On 5/31/24 12:38 PM, John Hubbard wrote:
Hi,
Dave Hansen, Muhammad Usama Anjum, here is the combined series that we
discussed yesterday [1].
Hi Dave, Shuah,
Are either of you planning to take this series? I ask because I have a
very slightly overlapping series that enhances the LLVM/clang checks,
that I'm about to post. And I'm not sure if I should try to include
a small fix that would apply to patch 5/7 here.
(This is not urgent, because it's merely a deferral of adding LLVM/clang
support to these kselftests.)
thanks,
--
John Hubbard
NVIDIA
As I mentioned then, this is a bit intrusive--but no more than
necessary, IMHO. Specifically, it moves some clang-un-inlineable things
out to "pure" assembly code files.
I've tested this by building with clang, then running each binary on my
x86_64 test system with today's 6.10-rc1, and comparing the console and
dmesg output to a gcc-based build without these patches applied. Aside
from timestamps and virtual addresses, it looks identical.
Earlier cover letter:
Just a bunch of build and warnings fixes that show up when building with
clang. Some of these depend on each other, so I'm sending them as a
series.
Changes since v2:
1) Dropped my test_FISTTP.c patch, and picked up Muhammad's fix instead,
seeing as how that was posted first.
2) Updated patch descriptions to reflect that Valentin Obst's build fix
for LLVM [1] has already been merged into Linux main.
3) Minor wording and typo corrections in the commit logs throughout.
Changes since the first version:
1) Rebased onto Linux 6.10-rc1
Enjoy!
[1] https://lore.kernel.org/44428518-4d21-4de7-8587-04eceefb330d@xxxxxxxxxx
thanks,
John Hubbard
John Hubbard (6):
selftests/x86: fix Makefile dependencies to work with clang
selftests/x86: build fsgsbase_restore.c with clang
selftests/x86: build sysret_rip.c with clang
selftests/x86: avoid -no-pie warnings from clang during compilation
selftests/x86: remove (or use) unused variables and functions
selftests/x86: fix printk warnings reported by clang
Muhammad Usama Anjum (1):
selftests: x86: test_FISTTP: use fisttps instead of ambiguous fisttp
tools/testing/selftests/x86/Makefile | 31 +++++++++++++++----
tools/testing/selftests/x86/amx.c | 16 ----------
.../testing/selftests/x86/clang_helpers_32.S | 11 +++++++
.../testing/selftests/x86/clang_helpers_64.S | 28 +++++++++++++++++
tools/testing/selftests/x86/fsgsbase.c | 6 ----
.../testing/selftests/x86/fsgsbase_restore.c | 11 +++----
tools/testing/selftests/x86/sigreturn.c | 2 +-
.../testing/selftests/x86/syscall_arg_fault.c | 1 -
tools/testing/selftests/x86/sysret_rip.c | 20 ++++--------
tools/testing/selftests/x86/test_FISTTP.c | 8 ++---
tools/testing/selftests/x86/test_vsyscall.c | 15 +++------
tools/testing/selftests/x86/vdso_restorer.c | 2 ++
12 files changed, 87 insertions(+), 64 deletions(-)
create mode 100644 tools/testing/selftests/x86/clang_helpers_32.S
create mode 100644 tools/testing/selftests/x86/clang_helpers_64.S
base-commit: 4a4be1ad3a6efea16c56615f31117590fd881358
