mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-23 15:32:26 +00:00
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/* Test program for libdwfl file decriptors leakage.
|
|
Copyright (C) 2007, 2008 Red Hat, Inc.
|
|
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 <dirent.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <error.h>
|
|
#include <unistd.h>
|
|
#include <dwarf.h>
|
|
|
|
#ifndef __linux__
|
|
int
|
|
main (void)
|
|
{
|
|
return 77; /* dwfl_linux_proc_report is linux specific. */
|
|
}
|
|
#else
|
|
|
|
#include <sys/resource.h>
|
|
#include ELFUTILS_HEADER(dwfl)
|
|
|
|
|
|
static Dwfl *
|
|
elfutils_open (pid_t pid, Dwarf_Addr address)
|
|
{
|
|
static char *debuginfo_path;
|
|
static const Dwfl_Callbacks proc_callbacks =
|
|
{
|
|
.find_debuginfo = dwfl_standard_find_debuginfo,
|
|
.debuginfo_path = &debuginfo_path,
|
|
|
|
.find_elf = dwfl_linux_proc_find_elf,
|
|
};
|
|
Dwfl *dwfl = dwfl_begin (&proc_callbacks);
|
|
if (dwfl == NULL)
|
|
error (2, 0, "dwfl_begin: %s", dwfl_errmsg (-1));
|
|
|
|
int result = dwfl_linux_proc_report (dwfl, pid);
|
|
if (result < 0)
|
|
error (2, 0, "dwfl_linux_proc_report: %s", dwfl_errmsg (-1));
|
|
else if (result > 0)
|
|
error (2, result, "dwfl_linux_proc_report");
|
|
|
|
if (dwfl_report_end (dwfl, NULL, NULL) != 0)
|
|
error (2, 0, "dwfl_report_end: %s", dwfl_errmsg (-1));
|
|
|
|
Dwarf_Addr bias;
|
|
Dwarf *dbg = dwfl_addrdwarf (dwfl, address, &bias);
|
|
if (dbg != NULL)
|
|
{
|
|
Elf *elf = dwarf_getelf (dbg);
|
|
if (elf == NULL)
|
|
error (2, 0, "dwarf_getelf: %s", dwarf_errmsg (-1));
|
|
}
|
|
else
|
|
{
|
|
Dwfl_Module *module = dwfl_addrmodule (dwfl, address);
|
|
if (module == NULL)
|
|
error (2, 0, "dwfl_addrmodule: no module available for 0x%" PRIx64 "",
|
|
address);
|
|
Elf *elf = dwfl_module_getelf (module, &bias);
|
|
if (elf == NULL)
|
|
error (2, 0, "dwfl_module_getelf: %s", dwfl_errmsg (-1));
|
|
}
|
|
|
|
return dwfl;
|
|
}
|
|
|
|
static void
|
|
elfutils_close (Dwfl *dwfl)
|
|
{
|
|
dwfl_end (dwfl);
|
|
}
|
|
|
|
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, "");
|
|
|
|
struct rlimit fd_limit = { .rlim_cur = 32, .rlim_max = 32 };
|
|
if (setrlimit (RLIMIT_NOFILE, &fd_limit) < 0)
|
|
error (2, errno, "setrlimit");
|
|
|
|
for (int i = 0; i < 5000; ++i)
|
|
{
|
|
Dwfl *dwfl = elfutils_open (getpid (), (Dwarf_Addr) (uintptr_t) &main);
|
|
elfutils_close (dwfl);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif
|