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| author | Alexei Starovoitov <alexei.starovoitov@gmail.com> | 2017-01-17 07:26:17 +0000 |
|---|---|---|
| committer | Alexei Starovoitov <alexei.starovoitov@gmail.com> | 2017-01-17 07:26:17 +0000 |
| commit | e4975487f53110b32bca15878407dc1549ac4b74 (patch) | |
| tree | b9b4f289cb462b06f9e7e97e07a21e6e2464defc /llvm/test/CodeGen/BPF/cc_args.ll | |
| parent | c0857a40e7976c06612ab8f4a5335e99eab3f4ff (diff) | |
| download | bcm5719-llvm-e4975487f53110b32bca15878407dc1549ac4b74.tar.gz bcm5719-llvm-e4975487f53110b32bca15878407dc1549ac4b74.zip | |
[bpf] error when unknown bpf helper is called
Emit error when BPF backend sees a call to a global function or to an external symbol.
The kernel verifier only allows calls to predefined helpers from bpf.h
which are defined in 'enum bpf_func_id'. Such calls in assembler must
look like 'call [1-9]+' where number matches bpf_func_id.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
llvm-svn: 292204
Diffstat (limited to 'llvm/test/CodeGen/BPF/cc_args.ll')
| -rw-r--r-- | llvm/test/CodeGen/BPF/cc_args.ll | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/test/CodeGen/BPF/cc_args.ll b/llvm/test/CodeGen/BPF/cc_args.ll index 4ad7a22c7e2..a2ac03f0da1 100644 --- a/llvm/test/CodeGen/BPF/cc_args.ll +++ b/llvm/test/CodeGen/BPF/cc_args.ll @@ -1,4 +1,4 @@ -; RUN: llc < %s -march=bpfel -show-mc-encoding | FileCheck %s +; RUN: not llc < %s -march=bpfel -show-mc-encoding | FileCheck %s define void @test() #0 { entry: |
