perf machine: Move more methods to machine.[ch]

This time out of map.[ch] mostly, just code move plus a buch of 'self'
removal, using machine or machines instead.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-j1vtux3vnu6wzmrjutpxnjcz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/tests/builtin-test.c

@@ -10,6 +10,7 @@
 #include "util/debug.h"
 #include "util/debugfs.h"
 #include "util/evlist.h"
+#include "util/machine.h"
 #include "util/parse-options.h"
 #include "util/parse-events.h"
 #include "util/symbol.h"

tools/perf/tests/dso-data.c

@@ -6,6 +6,7 @@
 #include <fcntl.h>
 #include <string.h>
 
+#include "machine.h"
 #include "symbol.h"
 
 #define TEST_ASSERT_VAL(text, cond) \

tools/perf/util/dso.c

@@ -1,5 +1,6 @@
 #include "symbol.h"
 #include "dso.h"
+#include "machine.h"
 #include "util.h"
 #include "debug.h"
 

tools/perf/util/machine.c

@@ -2,9 +2,192 @@
 #include "event.h"
 #include "machine.h"
 #include "map.h"
+#include "strlist.h"
 #include "thread.h"
 #include <stdbool.h>
 
+int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
+{
+	map_groups__init(&machine->kmaps);
+	RB_CLEAR_NODE(&machine->rb_node);
+	INIT_LIST_HEAD(&machine->user_dsos);
+	INIT_LIST_HEAD(&machine->kernel_dsos);
+
+	machine->threads = RB_ROOT;
+	INIT_LIST_HEAD(&machine->dead_threads);
+	machine->last_match = NULL;
+
+	machine->kmaps.machine = machine;
+	machine->pid = pid;
+
+	machine->root_dir = strdup(root_dir);
+	if (machine->root_dir == NULL)
+		return -ENOMEM;
+
+	if (pid != HOST_KERNEL_ID) {
+		struct thread *thread = machine__findnew_thread(machine, pid);
+		char comm[64];
+
+		if (thread == NULL)
+			return -ENOMEM;
+
+		snprintf(comm, sizeof(comm), "[guest/%d]", pid);
+		thread__set_comm(thread, comm);
+	}
+
+	return 0;
+}
+
+static void dsos__delete(struct list_head *dsos)
+{
+	struct dso *pos, *n;
+
+	list_for_each_entry_safe(pos, n, dsos, node) {
+		list_del(&pos->node);
+		dso__delete(pos);
+	}
+}
+
+void machine__exit(struct machine *machine)
+{
+	map_groups__exit(&machine->kmaps);
+	dsos__delete(&machine->user_dsos);
+	dsos__delete(&machine->kernel_dsos);
+	free(machine->root_dir);
+	machine->root_dir = NULL;
+}
+
+void machine__delete(struct machine *machine)
+{
+	machine__exit(machine);
+	free(machine);
+}
+
+struct machine *machines__add(struct rb_root *machines, pid_t pid,
+			      const char *root_dir)
+{
+	struct rb_node **p = &machines->rb_node;
+	struct rb_node *parent = NULL;
+	struct machine *pos, *machine = malloc(sizeof(*machine));
+
+	if (machine == NULL)
+		return NULL;
+
+	if (machine__init(machine, root_dir, pid) != 0) {
+		free(machine);
+		return NULL;
+	}
+
+	while (*p != NULL) {
+		parent = *p;
+		pos = rb_entry(parent, struct machine, rb_node);
+		if (pid < pos->pid)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+
+	rb_link_node(&machine->rb_node, parent, p);
+	rb_insert_color(&machine->rb_node, machines);
+
+	return machine;
+}
+
+struct machine *machines__find(struct rb_root *machines, pid_t pid)
+{
+	struct rb_node **p = &machines->rb_node;
+	struct rb_node *parent = NULL;
+	struct machine *machine;
+	struct machine *default_machine = NULL;
+
+	while (*p != NULL) {
+		parent = *p;
+		machine = rb_entry(parent, struct machine, rb_node);
+		if (pid < machine->pid)
+			p = &(*p)->rb_left;
+		else if (pid > machine->pid)
+			p = &(*p)->rb_right;
+		else
+			return machine;
+		if (!machine->pid)
+			default_machine = machine;
+	}
+
+	return default_machine;
+}
+
+struct machine *machines__findnew(struct rb_root *machines, pid_t pid)
+{
+	char path[PATH_MAX];
+	const char *root_dir = "";
+	struct machine *machine = machines__find(machines, pid);
+
+	if (machine && (machine->pid == pid))
+		goto out;
+
+	if ((pid != HOST_KERNEL_ID) &&
+	    (pid != DEFAULT_GUEST_KERNEL_ID) &&
+	    (symbol_conf.guestmount)) {
+		sprintf(path, "%s/%d", symbol_conf.guestmount, pid);
+		if (access(path, R_OK)) {
+			static struct strlist *seen;
+
+			if (!seen)
+				seen = strlist__new(true, NULL);
+
+			if (!strlist__has_entry(seen, path)) {
+				pr_err("Can't access file %s\n", path);
+				strlist__add(seen, path);
+			}
+			machine = NULL;
+			goto out;
+		}
+		root_dir = path;
+	}
+
+	machine = machines__add(machines, pid, root_dir);
+out:
+	return machine;
+}
+
+void machines__process(struct rb_root *machines,
+		       machine__process_t process, void *data)
+{
+	struct rb_node *nd;
+
+	for (nd = rb_first(machines); nd; nd = rb_next(nd)) {
+		struct machine *pos = rb_entry(nd, struct machine, rb_node);
+		process(pos, data);
+	}
+}
+
+char *machine__mmap_name(struct machine *machine, char *bf, size_t size)
+{
+	if (machine__is_host(machine))
+		snprintf(bf, size, "[%s]", "kernel.kallsyms");
+	else if (machine__is_default_guest(machine))
+		snprintf(bf, size, "[%s]", "guest.kernel.kallsyms");
+	else {
+		snprintf(bf, size, "[%s.%d]", "guest.kernel.kallsyms",
+			 machine->pid);
+	}
+
+	return bf;
+}
+
+void machines__set_id_hdr_size(struct rb_root *machines, u16 id_hdr_size)
+{
+	struct rb_node *node;
+	struct machine *machine;
+
+	for (node = rb_first(machines); node; node = rb_next(node)) {
+		machine = rb_entry(node, struct machine, rb_node);
+		machine->id_hdr_size = id_hdr_size;
+	}
+
+	return;
+}
+
 static struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid,
 						bool create)
 {

tools/perf/util/machine.h

@@ -2,11 +2,40 @@
 #define __PERF_MACHINE_H
 
 #include <sys/types.h>
+#include <linux/rbtree.h>
+#include "map.h"
 
+struct branch_stack;
+struct perf_evsel;
+struct perf_sample;
+struct symbol;
 struct thread;
-struct machine;
 union perf_event;
 
+/* Native host kernel uses -1 as pid index in machine */
+#define	HOST_KERNEL_ID			(-1)
+#define	DEFAULT_GUEST_KERNEL_ID		(0)
+
+struct machine {
+	struct rb_node	  rb_node;
+	pid_t		  pid;
+	u16		  id_hdr_size;
+	char		  *root_dir;
+	struct rb_root	  threads;
+	struct list_head  dead_threads;
+	struct thread	  *last_match;
+	struct list_head  user_dsos;
+	struct list_head  kernel_dsos;
+	struct map_groups kmaps;
+	struct map	  *vmlinux_maps[MAP__NR_TYPES];
+};
+
+static inline
+struct map *machine__kernel_map(struct machine *machine, enum map_type type)
+{
+	return machine->vmlinux_maps[type];
+}
+
 struct thread *machine__find_thread(struct machine *machine, pid_t pid);
 
 int machine__process_comm_event(struct machine *machine, union perf_event *event);
@@ -16,4 +45,104 @@ int machine__process_lost_event(struct machine *machine, union perf_event *event
 int machine__process_mmap_event(struct machine *machine, union perf_event *event);
 int machine__process_event(struct machine *machine, union perf_event *event);
 
+typedef void (*machine__process_t)(struct machine *machine, void *data);
+
+void machines__process(struct rb_root *machines,
+		       machine__process_t process, void *data);
+
+struct machine *machines__add(struct rb_root *machines, pid_t pid,
+			      const char *root_dir);
+struct machine *machines__find_host(struct rb_root *machines);
+struct machine *machines__find(struct rb_root *machines, pid_t pid);
+struct machine *machines__findnew(struct rb_root *machines, pid_t pid);
+
+void machines__set_id_hdr_size(struct rb_root *machines, u16 id_hdr_size);
+char *machine__mmap_name(struct machine *machine, char *bf, size_t size);
+
+int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
+void machine__exit(struct machine *machine);
+void machine__delete(struct machine *machine);
+
+
+struct branch_info *machine__resolve_bstack(struct machine *machine,
+					    struct thread *thread,
+					    struct branch_stack *bs);
+int machine__resolve_callchain(struct machine *machine,
+			       struct perf_evsel *evsel,
+			       struct thread *thread,
+			       struct perf_sample *sample,
+			       struct symbol **parent);
+
+/*
+ * Default guest kernel is defined by parameter --guestkallsyms
+ * and --guestmodules
+ */
+static inline bool machine__is_default_guest(struct machine *machine)
+{
+	return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
+}
+
+static inline bool machine__is_host(struct machine *machine)
+{
+	return machine ? machine->pid == HOST_KERNEL_ID : false;
+}
+
+struct thread *machine__findnew_thread(struct machine *machine, pid_t pid);
+void machine__remove_thread(struct machine *machine, struct thread *th);
+
+size_t machine__fprintf(struct machine *machine, FILE *fp);
+
+static inline
+struct symbol *machine__find_kernel_symbol(struct machine *machine,
+					   enum map_type type, u64 addr,
+					   struct map **mapp,
+					   symbol_filter_t filter)
+{
+	return map_groups__find_symbol(&machine->kmaps, type, addr,
+				       mapp, filter);
+}
+
+static inline
+struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
+					     struct map **mapp,
+					     symbol_filter_t filter)
+{
+	return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
+					   mapp, filter);
+}
+
+static inline
+struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
+						     const char *name,
+						     struct map **mapp,
+						     symbol_filter_t filter)
+{
+	return map_groups__find_function_by_name(&machine->kmaps, name, mapp,
+						 filter);
+}
+
+struct map *machine__new_module(struct machine *machine, u64 start,
+				const char *filename);
+
+int machine__load_kallsyms(struct machine *machine, const char *filename,
+			   enum map_type type, symbol_filter_t filter);
+int machine__load_vmlinux_path(struct machine *machine, enum map_type type,
+			       symbol_filter_t filter);
+
+size_t machine__fprintf_dsos_buildid(struct machine *machine,
+				     FILE *fp, bool with_hits);
+size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp);
+size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
+				      FILE *fp, bool with_hits);
+
+void machine__destroy_kernel_maps(struct machine *machine);
+int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
+int machine__create_kernel_maps(struct machine *machine);
+
+int machines__create_kernel_maps(struct rb_root *machines, pid_t pid);
+int machines__create_guest_kernel_maps(struct rb_root *machines);
+void machines__destroy_guest_kernel_maps(struct rb_root *machines);
+
+size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
+
 #endif /* __PERF_MACHINE_H */