redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

net: filter: test fill/spill of all M[] regs 

This test for classic BPF probes stores and load combination
via X on all 16 registers of the scratch memory store. It
initially loads integer 100 and passes this value around
to each register while incrementing it every time, thus we
expect to have 116 as a result. Might be useful for JIT
testing.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
wifi-calibration
Daniel Borkmann 2014-05-26 20:17:34 +02:00 committed by David S. Miller
parent c4438f03ca
commit 108cc22a93
1 changed files with 90 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

90
lib/test_bpf.c
View File

@ -1485,6 +1485,96 @@ static struct bpf_test tests[] = {
{ },
{ },
},
{ /* Mainly checking JIT here. */
"M[]: STX + LDX",
.u.insns = {
BPF_STMT(BPF_LDX | BPF_IMM, 100),
BPF_STMT(BPF_STX, 0),
BPF_STMT(BPF_LDX | BPF_MEM, 0),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 1),
BPF_STMT(BPF_LDX | BPF_MEM, 1),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 2),
BPF_STMT(BPF_LDX | BPF_MEM, 2),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 3),
BPF_STMT(BPF_LDX | BPF_MEM, 3),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 4),
BPF_STMT(BPF_LDX | BPF_MEM, 4),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 5),
BPF_STMT(BPF_LDX | BPF_MEM, 5),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 6),
BPF_STMT(BPF_LDX | BPF_MEM, 6),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 7),
BPF_STMT(BPF_LDX | BPF_MEM, 7),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 8),
BPF_STMT(BPF_LDX | BPF_MEM, 8),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 9),
BPF_STMT(BPF_LDX | BPF_MEM, 9),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 10),
BPF_STMT(BPF_LDX | BPF_MEM, 10),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 11),
BPF_STMT(BPF_LDX | BPF_MEM, 11),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 12),
BPF_STMT(BPF_LDX | BPF_MEM, 12),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 13),
BPF_STMT(BPF_LDX | BPF_MEM, 13),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 14),
BPF_STMT(BPF_LDX | BPF_MEM, 14),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_STX, 15),
BPF_STMT(BPF_LDX | BPF_MEM, 15),
BPF_STMT(BPF_MISC | BPF_TXA, 0),
BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 1),
BPF_STMT(BPF_MISC | BPF_TAX, 0),
BPF_STMT(BPF_RET | BPF_A, 0),
},
CLASSIC | FLAG_NO_DATA,
{ },
{ { 0, 116 } },
},
};
static struct net_device dev;