Build tool for hunting down flakes

2025-06-27 23:08:31 +00:00 · 2024-12-24 11:34:42 -08:00 · 2024-12-24 11:34:42 -08:00 · 2de3845b25
commit 2de3845b25
parent 93e22c581f
10 changed files with 78 additions and 131 deletions
--- a/tool/build/dlopen_tester.c
+++ b/tool/build/dlopen_tester.c
@ -0,0 +1,126 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8                               :vi │
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2024 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ Permission to use, copy, modify, and/or distribute this software for         │
+│ any purpose with or without fee is hereby granted, provided that the         │
+│ above copyright notice and this permission notice appear in all copies.      │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                │
+│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                │
+│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             │
+│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         │
+│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        │
+│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               │
+│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             │
+│ PERFORMANCE OF THIS SOFTWARE.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/calls/calls.h"
+#include "libc/dlopen/dlfcn.h"
+#include "libc/limits.h"
+#include "libc/runtime/runtime.h"
+#include "libc/stdio/stdio.h"
+#include "libc/str/str.h"
+
+struct big {
+  long x1;
+  long x2;
+  long x3;
+  long x4;
+  long x5;
+  long x6;
+  long x7;
+  long x8;
+  long x9;
+  double f0;
+  double f1;
+};
+
+int main(int argc, char *argv[]) {
+
+  void *lib = cosmo_dlopen(argv[1], RTLD_LAZY);
+  if (!lib) {
+    tinyprint(2, "cosmo_dlopen() failed: ", cosmo_dlerror(), "\n", NULL);
+    exit(1);
+  }
+
+  fprintf(stderr, "opened library!\n");
+
+  long (*big)(struct big *, long, long, long, long, long, long, long, long,
+              long, double, double) = cosmo_dlsym(lib, "big");
+  if (!big) {
+    tinyprint(2, "cosmo_dlsym() failed: ", cosmo_dlerror(), "\n", NULL);
+    exit(1);
+  }
+
+  fprintf(stderr, "imported symbol!\n");
+
+  struct big args = {0};
+  long res = big(&args, 1, 2, 3, 4, 5, 6, 7, 8, 9, 3.14, 2.3);
+
+  int fails = 0;
+
+  if (res != 31337) {
+    fprintf(stderr, "error: bad result: %016lx\n", res);
+    ++fails;
+  }
+
+  if (args.x1 != 1) {
+    fprintf(stderr, "error: bad x1: %016lx\n", args.x1);
+    ++fails;
+  }
+
+  if (args.x2 != 2) {
+    fprintf(stderr, "error: bad x2: %016lx\n", args.x2);
+    ++fails;
+  }
+
+  if (args.x3 != 3) {
+    fprintf(stderr, "error: bad x3: %016lx\n", args.x3);
+    ++fails;
+  }
+
+  if (args.x4 != 4) {
+    fprintf(stderr, "error: bad x4: %016lx\n", args.x4);
+    ++fails;
+  }
+
+  if (args.x5 != 5) {
+    fprintf(stderr, "error: bad x5: %016lx\n", args.x5);
+    ++fails;
+  }
+
+  if (args.x6 != 6) {
+    fprintf(stderr, "error: bad x6: %016lx\n", args.x6);
+    ++fails;
+  }
+
+  if (args.x7 != 7) {
+    fprintf(stderr, "error: bad x7: %016lx\n", args.x7);
+    ++fails;
+  }
+
+  if (args.x8 != 8) {
+    fprintf(stderr, "error: bad x8: %016lx\n", args.x8);
+    ++fails;
+  }
+
+  if (args.x9 != 9) {
+    fprintf(stderr, "error: bad x9: %016lx\n", args.x9);
+    ++fails;
+  }
+
+  if (args.f0 != 3.14) {
+    fprintf(stderr, "error: bad f0: %g\n", args.f0);
+    ++fails;
+  }
+
+  if (args.f1 != 2.3) {
+    fprintf(stderr, "error: bad f1: %g\n", args.f1);
+    ++fails;
+  }
+
+  cosmo_dlclose(lib);
+  return fails;
+}