derek.holloway
7502bf64a4
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80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
/* Make sure unnamed field offsets are relative to the containing struct. */
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#include <ctf-api.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "unnamed-field-info-ctf.c"
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static void
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verify_offsetof_matching (ctf_dict_t *fp, ctf_id_t type, const char *name, size_t offset)
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{
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ctf_membinfo_t mi;
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if (ctf_member_info (fp, type, name, &mi) < 0)
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goto err;
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if (mi.ctm_offset != offset * 8)
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fprintf (stderr, "field %s inconsistency: offsetof() says %zi bits, CTF says %li\n",
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name, offset * 8, mi.ctm_offset);
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return;
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err:
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fprintf (stderr, "Cannot look up field %s: %s\n", name,
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ctf_errmsg (ctf_errno (fp)));
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return;
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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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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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/* Dig out some structure members by name. */
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if ((type = ctf_lookup_by_name (fp, "struct A") ) == CTF_ERR)
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goto err;
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verify_offsetof_matching (fp, type, "a", offsetof (struct A, a));
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verify_offsetof_matching (fp, type, "b", offsetof (struct A, b));
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verify_offsetof_matching (fp, type, "one", offsetof (struct A, one));
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verify_offsetof_matching (fp, type, "two", offsetof (struct A, two));
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verify_offsetof_matching (fp, type, "three", offsetof (struct A, three));
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verify_offsetof_matching (fp, type, "four", offsetof (struct A, four));
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verify_offsetof_matching (fp, type, "x", offsetof (struct A, x));
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verify_offsetof_matching (fp, type, "y", offsetof (struct A, y));
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verify_offsetof_matching (fp, type, "z", offsetof (struct A, z));
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verify_offsetof_matching (fp, type, "aleph", offsetof (struct A, aleph));
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ctf_dict_close (fp);
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ctf_arc_close (ctf);
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printf ("Offset validation complete.\n");
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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, "Cannot look up type: %s\n", ctf_errmsg (ctf_errno (fp)));
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return 1;
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}
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