tools/build/feature/test-libdw.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <stdlib.h>
   3 #include <dwarf.h>
   4 #include <elfutils/libdw.h>
   5 #include <elfutils/libdwfl.h>
   6 #include <elfutils/version.h>
   7
   8 int test_libdw(void)
   9 {
  10         Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
  11
  12         return (long)dbg;
  13 }
  14
  15 int test_libdw_unwind(void)
  16 {
  17         /*
  18          * This function is guarded via: __nonnull_attribute__ (1, 2).
  19          * Passing '1' as arguments value. This code is never executed,
  20          * only compiled.
  21          */
  22         dwfl_thread_getframes((void *) 1, (void *) 1, NULL);
  23         return 0;
  24 }
  25
  26 int test_libdw_getlocations(void)
  27 {
  28         Dwarf_Addr base, start, end;
  29         Dwarf_Attribute attr;
  30         Dwarf_Op *op;
  31         size_t nops;
  32         ptrdiff_t offset = 0;
  33
  34         return (int)dwarf_getlocations(&attr, offset, &base, &start, &end, &op, &nops);
  35 }
  36
  37 int test_libdw_getcfi(void)
  38 {
  39         Dwarf *dwarf = NULL;
  40
  41         return dwarf_getcfi(dwarf) == NULL;
  42 }
  43
  44 int test_elfutils(void)
  45 {
  46         Dwarf_CFI *cfi = NULL;
  47
  48         dwarf_cfi_end(cfi);
  49         return 0;
  50 }
  51
  52 int main(void)
  53 {
  54         return test_libdw() + test_libdw_unwind() + test_libdw_getlocations() +
  55                test_libdw_getcfi() + test_elfutils();
  56 }