kernel_samsung_a34x-permissive/samples/bpf
2024-04-28 15:51:13 +02:00
..
bpf_insn.h Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
bpf_load.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
bpf_load.h Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
cookie_uid_helper_example.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
cpustat_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
cpustat_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
fds_example.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
hash_func01.h Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
lathist_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
lathist_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
load_sock_ops.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
lwt_len_hist.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
lwt_len_hist_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
lwt_len_hist_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
Makefile Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
map_perf_test_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
map_perf_test_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
offwaketime_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
offwaketime_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
parse_ldabs.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
parse_simple.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
parse_varlen.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
README.rst Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
run_cookie_uid_helper_example.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
sampleip_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sampleip_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sock_example.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sock_example.h Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sock_flags_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sockex1_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sockex1_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sockex2_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sockex2_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sockex3_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
sockex3_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
spintest_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
spintest_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
syscall_nrs.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
syscall_tp_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
syscall_tp_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
task_fd_query_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
task_fd_query_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tc_l2_redirect.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
tc_l2_redirect_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tc_l2_redirect_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcbpf1_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_basertt_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_bpf.readme Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_bufs_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_clamp_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_cong_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_iw_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_rwnd_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tcp_synrto_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cgrp2_array_pin.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cgrp2_attach.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cgrp2_attach2.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cgrp2_sock.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cgrp2_sock.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_cgrp2_sock2.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cgrp2_sock2.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_cgrp2_tc.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_cgrp2_tc_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_cls_bpf.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_current_task_under_cgroup_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_current_task_under_cgroup_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_ipip.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_lru_dist.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_lwt_bpf.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_lwt_bpf.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_map_in_map_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_map_in_map_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_overhead_kprobe_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_overhead_raw_tp_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_overhead_tp_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_overhead_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_override_return.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
test_probe_write_user_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
test_probe_write_user_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
trace_event_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
trace_event_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
trace_output_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
trace_output_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex1_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex1_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex2_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex2_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex3_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex3_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex4_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex4_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex5_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex5_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex6_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex6_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex7_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
tracex7_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp1_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp1_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp2_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp2skb_meta.sh Import A346BXXU1AWB9 kernel source 2024-04-28 15:49:01 +02:00
xdp2skb_meta_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_adjust_tail_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_adjust_tail_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_fwd_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_fwd_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_monitor_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_monitor_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_redirect_cpu_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_redirect_cpu_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_redirect_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_redirect_map_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_redirect_map_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_redirect_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_router_ipv4_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_router_ipv4_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_rxq_info_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_rxq_info_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_sample_pkts_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_sample_pkts_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_tx_iptunnel_common.h Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_tx_iptunnel_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdp_tx_iptunnel_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdpsock.h Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdpsock_kern.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00
xdpsock_user.c Import A346BXXU4BWK2 kernel source 2024-04-28 15:51:13 +02:00

eBPF sample programs
====================

This directory contains a test stubs, verifier test-suite and examples
for using eBPF. The examples use libbpf from tools/lib/bpf.

Build dependencies
==================

Compiling requires having installed:
 * clang >= version 3.4.0
 * llvm >= version 3.7.1

Note that LLVM's tool 'llc' must support target 'bpf', list version
and supported targets with command: ``llc --version``

Kernel headers
--------------

There are usually dependencies to header files of the current kernel.
To avoid installing devel kernel headers system wide, as a normal
user, simply call::

 make headers_install

This will creates a local "usr/include" directory in the git/build top
level directory, that the make system automatically pickup first.

Compiling
=========

For building the BPF samples, issue the below command from the kernel
top level directory::

 make samples/bpf/

Do notice the "/" slash after the directory name.

It is also possible to call make from this directory.  This will just
hide the the invocation of make as above with the appended "/".

Manually compiling LLVM with 'bpf' support
------------------------------------------

Since version 3.7.0, LLVM adds a proper LLVM backend target for the
BPF bytecode architecture.

By default llvm will build all non-experimental backends including bpf.
To generate a smaller llc binary one can use::

 -DLLVM_TARGETS_TO_BUILD="BPF"

Quick sniplet for manually compiling LLVM and clang
(build dependencies are cmake and gcc-c++)::

 $ git clone http://llvm.org/git/llvm.git
 $ cd llvm/tools
 $ git clone --depth 1 http://llvm.org/git/clang.git
 $ cd ..; mkdir build; cd build
 $ cmake .. -DLLVM_TARGETS_TO_BUILD="BPF;X86"
 $ make -j $(getconf _NPROCESSORS_ONLN)

It is also possible to point make to the newly compiled 'llc' or
'clang' command via redefining LLC or CLANG on the make command line::

 make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang

Cross compiling samples
-----------------------
In order to cross-compile, say for arm64 targets, export CROSS_COMPILE and ARCH
environment variables before calling make. This will direct make to build
samples for the cross target.

export ARCH=arm64
export CROSS_COMPILE="aarch64-linux-gnu-"
make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang