1 #ifndef __MONO_MINI_ARM_H__
2 #define __MONO_MINI_ARM_H__
4 #include <mono/arch/arm/arm-codegen.h>
5 #include <mono/utils/mono-context.h>
8 #if defined(ARM_FPU_NONE) || (defined(__ARM_EABI__) && !defined(ARM_FPU_VFP) && !defined(ARM_FPU_VFP_HARD))
9 #define MONO_ARCH_SOFT_FLOAT 1
12 #if defined(__ARM_EABI__)
13 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
14 #define ARM_ARCHITECTURE "armel"
16 #define ARM_ARCHITECTURE "armeb"
19 #define ARM_ARCHITECTURE "arm"
22 #if defined(ARM_FPU_FPA)
23 #define ARM_FP_MODEL "fpa"
24 #elif defined(ARM_FPU_VFP)
25 #define ARM_FP_MODEL "vfp"
26 #elif defined(ARM_FPU_NONE)
27 #define ARM_FP_MODEL "soft-float"
28 #elif defined(ARM_FPU_VFP_HARD)
29 #define ARM_FP_MODEL "vfp(hardfp-abi)"
31 #error "At least one of ARM_FPU_NONE, ARM_FPU_FPA, ARM_FPU_VFP or ARM_FPU_VFP_HARD must be defined."
34 #define MONO_ARCH_ARCHITECTURE ARM_ARCHITECTURE "," ARM_FP_MODEL
36 #define MONO_ARCH_CPU_SPEC arm_cpu_desc
38 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
39 #define ARM_LSW_REG ARMREG_R0
40 #define ARM_MSW_REG ARMREG_R1
42 #define ARM_LSW_REG ARMREG_R1
43 #define ARM_MSW_REG ARMREG_R0
46 #define MONO_MAX_IREGS 16
47 #define MONO_MAX_FREGS 16
49 #define MONO_SAVED_GREGS 10 /* r4-r11, ip, lr */
50 #define MONO_SAVED_FREGS 8
52 /* r4-r11, ip, lr: registers saved in the LMF */
53 #define MONO_ARM_REGSAVE_MASK 0x5ff0
54 #define MONO_ARM_FIRST_SAVED_REG ARMREG_R4
55 #define MONO_ARM_NUM_SAVED_REGS 10
57 /* Parameters used by the register allocator */
59 #define MONO_ARCH_CALLEE_REGS ((1<<ARMREG_R0) | (1<<ARMREG_R1) | (1<<ARMREG_R2) | (1<<ARMREG_R3) | (1<<ARMREG_IP))
60 #define MONO_ARCH_CALLEE_SAVED_REGS ((1<<ARMREG_V1) | (1<<ARMREG_V2) | (1<<ARMREG_V3) | (1<<ARMREG_V4) | (1<<ARMREG_V5) | (1<<ARMREG_V6) | (1<<ARMREG_V7))
62 #if defined(ARM_FPU_VFP) || defined(ARM_FPU_VFP_HARD)
63 /* Every double precision vfp register, d0/d1 is reserved for a scratch reg */
64 #define MONO_ARCH_CALLEE_FREGS 0x55555550
66 #define MONO_ARCH_CALLEE_FREGS 0xf
68 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
70 #define MONO_ARCH_USE_FPSTACK FALSE
71 #define MONO_ARCH_FPSTACK_SIZE 0
73 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
75 #ifdef MONO_ARCH_SOFT_FLOAT
76 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l' || (desc == 'f') || (desc == 'g')) ? ARM_LSW_REG: (((desc) == 'a') ? ARMREG_R0 : -1))
77 #define MONO_ARCH_INST_IS_REGPAIR(desc) ((desc) == 'l' || (desc) == 'L' || (desc) == 'f' || (desc) == 'g')
78 #define MONO_ARCH_INST_IS_FLOAT(desc) (FALSE)
80 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l')? ARM_LSW_REG: (((desc) == 'a') ? ARMREG_R0 : -1))
81 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
82 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
84 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' || (desc == 'f') || (desc == 'g')? ARM_MSW_REG : -1)
86 #define MONO_ARCH_FRAME_ALIGNMENT 8
88 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
89 * reproduceable results for benchmarks */
90 #define MONO_ARCH_CODE_ALIGNMENT 32
92 void arm_patch (guchar *code, const guchar *target);
93 guint8* mono_arm_emit_load_imm (guint8 *code, int dreg, guint32 val);
94 int mono_arm_is_rotated_imm8 (guint32 val, gint *rot_amount);
97 mono_arm_throw_exception_by_token (guint32 type_token, mgreg_t pc, mgreg_t sp, mgreg_t *int_regs, gdouble *fp_regs);
100 MONO_ARM_FPU_NONE = 0,
101 MONO_ARM_FPU_FPA = 1,
102 MONO_ARM_FPU_VFP = 2,
103 MONO_ARM_FPU_VFP_HARD = 3
106 /* keep the size of the structure a multiple of 8 */
109 * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
110 * the other fields are not valid.
112 gpointer previous_lmf;
114 /* This is only set in trampoline LMF frames */
119 /* all but sp and pc: matches the PUSH instruction layout in the trampolines
120 * 0-4 should be considered undefined (execpt in the magic tramp)
126 typedef struct MonoCompileArch {
127 gpointer seq_point_info_var, ss_trigger_page_var;
128 gpointer seq_point_read_var, seq_point_ss_method_var;
129 gpointer seq_point_bp_method_var;
130 gboolean omit_fp, omit_fp_computed;
132 gpointer vret_addr_loc;
135 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
136 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
137 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
138 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
139 #define MONO_ARCH_EMULATE_FREM 1
140 #define MONO_ARCH_EMULATE_DIV 1
141 #define MONO_ARCH_EMULATE_CONV_R8_UN 1
142 #define MONO_ARCH_EMULATE_MUL_OVF 1
143 //#define MONO_ARCH_BIGMUL_INTRINS 1
145 #define ARM_FIRST_ARG_REG 0
146 #define ARM_LAST_ARG_REG 3
148 #define MONO_ARCH_USE_SIGACTION 1
149 #define MONO_ARCH_NEED_DIV_CHECK 1
151 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
152 #define MONO_ARCH_HAVE_XP_UNWIND 1
153 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
155 #define ARM_NUM_REG_ARGS (ARM_LAST_ARG_REG-ARM_FIRST_ARG_REG+1)
156 #define ARM_NUM_REG_FPARGS 0
158 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
159 #define MONO_ARCH_HAVE_IMT 1
160 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
161 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
163 #define MONO_ARCH_AOT_SUPPORTED 1
164 #define MONO_ARCH_LLVM_SUPPORTED 1
165 #define MONO_ARCH_THIS_AS_FIRST_ARG 1
167 #define MONO_ARCH_GSHARED_SUPPORTED 1
168 #define MONO_ARCH_DYN_CALL_SUPPORTED 1
169 #define MONO_ARCH_DYN_CALL_PARAM_AREA 24
171 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
172 #define MONO_ARCH_HAVE_EXCEPTIONS_INIT 1
173 #define MONO_ARCH_HAVE_GET_TRAMPOLINES 1
174 #define MONO_ARCH_HAVE_CONTEXT_SET_INT_REG 1
175 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX 1
176 #define MONO_ARCH_GC_MAPS_SUPPORTED 1
177 #define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK 1
178 #define MONO_ARCH_HAVE_CONTEXT_SET_INT_REG 1
180 /* Matches the HAVE_AEABI_READ_TP define in mini-arm.c */
181 #if defined(__ARM_EABI__) && defined(__linux__) && !defined(TARGET_ANDROID)
182 #define MONO_ARCH_HAVE_TLS_GET 1
185 /* ARM doesn't have too many registers, so we have to use a callee saved one */
186 #define MONO_ARCH_RGCTX_REG ARMREG_V5
187 /* First argument reg */
188 #define MONO_ARCH_VTABLE_REG ARMREG_R0
190 #define MONO_CONTEXT_SET_LLVM_EXC_REG(ctx, exc) do { (ctx)->regs [0] = (gsize)exc; } while (0)
192 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
193 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
194 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \
195 MONO_CONTEXT_SET_IP ((ctx), (func)); \
198 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf)
201 mono_arm_throw_exception (MonoObject *exc, mgreg_t pc, mgreg_t sp, mgreg_t *int_regs, gdouble *fp_regs);
204 mono_arm_throw_exception_by_token (guint32 type_token, mgreg_t pc, mgreg_t sp, mgreg_t *int_regs, gdouble *fp_regs);
207 mono_arm_resume_unwind (guint32 dummy1, mgreg_t pc, mgreg_t sp, mgreg_t *int_regs, gdouble *fp_regs);
210 mono_arm_thumb_supported (void);
213 mono_arm_hardfp_abi_supported (void);
216 mono_arm_get_exception_trampolines (gboolean aot) MONO_INTERNAL;
219 mono_arm_get_thumb_plt_entry (guint8 *code) MONO_INTERNAL;
221 #endif /* __MONO_MINI_ARM_H__ */