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linux/tools/perf/tests
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Arnaldo Carvalho de Melo 8a45065958 perf machine: Propagate machine__init() error to callers 
machine__init() always returns 0 even when memory allocation fails,
because commit 81f981d7ec ("perf machine: Free root_dir in
machine__init() error path") introduced 'int err = -ENOMEM' and an
error cleanup path but left the final 'return 0' instead of
'return err'.

Fix by returning err, check the return value in __machine__new_host()
which was ignoring it, and change machines__init() from void to int so
it too can propagate the error to perf_session__new(), aslr_tool__init()
and test callers.

The error cleanup also used zfree(&machine->kmaps), but kmaps is a
refcounted maps structure — use maps__zput() to properly drop the
reference, matching machine__exit().

Move dsos__init() and threads__init() before the first fallible
allocation (maps__new) so that machine__exit() is safe to call on
any machine struct that machine__init() touched, even on early failure.

Fixes: 81f981d7ec ("perf machine: Free root_dir in machine__init() error path")
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Assisted-by: Claude:claude-opus-4.6
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-06-17 09:21:03 -03:00
..
config-fragments perf tools: Enable configs required for test_uprobe_from_different_cu.sh 2024-04-17 12:21:39 -03:00
shell perf test: Add inject ASLR test 2026-06-15 14:33:49 -03:00
workloads perf test: Compile named_threads workload with -O0 2026-06-11 21:14:30 -03:00
api-io.c perf tests api-io: Use zfree() to reduce chances of use after free 2023-04-12 10:14:58 -03:00
backward-ring-buffer.c perf target: Remove uid from target 2025-06-09 11:18:18 -07:00
bitmap.c libperf cpumap: Make index and nr types unsigned 2026-04-01 14:50:53 -07:00
bp_account.c perf tests bp_account: Fix leaked file descriptor 2025-07-11 12:05:02 -07:00
bp_signal_overflow.c perf parse-events: Add default_breakpoint_len helper 2024-09-04 09:49:09 -03:00
bp_signal.c perf tools: Make more global variables static 2026-04-08 19:21:04 -07:00
Build perf tests: Add test for uncore event sorting 2026-05-20 18:23:55 -03:00
builtin-test.c perf test: Truncate printed test descriptions dynamically to avoid terminal wrapping 2026-06-11 12:05:26 -03:00
code-reading.c perf tools: Fix uninitialized pathname on uncompressed fallback in filename__decompress() 2026-06-10 18:56:01 -03:00
cpumap.c libperf cpumap: Make index and nr types unsigned 2026-04-01 14:50:53 -07:00
demangle-java-test.c perf test demangle-java: Don't segv if demangling fails 2025-05-28 10:12:47 -03:00
demangle-ocaml-test.c perf test demangle-ocaml: Switch to using dso__demangle_sym() 2025-05-09 17:03:09 -03:00
demangle-rust-v0-test.c perf test demangle-rust: Add Rust demangling test 2025-05-09 17:01:57 -03:00
dlfilter-test.c perf event: Fix size of synthesized sample with branch stacks 2026-05-20 16:11:30 -03:00
dso-data.c perf tools: Make more global variables static 2026-04-08 19:21:04 -07:00
dwarf-unwind.c perf machine: Explicitly pass in host perf_env 2025-07-25 10:37:57 -07:00
event_groups.c perf test: Update event_groups test to use instructions 2025-01-18 10:32:57 -08:00
event_update.c perf evlist: Improve default event for s390 2026-03-19 14:42:46 -07:00
event-times.c perf thread_map: Remove uid options 2025-06-09 11:18:18 -07:00
evsel-roundtrip-name.c perf evsel: Use evsel__name_is() helper 2024-04-03 11:48:56 -03:00
evsel-tp-sched.c perf build: Include libtraceevent headers directly indicated by pkg-config 2024-11-08 22:42:57 -08:00
expand-cgroup.c perf evlist: Improve default event for s390 2026-03-19 14:42:46 -07:00
expr.c perf test expr: Fix system_tsc_freq for only x86 2024-12-11 09:19:44 -08:00
fdarray.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
genelf.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
hists_common.c perf dso: Add reference count checking and accessor functions 2024-05-06 15:28:49 -03:00
hists_common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hists_cumulate.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
hists_filter.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
hists_link.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
hists_output.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
hwmon_pmu.c perf tests hwmon_pmu: Use PRIu64 + (uint64_t) cast for a __u64 field to work more widely 2026-05-28 18:31:50 -03:00
is_printable_array.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
kallsyms-split.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
keep-tracking.c perf test: Switch cycles event to cpu-cycles 2025-10-15 23:59:12 +09:00
kmod-path.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
make perf data ctf: replace libbabeltrace with babeltrace2-ctf-writer 2026-06-04 17:34:52 -03:00
maps.c perf test maps: Additional maps__fixup_overlap_and_insert tests 2025-11-19 16:20:15 -08:00
mem.c perf mem-info: Add reference count checking 2024-05-07 18:06:44 -03:00
mem2node.c libperf cpumap: Make index and nr types unsigned 2026-04-01 14:50:53 -07:00
mmap-basic.c perf tests: Sort includes and add missed explicit dependencies 2026-05-27 08:20:31 -03:00
mmap-thread-lookup.c perf machine: Explicitly pass in host perf_env 2025-07-25 10:37:57 -07:00
openat-syscall-all-cpus.c libperf cpumap: Make index and nr types unsigned 2026-04-01 14:50:53 -07:00
openat-syscall-tp-fields.c perf evsel: Refactor evsel tracepoint sample accessors perf_sample 2026-05-20 16:35:59 -03:00
openat-syscall.c perf thread_map: Remove uid options 2025-06-09 11:18:18 -07:00
parse-events.c perf test: Fix ratio_to_prev event parsing test 2026-04-02 12:51:10 -07:00
parse-metric.c perf test parse-metric: Ensure aggregate counts appear to have run 2026-02-08 11:30:01 -03:00
parse-no-sample-id-all.c perf session: Validate HEADER_ATTR attr.size before swapping 2026-05-29 11:44:32 -03:00
pe-file-parsing.c perf tools: Don't read build-ids from non-regular files 2025-11-26 10:13:38 -08:00
pe-file.c perf tests: Add test for PE binary format support 2020-09-04 14:38:15 -03:00
pe-file.exe perf tests: Add test for PE binary format support 2020-09-04 14:38:15 -03:00
pe-file.exe.debug perf tests: Add test for PE binary format support 2020-09-04 14:38:15 -03:00
perf-hooks.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
perf-record.c perf sample: Make sure perf_sample__init/exit are used 2026-04-05 23:12:15 -07:00
perf-targz-src-pkg perf test: Change all remaining #!/bin/sh to #!/bin/bash 2025-06-26 10:31:05 -07:00
perf-time-to-tsc.c perf test: Switch cycles event to cpu-cycles 2025-10-15 23:59:12 +09:00
pfm.c perf auxtrace: Remove errno.h from auxtrace.h and fix transitive dependencies 2025-11-13 23:03:11 -08:00
pmu-events.c perf test pmu-events: A sub-test per metric table 2026-06-04 11:36:36 -03:00
pmu.c perf arm-spe: Don't warn about the discard bit if it doesn't exist 2026-05-29 21:20:50 -03:00
sample-parsing.c perf event: Fix size of synthesized sample with branch stacks 2026-05-20 16:11:30 -03:00
sdt.c perf tools: Don't read build-ids from non-regular files 2025-11-26 10:13:38 -08:00
sigtrap.c perf btf: Make the sigtrap test helper to find a member by name widely available 2024-12-09 17:52:41 -03:00
stat.c perf stat: Move stat_config into config.c 2024-12-18 16:24:32 -03:00
subcmd-help.c perf test subcmd help: Add exclude disjoint subcmd names 2026-01-12 15:57:23 -03:00
sw-clock.c perf tests sw-clock: Mark the volatile tmp variable as __maybe_unused 2026-01-20 20:49:53 -03:00
switch-tracking.c perf evlist: Try to avoid computing evsel from sample 2026-05-20 16:39:40 -03:00
symbols.c perf symbol: Add setters for bitfields sharing a byte to avoid concurrent update issues 2026-06-03 16:53:45 -03:00
task-exit.c perf target: Remove uid from target 2025-06-09 11:18:18 -07:00
tests-scripts.c perf test: Skip shebang and SPDX comments in shell test descriptions 2026-06-04 11:40:36 -03:00
tests-scripts.h perf tests: Run time generate shell test suites 2024-02-22 09:13:06 -08:00
tests.h perf test: Add named_threads workload 2026-06-10 18:55:49 -03:00
thread-map.c perf tools: Use calloc() where applicable 2026-04-08 19:21:05 -07:00
thread-maps-share.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
time-utils-test.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
tool_pmu.c perf tests: Fix Tool PMU test segfault 2025-02-12 19:34:56 -08:00
topology.c perf tests topology: Switch env->arch use to env->e_machine 2026-06-03 16:45:04 -03:00
uncore-event-sorting.c perf tests: Add test for uncore event sorting 2026-05-20 18:23:55 -03:00
unit_number__scnprintf.c perf test: Rename struct test to test_suite 2021-11-13 10:32:22 -03:00
util.c perf test: Split monolithic 'util' test suite into sub-tests 2026-06-04 11:40:51 -03:00
vmlinux-kallsyms.c perf machine: Propagate machine__init() error to callers 2026-06-17 09:21:03 -03:00
wp.c perf tools: Make more global variables static 2026-04-08 19:21:04 -07:00