perf tools: Add pid/tid filtering to report and script commands

The 'record' and 'top' tools already allow a user to specify a CSV of
pids and/or tids of tasks to collect data.

Add those options to the 'report' and 'script' analysis commands to only
consider samples related to the given pids/tids.

This is also inline with the existing comm option.

Signed-off-by: David Ahern <[e-mail]>
Cc: Adrian Hunter <[e-mail]>
Cc: Frederic Weisbecker <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Namhyung Kim <[e-mail]>
Cc: Stephane Eranian <[e-mail]>
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Arnaldo Carvalho de Melo <[e-mail]>

tools/perf/Documentation/perf-report.txt

···
 	Only consider symbols in these comms. CSV that understands
 	file://filename entries.  This option will affect the percentage of
 	the overhead column.  See --percentage for more info.
+--pid=::
+        Only show events for given process ID (comma separated list).
+
+--tid=::
+        Only show events for given thread ID (comma separated list).
 -d::
 --dsos=::
 	Only consider symbols in these dsos. CSV that understands

tools/perf/Documentation/perf-script.txt

···
 	Only display events for these comms. CSV that understands
 	file://filename entries.
 
+--pid=::
+	Only show events for given process ID (comma separated list).
+
+--tid=::
+	Only show events for given thread ID (comma separated list).
+
 -I::
 --show-info::
 	Display extended information about the perf.data file. This adds

tools/perf/builtin-report.c

···
 		   "only consider symbols in these dsos"),
 	OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
 		   "only consider symbols in these comms"),
+	OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
+		   "only consider symbols in these pids"),
+	OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
+		   "only consider symbols in these tids"),
 	OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
 		   "only consider these symbols"),
 	OPT_STRING(0, "symbol-filter", &report.symbol_filter_str, "filter",

tools/perf/builtin-script.c

···
 	OPT_STRING('C', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
 	OPT_STRING('c', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
 		   "only display events for these comms"),
+	OPT_STRING(0, "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
+		   "only consider symbols in these pids"),
+	OPT_STRING(0, "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
+		   "only consider symbols in these tids"),
 	OPT_BOOLEAN('I', "show-info", &show_full_info,
 		    "display extended information from perf.data file"),
 	OPT_BOOLEAN('\0', "show-kernel-path", &symbol_conf.show_kernel_path,

tools/perf/util/symbol.c

···
 #include "machine.h"
 #include "symbol.h"
 #include "strlist.h"
+#include "intlist.h"
 #include "header.h"
 
 #include <elf.h>
···
 	return 0;
 }
 
+int setup_intlist(struct intlist **list, const char *list_str,
+		  const char *list_name)
+{
+	if (list_str == NULL)
+		return 0;
+
+	*list = intlist__new(list_str);
+	if (!*list) {
+		pr_err("problems parsing %s list\n", list_name);
+		return -1;
+	}
+	return 0;
+}
+
 static bool symbol__read_kptr_restrict(void)
 {
 	bool value = false;
···
 		       symbol_conf.comm_list_str, "comm") < 0)
 		goto out_free_dso_list;
 
+	if (setup_intlist(&symbol_conf.pid_list,
+		       symbol_conf.pid_list_str, "pid") < 0)
+		goto out_free_comm_list;
+
+	if (setup_intlist(&symbol_conf.tid_list,
+		       symbol_conf.tid_list_str, "tid") < 0)
+		goto out_free_pid_list;
+
 	if (setup_list(&symbol_conf.sym_list,
 		       symbol_conf.sym_list_str, "symbol") < 0)
-		goto out_free_comm_list;
+		goto out_free_tid_list;
 
 	/*
 	 * A path to symbols of "/" is identical to ""
···
 	symbol_conf.initialized = true;
 	return 0;
 
+out_free_tid_list:
+	intlist__delete(symbol_conf.tid_list);
+out_free_pid_list:
+	intlist__delete(symbol_conf.pid_list);
 out_free_comm_list:
 	strlist__delete(symbol_conf.comm_list);
 out_free_dso_list:
···
 	strlist__delete(symbol_conf.sym_list);
 	strlist__delete(symbol_conf.dso_list);
 	strlist__delete(symbol_conf.comm_list);
+	intlist__delete(symbol_conf.tid_list);
+	intlist__delete(symbol_conf.pid_list);
 	vmlinux_path__exit();
 	symbol_conf.sym_list = symbol_conf.dso_list = symbol_conf.comm_list = NULL;
 	symbol_conf.initialized = false;

tools/perf/util/symbol.h

···
 }
 
 struct strlist;
+struct intlist;
 
 struct symbol_conf {
 	unsigned short	priv_size;
···
 	const char	*guestmount;
 	const char	*dso_list_str,
 			*comm_list_str,
+			*pid_list_str,
+			*tid_list_str,
 			*sym_list_str,
 			*col_width_list_str;
        struct strlist	*dso_list,
···
 			*dso_to_list,
 			*sym_from_list,
 			*sym_to_list;
+	struct intlist	*pid_list,
+			*tid_list;
 	const char	*symfs;
 };
 
···
 
 int setup_list(struct strlist **list, const char *list_str,
 	       const char *list_name);
+int setup_intlist(struct intlist **list, const char *list_str,
+		  const char *list_name);
 
 #endif /* __PERF_SYMBOL */

tools/perf/util/thread.h

···
 #include <sys/types.h>
 #include "symbol.h"
 #include <strlist.h>
+#include <intlist.h>
 
 struct thread_stack;
 
···
 {
 	if (symbol_conf.comm_list &&
 	    !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread))) {
+		return true;
+	}
+
+	if (symbol_conf.pid_list &&
+	    !intlist__has_entry(symbol_conf.pid_list, thread->pid_)) {
+		return true;
+	}
+
+	if (symbol_conf.tid_list &&
+	    !intlist__has_entry(symbol_conf.tid_list, thread->tid)) {
 		return true;
 	}