git.ozlabs.org Git - ccan/blob - tools/ccanlint/tests/build-coverage.c

   1 #include <tools/ccanlint/ccanlint.h>
   2 #include <tools/tools.h>
   3 #include <ccan/talloc/talloc.h>
   4 #include <ccan/str/str.h>
   5 #include <sys/types.h>
   6 #include <sys/stat.h>
   7 #include <fcntl.h>
   8 #include <unistd.h>
   9 #include <limits.h>
  10 #include <errno.h>
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <err.h>
  14 #include <string.h>
  15 #include <ctype.h>
  16
  17 /* Note: we already test safe_mode in run_tests.c */
  18 static const char *can_run_coverage(struct manifest *m)
  19 {
  20         unsigned int timeleft = default_timeout_ms;
  21         char *output = run_command(m, &timeleft, "gcov -h");
  22
  23         if (output)
  24                 return talloc_asprintf(m, "No gcov support: %s", output);
  25         return NULL;
  26 }
  27
  28 static char *build_module_objs_with_coverage(struct manifest *m, bool keep,
  29                                              char **modobjs)
  30 {
  31         struct ccan_file *i;
  32
  33         *modobjs = talloc_strdup(m, "");
  34         list_for_each(&m->c_files, i, list) {
  35                 char *err;
  36                 char *fullfile = talloc_asprintf(m, "%s/%s", m->dir, i->name);
  37
  38                 i->cov_compiled = maybe_temp_file(m, "", keep, fullfile);
  39                 err = compile_object(m, fullfile, ccan_dir, "",
  40                                      i->cov_compiled);
  41                 if (err) {
  42                         talloc_free(i->cov_compiled);
  43                         return err;
  44                 }
  45                 *modobjs = talloc_asprintf_append(*modobjs,
  46                                                   " %s", i->cov_compiled);
  47         }
  48         return NULL;
  49 }
  50
  51 static char *obj_list(const struct manifest *m, const char *modobjs)
  52 {
  53         char *list;
  54         struct ccan_file *i;
  55
  56         /* We expect to be linked with tap, unless that's us. */
  57         if (!streq(m->basename, "tap"))
  58                 list = talloc_asprintf(m, "%s/ccan/tap.o", ccan_dir);
  59         else
  60                 list = talloc_strdup(m, "");
  61
  62         /* Objects from any other C files. */
  63         list_for_each(&m->other_test_c_files, i, list)
  64                 list = talloc_asprintf_append(list, " %s", i->compiled);
  65
  66         if (modobjs)
  67                 list = talloc_append_string(list, modobjs);
  68
  69         /* Other ccan modules (don't need coverage versions of those). */
  70         list_for_each(&m->dep_dirs, i, list) {
  71                 if (i->compiled)
  72                         list = talloc_asprintf_append(list, " %s", i->compiled);
  73         }
  74
  75         return list;
  76 }
  77
  78 static char *lib_list(const struct manifest *m)
  79 {
  80         unsigned int i, num;
  81         char **libs = get_libs(m, ".", &num, &m->info_file->compiled);
  82         char *ret = talloc_strdup(m, "");
  83
  84         for (i = 0; i < num; i++)
  85                 ret = talloc_asprintf_append(ret, "-l%s ", libs[i]);
  86         return ret;
  87 }
  88
  89 static char *cov_compile(const void *ctx,
  90                          struct manifest *m,
  91                          struct ccan_file *file,
  92                          const char *modobjs,
  93                          bool keep)
  94 {
  95         char *errmsg;
  96
  97         file->cov_compiled = maybe_temp_file(ctx, "", keep, file->fullname);
  98         errmsg = compile_and_link(ctx, file->fullname, ccan_dir,
  99                                   obj_list(m, modobjs),
 100                                   COVERAGE_CFLAGS,
 101                                   lib_list(m), file->cov_compiled);
 102         if (errmsg) {
 103                 talloc_free(file->cov_compiled);
 104                 return errmsg;
 105         }
 106
 107         return NULL;
 108 }
 109
 110 struct compile_tests_result {
 111         struct list_node list;
 112         const char *filename;
 113         const char *description;
 114         const char *output;
 115 };
 116
 117 static void *do_compile_coverage_tests(struct manifest *m,
 118                                        bool keep,
 119                                        unsigned int *timeleft)
 120 {
 121         struct list_head *list = talloc(m, struct list_head);
 122         char *cmdout, *modobjs = NULL;
 123         struct ccan_file *i;
 124         struct compile_tests_result *res;
 125
 126         list_head_init(list);
 127
 128         if (!list_empty(&m->api_tests)) {
 129                 cmdout = build_module_objs_with_coverage(m, keep, &modobjs);
 130                 if (cmdout) {
 131                         res = talloc(list, struct compile_tests_result);
 132                         res->filename = "Module objects with coverage";
 133                         res->description = "failed to compile";
 134                         res->output = talloc_steal(res, cmdout);
 135                         list_add_tail(list, &res->list);
 136                         return list;
 137                 }
 138         }
 139
 140         list_for_each(&m->run_tests, i, list) {
 141                 compile_tests.total_score++;
 142                 cmdout = cov_compile(m, m, i, NULL, keep);
 143                 if (cmdout) {
 144                         res = talloc(list, struct compile_tests_result);
 145                         res->filename = i->name;
 146                         res->description = "failed to compile";
 147                         res->output = talloc_steal(res, cmdout);
 148                         list_add_tail(list, &res->list);
 149                 }
 150         }
 151
 152         list_for_each(&m->api_tests, i, list) {
 153                 compile_tests.total_score++;
 154                 cmdout = cov_compile(m, m, i, modobjs, keep);
 155                 if (cmdout) {
 156                         res = talloc(list, struct compile_tests_result);
 157                         res->filename = i->name;
 158                         res->description = "failed to compile";
 159                         res->output = talloc_steal(res, cmdout);
 160                         list_add_tail(list, &res->list);
 161                 }
 162         }
 163
 164         if (list_empty(list)) {
 165                 talloc_free(list);
 166                 list = NULL;
 167         }
 168
 169         return list;
 170 }
 171
 172 static const char *describe_compile_coverage_tests(struct manifest *m,
 173                                                    void *check_result)
 174 {
 175         struct list_head *list = check_result;
 176         struct compile_tests_result *i;
 177         char *descrip;
 178
 179         descrip = talloc_strdup(list,
 180                                 "Compilation of tests for coverage failed:\n");
 181
 182         list_for_each(list, i, list)
 183                 descrip = talloc_asprintf_append(descrip, "%s %s\n%s",
 184                                                  i->filename, i->description,
 185                                                  i->output);
 186         return descrip;
 187 }
 188
 189 struct ccanlint compile_coverage_tests = {
 190         .key = "compile-coverage-tests",
 191         .name = "Module tests compile with profiling",
 192         .check = do_compile_coverage_tests,
 193         .describe = describe_compile_coverage_tests,
 194         .can_run = can_run_coverage,
 195 };
 196
 197 REGISTER_TEST(compile_coverage_tests, &compile_tests, NULL);