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1b69346e7a
Add a test to check function symbols do not overlap and are not zero length. The main motivation for the test is to make it easier to review changes to PLT symbol synthesis i.e. changes to dso__synthesize_plt_symbols(). By default the test uses the perf executable as a test DSO, but a specific DSO can be specified via a new perf test option "--dso". The test is useful in the following ways: - Any DSO can be tested, even ones that do not run on the current architecture. For example, using cross-compiled DSOs to see how well perf handles different architectures. - With verbose > 1 (e.g. -vv), all the symbols are printed, which makes it easier to see issues. - perf removes duplicate symbols and expands zero-length symbols to reach the next symbol, however that is done before adding synthesized symbols, so the test is checking those also. Example: $ perf test -v Symbols 74: Symbols : --- start --- test child forked, pid 154918 Testing /home/user/bin/perf Overlapping symbols: 7d000-7f3a0 g _init 7d030-7d040 g __printf_chk@plt test child finished with -1 ---- end ---- Symbols: FAILED! Note the test fails because perf expands the _init symbol over the PLT because there are no PLT symbols at that point, but then dso__synthesize_plt_symbols() creates them. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Acked-by: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20230120123456.12449-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
109 lines
3.3 KiB
Text
109 lines
3.3 KiB
Text
# SPDX-License-Identifier: GPL-2.0
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perf-y += builtin-test.o
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perf-y += builtin-test-list.o
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perf-y += parse-events.o
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perf-y += dso-data.o
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perf-y += attr.o
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perf-y += vmlinux-kallsyms.o
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perf-$(CONFIG_LIBTRACEEVENT) += openat-syscall.o
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perf-$(CONFIG_LIBTRACEEVENT) += openat-syscall-all-cpus.o
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perf-$(CONFIG_LIBTRACEEVENT) += openat-syscall-tp-fields.o
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perf-$(CONFIG_LIBTRACEEVENT) += mmap-basic.o
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perf-y += perf-record.o
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perf-y += evsel-roundtrip-name.o
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perf-$(CONFIG_LIBTRACEEVENT) += evsel-tp-sched.o
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perf-y += fdarray.o
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perf-y += pmu.o
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perf-y += pmu-events.o
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perf-y += hists_common.o
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perf-y += hists_link.o
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perf-y += hists_filter.o
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perf-y += hists_output.o
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perf-y += hists_cumulate.o
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perf-y += python-use.o
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perf-y += bp_signal.o
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perf-y += bp_signal_overflow.o
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perf-y += bp_account.o
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perf-y += wp.o
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perf-y += task-exit.o
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perf-y += sw-clock.o
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perf-y += mmap-thread-lookup.o
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perf-y += thread-maps-share.o
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perf-$(CONFIG_LIBTRACEEVENT) += switch-tracking.o
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perf-y += keep-tracking.o
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perf-y += code-reading.o
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perf-y += sample-parsing.o
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perf-y += parse-no-sample-id-all.o
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perf-y += kmod-path.o
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perf-y += thread-map.o
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perf-y += llvm.o llvm-src-base.o llvm-src-kbuild.o llvm-src-prologue.o llvm-src-relocation.o
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perf-y += bpf.o
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perf-y += topology.o
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perf-y += mem.o
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perf-y += cpumap.o
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perf-y += stat.o
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perf-y += event_update.o
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perf-y += event-times.o
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perf-y += expr.o
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perf-y += backward-ring-buffer.o
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perf-y += sdt.o
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perf-y += is_printable_array.o
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perf-y += bitmap.o
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perf-y += perf-hooks.o
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perf-y += clang.o
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perf-y += unit_number__scnprintf.o
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perf-y += mem2node.o
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perf-y += maps.o
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perf-y += time-utils-test.o
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perf-y += genelf.o
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perf-y += api-io.o
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perf-y += demangle-java-test.o
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perf-y += demangle-ocaml-test.o
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perf-y += pfm.o
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perf-y += parse-metric.o
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perf-y += pe-file-parsing.o
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perf-y += expand-cgroup.o
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perf-y += perf-time-to-tsc.o
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perf-y += dlfilter-test.o
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perf-y += sigtrap.o
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perf-y += event_groups.o
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perf-y += symbols.o
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$(OUTPUT)tests/llvm-src-base.c: tests/bpf-script-example.c tests/Build
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$(call rule_mkdir)
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$(Q)echo '#include <tests/llvm.h>' > $@
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$(Q)echo 'const char test_llvm__bpf_base_prog[] =' >> $@
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$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
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$(Q)echo ';' >> $@
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$(OUTPUT)tests/llvm-src-kbuild.c: tests/bpf-script-test-kbuild.c tests/Build
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$(call rule_mkdir)
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$(Q)echo '#include <tests/llvm.h>' > $@
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$(Q)echo 'const char test_llvm__bpf_test_kbuild_prog[] =' >> $@
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$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
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$(Q)echo ';' >> $@
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$(OUTPUT)tests/llvm-src-prologue.c: tests/bpf-script-test-prologue.c tests/Build
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$(call rule_mkdir)
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$(Q)echo '#include <tests/llvm.h>' > $@
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$(Q)echo 'const char test_llvm__bpf_test_prologue_prog[] =' >> $@
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$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
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$(Q)echo ';' >> $@
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$(OUTPUT)tests/llvm-src-relocation.c: tests/bpf-script-test-relocation.c tests/Build
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$(call rule_mkdir)
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$(Q)echo '#include <tests/llvm.h>' > $@
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$(Q)echo 'const char test_llvm__bpf_test_relocation[] =' >> $@
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$(Q)sed -e 's/"/\\"/g' -e 's/\(.*\)/"\1\\n"/g' $< >> $@
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$(Q)echo ';' >> $@
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ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc))
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perf-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o
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endif
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CFLAGS_attr.o += -DBINDIR="BUILD_STR($(bindir_SQ))" -DPYTHON="BUILD_STR($(PYTHON_WORD))"
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CFLAGS_python-use.o += -DPYTHONPATH="BUILD_STR($(OUTPUT)python)" -DPYTHON="BUILD_STR($(PYTHON_WORD))"
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CFLAGS_dwarf-unwind.o += -fno-optimize-sibling-calls
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perf-y += workloads/
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