/* Test bug in dwfl_report_segment() coalescing.

   Copyright (C) 2019 Facebook

   This file is part of elfutils.

   This file is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   elfutils is distributed in the hope that it will be useful, but

   WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <config.h>

#include <assert.h>

#include <inttypes.h>

#include <stdio.h>

#include <stdio_ext.h>

#include <locale.h>

#include ELFUTILS_HEADER(dwfl)

static const Dwfl_Callbacks offline_callbacks =

  {

    .find_debuginfo = INTUSE(dwfl_standard_find_debuginfo),

    .section_address = INTUSE(dwfl_offline_section_address),

  };

int

main (void)

{

  /* We use no threads here which can interfere with handling a stream.  */

  (void) __fsetlocking (stdout, FSETLOCKING_BYCALLER);

  /* Set locale.  */

  (void) setlocale (LC_ALL, "");

  Dwfl *dwfl = dwfl_begin (&offline_callbacks);

  assert (dwfl != NULL);

  GElf_Phdr phdr1 =

    {

      .p_type = PT_LOAD,

      .p_flags = PF_R,

      .p_offset = 0xf00,

      .p_vaddr = 0xf00,

      .p_filesz = 0x100,

      .p_memsz = 0x100,

      .p_align = 4,

    };

  int ndx = dwfl_report_segment (dwfl, 1, &phdr1, 0, dwfl);

  assert(ndx == 1);

  ndx = dwfl_addrsegment (dwfl, 0xf00, NULL);

  assert(ndx == 1);

  GElf_Phdr phdr2 =

    {

      .p_type = PT_LOAD,

      .p_flags = PF_R | PF_W,

      .p_offset = 0x1000,

      .p_vaddr = 0x1000,

      .p_filesz = 0x100,

      .p_memsz = 0x100,

      .p_align = 4,

    };

  ndx = dwfl_report_segment (dwfl, 2, &phdr2, 0, dwfl);

  assert(ndx == 2);

  ndx = dwfl_addrsegment (dwfl, 0x1000, NULL);

  assert(ndx == 1 || ndx == 2);

  dwfl_end (dwfl);

  return 0;

}