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1d1a2654ff
Since it uses machine__kernel_map() and this function always returns the
MAP__FUNCTION map, it doesn't make sense to call it with MAP__VARIABLE.
And also this is a step in the direction of nuking the MAP__{FUNCTION,VARIABLE}
split.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.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-0h3eof3kx3kq32ixg5fquf3p@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
298 lines
9.4 KiB
C
298 lines
9.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __PERF_MACHINE_H
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#define __PERF_MACHINE_H
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#include <sys/types.h>
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#include <linux/rbtree.h>
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#include "map.h"
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#include "dso.h"
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#include "event.h"
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#include "rwsem.h"
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struct addr_location;
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struct branch_stack;
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struct perf_evsel;
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struct perf_sample;
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struct symbol;
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struct thread;
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union perf_event;
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/* Native host kernel uses -1 as pid index in machine */
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#define HOST_KERNEL_ID (-1)
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#define DEFAULT_GUEST_KERNEL_ID (0)
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extern const char *ref_reloc_sym_names[];
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struct vdso_info;
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#define THREADS__TABLE_BITS 8
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#define THREADS__TABLE_SIZE (1 << THREADS__TABLE_BITS)
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struct threads {
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struct rb_root entries;
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struct rw_semaphore lock;
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unsigned int nr;
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struct list_head dead;
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struct thread *last_match;
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};
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struct machine {
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struct rb_node rb_node;
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pid_t pid;
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u16 id_hdr_size;
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bool comm_exec;
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bool kptr_restrict_warned;
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char *root_dir;
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char *mmap_name;
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struct threads threads[THREADS__TABLE_SIZE];
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struct vdso_info *vdso_info;
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struct perf_env *env;
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struct dsos dsos;
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struct map_groups kmaps;
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struct map *vmlinux_maps[MAP__NR_TYPES];
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u64 kernel_start;
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pid_t *current_tid;
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union { /* Tool specific area */
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void *priv;
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u64 db_id;
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};
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};
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static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
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{
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/* Cast it to handle tid == -1 */
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return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
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}
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static inline
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struct map *__machine__kernel_map(struct machine *machine, enum map_type type)
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{
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return machine->vmlinux_maps[type];
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}
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/*
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* The main kernel (vmlinux) map
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*/
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static inline
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struct map *machine__kernel_map(struct machine *machine)
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{
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return __machine__kernel_map(machine, MAP__FUNCTION);
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}
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/*
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* kernel (the one returned by machine__kernel_map()) plus kernel modules maps
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*/
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static inline
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struct maps *machine__kernel_maps(struct machine *machine)
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{
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return &machine->kmaps.maps[MAP__FUNCTION];
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}
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int machine__get_kernel_start(struct machine *machine);
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static inline u64 machine__kernel_start(struct machine *machine)
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{
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if (!machine->kernel_start)
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machine__get_kernel_start(machine);
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return machine->kernel_start;
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}
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static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
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{
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u64 kernel_start = machine__kernel_start(machine);
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return ip >= kernel_start;
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}
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struct thread *machine__find_thread(struct machine *machine, pid_t pid,
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pid_t tid);
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struct comm *machine__thread_exec_comm(struct machine *machine,
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struct thread *thread);
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int machine__process_comm_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_exit_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_fork_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_lost_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_aux_event(struct machine *machine,
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union perf_event *event);
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int machine__process_itrace_start_event(struct machine *machine,
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union perf_event *event);
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int machine__process_switch_event(struct machine *machine,
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union perf_event *event);
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int machine__process_namespaces_event(struct machine *machine,
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union perf_event *event,
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struct perf_sample *sample);
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int machine__process_mmap_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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int machine__process_event(struct machine *machine, union perf_event *event,
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struct perf_sample *sample);
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typedef void (*machine__process_t)(struct machine *machine, void *data);
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struct machines {
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struct machine host;
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struct rb_root guests;
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};
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void machines__init(struct machines *machines);
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void machines__exit(struct machines *machines);
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void machines__process_guests(struct machines *machines,
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machine__process_t process, void *data);
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struct machine *machines__add(struct machines *machines, pid_t pid,
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const char *root_dir);
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struct machine *machines__find_host(struct machines *machines);
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struct machine *machines__find(struct machines *machines, pid_t pid);
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struct machine *machines__findnew(struct machines *machines, pid_t pid);
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void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);
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void machines__set_comm_exec(struct machines *machines, bool comm_exec);
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struct machine *machine__new_host(void);
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struct machine *machine__new_kallsyms(void);
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int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
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void machine__exit(struct machine *machine);
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void machine__delete_threads(struct machine *machine);
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void machine__delete(struct machine *machine);
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void machine__remove_thread(struct machine *machine, struct thread *th);
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struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
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struct addr_location *al);
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struct mem_info *sample__resolve_mem(struct perf_sample *sample,
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struct addr_location *al);
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struct callchain_cursor;
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int thread__resolve_callchain(struct thread *thread,
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struct callchain_cursor *cursor,
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struct perf_evsel *evsel,
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struct perf_sample *sample,
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struct symbol **parent,
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struct addr_location *root_al,
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int max_stack);
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/*
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* Default guest kernel is defined by parameter --guestkallsyms
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* and --guestmodules
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*/
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static inline bool machine__is_default_guest(struct machine *machine)
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{
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return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
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}
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static inline bool machine__is_host(struct machine *machine)
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{
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return machine ? machine->pid == HOST_KERNEL_ID : false;
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}
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struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
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struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
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struct dso *machine__findnew_dso(struct machine *machine, const char *filename);
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size_t machine__fprintf(struct machine *machine, FILE *fp);
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static inline
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struct symbol *machine__find_kernel_symbol(struct machine *machine,
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enum map_type type, u64 addr,
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struct map **mapp)
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{
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return map_groups__find_symbol(&machine->kmaps, type, addr, mapp);
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}
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static inline
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struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
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enum map_type type, const char *name,
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struct map **mapp)
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{
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return map_groups__find_symbol_by_name(&machine->kmaps, type, name, mapp);
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}
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static inline
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struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,
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struct map **mapp)
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{
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return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,
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mapp);
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}
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static inline
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struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
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const char *name,
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struct map **mapp)
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{
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return map_groups__find_function_by_name(&machine->kmaps, name, mapp);
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}
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struct map *machine__findnew_module_map(struct machine *machine, u64 start,
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const char *filename);
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int arch__fix_module_text_start(u64 *start, const char *name);
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int __machine__load_kallsyms(struct machine *machine, const char *filename,
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enum map_type type);
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static inline int machine__load_kallsyms(struct machine *machine, const char *filename)
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{
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return __machine__load_kallsyms(machine, filename, MAP__FUNCTION);
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}
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int machine__load_vmlinux_path(struct machine *machine);
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size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
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bool (skip)(struct dso *dso, int parm), int parm);
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size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
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size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,
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bool (skip)(struct dso *dso, int parm), int parm);
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void machine__destroy_kernel_maps(struct machine *machine);
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int machine__create_kernel_maps(struct machine *machine);
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int machines__create_kernel_maps(struct machines *machines, pid_t pid);
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int machines__create_guest_kernel_maps(struct machines *machines);
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void machines__destroy_kernel_maps(struct machines *machines);
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size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
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int machine__for_each_thread(struct machine *machine,
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int (*fn)(struct thread *thread, void *p),
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void *priv);
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int machines__for_each_thread(struct machines *machines,
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int (*fn)(struct thread *thread, void *p),
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void *priv);
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int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
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struct target *target, struct thread_map *threads,
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perf_event__handler_t process, bool data_mmap,
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unsigned int proc_map_timeout,
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unsigned int nr_threads_synthesize);
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static inline
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int machine__synthesize_threads(struct machine *machine, struct target *target,
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struct thread_map *threads, bool data_mmap,
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unsigned int proc_map_timeout,
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unsigned int nr_threads_synthesize)
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{
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return __machine__synthesize_threads(machine, NULL, target, threads,
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perf_event__process, data_mmap,
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proc_map_timeout,
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nr_threads_synthesize);
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}
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pid_t machine__get_current_tid(struct machine *machine, int cpu);
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int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
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pid_t tid);
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/*
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* For use with libtraceevent's pevent_set_function_resolver()
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*/
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char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);
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#endif /* __PERF_MACHINE_H */
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