mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
150 lines
3.2 KiB
C
150 lines
3.2 KiB
C
/* Self tests for scoped_mmap for GDB, the GNU debugger.
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Copyright (C) 2018-2024 Free Software Foundation, Inc.
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This file is part of GDB.
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This program 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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This program is distributed in the hope that it will be useful,
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but 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 "defs.h"
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#include "gdbsupport/filestuff.h"
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#include "gdbsupport/scoped_mmap.h"
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#include "config.h"
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#if defined(HAVE_SYS_MMAN_H)
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#include "gdbsupport/selftest.h"
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#include "gdbsupport/gdb_unlinker.h"
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#include <unistd.h>
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namespace selftests {
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namespace scoped_mmap {
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/* Test that the file is unmapped. */
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static void
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test_destroy ()
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{
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void *mem;
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errno = 0;
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{
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::scoped_mmap smmap (nullptr, sysconf (_SC_PAGESIZE), PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
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mem = smmap.get ();
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SELF_CHECK (mem != nullptr);
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}
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SELF_CHECK (msync (mem, sysconf (_SC_PAGESIZE), 0) == -1 && errno == ENOMEM);
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}
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/* Test that the memory can be released. */
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static void
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test_release ()
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{
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void *mem;
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errno = 0;
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{
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::scoped_mmap smmap (nullptr, sysconf (_SC_PAGESIZE), PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
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mem = smmap.release ();
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SELF_CHECK (mem != nullptr);
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}
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SELF_CHECK (msync (mem, sysconf (_SC_PAGESIZE), 0) == 0 || errno != ENOMEM);
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munmap (mem, sysconf (_SC_PAGESIZE));
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}
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/* Run selftests. */
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static void
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run_tests ()
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{
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test_destroy ();
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test_release ();
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}
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} /* namespace scoped_mmap */
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namespace mmap_file
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{
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/* Test the standard usage of mmap_file. */
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static void
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test_normal ()
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{
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char filename[] = "scoped_mmapped_file-selftest-XXXXXX";
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{
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scoped_fd fd = gdb_mkostemp_cloexec (filename);
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SELF_CHECK (fd.get () >= 0);
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SELF_CHECK (write (fd.get (), "Hello!", 7) == 7);
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}
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gdb::unlinker unlink_test_file (filename);
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{
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::scoped_mmap m = ::mmap_file (filename);
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SELF_CHECK (m.get () != MAP_FAILED);
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SELF_CHECK (m.size () == 7);
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SELF_CHECK (0 == strcmp ((char *) m.get (), "Hello!"));
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}
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}
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/* Calling mmap_file with a non-existent file should throw an exception. */
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static void
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test_invalid_filename ()
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{
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bool threw = false;
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try {
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::scoped_mmap m = ::mmap_file ("/this/file/should/not/exist");
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} catch (gdb_exception &e) {
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threw = true;
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}
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SELF_CHECK (threw);
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}
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/* Run selftests. */
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static void
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run_tests ()
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{
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test_normal ();
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test_invalid_filename ();
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}
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} /* namespace mmap_file */
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} /* namespace selftests */
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#endif /* !defined(HAVE_SYS_MMAN_H) */
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void _initialize_scoped_mmap_selftests ();
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void
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_initialize_scoped_mmap_selftests ()
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{
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#if defined(HAVE_SYS_MMAN_H)
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selftests::register_test ("scoped_mmap",
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selftests::scoped_mmap::run_tests);
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selftests::register_test ("mmap_file",
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selftests::mmap_file::run_tests);
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#endif
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}
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