| /* |
| * Tiny Code Generator for QEMU |
| * |
| * Copyright (c) 2008 Fabrice Bellard |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| * THE SOFTWARE. |
| */ |
| |
| #include "tcg-be-null.h" |
| |
| #ifndef NDEBUG |
| static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = { |
| "%g0", |
| "%g1", |
| "%g2", |
| "%g3", |
| "%g4", |
| "%g5", |
| "%g6", |
| "%g7", |
| "%o0", |
| "%o1", |
| "%o2", |
| "%o3", |
| "%o4", |
| "%o5", |
| "%o6", |
| "%o7", |
| "%l0", |
| "%l1", |
| "%l2", |
| "%l3", |
| "%l4", |
| "%l5", |
| "%l6", |
| "%l7", |
| "%i0", |
| "%i1", |
| "%i2", |
| "%i3", |
| "%i4", |
| "%i5", |
| "%i6", |
| "%i7", |
| }; |
| #endif |
| |
| /* Define some temporary registers. T2 is used for constant generation. */ |
| #define TCG_REG_T1 TCG_REG_G1 |
| #define TCG_REG_T2 TCG_REG_O7 |
| |
| #ifdef CONFIG_USE_GUEST_BASE |
| # define TCG_GUEST_BASE_REG TCG_REG_I5 |
| #else |
| # define TCG_GUEST_BASE_REG TCG_REG_G0 |
| #endif |
| |
| static const int tcg_target_reg_alloc_order[] = { |
| TCG_REG_L0, |
| TCG_REG_L1, |
| TCG_REG_L2, |
| TCG_REG_L3, |
| TCG_REG_L4, |
| TCG_REG_L5, |
| TCG_REG_L6, |
| TCG_REG_L7, |
| |
| TCG_REG_I0, |
| TCG_REG_I1, |
| TCG_REG_I2, |
| TCG_REG_I3, |
| TCG_REG_I4, |
| TCG_REG_I5, |
| |
| TCG_REG_G2, |
| TCG_REG_G3, |
| TCG_REG_G4, |
| TCG_REG_G5, |
| |
| TCG_REG_O0, |
| TCG_REG_O1, |
| TCG_REG_O2, |
| TCG_REG_O3, |
| TCG_REG_O4, |
| TCG_REG_O5, |
| }; |
| |
| static const int tcg_target_call_iarg_regs[6] = { |
| TCG_REG_O0, |
| TCG_REG_O1, |
| TCG_REG_O2, |
| TCG_REG_O3, |
| TCG_REG_O4, |
| TCG_REG_O5, |
| }; |
| |
| static const int tcg_target_call_oarg_regs[] = { |
| TCG_REG_O0, |
| TCG_REG_O1, |
| TCG_REG_O2, |
| TCG_REG_O3, |
| }; |
| |
| #define INSN_OP(x) ((x) << 30) |
| #define INSN_OP2(x) ((x) << 22) |
| #define INSN_OP3(x) ((x) << 19) |
| #define INSN_OPF(x) ((x) << 5) |
| #define INSN_RD(x) ((x) << 25) |
| #define INSN_RS1(x) ((x) << 14) |
| #define INSN_RS2(x) (x) |
| #define INSN_ASI(x) ((x) << 5) |
| |
| #define INSN_IMM10(x) ((1 << 13) | ((x) & 0x3ff)) |
| #define INSN_IMM11(x) ((1 << 13) | ((x) & 0x7ff)) |
| #define INSN_IMM13(x) ((1 << 13) | ((x) & 0x1fff)) |
| #define INSN_OFF16(x) ((((x) >> 2) & 0x3fff) | ((((x) >> 16) & 3) << 20)) |
| #define INSN_OFF19(x) (((x) >> 2) & 0x07ffff) |
| #define INSN_COND(x) ((x) << 25) |
| |
| #define COND_N 0x0 |
| #define COND_E 0x1 |
| #define COND_LE 0x2 |
| #define COND_L 0x3 |
| #define COND_LEU 0x4 |
| #define COND_CS 0x5 |
| #define COND_NEG 0x6 |
| #define COND_VS 0x7 |
| #define COND_A 0x8 |
| #define COND_NE 0x9 |
| #define COND_G 0xa |
| #define COND_GE 0xb |
| #define COND_GU 0xc |
| #define COND_CC 0xd |
| #define COND_POS 0xe |
| #define COND_VC 0xf |
| #define BA (INSN_OP(0) | INSN_COND(COND_A) | INSN_OP2(0x2)) |
| |
| #define RCOND_Z 1 |
| #define RCOND_LEZ 2 |
| #define RCOND_LZ 3 |
| #define RCOND_NZ 5 |
| #define RCOND_GZ 6 |
| #define RCOND_GEZ 7 |
| |
| #define MOVCC_ICC (1 << 18) |
| #define MOVCC_XCC (1 << 18 | 1 << 12) |
| |
| #define BPCC_ICC 0 |
| #define BPCC_XCC (2 << 20) |
| #define BPCC_PT (1 << 19) |
| #define BPCC_PN 0 |
| #define BPCC_A (1 << 29) |
| |
| #define BPR_PT BPCC_PT |
| |
| #define ARITH_ADD (INSN_OP(2) | INSN_OP3(0x00)) |
| #define ARITH_ADDCC (INSN_OP(2) | INSN_OP3(0x10)) |
| #define ARITH_AND (INSN_OP(2) | INSN_OP3(0x01)) |
| #define ARITH_ANDN (INSN_OP(2) | INSN_OP3(0x05)) |
| #define ARITH_OR (INSN_OP(2) | INSN_OP3(0x02)) |
| #define ARITH_ORCC (INSN_OP(2) | INSN_OP3(0x12)) |
| #define ARITH_ORN (INSN_OP(2) | INSN_OP3(0x06)) |
| #define ARITH_XOR (INSN_OP(2) | INSN_OP3(0x03)) |
| #define ARITH_SUB (INSN_OP(2) | INSN_OP3(0x04)) |
| #define ARITH_SUBCC (INSN_OP(2) | INSN_OP3(0x14)) |
| #define ARITH_ADDX (INSN_OP(2) | INSN_OP3(0x08)) |
| #define ARITH_SUBX (INSN_OP(2) | INSN_OP3(0x0c)) |
| #define ARITH_UMUL (INSN_OP(2) | INSN_OP3(0x0a)) |
| #define ARITH_UDIV (INSN_OP(2) | INSN_OP3(0x0e)) |
| #define ARITH_SDIV (INSN_OP(2) | INSN_OP3(0x0f)) |
| #define ARITH_MULX (INSN_OP(2) | INSN_OP3(0x09)) |
| #define ARITH_UDIVX (INSN_OP(2) | INSN_OP3(0x0d)) |
| #define ARITH_SDIVX (INSN_OP(2) | INSN_OP3(0x2d)) |
| #define ARITH_MOVCC (INSN_OP(2) | INSN_OP3(0x2c)) |
| #define ARITH_MOVR (INSN_OP(2) | INSN_OP3(0x2f)) |
| |
| #define SHIFT_SLL (INSN_OP(2) | INSN_OP3(0x25)) |
| #define SHIFT_SRL (INSN_OP(2) | INSN_OP3(0x26)) |
| #define SHIFT_SRA (INSN_OP(2) | INSN_OP3(0x27)) |
| |
| #define SHIFT_SLLX (INSN_OP(2) | INSN_OP3(0x25) | (1 << 12)) |
| #define SHIFT_SRLX (INSN_OP(2) | INSN_OP3(0x26) | (1 << 12)) |
| #define SHIFT_SRAX (INSN_OP(2) | INSN_OP3(0x27) | (1 << 12)) |
| |
| #define RDY (INSN_OP(2) | INSN_OP3(0x28) | INSN_RS1(0)) |
| #define WRY (INSN_OP(2) | INSN_OP3(0x30) | INSN_RD(0)) |
| #define JMPL (INSN_OP(2) | INSN_OP3(0x38)) |
| #define SAVE (INSN_OP(2) | INSN_OP3(0x3c)) |
| #define RESTORE (INSN_OP(2) | INSN_OP3(0x3d)) |
| #define SETHI (INSN_OP(0) | INSN_OP2(0x4)) |
| #define CALL INSN_OP(1) |
| #define LDUB (INSN_OP(3) | INSN_OP3(0x01)) |
| #define LDSB (INSN_OP(3) | INSN_OP3(0x09)) |
| #define LDUH (INSN_OP(3) | INSN_OP3(0x02)) |
| #define LDSH (INSN_OP(3) | INSN_OP3(0x0a)) |
| #define LDUW (INSN_OP(3) | INSN_OP3(0x00)) |
| #define LDSW (INSN_OP(3) | INSN_OP3(0x08)) |
| #define LDX (INSN_OP(3) | INSN_OP3(0x0b)) |
| #define STB (INSN_OP(3) | INSN_OP3(0x05)) |
| #define STH (INSN_OP(3) | INSN_OP3(0x06)) |
| #define STW (INSN_OP(3) | INSN_OP3(0x04)) |
| #define STX (INSN_OP(3) | INSN_OP3(0x0e)) |
| #define LDUBA (INSN_OP(3) | INSN_OP3(0x11)) |
| #define LDSBA (INSN_OP(3) | INSN_OP3(0x19)) |
| #define LDUHA (INSN_OP(3) | INSN_OP3(0x12)) |
| #define LDSHA (INSN_OP(3) | INSN_OP3(0x1a)) |
| #define LDUWA (INSN_OP(3) | INSN_OP3(0x10)) |
| #define LDSWA (INSN_OP(3) | INSN_OP3(0x18)) |
| #define LDXA (INSN_OP(3) | INSN_OP3(0x1b)) |
| #define STBA (INSN_OP(3) | INSN_OP3(0x15)) |
| #define STHA (INSN_OP(3) | INSN_OP3(0x16)) |
| #define STWA (INSN_OP(3) | INSN_OP3(0x14)) |
| #define STXA (INSN_OP(3) | INSN_OP3(0x1e)) |
| |
| #ifndef ASI_PRIMARY_LITTLE |
| #define ASI_PRIMARY_LITTLE 0x88 |
| #endif |
| |
| #define LDUH_LE (LDUHA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| #define LDSH_LE (LDSHA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| #define LDUW_LE (LDUWA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| #define LDSW_LE (LDSWA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| #define LDX_LE (LDXA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| |
| #define STH_LE (STHA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| #define STW_LE (STWA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| #define STX_LE (STXA | INSN_ASI(ASI_PRIMARY_LITTLE)) |
| |
| static inline int check_fit_tl(tcg_target_long val, unsigned int bits) |
| { |
| return (val << ((sizeof(tcg_target_long) * 8 - bits)) |
| >> (sizeof(tcg_target_long) * 8 - bits)) == val; |
| } |
| |
| static inline int check_fit_i32(uint32_t val, unsigned int bits) |
| { |
| return ((val << (32 - bits)) >> (32 - bits)) == val; |
| } |
| |
| static void patch_reloc(uint8_t *code_ptr, int type, |
| intptr_t value, intptr_t addend) |
| { |
| uint32_t insn; |
| value += addend; |
| switch (type) { |
| case R_SPARC_32: |
| if (value != (uint32_t)value) { |
| tcg_abort(); |
| } |
| *(uint32_t *)code_ptr = value; |
| break; |
| case R_SPARC_WDISP16: |
| value -= (intptr_t)code_ptr; |
| if (!check_fit_tl(value >> 2, 16)) { |
| tcg_abort(); |
| } |
| insn = *(uint32_t *)code_ptr; |
| insn &= ~INSN_OFF16(-1); |
| insn |= INSN_OFF16(value); |
| *(uint32_t *)code_ptr = insn; |
| break; |
| case R_SPARC_WDISP19: |
| value -= (intptr_t)code_ptr; |
| if (!check_fit_tl(value >> 2, 19)) { |
| tcg_abort(); |
| } |
| insn = *(uint32_t *)code_ptr; |
| insn &= ~INSN_OFF19(-1); |
| insn |= INSN_OFF19(value); |
| *(uint32_t *)code_ptr = insn; |
| break; |
| default: |
| tcg_abort(); |
| } |
| } |
| |
| /* parse target specific constraints */ |
| static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) |
| { |
| const char *ct_str; |
| |
| ct_str = *pct_str; |
| switch (ct_str[0]) { |
| case 'r': |
| ct->ct |= TCG_CT_REG; |
| tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
| break; |
| case 'L': /* qemu_ld/st constraint */ |
| ct->ct |= TCG_CT_REG; |
| tcg_regset_set32(ct->u.regs, 0, 0xffffffff); |
| // Helper args |
| tcg_regset_reset_reg(ct->u.regs, TCG_REG_O0); |
| tcg_regset_reset_reg(ct->u.regs, TCG_REG_O1); |
| tcg_regset_reset_reg(ct->u.regs, TCG_REG_O2); |
| break; |
| case 'I': |
| ct->ct |= TCG_CT_CONST_S11; |
| break; |
| case 'J': |
| ct->ct |= TCG_CT_CONST_S13; |
| break; |
| case 'Z': |
| ct->ct |= TCG_CT_CONST_ZERO; |
| break; |
| default: |
| return -1; |
| } |
| ct_str++; |
| *pct_str = ct_str; |
| return 0; |
| } |
| |
| /* test if a constant matches the constraint */ |
| static inline int tcg_target_const_match(tcg_target_long val, TCGType type, |
| const TCGArgConstraint *arg_ct) |
| { |
| int ct = arg_ct->ct; |
| |
| if (ct & TCG_CT_CONST) { |
| return 1; |
| } |
| |
| if (type == TCG_TYPE_I32) { |
| val = (int32_t)val; |
| } |
| |
| if ((ct & TCG_CT_CONST_ZERO) && val == 0) { |
| return 1; |
| } else if ((ct & TCG_CT_CONST_S11) && check_fit_tl(val, 11)) { |
| return 1; |
| } else if ((ct & TCG_CT_CONST_S13) && check_fit_tl(val, 13)) { |
| return 1; |
| } else { |
| return 0; |
| } |
| } |
| |
| static inline void tcg_out_arith(TCGContext *s, int rd, int rs1, int rs2, |
| int op) |
| { |
| tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
| INSN_RS2(rs2)); |
| } |
| |
| static inline void tcg_out_arithi(TCGContext *s, int rd, int rs1, |
| uint32_t offset, int op) |
| { |
| tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | |
| INSN_IMM13(offset)); |
| } |
| |
| static void tcg_out_arithc(TCGContext *s, int rd, int rs1, |
| int val2, int val2const, int op) |
| { |
| tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) |
| | (val2const ? INSN_IMM13(val2) : INSN_RS2(val2))); |
| } |
| |
| static inline void tcg_out_mov(TCGContext *s, TCGType type, |
| TCGReg ret, TCGReg arg) |
| { |
| if (ret != arg) { |
| tcg_out_arith(s, ret, arg, TCG_REG_G0, ARITH_OR); |
| } |
| } |
| |
| static inline void tcg_out_sethi(TCGContext *s, int ret, uint32_t arg) |
| { |
| tcg_out32(s, SETHI | INSN_RD(ret) | ((arg & 0xfffffc00) >> 10)); |
| } |
| |
| static inline void tcg_out_movi_imm13(TCGContext *s, int ret, uint32_t arg) |
| { |
| tcg_out_arithi(s, ret, TCG_REG_G0, arg, ARITH_OR); |
| } |
| |
| static void tcg_out_movi(TCGContext *s, TCGType type, |
| TCGReg ret, tcg_target_long arg) |
| { |
| tcg_target_long hi, lo; |
| |
| /* A 13-bit constant sign-extended to 64-bits. */ |
| if (check_fit_tl(arg, 13)) { |
| tcg_out_movi_imm13(s, ret, arg); |
| return; |
| } |
| |
| /* A 32-bit constant, or 32-bit zero-extended to 64-bits. */ |
| if (TCG_TARGET_REG_BITS == 32 |
| || type == TCG_TYPE_I32 |
| || (arg & ~0xffffffffu) == 0) { |
| tcg_out_sethi(s, ret, arg); |
| if (arg & 0x3ff) { |
| tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR); |
| } |
| return; |
| } |
| |
| /* A 32-bit constant sign-extended to 64-bits. */ |
| if (check_fit_tl(arg, 32)) { |
| tcg_out_sethi(s, ret, ~arg); |
| tcg_out_arithi(s, ret, ret, (arg & 0x3ff) | -0x400, ARITH_XOR); |
| return; |
| } |
| |
| /* A 64-bit constant decomposed into 2 32-bit pieces. */ |
| lo = (int32_t)arg; |
| if (check_fit_tl(lo, 13)) { |
| hi = (arg - lo) >> 31 >> 1; |
| tcg_out_movi(s, TCG_TYPE_I32, ret, hi); |
| tcg_out_arithi(s, ret, ret, 32, SHIFT_SLLX); |
| tcg_out_arithi(s, ret, ret, lo, ARITH_ADD); |
| } else { |
| hi = arg >> 31 >> 1; |
| tcg_out_movi(s, TCG_TYPE_I32, ret, hi); |
| tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_T2, lo); |
| tcg_out_arithi(s, ret, ret, 32, SHIFT_SLLX); |
| tcg_out_arith(s, ret, ret, TCG_REG_T2, ARITH_OR); |
| } |
| } |
| |
| static inline void tcg_out_ldst_rr(TCGContext *s, int data, int a1, |
| int a2, int op) |
| { |
| tcg_out32(s, op | INSN_RD(data) | INSN_RS1(a1) | INSN_RS2(a2)); |
| } |
| |
| static inline void tcg_out_ldst(TCGContext *s, int ret, int addr, |
| int offset, int op) |
| { |
| if (check_fit_tl(offset, 13)) { |
| tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(addr) | |
| INSN_IMM13(offset)); |
| } else { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, offset); |
| tcg_out_ldst_rr(s, ret, addr, TCG_REG_T1, op); |
| } |
| } |
| |
| static inline void tcg_out_ld(TCGContext *s, TCGType type, TCGReg ret, |
| TCGReg arg1, intptr_t arg2) |
| { |
| tcg_out_ldst(s, ret, arg1, arg2, (type == TCG_TYPE_I32 ? LDUW : LDX)); |
| } |
| |
| static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg, |
| TCGReg arg1, intptr_t arg2) |
| { |
| tcg_out_ldst(s, arg, arg1, arg2, (type == TCG_TYPE_I32 ? STW : STX)); |
| } |
| |
| static inline void tcg_out_ld_ptr(TCGContext *s, TCGReg ret, uintptr_t arg) |
| { |
| TCGReg base = TCG_REG_G0; |
| if (!check_fit_tl(arg, 10)) { |
| tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ff); |
| base = ret; |
| } |
| tcg_out_ld(s, TCG_TYPE_PTR, ret, base, arg & 0x3ff); |
| } |
| |
| static inline void tcg_out_sety(TCGContext *s, int rs) |
| { |
| tcg_out32(s, WRY | INSN_RS1(TCG_REG_G0) | INSN_RS2(rs)); |
| } |
| |
| static inline void tcg_out_rdy(TCGContext *s, int rd) |
| { |
| tcg_out32(s, RDY | INSN_RD(rd)); |
| } |
| |
| static inline void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
| { |
| if (val != 0) { |
| if (check_fit_tl(val, 13)) |
| tcg_out_arithi(s, reg, reg, val, ARITH_ADD); |
| else { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, val); |
| tcg_out_arith(s, reg, reg, TCG_REG_T1, ARITH_ADD); |
| } |
| } |
| } |
| |
| static void tcg_out_div32(TCGContext *s, int rd, int rs1, |
| int val2, int val2const, int uns) |
| { |
| /* Load Y with the sign/zero extension of RS1 to 64-bits. */ |
| if (uns) { |
| tcg_out_sety(s, TCG_REG_G0); |
| } else { |
| tcg_out_arithi(s, TCG_REG_T1, rs1, 31, SHIFT_SRA); |
| tcg_out_sety(s, TCG_REG_T1); |
| } |
| |
| tcg_out_arithc(s, rd, rs1, val2, val2const, |
| uns ? ARITH_UDIV : ARITH_SDIV); |
| } |
| |
| static inline void tcg_out_nop(TCGContext *s) |
| { |
| tcg_out_sethi(s, TCG_REG_G0, 0); |
| } |
| |
| static const uint8_t tcg_cond_to_bcond[] = { |
| [TCG_COND_EQ] = COND_E, |
| [TCG_COND_NE] = COND_NE, |
| [TCG_COND_LT] = COND_L, |
| [TCG_COND_GE] = COND_GE, |
| [TCG_COND_LE] = COND_LE, |
| [TCG_COND_GT] = COND_G, |
| [TCG_COND_LTU] = COND_CS, |
| [TCG_COND_GEU] = COND_CC, |
| [TCG_COND_LEU] = COND_LEU, |
| [TCG_COND_GTU] = COND_GU, |
| }; |
| |
| static const uint8_t tcg_cond_to_rcond[] = { |
| [TCG_COND_EQ] = RCOND_Z, |
| [TCG_COND_NE] = RCOND_NZ, |
| [TCG_COND_LT] = RCOND_LZ, |
| [TCG_COND_GT] = RCOND_GZ, |
| [TCG_COND_LE] = RCOND_LEZ, |
| [TCG_COND_GE] = RCOND_GEZ |
| }; |
| |
| static void tcg_out_bpcc0(TCGContext *s, int scond, int flags, int off19) |
| { |
| tcg_out32(s, INSN_OP(0) | INSN_OP2(1) | INSN_COND(scond) | flags | off19); |
| } |
| |
| static void tcg_out_bpcc(TCGContext *s, int scond, int flags, int label) |
| { |
| TCGLabel *l = &s->labels[label]; |
| int off19; |
| |
| if (l->has_value) { |
| off19 = INSN_OFF19(l->u.value - (unsigned long)s->code_ptr); |
| } else { |
| /* Make sure to preserve destinations during retranslation. */ |
| off19 = *(uint32_t *)s->code_ptr & INSN_OFF19(-1); |
| tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP19, label, 0); |
| } |
| tcg_out_bpcc0(s, scond, flags, off19); |
| } |
| |
| static void tcg_out_cmp(TCGContext *s, TCGArg c1, TCGArg c2, int c2const) |
| { |
| tcg_out_arithc(s, TCG_REG_G0, c1, c2, c2const, ARITH_SUBCC); |
| } |
| |
| static void tcg_out_brcond_i32(TCGContext *s, TCGCond cond, TCGArg arg1, |
| TCGArg arg2, int const_arg2, int label) |
| { |
| tcg_out_cmp(s, arg1, arg2, const_arg2); |
| tcg_out_bpcc(s, tcg_cond_to_bcond[cond], BPCC_ICC | BPCC_PT, label); |
| tcg_out_nop(s); |
| } |
| |
| static void tcg_out_movcc(TCGContext *s, TCGCond cond, int cc, TCGArg ret, |
| TCGArg v1, int v1const) |
| { |
| tcg_out32(s, ARITH_MOVCC | cc | INSN_RD(ret) |
| | INSN_RS1(tcg_cond_to_bcond[cond]) |
| | (v1const ? INSN_IMM11(v1) : INSN_RS2(v1))); |
| } |
| |
| static void tcg_out_movcond_i32(TCGContext *s, TCGCond cond, TCGArg ret, |
| TCGArg c1, TCGArg c2, int c2const, |
| TCGArg v1, int v1const) |
| { |
| tcg_out_cmp(s, c1, c2, c2const); |
| tcg_out_movcc(s, cond, MOVCC_ICC, ret, v1, v1const); |
| } |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| static void tcg_out_brcond_i64(TCGContext *s, TCGCond cond, TCGArg arg1, |
| TCGArg arg2, int const_arg2, int label) |
| { |
| /* For 64-bit signed comparisons vs zero, we can avoid the compare. */ |
| if (arg2 == 0 && !is_unsigned_cond(cond)) { |
| TCGLabel *l = &s->labels[label]; |
| int off16; |
| |
| if (l->has_value) { |
| off16 = INSN_OFF16(l->u.value - (unsigned long)s->code_ptr); |
| } else { |
| /* Make sure to preserve destinations during retranslation. */ |
| off16 = *(uint32_t *)s->code_ptr & INSN_OFF16(-1); |
| tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP16, label, 0); |
| } |
| tcg_out32(s, INSN_OP(0) | INSN_OP2(3) | BPR_PT | INSN_RS1(arg1) |
| | INSN_COND(tcg_cond_to_rcond[cond]) | off16); |
| } else { |
| tcg_out_cmp(s, arg1, arg2, const_arg2); |
| tcg_out_bpcc(s, tcg_cond_to_bcond[cond], BPCC_XCC | BPCC_PT, label); |
| } |
| tcg_out_nop(s); |
| } |
| |
| static void tcg_out_movr(TCGContext *s, TCGCond cond, TCGArg ret, TCGArg c1, |
| TCGArg v1, int v1const) |
| { |
| tcg_out32(s, ARITH_MOVR | INSN_RD(ret) | INSN_RS1(c1) |
| | (tcg_cond_to_rcond[cond] << 10) |
| | (v1const ? INSN_IMM10(v1) : INSN_RS2(v1))); |
| } |
| |
| static void tcg_out_movcond_i64(TCGContext *s, TCGCond cond, TCGArg ret, |
| TCGArg c1, TCGArg c2, int c2const, |
| TCGArg v1, int v1const) |
| { |
| /* For 64-bit signed comparisons vs zero, we can avoid the compare. |
| Note that the immediate range is one bit smaller, so we must check |
| for that as well. */ |
| if (c2 == 0 && !is_unsigned_cond(cond) |
| && (!v1const || check_fit_tl(v1, 10))) { |
| tcg_out_movr(s, cond, ret, c1, v1, v1const); |
| } else { |
| tcg_out_cmp(s, c1, c2, c2const); |
| tcg_out_movcc(s, cond, MOVCC_XCC, ret, v1, v1const); |
| } |
| } |
| #else |
| static void tcg_out_brcond2_i32(TCGContext *s, TCGCond cond, |
| TCGArg al, TCGArg ah, |
| TCGArg bl, int blconst, |
| TCGArg bh, int bhconst, int label_dest) |
| { |
| int scond, label_next = gen_new_label(); |
| |
| tcg_out_cmp(s, ah, bh, bhconst); |
| |
| /* Note that we fill one of the delay slots with the second compare. */ |
| switch (cond) { |
| case TCG_COND_EQ: |
| tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_next); |
| tcg_out_cmp(s, al, bl, blconst); |
| tcg_out_bpcc(s, COND_E, BPCC_ICC | BPCC_PT, label_dest); |
| break; |
| |
| case TCG_COND_NE: |
| tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_dest); |
| tcg_out_cmp(s, al, bl, blconst); |
| tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_dest); |
| break; |
| |
| default: |
| scond = tcg_cond_to_bcond[tcg_high_cond(cond)]; |
| tcg_out_bpcc(s, scond, BPCC_ICC | BPCC_PT, label_dest); |
| tcg_out_nop(s); |
| tcg_out_bpcc(s, COND_NE, BPCC_ICC | BPCC_PT, label_next); |
| tcg_out_cmp(s, al, bl, blconst); |
| scond = tcg_cond_to_bcond[tcg_unsigned_cond(cond)]; |
| tcg_out_bpcc(s, scond, BPCC_ICC | BPCC_PT, label_dest); |
| break; |
| } |
| tcg_out_nop(s); |
| |
| tcg_out_label(s, label_next, s->code_ptr); |
| } |
| #endif |
| |
| static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGArg ret, |
| TCGArg c1, TCGArg c2, int c2const) |
| { |
| /* For 32-bit comparisons, we can play games with ADDX/SUBX. */ |
| switch (cond) { |
| case TCG_COND_LTU: |
| case TCG_COND_GEU: |
| /* The result of the comparison is in the carry bit. */ |
| break; |
| |
| case TCG_COND_EQ: |
| case TCG_COND_NE: |
| /* For equality, we can transform to inequality vs zero. */ |
| if (c2 != 0) { |
| tcg_out_arithc(s, ret, c1, c2, c2const, ARITH_XOR); |
| } |
| c1 = TCG_REG_G0, c2 = ret, c2const = 0; |
| cond = (cond == TCG_COND_EQ ? TCG_COND_GEU : TCG_COND_LTU); |
| break; |
| |
| case TCG_COND_GTU: |
| case TCG_COND_LEU: |
| /* If we don't need to load a constant into a register, we can |
| swap the operands on GTU/LEU. There's no benefit to loading |
| the constant into a temporary register. */ |
| if (!c2const || c2 == 0) { |
| TCGArg t = c1; |
| c1 = c2; |
| c2 = t; |
| c2const = 0; |
| cond = tcg_swap_cond(cond); |
| break; |
| } |
| /* FALLTHRU */ |
| |
| default: |
| tcg_out_cmp(s, c1, c2, c2const); |
| tcg_out_movi_imm13(s, ret, 0); |
| tcg_out_movcc(s, cond, MOVCC_ICC, ret, 1, 1); |
| return; |
| } |
| |
| tcg_out_cmp(s, c1, c2, c2const); |
| if (cond == TCG_COND_LTU) { |
| tcg_out_arithi(s, ret, TCG_REG_G0, 0, ARITH_ADDX); |
| } else { |
| tcg_out_arithi(s, ret, TCG_REG_G0, -1, ARITH_SUBX); |
| } |
| } |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| static void tcg_out_setcond_i64(TCGContext *s, TCGCond cond, TCGArg ret, |
| TCGArg c1, TCGArg c2, int c2const) |
| { |
| /* For 64-bit signed comparisons vs zero, we can avoid the compare |
| if the input does not overlap the output. */ |
| if (c2 == 0 && !is_unsigned_cond(cond) && c1 != ret) { |
| tcg_out_movi_imm13(s, ret, 0); |
| tcg_out_movr(s, cond, ret, c1, 1, 1); |
| } else { |
| tcg_out_cmp(s, c1, c2, c2const); |
| tcg_out_movi_imm13(s, ret, 0); |
| tcg_out_movcc(s, cond, MOVCC_XCC, ret, 1, 1); |
| } |
| } |
| #else |
| static void tcg_out_setcond2_i32(TCGContext *s, TCGCond cond, TCGArg ret, |
| TCGArg al, TCGArg ah, |
| TCGArg bl, int blconst, |
| TCGArg bh, int bhconst) |
| { |
| int tmp = TCG_REG_T1; |
| |
| /* Note that the low parts are fully consumed before tmp is set. */ |
| if (ret != ah && (bhconst || ret != bh)) { |
| tmp = ret; |
| } |
| |
| switch (cond) { |
| case TCG_COND_EQ: |
| case TCG_COND_NE: |
| if (bl == 0 && bh == 0) { |
| if (cond == TCG_COND_EQ) { |
| tcg_out_arith(s, TCG_REG_G0, al, ah, ARITH_ORCC); |
| tcg_out_movi(s, TCG_TYPE_I32, ret, 1); |
| } else { |
| tcg_out_arith(s, ret, al, ah, ARITH_ORCC); |
| } |
| } else { |
| tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); |
| tcg_out_cmp(s, ah, bh, bhconst); |
| tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); |
| } |
| tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, cond == TCG_COND_NE, 1); |
| break; |
| |
| default: |
| /* <= : ah < bh | (ah == bh && al <= bl) */ |
| tcg_out_setcond_i32(s, tcg_unsigned_cond(cond), tmp, al, bl, blconst); |
| tcg_out_cmp(s, ah, bh, bhconst); |
| tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); |
| tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, 0, 1); |
| tcg_out_movcc(s, tcg_high_cond(cond), MOVCC_ICC, ret, 1, 1); |
| break; |
| } |
| } |
| #endif |
| |
| static void tcg_out_addsub2(TCGContext *s, TCGArg rl, TCGArg rh, |
| TCGArg al, TCGArg ah, TCGArg bl, int blconst, |
| TCGArg bh, int bhconst, int opl, int oph) |
| { |
| TCGArg tmp = TCG_REG_T1; |
| |
| /* Note that the low parts are fully consumed before tmp is set. */ |
| if (rl != ah && (bhconst || rl != bh)) { |
| tmp = rl; |
| } |
| |
| tcg_out_arithc(s, tmp, al, bl, blconst, opl); |
| tcg_out_arithc(s, rh, ah, bh, bhconst, oph); |
| tcg_out_mov(s, TCG_TYPE_I32, rl, tmp); |
| } |
| |
| static inline void tcg_out_calli(TCGContext *s, uintptr_t dest) |
| { |
| intptr_t disp = dest - (uintptr_t)s->code_ptr; |
| |
| if (disp == (int32_t)disp) { |
| tcg_out32(s, CALL | (uint32_t)disp >> 2); |
| } else { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_T1, dest & ~0xfff); |
| tcg_out_arithi(s, TCG_REG_O7, TCG_REG_T1, dest & 0xfff, JMPL); |
| } |
| } |
| |
| #ifdef CONFIG_SOFTMMU |
| static uintptr_t qemu_ld_trampoline[16]; |
| static uintptr_t qemu_st_trampoline[16]; |
| |
| static void build_trampolines(TCGContext *s) |
| { |
| static uintptr_t const qemu_ld_helpers[16] = { |
| [MO_UB] = (uintptr_t)helper_ret_ldub_mmu, |
| [MO_SB] = (uintptr_t)helper_ret_ldsb_mmu, |
| [MO_LEUW] = (uintptr_t)helper_le_lduw_mmu, |
| [MO_LESW] = (uintptr_t)helper_le_ldsw_mmu, |
| [MO_LEUL] = (uintptr_t)helper_le_ldul_mmu, |
| [MO_LEQ] = (uintptr_t)helper_le_ldq_mmu, |
| [MO_BEUW] = (uintptr_t)helper_be_lduw_mmu, |
| [MO_BESW] = (uintptr_t)helper_be_ldsw_mmu, |
| [MO_BEUL] = (uintptr_t)helper_be_ldul_mmu, |
| [MO_BEQ] = (uintptr_t)helper_be_ldq_mmu, |
| }; |
| static uintptr_t const qemu_st_helpers[16] = { |
| [MO_UB] = (uintptr_t)helper_ret_stb_mmu, |
| [MO_LEUW] = (uintptr_t)helper_le_stw_mmu, |
| [MO_LEUL] = (uintptr_t)helper_le_stl_mmu, |
| [MO_LEQ] = (uintptr_t)helper_le_stq_mmu, |
| [MO_BEUW] = (uintptr_t)helper_be_stw_mmu, |
| [MO_BEUL] = (uintptr_t)helper_be_stl_mmu, |
| [MO_BEQ] = (uintptr_t)helper_be_stq_mmu, |
| }; |
| |
| int i; |
| TCGReg ra; |
| uintptr_t tramp; |
| |
| for (i = 0; i < 16; ++i) { |
| if (qemu_ld_helpers[i] == 0) { |
| continue; |
| } |
| |
| /* May as well align the trampoline. */ |
| tramp = (uintptr_t)s->code_ptr; |
| while (tramp & 15) { |
| tcg_out_nop(s); |
| tramp += 4; |
| } |
| qemu_ld_trampoline[i] = tramp; |
| |
| /* Find the retaddr argument register. */ |
| ra = TCG_REG_O3 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS); |
| |
| /* Set the retaddr operand. */ |
| tcg_out_mov(s, TCG_TYPE_PTR, ra, TCG_REG_O7); |
| /* Set the env operand. */ |
| tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O0, TCG_AREG0); |
| /* Tail call. */ |
| tcg_out_calli(s, qemu_ld_helpers[i]); |
| tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O7, ra); |
| } |
| |
| for (i = 0; i < 16; ++i) { |
| if (qemu_st_helpers[i] == 0) { |
| continue; |
| } |
| |
| /* May as well align the trampoline. */ |
| tramp = (uintptr_t)s->code_ptr; |
| while (tramp & 15) { |
| tcg_out_nop(s); |
| tramp += 4; |
| } |
| qemu_st_trampoline[i] = tramp; |
| |
| /* Find the retaddr argument. For 32-bit, this may be past the |
| last argument register, and need passing on the stack. */ |
| ra = (TCG_REG_O4 |
| + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) |
| + (TCG_TARGET_REG_BITS == 32 && (i & MO_SIZE) == MO_64)); |
| |
| /* Set the retaddr operand. */ |
| if (ra >= TCG_REG_O6) { |
| tcg_out_st(s, TCG_TYPE_PTR, TCG_REG_O7, TCG_REG_CALL_STACK, |
| TCG_TARGET_CALL_STACK_OFFSET); |
| ra = TCG_REG_G1; |
| } |
| tcg_out_mov(s, TCG_TYPE_PTR, ra, TCG_REG_O7); |
| /* Set the env operand. */ |
| tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O0, TCG_AREG0); |
| /* Tail call. */ |
| tcg_out_calli(s, qemu_st_helpers[i]); |
| tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_O7, ra); |
| } |
| } |
| #endif |
| |
| /* Generate global QEMU prologue and epilogue code */ |
| static void tcg_target_qemu_prologue(TCGContext *s) |
| { |
| int tmp_buf_size, frame_size; |
| |
| /* The TCG temp buffer is at the top of the frame, immediately |
| below the frame pointer. */ |
| tmp_buf_size = CPU_TEMP_BUF_NLONGS * (int)sizeof(long); |
| tcg_set_frame(s, TCG_REG_I6, TCG_TARGET_STACK_BIAS - tmp_buf_size, |
| tmp_buf_size); |
| |
| /* TCG_TARGET_CALL_STACK_OFFSET includes the stack bias, but is |
| otherwise the minimal frame usable by callees. */ |
| frame_size = TCG_TARGET_CALL_STACK_OFFSET - TCG_TARGET_STACK_BIAS; |
| frame_size += TCG_STATIC_CALL_ARGS_SIZE + tmp_buf_size; |
| frame_size += TCG_TARGET_STACK_ALIGN - 1; |
| frame_size &= -TCG_TARGET_STACK_ALIGN; |
| tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) | |
| INSN_IMM13(-frame_size)); |
| |
| #ifdef CONFIG_USE_GUEST_BASE |
| if (GUEST_BASE != 0) { |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, GUEST_BASE); |
| tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG); |
| } |
| #endif |
| |
| tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I1, 0, JMPL); |
| /* delay slot */ |
| tcg_out_nop(s); |
| |
| /* No epilogue required. We issue ret + restore directly in the TB. */ |
| |
| #ifdef CONFIG_SOFTMMU |
| build_trampolines(s); |
| #endif |
| } |
| |
| #if defined(CONFIG_SOFTMMU) |
| /* Perform the TLB load and compare. |
| |
| Inputs: |
| ADDRLO and ADDRHI contain the possible two parts of the address. |
| |
| MEM_INDEX and S_BITS are the memory context and log2 size of the load. |
| |
| WHICH is the offset into the CPUTLBEntry structure of the slot to read. |
| This should be offsetof addr_read or addr_write. |
| |
| The result of the TLB comparison is in %[ix]cc. The sanitized address |
| is in the returned register, maybe %o0. The TLB addend is in %o1. */ |
| |
| static TCGReg tcg_out_tlb_load(TCGContext *s, TCGReg addrlo, TCGReg addrhi, |
| int mem_index, TCGMemOp s_bits, int which) |
| { |
| const TCGReg r0 = TCG_REG_O0; |
| const TCGReg r1 = TCG_REG_O1; |
| const TCGReg r2 = TCG_REG_O2; |
| TCGReg addr = addrlo; |
| int tlb_ofs; |
| |
| if (TCG_TARGET_REG_BITS == 32 && TARGET_LONG_BITS == 64) { |
| /* Assemble the 64-bit address in R0. */ |
| tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL); |
| tcg_out_arithi(s, r1, addrhi, 32, SHIFT_SLLX); |
| tcg_out_arith(s, r0, r0, r1, ARITH_OR); |
| addr = r0; |
| } |
| |
| /* Shift the page number down. */ |
| tcg_out_arithi(s, r1, addrlo, TARGET_PAGE_BITS, SHIFT_SRL); |
| |
| /* Mask out the page offset, except for the required alignment. */ |
| tcg_out_movi(s, TCG_TYPE_TL, TCG_REG_T1, |
| TARGET_PAGE_MASK | ((1 << s_bits) - 1)); |
| |
| /* Mask the tlb index. */ |
| tcg_out_arithi(s, r1, r1, CPU_TLB_SIZE - 1, ARITH_AND); |
| |
| /* Mask page, part 2. */ |
| tcg_out_arith(s, r0, addr, TCG_REG_T1, ARITH_AND); |
| |
| /* Shift the tlb index into place. */ |
| tcg_out_arithi(s, r1, r1, CPU_TLB_ENTRY_BITS, SHIFT_SLL); |
| |
| /* Relative to the current ENV. */ |
| tcg_out_arith(s, r1, TCG_AREG0, r1, ARITH_ADD); |
| |
| /* Find a base address that can load both tlb comparator and addend. */ |
| tlb_ofs = offsetof(CPUArchState, tlb_table[mem_index][0]); |
| if (!check_fit_tl(tlb_ofs + sizeof(CPUTLBEntry), 13)) { |
| tcg_out_addi(s, r1, tlb_ofs & ~0x3ff); |
| tlb_ofs &= 0x3ff; |
| } |
| |
| /* Load the tlb comparator and the addend. */ |
| tcg_out_ld(s, TCG_TYPE_TL, r2, r1, tlb_ofs + which); |
| tcg_out_ld(s, TCG_TYPE_PTR, r1, r1, tlb_ofs+offsetof(CPUTLBEntry, addend)); |
| |
| /* subcc arg0, arg2, %g0 */ |
| tcg_out_cmp(s, r0, r2, 0); |
| |
| /* If the guest address must be zero-extended, do so now. */ |
| if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) { |
| tcg_out_arithi(s, r0, addrlo, 0, SHIFT_SRL); |
| return r0; |
| } |
| return addrlo; |
| } |
| #endif /* CONFIG_SOFTMMU */ |
| |
| static const int qemu_ld_opc[16] = { |
| [MO_UB] = LDUB, |
| [MO_SB] = LDSB, |
| |
| [MO_BEUW] = LDUH, |
| [MO_BESW] = LDSH, |
| [MO_BEUL] = LDUW, |
| [MO_BESL] = LDSW, |
| [MO_BEQ] = LDX, |
| |
| [MO_LEUW] = LDUH_LE, |
| [MO_LESW] = LDSH_LE, |
| [MO_LEUL] = LDUW_LE, |
| [MO_LESL] = LDSW_LE, |
| [MO_LEQ] = LDX_LE, |
| }; |
| |
| static const int qemu_st_opc[16] = { |
| [MO_UB] = STB, |
| |
| [MO_BEUW] = STH, |
| [MO_BEUL] = STW, |
| [MO_BEQ] = STX, |
| |
| [MO_LEUW] = STH_LE, |
| [MO_LEUL] = STW_LE, |
| [MO_LEQ] = STX_LE, |
| }; |
| |
| static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is64) |
| { |
| TCGReg addrlo, datalo, datahi, addrhi __attribute__((unused)); |
| TCGMemOp memop, s_bits; |
| #if defined(CONFIG_SOFTMMU) |
| TCGReg addrz, param; |
| uintptr_t func; |
| int memi; |
| uint32_t *label_ptr[2]; |
| #endif |
| |
| datalo = *args++; |
| datahi = (TCG_TARGET_REG_BITS == 32 && is64 ? *args++ : 0); |
| addrlo = *args++; |
| addrhi = (TARGET_LONG_BITS > TCG_TARGET_REG_BITS ? *args++ : 0); |
| memop = *args++; |
| s_bits = memop & MO_SIZE; |
| |
| #if defined(CONFIG_SOFTMMU) |
| memi = *args++; |
| addrz = tcg_out_tlb_load(s, addrlo, addrhi, memi, s_bits, |
| offsetof(CPUTLBEntry, addr_read)); |
| |
| if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { |
| int reg64; |
| |
| /* bne,pn %[xi]cc, label0 */ |
| label_ptr[0] = (uint32_t *)s->code_ptr; |
| tcg_out_bpcc0(s, COND_NE, BPCC_PN |
| | (TARGET_LONG_BITS == 64 ? BPCC_XCC : BPCC_ICC), 0); |
| tcg_out_nop(s); |
| |
| /* TLB Hit. */ |
| /* Load all 64-bits into an O/G register. */ |
| reg64 = (datalo < 16 ? datalo : TCG_REG_O0); |
| tcg_out_ldst_rr(s, reg64, addrz, TCG_REG_O1, qemu_ld_opc[memop]); |
| |
| /* Move the two 32-bit pieces into the destination registers. */ |
| tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX); |
| if (reg64 != datalo) { |
| tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64); |
| } |
| |
| /* b,a,pt label1 */ |
| label_ptr[1] = (uint32_t *)s->code_ptr; |
| tcg_out_bpcc0(s, COND_A, BPCC_A | BPCC_PT, 0); |
| } else { |
| /* The fast path is exactly one insn. Thus we can perform the |
| entire TLB Hit in the (annulled) delay slot of the branch |
| over the TLB Miss case. */ |
| |
| /* beq,a,pt %[xi]cc, label0 */ |
| label_ptr[0] = NULL; |
| label_ptr[1] = (uint32_t *)s->code_ptr; |
| tcg_out_bpcc0(s, COND_E, BPCC_A | BPCC_PT |
| | (TARGET_LONG_BITS == 64 ? BPCC_XCC : BPCC_ICC), 0); |
| /* delay slot */ |
| tcg_out_ldst_rr(s, datalo, addrz, TCG_REG_O1, qemu_ld_opc[memop]); |
| } |
| |
| /* TLB Miss. */ |
| |
| if (label_ptr[0]) { |
| *label_ptr[0] |= INSN_OFF19((unsigned long)s->code_ptr - |
| (unsigned long)label_ptr[0]); |
| } |
| |
| param = TCG_REG_O1; |
| if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) { |
| tcg_out_mov(s, TCG_TYPE_REG, param++, addrhi); |
| } |
| tcg_out_mov(s, TCG_TYPE_REG, param++, addrlo); |
| |
| /* We use the helpers to extend SB and SW data, leaving the case |
| of SL needing explicit extending below. */ |
| if ((memop & ~MO_BSWAP) == MO_SL) { |
| func = qemu_ld_trampoline[memop & ~MO_SIGN]; |
| } else { |
| func = qemu_ld_trampoline[memop]; |
| } |
| assert(func != 0); |
| tcg_out_calli(s, func); |
| /* delay slot */ |
| tcg_out_movi(s, TCG_TYPE_I32, param, memi); |
| |
| switch (memop & ~MO_BSWAP) { |
| case MO_SL: |
| tcg_out_arithi(s, datalo, TCG_REG_O0, 0, SHIFT_SRA); |
| break; |
| case MO_Q: |
| if (TCG_TARGET_REG_BITS == 32) { |
| tcg_out_mov(s, TCG_TYPE_REG, datahi, TCG_REG_O0); |
| tcg_out_mov(s, TCG_TYPE_REG, datalo, TCG_REG_O1); |
| break; |
| } |
| /* FALLTHRU */ |
| default: |
| /* mov */ |
| tcg_out_mov(s, TCG_TYPE_REG, datalo, TCG_REG_O0); |
| break; |
| } |
| |
| *label_ptr[1] |= INSN_OFF19((unsigned long)s->code_ptr - |
| (unsigned long)label_ptr[1]); |
| #else |
| if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) { |
| tcg_out_arithi(s, TCG_REG_T1, addrlo, 0, SHIFT_SRL); |
| addrlo = TCG_REG_T1; |
| } |
| if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { |
| int reg64 = (datalo < 16 ? datalo : TCG_REG_O0); |
| |
| tcg_out_ldst_rr(s, reg64, addrlo, |
| (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), |
| qemu_ld_opc[memop]); |
| |
| tcg_out_arithi(s, datahi, reg64, 32, SHIFT_SRLX); |
| if (reg64 != datalo) { |
| tcg_out_mov(s, TCG_TYPE_I32, datalo, reg64); |
| } |
| } else { |
| tcg_out_ldst_rr(s, datalo, addrlo, |
| (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), |
| qemu_ld_opc[memop]); |
| } |
| #endif /* CONFIG_SOFTMMU */ |
| } |
| |
| static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is64) |
| { |
| TCGReg addrlo, datalo, datahi, addrhi __attribute__((unused)); |
| TCGMemOp memop, s_bits; |
| #if defined(CONFIG_SOFTMMU) |
| TCGReg addrz, datafull, param; |
| uintptr_t func; |
| int memi; |
| uint32_t *label_ptr; |
| #endif |
| |
| datalo = *args++; |
| datahi = (TCG_TARGET_REG_BITS == 32 && is64 ? *args++ : 0); |
| addrlo = *args++; |
| addrhi = (TARGET_LONG_BITS > TCG_TARGET_REG_BITS ? *args++ : 0); |
| memop = *args++; |
| s_bits = memop & MO_SIZE; |
| |
| #if defined(CONFIG_SOFTMMU) |
| memi = *args++; |
| addrz = tcg_out_tlb_load(s, addrlo, addrhi, memi, s_bits, |
| offsetof(CPUTLBEntry, addr_write)); |
| |
| datafull = datalo; |
| if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { |
| /* Reconstruct the full 64-bit value. */ |
| tcg_out_arithi(s, TCG_REG_T1, datalo, 0, SHIFT_SRL); |
| tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX); |
| tcg_out_arith(s, TCG_REG_O2, TCG_REG_T1, TCG_REG_O2, ARITH_OR); |
| datafull = TCG_REG_O2; |
| } |
| |
| /* The fast path is exactly one insn. Thus we can perform the entire |
| TLB Hit in the (annulled) delay slot of the branch over TLB Miss. */ |
| /* beq,a,pt %[xi]cc, label0 */ |
| label_ptr = (uint32_t *)s->code_ptr; |
| tcg_out_bpcc0(s, COND_E, BPCC_A | BPCC_PT |
| | (TARGET_LONG_BITS == 64 ? BPCC_XCC : BPCC_ICC), 0); |
| /* delay slot */ |
| tcg_out_ldst_rr(s, datafull, addrz, TCG_REG_O1, qemu_st_opc[memop]); |
| |
| /* TLB Miss. */ |
| |
| param = TCG_REG_O1; |
| if (TARGET_LONG_BITS > TCG_TARGET_REG_BITS) { |
| tcg_out_mov(s, TCG_TYPE_REG, param++, addrhi); |
| } |
| tcg_out_mov(s, TCG_TYPE_REG, param++, addrlo); |
| if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { |
| tcg_out_mov(s, TCG_TYPE_REG, param++, datahi); |
| } |
| tcg_out_mov(s, TCG_TYPE_REG, param++, datalo); |
| |
| func = qemu_st_trampoline[memop]; |
| assert(func != 0); |
| tcg_out_calli(s, func); |
| /* delay slot */ |
| tcg_out_movi(s, TCG_TYPE_REG, param, memi); |
| |
| *label_ptr |= INSN_OFF19((unsigned long)s->code_ptr - |
| (unsigned long)label_ptr); |
| #else |
| if (TCG_TARGET_REG_BITS == 64 && TARGET_LONG_BITS == 32) { |
| tcg_out_arithi(s, TCG_REG_T1, addrlo, 0, SHIFT_SRL); |
| addrlo = TCG_REG_T1; |
| } |
| if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { |
| tcg_out_arithi(s, TCG_REG_T1, datalo, 0, SHIFT_SRL); |
| tcg_out_arithi(s, TCG_REG_O2, datahi, 32, SHIFT_SLLX); |
| tcg_out_arith(s, TCG_REG_O2, TCG_REG_T1, TCG_REG_O2, ARITH_OR); |
| datalo = TCG_REG_O2; |
| } |
| tcg_out_ldst_rr(s, datalo, addrlo, |
| (GUEST_BASE ? TCG_GUEST_BASE_REG : TCG_REG_G0), |
| qemu_st_opc[memop]); |
| #endif /* CONFIG_SOFTMMU */ |
| } |
| |
| static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args, |
| const int *const_args) |
| { |
| int c; |
| |
| switch (opc) { |
| case INDEX_op_exit_tb: |
| tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I0, args[0]); |
| tcg_out_arithi(s, TCG_REG_G0, TCG_REG_I7, 8, JMPL); |
| tcg_out32(s, RESTORE | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_G0) | |
| INSN_RS2(TCG_REG_G0)); |
| break; |
| case INDEX_op_goto_tb: |
| if (s->tb_jmp_offset) { |
| /* direct jump method */ |
| uint32_t old_insn = *(uint32_t *)s->code_ptr; |
| s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf; |
| /* Make sure to preserve links during retranslation. */ |
| tcg_out32(s, CALL | (old_insn & ~INSN_OP(-1))); |
| } else { |
| /* indirect jump method */ |
| tcg_out_ld_ptr(s, TCG_REG_T1, (uintptr_t)(s->tb_next + args[0])); |
| tcg_out_arithi(s, TCG_REG_G0, TCG_REG_T1, 0, JMPL); |
| } |
| tcg_out_nop(s); |
| s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; |
| break; |
| case INDEX_op_call: |
| if (const_args[0]) { |
| tcg_out_calli(s, args[0]); |
| } else { |
| tcg_out_arithi(s, TCG_REG_O7, args[0], 0, JMPL); |
| } |
| /* delay slot */ |
| tcg_out_nop(s); |
| break; |
| case INDEX_op_br: |
| tcg_out_bpcc(s, COND_A, BPCC_PT, args[0]); |
| tcg_out_nop(s); |
| break; |
| case INDEX_op_movi_i32: |
| tcg_out_movi(s, TCG_TYPE_I32, args[0], (uint32_t)args[1]); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| #define OP_32_64(x) \ |
| glue(glue(case INDEX_op_, x), _i32): \ |
| glue(glue(case INDEX_op_, x), _i64) |
| #else |
| #define OP_32_64(x) \ |
| glue(glue(case INDEX_op_, x), _i32) |
| #endif |
| OP_32_64(ld8u): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDUB); |
| break; |
| OP_32_64(ld8s): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDSB); |
| break; |
| OP_32_64(ld16u): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDUH); |
| break; |
| OP_32_64(ld16s): |
| tcg_out_ldst(s, args[0], args[1], args[2], LDSH); |
| break; |
| case INDEX_op_ld_i32: |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_ld32u_i64: |
| #endif |
| tcg_out_ldst(s, args[0], args[1], args[2], LDUW); |
| break; |
| OP_32_64(st8): |
| tcg_out_ldst(s, args[0], args[1], args[2], STB); |
| break; |
| OP_32_64(st16): |
| tcg_out_ldst(s, args[0], args[1], args[2], STH); |
| break; |
| case INDEX_op_st_i32: |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_st32_i64: |
| #endif |
| tcg_out_ldst(s, args[0], args[1], args[2], STW); |
| break; |
| OP_32_64(add): |
| c = ARITH_ADD; |
| goto gen_arith; |
| OP_32_64(sub): |
| c = ARITH_SUB; |
| goto gen_arith; |
| OP_32_64(and): |
| c = ARITH_AND; |
| goto gen_arith; |
| OP_32_64(andc): |
| c = ARITH_ANDN; |
| goto gen_arith; |
| OP_32_64(or): |
| c = ARITH_OR; |
| goto gen_arith; |
| OP_32_64(orc): |
| c = ARITH_ORN; |
| goto gen_arith; |
| OP_32_64(xor): |
| c = ARITH_XOR; |
| goto gen_arith; |
| case INDEX_op_shl_i32: |
| c = SHIFT_SLL; |
| do_shift32: |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out_arithc(s, args[0], args[1], args[2] & 31, const_args[2], c); |
| break; |
| case INDEX_op_shr_i32: |
| c = SHIFT_SRL; |
| goto do_shift32; |
| case INDEX_op_sar_i32: |
| c = SHIFT_SRA; |
| goto do_shift32; |
| case INDEX_op_mul_i32: |
| c = ARITH_UMUL; |
| goto gen_arith; |
| |
| OP_32_64(neg): |
| c = ARITH_SUB; |
| goto gen_arith1; |
| OP_32_64(not): |
| c = ARITH_ORN; |
| goto gen_arith1; |
| |
| case INDEX_op_div_i32: |
| tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 0); |
| break; |
| case INDEX_op_divu_i32: |
| tcg_out_div32(s, args[0], args[1], args[2], const_args[2], 1); |
| break; |
| |
| case INDEX_op_brcond_i32: |
| tcg_out_brcond_i32(s, args[2], args[0], args[1], const_args[1], |
| args[3]); |
| break; |
| case INDEX_op_setcond_i32: |
| tcg_out_setcond_i32(s, args[3], args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| case INDEX_op_movcond_i32: |
| tcg_out_movcond_i32(s, args[5], args[0], args[1], |
| args[2], const_args[2], args[3], const_args[3]); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 32 |
| case INDEX_op_brcond2_i32: |
| tcg_out_brcond2_i32(s, args[4], args[0], args[1], |
| args[2], const_args[2], |
| args[3], const_args[3], args[5]); |
| break; |
| case INDEX_op_setcond2_i32: |
| tcg_out_setcond2_i32(s, args[5], args[0], args[1], args[2], |
| args[3], const_args[3], |
| args[4], const_args[4]); |
| break; |
| #endif |
| |
| case INDEX_op_add2_i32: |
| tcg_out_addsub2(s, args[0], args[1], args[2], args[3], |
| args[4], const_args[4], args[5], const_args[5], |
| ARITH_ADDCC, ARITH_ADDX); |
| break; |
| case INDEX_op_sub2_i32: |
| tcg_out_addsub2(s, args[0], args[1], args[2], args[3], |
| args[4], const_args[4], args[5], const_args[5], |
| ARITH_SUBCC, ARITH_SUBX); |
| break; |
| case INDEX_op_mulu2_i32: |
| tcg_out_arithc(s, args[0], args[2], args[3], const_args[3], |
| ARITH_UMUL); |
| tcg_out_rdy(s, args[1]); |
| break; |
| |
| case INDEX_op_qemu_ld_i32: |
| tcg_out_qemu_ld(s, args, 0); |
| break; |
| case INDEX_op_qemu_ld_i64: |
| tcg_out_qemu_ld(s, args, 1); |
| break; |
| case INDEX_op_qemu_st_i32: |
| tcg_out_qemu_st(s, args, 0); |
| break; |
| case INDEX_op_qemu_st_i64: |
| tcg_out_qemu_st(s, args, 1); |
| break; |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| case INDEX_op_movi_i64: |
| tcg_out_movi(s, TCG_TYPE_I64, args[0], args[1]); |
| break; |
| case INDEX_op_ld32s_i64: |
| tcg_out_ldst(s, args[0], args[1], args[2], LDSW); |
| break; |
| case INDEX_op_ld_i64: |
| tcg_out_ldst(s, args[0], args[1], args[2], LDX); |
| break; |
| case INDEX_op_st_i64: |
| tcg_out_ldst(s, args[0], args[1], args[2], STX); |
| break; |
| case INDEX_op_shl_i64: |
| c = SHIFT_SLLX; |
| do_shift64: |
| /* Limit immediate shift count lest we create an illegal insn. */ |
| tcg_out_arithc(s, args[0], args[1], args[2] & 63, const_args[2], c); |
| break; |
| case INDEX_op_shr_i64: |
| c = SHIFT_SRLX; |
| goto do_shift64; |
| case INDEX_op_sar_i64: |
| c = SHIFT_SRAX; |
| goto do_shift64; |
| case INDEX_op_mul_i64: |
| c = ARITH_MULX; |
| goto gen_arith; |
| case INDEX_op_div_i64: |
| c = ARITH_SDIVX; |
| goto gen_arith; |
| case INDEX_op_divu_i64: |
| c = ARITH_UDIVX; |
| goto gen_arith; |
| case INDEX_op_ext32s_i64: |
| tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRA); |
| break; |
| case INDEX_op_ext32u_i64: |
| tcg_out_arithi(s, args[0], args[1], 0, SHIFT_SRL); |
| break; |
| |
| case INDEX_op_brcond_i64: |
| tcg_out_brcond_i64(s, args[2], args[0], args[1], const_args[1], |
| args[3]); |
| break; |
| case INDEX_op_setcond_i64: |
| tcg_out_setcond_i64(s, args[3], args[0], args[1], |
| args[2], const_args[2]); |
| break; |
| case INDEX_op_movcond_i64: |
| tcg_out_movcond_i64(s, args[5], args[0], args[1], |
| args[2], const_args[2], args[3], const_args[3]); |
| break; |
| #endif |
| gen_arith: |
| tcg_out_arithc(s, args[0], args[1], args[2], const_args[2], c); |
| break; |
| |
| gen_arith1: |
| tcg_out_arithc(s, args[0], TCG_REG_G0, args[1], const_args[1], c); |
| break; |
| |
| default: |
| fprintf(stderr, "unknown opcode 0x%x\n", opc); |
| tcg_abort(); |
| } |
| } |
| |
| static const TCGTargetOpDef sparc_op_defs[] = { |
| { INDEX_op_exit_tb, { } }, |
| { INDEX_op_goto_tb, { } }, |
| { INDEX_op_call, { "ri" } }, |
| { INDEX_op_br, { } }, |
| |
| { INDEX_op_mov_i32, { "r", "r" } }, |
| { INDEX_op_movi_i32, { "r" } }, |
| { INDEX_op_ld8u_i32, { "r", "r" } }, |
| { INDEX_op_ld8s_i32, { "r", "r" } }, |
| { INDEX_op_ld16u_i32, { "r", "r" } }, |
| { INDEX_op_ld16s_i32, { "r", "r" } }, |
| { INDEX_op_ld_i32, { "r", "r" } }, |
| { INDEX_op_st8_i32, { "rZ", "r" } }, |
| { INDEX_op_st16_i32, { "rZ", "r" } }, |
| { INDEX_op_st_i32, { "rZ", "r" } }, |
| |
| { INDEX_op_add_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_mul_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_div_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_divu_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_sub_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_and_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_andc_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_or_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_orc_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_xor_i32, { "r", "rZ", "rJ" } }, |
| |
| { INDEX_op_shl_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_shr_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_sar_i32, { "r", "rZ", "rJ" } }, |
| |
| { INDEX_op_neg_i32, { "r", "rJ" } }, |
| { INDEX_op_not_i32, { "r", "rJ" } }, |
| |
| { INDEX_op_brcond_i32, { "rZ", "rJ" } }, |
| { INDEX_op_setcond_i32, { "r", "rZ", "rJ" } }, |
| { INDEX_op_movcond_i32, { "r", "rZ", "rJ", "rI", "0" } }, |
| |
| #if TCG_TARGET_REG_BITS == 32 |
| { INDEX_op_brcond2_i32, { "rZ", "rZ", "rJ", "rJ" } }, |
| { INDEX_op_setcond2_i32, { "r", "rZ", "rZ", "rJ", "rJ" } }, |
| #endif |
| |
| { INDEX_op_add2_i32, { "r", "r", "rZ", "rZ", "rJ", "rJ" } }, |
| { INDEX_op_sub2_i32, { "r", "r", "rZ", "rZ", "rJ", "rJ" } }, |
| { INDEX_op_mulu2_i32, { "r", "r", "rZ", "rJ" } }, |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| { INDEX_op_mov_i64, { "r", "r" } }, |
| { INDEX_op_movi_i64, { "r" } }, |
| { INDEX_op_ld8u_i64, { "r", "r" } }, |
| { INDEX_op_ld8s_i64, { "r", "r" } }, |
| { INDEX_op_ld16u_i64, { "r", "r" } }, |
| { INDEX_op_ld16s_i64, { "r", "r" } }, |
| { INDEX_op_ld32u_i64, { "r", "r" } }, |
| { INDEX_op_ld32s_i64, { "r", "r" } }, |
| { INDEX_op_ld_i64, { "r", "r" } }, |
| { INDEX_op_st8_i64, { "rZ", "r" } }, |
| { INDEX_op_st16_i64, { "rZ", "r" } }, |
| { INDEX_op_st32_i64, { "rZ", "r" } }, |
| { INDEX_op_st_i64, { "rZ", "r" } }, |
| |
| { INDEX_op_add_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_mul_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_div_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_divu_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_sub_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_and_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_andc_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_or_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_orc_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_xor_i64, { "r", "rZ", "rJ" } }, |
| |
| { INDEX_op_shl_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_shr_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_sar_i64, { "r", "rZ", "rJ" } }, |
| |
| { INDEX_op_neg_i64, { "r", "rJ" } }, |
| { INDEX_op_not_i64, { "r", "rJ" } }, |
| |
| { INDEX_op_ext32s_i64, { "r", "r" } }, |
| { INDEX_op_ext32u_i64, { "r", "r" } }, |
| |
| { INDEX_op_brcond_i64, { "rZ", "rJ" } }, |
| { INDEX_op_setcond_i64, { "r", "rZ", "rJ" } }, |
| { INDEX_op_movcond_i64, { "r", "rZ", "rJ", "rI", "0" } }, |
| #endif |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| { INDEX_op_qemu_ld_i32, { "r", "L" } }, |
| { INDEX_op_qemu_ld_i64, { "r", "L" } }, |
| { INDEX_op_qemu_st_i32, { "L", "L" } }, |
| { INDEX_op_qemu_st_i64, { "L", "L" } }, |
| #elif TARGET_LONG_BITS <= TCG_TARGET_REG_BITS |
| { INDEX_op_qemu_ld_i32, { "r", "L" } }, |
| { INDEX_op_qemu_ld_i64, { "r", "r", "L" } }, |
| { INDEX_op_qemu_st_i32, { "L", "L" } }, |
| { INDEX_op_qemu_st_i64, { "L", "L", "L" } }, |
| #else |
| { INDEX_op_qemu_ld_i32, { "r", "L", "L" } }, |
| { INDEX_op_qemu_ld_i64, { "L", "L", "L", "L" } }, |
| { INDEX_op_qemu_st_i32, { "L", "L", "L" } }, |
| { INDEX_op_qemu_st_i64, { "L", "L", "L", "L" } }, |
| #endif |
| |
| { -1 }, |
| }; |
| |
| static void tcg_target_init(TCGContext *s) |
| { |
| tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
| #if TCG_TARGET_REG_BITS == 64 |
| tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I64], 0, 0xffffffff); |
| #endif |
| tcg_regset_set32(tcg_target_call_clobber_regs, 0, |
| (1 << TCG_REG_G1) | |
| (1 << TCG_REG_G2) | |
| (1 << TCG_REG_G3) | |
| (1 << TCG_REG_G4) | |
| (1 << TCG_REG_G5) | |
| (1 << TCG_REG_G6) | |
| (1 << TCG_REG_G7) | |
| (1 << TCG_REG_O0) | |
| (1 << TCG_REG_O1) | |
| (1 << TCG_REG_O2) | |
| (1 << TCG_REG_O3) | |
| (1 << TCG_REG_O4) | |
| (1 << TCG_REG_O5) | |
| (1 << TCG_REG_O7)); |
| |
| tcg_regset_clear(s->reserved_regs); |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_G0); /* zero */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_G6); /* reserved for os */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_G7); /* thread pointer */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6); /* frame pointer */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7); /* return address */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); /* stack pointer */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_T1); /* for internal use */ |
| tcg_regset_set_reg(s->reserved_regs, TCG_REG_T2); /* for internal use */ |
| |
| tcg_add_target_add_op_defs(sparc_op_defs); |
| } |
| |
| #if TCG_TARGET_REG_BITS == 64 |
| # define ELF_HOST_MACHINE EM_SPARCV9 |
| #else |
| # define ELF_HOST_MACHINE EM_SPARC32PLUS |
| # define ELF_HOST_FLAGS EF_SPARC_32PLUS |
| #endif |
| |
| typedef struct { |
| DebugFrameCIE cie; |
| DebugFrameFDEHeader fde; |
| uint8_t fde_def_cfa[TCG_TARGET_REG_BITS == 64 ? 4 : 2]; |
| uint8_t fde_win_save; |
| uint8_t fde_ret_save[3]; |
| } DebugFrame; |
| |
| static DebugFrame debug_frame = { |
| .cie.len = sizeof(DebugFrameCIE)-4, /* length after .len member */ |
| .cie.id = -1, |
| .cie.version = 1, |
| .cie.code_align = 1, |
| .cie.data_align = -sizeof(void *) & 0x7f, |
| .cie.return_column = 15, /* o7 */ |
| |
| /* Total FDE size does not include the "len" member. */ |
| .fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, fde.cie_offset), |
| |
| .fde_def_cfa = { |
| #if TCG_TARGET_REG_BITS == 64 |
| 12, 30, /* DW_CFA_def_cfa i6, 2047 */ |
| (2047 & 0x7f) | 0x80, (2047 >> 7) |
| #else |
| 13, 30 /* DW_CFA_def_cfa_register i6 */ |
| #endif |
| }, |
| .fde_win_save = 0x2d, /* DW_CFA_GNU_window_save */ |
| .fde_ret_save = { 9, 15, 31 }, /* DW_CFA_register o7, i7 */ |
| }; |
| |
| void tcg_register_jit(void *buf, size_t buf_size) |
| { |
| debug_frame.fde.func_start = (uintptr_t)buf; |
| debug_frame.fde.func_len = buf_size; |
| |
| tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame)); |
| } |
| |
| void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr) |
| { |
| uint32_t *ptr = (uint32_t *)jmp_addr; |
| uintptr_t disp = addr - jmp_addr; |
| |
| /* We can reach the entire address space for 32-bit. For 64-bit |
| the code_gen_buffer can't be larger than 2GB. */ |
| assert(disp == (int32_t)disp); |
| |
| *ptr = CALL | (uint32_t)disp >> 2; |
| flush_icache_range(jmp_addr, jmp_addr + 4); |
| } |
