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ARM32 doesn't have instructions to do 64-bit/64-bit divisions. So, to implement the following instructions: BPF_ALU64 | BPF_DIV BPF_ALU64 | BPF_MOD BPF_ALU64 | BPF_SDIV BPF_ALU64 | BPF_SMOD We implement the above instructions by doing function calls to div64_u64() and div64_u64_rem() for unsigned division/mod and calls to div64_s64() for signed division/mod. Signed-off-by: Puranjay Mohan <puranjay12@gmail.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Link: https://lore.kernel.org/r/20230907230550.1417590-7-puranjay12@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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| bpf_jit_32.c | ||
| bpf_jit_32.h | ||
| Makefile | ||