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| author |   Nathan Chancellor <nathan@kernel.org> | 2024-10-09 12:26:09 -0700 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2024-10-23 21:11:55 +1100 |
| commit | bee08a9e6ab03caf14481d97b35a258400ffab8f (patch) | |
| tree | a905961056dcb0f974019e3a8d9c468110e41bc8 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | powerpc: Fix stack protector Kconfig test for clang (diff) | |
| download | wireguard-linux-bee08a9e6ab03caf14481d97b35a258400ffab8f.tar.xz wireguard-linux-bee08a9e6ab03caf14481d97b35a258400ffab8f.zip | |
powerpc: Adjust adding stack protector flags to KBUILD_CLAGS for clang
After fixing the HAVE_STACKPROTECTER checks for clang's in-progress
per-task stack protector support [1], the build fails during prepare0
because '-mstack-protector-guard-offset' has not been added to
KBUILD_CFLAGS yet but the other '-mstack-protector-guard' flags have.
clang: error: '-mstack-protector-guard=tls' is used without '-mstack-protector-guard-offset', and there is no default
clang: error: '-mstack-protector-guard=tls' is used without '-mstack-protector-guard-offset', and there is no default
make[4]: *** [scripts/Makefile.build:229: scripts/mod/empty.o] Error 1
make[4]: *** [scripts/Makefile.build:102: scripts/mod/devicetable-offsets.s] Error 1
Mirror other architectures and add all '-mstack-protector-guard' flags
to KBUILD_CFLAGS atomically during stack_protector_prepare, which
resolves the issue and allows clang's implementation to fully work with
the kernel.
Cc: stable@vger.kernel.org # 6.1+
Link: https://github.com/llvm/llvm-project/pull/110928 [1]
Reviewed-by: Keith Packard <keithp@keithp.com>
Tested-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://patch.msgid.link/20241009-powerpc-fix-stackprotector-test-clang-v2-2-12fb86b31857@kernel.org
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions