[BPF_ALU64] = "alu64",
};
-/* Dest = 1$, Src = 2$, Imm = 3$, Off = 4$, Branch = 5$. */
-
-#define DST "r%1$d"
-#define DSTU "(u32)" DST
-#define DSTS "(s64)" DST
-
-#define SRC "r%2$d"
-#define SRCU "(u32)" SRC
-#define SRCS "(s64)" SRC
-
-#define IMMS "%3$d"
-#define IMMX "%3$#x"
-#define OFF "%4$+d"
-#define JMP "%5$#x"
-
-#define A32(O, S) DST " = " DSTU " " #O " " S
-#define A64(O, S) DST " " #O "= " S
-#define J64(D, O, S) "if " D " " #O " " S " goto " JMP
-#define LOAD(T) DST " = *(" #T " *)(" SRC OFF ")"
-#define STORE(T, S) "*(" #T " *)(" DST OFF ") = " S
-#define XADD(T, S) "lock *(" #T " *)(" DST OFF ") += " S
-#define LDSKB(T, S) "r0 = *(" #T " *)skb[" S "]"
-/* 8 character field between opcode and arguments. */
-static const char * const code_fmts[256] = {
- [BPF_ALU | BPF_ADD | BPF_K] = A32(+, IMMS),
- [BPF_ALU | BPF_SUB | BPF_K] = A32(-, IMMS),
- [BPF_ALU | BPF_MUL | BPF_K] = A32(*, IMMS),
- [BPF_ALU | BPF_DIV | BPF_K] = A32(/, IMMS),
- [BPF_ALU | BPF_OR | BPF_K] = A32(|, IMMX),
- [BPF_ALU | BPF_AND | BPF_K] = A32(&, IMMX),
- [BPF_ALU | BPF_LSH | BPF_K] = A32(<<, IMMS),
- [BPF_ALU | BPF_RSH | BPF_K] = A32(>>, IMMS),
- [BPF_ALU | BPF_MOD | BPF_K] = A32(%, IMMS),
- [BPF_ALU | BPF_XOR | BPF_K] = A32(^, IMMX),
- [BPF_ALU | BPF_MOV | BPF_K] = DST " = " IMMX,
- [BPF_ALU | BPF_ARSH | BPF_K] = DST " = (u32)((s32)" DST " >> " IMMS ")",
-
- [BPF_ALU | BPF_ADD | BPF_X] = A32(+, SRCU),
- [BPF_ALU | BPF_SUB | BPF_X] = A32(-, SRCU),
- [BPF_ALU | BPF_MUL | BPF_X] = A32(*, SRCU),
- [BPF_ALU | BPF_DIV | BPF_X] = A32(/, SRCU),
- [BPF_ALU | BPF_OR | BPF_X] = A32(|, SRCU),
- [BPF_ALU | BPF_AND | BPF_X] = A32(&, SRCU),
- [BPF_ALU | BPF_LSH | BPF_X] = A32(<<, SRCU),
- [BPF_ALU | BPF_RSH | BPF_X] = A32(>>, SRCU),
- [BPF_ALU | BPF_MOD | BPF_X] = A32(%, SRCU),
- [BPF_ALU | BPF_XOR | BPF_X] = A32(^, SRCU),
- [BPF_ALU | BPF_MOV | BPF_X] = DST " = " SRCU,
- [BPF_ALU | BPF_ARSH | BPF_X] = DST " = (u32)((s32)" DST " >> " SRC ")",
-
- [BPF_ALU64 | BPF_ADD | BPF_K] = A64(+, IMMS),
- [BPF_ALU64 | BPF_SUB | BPF_K] = A64(-, IMMS),
- [BPF_ALU64 | BPF_MUL | BPF_K] = A64(*, IMMS),
- [BPF_ALU64 | BPF_DIV | BPF_K] = A64(/, IMMS),
- [BPF_ALU64 | BPF_OR | BPF_K] = A64(|, IMMS),
- [BPF_ALU64 | BPF_AND | BPF_K] = A64(&, IMMS),
- [BPF_ALU64 | BPF_LSH | BPF_K] = A64(<<, IMMS),
- [BPF_ALU64 | BPF_RSH | BPF_K] = A64(>>, IMMS),
- [BPF_ALU64 | BPF_MOD | BPF_K] = A64(%, IMMS),
- [BPF_ALU64 | BPF_XOR | BPF_K] = A64(^, IMMS),
- [BPF_ALU64 | BPF_MOV | BPF_K] = DST " = " IMMS,
- [BPF_ALU64 | BPF_ARSH | BPF_K] = DST " = (s64)" DST " >> " IMMS,
-
- [BPF_ALU64 | BPF_ADD | BPF_X] = A64(+, SRC),
- [BPF_ALU64 | BPF_SUB | BPF_X] = A64(-, SRC),
- [BPF_ALU64 | BPF_MUL | BPF_X] = A64(*, SRC),
- [BPF_ALU64 | BPF_DIV | BPF_X] = A64(/, SRC),
- [BPF_ALU64 | BPF_OR | BPF_X] = A64(|, SRC),
- [BPF_ALU64 | BPF_AND | BPF_X] = A64(&, SRC),
- [BPF_ALU64 | BPF_LSH | BPF_X] = A64(<<, SRC),
- [BPF_ALU64 | BPF_RSH | BPF_X] = A64(>>, SRC),
- [BPF_ALU64 | BPF_MOD | BPF_X] = A64(%, SRC),
- [BPF_ALU64 | BPF_XOR | BPF_X] = A64(^, SRC),
- [BPF_ALU64 | BPF_MOV | BPF_X] = DST " = " SRC,
- [BPF_ALU64 | BPF_ARSH | BPF_X] = DST " = (s64)" DST " >> " SRC,
-
- [BPF_ALU | BPF_NEG] = DST " = (u32)-" DST,
- [BPF_ALU64 | BPF_NEG] = DST " = -" DST,
-
- /* The imm field contains {16,32,64}. */
- [BPF_ALU | BPF_END | BPF_TO_LE] = DST " = le%3$-6d(" DST ")",
- [BPF_ALU | BPF_END | BPF_TO_BE] = DST " = be%3$-6d(" DST ")",
-
- [BPF_JMP | BPF_JEQ | BPF_K] = J64(DST, ==, IMMS),
- [BPF_JMP | BPF_JGT | BPF_K] = J64(DST, >, IMMS),
- [BPF_JMP | BPF_JGE | BPF_K] = J64(DST, >=, IMMS),
- [BPF_JMP | BPF_JSET | BPF_K] = J64(DST, &, IMMS),
- [BPF_JMP | BPF_JNE | BPF_K] = J64(DST, !=, IMMS),
- [BPF_JMP | BPF_JSGT | BPF_K] = J64(DSTS, >, IMMS),
- [BPF_JMP | BPF_JSGE | BPF_K] = J64(DSTS, >=, IMMS),
-
- [BPF_JMP | BPF_JEQ | BPF_X] = J64(DST, ==, SRC),
- [BPF_JMP | BPF_JGT | BPF_X] = J64(DST, >, SRC),
- [BPF_JMP | BPF_JGE | BPF_X] = J64(DST, >=, SRC),
- [BPF_JMP | BPF_JSET | BPF_X] = J64(DST, &, SRC),
- [BPF_JMP | BPF_JNE | BPF_X] = J64(DST, !=, SRC),
- [BPF_JMP | BPF_JSGT | BPF_X] = J64(DSTS, >, SRCS),
- [BPF_JMP | BPF_JSGE | BPF_X] = J64(DSTS, >=, SRCS),
-
- [BPF_JMP | BPF_JA] = "goto " JMP,
- [BPF_JMP | BPF_CALL] = "call " IMMS,
- [BPF_JMP | BPF_EXIT] = "exit",
-
- [BPF_LDX | BPF_MEM | BPF_B] = LOAD(u8),
- [BPF_LDX | BPF_MEM | BPF_H] = LOAD(u16),
- [BPF_LDX | BPF_MEM | BPF_W] = LOAD(u32),
- [BPF_LDX | BPF_MEM | BPF_DW] = LOAD(u64),
-
- [BPF_STX | BPF_MEM | BPF_B] = STORE(u8, SRC),
- [BPF_STX | BPF_MEM | BPF_H] = STORE(u16, SRC),
- [BPF_STX | BPF_MEM | BPF_W] = STORE(u32, SRC),
- [BPF_STX | BPF_MEM | BPF_DW] = STORE(u64, SRC),
-
- [BPF_STX | BPF_XADD | BPF_W] = XADD(u32, SRC),
- [BPF_STX | BPF_XADD | BPF_DW] = XADD(u64, SRC),
-
- [BPF_ST | BPF_MEM | BPF_B] = STORE(u8, IMMS),
- [BPF_ST | BPF_MEM | BPF_H] = STORE(u16, IMMS),
- [BPF_ST | BPF_MEM | BPF_W] = STORE(u32, IMMS),
- [BPF_ST | BPF_MEM | BPF_DW] = STORE(u64, IMMS),
-
- [BPF_LD | BPF_ABS | BPF_B] = LDSKB(u8, IMMS),
- [BPF_LD | BPF_ABS | BPF_H] = LDSKB(u16, IMMS),
- [BPF_LD | BPF_ABS | BPF_W] = LDSKB(u32, IMMS),
-
- [BPF_LD | BPF_IND | BPF_B] = LDSKB(u8, SRC "+" IMMS),
- [BPF_LD | BPF_IND | BPF_H] = LDSKB(u16, SRC "+" IMMS),
- [BPF_LD | BPF_IND | BPF_W] = LDSKB(u32, SRC "+" IMMS),
-};
+#define REG(N) "r%" #N "$d"
+#define REGU(N) "(u32)" REG(N)
+#define REGS(N) "(s64)" REG(N)
+
+#define IMMS(N) "%" #N "$d"
+#define IMMX(N) "%" #N "$#x"
+
+#define OFF(N) "%" #N "$+d"
+#define JMP(N) "%" #N "$#x"
+
+#define A32(O, S) REG(1) " = " REGU(1) " " #O " " S
+#define A64(O, S) REG(1) " " #O "= " S
+#define J64(D, O, S) "if " D " " #O " " S " goto " JMP(3)
+#define LOAD(T) REG(1) " = *(" #T " *)(" REG(2) OFF(3) ")"
+#define STORE(T, S) "*(" #T " *)(" REG(1) OFF(3) ") = " S
+#define XADD(T, S) "lock *(" #T " *)(" REG(1) OFF(3) ") += " S
+#define LDSKB(T, S) "r0 = *(" #T " *)skb[" S "]"
static void
bswap_bpf_insn (struct bpf_insn *p)
memcpy(&i, start, sizeof(struct bpf_insn));
if (need_bswap)
bswap_bpf_insn (&i);
+
start += sizeof(struct bpf_insn);
addr += sizeof(struct bpf_insn);
-
- /* ??? We really should pass in CTX, so that we can detect
- wrong endianness and do some swapping. */
+ jmp = addr + i.off * sizeof(struct bpf_insn);
code = i.code;
- code_fmt = code_fmts[code];
-
- if (code == (BPF_LD | BPF_IMM | BPF_DW))
+ switch (code)
{
- struct bpf_insn i2;
- uint64_t imm64;
-
- if (start + sizeof(struct bpf_insn) > end)
- {
- start -= sizeof(struct bpf_insn);
- *startp = start;
- goto done;
- }
- memcpy(&i2, start, sizeof(struct bpf_insn));
- if (need_bswap)
- bswap_bpf_insn (&i2);
- start += sizeof(struct bpf_insn);
- addr += sizeof(struct bpf_insn);
-
- imm64 = (uint32_t)i.imm | ((uint64_t)i2.imm << 32);
- switch (i.src_reg)
- {
- case 0:
- code_fmt = DST " = %2$#" PRIx64;
- break;
- case BPF_PSEUDO_MAP_FD:
- code_fmt = DST " = map_fd(%2$#" PRIx64 ")";
- break;
- default:
- code_fmt = DST " = ld_pseudo(%3$d, %2$#" PRIx64 ")";
- break;
- }
+ case BPF_LD | BPF_IMM | BPF_DW:
+ {
+ struct bpf_insn i2;
+ uint64_t imm64;
+
+ if (start + sizeof(struct bpf_insn) > end)
+ {
+ start -= sizeof(struct bpf_insn);
+ *startp = start;
+ goto done;
+ }
+ memcpy(&i2, start, sizeof(struct bpf_insn));
+ if (need_bswap)
+ bswap_bpf_insn (&i2);
+ start += sizeof(struct bpf_insn);
+ addr += sizeof(struct bpf_insn);
+
+ imm64 = (uint32_t)i.imm | ((uint64_t)i2.imm << 32);
+ switch (i.src_reg)
+ {
+ case 0:
+ code_fmt = REG(1) " = %2$#" PRIx64;
+ break;
+ case BPF_PSEUDO_MAP_FD:
+ code_fmt = REG(1) " = map_fd(%2$#" PRIx64 ")";
+ break;
+ default:
+ code_fmt = REG(1) " = ld_pseudo(%3$d, %2$#" PRIx64 ")";
+ break;
+ }
+ len = snprintf(buf, sizeof(buf), code_fmt,
+ i.dst_reg, imm64, i.src_reg);
+ }
+ break;
+
+ case BPF_JMP | BPF_EXIT:
+ len = snprintf(buf, sizeof(buf), "exit");
+ break;
+ case BPF_JMP | BPF_JA:
+ len = snprintf(buf, sizeof(buf), "goto " JMP(1), jmp);
+ break;
+ case BPF_JMP | BPF_CALL:
+ code_fmt = "call " IMMS(1);
+ goto do_imm;
+
+ case BPF_ALU | BPF_END | BPF_TO_LE:
+ /* The imm field contains {16,32,64}. */
+ code_fmt = REG(1) " = le" IMMS(2) "(" REG(1) ")";
+ goto do_dst_imm;
+ case BPF_ALU | BPF_END | BPF_TO_BE:
+ code_fmt = REG(1) " = be" IMMS(2) "(" REG(1) ")";
+ goto do_dst_imm;
+
+ case BPF_ALU | BPF_ADD | BPF_K:
+ code_fmt = A32(+, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_SUB | BPF_K:
+ code_fmt = A32(-, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_MUL | BPF_K:
+ code_fmt = A32(*, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_DIV | BPF_K:
+ code_fmt = A32(/, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_OR | BPF_K:
+ code_fmt = A32(|, IMMX(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_AND | BPF_K:
+ code_fmt = A32(&, IMMX(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_LSH | BPF_K:
+ code_fmt = A32(<<, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_RSH | BPF_K:
+ code_fmt = A32(>>, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_MOD | BPF_K:
+ code_fmt = A32(%%, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_XOR | BPF_K:
+ code_fmt = A32(^, IMMX(2));
+ goto do_dst_imm;
+ case BPF_ALU | BPF_MOV | BPF_K:
+ code_fmt = REG(1) " = " IMMX(2);
+ goto do_dst_imm;
+ case BPF_ALU | BPF_ARSH | BPF_K:
+ code_fmt = REG(1) " = (u32)((s32)" REG(1) " >> " IMMS(2) ")";
+ goto do_dst_imm;
+
+ case BPF_ALU | BPF_ADD | BPF_X:
+ code_fmt = A32(+, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_SUB | BPF_X:
+ code_fmt = A32(-, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_MUL | BPF_X:
+ code_fmt = A32(*, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_DIV | BPF_X:
+ code_fmt = A32(/, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_OR | BPF_X:
+ code_fmt = A32(|, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_AND | BPF_X:
+ code_fmt = A32(&, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_LSH | BPF_X:
+ code_fmt = A32(<<, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_RSH | BPF_X:
+ code_fmt = A32(>>, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_MOD | BPF_X:
+ code_fmt = A32(%%, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_XOR | BPF_X:
+ code_fmt = A32(^, REGU(2));
+ goto do_dst_src;
+ case BPF_ALU | BPF_MOV | BPF_X:
+ code_fmt = REG(1) " = " REGU(2);
+ goto do_dst_src;
+ case BPF_ALU | BPF_ARSH | BPF_X:
+ code_fmt = REG(1) " = (u32)((s32)" REG(1) " >> " REG(2) ")";
+ goto do_dst_src;
+
+ case BPF_ALU64 | BPF_ADD | BPF_K:
+ code_fmt = A64(+, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_SUB | BPF_K:
+ code_fmt = A64(-, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_MUL | BPF_K:
+ code_fmt = A64(*, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_DIV | BPF_K:
+ code_fmt = A64(/, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_OR | BPF_K:
+ code_fmt = A64(|, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_AND | BPF_K:
+ code_fmt = A64(&, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_LSH | BPF_K:
+ code_fmt = A64(<<, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_RSH | BPF_K:
+ code_fmt = A64(>>, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_MOD | BPF_K:
+ code_fmt = A64(%%, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_XOR | BPF_K:
+ code_fmt = A64(^, IMMS(2));
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_MOV | BPF_K:
+ code_fmt = REG(1) " = " IMMS(2);
+ goto do_dst_imm;
+ case BPF_ALU64 | BPF_ARSH | BPF_K:
+ code_fmt = REG(1) " = (s64)" REG(1) " >> " IMMS(2);
+ goto do_dst_imm;
+
+ case BPF_ALU64 | BPF_ADD | BPF_X:
+ code_fmt = A64(+, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_SUB | BPF_X:
+ code_fmt = A64(-, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_MUL | BPF_X:
+ code_fmt = A64(*, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_DIV | BPF_X:
+ code_fmt = A64(/, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_OR | BPF_X:
+ code_fmt = A64(|, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_AND | BPF_X:
+ code_fmt = A64(&, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_LSH | BPF_X:
+ code_fmt = A64(<<, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_RSH | BPF_X:
+ code_fmt = A64(>>, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_MOD | BPF_X:
+ code_fmt = A64(%%, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_XOR | BPF_X:
+ code_fmt = A64(^, REG(2));
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_MOV | BPF_X:
+ code_fmt = REG(1) " = " REG(2);
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_ARSH | BPF_X:
+ code_fmt = REG(1) " = (s64)" REG(1) " >> " REG(2);
+ goto do_dst_src;
+
+ case BPF_ALU | BPF_NEG:
+ code_fmt = REG(1) " = (u32)-" REG(1);
+ goto do_dst_src;
+ case BPF_ALU64 | BPF_NEG:
+ code_fmt = REG(1) " = -" REG(1);
+ goto do_dst_src;
+
+ case BPF_JMP | BPF_JEQ | BPF_K:
+ code_fmt = J64(REG(1), ==, IMMS(2));
+ goto do_dst_imm_jmp;
+ case BPF_JMP | BPF_JGT | BPF_K:
+ code_fmt = J64(REG(1), >, IMMS(2));
+ goto do_dst_imm_jmp;
+ case BPF_JMP | BPF_JGE | BPF_K:
+ code_fmt = J64(REG(1), >=, IMMS(2));
+ goto do_dst_imm_jmp;
+ case BPF_JMP | BPF_JSET | BPF_K:
+ code_fmt = J64(REG(1), &, IMMS(2));
+ goto do_dst_imm_jmp;
+ case BPF_JMP | BPF_JNE | BPF_K:
+ code_fmt = J64(REG(1), !=, IMMS(2));
+ goto do_dst_imm_jmp;
+ case BPF_JMP | BPF_JSGT | BPF_K:
+ code_fmt = J64(REGS(1), >, IMMS(2));
+ goto do_dst_imm_jmp;
+ case BPF_JMP | BPF_JSGE | BPF_K:
+ code_fmt = J64(REGS(1), >=, IMMS(2));
+ goto do_dst_imm_jmp;
+
+ case BPF_JMP | BPF_JEQ | BPF_X:
+ code_fmt = J64(REG(1), ==, REG(2));
+ goto do_dst_src_jmp;
+ case BPF_JMP | BPF_JGT | BPF_X:
+ code_fmt = J64(REG(1), >, REG(2));
+ goto do_dst_src_jmp;
+ case BPF_JMP | BPF_JGE | BPF_X:
+ code_fmt = J64(REG(1), >=, REG(2));
+ goto do_dst_src_jmp;
+ case BPF_JMP | BPF_JSET | BPF_X:
+ code_fmt = J64(REG(1), &, REG(2));
+ goto do_dst_src_jmp;
+ case BPF_JMP | BPF_JNE | BPF_X:
+ code_fmt = J64(REG(1), !=, REG(2));
+ goto do_dst_src_jmp;
+ case BPF_JMP | BPF_JSGT | BPF_X:
+ code_fmt = J64(REGS(1), >, REGS(2));
+ goto do_dst_src_jmp;
+ case BPF_JMP | BPF_JSGE | BPF_X:
+ code_fmt = J64(REGS(1), >=, REGS(2));
+ goto do_dst_src_jmp;
+
+ case BPF_LDX | BPF_MEM | BPF_B:
+ code_fmt = LOAD(u8);
+ goto do_dst_src_off;
+ case BPF_LDX | BPF_MEM | BPF_H:
+ code_fmt = LOAD(u16);
+ goto do_dst_src_off;
+ case BPF_LDX | BPF_MEM | BPF_W:
+ code_fmt = LOAD(u32);
+ goto do_dst_src_off;
+ case BPF_LDX | BPF_MEM | BPF_DW:
+ code_fmt = LOAD(u64);
+ goto do_dst_src_off;
+
+ case BPF_STX | BPF_MEM | BPF_B:
+ code_fmt = STORE(u8, REG(2));
+ goto do_dst_src_off;
+ case BPF_STX | BPF_MEM | BPF_H:
+ code_fmt = STORE(u16, REG(2));
+ goto do_dst_src_off;
+ case BPF_STX | BPF_MEM | BPF_W:
+ code_fmt = STORE(u32, REG(2));
+ goto do_dst_src_off;
+ case BPF_STX | BPF_MEM | BPF_DW:
+ code_fmt = STORE(u64, REG(2));
+ goto do_dst_src_off;
+
+ case BPF_STX | BPF_XADD | BPF_W:
+ code_fmt = XADD(u32, REG(2));
+ goto do_dst_src_off;
+ case BPF_STX | BPF_XADD | BPF_DW:
+ code_fmt = XADD(u64, REG(2));
+ goto do_dst_src_off;
+
+ case BPF_ST | BPF_MEM | BPF_B:
+ code_fmt = STORE(u8, IMMS(2));
+ goto do_dst_imm_off;
+ case BPF_ST | BPF_MEM | BPF_H:
+ code_fmt = STORE(u16, IMMS(2));
+ goto do_dst_imm_off;
+ case BPF_ST | BPF_MEM | BPF_W:
+ code_fmt = STORE(u32, IMMS(2));
+ goto do_dst_imm_off;
+ case BPF_ST | BPF_MEM | BPF_DW:
+ code_fmt = STORE(u64, IMMS(2));
+ goto do_dst_imm_off;
+
+ case BPF_LD | BPF_ABS | BPF_B:
+ code_fmt = LDSKB(u8, IMMS(1));
+ goto do_imm;
+ case BPF_LD | BPF_ABS | BPF_H:
+ code_fmt = LDSKB(u16, IMMS(1));
+ goto do_imm;
+ case BPF_LD | BPF_ABS | BPF_W:
+ code_fmt = LDSKB(u32, IMMS(1));
+ goto do_imm;
+
+ case BPF_LD | BPF_IND | BPF_B:
+ code_fmt = LDSKB(u8, REG(1) "+" IMMS(2));
+ goto do_src_imm;
+ case BPF_LD | BPF_IND | BPF_H:
+ code_fmt = LDSKB(u16, REG(1) "+" IMMS(2));
+ goto do_src_imm;
+ case BPF_LD | BPF_IND | BPF_W:
+ code_fmt = LDSKB(u32, REG(1) "+" IMMS(2));
+ goto do_src_imm;
+
+ do_imm:
+ len = snprintf(buf, sizeof(buf), code_fmt, i.imm);
+ break;
+ do_dst_imm:
+ len = snprintf(buf, sizeof(buf), code_fmt, i.dst_reg, i.imm);
+ break;
+ do_src_imm:
+ len = snprintf(buf, sizeof(buf), code_fmt, i.src_reg, i.imm);
+ break;
+ do_dst_src:
+ len = snprintf(buf, sizeof(buf), code_fmt, i.dst_reg, i.src_reg);
+ break;
+ do_dst_imm_jmp:
+ len = snprintf(buf, sizeof(buf), code_fmt, i.dst_reg, i.imm, jmp);
+ break;
+ do_dst_src_jmp:
len = snprintf(buf, sizeof(buf), code_fmt,
- i.dst_reg, imm64, i.src_reg);
- }
- else if (code_fmt != NULL)
- {
- jmp = addr + i.off * sizeof(struct bpf_insn);
- len = snprintf(buf, sizeof(buf), code_fmt, i.dst_reg, i.src_reg,
- i.imm, i.off, jmp);
- }
- else
- {
+ i.dst_reg, i.src_reg, jmp);
+ break;
+ do_dst_imm_off:
+ len = snprintf(buf, sizeof(buf), code_fmt, i.dst_reg, i.imm, i.off);
+ break;
+ do_dst_src_off:
+ len = snprintf(buf, sizeof(buf), code_fmt,
+ i.dst_reg, i.src_reg, i.off);
+ break;
+
+ default:
class = BPF_CLASS(code);
len = snprintf(buf, sizeof(buf), "invalid class %s",
class_string[class]);
+ break;
}
*startp = start;
projects / thirdparty / elfutils.git / commitdiff
