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116 lines
3.0 KiB
116 lines
3.0 KiB
/* Test program for libdwfl file decriptors leakage. |
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Copyright (C) 2007, 2008 Red Hat, Inc. |
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This file is part of elfutils. |
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This file is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 3 of the License, or |
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(at your option) any later version. |
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elfutils is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
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#include <config.h> |
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#include <assert.h> |
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#include <inttypes.h> |
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#include <stdio.h> |
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#include <stdio_ext.h> |
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#include <locale.h> |
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#include <dirent.h> |
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#include <stdlib.h> |
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#include <errno.h> |
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#include <error.h> |
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#include <unistd.h> |
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#include <dwarf.h> |
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#ifndef __linux__ |
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int |
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main (void) |
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{ |
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return 77; /* dwfl_linux_proc_report is linux specific. */ |
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} |
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#else |
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#include <sys/resource.h> |
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#include ELFUTILS_HEADER(dwfl) |
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static Dwfl * |
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elfutils_open (pid_t pid, Dwarf_Addr address) |
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{ |
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static char *debuginfo_path; |
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static const Dwfl_Callbacks proc_callbacks = |
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{ |
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.find_debuginfo = dwfl_standard_find_debuginfo, |
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.debuginfo_path = &debuginfo_path, |
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.find_elf = dwfl_linux_proc_find_elf, |
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}; |
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Dwfl *dwfl = dwfl_begin (&proc_callbacks); |
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if (dwfl == NULL) |
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error (2, 0, "dwfl_begin: %s", dwfl_errmsg (-1)); |
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int result = dwfl_linux_proc_report (dwfl, pid); |
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if (result < 0) |
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error (2, 0, "dwfl_linux_proc_report: %s", dwfl_errmsg (-1)); |
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else if (result > 0) |
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error (2, result, "dwfl_linux_proc_report"); |
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if (dwfl_report_end (dwfl, NULL, NULL) != 0) |
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error (2, 0, "dwfl_report_end: %s", dwfl_errmsg (-1)); |
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Dwarf_Addr bias; |
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Dwarf *dbg = dwfl_addrdwarf (dwfl, address, &bias); |
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if (dbg != NULL) |
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{ |
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Elf *elf = dwarf_getelf (dbg); |
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if (elf == NULL) |
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error (2, 0, "dwarf_getelf: %s", dwarf_errmsg (-1)); |
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} |
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else |
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{ |
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Dwfl_Module *module = dwfl_addrmodule (dwfl, address); |
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if (module == NULL) |
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error (2, 0, "dwfl_addrmodule: no module available for 0x%" PRIx64 "", |
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address); |
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Elf *elf = dwfl_module_getelf (module, &bias); |
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if (elf == NULL) |
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error (2, 0, "dwfl_module_getelf: %s", dwfl_errmsg (-1)); |
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} |
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return dwfl; |
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} |
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static void |
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elfutils_close (Dwfl *dwfl) |
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{ |
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dwfl_end (dwfl); |
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} |
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int |
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main (void) |
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{ |
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/* We use no threads here which can interfere with handling a stream. */ |
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(void) __fsetlocking (stdout, FSETLOCKING_BYCALLER); |
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/* Set locale. */ |
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(void) setlocale (LC_ALL, ""); |
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struct rlimit fd_limit = { .rlim_cur = 32, .rlim_max = 32 }; |
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if (setrlimit (RLIMIT_NOFILE, &fd_limit) < 0) |
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error (2, errno, "setrlimit"); |
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for (int i = 0; i < 5000; ++i) |
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{ |
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Dwfl *dwfl = elfutils_open (getpid (), (Dwarf_Addr) (uintptr_t) &main); |
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elfutils_close (dwfl); |
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} |
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return 0; |
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} |
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#endif
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