diff options
| author | Naveen N Rao <naveen@kernel.org> | 2023-05-30 15:08:21 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-10-20 17:46:33 +1100 |
| commit | d42f55e8ae741540d0d2ebab8ff02f68fb0c802f (patch) | |
| tree | fca5b5c32daf6f0351d924f7787f0fa63731996b | |
| parent | 269d79fb30f6b2419b8a67d99d8bdf58ced44d72 (diff) | |
powerpc/tools: Pass -mabi=elfv2 to gcc-check-mprofile-kernel.sh
Toolchains don't always default to the ELFv2 ABI. This is true with at
least the kernel.org toolchains. As such, pass -mabi=elfv2 explicitly to
ensure that we are testing against the correct compiler output.
Signed-off-by: Naveen N Rao <naveen@kernel.org>
[mpe: Tweak comment wording]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230530093821.298590-1-naveen@kernel.org
| -rwxr-xr-x | arch/powerpc/tools/gcc-check-mprofile-kernel.sh | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh index a31a56016c09..73e331e7660e 100755 --- a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh +++ b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh @@ -7,21 +7,20 @@ set -o pipefail # To debug, uncomment the following line # set -x -# -mprofile-kernel is only supported on 64-bit, so this should not be invoked -# for 32-bit. We pass in -m64 explicitly, and -mbig-endian and -mlittle-endian -# are passed in from Kconfig, which takes care of toolchains defaulting to -# other targets. +# -mprofile-kernel is only supported on 64-bit with ELFv2, so this should not +# be invoked for other targets. Therefore we can pass in -m64 and -mabi +# explicitly, to take care of toolchains defaulting to other targets. # Test whether the compile option -mprofile-kernel exists and generates # profiling code (ie. a call to _mcount()). echo "int func() { return 0; }" | \ - $* -m64 -S -x c -O2 -p -mprofile-kernel - -o - \ + $* -m64 -mabi=elfv2 -S -x c -O2 -p -mprofile-kernel - -o - \ 2> /dev/null | grep -q "_mcount" # Test whether the notrace attribute correctly suppresses calls to _mcount(). echo -e "#include <linux/compiler.h>\nnotrace int func() { return 0; }" | \ - $* -m64 -S -x c -O2 -p -mprofile-kernel - -o - \ + $* -m64 -mabi=elfv2 -S -x c -O2 -p -mprofile-kernel - -o - \ 2> /dev/null | grep -q "_mcount" && \ exit 1 |