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libctf: generalize the ref system

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Despite the removal of the separate movable ref list, the ref system as
a whole is more than complex enough to be worth generalizing now that
we are adding different kinds of ref.

Refs now are lists of uint32_t * which can be updated through the
pointer for all entries in the list and moved to new sites for all
pointers in a given range: they are no longer references to string
offsets in particular and can be references to other uint32_t-sized
things instead (note that ctf_id_t is a typedef to a uint32_t).

ctf-string.c has been adjusted accordingly (the adjustments are tiny,
more or less just turning a bunch of references to atom into
&atom->csa_refs).
This commit is contained in:
Nick Alcock
2025-01-13 15:04:17 +00:00
parent 69d4f6d74c
commit 9835747b21
5 changed files with 158 additions and 130 deletions
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4
libctf/ctf-create.c
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@@ -1118,7 +1118,7 @@ ctf_add_enumerator (ctf_dict_t *fp, ctf_id_t enid, const char *name,
/* Remove refs in the old vlen region and reapply them. */
ctf_str_move_refs (fp, old_vlen, sizeof (ctf_enum_t) * vlen, dtd->dtd_vlen);
ctf_move_refs (fp, old_vlen, sizeof (ctf_enum_t) * vlen, dtd->dtd_vlen);
/* Check for constant duplication within any given enum: only needed for
non-root-visible types, since the duplicate detection above does the job
@@ -1209,7 +1209,7 @@ ctf_add_member_offset (ctf_dict_t *fp, ctf_id_t souid, const char *name,
/* Remove refs in the old vlen region and reapply them. */
ctf_str_move_refs (fp, old_vlen, sizeof (ctf_lmember_t) * vlen, dtd->dtd_vlen);
ctf_move_refs (fp, old_vlen, sizeof (ctf_lmember_t) * vlen, dtd->dtd_vlen);
if (name != NULL)
{