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a2a9b6487d
This patch inverts the ordering of nelems on multidimensional arrays on versions of gcc without the CTF_F_ARRNELEMS flag. This allows those systems which run older gcc to pass the test without modification to the multidim-array.lk file. libctf/ChangeLog: * testsuite/libctf-lookup/multidim-array.c: Test fixes.
109 lines
2.4 KiB
C
109 lines
2.4 KiB
C
#include "config.h"
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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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#include <string.h>
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static char *
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insert_dimension (char *old_str, int num)
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{
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char *bracket_ptr = strchr (old_str, '[');
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if (!bracket_ptr)
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{
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if (asprintf (&old_str, "int [%d]", num) < 0)
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return NULL;
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}
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else if (asprintf (&old_str, "int [%d]%s", num, bracket_ptr) < 0)
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return NULL;
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return old_str;
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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_archive_t *ctf;
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ctf_dict_t *fp;
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int err;
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ctf_dump_state_t *dump_state = NULL;
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char *dumpstr;
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ctf_next_t *it = NULL;
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ctf_id_t type;
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int flagged = 0;
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const char *name = NULL;
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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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/* First, check for signs that the compiler is fixed but not emitting the
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relevant flag yet. This combination is not expected to work right. */
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while ((dumpstr = ctf_dump (fp, &dump_state, CTF_SECT_HEADER, NULL, NULL))
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!= NULL)
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{
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if (strstr (dumpstr, "CTF_F_ARRNELEMS") != NULL)
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flagged = 1;
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free (dumpstr);
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}
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if (!flagged)
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{
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ctf_arinfo_t ar;
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if ((type = ctf_lookup_by_symbol_name (fp, "a")) == CTF_ERR)
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goto unexpected;
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if (ctf_array_info (fp, type, &ar) < 0)
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goto unexpected;
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if (ar.ctr_nelems == 3)
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{
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fprintf (stderr, "UNSUPPORTED: compiler has GCC PR114186 fixed but "
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"no indicative flag\n");
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return 0;
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}
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}
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/* Now check for the actual bug. */
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if (flagged)
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{
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while ((type = ctf_type_next (fp, &it, NULL, 1)) != -1)
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if (ctf_type_kind (fp, type) == CTF_K_ARRAY)
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printf ("%s\n", ctf_type_aname (fp, type));
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}
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else
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{
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while ((type = ctf_symbol_next (fp, &it, &name, 0)) != CTF_ERR)
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{
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char *outstr = strdup ("int ");
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while (ctf_type_kind (fp, type) == CTF_K_ARRAY)
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{
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ctf_arinfo_t ar;
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if (ctf_array_info (fp, type, &ar) < 0)
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goto unexpected;
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outstr = insert_dimension (outstr, ar.ctr_nelems);
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printf ("%s\n", outstr);
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type = ar.ctr_contents;
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}
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free (outstr);
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}
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}
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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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unexpected:
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fprintf (stderr,
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"Cannot look up symbol to determine compiler bugginess: %s\n",
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ctf_errmsg (ctf_errno (fp)));
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return 1;
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}
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