perf tests: Add missing SPDX headers

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-p0kg493z2m8qizjbdefzip1i@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/Build

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
 perf-y += builtin-test.o
 perf-y += parse-events.o
 perf-y += dso-data.o

tools/perf/tests/bp_account.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Powerpc needs __SANE_USERSPACE_TYPES__ before <linux/types.h> to select
  * 'int-ll64.h' and avoid compile warnings when printing __u64 with %llu.

tools/perf/tests/bpf-script-example.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bpf-script-example.c
  * Test basic LLVM building

tools/perf/tests/bpf-script-test-kbuild.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bpf-script-test-kbuild.c
  * Test include from kernel header

tools/perf/tests/bpf-script-test-prologue.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bpf-script-test-prologue.c
  * Test BPF prologue

tools/perf/tests/bpf-script-test-relocation.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bpf-script-test-relocation.c
  * Test BPF loader checking relocation

tools/perf/tests/bpf.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdio.h>
 #include <sys/epoll.h>

tools/perf/tests/map_groups.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include "tests.h"

tools/perf/tests/mem.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util/mem-events.h"
 #include "util/symbol.h"
 #include "linux/perf_event.h"

tools/perf/tests/mem2node.c

@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/bitmap.h>
 #include "cpumap.h"

tools/perf/tests/shell/lib/probe.sh

@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
 
 skip_if_no_perf_probe() {

tools/perf/tests/shell/probe_vfs_getname.sh

@@ -1,6 +1,7 @@
 #!/bin/sh
 # Add vfs_getname probe to get syscall args filenames
-#
+
+# SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
 
 . $(dirname $0)/lib/probe.sh

tools/perf/tests/shell/record+probe_libc_inet_pton.sh

@@ -7,6 +7,7 @@
 # This needs no debuginfo package, all is done using the libc ELF symtab
 # and the CFI info in the binaries.
 
+# SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
 
 . $(dirname $0)/lib/probe.sh

tools/perf/tests/shell/record+script_probe_vfs_getname.sh

@@ -6,6 +6,7 @@
 # checks that that was captured by the vfs_getname probe in the generated
 # perf.data file, with the temp file name as the pathname argument.
 
+# SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
 
 . $(dirname $0)/lib/probe.sh

tools/perf/tests/shell/record+zstd_comp_decomp.sh

@@ -1,6 +1,8 @@
 #!/bin/sh
 # Zstd perf.data compression/decompression
 
+# SPDX-License-Identifier: GPL-2.0
+
 trace_file=$(mktemp /tmp/perf.data.XXX)
 perf_tool=perf
 

tools/perf/tests/shell/trace+probe_vfs_getname.sh

@@ -7,6 +7,7 @@
 # that already handles "probe:vfs_getname" if present, and used in the
 # "open" syscall "filename" argument beautifier.
 
+# SPDX-License-Identifier: GPL-2.0
 # Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
 
 . $(dirname $0)/lib/probe.sh