[llvm-dev] BPF_PSEUDO_CALL question

[Ananyev, Konstantin via llvm-dev]

Hi everyone,
wtih clang 6.0 and onwards, for the following code:
$ cat t6.c

#include <stdint.h>

extern int ffx1(const void *p);

uint64_t entry(const void *p)
{
        return ffx1(p);
}

clang -O2  -target bpfel -c t6.c
generates for the call BPF_PSEUDO_CALL instruction:
entry:
       0:       85 10 00 00 ff ff ff ff         call -1
       1:       67 00 00 00 20 00 00 00         r0 <<= 32
       2:       c7 00 00 00 20 00 00 00         r0 s>>= 32
       3:       95 00 00 00 00 00 00 00         exit

Is there any way to force clang to generate proper BPF_CALL instruction,
i.e: 85 00 00 00 ff ff ff ff (as it did in older versions)?
Thanks
Konstantin