tools lib: Adopt zalloc()/zfree() from tools/perf

Eroding a bit more the tools/perf/util/util.h hodpodge header.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-natazosyn9rwjka25tvcnyi0@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/include/linux/zalloc.h

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: LGPL-2.1
+#ifndef __TOOLS_LINUX_ZALLOC_H
+#define __TOOLS_LINUX_ZALLOC_H
+
+#include <stddef.h>
+
+void *zalloc(size_t size);
+void __zfree(void **ptr);
+
+#define zfree(ptr) __zfree((void **)(ptr))
+
+#endif // __TOOLS_LINUX_ZALLOC_H

tools/lib/zalloc.c

@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: LGPL-2.1
+
+#include <stdlib.h>
+#include <linux/zalloc.h>
+
+void *zalloc(size_t size)
+{
+	return calloc(1, size);
+}
+
+void __zfree(void **ptr)
+{
+	free(*ptr);
+	*ptr = NULL;
+}

tools/perf/MANIFEST

@@ -18,3 +18,4 @@ tools/lib/find_bit.c
 tools/lib/bitmap.c
 tools/lib/str_error_r.c
 tools/lib/vsprintf.c
+tools/lib/zalloc.c

tools/perf/arch/arm/annotate/instructions.c

@@ -1,5 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
+#include <linux/zalloc.h>
 #include <sys/types.h>
 #include <regex.h>
 

tools/perf/arch/arm/util/auxtrace.c

@@ -6,6 +6,7 @@
 
 #include <stdbool.h>
 #include <linux/coresight-pmu.h>
+#include <linux/zalloc.h>
 
 #include "../../util/auxtrace.h"
 #include "../../util/evlist.h"

tools/perf/arch/arm/util/cs-etm.c

@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/log2.h>
 #include <linux/types.h>
+#include <linux/zalloc.h>
 
 #include "cs-etm.h"
 #include "../../perf.h"

tools/perf/arch/arm64/util/arm-spe.c

@@ -8,6 +8,7 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/log2.h>
+#include <linux/zalloc.h>
 #include <time.h>
 
 #include "../../util/cpumap.h"

tools/perf/arch/common.c

@@ -3,8 +3,8 @@
 #include <stdlib.h>
 #include "common.h"
 #include "../util/env.h"
-#include "../util/util.h"
 #include "../util/debug.h"
+#include <linux/zalloc.h>
 
 const char *const arc_triplets[] = {
 	"arc-linux-",

tools/perf/arch/powerpc/util/perf_regs.c

@@ -2,9 +2,9 @@
 #include <errno.h>
 #include <string.h>
 #include <regex.h>
+#include <linux/zalloc.h>
 
 #include "../../perf.h"
-#include "../../util/util.h"
 #include "../../util/perf_regs.h"
 #include "../../util/debug.h"
 

tools/perf/arch/s390/util/auxtrace.c

@@ -3,6 +3,7 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/log2.h>
+#include <linux/zalloc.h>
 
 #include "../../util/evlist.h"
 #include "../../util/auxtrace.h"

tools/perf/arch/s390/util/header.c

@@ -13,9 +13,9 @@
 #include <string.h>
 #include <linux/ctype.h>
 #include <linux/kernel.h>
+#include <linux/zalloc.h>
 
 #include "../../util/header.h"
-#include "../../util/util.h"
 
 #define SYSINFO_MANU	"Manufacturer:"
 #define SYSINFO_TYPE	"Type:"

tools/perf/arch/x86/util/event.c

@@ -1,11 +1,11 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/string.h>
+#include <linux/zalloc.h>
 
 #include "../../util/machine.h"
 #include "../../util/tool.h"
 #include "../../util/map.h"
-#include "../../util/util.h"
 #include "../../util/debug.h"
 
 #if defined(__x86_64__)

tools/perf/arch/x86/util/intel-bts.c

@@ -9,12 +9,12 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/log2.h>
+#include <linux/zalloc.h>
 
 #include "../../util/cpumap.h"
 #include "../../util/evsel.h"
 #include "../../util/evlist.h"
 #include "../../util/session.h"
-#include "../../util/util.h"
 #include "../../util/pmu.h"
 #include "../../util/debug.h"
 #include "../../util/tsc.h"

tools/perf/arch/x86/util/intel-pt.c

@@ -10,6 +10,7 @@
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include <linux/log2.h>
+#include <linux/zalloc.h>
 #include <cpuid.h>
 
 #include "../../perf.h"
@@ -25,7 +26,6 @@
 #include "../../util/auxtrace.h"
 #include "../../util/tsc.h"
 #include "../../util/intel-pt.h"
-#include "../../util/util.h"
 
 #define KiB(x) ((x) * 1024)
 #define MiB(x) ((x) * 1024 * 1024)

tools/perf/arch/x86/util/perf_regs.c

@@ -2,9 +2,9 @@
 #include <errno.h>
 #include <string.h>
 #include <regex.h>
+#include <linux/zalloc.h>
 
 #include "../../perf.h"
-#include "../../util/util.h"
 #include "../../util/perf_regs.h"
 #include "../../util/debug.h"
 

tools/perf/bench/mem-functions.c

@@ -9,7 +9,6 @@
 
 #include "debug.h"
 #include "../perf.h"
-#include "../util/util.h"
 #include <subcmd/parse-options.h>
 #include "../util/header.h"
 #include "../util/cloexec.h"
@@ -24,6 +23,7 @@
 #include <sys/time.h>
 #include <errno.h>
 #include <linux/time64.h>
+#include <linux/zalloc.h>
 
 #define K 1024
 

tools/perf/bench/numa.c

@@ -11,7 +11,6 @@
 
 #include "../perf.h"
 #include "../builtin.h"
-#include "../util/util.h"
 #include <subcmd/parse-options.h>
 #include "../util/cloexec.h"
 
@@ -35,6 +34,7 @@
 #include <linux/kernel.h>
 #include <linux/time64.h>
 #include <linux/numa.h>
+#include <linux/zalloc.h>
 
 #include <numa.h>
 #include <numaif.h>

tools/perf/builtin-annotate.c

@@ -8,11 +8,11 @@
  */
 #include "builtin.h"
 
-#include "util/util.h"
 #include "util/color.h"
 #include <linux/list.h>
 #include "util/cache.h"
 #include <linux/rbtree.h>
+#include <linux/zalloc.h>
 #include "util/symbol.h"
 
 #include "perf.h"

tools/perf/builtin-bench.c

@@ -17,7 +17,6 @@
  *  epoll ... Event poll performance
  */
 #include "perf.h"
-#include "util/util.h"
 #include <subcmd/parse-options.h>
 #include "builtin.h"
 #include "bench/bench.h"
@@ -26,6 +25,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/prctl.h>
+#include <linux/zalloc.h>
 
 typedef int (*bench_fn_t)(int argc, const char **argv);
 

tools/perf/builtin-c2c.c

@@ -15,9 +15,9 @@
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <linux/stringify.h>
+#include <linux/zalloc.h>
 #include <asm/bug.h>
 #include <sys/param.h>
-#include "util.h"
 #include "debug.h"
 #include "builtin.h"
 #include <subcmd/parse-options.h>

tools/perf/builtin-diff.c

@@ -16,12 +16,12 @@
 #include "util/tool.h"
 #include "util/sort.h"
 #include "util/symbol.h"
-#include "util/util.h"
 #include "util/data.h"
 #include "util/config.h"
 #include "util/time-utils.h"
 #include "util/annotate.h"
 #include "util/map.h"
+#include <linux/zalloc.h>
 
 #include <errno.h>
 #include <inttypes.h>

tools/perf/builtin-help.c

@@ -14,6 +14,7 @@
 #include <subcmd/help.h>
 #include "util/debug.h"
 #include <linux/kernel.h>
+#include <linux/zalloc.h>
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>

tools/perf/builtin-kmem.c

@@ -4,7 +4,6 @@
 
 #include "util/evlist.h"
 #include "util/evsel.h"
-#include "util/util.h"
 #include "util/config.h"
 #include "util/map.h"
 #include "util/symbol.h"
@@ -26,6 +25,7 @@
 #include <linux/kernel.h>
 #include <linux/rbtree.h>
 #include <linux/string.h>
+#include <linux/zalloc.h>
 #include <errno.h>
 #include <inttypes.h>
 #include <locale.h>

tools/perf/builtin-kvm.c

@@ -5,7 +5,6 @@
 #include "util/evsel.h"
 #include "util/evlist.h"
 #include "util/term.h"
-#include "util/util.h"
 #include "util/cache.h"
 #include "util/symbol.h"
 #include "util/thread.h"
@@ -32,6 +31,7 @@
 
 #include <linux/kernel.h>
 #include <linux/time64.h>
+#include <linux/zalloc.h>
 #include <errno.h>
 #include <inttypes.h>
 #include <poll.h>

tools/perf/builtin-lock.c

@@ -6,7 +6,6 @@
 
 #include "util/evlist.h"
 #include "util/evsel.h"
-#include "util/util.h"
 #include "util/cache.h"
 #include "util/symbol.h"
 #include "util/thread.h"
@@ -30,6 +29,7 @@
 #include <linux/list.h>
 #include <linux/hash.h>
 #include <linux/kernel.h>
+#include <linux/zalloc.h>
 
 static struct perf_session *session;
 

tools/perf/builtin-probe.c

@@ -19,7 +19,6 @@
 #include "perf.h"
 #include "builtin.h"
 #include "namespaces.h"
-#include "util/util.h"
 #include "util/strlist.h"
 #include "util/strfilter.h"
 #include "util/symbol.h"
@@ -28,6 +27,7 @@
 #include "util/probe-finder.h"
 #include "util/probe-event.h"
 #include "util/probe-file.h"
+#include <linux/zalloc.h>
 
 #define DEFAULT_VAR_FILTER "!__k???tab_* & !__crc_*"
 #define DEFAULT_FUNC_FILTER "!_*"

tools/perf/builtin-report.c

@@ -8,14 +8,14 @@
  */
 #include "builtin.h"
 
-#include "util/util.h"
 #include "util/config.h"
 
 #include "util/annotate.h"
 #include "util/color.h"
 #include <linux/list.h>
 #include <linux/rbtree.h>
 #include <linux/err.h>
+#include <linux/zalloc.h>
 #include "util/map.h"
 #include "util/symbol.h"
 #include "util/callchain.h"

tools/perf/builtin-sched.c

@@ -2,7 +2,6 @@
 #include "builtin.h"
 #include "perf.h"
 
-#include "util/util.h"
 #include "util/evlist.h"
 #include "util/cache.h"
 #include "util/evsel.h"
@@ -26,6 +25,7 @@
 
 #include <linux/kernel.h>
 #include <linux/log2.h>
+#include <linux/zalloc.h>
 #include <sys/prctl.h>
 #include <sys/resource.h>
 #include <inttypes.h>

tools/perf/builtin-script.c

@@ -14,7 +14,6 @@
 #include "util/symbol.h"
 #include "util/thread.h"
 #include "util/trace-event.h"
-#include "util/util.h"
 #include "util/evlist.h"
 #include "util/evsel.h"
 #include "util/sort.h"
@@ -34,6 +33,7 @@
 #include <linux/kernel.h>
 #include <linux/stringify.h>
 #include <linux/time64.h>
+#include <linux/zalloc.h>
 #include <sys/utsname.h>
 #include "asm/bug.h"
 #include "util/mem-events.h"

tools/perf/builtin-stat.c

@@ -43,7 +43,6 @@
 #include "perf.h"
 #include "builtin.h"
 #include "util/cgroup.h"
-#include "util/util.h"
 #include <subcmd/parse-options.h>
 #include "util/parse-events.h"
 #include "util/pmu.h"
@@ -67,6 +66,7 @@
 #include "asm/bug.h"
 
 #include <linux/time64.h>
+#include <linux/zalloc.h>
 #include <api/fs/fs.h>
 #include <errno.h>
 #include <signal.h>

tools/perf/builtin-timechart.c

@@ -13,9 +13,6 @@
 #include <traceevent/event-parse.h>
 
 #include "builtin.h"
-
-#include "util/util.h"
-
 #include "util/color.h"
 #include <linux/list.h>
 #include "util/cache.h"
@@ -24,6 +21,7 @@
 #include <linux/kernel.h>
 #include <linux/rbtree.h>
 #include <linux/time64.h>
+#include <linux/zalloc.h>
 #include "util/symbol.h"
 #include "util/thread.h"
 #include "util/callchain.h"