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 bool build_module_objs_with_coverage(struct manifest *m, bool keep,
  29                                             struct score *score,
  30                                             char **modobjs)
  31 {
  32         struct ccan_file *i;
  33
  34         *modobjs = talloc_strdup(m, "");
  35         list_for_each(&m->c_files, i, list) {
  36                 char *err;
  37                 char *fullfile = talloc_asprintf(m, "%s/%s", m->dir, i->name);
  38
  39                 i->cov_compiled = maybe_temp_file(m, "", keep, fullfile);
  40                 err = compile_object(m, fullfile, ccan_dir, "",
  41                                      i->cov_compiled);
  42                 if (err) {
  43                         score_file_error(score, i, 0, err);
  44                         talloc_free(i->cov_compiled);
  45                         i->cov_compiled = NULL;
  46                         return false;
  47                 }
  48                 *modobjs = talloc_asprintf_append(*modobjs,
  49                                                   " %s", i->cov_compiled);
  50         }
  51         return true;
  52 }
  53
  54 static char *obj_list(const struct manifest *m, const char *modobjs)
  55 {
  56         char *list;
  57         struct ccan_file *i;
  58
  59         /* We expect to be linked with tap, unless that's us. */
  60         if (!streq(m->basename, "tap"))
  61                 list = talloc_asprintf(m, "%s/ccan/tap.o", ccan_dir);
  62         else
  63                 list = talloc_strdup(m, "");
  64
  65         /* Objects from any other C files. */
  66         list_for_each(&m->other_test_c_files, i, list)
  67                 list = talloc_asprintf_append(list, " %s", i->compiled);
  68
  69         if (modobjs)
  70                 list = talloc_append_string(list, modobjs);
  71
  72         /* Other ccan modules (don't need coverage versions of those). */
  73         list_for_each(&m->dep_dirs, i, list) {
  74                 if (i->compiled)
  75                         list = talloc_asprintf_append(list, " %s", i->compiled);
  76         }
  77
  78         return list;
  79 }
  80
  81 static char *lib_list(const struct manifest *m)
  82 {
  83         unsigned int i, num;
  84         char **libs = get_libs(m, ".", &num, &m->info_file->compiled);
  85         char *ret = talloc_strdup(m, "");
  86
  87         for (i = 0; i < num; i++)
  88                 ret = talloc_asprintf_append(ret, "-l%s ", libs[i]);
  89         return ret;
  90 }
  91
  92 static char *cov_compile(const void *ctx,
  93                          struct manifest *m,
  94                          struct ccan_file *file,
  95                          const char *modobjs,
  96                          bool keep)
  97 {
  98         char *errmsg;
  99
 100         file->cov_compiled = maybe_temp_file(ctx, "", keep, file->fullname);
 101         errmsg = compile_and_link(ctx, file->fullname, ccan_dir,
 102                                   obj_list(m, modobjs),
 103                                   COVERAGE_CFLAGS,
 104                                   lib_list(m), file->cov_compiled);
 105         if (errmsg) {
 106                 talloc_free(file->cov_compiled);
 107                 file->cov_compiled = NULL;
 108                 return errmsg;
 109         }
 110
 111         return NULL;
 112 }
 113
 114 /* FIXME: Coverage from testable examples as well. */
 115 static void do_compile_coverage_tests(struct manifest *m,
 116                                       bool keep,
 117                                       unsigned int *timeleft,
 118                                       struct score *score)
 119 {
 120         char *cmdout, *modobjs = NULL;
 121         struct ccan_file *i;
 122
 123         if (!list_empty(&m->api_tests)
 124             && !build_module_objs_with_coverage(m, keep, score, &modobjs)) {
 125                 score->error = "Failed to compile module objects with coverage";
 126                 return;
 127         }
 128
 129         list_for_each(&m->run_tests, i, list) {
 130                 cmdout = cov_compile(m, m, i, NULL, keep);
 131                 if (cmdout) {
 132                         score->error = "Failed to compile test with coverage";
 133                         score_file_error(score, i, 0, cmdout);
 134                 }
 135         }
 136
 137         list_for_each(&m->api_tests, i, list) {
 138                 cmdout = cov_compile(m, m, i, modobjs, keep);
 139                 if (cmdout) {
 140                         score->error = "Failed to compile test with coverage";
 141                         score_file_error(score, i, 0, cmdout);
 142                 }
 143         }
 144         if (!score->error) {
 145                 score->pass = true;
 146                 score->score = score->total;
 147         }
 148 }
 149
 150 struct ccanlint compile_coverage_tests = {
 151         .key = "compile-coverage-tests",
 152         .name = "Module tests compile with profiling",
 153         .check = do_compile_coverage_tests,
 154         .can_run = can_run_coverage,
 155 };
 156
 157 REGISTER_TEST(compile_coverage_tests, &compile_tests, NULL);