Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
40 lines
676 B
C
40 lines
676 B
C
// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
// Copyright (c) 2023 Red Hat
|
|
#include "vmlinux.h"
|
|
#include <bpf/bpf_tracing.h>
|
|
|
|
unsigned int nr_uprobes;
|
|
unsigned int nr_uretprobes;
|
|
|
|
SEC("uprobe")
|
|
int BPF_UPROBE(empty)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
SEC("uprobe")
|
|
int BPF_UPROBE(trace_printk)
|
|
{
|
|
char fmt[] = "perf bench uprobe %u";
|
|
|
|
bpf_trace_printk(fmt, sizeof(fmt), ++nr_uprobes);
|
|
return 0;
|
|
}
|
|
|
|
SEC("uretprobe")
|
|
int BPF_URETPROBE(empty_ret)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
SEC("uretprobe")
|
|
int BPF_URETPROBE(trace_printk_ret)
|
|
{
|
|
char fmt[] = "perf bench uretprobe %u";
|
|
|
|
bpf_trace_printk(fmt, sizeof(fmt), ++nr_uretprobes);
|
|
return 0;
|
|
}
|
|
|
|
char LICENSE[] SEC("license") = "Dual BSD/GPL";
|