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/* Determine whether libctf/33339 is fixed, if and only if GCC PR 121411 is also
fixed. */
#include "config.h"
#include <ctf-api.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Determine whether the passed-in struct's member's offsets ever descend. */
static int
offsets_ascending (ctf_dict_t *fp, ctf_id_t type)
{
ctf_next_t *it = NULL;
ssize_t offset, last_offset = 0;
while ((offset = ctf_member_next (fp, type, &it, NULL, NULL, 0)) >= 0)
{
if (offset < last_offset)
return 0;
last_offset = offset;
}
if (ctf_errno (fp) != ECTF_NEXT_END)
{
fprintf (stderr, "Cannot check member offsets: %s\n",
ctf_errmsg (ctf_errno (fp)));
exit (0);
}
return 1;
}
int
main (int argc, char *argv[])
{
ctf_archive_t *ctf;
ctf_dict_t *fp;
ctf_id_t type;
int err;
if (argc != 3)
{
fprintf (stderr, "Syntax: %s PROGRAM OBJ\n", argv[0]);
exit(1);
}
/* Check for bugginess of compiler. */
if ((ctf = ctf_open (argv[2], NULL, &err)) == NULL)
{
fprintf (stderr, "Cannot open compiler object file %s: %s\n",
argv[2], ctf_errmsg (err));
exit (1);
}
/* Verify that offsets only ascend. */
if ((fp = ctf_arc_lookup_symbol_name (ctf, "huge_used", &type, &err)) == NULL)
{
fprintf (stderr, "UNSUPPORTED: compiler does not provide expected symbol.\n");
exit (0);
}
if (!offsets_ascending (fp, type))
{
fprintf (stderr, "UNSUPPORTED: GCC bug PR121411 detected.\n");
exit (0);
}
ctf_dict_close (fp);
ctf_close (ctf);
/* Check if test is disabled (e.g. on 32-bit). */
if ((ctf = ctf_open (argv[1], NULL, &err)) == NULL)
{
fprintf (stderr, "Cannot open linked binary test file %s: %s\n",
argv[1], ctf_errmsg (err));
exit (1);
}
if ((fp = ctf_arc_lookup_symbol_name (ctf, "test_disabled", &type, &err)) != NULL)
{
fprintf (stderr, "UNSUPPORTED: test not necessary on 32-bit targets.\n");
exit (0);
}
if ((fp = ctf_arc_lookup_symbol_name (ctf, "big_used", &type, &err)) == NULL)
{
fprintf (stderr, "big struct symbol not found.\n");
exit (1);
}
if (!offsets_ascending (fp, type))
{
fprintf (stderr, "large struct offsets incorrect.\n");
exit (1);
}
ctf_dict_close (fp);
if ((fp = ctf_arc_lookup_symbol_name (ctf, "huge_used", &type, &err)) == NULL)
{
fprintf (stderr, "huge struct symbol not found.\n");
exit (1);
}
if (!offsets_ascending (fp, type))
{
fprintf (stderr, "huge struct offsets incorrect.\n");
exit (1);
}
ctf_dict_close (fp);
ctf_close (ctf);
fprintf (stderr, "Large and huge structs working fine.\n");
exit (0);
}
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