1 /* Make sure you can add to ctf_open()ed CTF dicts, and that you 2 cannot make changes to existing types. */ 3 4 #include <ctf-api.h> 5 #include <stdio.h> 6 #include <stdlib.h> 7 8 int 9 main (int argc, char *argv[]) 10 { 11 ctf_dict_t *fp; 12 ctf_archive_t *ctf; 13 ctf_id_t type, ptrtype; 14 ctf_arinfo_t ar = {0, 0, 0}; 15 ctf_encoding_t en = { CTF_INT_SIGNED, 0, sizeof (int) }; 16 unsigned char *ctf_written; 17 size_t size; 18 int err; 19 20 if (argc != 2) 21 { 22 fprintf (stderr, "Syntax: %s PROGRAM\n", argv[0]); 23 exit(1); 24 } 25 26 if ((ctf = ctf_open (argv[1], NULL, &err)) == NULL) 27 goto open_err; 28 if ((fp = ctf_dict_open (ctf, NULL, &err)) == NULL) 29 goto open_err; 30 31 /* Check that various modifications to already-written types 32 are prohibited. */ 33 34 if (ctf_add_integer (fp, CTF_ADD_ROOT, "int", &en) == 0) 35 fprintf (stderr, "allowed to add integer existing in readonly portion\n"); 36 37 if (ctf_errno (fp) != ECTF_RDONLY) 38 fprintf (stderr, "unexpected error %s attempting to add integer in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 39 40 if (ctf_add_typedef (fp, CTF_ADD_ROOT, "a_typedef", 0) == 0) 41 fprintf (stderr, "allowed to add typedef existing in readonly portion\n"); 42 43 if (ctf_errno (fp) != ECTF_RDONLY) 44 fprintf (stderr, "unexpected error %s attempting to add typedef in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 45 46 if (ctf_add_struct (fp, CTF_ADD_ROOT, "a_struct") == 0) 47 fprintf (stderr, "allowed to add struct existing in readonly portion\n"); 48 49 if (ctf_errno (fp) != ECTF_RDONLY) 50 fprintf (stderr, "unexpected error %s attempting to add struct in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 51 52 if (ctf_add_union (fp, CTF_ADD_ROOT, "a_union") == 0) 53 fprintf (stderr, "allowed to add union existing in readonly portion\n"); 54 55 if (ctf_errno (fp) != ECTF_RDONLY) 56 fprintf (stderr, "unexpected error %s attempting to add union in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 57 58 if (ctf_add_enum (fp, CTF_ADD_ROOT, "an_enum") == 0) 59 fprintf (stderr, "allowed to add enum existing in readonly portion\n"); 60 61 if (ctf_errno (fp) != ECTF_RDONLY) 62 fprintf (stderr, "unexpected error %s attempting to add enum in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 63 64 if (ctf_add_struct (fp, CTF_ADD_ROOT, "struct_forward") == 0) 65 fprintf (stderr, "allowed to promote struct forward existing in readonly portion\n"); 66 67 if (ctf_errno (fp) != ECTF_RDONLY) 68 fprintf (stderr, "unexpected error %s attempting to promote struct forward in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 69 70 if (ctf_add_union (fp, CTF_ADD_ROOT, "union_forward") == 0) 71 fprintf (stderr, "allowed to promote union forward existing in readonly portion\n"); 72 73 if (ctf_errno (fp) != ECTF_RDONLY) 74 fprintf (stderr, "unexpected error %s attempting to promote union forward in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 75 76 if (ctf_add_enum (fp, CTF_ADD_ROOT, "enum_forward") == 0) 77 fprintf (stderr, "allowed to promote enum forward existing in readonly portion\n"); 78 79 if (ctf_errno (fp) != ECTF_RDONLY) 80 fprintf (stderr, "unexpected error %s attempting to promote enum forward in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 81 82 if ((type = ctf_lookup_by_name (fp, "struct a_struct")) == CTF_ERR) 83 fprintf (stderr, "Lookup of struct a_struct failed: %s\n", ctf_errmsg (ctf_errno (fp))); 84 85 if (ctf_add_member (fp, type, "wombat", 0) == 0) 86 fprintf (stderr, "allowed to add member to struct existing in readonly portion\n"); 87 88 if (ctf_errno (fp) != ECTF_RDONLY) 89 fprintf (stderr, "unexpected error %s attempting to add member to struct in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 90 91 if ((type = ctf_lookup_by_name (fp, "union a_union")) == CTF_ERR) 92 fprintf (stderr, "Lookup of union a_union failed: %s\n", ctf_errmsg (ctf_errno (fp))); 93 94 if (ctf_add_member (fp, type, "wombat", 0) == 0) 95 fprintf (stderr, "allowed to add member to union existing in readonly portion\n"); 96 97 if (ctf_errno (fp) != ECTF_RDONLY) 98 fprintf (stderr, "unexpected error %s attempting to add member to union in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 99 100 if ((type = ctf_lookup_by_name (fp, "enum an_enum")) == CTF_ERR) 101 fprintf (stderr, "Lookup of enum an_enum failed: %s\n", ctf_errmsg (ctf_errno (fp))); 102 103 if (ctf_add_enumerator (fp, type, "wombat", 0) == 0) 104 fprintf (stderr, "allowed to add enumerator to enum existing in readonly portion\n"); 105 106 if (ctf_errno (fp) != ECTF_RDONLY) 107 fprintf (stderr, "unexpected error %s attempting to add enumerator to enum in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 108 109 if ((type = ctf_lookup_by_name (fp, "an_array")) == CTF_ERR) 110 fprintf (stderr, "Lookup of an_array failed: %s\n", ctf_errmsg (ctf_errno (fp))); 111 112 if ((type = ctf_type_reference (fp, type)) == CTF_ERR) 113 fprintf (stderr, "Lookup of type reffed by an_array failed: %s\n", ctf_errmsg (ctf_errno (fp))); 114 115 if (ctf_set_array (fp, type, &ar) == 0) 116 fprintf (stderr, "allowed to set array in readonly portion\n"); 117 118 if (ctf_errno (fp) != ECTF_RDONLY) 119 fprintf (stderr, "unexpected error %s attempting to set array in readonly portion\n", ctf_errmsg (ctf_errno (fp))); 120 121 if ((ctf_written = ctf_write_mem (fp, &size, 4096)) == NULL) 122 fprintf (stderr, "Re-writeout unexpectedly failed: %s\n", ctf_errmsg (ctf_errno (fp))); 123 free (ctf_written); 124 125 /* Finally, make sure we can add new types, and look them up again. */ 126 127 if ((type = ctf_lookup_by_name (fp, "struct a_struct")) == CTF_ERR) 128 fprintf (stderr, "Lookup of struct a_struct failed: %s\n", ctf_errmsg (ctf_errno (fp))); 129 130 if ((ptrtype = ctf_add_pointer (fp, CTF_ADD_ROOT, type)) == CTF_ERR) 131 fprintf (stderr, "Cannot add pointer to ctf_opened dict: %s\n", ctf_errmsg (ctf_errno (fp))); 132 133 if (ctf_type_reference (fp, ptrtype) == CTF_ERR) 134 fprintf (stderr, "Lookup of pointer preserved across writeout failed: %s\n", ctf_errmsg (ctf_errno (fp))); 135 136 if (ctf_type_reference (fp, ptrtype) != type) 137 fprintf (stderr, "Look up of newly-added type in serialized dict yields ID %lx, expected %lx\n", ctf_type_reference (fp, ptrtype), type); 138 139 ctf_dict_close (fp); 140 ctf_close (ctf); 141 142 printf ("All done.\n"); 143 return 0; 144 145 open_err: 146 fprintf (stderr, "%s: cannot open: %s\n", argv[0], ctf_errmsg (err)); 147 return 1; 148 } 149
Indexes created Sat Feb 28 05:31:39 UTC 2026