diff options
| author |   Delyan Kratunov <delyank@fb.com> | 2022-06-14 23:10:47 +0000 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-06-16 19:27:30 -0700 |
| commit | c4cac71fc8a55cebd9abf30a3b287063be34b512 (patch) | |
| tree | 4f2ca31442bb5277d8259a060c83d5bc263fa51f /tools/lib/bpf/libbpf.c | |
| parent | bpf: allow sleepable uprobe programs to attach (diff) | |
| download | linux-dev-c4cac71fc8a55cebd9abf30a3b287063be34b512.tar.xz linux-dev-c4cac71fc8a55cebd9abf30a3b287063be34b512.zip | |
libbpf: add support for sleepable uprobe programs
Add section mappings for u(ret)probe.s programs.
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Delyan Kratunov <delyank@fb.com>
Link: https://lore.kernel.org/r/aedbc3b74f3523f00010a7b0df8f3388cca59f16.1655248076.git.delyank@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib/bpf/libbpf.c')
| -rw-r--r-- | tools/lib/bpf/libbpf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index d989b0a17a89..49e359cd34df 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -9177,8 +9177,10 @@ static const struct bpf_sec_def section_defs[] = { SEC_DEF("sk_reuseport", SK_REUSEPORT, BPF_SK_REUSEPORT_SELECT, SEC_ATTACHABLE | SEC_SLOPPY_PFX), SEC_DEF("kprobe+", KPROBE, 0, SEC_NONE, attach_kprobe), SEC_DEF("uprobe+", KPROBE, 0, SEC_NONE, attach_uprobe), + SEC_DEF("uprobe.s+", KPROBE, 0, SEC_SLEEPABLE, attach_uprobe), SEC_DEF("kretprobe+", KPROBE, 0, SEC_NONE, attach_kprobe), SEC_DEF("uretprobe+", KPROBE, 0, SEC_NONE, attach_uprobe), + SEC_DEF("uretprobe.s+", KPROBE, 0, SEC_SLEEPABLE, attach_uprobe), SEC_DEF("kprobe.multi+", KPROBE, BPF_TRACE_KPROBE_MULTI, SEC_NONE, attach_kprobe_multi), SEC_DEF("kretprobe.multi+", KPROBE, BPF_TRACE_KPROBE_MULTI, SEC_NONE, attach_kprobe_multi), SEC_DEF("usdt+", KPROBE, 0, SEC_NONE, attach_usdt), @@ -11571,7 +11573,8 @@ static int attach_uprobe(const struct bpf_program *prog, long cookie, struct bpf break; case 3: case 4: - opts.retprobe = strcmp(probe_type, "uretprobe") == 0; + opts.retprobe = strcmp(probe_type, "uretprobe") == 0 || + strcmp(probe_type, "uretprobe.s") == 0; if (opts.retprobe && offset != 0) { pr_warn("prog '%s': uretprobes do not support offset specification\n", prog->name); |