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2019-08-07selftests/bpf: add CO-RE relocs enum/ptr/func_proto testsAndrii Nakryiko10-0/+167
Test CO-RE relocation handling of ints, enums, pointers, func protos, etc. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-07selftests/bpf: add CO-RE relocs array testsAndrii Nakryiko11-0/+201
Add tests for various array handling/relocation scenarios. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-07selftests/bpf: add CO-RE relocs nesting testsAndrii Nakryiko16-0/+421
Add a bunch of test validating correct handling of nested structs/unions. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-07selftests/bpf: add CO-RE relocs struct flavors testsAndrii Nakryiko5-0/+117
Add tests verifying that BPF program can use various struct/union "flavors" to extract data from the same target struct/union. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-07selftests/bpf: add CO-RE relocs testing setupAndrii Nakryiko2-0/+165
Add CO-RE relocation test runner. Add one simple test validating that libbpf's logic for searching for kernel image and loading BTF out of it works. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-07selftests/bpf: add BPF_CORE_READ relocatable read macroAndrii Nakryiko1-0/+20
Add BPF_CORE_READ macro used in tests to do bpf_core_read(), which automatically captures offset relocation. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-06selftests/bpf: test_progs: drop extra trailing tabStanislav Fomichev1-1/+1
Small (un)related cleanup. Cc: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-06selftests/bpf: test_progs: test__printf -> printfStanislav Fomichev10-38/+22
Now that test__printf is a simple wraper around printf, let's drop it (and test__vprintf as well). Cc: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-06selftests/bpf: test_progs: switch to open_memstreamStanislav Fomichev2-56/+62
Use open_memstream to override stdout during test execution. The copy of the original stdout is held in env.stdout and used to print subtest info and dump failed log. test_{v,}printf are now simple wrappers around stdout and will be removed in the next patch. v5: * fix -v crash by always setting env.std{in,err} (Alexei Starovoitov) * drop force_log check from stdio_hijack (Andrii Nakryiko) v4: * one field per line for stdout/stderr (Andrii Nakryiko) v3: * don't do strlen over log_buf, log_cnt has it already (Andrii Nakryiko) v2: * add ifdef __GLIBC__ around open_memstream (maybe pointless since we already depend on glibc for argp_parse) * hijack stderr as well (Andrii Nakryiko) * don't hijack for every test, do it once (Andrii Nakryiko) * log_cap -> log_size (Andrii Nakryiko) * do fseeko in a proper place (Andrii Nakryiko) * check open_memstream returned value (Andrii Nakryiko) Cc: Andrii Nakryiko <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-06selftests/bpf: add loop test 5Alexei Starovoitov2-0/+33
Add a test with multiple exit conditions. It's not an infinite loop only when the verifier can properly track all math on variable 'i' through all possible ways of executing this loop. barrier()s are needed to disable llvm optimization that combines multiple branches into fewer branches. Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Yonghong Song <[email protected]>
2019-08-06selftests/bpf: add loop test 4Alexei Starovoitov2-0/+19
Add a test that returns a 'random' number between [0, 2^20) If state pruning is not working correctly for loop body the number of processed insns will be 2^20 * num_of_insns_in_loop_body and the program will be rejected. Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Acked-by: Yonghong Song <[email protected]>
2019-08-05selftests/bpf: reduce time to execute test_xdp_vlan.shJesper Dangaard Brouer1-5/+5
Given the increasing number of BPF selftests, it makes sense to reduce the time to execute these tests. The ping parameters are adjusted to reduce the time from measures 9 sec to approx 2.8 sec. Signed-off-by: Jesper Dangaard Brouer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-08-05selftests/bpf: add wrapper scripts for test_xdp_vlan.shJesper Dangaard Brouer4-2/+24
In-order to test both native-XDP (xdpdrv) and generic-XDP (xdpgeneric) create two wrapper test scripts, that start the test_xdp_vlan.sh script with these modes. Signed-off-by: Jesper Dangaard Brouer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-08-05bpf: fix XDP vlan selftests test_xdp_vlan.shJesper Dangaard Brouer1-6/+36
Change BPF selftest test_xdp_vlan.sh to (default) use generic XDP. This selftest was created together with a fix for generic XDP, in commit 297249569932 ("net: fix generic XDP to handle if eth header was mangled"). And was suppose to catch if generic XDP was broken again. The tests are using veth and assumed that veth driver didn't support native driver XDP, thus it used the (ip link set) 'xdp' attach that fell back to generic-XDP. But veth gained native-XDP support in 948d4f214fde ("veth: Add driver XDP"), which caused this test script to use native-XDP. Fixes: 948d4f214fde ("veth: Add driver XDP") Fixes: 97396ff0bc2d ("selftests/bpf: add XDP selftests for modifying and popping VLAN headers") Signed-off-by: Jesper Dangaard Brouer <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-08-01selftests/bpf: extend sockopt_sk selftest with TCP_CONGESTION use caseStanislav Fomichev2-0/+47
Ignore SOL_TCP:TCP_CONGESTION in getsockopt and always override SOL_TCP:TCP_CONGESTION with "cubic" in setsockopt hook. Call setsockopt(SOL_TCP, TCP_CONGESTION) with short optval ("nv") to make sure BPF program has enough buffer space to replace it with "cubic". Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-08-01selftests/bpf: tests for jmp to 1st insnAlexei Starovoitov1-0/+28
Add 2 tests that check JIT code generation to jumps to 1st insn. 1st test is similar to syzbot reproducer. The backwards branch is never taken at runtime. 2nd test has branch to 1st insn that executes. The test is written as two bpf functions, since it's not possible to construct valid single bpf program that jumps to 1st insn. Signed-off-by: Alexei Starovoitov <[email protected]> Acked-by: Song Liu <[email protected]>
2019-07-30selftests/bpf: fix clearing buffered output between tests/subtestsAndrii Nakryiko1-1/+1
Clear buffered output once test or subtests finishes even if test was successful. Not doing this leads to accumulation of output from previous tests and on first failed tests lots of irrelevant output will be dumped, greatly confusing things. v1->v2: fix Fixes tag, add more context to patch Fixes: 3a516a0a3a7b ("selftests/bpf: add sub-tests support for test_progs") Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-30selftests/bpf: add test for bpf_tcp_gen_syncookiePetar Penkov3-13/+99
Modify the existing bpf_tcp_check_syncookie test to also generate a SYN cookie, pass the packet to the kernel, and verify that the two cookies are the same (and both valid). Since cloned SKBs are skipped during generic XDP, this test does not issue a SYN cookie when run in XDP mode. We therefore only check that a valid SYN cookie was issued at the TC hook. Additionally, verify that the MSS for that SYN cookie is within expected range. Signed-off-by: Petar Penkov <[email protected]> Reviewed-by: Lorenz Bauer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-30selftests/bpf: bpf_tcp_gen_syncookie->bpf_helpersPetar Penkov1-0/+3
Expose bpf_tcp_gen_syncookie to selftests. Signed-off-by: Petar Penkov <[email protected]> Reviewed-by: Lorenz Bauer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-29tools: Add definitions for devmap_hash map typeToke Høiland-Jørgensen1-0/+16
This adds selftest and bpftool updates for the devmap_hash map type. Signed-off-by: Toke Høiland-Jørgensen <[email protected]> Acked-by: Jesper Dangaard Brouer <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: convert send_signal.c to use subtestsAndrii Nakryiko1-3/+6
Convert send_signal set of tests to be exposed as three sub-tests. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: convert bpf_verif_scale.c to sub-tests APIAndrii Nakryiko1-37/+40
Expose each BPF verifier scale test as individual sub-test to allow independent results output and test selection. Test run results now look like this: $ sudo ./test_progs -t verif/ #3/1 loop3.o:OK #3/2 test_verif_scale1.o:OK #3/3 test_verif_scale2.o:OK #3/4 test_verif_scale3.o:OK #3/5 pyperf50.o:OK #3/6 pyperf100.o:OK #3/7 pyperf180.o:OK #3/8 pyperf600.o:OK #3/9 pyperf600_nounroll.o:OK #3/10 loop1.o:OK #3/11 loop2.o:OK #3/12 strobemeta.o:OK #3/13 strobemeta_nounroll1.o:OK #3/14 strobemeta_nounroll2.o:OK #3/15 test_sysctl_loop1.o:OK #3/16 test_sysctl_loop2.o:OK #3/17 test_xdp_loop.o:OK #3/18 test_seg6_loop.o:OK #3 bpf_verif_scale:OK Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: add sub-tests support for test_progsAndrii Nakryiko2-29/+185
Allow tests to have their own set of sub-tests. Also add ability to do test/subtest selection using `-t <test-name>/<subtest-name>` and `-n <test-nums-set>/<subtest-nums-set>`, as an extension of existing -t/-n selector options. For the <test-num-set> format: it's a comma-separated list of either individual test numbers (1-based), or range of test numbers. E.g., all of the following are valid sets of test numbers: - 10 - 1,2,3 - 1-3 - 5-10,1,3-4 '/<subtest' part is optional, but has the same format. E.g., to select test #3 and its sub-tests #10 through #15, use: -t 3/10-15. Similarly, to select tests by name, use `-t verif/strobe`: $ sudo ./test_progs -t verif/strobe #3/12 strobemeta.o:OK #3/13 strobemeta_nounroll1.o:OK #3/14 strobemeta_nounroll2.o:OK #3 bpf_verif_scale:OK Summary: 1/3 PASSED, 0 FAILED Example of using subtest API is in the next patch, converting bpf_verif_scale.c tests to use sub-tests. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: abstract away test log outputAndrii Nakryiko12-73/+183
This patch changes how test output is printed out. By default, if test had no errors, the only output will be a single line with test number, name, and verdict at the end, e.g.: #31 xdp:OK If test had any errors, all log output captured during test execution will be output after test completes. It's possible to force output of log with `-v` (`--verbose`) option, in which case output won't be buffered and will be output immediately. To support this, individual tests are required to use helper methods for logging: `test__printf()` and `test__vprintf()`. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftest/bpf: centralize libbpf logging management for test_progsAndrii Nakryiko3-12/+38
Make test_progs test runner own libbpf logging. Also introduce two levels of verbosity: -v and -vv. First one will be used in subsequent patches to enable test log output always. Second one increases verbosity level of libbpf logging further to include debug output as well. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: add test selectors by number and name to test_progsAndrii Nakryiko1-4/+39
Add ability to specify either test number or test name substring to narrow down a set of test to run. Usage: sudo ./test_progs -n 1 sudo ./test_progs -t attach_probe Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: revamp test_progs to allow more controlAndrii Nakryiko2-15/+77
Refactor test_progs to allow better control on what's being run. Also use argp to do argument parsing, so that it's easier to keep adding more options. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-27selftests/bpf: prevent headers to be compiled as C codeAndrii Nakryiko1-3/+3
Apprently listing header as a normal dependency for a binary output makes it go through compilation as if it was C code. This currently works without a problem, but in subsequent commits causes problems for differently generated test.h for test_progs. Marking those headers as order-only dependency solves the issue. Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-25selftests/bpf: support BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAPStanislav Fomichev2-0/+72
Exit as soon as we found that packet is encapped when BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP is passed. Add appropriate selftest cases. v2: * Subtract sizeof(struct iphdr) from .iph_inner.tot_len (Willem de Bruijn) Acked-by: Petar Penkov <[email protected]> Acked-by: Willem de Bruijn <[email protected]> Acked-by: Song Liu <[email protected]> Cc: Song Liu <[email protected]> Cc: Willem de Bruijn <[email protected]> Cc: Petar Penkov <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-25bpf/flow_dissector: support ipv6 flow_label and ↵Stanislav Fomichev2-0/+56
BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL Add support for exporting ipv6 flow label via bpf_flow_keys. Export flow label from bpf_flow.c and also return early when BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL is passed. Acked-by: Petar Penkov <[email protected]> Acked-by: Willem de Bruijn <[email protected]> Acked-by: Song Liu <[email protected]> Cc: Song Liu <[email protected]> Cc: Willem de Bruijn <[email protected]> Cc: Petar Penkov <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-25selftests/bpf: support BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAGStanislav Fomichev2-7/+155
bpf_flow.c: exit early unless BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG is passed in flags. Also, set ip_proto earlier, this makes sure we have correct value with fragmented packets. Add selftest cases to test ipv4/ipv6 fragments and skip eth_get_headlen tests that don't have BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG flag. eth_get_headlen calls flow dissector with BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG flag so we can't run tests that have different set of input flags against it. v2: * sefltests -> selftests (Willem de Bruijn) * Reword a comment about eth_get_headlen flags (Song Liu) Acked-by: Petar Penkov <[email protected]> Acked-by: Willem de Bruijn <[email protected]> Acked-by: Song Liu <[email protected]> Cc: Song Liu <[email protected]> Cc: Willem de Bruijn <[email protected]> Cc: Petar Penkov <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-25selftests/bpf: Add selftests for bpf_perf_event_outputAllan Zhang2-1/+105
Software event output is only enabled by a few prog types. This test is to ensure that all supported types are enabled for bpf_perf_event_output successfully. Signed-off-by: Allan Zhang <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-23selftests/bpf: remove perf buffer helpersAndrii Nakryiko2-134/+0
libbpf's perf_buffer API supersedes trace_helper.h's helpers. Remove those helpers after all existing users were already moved to perf_buffer API. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-23selftests/bpf: switch test_tcpnotify to perf_buffer APIAndrii Nakryiko1-54/+36
Switch test_tcpnotify test to use libbpf's perf_buffer API instead of re-implementing portion of it. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-23selftests/bpf: convert test_get_stack_raw_tp to perf_buffer APIAndrii Nakryiko2-36/+44
Convert test_get_stack_raw_tp test to new perf_buffer API. Signed-off-by: Andrii Nakryiko <[email protected]> Acked-by: Song Liu <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-23selftests/bpf: add another gso_segs accessEric Dumazet1-0/+11
Use BPF_REG_1 for source and destination of gso_segs read, to exercise "bpf: fix access to skb_shared_info->gso_segs" fix. Signed-off-by: Eric Dumazet <[email protected]> Suggested-by: Stanislav Fomichev <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-22selftests/bpf: fix sendmsg6_prog on s390Ilya Leoshkevich1-2/+1
"sendmsg6: rewrite IP & port (C)" fails on s390, because the code in sendmsg_v6_prog() assumes that (ctx->user_ip6[0] & 0xFFFF) refers to leading IPv6 address digits, which is not the case on big-endian machines. Since checking bitwise operations doesn't seem to be the point of the test, replace two short comparisons with a single int comparison. Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Andrey Ignatov <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
2019-07-18selftests/bpf: fix test_xdp_noinline on s390Ilya Leoshkevich1-8/+9
test_xdp_noinline fails on s390 due to a handful of endianness issues. Use ntohs for parsing eth_proto. Replace bswaps with ntohs/htons. Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Vasily Gorbik <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-18selftests/bpf: fix "valid read map access into a read-only array 1" on s390Ilya Leoshkevich1-1/+1
This test looks up a 32-bit map element and then loads it using a 64-bit load. This does not work on s390, which is a big-endian machine. Since the point of this test doesn't seem to be loading a smaller value using a larger load, simply use a 32-bit load. Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-16selftests/bpf: fix perf_buffer on s390Ilya Leoshkevich3-17/+11
perf_buffer test fails for exactly the same reason test_attach_probe used to fail: different nanosleep syscall kprobe name. Reuse the test_attach_probe fix. Fixes: ee5cf82ce04a ("selftests/bpf: test perf buffer API") Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-16selftests/bpf: structure test_{progs, maps, verifier} test runners uniformlyAndrii Nakryiko1-14/+10
It's easier to follow the logic if it's structured the same. There is just slight difference between test_progs/test_maps and test_verifier. test_verifier's verifier/*.c files are not really compilable C files (they are more of include headers), so they can't be specified as explicit dependencies of test_verifier. Cc: Alexei Starovoitov <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-16selftests/bpf: fix test_verifier/test_maps make dependenciesAndrii Nakryiko1-3/+3
e46fc22e60a4 ("selftests/bpf: make directory prerequisites order-only") exposed existing problem in Makefile for test_verifier and test_maps tests: their dependency on auto-generated header file with a list of all tests wasn't recorded explicitly. This patch fixes these issues. Fixes: 51a0e301a563 ("bpf: Add BPF_MAP_TYPE_SK_STORAGE test to test_maps") Fixes: 6b7b6995c43e ("selftests: bpf: tests.h should depend on .c files, not the output") Cc: Ilya Leoshkevich <[email protected]> Cc: Stanislav Fomichev <[email protected]> Cc: Martin KaFai Lau <[email protected]> Signed-off-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-16selftests/bpf: skip nmi test when perf hw events are disabledIlya Leoshkevich1-1/+32
Some setups (e.g. virtual machines) might run with hardware perf events disabled. If this is the case, skip the test_send_signal_nmi test. Add a separate test involving a software perf event. This allows testing the perf event path regardless of hardware perf event support. Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-16selftests/bpf: fix "alu with different scalars 1" on s390Ilya Leoshkevich1-1/+1
BPF_LDX_MEM is used to load the least significant byte of the retrieved test_val.index, however, on big-endian machines it ends up retrieving the most significant byte. Change the test to load the whole int in order to make it endianness-independent. Signed-off-by: Ilya Leoshkevich <[email protected]> Signed-off-by: Alexei Starovoitov <[email protected]>
2019-07-16selftests/bpf: remove logic duplication in test_verifierAndrii Nakryiko1-20/+15
test_verifier tests can specify single- and multi-runs tests. Internally logic of handling them is duplicated. Get rid of it by making single run retval/data specification to be a first run spec. Signed-off-by: Andrii Nakryiko <[email protected]> Cc: Krzesimir Nowak <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
2019-07-15selftests/bpf: add selftests for wide loadsStanislav Fomichev1-0/+37
Mirror existing wide store tests with wide loads. The only significant difference is expected error string. Cc: Yonghong Song <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
2019-07-15selftests/bpf: rename verifier/wide_store.c to verifier/wide_access.cStanislav Fomichev2-36/+36
Move the file and rename internal BPF_SOCK_ADDR define to BPF_SOCK_ADDR_STORE. This selftest will be extended in the next commit with the wide loads. Cc: Yonghong Song <[email protected]> Signed-off-by: Stanislav Fomichev <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
2019-07-15selftests/bpf: put test_stub.o into $(OUTPUT)Ilya Leoshkevich1-2/+5
Add a rule to put test_stub.o in $(OUTPUT) and change the references to it accordingly. This prevents test_stub.o from being created in the source directory. Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
2019-07-15selftests/bpf: make directory prerequisites order-onlyIlya Leoshkevich1-8/+8
When directories are used as prerequisites in Makefiles, they can cause a lot of unnecessary rebuilds, because a directory is considered changed whenever a file in this directory is added, removed or modified. If the only thing a target is interested in is the existence of the directory it depends on, which is the case for selftests/bpf, this directory should be specified as an order-only prerequisite: it would still be created in case it does not exist, but it would not trigger a rebuild of a target in case it's considered changed. Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
2019-07-15selftests/bpf: fix attach_probe on s390Ilya Leoshkevich1-0/+2
attach_probe test fails, because it cannot install a kprobe on a non-existent sys_nanosleep symbol. Use the correct symbol name for the nanosleep syscall on 64-bit s390. Don't bother adding one for 31-bit mode, since tests are compiled only in 64-bit mode. Fixes: 1e8611bbdfc9 ("selftests/bpf: add kprobe/uprobe selftests") Signed-off-by: Ilya Leoshkevich <[email protected]> Acked-by: Vasily Gorbik <[email protected]> Acked-by: Andrii Nakryiko <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]>
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