perf test: Make tests its own library

Make the tests code its own library. This is done to avoid compiling
code twice, once for the perf tool and once for the perf python
module.

Signed-off-by: Ian Rogers <irogers@google.com>
Reviewed-by: James Clark <james.clark@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Gary Guo <gary@garyguo.net>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Wedson Almeida Filho <wedsonaf@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Cc: Alice Ryhl <aliceryhl@google.com>
Cc: Andrei Vagin <avagin@google.com>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Benno Lossin <benno.lossin@proton.me>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Andreas Hindborg <a.hindborg@samsung.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240625214117.953777-5-irogers@google.com

13 files changed, 115 insertions, 104 deletions

diff --git a/tools/perf/Build b/tools/perf/Build
index 16ed1357202ba..fddd45ab35b47 100644
--- a/tools/perf/Build
+++ b/tools/perf/Build
@@ -36,7 +36,7 @@ endif
 perf-$(CONFIG_LIBELF) += builtin-probe.o
 
 perf-y += bench/
-perf-y += tests/
+perf-test-y += tests/
 
 perf-y += perf.o
 
@@ -55,6 +55,7 @@ CFLAGS_builtin-report.o	   += -DDOCDIR="BUILD_STR($(srcdir_SQ)/Documentation)"
 
 perf-y += util/
 perf-y += arch/
+perf-test-y += arch/
 perf-ui-y += ui/
 perf-y += scripts/
 
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 9640c6ae1837c..9fa69dd0b4728 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -425,6 +425,9 @@ endif
 
 export PERL_PATH
 
+LIBPERF_TEST_IN := $(OUTPUT)perf-test-in.o
+LIBPERF_TEST := $(OUTPUT)libperf-test.a
+
 LIBPERF_UI_IN := $(OUTPUT)perf-ui-in.o
 LIBPERF_UI := $(OUTPUT)libperf-ui.a
 
@@ -435,7 +438,7 @@ PERFLIBS = $(LIBAPI) $(LIBPERF) $(LIBSUBCMD) $(LIBSYMBOL)
 ifdef LIBBPF_STATIC
   PERFLIBS += $(LIBBPF)
 endif
-PERFLIBS += $(LIBPERF_UI) $(LIBPMU_EVENTS)
+PERFLIBS += $(LIBPERF_TEST) $(LIBPERF_UI) $(LIBPMU_EVENTS)
 
 # We choose to avoid "if .. else if .. else .. endif endif"
 # because maintaining the nesting to match is a pain.  If
@@ -737,6 +740,12 @@ $(LIBPMU_EVENTS_IN): FORCE prepare
 $(LIBPMU_EVENTS): $(LIBPMU_EVENTS_IN)
 	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $<
 
+$(LIBPERF_TEST_IN): FORCE prepare
+	$(Q)$(MAKE) $(build)=perf-test
+
+$(LIBPERF_TEST): $(LIBPERF_TEST_IN)
+	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $<
+
 $(LIBPERF_UI_IN): FORCE prepare
 	$(Q)$(MAKE) $(build)=perf-ui
 
diff --git a/tools/perf/arch/Build b/tools/perf/arch/Build
index 688818844c113..6dd68c17924c4 100644
--- a/tools/perf/arch/Build
+++ b/tools/perf/arch/Build
@@ -1,2 +1,3 @@
 perf-y += common.o
 perf-y += $(SRCARCH)/
+perf-test-y += $(SRCARCH)/
diff --git a/tools/perf/arch/arm/Build b/tools/perf/arch/arm/Build
index 36222e64bbf7d..6b4fdec521220 100644
--- a/tools/perf/arch/arm/Build
+++ b/tools/perf/arch/arm/Build
@@ -1,2 +1,2 @@
 perf-y += util/
-perf-$(CONFIG_DWARF_UNWIND) += tests/
+perf-test-$(CONFIG_DWARF_UNWIND) += tests/
diff --git a/tools/perf/arch/arm/tests/Build b/tools/perf/arch/arm/tests/Build
index bc8e97380c826..599efa5457271 100644
--- a/tools/perf/arch/arm/tests/Build
+++ b/tools/perf/arch/arm/tests/Build
@@ -1,5 +1,5 @@
-perf-y += regs_load.o
-perf-y += dwarf-unwind.o
-perf-y += vectors-page.o
+perf-test-y += regs_load.o
+perf-test-y += dwarf-unwind.o
+perf-test-y += vectors-page.o
 
-perf-y += arch-tests.o
+perf-test-y += arch-tests.o
diff --git a/tools/perf/arch/arm64/Build b/tools/perf/arch/arm64/Build
index a7dd46a5b6785..58b2d965ed869 100644
--- a/tools/perf/arch/arm64/Build
+++ b/tools/perf/arch/arm64/Build
@@ -1,2 +1,2 @@
 perf-y += util/
-perf-y += tests/
+perf-test-y += tests/
diff --git a/tools/perf/arch/arm64/tests/Build b/tools/perf/arch/arm64/tests/Build
index e337c09e7f567..d44c9de92d425 100644
--- a/tools/perf/arch/arm64/tests/Build
+++ b/tools/perf/arch/arm64/tests/Build
@@ -1,5 +1,5 @@
-perf-y += regs_load.o
-perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
+perf-test-y += regs_load.o
+perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
 
-perf-y += arch-tests.o
-perf-y += cpuid-match.o
+perf-test-y += arch-tests.o
+perf-test-y += cpuid-match.o
diff --git a/tools/perf/arch/powerpc/Build b/tools/perf/arch/powerpc/Build
index a7dd46a5b6785..58b2d965ed869 100644
--- a/tools/perf/arch/powerpc/Build
+++ b/tools/perf/arch/powerpc/Build
@@ -1,2 +1,2 @@
 perf-y += util/
-perf-y += tests/
+perf-test-y += tests/
diff --git a/tools/perf/arch/powerpc/tests/Build b/tools/perf/arch/powerpc/tests/Build
index 3526ab0af9f9a..2750269506452 100644
--- a/tools/perf/arch/powerpc/tests/Build
+++ b/tools/perf/arch/powerpc/tests/Build
@@ -1,4 +1,4 @@
-perf-$(CONFIG_DWARF_UNWIND) += regs_load.o
-perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
+perf-test-$(CONFIG_DWARF_UNWIND) += regs_load.o
+perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
 
-perf-y += arch-tests.o
+perf-test-y += arch-tests.o
diff --git a/tools/perf/arch/x86/Build b/tools/perf/arch/x86/Build
index ed37013b4289b..132cf8beaca25 100644
--- a/tools/perf/arch/x86/Build
+++ b/tools/perf/arch/x86/Build
@@ -1,5 +1,5 @@
 perf-y += util/
-perf-y += tests/
+perf-test-y += tests/
 
 ifdef SHELLCHECK
   SHELL_TESTS := entry/syscalls/syscalltbl.sh
@@ -13,4 +13,4 @@ $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
 
-perf-y += $(TEST_LOGS)
+perf-test-y += $(TEST_LOGS)
diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build
index c1e3b7d395544..3227053f3355f 100644
--- a/tools/perf/arch/x86/tests/Build
+++ b/tools/perf/arch/x86/tests/Build
@@ -1,15 +1,15 @@
-perf-$(CONFIG_DWARF_UNWIND) += regs_load.o
-perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
+perf-test-$(CONFIG_DWARF_UNWIND) += regs_load.o
+perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
 
-perf-y += arch-tests.o
-perf-y += sample-parsing.o
-perf-y += hybrid.o
-perf-$(CONFIG_AUXTRACE) += intel-pt-test.o
+perf-test-y += arch-tests.o
+perf-test-y += sample-parsing.o
+perf-test-y += hybrid.o
+perf-test-$(CONFIG_AUXTRACE) += intel-pt-test.o
 ifeq ($(CONFIG_EXTRA_TESTS),y)
-perf-$(CONFIG_AUXTRACE) += insn-x86.o
+perf-test-$(CONFIG_AUXTRACE) += insn-x86.o
 endif
-perf-$(CONFIG_X86_64) += bp-modify.o
-perf-y += amd-ibs-via-core-pmu.o
+perf-test-$(CONFIG_X86_64) += bp-modify.o
+perf-test-y += amd-ibs-via-core-pmu.o
 
 ifdef SHELLCHECK
   SHELL_TESTS := gen-insn-x86-dat.sh
@@ -23,4 +23,4 @@ $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
 
-perf-y += $(TEST_LOGS)
+perf-test-y += $(TEST_LOGS)
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index c7f9d96760959..5671ee5300195 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -1,82 +1,82 @@
 # SPDX-License-Identifier: GPL-2.0
 
-perf-y += builtin-test.o
-perf-y += tests-scripts.o
-perf-y += parse-events.o
-perf-y += dso-data.o
-perf-y += attr.o
-perf-y += vmlinux-kallsyms.o
-perf-$(CONFIG_LIBTRACEEVENT) += openat-syscall.o
-perf-$(CONFIG_LIBTRACEEVENT) += openat-syscall-all-cpus.o
-perf-$(CONFIG_LIBTRACEEVENT) += openat-syscall-tp-fields.o
-perf-$(CONFIG_LIBTRACEEVENT) += mmap-basic.o
-perf-y += perf-record.o
-perf-y += evsel-roundtrip-name.o
-perf-$(CONFIG_LIBTRACEEVENT) += evsel-tp-sched.o
-perf-y += fdarray.o
-perf-y += pmu.o
-perf-y += pmu-events.o
-perf-y += hists_common.o
-perf-y += hists_link.o
-perf-y += hists_filter.o
-perf-y += hists_output.o
-perf-y += hists_cumulate.o
-perf-y += python-use.o
-perf-y += bp_signal.o
-perf-y += bp_signal_overflow.o
-perf-y += bp_account.o
-perf-y += wp.o
-perf-y += task-exit.o
-perf-y += sw-clock.o
-perf-y += mmap-thread-lookup.o
-perf-y += thread-maps-share.o
-perf-$(CONFIG_LIBTRACEEVENT) += switch-tracking.o
-perf-y += keep-tracking.o
-perf-y += code-reading.o
-perf-y += sample-parsing.o
-perf-y += parse-no-sample-id-all.o
-perf-y += kmod-path.o
-perf-y += thread-map.o
-perf-y += topology.o
-perf-y += mem.o
-perf-y += cpumap.o
-perf-y += stat.o
-perf-y += event_update.o
-perf-y += event-times.o
-perf-y += expr.o
-perf-y += backward-ring-buffer.o
-perf-y += sdt.o
-perf-y += is_printable_array.o
-perf-y += bitmap.o
-perf-y += perf-hooks.o
-perf-y += unit_number__scnprintf.o
-perf-y += mem2node.o
-perf-y += maps.o
-perf-y += time-utils-test.o
-perf-y += genelf.o
-perf-y += api-io.o
-perf-y += demangle-java-test.o
-perf-y += demangle-ocaml-test.o
-perf-y += pfm.o
-perf-y += parse-metric.o
-perf-y += pe-file-parsing.o
-perf-y += expand-cgroup.o
-perf-y += perf-time-to-tsc.o
-perf-y += dlfilter-test.o
-perf-y += sigtrap.o
-perf-y += event_groups.o
-perf-y += symbols.o
-perf-y += util.o
+perf-test-y += builtin-test.o
+perf-test-y += tests-scripts.o
+perf-test-y += parse-events.o
+perf-test-y += dso-data.o
+perf-test-y += attr.o
+perf-test-y += vmlinux-kallsyms.o
+perf-test-$(CONFIG_LIBTRACEEVENT) += openat-syscall.o
+perf-test-$(CONFIG_LIBTRACEEVENT) += openat-syscall-all-cpus.o
+perf-test-$(CONFIG_LIBTRACEEVENT) += openat-syscall-tp-fields.o
+perf-test-$(CONFIG_LIBTRACEEVENT) += mmap-basic.o
+perf-test-y += perf-record.o
+perf-test-y += evsel-roundtrip-name.o
+perf-test-$(CONFIG_LIBTRACEEVENT) += evsel-tp-sched.o
+perf-test-y += fdarray.o
+perf-test-y += pmu.o
+perf-test-y += pmu-events.o
+perf-test-y += hists_common.o
+perf-test-y += hists_link.o
+perf-test-y += hists_filter.o
+perf-test-y += hists_output.o
+perf-test-y += hists_cumulate.o
+perf-test-y += python-use.o
+perf-test-y += bp_signal.o
+perf-test-y += bp_signal_overflow.o
+perf-test-y += bp_account.o
+perf-test-y += wp.o
+perf-test-y += task-exit.o
+perf-test-y += sw-clock.o
+perf-test-y += mmap-thread-lookup.o
+perf-test-y += thread-maps-share.o
+perf-test-$(CONFIG_LIBTRACEEVENT) += switch-tracking.o
+perf-test-y += keep-tracking.o
+perf-test-y += code-reading.o
+perf-test-y += sample-parsing.o
+perf-test-y += parse-no-sample-id-all.o
+perf-test-y += kmod-path.o
+perf-test-y += thread-map.o
+perf-test-y += topology.o
+perf-test-y += mem.o
+perf-test-y += cpumap.o
+perf-test-y += stat.o
+perf-test-y += event_update.o
+perf-test-y += event-times.o
+perf-test-y += expr.o
+perf-test-y += backward-ring-buffer.o
+perf-test-y += sdt.o
+perf-test-y += is_printable_array.o
+perf-test-y += bitmap.o
+perf-test-y += perf-hooks.o
+perf-test-y += unit_number__scnprintf.o
+perf-test-y += mem2node.o
+perf-test-y += maps.o
+perf-test-y += time-utils-test.o
+perf-test-y += genelf.o
+perf-test-y += api-io.o
+perf-test-y += demangle-java-test.o
+perf-test-y += demangle-ocaml-test.o
+perf-test-y += pfm.o
+perf-test-y += parse-metric.o
+perf-test-y += pe-file-parsing.o
+perf-test-y += expand-cgroup.o
+perf-test-y += perf-time-to-tsc.o
+perf-test-y += dlfilter-test.o
+perf-test-y += sigtrap.o
+perf-test-y += event_groups.o
+perf-test-y += symbols.o
+perf-test-y += util.o
 
 ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc))
-perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
+perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
 endif
 
 CFLAGS_attr.o         += -DBINDIR="BUILD_STR($(bindir_SQ))" -DPYTHON="BUILD_STR($(PYTHON_WORD))"
 CFLAGS_python-use.o   += -DPYTHONPATH="BUILD_STR($(OUTPUT)python)" -DPYTHON="BUILD_STR($(PYTHON_WORD))"
 CFLAGS_dwarf-unwind.o += -fno-optimize-sibling-calls
 
-perf-y += workloads/
+perf-test-y += workloads/
 
 ifdef SHELLCHECK
   SHELL_TESTS := $(shell find tests/shell -executable -type f -name '*.sh')
@@ -90,4 +90,4 @@ $(OUTPUT)%.shellcheck_log: %
 	$(call rule_mkdir)
 	$(Q)$(call echo-cmd,test)shellcheck -a -S warning "$<" > $@ || (cat $@ && rm $@ && false)
 
-perf-y += $(TEST_LOGS)
+perf-test-y += $(TEST_LOGS)
diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build
index a1f34d5861e36..48bf0d3b0f3d6 100644
--- a/tools/perf/tests/workloads/Build
+++ b/tools/perf/tests/workloads/Build
@@ -1,11 +1,11 @@
 # SPDX-License-Identifier: GPL-2.0
 
-perf-y += noploop.o
-perf-y += thloop.o
-perf-y += leafloop.o
-perf-y += sqrtloop.o
-perf-y += brstack.o
-perf-y += datasym.o
+perf-test-y += noploop.o
+perf-test-y += thloop.o
+perf-test-y += leafloop.o
+perf-test-y += sqrtloop.o
+perf-test-y += brstack.o
+perf-test-y += datasym.o
 
 CFLAGS_sqrtloop.o         = -g -O0 -fno-inline -U_FORTIFY_SOURCE
 CFLAGS_leafloop.o         = -g -O0 -fno-inline -fno-omit-frame-pointer -U_FORTIFY_SOURCE