From: Jiri Olsa <olsajiri@gmail.com>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: "Oleg Nesterov" <oleg@redhat.com>,
"Peter Zijlstra" <peterz@infradead.org>,
"Andrii Nakryiko" <andrii@kernel.org>,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, x86@kernel.org,
"Song Liu" <songliubraving@fb.com>, "Yonghong Song" <yhs@fb.com>,
"John Fastabend" <john.fastabend@gmail.com>,
"Hao Luo" <haoluo@google.com>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Masami Hiramatsu" <mhiramat@kernel.org>,
"Alan Maguire" <alan.maguire@oracle.com>,
"David Laight" <David.Laight@aculab.com>,
"Thomas Weißschuh" <thomas@t-8ch.de>,
"Ingo Molnar" <mingo@kernel.org>
Subject: Re: [PATCHv2 perf/core 13/22] selftests/bpf: Rename uprobe_syscall_executed prog to test_uretprobe_multi
Date: Fri, 16 May 2025 09:48:11 +0200 [thread overview]
Message-ID: <aCbtu2LQxHo6pgVH@krava> (raw)
In-Reply-To: <CAEf4BzZ4975boVLbDXhVkjbiY_gp=RTTzJZ9zhfXc0zrgs4obw@mail.gmail.com>
On Thu, May 15, 2025 at 10:24:42AM -0700, Andrii Nakryiko wrote:
SNIP
> > diff --git a/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c b/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
> > index 0d7f1a7db2e2..c4c3447378ba 100644
> > --- a/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
> > +++ b/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
> > @@ -8,10 +8,17 @@ struct pt_regs regs;
> > char _license[] SEC("license") = "GPL";
> >
> > int executed = 0;
> > +int pid;
> >
> > -SEC("uretprobe.multi")
> > -int test(struct pt_regs *regs)
> > +static int inc_executed(void)
> > {
> > - executed = 1;
> > + if (bpf_get_current_pid_tgid() >> 32 == pid)
> > + executed++;
>
> it's customary (and makes sense to me) with filtering like this to not
> add nestedness:
>
>
> if (bpf_get_current_pid_tgid() >> 32 != pid)
> return 0;
>
> executed += 1;
> return 0;
ok, will change
jirka
>
> > return 0;
> > }
> > +
> > +SEC("uretprobe.multi")
> > +int test_uretprobe_multi(struct pt_regs *ctx)
> > +{
> > + return inc_executed();
> > +}
> > --
> > 2.49.0
> >
next prev parent reply other threads:[~2025-05-16 7:48 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-15 12:10 [PATCHv2 perf/core 00/22] uprobes: Add support to optimize usdt probes on x86_64 Jiri Olsa
2025-05-15 12:10 ` [PATCHv2 perf/core 01/22] uprobes: Remove breakpoint in unapply_uprobe under mmap_write_lock Jiri Olsa
2025-05-19 23:48 ` Masami Hiramatsu
2025-05-20 14:16 ` Jiri Olsa
2025-05-20 14:19 ` Oleg Nesterov
2025-05-22 14:48 ` Masami Hiramatsu
2025-05-26 21:36 ` Jiri Olsa
2025-05-15 12:10 ` [PATCHv2 perf/core 02/22] uprobes: Rename arch_uretprobe_trampoline function Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 03/22] uprobes: Make copy_from_page global Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 04/22] uprobes: Add uprobe_write function Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 05/22] uprobes: Add nbytes argument to uprobe_write Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 06/22] uprobes: Add is_register argument to uprobe_write and uprobe_write_opcode Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 07/22] uprobes: Add do_ref_ctr argument to uprobe_write function Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 08/22] uprobes/x86: Add mapping for optimized uprobe trampolines Jiri Olsa
2025-05-15 17:22 ` Andrii Nakryiko
2025-05-16 7:47 ` Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 09/22] uprobes/x86: Add uprobe syscall to speed up uprobe Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 10/22] uprobes/x86: Add support to optimize uprobes Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 11/22] selftests/bpf: Import usdt.h from libbpf/usdt project Jiri Olsa
2025-05-15 17:23 ` Andrii Nakryiko
2025-05-15 12:11 ` [PATCHv2 perf/core 12/22] selftests/bpf: Reorg the uprobe_syscall test function Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 13/22] selftests/bpf: Rename uprobe_syscall_executed prog to test_uretprobe_multi Jiri Olsa
2025-05-15 17:24 ` Andrii Nakryiko
2025-05-16 7:48 ` Jiri Olsa [this message]
2025-05-15 12:11 ` [PATCHv2 perf/core 14/22] selftests/bpf: Add uprobe/usdt syscall tests Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 15/22] selftests/bpf: Add hit/attach/detach race optimized uprobe test Jiri Olsa
2025-05-15 17:31 ` Andrii Nakryiko
2025-05-16 7:48 ` Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 16/22] selftests/bpf: Add uprobe syscall sigill signal test Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 17/22] selftests/bpf: Add optimized usdt variant for basic usdt test Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 18/22] selftests/bpf: Add uprobe_regs_equal test Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 19/22] selftests/bpf: Change test_uretprobe_regs_change for uprobe and uretprobe Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 20/22] seccomp: passthrough uprobe systemcall without filtering Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 perf/core 21/22] selftests/seccomp: validate uprobe syscall passes through seccomp Jiri Olsa
2025-05-15 12:11 ` [PATCHv2 22/22] man2: Add uprobe syscall page Jiri Olsa
2025-05-15 22:08 ` Alejandro Colomar
2025-05-30 15:35 ` [PATCHv2 perf/core 00/22] uprobes: Add support to optimize usdt probes on x86_64 Oleg Nesterov
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