1 #ifndef __MONO_MINI_ARM_H__
2 #define __MONO_MINI_ARM_H__
4 #include <mono/arch/arm/arm-codegen.h>
8 #define MONO_ARCH_SOFT_FLOAT 1
11 #if G_BYTE_ORDER == G_LITTLE_ENDIAN
12 #define ARM_LSW_REG ARMREG_R0
13 #define ARM_MSW_REG ARMREG_R1
15 #define ARM_LSW_REG ARMREG_R1
16 #define ARM_MSW_REG ARMREG_R0
19 #define MONO_MAX_IREGS 16
20 #define MONO_MAX_FREGS 16
22 #define MONO_SAVED_GREGS 10 /* r4-411, ip, lr */
23 #define MONO_SAVED_FREGS 8
25 /* r4-r11, ip, lr: registers saved in the LMF and MonoContext */
26 #define MONO_ARM_REGSAVE_MASK 0x5ff0
28 /* Parameters used by the register allocator */
29 #define MONO_ARCH_HAS_XP_LOCAL_REGALLOC
31 #define MONO_ARCH_CALLEE_REGS ((1<<ARMREG_R0) | (1<<ARMREG_R1) | (1<<ARMREG_R2) | (1<<ARMREG_R3) | (1<<ARMREG_IP))
32 #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))
34 #define MONO_ARCH_CALLEE_FREGS 0xf
35 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
37 #define MONO_ARCH_USE_FPSTACK FALSE
38 #define MONO_ARCH_FPSTACK_SIZE 0
40 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
42 #ifdef MONO_ARCH_SOFT_FLOAT
43 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l' || (desc == 'f') || (desc == 'g'))? ARM_LSW_REG: -1)
44 #define MONO_ARCH_INST_IS_REGPAIR(desc) ((desc) == 'l' || (desc) == 'L' || (desc) == 'f' || (desc) == 'g')
45 #define MONO_ARCH_INST_IS_FLOAT(desc) (FALSE)
47 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l')? ARM_LSW_REG: -1)
48 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l' || desc == 'L')
49 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
51 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' || (desc == 'f') || (desc == 'g')? ARM_MSW_REG : -1)
53 #define MONO_ARCH_FRAME_ALIGNMENT 8
55 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
56 * reproduceable results for benchmarks */
57 #define MONO_ARCH_CODE_ALIGNMENT 32
59 void arm_patch (guchar
*code
, const guchar
*target
);
60 guint8
* mono_arm_emit_load_imm (guint8
*code
, int dreg
, guint32 val
);
62 /* keep the size of the structure a multiple of 8 */
64 gpointer previous_lmf
;
70 gdouble fregs
[MONO_SAVED_FREGS
]; /* 8..15 */
71 /* all but sp and pc: matches the PUSH instruction layout in the trampolines
72 * 0-4 should be considered undefined (execpt in the magic tramp)
77 /* we define our own structure and we'll copy the data
78 * from sigcontext/ucontext/mach when we need it.
79 * This also makes us save stack space and time when copying
80 * We might also want to add an additional field to propagate
81 * the original context from the signal handler.
87 gulong regs
[MONO_SAVED_GREGS
];
88 double fregs
[MONO_SAVED_FREGS
];
91 typedef struct MonoCompileArch
{
95 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
96 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
97 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
98 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
99 #define MONO_ARCH_EMULATE_FREM 1
100 #define MONO_ARCH_EMULATE_DIV 1
101 #define MONO_ARCH_EMULATE_CONV_R8_UN 1
102 //#define MONO_ARCH_BIGMUL_INTRINS 1
104 #define ARM_FIRST_ARG_REG 0
105 #define ARM_LAST_ARG_REG 3
107 #define MONO_ARCH_USE_SIGACTION 1
108 #define MONO_ARCH_NEED_DIV_CHECK 1
110 #define ARM_NUM_REG_ARGS (ARM_LAST_ARG_REG-ARM_FIRST_ARG_REG+1)
111 #define ARM_NUM_REG_FPARGS 0
113 /* we have the stack pointer, not the base pointer in sigcontext */
114 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (int)ip; } while (0);
115 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (int)bp; } while (0);
116 #define MONO_CONTEXT_SET_SP(ctx,bp) do { (ctx)->esp = (int)bp; } while (0);
118 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
119 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
120 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
122 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
123 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0)); \
124 MONO_CONTEXT_SET_IP ((ctx), (func)); \
127 #endif /* __MONO_MINI_ARM_H__ */