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fa4fe27537
GCC permits not only unnamed structs and unions, but cv-qualified ones.
Our earlier fix in 6c3a38777b supported
unnamed structs and unions, but only unqualified ones.
Resolving away cvr-quals of nameless fields (and, irrelevantly, typedefs)
is easy and fixes this problem.
Tests adjusted accordingly.
libctf/
PR libctf/32746
* ctf-types.c (ctf_member_next): Resolve away cv-quals.
(ctf_member_info): Likewise.
* testsuite/libctf-lookup/struct-iteration-ctf.c: Add a cv-qualified
type or two: make sure to keep a non-qualified one.
* testsuite/libctf-lookup/struct-iteration.c: Verify consistency
of ctf_member_next and ctf_member_info.
* testsuite/libctf-lookup/struct-iteration.lk: Adjust.
Tested-by: Stephen Brennan <stephen.s.brennan@oracle.com>
111 lines
2.8 KiB
C
111 lines
2.8 KiB
C
#include <ctf-api.h>
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#include <stdio.h>
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#include <stdlib.h>
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static int
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print_struct (const char *name, ctf_id_t membtype, unsigned long offset,
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void *fp_)
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{
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ctf_dict_t *fp = (ctf_dict_t *) fp_;
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char *type_name = ctf_type_aname (fp, membtype);
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printf ("iter test: %s, offset %lx, has type %lx/%s\n",
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name, offset, membtype, type_name);
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free (type_name);
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return 0;
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}
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int
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main (int argc, char *argv[])
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{
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ctf_dict_t *fp;
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ctf_archive_t *ctf;
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ctf_id_t type;
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ctf_next_t *i = NULL;
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const char *name;
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ctf_id_t membtype;
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ssize_t offset;
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int icount = 0;
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int err;
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if (argc != 2)
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{
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fprintf (stderr, "Syntax: %s PROGRAM\n", argv[0]);
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exit(1);
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}
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if ((ctf = ctf_open (argv[1], NULL, &err)) == NULL)
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goto open_err;
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if ((fp = ctf_dict_open (ctf, NULL, &err)) == NULL)
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goto open_err;
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/* Iterate over the structure members with each iterator type in turn. */
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if ((type = ctf_lookup_by_name (fp, "struct foo_t") ) == CTF_ERR)
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goto err;
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if (ctf_member_iter (fp, type, print_struct, fp) < 0)
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goto ierr;
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while ((offset = ctf_member_next (fp, type, &i, &name, &membtype,
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CTF_MN_RECURSE)) >= 0)
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{
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ctf_membinfo_t memb;
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char *type_name = ctf_type_aname (fp, membtype);
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printf ("next test: %s, offset %zx, has type %lx/%s\n",
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name, offset, membtype, type_name);
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free (type_name);
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/* Check that we can get the same member via ctf_member_info too. */
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if (name[0] != '\0')
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{
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if (ctf_member_info (fp, type, name, &memb) != 0)
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{
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fprintf (stderr, "Cannot get member info for %s: %s\n",
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name, ctf_errmsg (ctf_errno (fp)));
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exit (1);
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}
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if (memb.ctm_offset != offset || memb.ctm_type != membtype)
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{
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fprintf (stderr, "ctf_member_info versus iteration comparison "
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"failure: types %lx/%lx, offsets %zx/%lx\n",
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membtype, memb.ctm_type, offset, memb.ctm_offset);
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}
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}
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}
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if (ctf_errno (fp) != ECTF_NEXT_END)
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goto nerr;
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/* Now make sure the count of members does not include any recursive
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members. */
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while ((offset = ctf_member_next (fp, type, &i, &name, &membtype, 0)) >= 0)
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icount++;
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if (ctf_errno (fp) != ECTF_NEXT_END)
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goto nerr;
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if (icount != ctf_member_count (fp, type))
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printf ("member counts differ: %i by direct iteration, "
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"%i by ctf_member_count\n", icount, ctf_member_count (fp, type));
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ctf_dict_close (fp);
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ctf_close (ctf);
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return 0;
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open_err:
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fprintf (stderr, "%s: cannot open: %s\n", argv[0], ctf_errmsg (err));
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return 1;
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err:
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fprintf (stderr, "Lookup failed: %s\n", ctf_errmsg (ctf_errno (fp)));
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return 1;
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ierr:
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fprintf (stderr, "_iter iteration failed: %s\n", ctf_errmsg (ctf_errno (fp)));
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return 1;
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nerr:
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fprintf (stderr, "_next iteration failed: %s\n", ctf_errmsg (ctf_errno (fp)));
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return 1;
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}
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