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| author | Kees Cook <keescook@chromium.org> | 2022-02-23 19:32:10 -0800 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2022-03-03 20:38:56 -0800 |
| commit | 9e1a3ce0a952450a1163cc93ab1df6d4fa8c8155 (patch) | |
| tree | cb6df50436b43afd7c5ea497c81521a26291df19 /fs/Kconfig.binfmt | |
| parent | 4f0bfdfd8323e5b461fc1042143a1097dba9fced (diff) | |
| download | lwn-9e1a3ce0a952450a1163cc93ab1df6d4fa8c8155.tar.gz lwn-9e1a3ce0a952450a1163cc93ab1df6d4fa8c8155.zip | |
binfmt_elf: Introduce KUnit test
Adds simple KUnit test for some binfmt_elf internals: specifically a
regression test for the problem fixed by commit 8904d9cd90ee ("ELF:
fix overflow in total mapping size calculation").
$ ./tools/testing/kunit/kunit.py run --arch x86_64 \
--kconfig_add CONFIG_IA32_EMULATION=y '*binfmt_elf'
...
[19:41:08] ================== binfmt_elf (1 subtest) ==================
[19:41:08] [PASSED] total_mapping_size_test
[19:41:08] =================== [PASSED] binfmt_elf ====================
[19:41:08] ============== compat_binfmt_elf (1 subtest) ===============
[19:41:08] [PASSED] total_mapping_size_test
[19:41:08] ================ [PASSED] compat_binfmt_elf ================
[19:41:08] ============================================================
[19:41:08] Testing complete. Passed: 2, Failed: 0, Crashed: 0, Skipped: 0, Errors: 0
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: David Gow <davidgow@google.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Magnus Groß" <magnus.gross@rwth-aachen.de>
Cc: kunit-dev@googlegroups.com
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
v1: https://lore.kernel.org/lkml/20220224054332.1852813-1-keescook@chromium.org
v2:
- improve commit log
- fix comment URL (Daniel)
- drop redundant KUnit Kconfig help info (Daniel)
- note in Kconfig help that COMPAT builds add a compat test (David)
Diffstat (limited to 'fs/Kconfig.binfmt')
| -rw-r--r-- | fs/Kconfig.binfmt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt index 4d5ae61580aa..f7065e825b7f 100644 --- a/fs/Kconfig.binfmt +++ b/fs/Kconfig.binfmt @@ -28,6 +28,16 @@ config BINFMT_ELF ld.so (check the file <file:Documentation/Changes> for location and latest version). +config BINFMT_ELF_KUNIT_TEST + bool "Build KUnit tests for ELF binary support" if !KUNIT_ALL_TESTS + depends on KUNIT=y && BINFMT_ELF=y + default KUNIT_ALL_TESTS + help + This builds the ELF loader KUnit tests, which try to gather + prior bug fixes into a regression test collection. This is really + only needed for debugging. Note that with CONFIG_COMPAT=y, the + compat_binfmt_elf KUnit test is also created. + config COMPAT_BINFMT_ELF def_bool y depends on COMPAT && BINFMT_ELF |