mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
2.3 KiB
102 lines
2.3 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
#include <linux/types.h> |
|
#include <linux/string.h> |
|
#include <linux/zalloc.h> |
|
|
|
#include "../../../util/event.h" |
|
#include "../../../util/synthetic-events.h" |
|
#include "../../../util/machine.h" |
|
#include "../../../util/tool.h" |
|
#include "../../../util/map.h" |
|
#include "../../../util/debug.h" |
|
|
|
#if defined(__x86_64__) |
|
|
|
int perf_event__synthesize_extra_kmaps(struct perf_tool *tool, |
|
perf_event__handler_t process, |
|
struct machine *machine) |
|
{ |
|
int rc = 0; |
|
struct map *pos; |
|
struct maps *kmaps = &machine->kmaps; |
|
union perf_event *event = zalloc(sizeof(event->mmap) + |
|
machine->id_hdr_size); |
|
|
|
if (!event) { |
|
pr_debug("Not enough memory synthesizing mmap event " |
|
"for extra kernel maps\n"); |
|
return -1; |
|
} |
|
|
|
maps__for_each_entry(kmaps, pos) { |
|
struct kmap *kmap; |
|
size_t size; |
|
|
|
if (!__map__is_extra_kernel_map(pos)) |
|
continue; |
|
|
|
kmap = map__kmap(pos); |
|
|
|
size = sizeof(event->mmap) - sizeof(event->mmap.filename) + |
|
PERF_ALIGN(strlen(kmap->name) + 1, sizeof(u64)) + |
|
machine->id_hdr_size; |
|
|
|
memset(event, 0, size); |
|
|
|
event->mmap.header.type = PERF_RECORD_MMAP; |
|
|
|
/* |
|
* kernel uses 0 for user space maps, see kernel/perf_event.c |
|
* __perf_event_mmap |
|
*/ |
|
if (machine__is_host(machine)) |
|
event->header.misc = PERF_RECORD_MISC_KERNEL; |
|
else |
|
event->header.misc = PERF_RECORD_MISC_GUEST_KERNEL; |
|
|
|
event->mmap.header.size = size; |
|
|
|
event->mmap.start = pos->start; |
|
event->mmap.len = pos->end - pos->start; |
|
event->mmap.pgoff = pos->pgoff; |
|
event->mmap.pid = machine->pid; |
|
|
|
strlcpy(event->mmap.filename, kmap->name, PATH_MAX); |
|
|
|
if (perf_tool__process_synth_event(tool, event, machine, |
|
process) != 0) { |
|
rc = -1; |
|
break; |
|
} |
|
} |
|
|
|
free(event); |
|
return rc; |
|
} |
|
|
|
#endif |
|
|
|
void arch_perf_parse_sample_weight(struct perf_sample *data, |
|
const __u64 *array, u64 type) |
|
{ |
|
union perf_sample_weight weight; |
|
|
|
weight.full = *array; |
|
if (type & PERF_SAMPLE_WEIGHT) |
|
data->weight = weight.full; |
|
else { |
|
data->weight = weight.var1_dw; |
|
data->ins_lat = weight.var2_w; |
|
} |
|
} |
|
|
|
void arch_perf_synthesize_sample_weight(const struct perf_sample *data, |
|
__u64 *array, u64 type) |
|
{ |
|
*array = data->weight; |
|
|
|
if (type & PERF_SAMPLE_WEIGHT_STRUCT) { |
|
*array &= 0xffffffff; |
|
*array |= ((u64)data->ins_lat << 32); |
|
} |
|
}
|
|
|