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libctf: prohibit nameless ints, floats, typedefs and forwards

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Now that "anonymous typedef nodes" have been extirpated, we can mandate
that things that have names in C must have names in CTF too.  (Unlike
the no-forwards embarrassment, the deduplicator does nothing special
with names: types that have names in C will have the same name in CTF.
So we can assume that the CTF rules and the C rules are the same.)

include/ChangeLog
2021-01-27  Nick Alcock  <nick.alcock@oracle.com>

	* ctf-api.h (ECTF_NONAME): New.
	(ECTF_NERR): Adjust.

libctf/ChangeLog
2021-01-27  Nick Alcock  <nick.alcock@oracle.com>

	* ctf-create.c (ctf_add_encoded): Add check for non-empty name.
	(ctf_add_forward): Likewise.
	(ctf_add_typedef): Likewise.
This commit is contained in:
Nick Alcock 2021-01-27 19:55:45 +00:00
parent 78f28b89e8
commit caa170493e
4 changed files with 24 additions and 4 deletions
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5
include/ctf-api.h
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@ -240,7 +240,8 @@ typedef struct ctf_snapshot_id
_CTF_ITEM (ECTF_NEXT_WRONGFP, "Iteration entity changed in mid-iterate.") \
_CTF_ITEM (ECTF_FLAGS, "CTF header contains flags unknown to libctf.") \
_CTF_ITEM (ECTF_NEEDSBFD, "This feature needs a libctf with BFD support.") \
_CTF_ITEM (ECTF_INCOMPLETE, "Type is not a complete type.")
_CTF_ITEM (ECTF_INCOMPLETE, "Type is not a complete type.") \
_CTF_ITEM (ECTF_NONAME, "Type name must not be empty.")
#define ECTF_BASE 1000 /* Base value for libctf errnos. */
@ -253,7 +254,7 @@ _CTF_ERRORS
#undef _CTF_FIRST
};
#define ECTF_NERR (ECTF_INCOMPLETE - ECTF_BASE + 1) /* Count of CTF errors. */
#define ECTF_NERR (ECTF_NONAME - ECTF_BASE + 1) /* Count of CTF errors. */
/* The CTF data model is inferred to be the caller's data model or the data
model of the given object, unless ctf_setmodel is explicitly called. */