/** * \file * * Copyright 2013 Xamarin Inc * * Based on mini-arm.h: * * Copyright 2011 Xamarin Inc * Licensed under the MIT license. See LICENSE file in the project root for full license information. */ #ifndef __MONO_MINI_ARM64_H__ #define __MONO_MINI_ARM64_H__ #include #include #define MONO_ARCH_CPU_SPEC mono_arm64_cpu_desc #define MONO_MAX_IREGS 32 #define MONO_MAX_FREGS 32 #define MONO_CONTEXT_SET_LLVM_EXC_REG(ctx, exc) do { (ctx)->regs [0] = (gsize)exc; } while (0) #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \ MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \ MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \ MONO_CONTEXT_SET_IP ((ctx), (func)); \ } while (0) #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) /* Parameters used by the register allocator */ /* r0..r7, r9..r14 (r15 is the imt/rgctx reg) */ #define MONO_ARCH_CALLEE_REGS 0xfeff /* r19..r28 */ #define MONO_ARCH_CALLEE_SAVED_REGS (0x3ff << 19) /* v16/v17 is reserved for a scratch reg */ #define MONO_ARCH_CALLEE_FREGS 0xfffc00ff /* v8..v15 */ #define MONO_ARCH_CALLEE_SAVED_FREGS 0xff00 #define MONO_ARCH_USE_FPSTACK FALSE #define MONO_ARCH_FPSTACK_SIZE 0 #define MONO_ARCH_INST_SREG2_MASK(ins) (0) #define MONO_ARCH_INST_FIXED_REG(desc) ((desc) == 'a' ? ARMREG_R0 : -1) #define MONO_ARCH_INST_IS_REGPAIR(desc) (0) #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc) == 'f') #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1) #define MONO_ARCH_USE_FPSTACK FALSE #define MONO_ARCH_FRAME_ALIGNMENT 16 #define MONO_ARCH_CODE_ALIGNMENT 32 /* callee saved regs + fp + sp */ #define MONO_ARCH_LMF_REGS ((0x3ff << 19) | (1 << ARMREG_FP) | (1 << ARMREG_SP)) #define MONO_ARCH_NUM_LMF_REGS (10 + 2) #define MONO_ARCH_FIRST_LMF_REG ARMREG_R19 #define MONO_ARCH_LMF_REG_FP 10 #define MONO_ARCH_LMF_REG_SP 11 struct MonoLMF { /* * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and * the other fields are not valid. */ gpointer previous_lmf; gpointer lmf_addr; mgreg_t pc; mgreg_t gregs [MONO_ARCH_NUM_LMF_REGS]; }; /* Structure used by the sequence points in AOTed code */ typedef struct { gpointer ss_trigger_page; gpointer bp_trigger_page; gpointer ss_tramp_addr; guint8* bp_addrs [MONO_ZERO_LEN_ARRAY]; } SeqPointInfo; #define PARAM_REGS 8 #define FP_PARAM_REGS 8 typedef struct { mgreg_t res, res2; guint8 *ret; double fpregs [FP_PARAM_REGS]; int n_fpargs, n_fpret, n_stackargs; guint8 buffer [256]; /* This should come last as the structure is dynamically extended */ /* The +1 is for r8 */ mgreg_t regs [PARAM_REGS + 1]; } DynCallArgs; typedef struct { gpointer cinfo; int saved_gregs_offset; /* Points to arguments received on the stack */ int args_reg; gboolean cond_branch_islands; gpointer vret_addr_loc; gpointer seq_point_info_var; gpointer ss_tramp_var; gpointer bp_tramp_var; guint8 *thunks; int thunks_size; } MonoCompileArch; #define MONO_ARCH_EMULATE_FREM 1 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS 1 #define MONO_ARCH_EMULATE_LONG_MUL_OVF_OPTS 1 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS 1 #define MONO_ARCH_NEED_DIV_CHECK 1 #define MONO_ARCH_EMULATE_MUL_OVF 1 #define MONO_ARCH_HAVE_IMT 1 #define MONO_ARCH_HAVE_OP_TAIL_CALL 1 #define MONO_ARCH_THIS_AS_FIRST_ARG 1 #define MONO_ARCH_RGCTX_REG ARMREG_R15 #define MONO_ARCH_IMT_REG MONO_ARCH_RGCTX_REG #define MONO_ARCH_VTABLE_REG ARMREG_R0 #define MONO_ARCH_EXC_REG ARMREG_R0 #define MONO_ARCH_HAVE_XP_UNWIND 1 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE 1 #define MONO_ARCH_HAVE_GENERALIZED_IMT_TRAMPOLINE 1 #define MONO_ARCH_USE_SIGACTION 1 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1 #define MONO_ARCH_HAVE_CONTEXT_SET_INT_REG 1 #define MONO_ARCH_GSHARED_SUPPORTED 1 #define MONO_ARCH_AOT_SUPPORTED 1 #define MONO_ARCH_LLVM_SUPPORTED 1 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1 #define MONO_ARCH_HAVE_EXCEPTIONS_INIT 1 #define MONO_ARCH_HAVE_GET_TRAMPOLINES 1 #define MONO_ARCH_DYN_CALL_SUPPORTED 1 #define MONO_ARCH_DYN_CALL_PARAM_AREA 0 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1 #define MONO_ARCH_GSHAREDVT_SUPPORTED 1 #define MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX 1 #define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK 1 #define MONO_ARCH_HAVE_GENERAL_RGCTX_LAZY_FETCH_TRAMPOLINE 1 #define MONO_ARCH_HAVE_OP_GET_EX_OBJ 1 #define MONO_ARCH_HAVE_OBJC_GET_SELECTOR 1 #define MONO_ARCH_HAVE_SDB_TRAMPOLINES 1 #define MONO_ARCH_HAVE_PATCH_CODE_NEW 1 #define MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT 1 #define MONO_ARCH_HAVE_OPCODE_NEEDS_EMULATION 1 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1 #define MONO_ARCH_HAVE_INIT_LMF_EXT 1 #ifdef TARGET_IOS #define MONO_ARCH_REDZONE_SIZE 128 #else #define MONO_ARCH_REDZONE_SIZE 0 #endif #if defined(TARGET_APPLETVOS) || defined(TARGET_IOS) #define MONO_ARCH_HAVE_UNWIND_BACKTRACE 1 #endif /* Relocations */ #define MONO_R_ARM64_B 1 #define MONO_R_ARM64_BCC 2 #define MONO_R_ARM64_IMM 3 #define MONO_R_ARM64_BL 4 #define MONO_R_ARM64_BL_SHORT 5 #define MONO_R_ARM64_CBZ 6 typedef enum { ArgInIReg, ArgInFReg, ArgInFRegR4, ArgOnStack, ArgOnStackR8, ArgOnStackR4, /* * Vtype passed in consecutive int registers. * ainfo->reg is the firs register, * ainfo->nregs is the number of registers, * ainfo->size is the size of the structure. */ ArgVtypeInIRegs, ArgVtypeByRef, ArgVtypeByRefOnStack, ArgVtypeOnStack, ArgHFA, ArgNone } ArgStorage; typedef struct { ArgStorage storage; int reg; /* ArgOnStack */ int offset; /* ArgVtypeInIRegs/ArgHFA */ int nregs, size; /* ArgHFA */ int esize; /* ArgHFA */ /* The offsets of the float values inside the arg */ guint16 foffsets [4]; /* ArgOnStack */ int slot_size; /* hfa */ int nfregs_to_skip; gboolean sign; gboolean gsharedvt; gboolean hfa; } ArgInfo; typedef struct { int nargs; int gr, fr, stack_usage; gboolean pinvoke; ArgInfo ret; ArgInfo sig_cookie; ArgInfo args [1]; } CallInfo; guint8* mono_arm_emit_imm64 (guint8 *code, int dreg, gint64 imm); guint8* mono_arm_emit_ldrx (guint8 *code, int rt, int rn, int imm); guint8* mono_arm_emit_destroy_frame (guint8 *code, int stack_offset, guint64 temp_regs); guint8* mono_arm_emit_store_regset (guint8 *code, guint64 regs, int basereg, int offset); guint8* mono_arm_emit_store_regarray (guint8 *code, guint64 regs, int basereg, int offset); guint8* mono_arm_emit_load_regarray (guint8 *code, guint64 regs, int basereg, int offset); /* MonoJumpInfo **ji */ guint8* mono_arm_emit_aotconst (gpointer ji, guint8 *code, guint8 *code_start, int dreg, guint32 patch_type, gconstpointer data); void mono_arm_patch (guint8 *code, guint8 *target, int relocation); void mono_arm_throw_exception (gpointer arg, mgreg_t pc, mgreg_t *int_regs, gdouble *fp_regs, gboolean corlib, gboolean rethrow); void mono_arm_gsharedvt_init (void); GSList* mono_arm_get_exception_trampolines (gboolean aot); void mono_arm_resume_unwind (gpointer arg, mgreg_t pc, mgreg_t *int_regs, gdouble *fp_regs, gboolean corlib, gboolean rethrow); CallInfo* mono_arch_get_call_info (MonoMemPool *mp, MonoMethodSignature *sig); #endif /* __MONO_MINI_ARM64_H__ */