mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-19 11:02:59 +02:00
2d9650b5d9
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
26 lines
741 B
LLVM
26 lines
741 B
LLVM
; RUN: not llc < %s -march=bpf | FileCheck %s
|
|
|
|
%struct.key_t = type { i32, [16 x i8] }
|
|
|
|
; Function Attrs: nounwind uwtable
|
|
define i32 @test() #0 {
|
|
%key = alloca %struct.key_t, align 4
|
|
%1 = bitcast %struct.key_t* %key to i8*
|
|
; CHECK: r1 = 0
|
|
; CHECK: *(u32 *)(r10 - 8) = r1
|
|
; CHECK: *(u64 *)(r10 - 16) = r1
|
|
; CHECK: *(u64 *)(r10 - 24) = r1
|
|
call void @llvm.memset.p0i8.i64(i8* %1, i8 0, i64 20, i32 4, i1 false)
|
|
; CHECK: r1 = r10
|
|
; CHECK: r1 += -20
|
|
%2 = getelementptr inbounds %struct.key_t, %struct.key_t* %key, i64 0, i32 1, i64 0
|
|
; CHECK: call test1
|
|
call void @test1(i8* %2) #3
|
|
ret i32 0
|
|
}
|
|
|
|
; Function Attrs: nounwind argmemonly
|
|
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i32, i1) #1
|
|
|
|
declare void @test1(i8*) #2
|