Mercurial > hg > nginx-quic
view src/event/quic/ngx_event_quic_bpf_code.c @ 8441:81d491f0dc8c quic
QUIC: unroll and inline ngx_quic_varint_len()/ngx_quic_build_int().
According to profiling, those two are among most frequently called,
so inlining is generally useful, and unrolling should help with it.
Further, this fixes undefined behaviour seen with invalid values.
Inspired by Yu Liu.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Sat, 22 May 2021 18:40:45 +0300 |
parents | 85e60c064728 |
children | 6d1488b62dc5 |
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/* AUTO-GENERATED, DO NOT EDIT. */ #include <stddef.h> #include <stdint.h> #include "ngx_bpf.h" static ngx_bpf_reloc_t bpf_reloc_prog_ngx_quic_reuseport_helper[] = { { "ngx_quic_sockmap", 55 }, }; static struct bpf_insn bpf_insn_prog_ngx_quic_reuseport_helper[] = { /* opcode dst src offset imm */ { 0x79, BPF_REG_4, BPF_REG_1, (int16_t) 0, 0x0 }, { 0x79, BPF_REG_3, BPF_REG_1, (int16_t) 8, 0x0 }, { 0xbf, BPF_REG_2, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x7, BPF_REG_2, BPF_REG_0, (int16_t) 0, 0x8 }, { 0x2d, BPF_REG_2, BPF_REG_3, (int16_t) 54, 0x0 }, { 0xbf, BPF_REG_5, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x7, BPF_REG_5, BPF_REG_0, (int16_t) 0, 0x9 }, { 0x2d, BPF_REG_5, BPF_REG_3, (int16_t) 51, 0x0 }, { 0xb7, BPF_REG_5, BPF_REG_0, (int16_t) 0, 0x14 }, { 0xb7, BPF_REG_0, BPF_REG_0, (int16_t) 0, 0x9 }, { 0x71, BPF_REG_6, BPF_REG_2, (int16_t) 0, 0x0 }, { 0x67, BPF_REG_6, BPF_REG_0, (int16_t) 0, 0x38 }, { 0xc7, BPF_REG_6, BPF_REG_0, (int16_t) 0, 0x38 }, { 0x65, BPF_REG_6, BPF_REG_0, (int16_t) 10, 0xffffffff }, { 0xbf, BPF_REG_2, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x7, BPF_REG_2, BPF_REG_0, (int16_t) 0, 0xd }, { 0x2d, BPF_REG_2, BPF_REG_3, (int16_t) 42, 0x0 }, { 0xbf, BPF_REG_5, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x7, BPF_REG_5, BPF_REG_0, (int16_t) 0, 0xe }, { 0x2d, BPF_REG_5, BPF_REG_3, (int16_t) 39, 0x0 }, { 0xb7, BPF_REG_0, BPF_REG_0, (int16_t) 0, 0xe }, { 0x71, BPF_REG_5, BPF_REG_2, (int16_t) 0, 0x0 }, { 0xb7, BPF_REG_6, BPF_REG_0, (int16_t) 0, 0x8 }, { 0x2d, BPF_REG_6, BPF_REG_5, (int16_t) 35, 0x0 }, { 0xf, BPF_REG_5, BPF_REG_0, (int16_t) 0, 0x0 }, { 0xf, BPF_REG_4, BPF_REG_5, (int16_t) 0, 0x0 }, { 0x2d, BPF_REG_4, BPF_REG_3, (int16_t) 32, 0x0 }, { 0xbf, BPF_REG_4, BPF_REG_2, (int16_t) 0, 0x0 }, { 0x7, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x9 }, { 0x2d, BPF_REG_4, BPF_REG_3, (int16_t) 29, 0x0 }, { 0x71, BPF_REG_4, BPF_REG_2, (int16_t) 1, 0x0 }, { 0x67, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x38 }, { 0x71, BPF_REG_3, BPF_REG_2, (int16_t) 2, 0x0 }, { 0x67, BPF_REG_3, BPF_REG_0, (int16_t) 0, 0x30 }, { 0x4f, BPF_REG_3, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x71, BPF_REG_4, BPF_REG_2, (int16_t) 3, 0x0 }, { 0x67, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x28 }, { 0x4f, BPF_REG_3, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x71, BPF_REG_4, BPF_REG_2, (int16_t) 4, 0x0 }, { 0x67, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x20 }, { 0x4f, BPF_REG_3, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x71, BPF_REG_4, BPF_REG_2, (int16_t) 5, 0x0 }, { 0x67, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x18 }, { 0x4f, BPF_REG_3, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x71, BPF_REG_4, BPF_REG_2, (int16_t) 6, 0x0 }, { 0x67, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x10 }, { 0x4f, BPF_REG_3, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x71, BPF_REG_4, BPF_REG_2, (int16_t) 7, 0x0 }, { 0x67, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x8 }, { 0x4f, BPF_REG_3, BPF_REG_4, (int16_t) 0, 0x0 }, { 0x71, BPF_REG_2, BPF_REG_2, (int16_t) 8, 0x0 }, { 0x4f, BPF_REG_3, BPF_REG_2, (int16_t) 0, 0x0 }, { 0x7b, BPF_REG_10, BPF_REG_3, (int16_t) 65528, 0x0 }, { 0xbf, BPF_REG_3, BPF_REG_10, (int16_t) 0, 0x0 }, { 0x7, BPF_REG_3, BPF_REG_0, (int16_t) 0, 0xfffffff8 }, { 0x18, BPF_REG_2, BPF_REG_0, (int16_t) 0, 0x0 }, { 0x0, BPF_REG_0, BPF_REG_0, (int16_t) 0, 0x0 }, { 0xb7, BPF_REG_4, BPF_REG_0, (int16_t) 0, 0x0 }, { 0x85, BPF_REG_0, BPF_REG_0, (int16_t) 0, 0x52 }, { 0xb7, BPF_REG_0, BPF_REG_0, (int16_t) 0, 0x1 }, { 0x95, BPF_REG_0, BPF_REG_0, (int16_t) 0, 0x0 }, }; ngx_bpf_program_t ngx_quic_reuseport_helper = { .relocs = bpf_reloc_prog_ngx_quic_reuseport_helper, .nrelocs = sizeof(bpf_reloc_prog_ngx_quic_reuseport_helper) / sizeof(bpf_reloc_prog_ngx_quic_reuseport_helper[0]), .ins = bpf_insn_prog_ngx_quic_reuseport_helper, .nins = sizeof(bpf_insn_prog_ngx_quic_reuseport_helper) / sizeof(bpf_insn_prog_ngx_quic_reuseport_helper[0]), .license = "BSD", .type = BPF_PROG_TYPE_SK_REUSEPORT, };