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| author |   Alexei Starovoitov <ast@kernel.org> | 2018-01-26 16:42:07 -0800 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-01-26 16:42:08 -0800 |
| commit | 1651e39e4a1adacd24e953aae46ba9b66d996035 (patch) | |
| tree | 7294f8492555ec8d65ee23534f38c62d0e6029d5 /arch/sparc | |
| parent | samples/bpf: Partially fixes the bpf.o build (diff) | |
| parent | bpf: add further test cases around div/mod and others (diff) | |
| download | linux-dev-1651e39e4a1adacd24e953aae46ba9b66d996035.tar.xz linux-dev-1651e39e4a1adacd24e953aae46ba9b66d996035.zip | |
Merge branch 'bpf-improvements-and-fixes'
Daniel Borkmann says:
====================
This set contains a small cleanup in cBPF prologue generation and
otherwise fixes an outstanding issue related to BPF to BPF calls
and exception handling. For details please see related patches.
Last but not least, BPF selftests is extended with several new
test cases.
Thanks!
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/net/bpf_jit_comp_64.c | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/sparc/net/bpf_jit_comp_64.c b/arch/sparc/net/bpf_jit_comp_64.c index 50a24d7bd4c5..48a25869349b 100644 --- a/arch/sparc/net/bpf_jit_comp_64.c +++ b/arch/sparc/net/bpf_jit_comp_64.c @@ -967,31 +967,17 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx) emit_alu(MULX, src, dst, ctx); break; case BPF_ALU | BPF_DIV | BPF_X: - emit_cmp(src, G0, ctx); - emit_branch(BE|ANNUL, ctx->idx, ctx->epilogue_offset, ctx); - emit_loadimm(0, bpf2sparc[BPF_REG_0], ctx); - emit_write_y(G0, ctx); emit_alu(DIV, src, dst, ctx); break; - case BPF_ALU64 | BPF_DIV | BPF_X: - emit_cmp(src, G0, ctx); - emit_branch(BE|ANNUL, ctx->idx, ctx->epilogue_offset, ctx); - emit_loadimm(0, bpf2sparc[BPF_REG_0], ctx); - emit_alu(UDIVX, src, dst, ctx); break; - case BPF_ALU | BPF_MOD | BPF_X: { const u8 tmp = bpf2sparc[TMP_REG_1]; ctx->tmp_1_used = true; - emit_cmp(src, G0, ctx); - emit_branch(BE|ANNUL, ctx->idx, ctx->epilogue_offset, ctx); - emit_loadimm(0, bpf2sparc[BPF_REG_0], ctx); - emit_write_y(G0, ctx); emit_alu3(DIV, dst, src, tmp, ctx); emit_alu3(MULX, tmp, src, tmp, ctx); @@ -1003,10 +989,6 @@ static int build_insn(const struct bpf_insn *insn, struct jit_ctx *ctx) ctx->tmp_1_used = true; - emit_cmp(src, G0, ctx); - emit_branch(BE|ANNUL, ctx->idx, ctx->epilogue_offset, ctx); - emit_loadimm(0, bpf2sparc[BPF_REG_0], ctx); - emit_alu3(UDIVX, dst, src, tmp, ctx); emit_alu3(MULX, tmp, src, tmp, ctx); emit_alu3(SUB, dst, tmp, dst, ctx); |