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9b9e262994
Just because a path is an error path doesn't mean the program terminates there if you don't ask it to. And we don't want to -- but that means we need to initialize the variables that are missed if an error happens to *something*. Type ID 0 (unimplemented) will do: it'll induce further ECTF_BADID errors, but that's no bad thing. libctf/ChangeLog: * testsuite/libctf-writable/libctf-errors.c: Initialize variables.
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/* Make sure that error returns are correct. Usually this is trivially
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true, but on platforms with unusual type sizes all the casting might
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cause problems with unexpected sign-extension and truncation. */
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#include <ctf-api.h>
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#include <stdio.h>
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#include <stdlib.h>
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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_next_t *i = NULL;
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size_t boom = 0;
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ctf_id_t itype = 0, stype = 0;
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ctf_encoding_t encoding = {0};
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ctf_membinfo_t mi;
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ssize_t ret;
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int err;
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if ((fp = ctf_create (&err)) == NULL)
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{
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fprintf (stderr, "%s: cannot create: %s\n", argv[0], ctf_errmsg (err));
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return 1;
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}
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/* First error class: int return. */
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if (ctf_member_count (fp, 1024) >= 0)
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fprintf (stderr, "int return: non-error return: %i\n",
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ctf_member_count(fp, 1024));
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/* Second error class: type ID return. */
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if (ctf_type_reference (fp, 1024) != CTF_ERR)
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fprintf (stderr, "ctf_id_t return: non-error return: %li\n",
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ctf_type_reference (fp, 1024));
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/* Third error class: ssize_t return. Create a type to iterate over first. */
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if ((itype = ctf_add_integer (fp, CTF_ADD_ROOT, "int", &encoding)) == CTF_ERR)
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fprintf (stderr, "cannot add int: %s\n", ctf_errmsg (ctf_errno (fp)));
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else if ((stype = ctf_add_struct (fp, CTF_ADD_ROOT, "foo")) == CTF_ERR)
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fprintf (stderr, "cannot add struct: %s\n", ctf_errmsg (ctf_errno (fp)));
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else if (ctf_add_member (fp, stype, "bar", itype) < 0)
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fprintf (stderr, "cannot add member: %s\n", ctf_errmsg (ctf_errno (fp)));
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if (ctf_member_info (fp, stype, "bar", &mi) < 0)
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fprintf (stderr, "cannot get member info: %s\n", ctf_errmsg (ctf_errno (fp)));
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/* Iteration should never produce an offset bigger than the offset just returned,
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and should quickly terminate. */
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while ((ret = ctf_member_next (fp, stype, &i, NULL, NULL, 0)) >= 0) {
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if (ret > mi.ctm_offset)
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fprintf (stderr, "ssize_t return: unexpected offset: %zi\n", ret);
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if (boom++ > 1000)
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{
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fprintf (stderr, "member iteration went on way too long\n");
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exit (1);
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}
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}
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/* Fourth error class (trivial): pointer return. */
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if (ctf_type_aname (fp, 1024) != NULL)
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fprintf (stderr, "pointer return: non-error return: %p\n",
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ctf_type_aname (fp, 1024));
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ctf_file_close (fp);
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printf("All done.\n");
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return 0;
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}
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