| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 15 Apr 2021 16:27:00 +0900
From: Masahiro Yamada <masahiroy@...nel.org>
To: linux-kbuild@...r.kernel.org
Cc: Janosch Frank <frankja@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ibm.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Alexei Starovoitov <ast@...nel.org>,
Andrii Nakryiko <andrii@...nel.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Daniel Borkmann <daniel@...earbox.net>,
Harish <harish@...ux.ibm.com>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>, Martin KaFai Lau <kafai@...com>,
Michael Ellerman <mpe@...erman.id.au>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Paul Mackerras <paulus@...ba.org>,
Shuah Khan <shuah@...nel.org>,
Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
bpf@...r.kernel.org, clang-built-linux@...glegroups.com,
kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
netdev@...r.kernel.org
Subject: [PATCH 2/2] tools: do not include scripts/Kbuild.include
Since commit d9f4ff50d2aa ("kbuild: spilt cc-option and friends to
scripts/Makefile.compiler"), some kselftests fail to build.
The tools/ directory opted out Kbuild, and went in a different
direction. They copy any kind of files to the tools/ directory
in order to do whatever they want to do in their world.
tools/build/Build.include mimics scripts/Kbuild.include, but some
tool Makefiles included the Kbuild one to import a feature that is
missing in tools/build/Build.include:
- Commit ec04aa3ae87b ("tools/thermal: tmon: use "-fstack-protector"
only if supported") included scripts/Kbuild.include from
tools/thermal/tmon/Makefile to import the cc-option macro.
- Commit c2390f16fc5b ("selftests: kvm: fix for compilers that do
not support -no-pie") included scripts/Kbuild.include from
tools/testing/selftests/kvm/Makefile to import the try-run macro.
- Commit 9cae4ace80ef ("selftests/bpf: do not ignore clang
failures") included scripts/Kbuild.include from
tools/testing/selftests/bpf/Makefile to import the .DELETE_ON_ERROR
target.
- Commit 0695f8bca93e ("selftests/powerpc: Handle Makefile for
unrecognized option") included scripts/Kbuild.include from
tools/testing/selftests/powerpc/pmu/ebb/Makefile to import the
try-run macro.
Copy what they want there, and stop including scripts/Kbuild.include
from the tool Makefiles.
Link: https://lore.kernel.org/lkml/86dadf33-70f7-a5ac-cb8c-64966d2f45a1@linux.ibm.com/
Fixes: d9f4ff50d2aa ("kbuild: spilt cc-option and friends to scripts/Makefile.compiler")
Reported-by: Janosch Frank <frankja@...ux.ibm.com>
Reported-by: Christian Borntraeger <borntraeger@...ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
---
tools/testing/selftests/bpf/Makefile | 3 ++-
tools/testing/selftests/kvm/Makefile | 12 +++++++++++-
.../selftests/powerpc/pmu/ebb/Makefile | 11 ++++++++++-
tools/thermal/tmon/Makefile | 19 +++++++++++++++++--
4 files changed, 40 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 044bfdcf5b74..d872b9f41543 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -1,5 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-include ../../../../scripts/Kbuild.include
include ../../../scripts/Makefile.arch
include ../../../scripts/Makefile.include
@@ -476,3 +475,5 @@ EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) \
prog_tests/tests.h map_tests/tests.h verifier/tests.h \
feature \
$(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32 bpf_gcc bpf_testmod.ko)
+
+.DELETE_ON_ERROR:
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index a6d61f451f88..8b45bc417d83 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -1,5 +1,15 @@
# SPDX-License-Identifier: GPL-2.0-only
-include ../../../../scripts/Kbuild.include
+
+TMPOUT = .tmp_$$$$
+
+try-run = $(shell set -e; \
+ TMP=$(TMPOUT)/tmp; \
+ mkdir -p $(TMPOUT); \
+ trap "rm -rf $(TMPOUT)" EXIT; \
+ if ($(1)) >/dev/null 2>&1; \
+ then echo "$(2)"; \
+ else echo "$(3)"; \
+ fi)
all:
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index af3df79d8163..d5d3e869df93 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -1,5 +1,4 @@
# SPDX-License-Identifier: GPL-2.0
-include ../../../../../../scripts/Kbuild.include
noarg:
$(MAKE) -C ../../
@@ -8,6 +7,16 @@ noarg:
CFLAGS += -m64
TMPOUT = $(OUTPUT)/TMPDIR/
+
+try-run = $(shell set -e; \
+ TMP=$(TMPOUT)/tmp; \
+ mkdir -p $(TMPOUT); \
+ trap "rm -rf $(TMPOUT)" EXIT; \
+ if ($(1)) >/dev/null 2>&1; \
+ then echo "$(2)"; \
+ else echo "$(3)"; \
+ fi)
+
# Toolchains may build PIE by default which breaks the assembly
no-pie-option := $(call try-run, echo 'int main() { return 0; }' | \
$(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile
index 59e417ec3e13..92a683e4866c 100644
--- a/tools/thermal/tmon/Makefile
+++ b/tools/thermal/tmon/Makefile
@@ -1,6 +1,21 @@
# SPDX-License-Identifier: GPL-2.0
-# We need this for the "cc-option" macro.
-include ../../../scripts/Kbuild.include
+
+TMPOUT = .tmp_$$$$
+
+try-run = $(shell set -e; \
+ TMP=$(TMPOUT)/tmp; \
+ mkdir -p $(TMPOUT); \
+ trap "rm -rf $(TMPOUT)" EXIT; \
+ if ($(1)) >/dev/null 2>&1; \
+ then echo "$(2)"; \
+ else echo "$(3)"; \
+ fi)
+
+__cc-option = $(call try-run,\
+ $(1) -Werror $(2) $(3) -c -x c /dev/null -o "$$TMP",$(3),$(4))
+
+cc-option = $(call __cc-option, $(CC),\
+ $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS),$(1),$(2))
VERSION = 1.0
--
2.27.0
Powered by blists - more mailing lists