32 lines
774 B
C
32 lines
774 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
|
|
|
|
#include "vmlinux.h"
|
|
#include <bpf/bpf_helpers.h>
|
|
|
|
struct bpf_stack_build_id stack_sleepable[128];
|
|
int res_sleepable;
|
|
|
|
struct bpf_stack_build_id stack_nofault[128];
|
|
int res_nofault;
|
|
|
|
SEC("uprobe.multi/./uprobe_multi:uprobe")
|
|
int uprobe_nofault(struct pt_regs *ctx)
|
|
{
|
|
res_nofault = bpf_get_stack(ctx, stack_nofault, sizeof(stack_nofault),
|
|
BPF_F_USER_STACK | BPF_F_USER_BUILD_ID);
|
|
|
|
return 0;
|
|
}
|
|
|
|
SEC("uprobe.multi.s/./uprobe_multi:uprobe")
|
|
int uprobe_sleepable(struct pt_regs *ctx)
|
|
{
|
|
res_sleepable = bpf_get_stack(ctx, stack_sleepable, sizeof(stack_sleepable),
|
|
BPF_F_USER_STACK | BPF_F_USER_BUILD_ID);
|
|
|
|
return 0;
|
|
}
|
|
|
|
char _license[] SEC("license") = "GPL";
|