diff options
author | Richard Henderson <rth@twiddle.net> | 2014-04-25 10:18:59 -0400 |
---|---|---|
committer | Richard Henderson <rth@twiddle.net> | 2014-05-12 10:06:58 -0700 |
commit | 8c081b18025407fd5fa7c0d25a69398594ea5b2c (patch) | |
tree | 00952bf816ed13ca936dab9c76564739ae31de73 /tcg/s390 | |
parent | 8587c30c3e3807728d12966667bc6055b772f1ac (diff) |
tcg-s390: Define TCG_TARGET_INSN_UNIT_SIZE
And use tcg pointer differencing functions as appropriate.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/s390')
-rw-r--r-- | tcg/s390/tcg-target.c | 91 | ||||
-rw-r--r-- | tcg/s390/tcg-target.h | 2 |
2 files changed, 45 insertions, 48 deletions
diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c index 1d912a7937..ae1be1cb13 100644 --- a/tcg/s390/tcg-target.c +++ b/tcg/s390/tcg-target.c @@ -320,7 +320,7 @@ static const uint8_t tcg_cond_to_ltr_cond[] = { #ifdef CONFIG_SOFTMMU /* helper signature: helper_ld_mmu(CPUState *env, target_ulong addr, int mmu_idx) */ -static const void * const qemu_ld_helpers[4] = { +static void * const qemu_ld_helpers[4] = { helper_ldb_mmu, helper_ldw_mmu, helper_ldl_mmu, @@ -329,7 +329,7 @@ static const void * const qemu_ld_helpers[4] = { /* helper signature: helper_st_mmu(CPUState *env, target_ulong addr, uintxx_t val, int mmu_idx) */ -static const void * const qemu_st_helpers[4] = { +static void * const qemu_st_helpers[4] = { helper_stb_mmu, helper_stw_mmu, helper_stl_mmu, @@ -337,7 +337,7 @@ static const void * const qemu_st_helpers[4] = { }; #endif -static uint8_t *tb_ret_addr; +static tcg_insn_unit *tb_ret_addr; /* A list of relevant facilities used by this translator. Some of these are required for proper operation, and these are checked at startup. */ @@ -350,23 +350,20 @@ static uint8_t *tb_ret_addr; static uint64_t facilities; -static void patch_reloc(uint8_t *code_ptr, int type, +static void patch_reloc(tcg_insn_unit *code_ptr, int type, intptr_t value, intptr_t addend) { - intptr_t code_ptr_tl = (intptr_t)code_ptr; - intptr_t pcrel2; - - /* ??? Not the usual definition of "addend". */ - pcrel2 = (value - (code_ptr_tl + addend)) >> 1; + intptr_t pcrel2 = (tcg_insn_unit *)value - (code_ptr - 1); + assert(addend == -2); switch (type) { case R_390_PC16DBL: assert(pcrel2 == (int16_t)pcrel2); - *(int16_t *)code_ptr = pcrel2; + tcg_patch16(code_ptr, pcrel2); break; case R_390_PC32DBL: assert(pcrel2 == (int32_t)pcrel2); - *(int32_t *)code_ptr = pcrel2; + tcg_patch32(code_ptr, pcrel2); break; default: tcg_abort(); @@ -672,7 +669,7 @@ static void tcg_out_movi(TCGContext *s, TCGType type, /* Try for PC-relative address load. */ if ((sval & 1) == 0) { - intptr_t off = (sval - (intptr_t)s->code_ptr) >> 1; + ptrdiff_t off = tcg_pcrel_diff(s, (void *)sval) >> 1; if (off == (int32_t)off) { tcg_out_insn(s, RIL, LARL, ret, off); return; @@ -789,10 +786,10 @@ static inline void tcg_out_st(TCGContext *s, TCGType type, TCGReg data, /* load data from an absolute host address */ static void tcg_out_ld_abs(TCGContext *s, TCGType type, TCGReg dest, void *abs) { - tcg_target_long addr = (tcg_target_long)abs; + intptr_t addr = (intptr_t)abs; - if (facilities & FACILITY_GEN_INST_EXT) { - tcg_target_long disp = (addr - (tcg_target_long)s->code_ptr) >> 1; + if ((facilities & FACILITY_GEN_INST_EXT) && !(addr & 1)) { + ptrdiff_t disp = tcg_pcrel_diff(s, abs) >> 1; if (disp == (int32_t)disp) { if (type == TCG_TYPE_I32) { tcg_out_insn(s, RIL, LRL, dest, disp); @@ -1154,15 +1151,15 @@ static void tgen_deposit(TCGContext *s, TCGReg dest, TCGReg src, tcg_out_risbg(s, dest, src, msb, lsb, ofs, 0); } -static void tgen_gotoi(TCGContext *s, int cc, tcg_target_long dest) +static void tgen_gotoi(TCGContext *s, int cc, tcg_insn_unit *dest) { - tcg_target_long off = (dest - (tcg_target_long)s->code_ptr) >> 1; - if (off > -0x8000 && off < 0x7fff) { + ptrdiff_t off = dest - s->code_ptr; + if (off == (int16_t)off) { tcg_out_insn(s, RI, BRC, cc, off); } else if (off == (int32_t)off) { tcg_out_insn(s, RIL, BRCL, cc, off); } else { - tcg_out_movi(s, TCG_TYPE_PTR, TCG_TMP0, dest); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_TMP0, (uintptr_t)dest); tcg_out_insn(s, RR, BCR, cc, TCG_TMP0); } } @@ -1171,15 +1168,15 @@ static void tgen_branch(TCGContext *s, int cc, int labelno) { TCGLabel* l = &s->labels[labelno]; if (l->has_value) { - tgen_gotoi(s, cc, l->u.value); + tgen_gotoi(s, cc, l->u.value_ptr); } else if (USE_LONG_BRANCHES) { tcg_out16(s, RIL_BRCL | (cc << 4)); tcg_out_reloc(s, s->code_ptr, R_390_PC32DBL, labelno, -2); - s->code_ptr += 4; + s->code_ptr += 2; } else { tcg_out16(s, RI_BRC | (cc << 4)); tcg_out_reloc(s, s->code_ptr, R_390_PC16DBL, labelno, -2); - s->code_ptr += 2; + s->code_ptr += 1; } } @@ -1187,14 +1184,14 @@ static void tgen_compare_branch(TCGContext *s, S390Opcode opc, int cc, TCGReg r1, TCGReg r2, int labelno) { TCGLabel* l = &s->labels[labelno]; - tcg_target_long off; + intptr_t off; if (l->has_value) { - off = (l->u.value - (tcg_target_long)s->code_ptr) >> 1; + off = l->u.value_ptr - s->code_ptr; } else { /* We need to keep the offset unchanged for retranslation. */ - off = ((int16_t *)s->code_ptr)[1]; - tcg_out_reloc(s, s->code_ptr + 2, R_390_PC16DBL, labelno, -2); + off = s->code_ptr[1]; + tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, labelno, -2); } tcg_out16(s, (opc & 0xff00) | (r1 << 4) | r2); @@ -1209,11 +1206,11 @@ static void tgen_compare_imm_branch(TCGContext *s, S390Opcode opc, int cc, tcg_target_long off; if (l->has_value) { - off = (l->u.value - (tcg_target_long)s->code_ptr) >> 1; + off = l->u.value_ptr - s->code_ptr; } else { /* We need to keep the offset unchanged for retranslation. */ - off = ((int16_t *)s->code_ptr)[1]; - tcg_out_reloc(s, s->code_ptr + 2, R_390_PC16DBL, labelno, -2); + off = s->code_ptr[1]; + tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, labelno, -2); } tcg_out16(s, (opc & 0xff00) | (r1 << 4) | cc); @@ -1272,13 +1269,13 @@ static void tgen_brcond(TCGContext *s, TCGType type, TCGCond c, tgen_branch(s, cc, labelno); } -static void tgen_calli(TCGContext *s, tcg_target_long dest) +static void tgen_calli(TCGContext *s, tcg_insn_unit *dest) { - tcg_target_long off = (dest - (tcg_target_long)s->code_ptr) >> 1; + ptrdiff_t off = dest - s->code_ptr; if (off == (int32_t)off) { tcg_out_insn(s, RIL, BRASL, TCG_REG_R14, off); } else { - tcg_out_movi(s, TCG_TYPE_PTR, TCG_TMP0, dest); + tcg_out_movi(s, TCG_TYPE_PTR, TCG_TMP0, (uintptr_t)dest); tcg_out_insn(s, RR, BASR, TCG_REG_R14, TCG_TMP0); } } @@ -1395,14 +1392,14 @@ static void tcg_out_qemu_st_direct(TCGContext *s, int opc, TCGReg data, #if defined(CONFIG_SOFTMMU) static TCGReg tcg_prepare_qemu_ldst(TCGContext* s, TCGReg data_reg, TCGReg addr_reg, int mem_index, int opc, - uint16_t **label2_ptr_p, int is_store) + tcg_insn_unit **label2_ptr_p, int is_store) { const TCGReg arg0 = tcg_target_call_iarg_regs[0]; const TCGReg arg1 = tcg_target_call_iarg_regs[1]; const TCGReg arg2 = tcg_target_call_iarg_regs[2]; const TCGReg arg3 = tcg_target_call_iarg_regs[3]; int s_bits = opc & 3; - uint16_t *label1_ptr; + tcg_insn_unit *label1_ptr; tcg_target_long ofs; if (TARGET_LONG_BITS == 32) { @@ -1436,7 +1433,7 @@ static TCGReg tcg_prepare_qemu_ldst(TCGContext* s, TCGReg data_reg, tcg_out_mov(s, TCG_TYPE_I64, arg1, addr_reg); } - label1_ptr = (uint16_t*)s->code_ptr; + label1_ptr = s->code_ptr; /* je label1 (offset will be patched in later) */ tcg_out_insn(s, RI, BRC, S390_CC_EQ, 0); @@ -1463,11 +1460,11 @@ static TCGReg tcg_prepare_qemu_ldst(TCGContext* s, TCGReg data_reg, } tcg_out_movi(s, TCG_TYPE_I32, arg3, mem_index); tcg_out_mov(s, TCG_TYPE_I64, arg0, TCG_AREG0); - tgen_calli(s, (tcg_target_ulong)qemu_st_helpers[s_bits]); + tgen_calli(s, qemu_st_helpers[s_bits]); } else { tcg_out_movi(s, TCG_TYPE_I32, arg2, mem_index); tcg_out_mov(s, TCG_TYPE_I64, arg0, TCG_AREG0); - tgen_calli(s, (tcg_target_ulong)qemu_ld_helpers[s_bits]); + tgen_calli(s, qemu_ld_helpers[s_bits]); /* sign extension */ switch (opc) { @@ -1488,13 +1485,12 @@ static TCGReg tcg_prepare_qemu_ldst(TCGContext* s, TCGReg data_reg, } /* jump to label2 (end) */ - *label2_ptr_p = (uint16_t*)s->code_ptr; + *label2_ptr_p = s->code_ptr; tcg_out_insn(s, RI, BRC, S390_CC_ALWAYS, 0); /* this is label1, patch branch */ - *(label1_ptr + 1) = ((unsigned long)s->code_ptr - - (unsigned long)label1_ptr) >> 1; + label1_ptr[1] = s->code_ptr - label1_ptr; ofs = offsetof(CPUArchState, tlb_table[mem_index][0].addend); assert(ofs < 0x80000); @@ -1504,11 +1500,10 @@ static TCGReg tcg_prepare_qemu_ldst(TCGContext* s, TCGReg data_reg, return arg1; } -static void tcg_finish_qemu_ldst(TCGContext* s, uint16_t *label2_ptr) +static void tcg_finish_qemu_ldst(TCGContext* s, tcg_insn_unit *label2_ptr) { /* patch branch */ - *(label2_ptr + 1) = ((unsigned long)s->code_ptr - - (unsigned long)label2_ptr) >> 1; + label2_ptr[1] = s->code_ptr - label2_ptr; } #else static void tcg_prepare_user_ldst(TCGContext *s, TCGReg *addr_reg, @@ -1535,7 +1530,7 @@ static void tcg_out_qemu_ld(TCGContext* s, const TCGArg* args, int opc) TCGReg addr_reg, data_reg; #if defined(CONFIG_SOFTMMU) int mem_index; - uint16_t *label2_ptr; + tcg_insn_unit *label2_ptr; #else TCGReg index_reg; tcg_target_long disp; @@ -1564,7 +1559,7 @@ static void tcg_out_qemu_st(TCGContext* s, const TCGArg* args, int opc) TCGReg addr_reg, data_reg; #if defined(CONFIG_SOFTMMU) int mem_index; - uint16_t *label2_ptr; + tcg_insn_unit *label2_ptr; #else TCGReg index_reg; tcg_target_long disp; @@ -1602,7 +1597,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_exit_tb: /* return value */ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, args[0]); - tgen_gotoi(s, S390_CC_ALWAYS, (unsigned long)tb_ret_addr); + tgen_gotoi(s, S390_CC_ALWAYS, tb_ret_addr); break; case INDEX_op_goto_tb: @@ -1614,12 +1609,12 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, /* and go there */ tcg_out_insn(s, RR, BCR, S390_CC_ALWAYS, TCG_TMP0); } - s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf; + s->tb_next_offset[args[0]] = tcg_current_code_size(s); break; case INDEX_op_call: if (const_args[0]) { - tgen_calli(s, args[0]); + tgen_calli(s, (tcg_insn_unit *)(intptr_t)args[0]); } else { tcg_out_insn(s, RR, BASR, TCG_REG_R14, args[0]); } diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h index 755c00237e..5bf733eb3d 100644 --- a/tcg/s390/tcg-target.h +++ b/tcg/s390/tcg-target.h @@ -24,6 +24,8 @@ #ifndef TCG_TARGET_S390 #define TCG_TARGET_S390 1 +#define TCG_TARGET_INSN_UNIT_SIZE 2 + typedef enum TCGReg { TCG_REG_R0 = 0, TCG_REG_R1, |