Song Liu d4b4dd6ce7 libbpf: Print hint when PERF_EVENT_IOC_SET_BPF returns -EPROTO ...

The kernel prevents potential unwinder warnings and crashes by blocking
BPF program with bpf_get_[stack|stackid] on perf_event without
PERF_SAMPLE_CALLCHAIN, or with exclude_callchain_[kernel|user]. Print a
hint message in libbpf to help the user debug such issues.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200723180648.1429892-4-songliubraving@fb.com

2020-07-25 20:16:35 -07:00

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accounting

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arch

tools arch kvm: Sync kvm headers with the kernel sources

2020-07-17 09:39:16 -03:00

bootconfig

tools/bootconfig: Add testcase for show-command and quotes test

2020-06-16 21:21:03 -04:00

bpf

tools/bpftool: Add bpftool support for bpf map element iterator

2020-07-25 20:16:33 -07:00

build

tools/bpftool: Generalize BPF skeleton support and generate vmlinux.h

2020-06-22 17:01:48 -07:00

cgroup

Merge branch 'block-5.7' into for-5.8/block

2020-05-09 16:13:58 -06:00

debugging

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edid

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firewire

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firmware

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gpio

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hv

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iio

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include

bpf: Implement bpf iterator for map elements

2020-07-25 20:16:32 -07:00

io_uring

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kvm/kvm_stat

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laptop

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leds

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lib

libbpf: Print hint when PERF_EVENT_IOC_SET_BPF returns -EPROTO

2020-07-25 20:16:35 -07:00

memory-model

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nfsd

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objtool

Merge tag 'objtool_urgent_for_5.8_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-06-28 10:16:15 -07:00

pci

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pcmcia

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perf

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-07-25 17:49:04 -07:00

power

Merge branch 'acpica'

2020-06-10 17:27:28 +02:00

scripts

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spi

spi: tools: Make default_tx/rx and input_tx static

2020-06-11 16:27:24 +01:00

testing

selftests/bpf: Add a test for out of bound rdonly buf access

2020-07-25 20:16:34 -07:00

thermal/tmon

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time

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usb

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virtio

tools/virtio: Use tools/include/list.h instead of stubs

2020-06-22 12:34:22 -04:00

vm

tools/vm/page_owner_sort.c: filter out unneeded line

2020-06-03 20:09:49 -07:00

wmi

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Makefile

bpf: Compile resolve_btfids tool at kernel compilation start

2020-07-13 10:42:02 -07:00