Quentin Monnet be3245e22d tools: bpftool: attempt to mount tracefs if required for tracelog cmd ... As a follow-up to commit 30da46b5dc ("tools: bpftool: add a command to dump the trace pipe"), attempt to mount the tracefs virtual file system if it is not detected on the system before trying to dump content of the tracing pipe on an invocation of "bpftool prog tracelog". Usually, tracefs in automatically mounted by debugfs when the user tries to access it (e.g. "ls /sys/kernel/debug/tracing" mounts the tracefs). So if we failed to find it, it is probably that debugfs is not here either. Therefore, we just attempt a single mount, at a location that does not involve debugfs: /sys/kernel/tracing. Suggested-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-12-18 14:47:17 +01:00
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accounting
arch	tools arch x86: Update tools's copy of cpufeatures.h	2018-11-19 12:27:07 -08:00
bpf	tools: bpftool: attempt to mount tracefs if required for tracelog cmd	2018-12-18 14:47:17 +01:00
build	tools build feature: Check if get_current_dir_name() is available	2018-11-19 12:12:17 -08:00
cgroup
crypto
firewire
gpio
hv
iio
include	tools/bpf: sync btf.h header from kernel to tools	2018-12-18 01:11:59 +01:00
kvm/kvm_stat
laptop
leds
lib	bpf: libbpf: fix memleak by freeing line_info	2018-12-18 01:16:23 +01:00
memory-model
nfsd
objtool	objtool: Fix segfault in .cold detection with -ffunction-sections	2018-11-20 18:59:00 +01:00
pci
pcmcia
perf	perf tools beauty ioctl: Support new ISO7816 commands	2018-11-19 12:38:50 -08:00
power	tools cpupower: Override CFLAGS assignments	2018-11-06 08:54:16 -07:00
scripts
spi
testing	tools/bpf: check precise {func, line, jited_line}_info_rec_size in test_btf	2018-12-18 14:46:32 +01:00
thermal/tmon
time
usb
virtio
vm
wmi
Makefile