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;
  22
  23         if (!run_command(m, &timeleft, &output, "gcov -h"))
  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                 if (!compile_object(m, fullfile, ccan_dir, "",
  41                                     i->cov_compiled, &err)) {
  42                         score_file_error(score, i, 0, err);
  43                         talloc_free(i->cov_compiled);
  44                         i->cov_compiled = NULL;
  45                         return false;
  46                 }
  47                 *modobjs = talloc_asprintf_append(*modobjs,
  48                                                   " %s", i->cov_compiled);
  49         }
  50         return true;
  51 }
  52
  53 /* FIXME: Merge this into one place. */
  54 static char *obj_list(const struct manifest *m, const char *modobjs)
  55 {
  56         char *list = talloc_strdup(m, "");
  57         struct ccan_file *i;
  58         struct manifest *subm;
  59
  60         /* Objects from any other C files. */
  61         list_for_each(&m->other_test_c_files, i, list)
  62                 list = talloc_asprintf_append(list, " %s", i->compiled);
  63
  64         if (modobjs)
  65                 list = talloc_append_string(list, modobjs);
  66
  67         /* Other ccan modules (don't need coverage versions of those). */
  68         list_for_each(&m->deps, subm, list) {
  69                 if (subm->compiled)
  70                         list = talloc_asprintf_append(list, " %s",
  71                                                       subm->compiled);
  72         }
  73
  74         return list;
  75 }
  76
  77 static char *lib_list(const struct manifest *m)
  78 {
  79         unsigned int i, num;
  80         char **libs = get_libs(m, m->dir, &num, &m->info_file->compiled);
  81         char *ret = talloc_strdup(m, "");
  82
  83         for (i = 0; i < num; i++)
  84                 ret = talloc_asprintf_append(ret, "-l%s ", libs[i]);
  85         return ret;
  86 }
  87
  88 static char *cov_compile(const void *ctx,
  89                          struct manifest *m,
  90                          struct ccan_file *file,
  91                          const char *modobjs,
  92                          bool keep)
  93 {
  94         char *output;
  95
  96         file->cov_compiled = maybe_temp_file(ctx, "", keep, file->fullname);
  97         if (!compile_and_link(ctx, file->fullname, ccan_dir,
  98                               obj_list(m, modobjs),
  99                               COVERAGE_CFLAGS,
 100                               lib_list(m), file->cov_compiled, &output)) {
 101                 talloc_free(file->cov_compiled);
 102                 file->cov_compiled = NULL;
 103                 return output;
 104         }
 105         talloc_free(output);
 106         return NULL;
 107 }
 108
 109 /* FIXME: Coverage from testable examples as well. */
 110 static void do_compile_coverage_tests(struct manifest *m,
 111                                       bool keep,
 112                                       unsigned int *timeleft,
 113                                       struct score *score)
 114 {
 115         char *cmdout, *modobjs = NULL;
 116         struct ccan_file *i;
 117
 118         if (!list_empty(&m->api_tests)
 119             && !build_module_objs_with_coverage(m, keep, score, &modobjs)) {
 120                 score->error = "Failed to compile module objects with coverage";
 121                 return;
 122         }
 123
 124         list_for_each(&m->run_tests, i, list) {
 125                 cmdout = cov_compile(m, m, i, NULL, keep);
 126                 if (cmdout) {
 127                         score->error = "Failed to compile test with coverage";
 128                         score_file_error(score, i, 0, cmdout);
 129                 }
 130         }
 131
 132         list_for_each(&m->api_tests, i, list) {
 133                 cmdout = cov_compile(m, m, i, modobjs, keep);
 134                 if (cmdout) {
 135                         score->error = "Failed to compile test with coverage";
 136                         score_file_error(score, i, 0, cmdout);
 137                 }
 138         }
 139         if (!score->error) {
 140                 score->pass = true;
 141                 score->score = score->total;
 142         }
 143 }
 144
 145 struct ccanlint tests_compile_coverage = {
 146         .key = "tests_compile_coverage",
 147         .name = "Module tests compile with " COVERAGE_CFLAGS,
 148         .check = do_compile_coverage_tests,
 149         .can_run = can_run_coverage,
 150         .needs = "tests_compile"
 151 };
 152
 153 REGISTER_TEST(tests_compile_coverage);