netdev - [PATH bpf-next 13/13] selftests: bpf: makefile support sub-register code-gen test mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1545259460-13376-14-git-send-email-jiong.wang@netronome.com>
Date:   Wed, 19 Dec 2018 17:44:20 -0500
From:   Jiong Wang <jiong.wang@...ronome.com>
To:     ast@...nel.org, daniel@...earbox.net
Cc:     netdev@...r.kernel.org, oss-drivers@...ronome.com,
        Jiong Wang <jiong.wang@...ronome.com>
Subject: [PATH bpf-next 13/13] selftests: bpf: makefile support sub-register code-gen test mode

Add a new BPF_SELFTEST_32BIT variable to enable sub-register code-gen test
mode. For example:

  make BPF_SELFTEST_32BIT=1 -C tools/testing/selftests/bpf run_tests

will compile all bpf C program with sub-register code-gen enabled, ALU32
and JMP32 instructions will be used.

Signed-off-by: Jiong Wang <jiong.wang@...ronome.com>
---
 tools/testing/selftests/bpf/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 73aa6d8..70bccf6 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -146,6 +146,10 @@ endif
 endif
 endif
 
+ifneq ($(BPF_SELFTEST_32BIT),)
+	LLC_FLAGS += -mattr=alu32
+endif
+
 # Have one program compiled without "-target bpf" to test whether libbpf loads
 # it successfully
 $(OUTPUT)/test_xdp.o: test_xdp.c
-- 
2.7.4