From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/tools/bpf/bpftool/skeleton/profiler.bpf.c | 27 +++++++++++++++++----------
1 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/kernel/tools/bpf/bpftool/skeleton/profiler.bpf.c b/kernel/tools/bpf/bpftool/skeleton/profiler.bpf.c
index ce5b65e..2f80edc 100644
--- a/kernel/tools/bpf/bpftool/skeleton/profiler.bpf.c
+++ b/kernel/tools/bpf/bpftool/skeleton/profiler.bpf.c
@@ -4,6 +4,12 @@
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
+struct bpf_perf_event_value___local {
+ __u64 counter;
+ __u64 enabled;
+ __u64 running;
+} __attribute__((preserve_access_index));
+
/* map of perf event fds, num_cpu * num_metric entries */
struct {
__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
@@ -15,14 +21,14 @@
struct {
__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
__uint(key_size, sizeof(u32));
- __uint(value_size, sizeof(struct bpf_perf_event_value));
+ __uint(value_size, sizeof(struct bpf_perf_event_value___local));
} fentry_readings SEC(".maps");
/* accumulated readings */
struct {
__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
__uint(key_size, sizeof(u32));
- __uint(value_size, sizeof(struct bpf_perf_event_value));
+ __uint(value_size, sizeof(struct bpf_perf_event_value___local));
} accum_readings SEC(".maps");
/* sample counts, one per cpu */
@@ -39,7 +45,7 @@
SEC("fentry/XXX")
int BPF_PROG(fentry_XXX)
{
- struct bpf_perf_event_value *ptrs[MAX_NUM_MATRICS];
+ struct bpf_perf_event_value___local *ptrs[MAX_NUM_MATRICS];
u32 key = bpf_get_smp_processor_id();
u32 i;
@@ -53,10 +59,10 @@
}
for (i = 0; i < num_metric && i < MAX_NUM_MATRICS; i++) {
- struct bpf_perf_event_value reading;
+ struct bpf_perf_event_value___local reading;
int err;
- err = bpf_perf_event_read_value(&events, key, &reading,
+ err = bpf_perf_event_read_value(&events, key, (void *)&reading,
sizeof(reading));
if (err)
return 0;
@@ -68,14 +74,14 @@
}
static inline void
-fexit_update_maps(u32 id, struct bpf_perf_event_value *after)
+fexit_update_maps(u32 id, struct bpf_perf_event_value___local *after)
{
- struct bpf_perf_event_value *before, diff;
+ struct bpf_perf_event_value___local *before, diff;
before = bpf_map_lookup_elem(&fentry_readings, &id);
/* only account samples with a valid fentry_reading */
if (before && before->counter) {
- struct bpf_perf_event_value *accum;
+ struct bpf_perf_event_value___local *accum;
diff.counter = after->counter - before->counter;
diff.enabled = after->enabled - before->enabled;
@@ -93,7 +99,7 @@
SEC("fexit/XXX")
int BPF_PROG(fexit_XXX)
{
- struct bpf_perf_event_value readings[MAX_NUM_MATRICS];
+ struct bpf_perf_event_value___local readings[MAX_NUM_MATRICS];
u32 cpu = bpf_get_smp_processor_id();
u32 i, zero = 0;
int err;
@@ -102,7 +108,8 @@
/* read all events before updating the maps, to reduce error */
for (i = 0; i < num_metric && i < MAX_NUM_MATRICS; i++) {
err = bpf_perf_event_read_value(&events, cpu + i * num_cpu,
- readings + i, sizeof(*readings));
+ (void *)(readings + i),
+ sizeof(*readings));
if (err)
return 0;
}
--
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