1 #ifndef __MONO_MINI_ARM_H__
2 #define __MONO_MINI_ARM_H__
4 #include <mono/arch/arm/arm-codegen.h>
7 #if defined(ARM_FPU_NONE) || defined(ARM_FPU_VFP) || defined(__ARM_EABI__)
8 #define MONO_ARCH_SOFT_FLOAT 1
11 #define MONO_ARCH_CPU_SPEC arm_cpu_desc
13 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
14 #define ARM_LSW_REG ARMREG_R0
15 #define ARM_MSW_REG ARMREG_R1
17 #define ARM_LSW_REG ARMREG_R1
18 #define ARM_MSW_REG ARMREG_R0
21 #define MONO_MAX_IREGS 16
22 #define MONO_MAX_FREGS 16
24 #define MONO_SAVED_GREGS 10 /* r4-411, ip, lr */
25 #define MONO_SAVED_FREGS 8
27 /* r4-r11, ip, lr: registers saved in the LMF and MonoContext */
28 #define MONO_ARM_REGSAVE_MASK 0x5ff0
30 /* Parameters used by the register allocator */
32 #define MONO_ARCH_CALLEE_REGS ((1<<ARMREG_R0) | (1<<ARMREG_R1) | (1<<ARMREG_R2) | (1<<ARMREG_R3) | (1<<ARMREG_IP))
33 #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))
35 #define MONO_ARCH_CALLEE_FREGS 0xf
36 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
38 #define MONO_ARCH_USE_FPSTACK FALSE
39 #define MONO_ARCH_FPSTACK_SIZE 0
41 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
43 #ifdef MONO_ARCH_SOFT_FLOAT
44 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l' || (desc == 'f') || (desc == 'g')) ? ARM_LSW_REG: (((desc) == 'a') ? ARMREG_R0 : -1))
45 #define MONO_ARCH_INST_IS_REGPAIR(desc) ((desc) == 'l' || (desc) == 'L' || (desc) == 'f' || (desc) == 'g')
46 #define MONO_ARCH_INST_IS_FLOAT(desc) (FALSE)
48 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l')? ARM_LSW_REG: (((desc) == 'a') ? ARMREG_R0 : -1))
49 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
50 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
52 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' || (desc == 'f') || (desc == 'g')? ARM_MSW_REG : -1)
54 #define MONO_ARCH_FRAME_ALIGNMENT 8
56 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
57 * reproduceable results for benchmarks */
58 #define MONO_ARCH_CODE_ALIGNMENT 32
60 void arm_patch (guchar *code, const guchar *target);
61 guint8* mono_arm_emit_load_imm (guint8 *code, int dreg, guint32 val);
63 /* keep the size of the structure a multiple of 8 */
65 gpointer previous_lmf;
71 gdouble fregs [MONO_SAVED_FREGS]; /* 8..15 */
72 /* all but sp and pc: matches the PUSH instruction layout in the trampolines
73 * 0-4 should be considered undefined (execpt in the magic tramp)
78 /* we define our own structure and we'll copy the data
79 * from sigcontext/ucontext/mach when we need it.
80 * This also makes us save stack space and time when copying
81 * We might also want to add an additional field to propagate
82 * the original context from the signal handler.
88 gulong regs [MONO_SAVED_GREGS];
89 double fregs [MONO_SAVED_FREGS];
92 typedef struct MonoCompileArch {
96 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
97 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
98 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
99 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
100 #define MONO_ARCH_EMULATE_FREM 1
101 #define MONO_ARCH_EMULATE_DIV 1
102 #define MONO_ARCH_EMULATE_CONV_R8_UN 1
103 //#define MONO_ARCH_BIGMUL_INTRINS 1
105 #define ARM_FIRST_ARG_REG 0
106 #define ARM_LAST_ARG_REG 3
108 #define MONO_ARCH_USE_SIGACTION 1
109 #define MONO_ARCH_NEED_DIV_CHECK 1
111 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
112 #define MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
113 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
114 #define MONO_ARCH_COMMON_VTABLE_TRAMPOLINE 1
116 #define MONO_ARCH_ENABLE_NORMALIZE_OPCODES 1
118 #define ARM_NUM_REG_ARGS (ARM_LAST_ARG_REG-ARM_FIRST_ARG_REG+1)
119 #define ARM_NUM_REG_FPARGS 0
121 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
122 #define MONO_ARCH_HAVE_IMT 1
124 #define MONO_ARCH_AOT_SUPPORTED 1
126 /* we have the stack pointer, not the base pointer in sigcontext */
127 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (int)ip; } while (0);
128 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (int)bp; } while (0);
129 #define MONO_CONTEXT_SET_SP(ctx,bp) do { (ctx)->esp = (int)bp; } while (0);
131 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
132 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
133 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
135 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
136 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
137 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0)); \
138 MONO_CONTEXT_SET_IP ((ctx), (func)); \
142 #define UCONTEXT_REG_PC(ctx) ((ctx)->uc_mcontext->__ss.__pc)
143 #define UCONTEXT_REG_SP(ctx) ((ctx)->uc_mcontext->__ss.__sp)
144 #define UCONTEXT_REG_R4(ctx) ((ctx)->uc_mcontext->__ss.__r[4])
146 #define UCONTEXT_REG_PC(ctx) ((ctx)->sig_ctx.arm_pc)
147 #define UCONTEXT_REG_SP(ctx) ((ctx)->sig_ctx.arm_sp)
148 #define UCONTEXT_REG_R4(ctx) ((ctx)->sig_ctx.arm_r4)
151 #endif /* __MONO_MINI_ARM_H__ */