inputs = NULL;
- fp->ctf_link_outputs = NULL;
- fp->ctf_syn_ext_strtab = NULL;
- fp->ctf_link_cu_mapping = NULL;
- fp->ctf_link_type_mapping = NULL;
-
- fp->ctf_dvhash = NULL;
- memset (&fp->ctf_dvdefs, 0, sizeof (ctf_list_t));
- memset (fp->ctf_lookups, 0, sizeof (fp->ctf_lookups));
- fp->ctf_structs.ctn_writable = NULL;
- fp->ctf_unions.ctn_writable = NULL;
- fp->ctf_enums.ctn_writable = NULL;
- fp->ctf_names.ctn_writable = NULL;
-
- memcpy (&ofp, fp, sizeof (ctf_file_t));
- memcpy (fp, nfp, sizeof (ctf_file_t));
- memcpy (nfp, &ofp, sizeof (ctf_file_t));
-
- nfp->ctf_refcnt = 1; /* Force nfp to be freed. */
- ctf_file_close (nfp);
-
- return 0;
-}
-
ctf_names_t *
-ctf_name_table (ctf_file_t *fp, int kind)
+ctf_name_table (ctf_dict_t *fp, int kind)
{
switch (kind)
{
}
int
-ctf_dtd_insert (ctf_file_t *fp, ctf_dtdef_t *dtd, int kind)
+ctf_dtd_insert (ctf_dict_t *fp, ctf_dtdef_t *dtd, int flag, int kind)
{
const char *name;
- if (ctf_dynhash_insert (fp->ctf_dthash, (void *) dtd->dtd_type, dtd) < 0)
- return -1;
+ if (ctf_dynhash_insert (fp->ctf_dthash, (void *) (uintptr_t) dtd->dtd_type,
+ dtd) < 0)
+ {
+ ctf_set_errno (fp, ENOMEM);
+ return -1;
+ }
- if (dtd->dtd_data.ctt_name
+ if (flag == CTF_ADD_ROOT && dtd->dtd_data.ctt_name
&& (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL)
{
if (ctf_dynhash_insert (ctf_name_table (fp, kind)->ctn_writable,
- (char *) name, (void *) dtd->dtd_type) < 0)
+ (char *) name, (void *) (uintptr_t)
+ dtd->dtd_type) < 0)
{
- ctf_dynhash_remove (fp->ctf_dthash, (void *) dtd->dtd_type);
+ ctf_dynhash_remove (fp->ctf_dthash, (void *) (uintptr_t)
+ dtd->dtd_type);
+ ctf_set_errno (fp, ENOMEM);
return -1;
}
}
}
void
-ctf_dtd_delete (ctf_file_t *fp, ctf_dtdef_t *dtd)
+ctf_dtd_delete (ctf_dict_t *fp, ctf_dtdef_t *dtd)
{
- ctf_dmdef_t *dmd, *nmd;
int kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info);
+ size_t vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info);
+ int name_kind = kind;
const char *name;
- ctf_dynhash_remove (fp->ctf_dthash, (void *) dtd->dtd_type);
+ ctf_dynhash_remove (fp->ctf_dthash, (void *) (uintptr_t) dtd->dtd_type);
switch (kind)
{
case CTF_K_STRUCT:
case CTF_K_UNION:
+ {
+ ctf_lmember_t *memb = (ctf_lmember_t *) dtd->dtd_vlen;
+ size_t i;
+
+ for (i = 0; i < vlen; i++)
+ ctf_str_remove_ref (fp, ctf_strraw (fp, memb[i].ctlm_name),
+ &memb[i].ctlm_name);
+ }
+ break;
case CTF_K_ENUM:
- for (dmd = ctf_list_next (&dtd->dtd_u.dtu_members);
- dmd != NULL; dmd = nmd)
- {
- if (dmd->dmd_name != NULL)
- free (dmd->dmd_name);
- nmd = ctf_list_next (dmd);
- free (dmd);
- }
+ {
+ ctf_enum_t *en = (ctf_enum_t *) dtd->dtd_vlen;
+ size_t i;
+
+ for (i = 0; i < vlen; i++)
+ ctf_str_remove_ref (fp, ctf_strraw (fp, en[i].cte_name),
+ &en[i].cte_name);
+ }
break;
- case CTF_K_FUNCTION:
- free (dtd->dtd_u.dtu_argv);
+ case CTF_K_FORWARD:
+ name_kind = dtd->dtd_data.ctt_type;
break;
}
+ free (dtd->dtd_vlen);
+ dtd->dtd_vlen_alloc = 0;
if (dtd->dtd_data.ctt_name
- && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL)
+ && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL
+ && LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info))
{
- ctf_dynhash_remove (ctf_name_table (fp, kind)->ctn_writable,
+ ctf_dynhash_remove (ctf_name_table (fp, name_kind)->ctn_writable,
name);
ctf_str_remove_ref (fp, name, &dtd->dtd_data.ctt_name);
}
}
ctf_dtdef_t *
-ctf_dtd_lookup (const ctf_file_t *fp, ctf_id_t type)
+ctf_dtd_lookup (const ctf_dict_t *fp, ctf_id_t type)
{
- return (ctf_dtdef_t *) ctf_dynhash_lookup (fp->ctf_dthash, (void *) type);
+ return (ctf_dtdef_t *)
+ ctf_dynhash_lookup (fp->ctf_dthash, (void *) (uintptr_t) type);
}
ctf_dtdef_t *
-ctf_dynamic_type (const ctf_file_t *fp, ctf_id_t id)
+ctf_dynamic_type (const ctf_dict_t *fp, ctf_id_t id)
{
ctf_id_t idx;
}
int
-ctf_dvd_insert (ctf_file_t *fp, ctf_dvdef_t *dvd)
+ctf_dvd_insert (ctf_dict_t *fp, ctf_dvdef_t *dvd)
{
if (ctf_dynhash_insert (fp->ctf_dvhash, dvd->dvd_name, dvd) < 0)
- return -1;
+ {
+ ctf_set_errno (fp, ENOMEM);
+ return -1;
+ }
ctf_list_append (&fp->ctf_dvdefs, dvd);
return 0;
}
void
-ctf_dvd_delete (ctf_file_t *fp, ctf_dvdef_t *dvd)
+ctf_dvd_delete (ctf_dict_t *fp, ctf_dvdef_t *dvd)
{
ctf_dynhash_remove (fp->ctf_dvhash, dvd->dvd_name);
free (dvd->dvd_name);
}
ctf_dvdef_t *
-ctf_dvd_lookup (const ctf_file_t *fp, const char *name)
+ctf_dvd_lookup (const ctf_dict_t *fp, const char *name)
{
return (ctf_dvdef_t *) ctf_dynhash_lookup (fp->ctf_dvhash, name);
}
/* Discard all of the dynamic type definitions and variable definitions that
- have been added to the container since the last call to ctf_update(). We
- locate such types by scanning the dtd list and deleting elements that have
- type IDs greater than ctf_dtoldid, which is set by ctf_update(), above, and
- by scanning the variable list and deleting elements that have update IDs
- equal to the current value of the last-update snapshot count (indicating that
- they were added after the most recent call to ctf_update()). */
+ have been added to the dict since the last call to ctf_update(). We locate
+ such types by scanning the dtd list and deleting elements that have type IDs
+ greater than ctf_dtoldid, which is set by ctf_update(), above, and by
+ scanning the variable list and deleting elements that have update IDs equal
+ to the current value of the last-update snapshot count (indicating that they
+ were added after the most recent call to ctf_update()). */
int
-ctf_discard (ctf_file_t *fp)
+ctf_discard (ctf_dict_t *fp)
{
ctf_snapshot_id_t last_update =
{ fp->ctf_dtoldid,
}
ctf_snapshot_id_t
-ctf_snapshot (ctf_file_t *fp)
+ctf_snapshot (ctf_dict_t *fp)
{
ctf_snapshot_id_t snapid;
snapid.dtd_id = fp->ctf_typemax;
/* Like ctf_discard(), only discards everything after a particular ID. */
int
-ctf_rollback (ctf_file_t *fp, ctf_snapshot_id_t id)
+ctf_rollback (ctf_dict_t *fp, ctf_snapshot_id_t id)
{
ctf_dtdef_t *dtd, *ntd;
ctf_dvdef_t *dvd, *nvd;
continue;
kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info);
+ if (kind == CTF_K_FORWARD)
+ kind = dtd->dtd_data.ctt_type;
if (dtd->dtd_data.ctt_name
- && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL)
+ && (name = ctf_strraw (fp, dtd->dtd_data.ctt_name)) != NULL
+ && LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info))
{
ctf_dynhash_remove (ctf_name_table (fp, kind)->ctn_writable,
name);
ctf_str_remove_ref (fp, name, &dtd->dtd_data.ctt_name);
}
- ctf_dynhash_remove (fp->ctf_dthash, (void *) dtd->dtd_type);
+ ctf_dynhash_remove (fp->ctf_dthash, (void *) (uintptr_t) dtd->dtd_type);
ctf_dtd_delete (fp, dtd);
}
return 0;
}
+/* Note: vlen is the amount of space *allocated* for the vlen. It may well not
+ be the amount of space used (yet): the space used is declared in per-kind
+ fashion in the dtd_data's info word. */
static ctf_id_t
-ctf_add_generic (ctf_file_t *fp, uint32_t flag, const char *name, int kind,
- ctf_dtdef_t **rp)
+ctf_add_generic (ctf_dict_t *fp, uint32_t flag, const char *name, int kind,
+ size_t vlen, ctf_dtdef_t **rp)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
/* Make sure ptrtab always grows to be big enough for all types. */
if (ctf_grow_ptrtab (fp) < 0)
- return CTF_ERR; /* errno is set for us. */
+ return CTF_ERR; /* errno is set for us. */
- if ((dtd = malloc (sizeof (ctf_dtdef_t))) == NULL)
+ if ((dtd = calloc (1, sizeof (ctf_dtdef_t))) == NULL)
return (ctf_set_errno (fp, EAGAIN));
+ dtd->dtd_vlen_alloc = vlen;
+ if (vlen > 0)
+ {
+ if ((dtd->dtd_vlen = calloc (1, vlen)) == NULL)
+ goto oom;
+ }
+ else
+ dtd->dtd_vlen = NULL;
+
type = ++fp->ctf_typemax;
type = LCTF_INDEX_TO_TYPE (fp, type, (fp->ctf_flags & LCTF_CHILD));
- memset (dtd, 0, sizeof (ctf_dtdef_t));
- dtd->dtd_data.ctt_name = ctf_str_add_ref (fp, name, &dtd->dtd_data.ctt_name);
+ dtd->dtd_data.ctt_name = ctf_str_add_pending (fp, name,
+ &dtd->dtd_data.ctt_name);
dtd->dtd_type = type;
if (dtd->dtd_data.ctt_name == 0 && name != NULL && name[0] != '\0')
- {
- free (dtd);
- return (ctf_set_errno (fp, EAGAIN));
- }
+ goto oom;
+
+ if (ctf_dtd_insert (fp, dtd, flag, kind) < 0)
+ goto err; /* errno is set for us. */
- if (ctf_dtd_insert (fp, dtd, kind) < 0)
- {
- free (dtd);
- return CTF_ERR; /* errno is set for us. */
- }
fp->ctf_flags |= LCTF_DIRTY;
*rp = dtd;
return type;
+
+ oom:
+ ctf_set_errno (fp, EAGAIN);
+ err:
+ free (dtd->dtd_vlen);
+ free (dtd);
+ return CTF_ERR;
}
/* When encoding integer sizes, we want to convert a byte count in the range
return (x + 1);
}
-static ctf_id_t
-ctf_add_encoded (ctf_file_t *fp, uint32_t flag,
+ctf_id_t
+ctf_add_encoded (ctf_dict_t *fp, uint32_t flag,
const char *name, const ctf_encoding_t *ep, uint32_t kind)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
+ uint32_t encoding;
if (ep == NULL)
return (ctf_set_errno (fp, EINVAL));
- if ((type = ctf_add_generic (fp, flag, name, kind, &dtd)) == CTF_ERR)
+ if (name == NULL || name[0] == '\0')
+ return (ctf_set_errno (fp, ECTF_NONAME));
+
+ if (!ctf_assert (fp, kind == CTF_K_INTEGER || kind == CTF_K_FLOAT))
+ return -1; /* errno is set for us. */
+
+ if ((type = ctf_add_generic (fp, flag, name, kind, sizeof (uint32_t),
+ &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, CHAR_BIT)
/ CHAR_BIT);
- dtd->dtd_u.dtu_enc = *ep;
+ switch (kind)
+ {
+ case CTF_K_INTEGER:
+ encoding = CTF_INT_DATA (ep->cte_format, ep->cte_offset, ep->cte_bits);
+ break;
+ case CTF_K_FLOAT:
+ encoding = CTF_FP_DATA (ep->cte_format, ep->cte_offset, ep->cte_bits);
+ break;
+ }
+ memcpy (dtd->dtd_vlen, &encoding, sizeof (encoding));
return type;
}
-static ctf_id_t
-ctf_add_reftype (ctf_file_t *fp, uint32_t flag, ctf_id_t ref, uint32_t kind)
+ctf_id_t
+ctf_add_reftype (ctf_dict_t *fp, uint32_t flag, ctf_id_t ref, uint32_t kind)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
- ctf_file_t *tmp = fp;
+ ctf_dict_t *tmp = fp;
int child = fp->ctf_flags & LCTF_CHILD;
if (ref == CTF_ERR || ref > CTF_MAX_TYPE)
return (ctf_set_errno (fp, EINVAL));
- if (ctf_lookup_by_id (&tmp, ref) == NULL)
+ if (ref != 0 && ctf_lookup_by_id (&tmp, ref) == NULL)
return CTF_ERR; /* errno is set for us. */
- if ((type = ctf_add_generic (fp, flag, NULL, kind, &dtd)) == CTF_ERR)
+ if ((type = ctf_add_generic (fp, flag, NULL, kind, 0, &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, flag, 0);
if (kind != CTF_K_POINTER)
return type;
- /* If we are adding a pointer, update the ptrtab, both the directly pointed-to
- type and (if an anonymous typedef node is being pointed at) the type that
- points at too. Note that ctf_typemax is at this point one higher than we
- want to check against, because it's just been incremented for the addition
- of this type. */
+ /* If we are adding a pointer, update the ptrtab, pointing at this type from
+ the type it points to. Note that ctf_typemax is at this point one higher
+ than we want to check against, because it's just been incremented for the
+ addition of this type. The pptrtab is lazily-updated as needed, so is not
+ touched here. */
uint32_t type_idx = LCTF_TYPE_TO_INDEX (fp, type);
uint32_t ref_idx = LCTF_TYPE_TO_INDEX (fp, ref);
if (LCTF_TYPE_ISCHILD (fp, ref) == child
&& ref_idx < fp->ctf_typemax)
- {
- fp->ctf_ptrtab[ref_idx] = type_idx;
-
- ctf_id_t refref_idx = LCTF_TYPE_TO_INDEX (fp, dtd->dtd_data.ctt_type);
-
- if (tmp == fp
- && (LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info) == CTF_K_TYPEDEF)
- && strcmp (ctf_strptr (fp, dtd->dtd_data.ctt_name), "") == 0
- && refref_idx < fp->ctf_typemax)
- fp->ctf_ptrtab[refref_idx] = type_idx;
- }
+ fp->ctf_ptrtab[ref_idx] = type_idx;
return type;
}
ctf_id_t
-ctf_add_slice (ctf_file_t *fp, uint32_t flag, ctf_id_t ref,
+ctf_add_slice (ctf_dict_t *fp, uint32_t flag, ctf_id_t ref,
const ctf_encoding_t *ep)
{
ctf_dtdef_t *dtd;
+ ctf_slice_t slice;
+ ctf_id_t resolved_ref = ref;
ctf_id_t type;
int kind;
const ctf_type_t *tp;
- ctf_file_t *tmp = fp;
+ ctf_dict_t *tmp = fp;
if (ep == NULL)
return (ctf_set_errno (fp, EINVAL));
if (ref == CTF_ERR || ref > CTF_MAX_TYPE)
return (ctf_set_errno (fp, EINVAL));
- if ((tp = ctf_lookup_by_id (&tmp, ref)) == NULL)
+ if (ref != 0 && ((tp = ctf_lookup_by_id (&tmp, ref)) == NULL))
return CTF_ERR; /* errno is set for us. */
- kind = ctf_type_kind_unsliced (tmp, ref);
+ /* Make sure we ultimately point to an integral type. We also allow slices to
+ point to the unimplemented type, for now, because the compiler can emit
+ such slices, though they're not very much use. */
+
+ resolved_ref = ctf_type_resolve_unsliced (tmp, ref);
+ kind = ctf_type_kind_unsliced (tmp, resolved_ref);
+
if ((kind != CTF_K_INTEGER) && (kind != CTF_K_FLOAT) &&
- (kind != CTF_K_ENUM))
+ (kind != CTF_K_ENUM)
+ && (ref != 0))
return (ctf_set_errno (fp, ECTF_NOTINTFP));
- if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_SLICE, &dtd)) == CTF_ERR)
+ if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_SLICE,
+ sizeof (ctf_slice_t), &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
+ memset (&slice, 0, sizeof (ctf_slice_t));
+
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_SLICE, flag, 0);
dtd->dtd_data.ctt_size = clp2 (P2ROUNDUP (ep->cte_bits, CHAR_BIT)
/ CHAR_BIT);
- dtd->dtd_u.dtu_slice.cts_type = ref;
- dtd->dtd_u.dtu_slice.cts_bits = ep->cte_bits;
- dtd->dtd_u.dtu_slice.cts_offset = ep->cte_offset;
+ slice.cts_type = (uint32_t) ref;
+ slice.cts_bits = ep->cte_bits;
+ slice.cts_offset = ep->cte_offset;
+ memcpy (dtd->dtd_vlen, &slice, sizeof (ctf_slice_t));
return type;
}
ctf_id_t
-ctf_add_integer (ctf_file_t *fp, uint32_t flag,
+ctf_add_integer (ctf_dict_t *fp, uint32_t flag,
const char *name, const ctf_encoding_t *ep)
{
return (ctf_add_encoded (fp, flag, name, ep, CTF_K_INTEGER));
}
ctf_id_t
-ctf_add_float (ctf_file_t *fp, uint32_t flag,
+ctf_add_float (ctf_dict_t *fp, uint32_t flag,
const char *name, const ctf_encoding_t *ep)
{
return (ctf_add_encoded (fp, flag, name, ep, CTF_K_FLOAT));
}
ctf_id_t
-ctf_add_pointer (ctf_file_t *fp, uint32_t flag, ctf_id_t ref)
+ctf_add_pointer (ctf_dict_t *fp, uint32_t flag, ctf_id_t ref)
{
return (ctf_add_reftype (fp, flag, ref, CTF_K_POINTER));
}
ctf_id_t
-ctf_add_array (ctf_file_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_array_t cta;
ctf_id_t type;
- ctf_file_t *tmp = fp;
+ ctf_dict_t *tmp = fp;
if (arp == NULL)
return (ctf_set_errno (fp, EINVAL));
- if (ctf_lookup_by_id (&tmp, arp->ctr_contents) == NULL)
+ if (arp->ctr_contents != 0
+ && ctf_lookup_by_id (&tmp, arp->ctr_contents) == NULL)
return CTF_ERR; /* errno is set for us. */
tmp = fp;
if (ctf_lookup_by_id (&tmp, arp->ctr_index) == NULL)
return CTF_ERR; /* errno is set for us. */
- if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_ARRAY, &dtd)) == CTF_ERR)
+ if (ctf_type_kind (fp, arp->ctr_index) == CTF_K_FORWARD)
+ {
+ ctf_err_warn (fp, 1, ECTF_INCOMPLETE,
+ _("ctf_add_array: index type %lx is incomplete"),
+ arp->ctr_contents);
+ return (ctf_set_errno (fp, ECTF_INCOMPLETE));
+ }
+
+ if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_ARRAY,
+ sizeof (ctf_array_t), &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
+ memset (&cta, 0, sizeof (ctf_array_t));
+
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;
+ 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
-ctf_set_array (ctf_file_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_dtdef_t *dtd = ctf_dtd_lookup (fp, type);
+ ctf_array_t *vlen;
if (!(fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno (fp, ECTF_RDONLY));
|| LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info) != CTF_K_ARRAY)
return (ctf_set_errno (fp, ECTF_BADID));
+ vlen = (ctf_array_t *) dtd->dtd_vlen;
fp->ctf_flags |= LCTF_DIRTY;
- dtd->dtd_u.dtu_arr = *arp;
+ vlen->cta_contents = (uint32_t) arp->ctr_contents;
+ vlen->cta_index = (uint32_t) arp->ctr_index;
+ vlen->cta_nelems = arp->ctr_nelems;
return 0;
}
ctf_id_t
-ctf_add_function (ctf_file_t *fp, uint32_t flag,
+ctf_add_function (ctf_dict_t *fp, uint32_t flag,
const ctf_funcinfo_t *ctc, const ctf_id_t *argv)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
uint32_t vlen;
- ctf_id_t *vdat = NULL;
- ctf_file_t *tmp = fp;
+ uint32_t *vdat;
+ ctf_dict_t *tmp = fp;
+ size_t initial_vlen;
size_t i;
+ if (!(fp->ctf_flags & LCTF_RDWR))
+ return (ctf_set_errno (fp, ECTF_RDONLY));
+
if (ctc == NULL || (ctc->ctc_flags & ~CTF_FUNC_VARARG) != 0
|| (ctc->ctc_argc != 0 && argv == NULL))
return (ctf_set_errno (fp, EINVAL));
if (ctc->ctc_flags & CTF_FUNC_VARARG)
vlen++; /* Add trailing zero to indicate varargs (see below). */
- if (ctf_lookup_by_id (&tmp, ctc->ctc_return) == NULL)
- return CTF_ERR; /* errno is set for us. */
-
- for (i = 0; i < ctc->ctc_argc; i++)
- {
- tmp = fp;
- if (ctf_lookup_by_id (&tmp, argv[i]) == NULL)
- return CTF_ERR; /* errno is set for us. */
- }
+ if (ctc->ctc_return != 0
+ && ctf_lookup_by_id (&tmp, ctc->ctc_return) == NULL)
+ return CTF_ERR; /* errno is set for us. */
if (vlen > CTF_MAX_VLEN)
return (ctf_set_errno (fp, EOVERFLOW));
- if (vlen != 0 && (vdat = malloc (sizeof (ctf_id_t) * vlen)) == NULL)
- return (ctf_set_errno (fp, EAGAIN));
+ /* One word extra allocated for padding for 4-byte alignment if need be.
+ Not reflected in vlen: we don't want to copy anything into it, and
+ it's in addition to (e.g.) the trailing 0 indicating varargs. */
+ initial_vlen = (sizeof (uint32_t) * (vlen + (vlen & 1)));
if ((type = ctf_add_generic (fp, flag, NULL, CTF_K_FUNCTION,
- &dtd)) == CTF_ERR)
+ initial_vlen, &dtd)) == CTF_ERR)
+ return CTF_ERR; /* errno is set for us. */
+
+ vdat = (uint32_t *) dtd->dtd_vlen;
+
+ for (i = 0; i < ctc->ctc_argc; i++)
{
- free (vdat);
- return CTF_ERR; /* errno is set for us. */
+ tmp = fp;
+ if (argv[i] != 0 && ctf_lookup_by_id (&tmp, argv[i]) == NULL)
+ return CTF_ERR; /* errno is set for us. */
+ vdat[i] = (uint32_t) argv[i];
}
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_FUNCTION, flag, vlen);
dtd->dtd_data.ctt_type = (uint32_t) ctc->ctc_return;
- memcpy (vdat, argv, 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;
}
ctf_id_t
-ctf_add_struct_sized (ctf_file_t *fp, uint32_t flag, const char *name,
+ctf_add_struct_sized (ctf_dict_t *fp, uint32_t flag, const char *name,
size_t size)
{
ctf_dtdef_t *dtd;
ctf_id_t type = 0;
+ size_t initial_vlen = sizeof (ctf_lmember_t) * INITIAL_VLEN;
- /* Promote forwards to structs. */
-
+ /* Promote root-visible forwards to structs. */
if (name != NULL)
type = ctf_lookup_by_rawname (fp, CTF_K_STRUCT, name);
if (type != 0 && ctf_type_kind (fp, type) == CTF_K_FORWARD)
dtd = ctf_dtd_lookup (fp, type);
else if ((type = ctf_add_generic (fp, flag, name, CTF_K_STRUCT,
- &dtd)) == CTF_ERR)
+ initial_vlen, &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
- dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_STRUCT, flag, 0);
-
- if (size > CTF_MAX_SIZE)
+ /* Forwards won't have any vlen yet. */
+ if (dtd->dtd_vlen_alloc == 0)
{
- 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);
+ if ((dtd->dtd_vlen = calloc (1, initial_vlen)) == NULL)
+ return (ctf_set_errno (fp, ENOMEM));
+ dtd->dtd_vlen_alloc = initial_vlen;
}
- else
- dtd->dtd_data.ctt_size = (uint32_t) size;
+
+ dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_STRUCT, flag, 0);
+ 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);
return type;
}
ctf_id_t
-ctf_add_struct (ctf_file_t *fp, uint32_t flag, const char *name)
+ctf_add_struct (ctf_dict_t *fp, uint32_t flag, const char *name)
{
return (ctf_add_struct_sized (fp, flag, name, 0));
}
ctf_id_t
-ctf_add_union_sized (ctf_file_t *fp, uint32_t flag, const char *name,
+ctf_add_union_sized (ctf_dict_t *fp, uint32_t flag, const char *name,
size_t size)
{
ctf_dtdef_t *dtd;
ctf_id_t type = 0;
+ size_t initial_vlen = sizeof (ctf_lmember_t) * INITIAL_VLEN;
- /* Promote forwards to unions. */
+ /* Promote root-visible forwards to unions. */
if (name != NULL)
type = ctf_lookup_by_rawname (fp, CTF_K_UNION, name);
if (type != 0 && ctf_type_kind (fp, type) == CTF_K_FORWARD)
dtd = ctf_dtd_lookup (fp, type);
else if ((type = ctf_add_generic (fp, flag, name, CTF_K_UNION,
- &dtd)) == CTF_ERR)
+ initial_vlen, &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us */
- dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_UNION, flag, 0);
-
- if (size > CTF_MAX_SIZE)
+ /* Forwards won't have any vlen yet. */
+ if (dtd->dtd_vlen_alloc == 0)
{
- 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);
+ if ((dtd->dtd_vlen = calloc (1, initial_vlen)) == NULL)
+ return (ctf_set_errno (fp, ENOMEM));
+ dtd->dtd_vlen_alloc = initial_vlen;
}
- else
- dtd->dtd_data.ctt_size = (uint32_t) size;
+
+ dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_UNION, flag, 0);
+ 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);
return type;
}
ctf_id_t
-ctf_add_union (ctf_file_t *fp, uint32_t flag, const char *name)
+ctf_add_union (ctf_dict_t *fp, uint32_t flag, const char *name)
{
return (ctf_add_union_sized (fp, flag, name, 0));
}
ctf_id_t
-ctf_add_enum (ctf_file_t *fp, uint32_t flag, const char *name)
+ctf_add_enum (ctf_dict_t *fp, uint32_t flag, const char *name)
{
ctf_dtdef_t *dtd;
ctf_id_t type = 0;
+ size_t initial_vlen = sizeof (ctf_enum_t) * INITIAL_VLEN;
- /* Promote forwards to enums. */
+ /* Promote root-visible forwards to enums. */
if (name != NULL)
type = ctf_lookup_by_rawname (fp, CTF_K_ENUM, name);
if (type != 0 && ctf_type_kind (fp, type) == CTF_K_FORWARD)
dtd = ctf_dtd_lookup (fp, type);
else if ((type = ctf_add_generic (fp, flag, name, CTF_K_ENUM,
- &dtd)) == CTF_ERR)
+ initial_vlen, &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
+ /* Forwards won't have any vlen yet. */
+ if (dtd->dtd_vlen_alloc == 0)
+ {
+ if ((dtd->dtd_vlen = calloc (1, initial_vlen)) == NULL)
+ return (ctf_set_errno (fp, ENOMEM));
+ dtd->dtd_vlen_alloc = initial_vlen;
+ }
+
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_ENUM, flag, 0);
dtd->dtd_data.ctt_size = fp->ctf_dmodel->ctd_int;
}
ctf_id_t
-ctf_add_enum_encoded (ctf_file_t *fp, uint32_t flag, const char *name,
+ctf_add_enum_encoded (ctf_dict_t *fp, uint32_t flag, const char *name,
const ctf_encoding_t *ep)
{
ctf_id_t type = 0;
}
ctf_id_t
-ctf_add_forward (ctf_file_t *fp, uint32_t flag, const char *name,
+ctf_add_forward (ctf_dict_t *fp, uint32_t flag, const char *name,
uint32_t kind)
{
ctf_dtdef_t *dtd;
ctf_id_t type = 0;
- if (kind != CTF_K_STRUCT && kind != CTF_K_UNION && kind != CTF_K_ENUM)
+ if (!ctf_forwardable_kind (kind))
return (ctf_set_errno (fp, ECTF_NOTSUE));
+ if (name == NULL || name[0] == '\0')
+ return (ctf_set_errno (fp, ECTF_NONAME));
+
/* 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)
- type = ctf_lookup_by_rawname (fp, kind, name);
+ type = ctf_lookup_by_rawname (fp, kind, name);
- if ((type = ctf_add_generic (fp, flag, name, CTF_K_FORWARD,&dtd)) == CTF_ERR)
+ if (type)
+ return type;
+
+ if ((type = ctf_add_generic (fp, flag, name, kind, 0, &dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_FORWARD, flag, 0);
}
ctf_id_t
-ctf_add_typedef (ctf_file_t *fp, uint32_t flag, const char *name,
+ctf_add_unknown (ctf_dict_t *fp, uint32_t flag, const char *name)
+{
+ ctf_dtdef_t *dtd;
+ ctf_id_t type = 0;
+
+ /* If a type is already defined with this name, error (if not CTF_K_UNKNOWN)
+ or just return it. */
+
+ if (name != NULL && name[0] != '\0' && flag == CTF_ADD_ROOT
+ && (type = ctf_lookup_by_rawname (fp, CTF_K_UNKNOWN, name)))
+ {
+ if (ctf_type_kind (fp, type) == CTF_K_UNKNOWN)
+ return type;
+ else
+ {
+ ctf_err_warn (fp, 1, ECTF_CONFLICT,
+ _("ctf_add_unknown: cannot add unknown type "
+ "named %s: type of this name already defined"),
+ name ? name : _("(unnamed type)"));
+ return (ctf_set_errno (fp, ECTF_CONFLICT));
+ }
+ }
+
+ if ((type = ctf_add_generic (fp, flag, name, CTF_K_UNKNOWN, 0, &dtd)) == CTF_ERR)
+ return CTF_ERR; /* errno is set for us. */
+
+ dtd->dtd_data.ctt_info = CTF_TYPE_INFO (CTF_K_UNKNOWN, flag, 0);
+ dtd->dtd_data.ctt_type = 0;
+
+ return type;
+}
+
+ctf_id_t
+ctf_add_typedef (ctf_dict_t *fp, uint32_t flag, const char *name,
ctf_id_t ref)
{
ctf_dtdef_t *dtd;
ctf_id_t type;
- ctf_file_t *tmp = fp;
+ ctf_dict_t *tmp = fp;
if (ref == CTF_ERR || ref > CTF_MAX_TYPE)
return (ctf_set_errno (fp, EINVAL));
- if (ctf_lookup_by_id (&tmp, ref) == NULL)
+ if (name == NULL || name[0] == '\0')
+ return (ctf_set_errno (fp, ECTF_NONAME));
+
+ if (ref != 0 && ctf_lookup_by_id (&tmp, ref) == NULL)
return CTF_ERR; /* errno is set for us. */
- if ((type = ctf_add_generic (fp, flag, name, CTF_K_TYPEDEF,
+ if ((type = ctf_add_generic (fp, flag, name, CTF_K_TYPEDEF, 0,
&dtd)) == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
}
ctf_id_t
-ctf_add_volatile (ctf_file_t *fp, uint32_t flag, ctf_id_t ref)
+ctf_add_volatile (ctf_dict_t *fp, uint32_t flag, ctf_id_t ref)
{
return (ctf_add_reftype (fp, flag, ref, CTF_K_VOLATILE));
}
ctf_id_t
-ctf_add_const (ctf_file_t *fp, uint32_t flag, ctf_id_t ref)
+ctf_add_const (ctf_dict_t *fp, uint32_t flag, ctf_id_t ref)
{
return (ctf_add_reftype (fp, flag, ref, CTF_K_CONST));
}
ctf_id_t
-ctf_add_restrict (ctf_file_t *fp, uint32_t flag, ctf_id_t ref)
+ctf_add_restrict (ctf_dict_t *fp, uint32_t flag, ctf_id_t ref)
{
return (ctf_add_reftype (fp, flag, ref, CTF_K_RESTRICT));
}
int
-ctf_add_enumerator (ctf_file_t *fp, ctf_id_t enid, const char *name,
+ctf_add_enumerator (ctf_dict_t *fp, ctf_id_t enid, const char *name,
int value)
{
ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, enid);
- ctf_dmdef_t *dmd;
+ unsigned char *old_vlen;
+ ctf_enum_t *en;
+ size_t i;
uint32_t kind, vlen, root;
- char *s;
if (name == NULL)
return (ctf_set_errno (fp, EINVAL));
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))
+ old_vlen = dtd->dtd_vlen;
+ if (ctf_grow_vlen (fp, dtd, sizeof (ctf_enum_t) * (vlen + 1)) < 0)
+ return -1; /* errno is set for us. */
+ en = (ctf_enum_t *) dtd->dtd_vlen;
+
+ if (dtd->dtd_vlen != old_vlen)
{
- if (strcmp (dmd->dmd_name, name) == 0)
- return (ctf_set_errno (fp, ECTF_DUPLICATE));
- }
+ ptrdiff_t move = (signed char *) dtd->dtd_vlen - (signed char *) old_vlen;
- if ((dmd = malloc (sizeof (ctf_dmdef_t))) == NULL)
- return (ctf_set_errno (fp, EAGAIN));
+ /* Remove pending refs in the old vlen region and reapply them. */
- if ((s = strdup (name)) == NULL)
- {
- free (dmd);
- return (ctf_set_errno (fp, EAGAIN));
+ for (i = 0; i < vlen; i++)
+ ctf_str_move_pending (fp, &en[i].cte_name, move);
}
- dmd->dmd_name = s;
- dmd->dmd_type = CTF_ERR;
- dmd->dmd_offset = 0;
- dmd->dmd_value = value;
+ for (i = 0; i < vlen; i++)
+ if (strcmp (ctf_strptr (fp, en[i].cte_name), name) == 0)
+ return (ctf_set_errno (fp, ECTF_DUPLICATE));
+
+ en[i].cte_name = ctf_str_add_pending (fp, name, &en[i].cte_name);
+ en[i].cte_value = value;
+
+ if (en[i].cte_name == 0 && name != NULL && name[0] != '\0')
+ return -1; /* errno is set for us. */
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, root, vlen + 1);
- ctf_list_append (&dtd->dtd_u.dtu_members, dmd);
fp->ctf_flags |= LCTF_DIRTY;
}
int
-ctf_add_member_offset (ctf_file_t *fp, ctf_id_t souid, const char *name,
+ctf_add_member_offset (ctf_dict_t *fp, ctf_id_t souid, const char *name,
ctf_id_t type, unsigned long bit_offset)
{
ctf_dtdef_t *dtd = ctf_dtd_lookup (fp, souid);
- ctf_dmdef_t *dmd;
ssize_t msize, malign, ssize;
uint32_t kind, vlen, root;
- char *s = NULL;
+ size_t i;
+ int is_incomplete = 0;
+ unsigned char *old_vlen;
+ ctf_lmember_t *memb;
if (!(fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno (fp, ECTF_RDONLY));
if (dtd == NULL)
return (ctf_set_errno (fp, ECTF_BADID));
+ if (name != NULL && name[0] == '\0')
+ name = NULL;
+
kind = LCTF_INFO_KIND (fp, dtd->dtd_data.ctt_info);
root = LCTF_INFO_ISROOT (fp, dtd->dtd_data.ctt_info);
vlen = LCTF_INFO_VLEN (fp, dtd->dtd_data.ctt_info);
if (vlen == CTF_MAX_VLEN)
return (ctf_set_errno (fp, ECTF_DTFULL));
+ old_vlen = dtd->dtd_vlen;
+ if (ctf_grow_vlen (fp, dtd, sizeof (ctf_lmember_t) * (vlen + 1)) < 0)
+ return -1; /* errno is set for us. */
+ memb = (ctf_lmember_t *) dtd->dtd_vlen;
+
+ if (dtd->dtd_vlen != old_vlen)
+ {
+ ptrdiff_t move = (signed char *) dtd->dtd_vlen - (signed char *) old_vlen;
+
+ /* Remove pending refs in the old vlen region and reapply them. */
+
+ for (i = 0; i < vlen; i++)
+ ctf_str_move_pending (fp, &memb[i].ctlm_name, move);
+ }
+
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_DUPLICATE));
- }
+ for (i = 0; i < vlen; i++)
+ if (strcmp (ctf_strptr (fp, memb[i].ctlm_name), name) == 0)
+ return (ctf_set_errno (fp, ECTF_DUPLICATE));
}
if ((msize = ctf_type_size (fp, type)) < 0 ||
(malign = ctf_type_align (fp, type)) < 0)
- return -1; /* errno is set for us. */
-
- if ((dmd = malloc (sizeof (ctf_dmdef_t))) == NULL)
- return (ctf_set_errno (fp, EAGAIN));
-
- if (name != NULL && (s = strdup (name)) == NULL)
{
- free (dmd);
- return (ctf_set_errno (fp, EAGAIN));
+ /* The unimplemented type, and any type that resolves to it, has no size
+ and no alignment: it can correspond to any number of compiler-inserted
+ types. We allow incomplete types through since they are routinely
+ added to the ends of structures, and can even be added elsewhere in
+ structures by the deduplicator. They are assumed to be zero-size with
+ no alignment: this is often wrong, but problems can be avoided in this
+ case by explicitly specifying the size of the structure via the _sized
+ functions. The deduplicator always does this. */
+
+ msize = 0;
+ malign = 0;
+ if (ctf_errno (fp) == ECTF_NONREPRESENTABLE)
+ ctf_set_errno (fp, 0);
+ else if (ctf_errno (fp) == ECTF_INCOMPLETE)
+ is_incomplete = 1;
+ else
+ return -1; /* errno is set for us. */
}
- dmd->dmd_name = s;
- dmd->dmd_type = type;
- dmd->dmd_value = -1;
+ memb[vlen].ctlm_name = ctf_str_add_pending (fp, name, &memb[vlen].ctlm_name);
+ memb[vlen].ctlm_type = type;
+ if (memb[vlen].ctlm_name == 0 && name != NULL && name[0] != '\0')
+ return -1; /* errno is set for us. */
if (kind == CTF_K_STRUCT && vlen != 0)
{
{
/* Natural alignment. */
- 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_id_t ltype = ctf_type_resolve (fp, memb[vlen - 1].ctlm_type);
+ size_t off = CTF_LMEM_OFFSET(&memb[vlen - 1]);
ctf_encoding_t linfo;
ssize_t lsize;
+ /* Propagate any error from ctf_type_resolve. If the last member was
+ of unimplemented type, this may be -ECTF_NONREPRESENTABLE: we
+ cannot insert right after such a member without explicit offset
+ specification, because its alignment and size is not known. */
+ if (ltype == CTF_ERR)
+ return -1; /* errno is set for us. */
+
+ if (is_incomplete)
+ {
+ ctf_err_warn (fp, 1, ECTF_INCOMPLETE,
+ _("ctf_add_member_offset: cannot add member %s of "
+ "incomplete type %lx to struct %lx without "
+ "specifying explicit offset\n"),
+ name ? name : _("(unnamed member)"), type, souid);
+ return (ctf_set_errno (fp, ECTF_INCOMPLETE));
+ }
+
if (ctf_type_encoding (fp, ltype, &linfo) == 0)
off += linfo.cte_bits;
else if ((lsize = ctf_type_size (fp, ltype)) > 0)
off += lsize * CHAR_BIT;
+ else if (lsize == -1 && ctf_errno (fp) == ECTF_INCOMPLETE)
+ {
+ const char *lname = ctf_strraw (fp, memb[vlen - 1].ctlm_name);
+
+ ctf_err_warn (fp, 1, ECTF_INCOMPLETE,
+ _("ctf_add_member_offset: cannot add member %s of "
+ "type %lx to struct %lx without specifying "
+ "explicit offset after member %s of type %lx, "
+ "which is an incomplete type\n"),
+ name ? name : _("(unnamed member)"), type, souid,
+ lname ? lname : _("(unnamed member)"), ltype);
+ return -1; /* errno is set for us. */
+ }
/* Round up the offset of the end of the last member to
the next byte boundary, convert 'off' to bytes, and
off = roundup (off, CHAR_BIT) / CHAR_BIT;
off = roundup (off, MAX (malign, 1));
- dmd->dmd_offset = off * CHAR_BIT;
+ memb[vlen].ctlm_offsethi = CTF_OFFSET_TO_LMEMHI (off * CHAR_BIT);
+ memb[vlen].ctlm_offsetlo = CTF_OFFSET_TO_LMEMLO (off * CHAR_BIT);
ssize = off + msize;
}
else
{
/* Specified offset in bits. */
- dmd->dmd_offset = bit_offset;
+ memb[vlen].ctlm_offsethi = CTF_OFFSET_TO_LMEMHI (bit_offset);
+ memb[vlen].ctlm_offsetlo = CTF_OFFSET_TO_LMEMLO (bit_offset);
ssize = ctf_get_ctt_size (fp, &dtd->dtd_data, NULL, NULL);
ssize = MAX (ssize, ((signed) bit_offset / CHAR_BIT) + msize);
}
}
else
{
- dmd->dmd_offset = 0;
+ memb[vlen].ctlm_offsethi = 0;
+ memb[vlen].ctlm_offsetlo = 0;
ssize = ctf_get_ctt_size (fp, &dtd->dtd_data, NULL, NULL);
ssize = MAX (ssize, msize);
}
- if ((size_t) 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 = (uint32_t) ssize;
-
+ 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);
dtd->dtd_data.ctt_info = CTF_TYPE_INFO (kind, root, vlen + 1);
- ctf_list_append (&dtd->dtd_u.dtu_members, dmd);
fp->ctf_flags |= LCTF_DIRTY;
return 0;
}
int
-ctf_add_member_encoded (ctf_file_t *fp, ctf_id_t souid, const char *name,
+ctf_add_member_encoded (ctf_dict_t *fp, ctf_id_t souid, const char *name,
ctf_id_t type, unsigned long bit_offset,
const ctf_encoding_t encoding)
{
}
int
-ctf_add_member (ctf_file_t *fp, ctf_id_t souid, const char *name,
+ctf_add_member (ctf_dict_t *fp, ctf_id_t souid, const char *name,
ctf_id_t type)
{
return ctf_add_member_offset (fp, souid, name, type, (unsigned long) - 1);
}
int
-ctf_add_variable (ctf_file_t *fp, const char *name, ctf_id_t ref)
+ctf_add_variable (ctf_dict_t *fp, const char *name, ctf_id_t ref)
{
ctf_dvdef_t *dvd;
- ctf_file_t *tmp = fp;
+ ctf_dict_t *tmp = fp;
if (!(fp->ctf_flags & LCTF_RDWR))
return (ctf_set_errno (fp, ECTF_RDONLY));
return 0;
}
+int
+ctf_add_funcobjt_sym (ctf_dict_t *fp, int is_function, const char *name, ctf_id_t id)
+{
+ ctf_dict_t *tmp = fp;
+ char *dupname;
+ ctf_dynhash_t *h = is_function ? fp->ctf_funchash : fp->ctf_objthash;
+
+ if (!(fp->ctf_flags & LCTF_RDWR))
+ return (ctf_set_errno (fp, ECTF_RDONLY));
+
+ if (ctf_dynhash_lookup (fp->ctf_objthash, name) != NULL ||
+ ctf_dynhash_lookup (fp->ctf_funchash, name) != NULL)
+ return (ctf_set_errno (fp, ECTF_DUPLICATE));
+
+ if (ctf_lookup_by_id (&tmp, id) == NULL)
+ return -1; /* errno is set for us. */
+
+ if (is_function && ctf_type_kind (fp, id) != CTF_K_FUNCTION)
+ return (ctf_set_errno (fp, ECTF_NOTFUNC));
+
+ if ((dupname = strdup (name)) == NULL)
+ return (ctf_set_errno (fp, ENOMEM));
+
+ if (ctf_dynhash_insert (h, dupname, (void *) (uintptr_t) id) < 0)
+ {
+ free (dupname);
+ return (ctf_set_errno (fp, ENOMEM));
+ }
+ return 0;
+}
+
+int
+ctf_add_objt_sym (ctf_dict_t *fp, const char *name, ctf_id_t id)
+{
+ return (ctf_add_funcobjt_sym (fp, 0, name, id));
+}
+
+int
+ctf_add_func_sym (ctf_dict_t *fp, const char *name, ctf_id_t id)
+{
+ return (ctf_add_funcobjt_sym (fp, 1, name, id));
+}
+
+typedef struct ctf_bundle
+{
+ ctf_dict_t *ctb_dict; /* CTF dict handle. */
+ ctf_id_t ctb_type; /* CTF type identifier. */
+ ctf_dtdef_t *ctb_dtd; /* CTF dynamic type definition (if any). */
+} ctf_bundle_t;
+
static int
enumcmp (const char *name, int value, void *arg)
{
ctf_bundle_t *ctb = arg;
int bvalue;
- if (ctf_enum_value (ctb->ctb_file, ctb->ctb_type, name, &bvalue) < 0)
+ if (ctf_enum_value (ctb->ctb_dict, ctb->ctb_type, name, &bvalue) < 0)
{
- ctf_dprintf ("Conflict due to member %s iteration error: %s.\n", name,
- ctf_errmsg (ctf_errno (ctb->ctb_file)));
+ ctf_err_warn (ctb->ctb_dict, 0, 0,
+ _("conflict due to enum %s iteration error"), name);
return 1;
}
if (value != bvalue)
{
- ctf_dprintf ("Conflict due to value change: %i versus %i\n",
- value, bvalue);
+ ctf_err_warn (ctb->ctb_dict, 1, ECTF_CONFLICT,
+ _("conflict due to enum value change: %i versus %i"),
+ value, bvalue);
return 1;
}
return 0;
{
ctf_bundle_t *ctb = arg;
- return (ctf_add_enumerator (ctb->ctb_file, ctb->ctb_type,
+ return (ctf_add_enumerator (ctb->ctb_dict, ctb->ctb_type,
name, value) < 0);
}
ctf_bundle_t *ctb = arg;
ctf_membinfo_t ctm;
- if (ctf_member_info (ctb->ctb_file, ctb->ctb_type, name, &ctm) < 0)
+ /* Don't check nameless members (e.g. anonymous structs/unions) against each
+ other. */
+ if (name[0] == 0)
+ return 0;
+
+ if (ctf_member_info (ctb->ctb_dict, ctb->ctb_type, name, &ctm) < 0)
{
- ctf_dprintf ("Conflict due to member %s iteration error: %s.\n", name,
- ctf_errmsg (ctf_errno (ctb->ctb_file)));
+ ctf_err_warn (ctb->ctb_dict, 0, 0,
+ _("conflict due to struct member %s iteration error"),
+ name);
return 1;
}
if (ctm.ctm_offset != offset)
{
- ctf_dprintf ("Conflict due to member %s offset change: "
- "%lx versus %lx\n", name, ctm.ctm_offset, offset);
+ ctf_err_warn (ctb->ctb_dict, 1, ECTF_CONFLICT,
+ _("conflict due to struct member %s offset change: "
+ "%lx versus %lx"),
+ name, ctm.ctm_offset, offset);
return 1;
}
return 0;
}
-static int
-membadd (const char *name, ctf_id_t type, unsigned long offset, void *arg)
+/* Record the correspondence between a source and ctf_add_type()-added
+ destination type: both types are translated into parent type IDs if need be,
+ so they relate to the actual dictionary they are in. Outside controlled
+ circumstances (like linking) it is probably not useful to do more than
+ compare these pointers, since there is nothing stopping the user closing the
+ source dict whenever they want to.
+
+ Our OOM handling here is just to not do anything, because this is called deep
+ enough in the call stack that doing anything useful is painfully difficult:
+ the worst consequence if we do OOM is a bit of type duplication anyway. */
+
+static void
+ctf_add_type_mapping (ctf_dict_t *src_fp, ctf_id_t src_type,
+ ctf_dict_t *dst_fp, ctf_id_t dst_type)
{
- ctf_bundle_t *ctb = arg;
- ctf_dmdef_t *dmd;
- char *s = NULL;
+ if (LCTF_TYPE_ISPARENT (src_fp, src_type) && src_fp->ctf_parent)
+ src_fp = src_fp->ctf_parent;
+
+ src_type = LCTF_TYPE_TO_INDEX(src_fp, src_type);
- if ((dmd = malloc (sizeof (ctf_dmdef_t))) == NULL)
- return (ctf_set_errno (ctb->ctb_file, EAGAIN));
+ if (LCTF_TYPE_ISPARENT (dst_fp, dst_type) && dst_fp->ctf_parent)
+ dst_fp = dst_fp->ctf_parent;
- if (name != NULL && (s = strdup (name)) == NULL)
+ dst_type = LCTF_TYPE_TO_INDEX(dst_fp, dst_type);
+
+ if (dst_fp->ctf_link_type_mapping == NULL)
{
- free (dmd);
- return (ctf_set_errno (ctb->ctb_file, EAGAIN));
+ ctf_hash_fun f = ctf_hash_type_key;
+ ctf_hash_eq_fun e = ctf_hash_eq_type_key;
+
+ if ((dst_fp->ctf_link_type_mapping = ctf_dynhash_create (f, e, free,
+ NULL)) == NULL)
+ return;
}
- /* For now, dmd_type is copied as the src_fp's type; it is reset to an
- equivalent dst_fp type by a final loop in ctf_add_type(), below. */
- dmd->dmd_name = s;
- dmd->dmd_type = type;
- dmd->dmd_offset = offset;
- dmd->dmd_value = -1;
+ ctf_link_type_key_t *key;
+ key = calloc (1, sizeof (struct ctf_link_type_key));
+ if (!key)
+ return;
- ctf_list_append (&ctb->ctb_dtd->dtd_u.dtu_members, dmd);
+ key->cltk_fp = src_fp;
+ key->cltk_idx = src_type;
- ctb->ctb_file->ctf_flags |= LCTF_DIRTY;
- return 0;
+ /* No OOM checking needed, because if this doesn't work the worst we'll do is
+ add a few more duplicate types (which will probably run out of memory
+ anyway). */
+ ctf_dynhash_insert (dst_fp->ctf_link_type_mapping, key,
+ (void *) (uintptr_t) dst_type);
+}
+
+/* Look up a type mapping: return 0 if none. The DST_FP is modified to point to
+ the parent if need be. The ID returned is from the dst_fp's perspective. */
+static ctf_id_t
+ctf_type_mapping (ctf_dict_t *src_fp, ctf_id_t src_type, ctf_dict_t **dst_fp)
+{
+ ctf_link_type_key_t key;
+ ctf_dict_t *target_fp = *dst_fp;
+ ctf_id_t dst_type = 0;
+
+ if (LCTF_TYPE_ISPARENT (src_fp, src_type) && src_fp->ctf_parent)
+ src_fp = src_fp->ctf_parent;
+
+ src_type = LCTF_TYPE_TO_INDEX(src_fp, src_type);
+ key.cltk_fp = src_fp;
+ key.cltk_idx = src_type;
+
+ if (target_fp->ctf_link_type_mapping)
+ dst_type = (uintptr_t) ctf_dynhash_lookup (target_fp->ctf_link_type_mapping,
+ &key);
+
+ if (dst_type != 0)
+ {
+ dst_type = LCTF_INDEX_TO_TYPE (target_fp, dst_type,
+ target_fp->ctf_parent != NULL);
+ *dst_fp = target_fp;
+ return dst_type;
+ }
+
+ if (target_fp->ctf_parent)
+ target_fp = target_fp->ctf_parent;
+ else
+ return 0;
+
+ if (target_fp->ctf_link_type_mapping)
+ dst_type = (uintptr_t) ctf_dynhash_lookup (target_fp->ctf_link_type_mapping,
+ &key);
+
+ if (dst_type)
+ dst_type = LCTF_INDEX_TO_TYPE (target_fp, dst_type,
+ target_fp->ctf_parent != NULL);
+
+ *dst_fp = target_fp;
+ return dst_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
+/* The ctf_add_type routine is used to copy a type from a source CTF dictionary
+ to a dynamic destination dictionary. 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. */
+ destination dict already contains a named type which has the same attributes,
+ then we succeed and return this type but no changes occur. */
static ctf_id_t
-ctf_add_type_internal (ctf_file_t *dst_fp, ctf_file_t *src_fp, ctf_id_t src_type,
- ctf_file_t *proc_tracking_fp)
+ctf_add_type_internal (ctf_dict_t *dst_fp, ctf_dict_t *src_fp, ctf_id_t src_type,
+ ctf_dict_t *proc_tracking_fp)
{
ctf_id_t dst_type = CTF_ERR;
uint32_t dst_kind = CTF_K_UNKNOWN;
- ctf_file_t *tmp_fp = dst_fp;
+ ctf_dict_t *tmp_fp = dst_fp;
ctf_id_t tmp;
const char *name;
(void *) (uintptr_t) src_type))
return tmp;
- /* If this type has already been added from this container, and is the same
- kind and (if a struct or union) has the same number of members, hand it
- straight back. */
+ /* If this type has already been added from this dictionary, and is the
+ same kind and (if a struct or union) has the same number of members,
+ hand it straight back. */
- if ((ctf_type_kind_unsliced (tmp_fp, tmp) == (int) kind)
- && (kind == CTF_K_STRUCT || kind == CTF_K_UNION
- || kind == CTF_K_ENUM))
+ if (ctf_type_kind_unsliced (tmp_fp, tmp) == (int) kind)
{
- if ((dst_tp = ctf_lookup_by_id (&tmp_fp, dst_type)) != NULL)
- if (vlen == LCTF_INFO_VLEN (tmp_fp, dst_tp->ctt_info))
- return tmp;
+ if (kind == CTF_K_STRUCT || kind == CTF_K_UNION
+ || kind == CTF_K_ENUM)
+ {
+ if ((dst_tp = ctf_lookup_by_id (&tmp_fp, dst_type)) != NULL)
+ if (vlen == LCTF_INFO_VLEN (tmp_fp, dst_tp->ctt_info))
+ return tmp;
+ }
+ else
+ return tmp;
}
}
if (kind == CTF_K_FORWARD)
forward_kind = src_tp->ctt_type;
- /* 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 the source type has a name and is a root type (visible at the top-level
+ scope), lookup the name in the destination dictionary and verify that it is
+ of the same kind before we do anything else. */
if ((flag & CTF_ADD_ROOT) && name[0] != '\0'
&& (tmp = ctf_lookup_by_rawname (dst_fp, forward_kind, name)) != 0)
|| (kind != CTF_K_ENUM && kind != CTF_K_STRUCT
&& kind != CTF_K_UNION))
{
- ctf_dprintf ("Conflict for type %s: kinds differ, new: %i; "
- "old (ID %lx): %i\n", name, kind, dst_type, dst_kind);
+ ctf_err_warn (dst_fp, 1, ECTF_CONFLICT,
+ _("ctf_add_type: conflict for type %s: "
+ "kinds differ, new: %i; old (ID %lx): %i"),
+ name, kind, dst_type, dst_kind);
return (ctf_set_errno (dst_fp, ECTF_CONFLICT));
}
}
if (dst_type != CTF_ERR)
{
- ctf_file_t *fp = dst_fp;
+ ctf_dict_t *fp = dst_fp;
if ((dst_tp = ctf_lookup_by_id (&fp, dst_type)) == NULL)
return CTF_ERR;
}
}
- src.ctb_file = src_fp;
+ src.ctb_dict = src_fp;
src.ctb_type = src_type;
src.ctb_dtd = NULL;
- dst.ctb_file = dst_fp;
+ dst.ctb_dict = dst_fp;
dst.ctb_type = dst_type;
dst.ctb_dtd = NULL;
if (memcmp (&src_ar, &dst_ar, sizeof (ctf_arinfo_t)))
{
- ctf_dprintf ("Conflict for type %s against ID %lx: "
- "array info differs, old %lx/%lx/%x; "
- "new: %lx/%lx/%x\n", name, dst_type,
- src_ar.ctr_contents, src_ar.ctr_index,
- src_ar.ctr_nelems, dst_ar.ctr_contents,
- dst_ar.ctr_index, dst_ar.ctr_nelems);
+ ctf_err_warn (dst_fp, 1, ECTF_CONFLICT,
+ _("conflict for type %s against ID %lx: array info "
+ "differs, old %lx/%lx/%x; new: %lx/%lx/%x"),
+ name, dst_type, src_ar.ctr_contents,
+ src_ar.ctr_index, src_ar.ctr_nelems,
+ dst_ar.ctr_contents, dst_ar.ctr_index,
+ dst_ar.ctr_nelems);
return (ctf_set_errno (dst_fp, ECTF_CONFLICT));
}
}
case CTF_K_STRUCT:
case CTF_K_UNION:
{
- ctf_dmdef_t *dmd;
- int errs = 0;
- size_t size;
- ssize_t ssize;
- ctf_dtdef_t *dtd;
+ ctf_next_t *i = NULL;
+ ssize_t offset;
+ const char *membname;
+ ctf_id_t src_membtype;
/* Technically to match a struct or union we need to check both
ways (src members vs. dst, dst members vs. src) but we make
if (ctf_type_size (src_fp, src_type) !=
ctf_type_size (dst_fp, dst_type))
{
- ctf_dprintf ("Conflict for type %s against ID %lx: "
- "union size differs, old %li, new %li\n",
- name, dst_type,
- (long) ctf_type_size (src_fp, src_type),
- (long) ctf_type_size (dst_fp, dst_type));
+ ctf_err_warn (dst_fp, 1, ECTF_CONFLICT,
+ _("conflict for type %s against ID %lx: union "
+ "size differs, old %li, new %li"), name,
+ dst_type, (long) ctf_type_size (src_fp, src_type),
+ (long) 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))
{
- ctf_dprintf ("Conflict for type %s against ID %lx: "
- "members differ, see above\n", name, dst_type);
+ ctf_err_warn (dst_fp, 1, ECTF_CONFLICT,
+ _("conflict for type %s against ID %lx: members "
+ "differ, see above"), name, dst_type);
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, kind, &dtd);
+ dst_type = ctf_add_struct_sized (dst_fp, flag, name,
+ ctf_type_size (src_fp, src_type));
if (dst_type == CTF_ERR)
return CTF_ERR; /* errno is set for us. */
- dst.ctb_type = dst_type;
- dst.ctb_dtd = dtd;
-
/* Pre-emptively add this struct to the type mapping so that
structures that refer to themselves work. */
ctf_add_type_mapping (src_fp, src_type, dst_fp, dst_type);
- if (ctf_member_iter (src_fp, src_type, membadd, &dst) != 0)
- errs++; /* Increment errs and fail at bottom of case. */
-
- if ((ssize = ctf_type_size (src_fp, src_type)) < 0)
- return CTF_ERR; /* errno is set for us. */
-
- size = (size_t) ssize;
- if (size > 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 = (uint32_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, unless they fail
- because they are marking a member of type not representable in this
- version of CTF, in which case we just want to silently omit them:
- no consumer can do anything with them anyway. */
- for (dmd = ctf_list_next (&dtd->dtd_u.dtu_members);
- dmd != NULL; dmd = ctf_list_next (dmd))
+ while ((offset = ctf_member_next (src_fp, src_type, &i, &membname,
+ &src_membtype, 0)) >= 0)
{
- ctf_file_t *dst = dst_fp;
- ctf_id_t memb_type;
+ ctf_dict_t *dst = dst_fp;
+ ctf_id_t dst_membtype = ctf_type_mapping (src_fp, src_membtype, &dst);
- memb_type = ctf_type_mapping (src_fp, dmd->dmd_type, &dst);
- if (memb_type == 0)
+ if (dst_membtype == 0)
{
- if ((dmd->dmd_type =
- ctf_add_type_internal (dst_fp, src_fp, dmd->dmd_type,
- proc_tracking_fp)) == CTF_ERR)
+ dst_membtype = ctf_add_type_internal (dst_fp, src_fp,
+ src_membtype,
+ proc_tracking_fp);
+ if (dst_membtype == CTF_ERR)
{
if (ctf_errno (dst_fp) != ECTF_NONREPRESENTABLE)
- errs++;
+ {
+ ctf_next_destroy (i);
+ break;
+ }
}
}
- else
- dmd->dmd_type = memb_type;
- }
- if (errs)
+ if (ctf_add_member_offset (dst_fp, dst_type, membname,
+ dst_membtype, offset) < 0)
+ {
+ ctf_next_destroy (i);
+ break;
+ }
+ }
+ if (ctf_errno (src_fp) != ECTF_NEXT_END)
return CTF_ERR; /* errno is set for us. */
break;
}
if (ctf_enum_iter (src_fp, src_type, enumcmp, &dst)
|| ctf_enum_iter (dst_fp, dst_type, enumcmp, &src))
{
- ctf_dprintf ("Conflict for enum %s against ID %lx: "
- "members differ, see above\n", name, dst_type);
+ ctf_err_warn (dst_fp, 1, ECTF_CONFLICT,
+ _("conflict for enum %s against ID %lx: members "
+ "differ, see above"), name, dst_type);
return (ctf_set_errno (dst_fp, ECTF_CONFLICT));
}
}
}
ctf_id_t
-ctf_add_type (ctf_file_t *dst_fp, ctf_file_t *src_fp, ctf_id_t src_type)
+ctf_add_type (ctf_dict_t *dst_fp, ctf_dict_t *src_fp, ctf_id_t src_type)
{
ctf_id_t id;
return id;
}
-
-/* Write the compressed CTF data stream to the specified gzFile descriptor. */
-int
-ctf_gzwrite (ctf_file_t *fp, gzFile fd)
-{
- const unsigned char *buf;
- ssize_t resid;
- ssize_t len;
-
- resid = sizeof (ctf_header_t);
- buf = (unsigned char *) fp->ctf_header;
- while (resid != 0)
- {
- if ((len = gzwrite (fd, buf, resid)) <= 0)
- return (ctf_set_errno (fp, errno));
- resid -= len;
- buf += len;
- }
-
- resid = fp->ctf_size;
- buf = fp->ctf_buf;
- while (resid != 0)
- {
- if ((len = gzwrite (fd, buf, resid)) <= 0)
- return (ctf_set_errno (fp, errno));
- resid -= len;
- buf += len;
- }
-
- return 0;
-}
-
-/* Compress the specified CTF data stream and write it to the specified file
- descriptor. */
-int
-ctf_compress_write (ctf_file_t *fp, int fd)
-{
- unsigned char *buf;
- unsigned char *bp;
- ctf_header_t h;
- ctf_header_t *hp = &h;
- ssize_t header_len = sizeof (ctf_header_t);
- ssize_t compress_len;
- ssize_t len;
- int rc;
- int err = 0;
-
- if (ctf_serialize (fp) < 0)
- return -1; /* errno is set for us. */
-
- memcpy (hp, fp->ctf_header, header_len);
- hp->cth_flags |= CTF_F_COMPRESS;
- compress_len = compressBound (fp->ctf_size);
-
- if ((buf = malloc (compress_len)) == NULL)
- return (ctf_set_errno (fp, ECTF_ZALLOC));
-
- if ((rc = compress (buf, (uLongf *) &compress_len,
- fp->ctf_buf, fp->ctf_size)) != Z_OK)
- {
- ctf_dprintf ("zlib deflate err: %s\n", zError (rc));
- err = ctf_set_errno (fp, ECTF_COMPRESS);
- goto ret;
- }
-
- while (header_len > 0)
- {
- if ((len = write (fd, hp, header_len)) < 0)
- {
- err = ctf_set_errno (fp, errno);
- goto ret;
- }
- header_len -= len;
- hp += len;
- }
-
- bp = buf;
- while (compress_len > 0)
- {
- if ((len = write (fd, bp, compress_len)) < 0)
- {
- err = ctf_set_errno (fp, errno);
- goto ret;
- }
- compress_len -= len;
- bp += len;
- }
-
-ret:
- free (buf);
- return err;
-}
-
-/* Optionally compress the specified CTF data stream and return it as a new
- dynamically-allocated string. */
-unsigned char *
-ctf_write_mem (ctf_file_t *fp, size_t *size, size_t threshold)
-{
- unsigned char *buf;
- unsigned char *bp;
- ctf_header_t *hp;
- ssize_t header_len = sizeof (ctf_header_t);
- ssize_t compress_len;
- int rc;
-
- if (ctf_serialize (fp) < 0)
- return NULL; /* errno is set for us. */
-
- compress_len = compressBound (fp->ctf_size);
- if (fp->ctf_size < threshold)
- compress_len = fp->ctf_size;
- if ((buf = malloc (compress_len
- + sizeof (struct ctf_header))) == NULL)
- {
- ctf_set_errno (fp, ENOMEM);
- return NULL;
- }
-
- hp = (ctf_header_t *) buf;
- memcpy (hp, fp->ctf_header, header_len);
- bp = buf + sizeof (struct ctf_header);
- *size = sizeof (struct ctf_header);
-
- if (fp->ctf_size < threshold)
- {
- hp->cth_flags &= ~CTF_F_COMPRESS;
- memcpy (bp, fp->ctf_buf, fp->ctf_size);
- *size += fp->ctf_size;
- }
- else
- {
- hp->cth_flags |= CTF_F_COMPRESS;
- if ((rc = compress (bp, (uLongf *) &compress_len,
- fp->ctf_buf, fp->ctf_size)) != Z_OK)
- {
- ctf_dprintf ("zlib deflate err: %s\n", zError (rc));
- ctf_set_errno (fp, ECTF_COMPRESS);
- free (buf);
- return NULL;
- }
- *size += compress_len;
- }
- return buf;
-}
-
-/* Write the uncompressed CTF data stream to the specified file descriptor. */
-int
-ctf_write (ctf_file_t *fp, int fd)
-{
- const unsigned char *buf;
- ssize_t resid;
- ssize_t len;
-
- if (ctf_serialize (fp) < 0)
- return -1; /* errno is set for us. */
-
- resid = sizeof (ctf_header_t);
- buf = (unsigned char *) fp->ctf_header;
- while (resid != 0)
- {
- if ((len = write (fd, buf, resid)) <= 0)
- return (ctf_set_errno (fp, errno));
- resid -= len;
- buf += len;
- }
-
- resid = fp->ctf_size;
- buf = fp->ctf_buf;
- while (resid != 0)
- {
- if ((len = write (fd, buf, resid)) <= 0)
- return (ctf_set_errno (fp, errno));
- resid -= len;
- buf += len;
- }
-
- return 0;
-}