/* * 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. */ 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", }; 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, }; 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[2] = { TCG_REG_O0, TCG_REG_O1, }; 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, tcg_target_long value, tcg_target_long addend) { value += addend; switch (type) { case R_SPARC_32: if (value != (uint32_t)value) tcg_abort(); *(uint32_t *)code_ptr = value; break; case R_SPARC_WDISP22: value -= (long)code_ptr; value >>= 2; if (!check_fit_tl(value, 22)) tcg_abort(); *(uint32_t *)code_ptr = ((*(uint32_t *)code_ptr) & ~0x3fffff) | value; break; default: tcg_abort(); } } /* maximum number of register used for input function arguments */ static inline int tcg_target_get_call_iarg_regs_count(int flags) { return 6; } /* 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': 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; 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, const TCGArgConstraint *arg_ct) { int ct; ct = arg_ct->ct; if (ct & TCG_CT_CONST) 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; } #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_IMM13(x) ((1 << 13) | ((x) & 0x1fff)) #define INSN_OFF22(x) (((x) >> 2) & 0x3fffff) #define INSN_COND(x, a) (((x) << 25) | ((a) << 29)) #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, 0) | INSN_OP2(0x2)) #define ARITH_ADD (INSN_OP(2) | INSN_OP3(0x00)) #define ARITH_AND (INSN_OP(2) | INSN_OP3(0x01)) #define ARITH_OR (INSN_OP(2) | INSN_OP3(0x02)) #define ARITH_ORCC (INSN_OP(2) | INSN_OP3(0x12)) #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(0x10)) #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 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 WRY (INSN_OP(2) | INSN_OP3(0x30)) #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 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, int offset, int op) { tcg_out32(s, op | INSN_RD(rd) | INSN_RS1(rs1) | INSN_IMM13(offset)); } static inline void tcg_out_mov(TCGContext *s, int ret, int 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 inline void tcg_out_movi_imm32(TCGContext *s, int ret, uint32_t arg) { if (check_fit_i32(arg, 12)) tcg_out_movi_imm13(s, ret, arg); else { tcg_out_sethi(s, ret, arg); if (arg & 0x3ff) tcg_out_arithi(s, ret, ret, arg & 0x3ff, ARITH_OR); } } static inline void tcg_out_movi(TCGContext *s, TCGType type, int ret, tcg_target_long arg) { #if defined(__sparc_v9__) && !defined(__sparc_v8plus__) if (!check_fit_tl(arg, 32) && (arg & ~0xffffffffULL) != 0) { tcg_out_movi_imm32(s, TCG_REG_I4, arg >> 32); tcg_out_arithi(s, TCG_REG_I4, TCG_REG_I4, 32, SHIFT_SLLX); tcg_out_movi_imm32(s, ret, arg); tcg_out_arith(s, ret, ret, TCG_REG_I4, ARITH_OR); } else #endif tcg_out_movi_imm32(s, ret, arg); } static inline void tcg_out_ld_raw(TCGContext *s, int ret, tcg_target_long arg) { tcg_out_sethi(s, ret, arg); tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) | INSN_IMM13(arg & 0x3ff)); } static inline void tcg_out_ld_ptr(TCGContext *s, int ret, tcg_target_long arg) { if (!check_fit_tl(arg, 10)) tcg_out_movi(s, TCG_TYPE_PTR, ret, arg & ~0x3ffULL); #if defined(__sparc_v9__) && !defined(__sparc_v8plus__) tcg_out32(s, LDX | INSN_RD(ret) | INSN_RS1(ret) | INSN_IMM13(arg & 0x3ff)); #else tcg_out32(s, LDUW | INSN_RD(ret) | INSN_RS1(ret) | INSN_IMM13(arg & 0x3ff)); #endif } 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_I5, offset); tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) | INSN_RS2(addr)); } } static inline void tcg_out_ldst_asi(TCGContext *s, int ret, int addr, int offset, int op, int asi) { tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_I5, offset); tcg_out32(s, op | INSN_RD(ret) | INSN_RS1(TCG_REG_I5) | INSN_ASI(asi) | INSN_RS2(addr)); } static inline void tcg_out_ld(TCGContext *s, TCGType type, int ret, int arg1, tcg_target_long arg2) { if (type == TCG_TYPE_I32) tcg_out_ldst(s, ret, arg1, arg2, LDUW); else tcg_out_ldst(s, ret, arg1, arg2, LDX); } static inline void tcg_out_st(TCGContext *s, TCGType type, int arg, int arg1, tcg_target_long arg2) { if (type == TCG_TYPE_I32) tcg_out_ldst(s, arg, arg1, arg2, STW); else tcg_out_ldst(s, arg, arg1, arg2, STX); } static inline void tcg_out_sety(TCGContext *s, tcg_target_long val) { if (val == 0 || val == -1) tcg_out32(s, WRY | INSN_IMM13(val)); else fprintf(stderr, "unimplemented sety %ld\n", (long)val); } 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_I5, val); tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_ADD); } } } static inline void tcg_out_andi(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_AND); else { tcg_out_movi(s, TCG_TYPE_I32, TCG_REG_I5, val); tcg_out_arith(s, reg, reg, TCG_REG_I5, ARITH_AND); } } } static inline void tcg_out_nop(TCGContext *s) { tcg_out_sethi(s, TCG_REG_G0, 0); } static void tcg_out_branch(TCGContext *s, int opc, int label_index) { int32_t val; TCGLabel *l = &s->labels[label_index]; if (l->has_value) { val = l->u.value - (tcg_target_long)s->code_ptr; tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) | INSN_OFF22(l->u.value - (unsigned long)s->code_ptr))); } else { tcg_out_reloc(s, s->code_ptr, R_SPARC_WDISP22, label_index, 0); tcg_out32(s, (INSN_OP(0) | INSN_COND(opc, 0) | INSN_OP2(0x2) | 0)); } } static const uint8_t tcg_cond_to_bcond[10] = { [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 void tcg_out_brcond(TCGContext *s, int cond, TCGArg arg1, TCGArg arg2, int const_arg2, int label_index) { if (const_arg2 && arg2 == 0) /* orcc %g0, r, %g0 */ tcg_out_arith(s, TCG_REG_G0, TCG_REG_G0, arg1, ARITH_ORCC); else /* subcc r1, r2, %g0 */ tcg_out_arith(s, TCG_REG_G0, arg1, arg2, ARITH_SUBCC); tcg_out_branch(s, tcg_cond_to_bcond[cond], label_index); tcg_out_nop(s); } /* Generate global QEMU prologue and epilogue code */ void tcg_target_qemu_prologue(TCGContext *s) { tcg_out32(s, SAVE | INSN_RD(TCG_REG_O6) | INSN_RS1(TCG_REG_O6) | INSN_IMM13(-TCG_TARGET_STACK_MINFRAME)); tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I0) | INSN_RS2(TCG_REG_G0)); tcg_out_nop(s); } #if defined(CONFIG_SOFTMMU) extern void __ldb_mmu(void); extern void __ldw_mmu(void); extern void __ldl_mmu(void); extern void __ldq_mmu(void); extern void __stb_mmu(void); extern void __stw_mmu(void); extern void __stl_mmu(void); extern void __stq_mmu(void); static const void * const qemu_ld_helpers[4] = { __ldb_mmu, __ldw_mmu, __ldl_mmu, __ldq_mmu, }; static const void * const qemu_st_helpers[4] = { __stb_mmu, __stw_mmu, __stl_mmu, __stq_mmu, }; #endif static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, int opc) { int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits; int target_ld_op, host_ld_op, sll_op, sra_op; #if defined(CONFIG_SOFTMMU) uint32_t *label1_ptr, *label2_ptr; #endif data_reg = *args++; addr_reg = *args++; mem_index = *args; s_bits = opc & 3; arg0 = TCG_REG_O0; arg1 = TCG_REG_O1; arg2 = TCG_REG_O2; #if TARGET_LONG_BITS == 32 target_ld_op = LDUW; #else target_ld_op = LDX; #endif #ifdef __arch64__ host_ld_op = LDX; sll_op = SHIFT_SLLX; sra_op = SHIFT_SRAX; #else host_ld_op = LDUW; sll_op = SHIFT_SLL; sra_op = SHIFT_SRA; #endif #if defined(CONFIG_SOFTMMU) /* srl addr_reg, x, arg1 */ tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, SHIFT_SRL); /* and addr_reg, x, arg0 */ tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1), ARITH_AND); /* and arg1, x, arg1 */ tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); /* add arg1, x, arg1 */ tcg_out_addi(s, arg1, offsetof(CPUState, tlb_table[mem_index][0].addr_read)); /* add env, arg1, arg1 */ tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD); /* ld [arg1], arg2 */ tcg_out32(s, target_ld_op | INSN_RD(arg2) | INSN_RS1(arg1) | INSN_RS2(TCG_REG_G0)); /* subcc arg0, arg2, %g0 */ tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC); /* will become: be label1 */ label1_ptr = (uint32_t *)s->code_ptr; tcg_out32(s, 0); /* mov (delay slot) */ tcg_out_mov(s, arg0, addr_reg); /* XXX: move that code at the end of the TB */ /* qemu_ld_helper[s_bits](arg0, arg1) */ tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_ld_helpers[s_bits] - (tcg_target_ulong)s->code_ptr) >> 2) & 0x3fffffff)); /* mov (delay slot) */ tcg_out_movi(s, TCG_TYPE_I32, arg1, mem_index); /* data_reg = sign_extend(arg0) */ switch(opc) { case 0 | 4: /* sll arg0, 24/56, data_reg */ tcg_out_arithi(s, data_reg, arg0, (int)sizeof(tcg_target_long) * 8 - 8, sll_op); /* sra data_reg, 24/56, data_reg */ tcg_out_arithi(s, data_reg, data_reg, (int)sizeof(tcg_target_long) * 8 - 8, sra_op); break; case 1 | 4: /* sll arg0, 16/48, data_reg */ tcg_out_arithi(s, data_reg, arg0, (int)sizeof(tcg_target_long) * 8 - 16, sll_op); /* sra data_reg, 16/48, data_reg */ tcg_out_arithi(s, data_reg, data_reg, (int)sizeof(tcg_target_long) * 8 - 16, sra_op); break; case 2 | 4: /* sll arg0, 32, data_reg */ tcg_out_arithi(s, data_reg, arg0, 32, sll_op); /* sra data_reg, 32, data_reg */ tcg_out_arithi(s, data_reg, data_reg, 32, sra_op); break; case 0: case 1: case 2: case 3: default: /* mov */ tcg_out_mov(s, data_reg, arg0); break; } /* will become: ba label2 */ label2_ptr = (uint32_t *)s->code_ptr; tcg_out32(s, 0); /* nop (delay slot */ tcg_out_nop(s); /* label1: */ *label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) | INSN_OFF22((unsigned long)s->code_ptr - (unsigned long)label1_ptr)); /* ld [arg1 + x], arg1 */ tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_read), host_ld_op); /* add addr_reg, arg1, arg0 */ tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); #else arg0 = addr_reg; #endif switch(opc) { case 0: /* ldub [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDUB); break; case 0 | 4: /* ldsb [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDSB); break; case 1: #ifdef TARGET_WORDS_BIGENDIAN /* lduh [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDUH); #else /* lduha [arg0] ASI_PRIMARY_LITTLE, data_reg */ tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUHA, ASI_PRIMARY_LITTLE); #endif break; case 1 | 4: #ifdef TARGET_WORDS_BIGENDIAN /* ldsh [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDSH); #else /* ldsha [arg0] ASI_PRIMARY_LITTLE, data_reg */ tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSHA, ASI_PRIMARY_LITTLE); #endif break; case 2: #ifdef TARGET_WORDS_BIGENDIAN /* lduw [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDUW); #else /* lduwa [arg0] ASI_PRIMARY_LITTLE, data_reg */ tcg_out_ldst_asi(s, data_reg, arg0, 0, LDUWA, ASI_PRIMARY_LITTLE); #endif break; case 2 | 4: #ifdef TARGET_WORDS_BIGENDIAN /* ldsw [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDSW); #else /* ldswa [arg0] ASI_PRIMARY_LITTLE, data_reg */ tcg_out_ldst_asi(s, data_reg, arg0, 0, LDSWA, ASI_PRIMARY_LITTLE); #endif break; case 3: #ifdef TARGET_WORDS_BIGENDIAN /* ldx [arg0], data_reg */ tcg_out_ldst(s, data_reg, arg0, 0, LDX); #else /* ldxa [arg0] ASI_PRIMARY_LITTLE, data_reg */ tcg_out_ldst_asi(s, data_reg, arg0, 0, LDXA, ASI_PRIMARY_LITTLE); #endif break; default: tcg_abort(); } #if defined(CONFIG_SOFTMMU) /* label2: */ *label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) | INSN_OFF22((unsigned long)s->code_ptr - (unsigned long)label2_ptr)); #endif } static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, int opc) { int addr_reg, data_reg, arg0, arg1, arg2, mem_index, s_bits; int target_ld_op, host_ld_op; #if defined(CONFIG_SOFTMMU) uint32_t *label1_ptr, *label2_ptr; #endif data_reg = *args++; addr_reg = *args++; mem_index = *args; s_bits = opc; arg0 = TCG_REG_O0; arg1 = TCG_REG_O1; arg2 = TCG_REG_O2; #if TARGET_LONG_BITS == 32 target_ld_op = LDUW; #else target_ld_op = LDX; #endif #ifdef __arch64__ host_ld_op = LDX; #else host_ld_op = LDUW; #endif #if defined(CONFIG_SOFTMMU) /* srl addr_reg, x, arg1 */ tcg_out_arithi(s, arg1, addr_reg, TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS, SHIFT_SRL); /* and addr_reg, x, arg0 */ tcg_out_arithi(s, arg0, addr_reg, TARGET_PAGE_MASK | ((1 << s_bits) - 1), ARITH_AND); /* and arg1, x, arg1 */ tcg_out_andi(s, arg1, (CPU_TLB_SIZE - 1) << CPU_TLB_ENTRY_BITS); /* add arg1, x, arg1 */ tcg_out_addi(s, arg1, offsetof(CPUState, tlb_table[mem_index][0].addr_write)); /* add env, arg1, arg1 */ tcg_out_arith(s, arg1, TCG_AREG0, arg1, ARITH_ADD); /* ld [arg1], arg2 */ tcg_out32(s, target_ld_op | INSN_RD(arg2) | INSN_RS1(arg1) | INSN_RS2(TCG_REG_G0)); /* subcc arg0, arg2, %g0 */ tcg_out_arith(s, TCG_REG_G0, arg0, arg2, ARITH_SUBCC); /* will become: be label1 */ label1_ptr = (uint32_t *)s->code_ptr; tcg_out32(s, 0); /* mov (delay slot) */ tcg_out_mov(s, arg0, addr_reg); /* mov */ tcg_out_mov(s, arg1, data_reg); /* XXX: move that code at the end of the TB */ /* qemu_st_helper[s_bits](arg0, arg1, arg2) */ tcg_out32(s, CALL | ((((tcg_target_ulong)qemu_st_helpers[s_bits] - (tcg_target_ulong)s->code_ptr) >> 2) & 0x3fffffff)); /* mov (delay slot) */ tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index); /* will become: ba label2 */ label2_ptr = (uint32_t *)s->code_ptr; tcg_out32(s, 0); /* nop (delay slot) */ tcg_out_nop(s); /* label1: */ *label1_ptr = (INSN_OP(0) | INSN_COND(COND_E, 0) | INSN_OP2(0x2) | INSN_OFF22((unsigned long)s->code_ptr - (unsigned long)label1_ptr)); /* ld [arg1 + x], arg1 */ tcg_out_ldst(s, arg1, arg1, offsetof(CPUTLBEntry, addend) - offsetof(CPUTLBEntry, addr_write), host_ld_op); /* add addr_reg, arg1, arg0 */ tcg_out_arith(s, arg0, addr_reg, arg1, ARITH_ADD); #else arg0 = addr_reg; #endif switch(opc) { case 0: /* stb data_reg, [arg0] */ tcg_out_ldst(s, data_reg, arg0, 0, STB); break; case 1: #ifdef TARGET_WORDS_BIGENDIAN /* sth data_reg, [arg0] */ tcg_out_ldst(s, data_reg, arg0, 0, STH); #else /* stha data_reg, [arg0] ASI_PRIMARY_LITTLE */ tcg_out_ldst_asi(s, data_reg, arg0, 0, STHA, ASI_PRIMARY_LITTLE); #endif break; case 2: #ifdef TARGET_WORDS_BIGENDIAN /* stw data_reg, [arg0] */ tcg_out_ldst(s, data_reg, arg0, 0, STW); #else /* stwa data_reg, [arg0] ASI_PRIMARY_LITTLE */ tcg_out_ldst_asi(s, data_reg, arg0, 0, STWA, ASI_PRIMARY_LITTLE); #endif break; case 3: #ifdef TARGET_WORDS_BIGENDIAN /* stx data_reg, [arg0] */ tcg_out_ldst(s, data_reg, arg0, 0, STX); #else /* stxa data_reg, [arg0] ASI_PRIMARY_LITTLE */ tcg_out_ldst_asi(s, data_reg, arg0, 0, STXA, ASI_PRIMARY_LITTLE); #endif break; default: tcg_abort(); } #if defined(CONFIG_SOFTMMU) /* label2: */ *label2_ptr = (INSN_OP(0) | INSN_COND(COND_A, 0) | INSN_OP2(0x2) | INSN_OFF22((unsigned long)s->code_ptr - (unsigned long)label2_ptr)); #endif } static inline void tcg_out_op(TCGContext *s, int 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_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I7) | INSN_IMM13(8)); 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 */ tcg_out_sethi(s, TCG_REG_I5, args[0] & 0xffffe000); tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) | INSN_IMM13((args[0] & 0x1fff))); s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf; } else { /* indirect jump method */ tcg_out_ld_ptr(s, TCG_REG_I5, (tcg_target_long)(s->tb_next + args[0])); tcg_out32(s, JMPL | INSN_RD(TCG_REG_G0) | INSN_RS1(TCG_REG_I5) | INSN_RS2(TCG_REG_G0)); } tcg_out_nop(s); s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; break; case INDEX_op_call: { unsigned int st_op, ld_op; #ifdef __arch64__ st_op = STX; ld_op = LDX; #else st_op = STW; ld_op = LDUW; #endif if (const_args[0]) tcg_out32(s, CALL | ((((tcg_target_ulong)args[0] - (tcg_target_ulong)s->code_ptr) >> 2) & 0x3fffffff)); else { tcg_out_ld_ptr(s, TCG_REG_I5, (tcg_target_long)(s->tb_next + args[0])); tcg_out32(s, JMPL | INSN_RD(TCG_REG_O7) | INSN_RS1(TCG_REG_I5) | INSN_RS2(TCG_REG_G0)); } /* Store AREG0 in stack to avoid ugly glibc bugs that mangle global registers */ tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), st_op); // delay slot tcg_out_ldst(s, TCG_AREG0, TCG_REG_CALL_STACK, TCG_TARGET_CALL_STACK_OFFSET - sizeof(long), ld_op); } break; case INDEX_op_jmp: case INDEX_op_br: tcg_out_branch(s, COND_A, 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 defined(__sparc_v9__) && !defined(__sparc_v8plus__) #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 defined(__sparc_v9__) && !defined(__sparc_v8plus__) 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 defined(__sparc_v9__) && !defined(__sparc_v8plus__) 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_arith32; OP_32_64(sub); c = ARITH_SUB; goto gen_arith32; OP_32_64(and); c = ARITH_AND; goto gen_arith32; OP_32_64(or); c = ARITH_OR; goto gen_arith32; OP_32_64(xor); c = ARITH_XOR; goto gen_arith32; case INDEX_op_shl_i32: c = SHIFT_SLL; goto gen_arith32; case INDEX_op_shr_i32: c = SHIFT_SRL; goto gen_arith32; case INDEX_op_sar_i32: c = SHIFT_SRA; goto gen_arith32; case INDEX_op_mul_i32: c = ARITH_UMUL; goto gen_arith32; case INDEX_op_div2_i32: #if defined(__sparc_v9__) || defined(__sparc_v8plus__) c = ARITH_SDIVX; goto gen_arith32; #else tcg_out_sety(s, 0); c = ARITH_SDIV; goto gen_arith32; #endif case INDEX_op_divu2_i32: #if defined(__sparc_v9__) || defined(__sparc_v8plus__) c = ARITH_UDIVX; goto gen_arith32; #else tcg_out_sety(s, 0); c = ARITH_UDIV; goto gen_arith32; #endif case INDEX_op_brcond_i32: tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], args[3]); break; case INDEX_op_qemu_ld8u: tcg_out_qemu_ld(s, args, 0); break; case INDEX_op_qemu_ld8s: tcg_out_qemu_ld(s, args, 0 | 4); break; case INDEX_op_qemu_ld16u: tcg_out_qemu_ld(s, args, 1); break; case INDEX_op_qemu_ld16s: tcg_out_qemu_ld(s, args, 1 | 4); break; case INDEX_op_qemu_ld32u: tcg_out_qemu_ld(s, args, 2); break; case INDEX_op_qemu_ld32s: tcg_out_qemu_ld(s, args, 2 | 4); break; case INDEX_op_qemu_st8: tcg_out_qemu_st(s, args, 0); break; case INDEX_op_qemu_st16: tcg_out_qemu_st(s, args, 1); break; case INDEX_op_qemu_st32: tcg_out_qemu_st(s, args, 2); break; #if defined(__sparc_v9__) && !defined(__sparc_v8plus__) 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; goto gen_arith32; case INDEX_op_shr_i64: c = SHIFT_SRLX; goto gen_arith32; case INDEX_op_sar_i64: c = SHIFT_SRAX; goto gen_arith32; case INDEX_op_mul_i64: c = ARITH_MULX; goto gen_arith32; case INDEX_op_div2_i64: c = ARITH_SDIVX; goto gen_arith32; case INDEX_op_divu2_i64: c = ARITH_UDIVX; goto gen_arith32; case INDEX_op_brcond_i64: tcg_out_brcond(s, args[2], args[0], args[1], const_args[1], args[3]); break; case INDEX_op_qemu_ld64: tcg_out_qemu_ld(s, args, 3); break; case INDEX_op_qemu_st64: tcg_out_qemu_st(s, args, 3); break; #endif gen_arith32: if (const_args[2]) { tcg_out_arithi(s, args[0], args[1], args[2], c); } else { tcg_out_arith(s, args[0], args[1], args[2], 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_jmp, { "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, { "r", "r" } }, { INDEX_op_st16_i32, { "r", "r" } }, { INDEX_op_st_i32, { "r", "r" } }, { INDEX_op_add_i32, { "r", "r", "rJ" } }, { INDEX_op_mul_i32, { "r", "r", "rJ" } }, { INDEX_op_div2_i32, { "r", "r", "0", "1", "r" } }, { INDEX_op_divu2_i32, { "r", "r", "0", "1", "r" } }, { INDEX_op_sub_i32, { "r", "r", "rJ" } }, { INDEX_op_and_i32, { "r", "r", "rJ" } }, { INDEX_op_or_i32, { "r", "r", "rJ" } }, { INDEX_op_xor_i32, { "r", "r", "rJ" } }, { INDEX_op_shl_i32, { "r", "r", "rJ" } }, { INDEX_op_shr_i32, { "r", "r", "rJ" } }, { INDEX_op_sar_i32, { "r", "r", "rJ" } }, { INDEX_op_brcond_i32, { "r", "ri" } }, { INDEX_op_qemu_ld8u, { "r", "L" } }, { INDEX_op_qemu_ld8s, { "r", "L" } }, { INDEX_op_qemu_ld16u, { "r", "L" } }, { INDEX_op_qemu_ld16s, { "r", "L" } }, { INDEX_op_qemu_ld32u, { "r", "L" } }, { INDEX_op_qemu_ld32s, { "r", "L" } }, { INDEX_op_qemu_st8, { "L", "L" } }, { INDEX_op_qemu_st16, { "L", "L" } }, { INDEX_op_qemu_st32, { "L", "L" } }, #if defined(__sparc_v9__) && !defined(__sparc_v8plus__) { 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, { "r", "r" } }, { INDEX_op_st16_i64, { "r", "r" } }, { INDEX_op_st32_i64, { "r", "r" } }, { INDEX_op_st_i64, { "r", "r" } }, { INDEX_op_qemu_ld64, { "L", "L" } }, { INDEX_op_qemu_st64, { "L", "L" } }, { INDEX_op_add_i64, { "r", "r", "rJ" } }, { INDEX_op_mul_i64, { "r", "r", "rJ" } }, { INDEX_op_div2_i64, { "r", "r", "0", "1", "r" } }, { INDEX_op_divu2_i64, { "r", "r", "0", "1", "r" } }, { INDEX_op_sub_i64, { "r", "r", "rJ" } }, { INDEX_op_and_i64, { "r", "r", "rJ" } }, { INDEX_op_or_i64, { "r", "r", "rJ" } }, { INDEX_op_xor_i64, { "r", "r", "rJ" } }, { INDEX_op_shl_i64, { "r", "r", "rJ" } }, { INDEX_op_shr_i64, { "r", "r", "rJ" } }, { INDEX_op_sar_i64, { "r", "r", "rJ" } }, { INDEX_op_brcond_i64, { "r", "ri" } }, #endif { -1 }, }; void tcg_target_init(TCGContext *s) { tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); #if defined(__sparc_v9__) && !defined(__sparc_v8plus__) 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); #if defined(__sparc_v9__) && !defined(__sparc_v8plus__) tcg_regset_set_reg(s->reserved_regs, TCG_REG_I4); // for internal use #endif tcg_regset_set_reg(s->reserved_regs, TCG_REG_I5); // for internal use tcg_regset_set_reg(s->reserved_regs, TCG_REG_I6); tcg_regset_set_reg(s->reserved_regs, TCG_REG_I7); tcg_regset_set_reg(s->reserved_regs, TCG_REG_O6); tcg_regset_set_reg(s->reserved_regs, TCG_REG_O7); tcg_add_target_add_op_defs(sparc_op_defs); }