diff options
| author | Leo Yan <leo.yan@arm.com> | 2025-10-06 17:21:29 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-10-06 16:49:25 -0300 |
| commit | 9ec46fc9380329de9dfd70de521e9da97cb4dfa8 (patch) | |
| tree | fa92815b06147fd412cc73b25a4a38d800f0542e | |
| parent | 244a1ac76a671f100321ac2563b002b0354cbf42 (diff) | |
perf test coresight: Dismiss clang warning for unroll loop thread
clang-18.1.3 on Ubuntu 24.04.2 reports warning:
unroll_loop_thread.c:35:25: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
35 | : /* in */ [in] "r" (in)
| ^
unroll_loop_thread.c:39:1: warning: non-void function does not return a value [-Wreturn-type]
39 | }
| ^
Use the modifier "w" for 32-bit register access and return NULL at the
end of thread function.
Signed-off-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20251006-perf_build_android_ndk-v3-7-4305590795b2@arm.com
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: James Clark <james.clark@linaro.org>
Cc: linux-riscv@lists.infradead.org
Cc: llvm@lists.linux.dev
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loop_thread.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loop_thread.c b/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loop_thread.c index 0fc7bf1a25af..8f4e1c985ca3 100644 --- a/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loop_thread.c +++ b/tools/perf/tests/shell/coresight/unroll_loop_thread/unroll_loop_thread.c @@ -20,7 +20,7 @@ static void *thrfn(void *arg) for (i = 0; i < 10000; i++) { asm volatile ( // force an unroll of thia add instruction so we can test long runs of code -#define SNIP1 "add %[in], %[in], #1\n" +#define SNIP1 "add %w[in], %w[in], #1\n" // 10 #define SNIP2 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 SNIP1 // 100 @@ -36,6 +36,8 @@ static void *thrfn(void *arg) : /* clobber */ ); } + + return NULL; } static pthread_t new_thr(void *(*fn) (void *arg), void *arg) |