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selftests: bpf: extend sub-register mode compilation to all bpf object files

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At the moment, we only do extra sub-register mode compilation on bpf object
files used by "test_progs". These object files are really loaded and
executed.

This patch further extends sub-register mode compilation to all bpf object
files, even those without corresponding runtime tests. Because this could
help testing LLVM sub-register code-gen, kernel bpf selftest has much more
C testcases with reasonable size and complexity compared with LLVM
testsuite which only contains unit tests.

There were some file duplication inside BPF_OBJ_FILES_DUAL_COMPILE which
is removed now.

Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jiong Wang 2019-02-11 12:01:19 +00:00 committed by Alexei Starovoitov
parent 1727a9dce6
commit 4836b4637e
1 changed files with 7 additions and 13 deletions
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20
tools/testing/selftests/bpf/Makefile
View file

@ -36,20 +36,14 @@ BPF_OBJ_FILES = \
get_cgroup_id_kern.o socket_cookie_prog.o test_select_reuseport_kern.o \
test_skb_cgroup_id_kern.o bpf_flow.o netcnt_prog.o test_xdp_vlan.o \
xdp_dummy.o test_map_in_map.o test_spin_lock.o test_map_lock.o \
test_sock_fields_kern.o
# Objects are built with default compilation flags and with sub-register
# code-gen enabled.
BPF_OBJ_FILES_DUAL_COMPILE = \
test_pkt_access.o test_pkt_access.o test_xdp.o test_adjust_tail.o \
test_l4lb.o test_l4lb_noinline.o test_xdp_noinline.o test_tcp_estats.o \
test_pkt_access.o test_xdp.o test_adjust_tail.o test_l4lb.o \
test_l4lb_noinline.o test_xdp_noinline.o test_tcp_estats.o \
test_obj_id.o test_pkt_md_access.o test_tracepoint.o \
test_stacktrace_map.o test_stacktrace_map.o test_stacktrace_build_id.o \
test_stacktrace_build_id.o test_get_stack_rawtp.o \
test_get_stack_rawtp.o test_tracepoint.o test_sk_lookup_kern.o \
test_queue_map.o test_stack_map.o
test_stacktrace_map.o test_stacktrace_build_id.o \
test_get_stack_rawtp.o test_sk_lookup_kern.o test_queue_map.o \
test_stack_map.o test_sock_fields_kern.o
TEST_GEN_FILES = $(BPF_OBJ_FILES) $(BPF_OBJ_FILES_DUAL_COMPILE)
TEST_GEN_FILES = $(BPF_OBJ_FILES)
# Also test sub-register code-gen if LLVM + kernel both has eBPF v3 processor
# support which is the first version to contain both ALU32 and JMP32
@ -59,7 +53,7 @@ SUBREG_CODEGEN := $(shell echo "int cal(int a) { return a > 0; }" | \
$(LLC) -mattr=+alu32 -mcpu=probe 2>&1 | \
grep 'if w')
ifneq ($(SUBREG_CODEGEN),)
TEST_GEN_FILES += $(patsubst %.o,alu32/%.o, $(BPF_OBJ_FILES_DUAL_COMPILE))
TEST_GEN_FILES += $(patsubst %.o,alu32/%.o, $(BPF_OBJ_FILES))
endif
# Order correspond to 'make run_tests' order