1 #ifndef __MONO_MINI_S390_H__
2 #define __MONO_MINI_S390_H__
4 #include <mono/arch/s390/s390-codegen.h>
7 #define MONO_ARCH_CPU_SPEC s390_cpu_desc
9 #define MONO_MAX_IREGS 16
10 #define MONO_MAX_FREGS 16
12 /*-------------------------------------------*/
13 /* Parameters used by the register allocator */
14 /*-------------------------------------------*/
17 gpointer previous_lmf
;
27 typedef struct ucontext MonoContext
;
29 typedef struct MonoCompileArch
{
48 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
49 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
50 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
51 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
52 #define MONO_ARCH_EMULATE_LMUL 1
53 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
54 #define MONO_ARCH_NEED_DIV_CHECK 1
55 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
56 #define MONO_ARCH_HAVE_ATOMIC_EXCHANGE 1
57 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
58 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
59 // #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
60 // #define MONO_ARCH_SIGNAL_STACK_SIZE 65536
61 // #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
62 #define MONO_ARCH_HAVE_THROW_EXCEPTION_BY_NAME 1
64 #define MONO_ARCH_USE_SIGACTION 1
66 #define S390_STACK_ALIGNMENT 8
67 #define S390_FIRST_ARG_REG s390_r2
68 #define S390_LAST_ARG_REG s390_r6
69 #define S390_FIRST_FPARG_REG s390_f0
70 #define S390_LAST_FPARG_REG s390_f2
71 #define S390_PASS_STRUCTS_BY_VALUE 1
72 #define S390_SMALL_RET_STRUCT_IN_REG 1
74 #define S390_NUM_REG_ARGS (S390_LAST_ARG_REG-S390_FIRST_ARG_REG+1)
75 #define S390_NUM_REG_FPARGS (S390_LAST_FPARG_REG-S390_FIRST_FPARG_REG)
77 /*===============================================*/
78 /* Definitions used by mini-codegen.c */
79 /*===============================================*/
81 /*-----------------------------------------------------*/
82 /* use s390_r2-s390_r6 as parm registers */
83 /* s390_r0, s390_r1, s390_r12, s390_r13 used internally*/
84 /* s390_r8..s390_r11 are used for global regalloc */
85 /* s390_r15 is the stack pointer */
86 /*-----------------------------------------------------*/
87 #define MONO_ARCH_CALLEE_REGS (0xfc)
89 #define MONO_ARCH_CALLEE_SAVED_REGS 0xff80
91 /*----------------------------------------*/
92 /* use s390_f1/s390_f3-s390_f15 as temps */
93 /*----------------------------------------*/
95 #define MONO_ARCH_CALLEE_FREGS (0xfffe)
97 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
99 #define MONO_ARCH_USE_FPSTACK FALSE
100 #define MONO_ARCH_FPSTACK_SIZE 0
102 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? s390_r2 : \
103 ((desc == 'L') ? s390_r3 : \
104 ((desc == 'g') ? s390_f0 : - 1)))
106 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
108 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
110 #define MONO_ARCH_INST_IS_REGPAIR(desc) ((desc == 'l') || (desc == 'L'))
111 //#define MONO_ARCH_INST_IS_REGPAIR(desc) (0)
112 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hr) ((desc == 'l') ? (hr + 1) : \
113 ((desc == 'L') ? s390_r2 : -1))
115 #define MONO_ARCH_IS_GLOBAL_IREG(reg) 0
117 #define MONO_ARCH_FRAME_ALIGNMENT 4
118 #define MONO_ARCH_CODE_ALIGNMENT 32
120 #define MONO_ARCH_RETREG1 s390_r2
122 /*-----------------------------------------------*/
123 /* Macros used to generate instructions */
124 /*-----------------------------------------------*/
125 #define S390_OFFSET(b, t) (guchar *) ((gint32) (b) - (gint32) (t))
126 #define S390_RELATIVE(b, t) (guchar *) ((((gint32) (b) - (gint32) (t))) / 2)
128 #define CODEPTR(c, o) (o) = (short *) ((guint32) c - 2)
129 #define PTRSLOT(c, o) *(o) = (short) ((guint32) c - (guint32) (o) + 2)/2
132 #define S390_ALIGN(v, a) (((a) > 0 ? (((v) + ((a) - 1)) & ~((a) - 1)) : (v)))
134 #define MONO_CONTEXT_SET_IP(ctx,ip) \
136 (ctx)->uc_mcontext.gregs[14] = (unsigned long)ip; \
137 (ctx)->uc_mcontext.psw.addr = (unsigned long)ip; \
140 #define MONO_CONTEXT_SET_SP(ctx,bp) MONO_CONTEXT_SET_BP((ctx),(bp))
141 #define MONO_CONTEXT_SET_BP(ctx,bp) \
143 (ctx)->uc_mcontext.gregs[15] = (unsigned long)bp; \
144 (ctx)->uc_stack.ss_sp = (void*)bp; \
147 #define MONO_CONTEXT_GET_IP(ctx) context_get_ip ((ctx))
148 #define MONO_CONTEXT_GET_BP(ctx) MONO_CONTEXT_GET_SP((ctx))
149 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[15]))
151 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
152 MonoS390StackFrame *sframe; \
153 __asm__ volatile("lr %0,15" : "=r" (sframe)); \
154 MONO_CONTEXT_SET_BP ((ctx), sframe->prev); \
155 MONO_CONTEXT_SET_SP ((ctx), sframe->prev); \
156 sframe = (MonoS390StackFrame*)sframe->prev; \
157 MONO_CONTEXT_SET_IP ((ctx), sframe->return_address); \
160 /*------------------------------------------------------------------*/
162 /* Name - context_get_ip */
164 /* Function - Extract the current instruction address from the */
167 /*------------------------------------------------------------------*/
169 static inline gpointer
170 context_get_ip (MonoContext
*ctx
)
174 ip
= (gpointer
) ((gint32
) (ctx
->uc_mcontext
.psw
.addr
) & 0x7fffffff);
178 /*========================= End of Function ========================*/
180 /*------------------------------------------------------------------*/
182 /* Name - s390_patch */
184 /* Function - Patch the code with a given value. */
186 /*------------------------------------------------------------------*/
189 s390_patch (guchar
*code
, gint32 target
)
191 gint32
*offset
= (gint32
*) code
;
198 /*========================= End of Function ========================*/
200 /*------------------------------------------------------------------*/
202 /* Name - restoreLMF */
204 /* Function - Restore the LMF state prior to exiting a method. */
206 /*------------------------------------------------------------------*/
208 #define restoreLMF(code, frame_reg, stack_usage) do \
212 s390_lr (code, s390_r13, frame_reg); \
214 lmfOffset = stack_usage - sizeof(MonoLMF); \
216 /*-------------------------------------------------*/ \
218 /*-------------------------------------------------*/ \
219 s390_ahi (code, s390_r13, lmfOffset); \
221 /*-------------------------------------------------*/ \
222 /* r6 = &jit_tls->lmf */ \
223 /*-------------------------------------------------*/ \
224 s390_l (code, s390_r6, 0, s390_r13, \
225 G_STRUCT_OFFSET(MonoLMF, lmf_addr)); \
227 /*-------------------------------------------------*/ \
228 /* r0 = lmf.previous_lmf */ \
229 /*-------------------------------------------------*/ \
230 s390_l (code, s390_r0, 0, s390_r13, \
231 G_STRUCT_OFFSET(MonoLMF, previous_lmf)); \
233 /*-------------------------------------------------*/ \
234 /* jit_tls->lmf = previous_lmf */ \
235 /*-------------------------------------------------*/ \
236 s390_l (code, s390_r13, 0, s390_r6, 0); \
237 s390_st (code, s390_r0, 0, s390_r6, 0); \
240 /*========================= End of Function ========================*/
242 #endif /* __MONO_MINI_S390_H__ */