diff options
| -rw-r--r-- | tcg/s390/tcg-target.c.inc | 69 | ||||
| -rw-r--r-- | tcg/s390/tcg-target.h | 2 |
2 files changed, 31 insertions, 40 deletions
diff --git a/tcg/s390/tcg-target.c.inc b/tcg/s390/tcg-target.c.inc index e4c61fc014..582a8ef941 100644 --- a/tcg/s390/tcg-target.c.inc +++ b/tcg/s390/tcg-target.c.inc @@ -363,36 +363,37 @@ static void * const qemu_st_helpers[16] = { }; #endif -static tcg_insn_unit *tb_ret_addr; +static const tcg_insn_unit *tb_ret_addr; uint64_t s390_facilities; -static bool patch_reloc(tcg_insn_unit *code_ptr, int type, +static bool patch_reloc(tcg_insn_unit *src_rw, int type, intptr_t value, intptr_t addend) { + const tcg_insn_unit *src_rx = tcg_splitwx_to_rx(src_rw); intptr_t pcrel2; uint32_t old; value += addend; - pcrel2 = (tcg_insn_unit *)value - code_ptr; + pcrel2 = (tcg_insn_unit *)value - src_rx; switch (type) { case R_390_PC16DBL: if (pcrel2 == (int16_t)pcrel2) { - tcg_patch16(code_ptr, pcrel2); + tcg_patch16(src_rw, pcrel2); return true; } break; case R_390_PC32DBL: if (pcrel2 == (int32_t)pcrel2) { - tcg_patch32(code_ptr, pcrel2); + tcg_patch32(src_rw, pcrel2); return true; } break; case R_390_20: if (value == sextract64(value, 0, 20)) { - old = *(uint32_t *)code_ptr & 0xf00000ff; + old = *(uint32_t *)src_rw & 0xf00000ff; old |= ((value & 0xfff) << 16) | ((value & 0xff000) >> 4); - tcg_patch32(code_ptr, old); + tcg_patch32(src_rw, old); return true; } break; @@ -730,7 +731,8 @@ static inline bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val, } /* load data from an absolute host address */ -static void tcg_out_ld_abs(TCGContext *s, TCGType type, TCGReg dest, void *abs) +static void tcg_out_ld_abs(TCGContext *s, TCGType type, + TCGReg dest, const void *abs) { intptr_t addr = (intptr_t)abs; @@ -1304,7 +1306,7 @@ static void tgen_extract(TCGContext *s, TCGReg dest, TCGReg src, static void tgen_gotoi(TCGContext *s, int cc, const tcg_insn_unit *dest) { - ptrdiff_t off = dest - s->code_ptr; + ptrdiff_t off = tcg_pcrel_diff(s, dest) >> 1; if (off == (int16_t)off) { tcg_out_insn(s, RI, BRC, cc, off); } else if (off == (int32_t)off) { @@ -1333,34 +1335,18 @@ static void tgen_branch(TCGContext *s, int cc, TCGLabel *l) static void tgen_compare_branch(TCGContext *s, S390Opcode opc, int cc, TCGReg r1, TCGReg r2, TCGLabel *l) { - intptr_t off = 0; - - if (l->has_value) { - off = l->u.value_ptr - s->code_ptr; - tcg_debug_assert(off == (int16_t)off); - } else { - tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2); - } - + tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2); tcg_out16(s, (opc & 0xff00) | (r1 << 4) | r2); - tcg_out16(s, off); + tcg_out16(s, 0); tcg_out16(s, cc << 12 | (opc & 0xff)); } static void tgen_compare_imm_branch(TCGContext *s, S390Opcode opc, int cc, TCGReg r1, int i2, TCGLabel *l) { - tcg_target_long off = 0; - - if (l->has_value) { - off = l->u.value_ptr - s->code_ptr; - tcg_debug_assert(off == (int16_t)off); - } else { - tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2); - } - + tcg_out_reloc(s, s->code_ptr + 1, R_390_PC16DBL, l, 2); tcg_out16(s, (opc & 0xff00) | (r1 << 4) | cc); - tcg_out16(s, off); + tcg_out16(s, 0); tcg_out16(s, (i2 << 8) | (opc & 0xff)); } @@ -1417,7 +1403,7 @@ static void tgen_brcond(TCGContext *s, TCGType type, TCGCond c, static void tcg_out_call(TCGContext *s, const tcg_insn_unit *dest) { - ptrdiff_t off = dest - s->code_ptr; + ptrdiff_t off = tcg_pcrel_diff(s, dest) >> 1; if (off == (int32_t)off) { tcg_out_insn(s, RIL, BRASL, TCG_REG_R14, off); } else { @@ -1601,7 +1587,8 @@ static void add_qemu_ldst_label(TCGContext *s, bool is_ld, TCGMemOpIdx oi, label->oi = oi; label->datalo_reg = data; label->addrlo_reg = addr; - label->raddr = raddr; + /* TODO: Cast goes away when all hosts converted */ + label->raddr = (void *)tcg_splitwx_to_rx(raddr); label->label_ptr[0] = label_ptr; } @@ -1613,7 +1600,7 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) MemOp opc = get_memop(oi); if (!patch_reloc(lb->label_ptr[0], R_390_PC16DBL, - (intptr_t)s->code_ptr, 2)) { + (intptr_t)tcg_splitwx_to_rx(s->code_ptr), 2)) { return false; } @@ -1638,7 +1625,7 @@ static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) MemOp opc = get_memop(oi); if (!patch_reloc(lb->label_ptr[0], R_390_PC16DBL, - (intptr_t)s->code_ptr, 2)) { + (intptr_t)tcg_splitwx_to_rx(s->code_ptr), 2)) { return false; } @@ -1766,7 +1753,8 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_goto_tb: a0 = args[0]; if (s->tb_jmp_insn_offset) { - /* branch displacement must be aligned for atomic patching; + /* + * branch displacement must be aligned for atomic patching; * see if we need to add extra nop before branch */ if (!QEMU_PTR_IS_ALIGNED(s->code_ptr + 1, 4)) { @@ -1779,7 +1767,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, } else { /* load address stored at s->tb_jmp_target_addr + a0 */ tcg_out_ld_abs(s, TCG_TYPE_PTR, TCG_REG_TB, - s->tb_jmp_target_addr + a0); + tcg_splitwx_to_rx(s->tb_jmp_target_addr + a0)); /* and go there */ tcg_out_insn(s, RR, BCR, S390_CC_ALWAYS, TCG_REG_TB); } @@ -1789,8 +1777,10 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, TCG_REG_TB to the beginning of this TB. */ if (USE_REG_TB) { int ofs = -tcg_current_code_size(s); - assert(ofs == (int16_t)ofs); - tcg_out_insn(s, RI, AGHI, TCG_REG_TB, ofs); + /* All TB are restricted to 64KiB by unwind info. */ + tcg_debug_assert(ofs == sextract64(ofs, 0, 20)); + tcg_out_insn(s, RXY, LAY, TCG_REG_TB, + TCG_REG_TB, TCG_REG_NONE, ofs); } break; @@ -2561,11 +2551,12 @@ static void tcg_target_qemu_prologue(TCGContext *s) * Return path for goto_ptr. Set return value to 0, a-la exit_tb, * and fall through to the rest of the epilogue. */ - tcg_code_gen_epilogue = s->code_ptr; + /* TODO: Cast goes away when all hosts converted */ + tcg_code_gen_epilogue = (void *)tcg_splitwx_to_rx(s->code_ptr); tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_R2, 0); /* TB epilogue */ - tb_ret_addr = s->code_ptr; + tb_ret_addr = tcg_splitwx_to_rx(s->code_ptr); /* lmg %r6,%r15,fs+48(%r15) (restore registers) */ tcg_out_insn(s, RXY, LMG, TCG_REG_R6, TCG_REG_R15, TCG_REG_R15, diff --git a/tcg/s390/tcg-target.h b/tcg/s390/tcg-target.h index b8f4296e4b..4edcb06044 100644 --- a/tcg/s390/tcg-target.h +++ b/tcg/s390/tcg-target.h @@ -159,6 +159,6 @@ static inline void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_rx, #define TCG_TARGET_NEED_LDST_LABELS #endif #define TCG_TARGET_NEED_POOL_LABELS -#define TCG_TARGET_SUPPORT_MIRROR 0 +#define TCG_TARGET_SUPPORT_MIRROR 1 #endif |