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libctf: get the offsets of fields of unnamed structs/unions right

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We were failing to add the offsets of the containing struct/union
in this case, leading to all offsets being relative to the unnamed
struct/union itself.

libctf/
	PR libctf/30264
	* ctf-types.c (ctf_member_info): Add the offset of the unnamed
	member of the current struct as necessary.
	* testsuite/libctf-lookup/unnamed-field-info*: New test.
This commit is contained in:
Nick Alcock
2023-03-23 00:15:17 +00:00
parent 04d91c807e
commit 3672e32622
4 changed files with 121 additions and 1 deletions
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5
libctf/ctf-types.c
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@ -1417,7 +1417,10 @@ ctf_member_info (ctf_dict_t *fp, ctf_id_t type, const char *name,
&& (ctf_type_kind (fp, memb.ctlm_type) == CTF_K_STRUCT
|| ctf_type_kind (fp, memb.ctlm_type) == CTF_K_UNION)
&& (ctf_member_info (fp, memb.ctlm_type, name, mip) == 0))
return 0;
{
mip->ctm_offset += (unsigned long) CTF_LMEM_OFFSET (&memb);
return 0;
}
if (strcmp (membname, name) == 0)
{