1 #ifndef __MONO_MINI_S390X_H__
2 #define __MONO_MINI_S390X_H__
4 #include <mono/arch/s390x/s390x-codegen.h>
7 #define MONO_ARCH_CPU_SPEC s390x_cpu_desc
9 #define MONO_MAX_IREGS 16
10 #define MONO_MAX_FREGS 16
12 /*-------------------------------------------*/
13 /* Parameters used by the register allocator */
14 /*-------------------------------------------*/
16 #define S390_LONG(loc, opy, op, r, ix, br, off) \
18 if (s390_is_imm20(off)) { \
19 s390_##opy (loc, r, ix, br, off); \
21 s390_basr (code, s390_r13, 0); \
23 s390_llong(code, off); \
24 s390_lg (code, s390_r13, 0, s390_r13, 4); \
25 s390_##op (code, r, s390_r13, br, 0); \
28 if (s390_is_uimm12(off)) { \
29 s390_##op (loc, r, ix, br, off); \
31 s390_basr (code, s390_r13, 0); \
33 s390_llong(code, off); \
34 s390_lg (code, s390_r13, 0, s390_r13, 4); \
35 s390_##op (code, r, s390_r13, br, 0); \
40 gpointer previous_lmf;
50 typedef struct ucontext MonoContext;
52 typedef struct MonoCompileArch {
66 // #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
67 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
68 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS 1
69 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS 1
70 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW 1
71 #define MONO_ARCH_NEED_DIV_CHECK 1
72 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
73 #define MONO_ARCH_HAVE_ATOMIC_EXCHANGE 1
74 #define MONO_ARCH_SIGNAL_STACK_SIZE 256*1024
75 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
76 #define MONO_ARCH_ENABLE_NORMALIZE_OPCODES 1
77 // #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
79 #define MONO_ARCH_USE_SIGACTION 1
81 #define S390_STACK_ALIGNMENT 8
82 #define S390_FIRST_ARG_REG s390_r2
83 #define S390_LAST_ARG_REG s390_r6
84 #define S390_FIRST_FPARG_REG s390_f0
85 #define S390_LAST_FPARG_REG s390_f6
86 #define S390_PASS_STRUCTS_BY_VALUE 1
87 #define S390_SMALL_RET_STRUCT_IN_REG 1
89 #define S390_NUM_REG_ARGS (S390_LAST_ARG_REG-S390_FIRST_ARG_REG+1)
90 #define S390_NUM_REG_FPARGS ((S390_LAST_FPARG_REG-S390_FIRST_FPARG_REG)/2)
92 /*===============================================*/
93 /* Definitions used by mini-codegen.c */
94 /*===============================================*/
96 /*------------------------------------------------------*/
97 /* use s390_r2-s390_r6 as parm registers */
98 /* s390_r0, s390_r1, s390_r12, s390_r13 used internally */
99 /* s390_r8..s390_r11 are used for global regalloc */
100 /* s390_r15 is the stack pointer */
101 /*------------------------------------------------------*/
102 #define MONO_ARCH_CALLEE_REGS (0xfc)
104 #define MONO_ARCH_CALLEE_SAVED_REGS 0xff80
106 /*----------------------------------------*/
107 /* use s390_f1/s390_f3-s390_f15 as temps */
108 /*----------------------------------------*/
110 #define MONO_ARCH_CALLEE_FREGS (0xfffe)
112 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
114 #define MONO_ARCH_USE_FPSTACK FALSE
115 #define MONO_ARCH_FPSTACK_SIZE 0
117 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? s390_r2 : \
118 ((desc == 'g') ? s390_f0 : - 1))
120 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
122 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
124 #define MONO_ARCH_INST_IS_REGPAIR(desc) (0)
125 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hr) -1
127 #define MONO_ARCH_IS_GLOBAL_IREG(reg) 0
129 #define MONO_ARCH_FRAME_ALIGNMENT 8
130 #define MONO_ARCH_CODE_ALIGNMENT 32
132 #define MONO_ARCH_RETREG1 s390_r2
134 /*-----------------------------------------------*/
135 /* Macros used to generate instructions */
136 /*-----------------------------------------------*/
137 #define S390_OFFSET(b, t) (guchar *) ((guint64) (b) - (guint64) (t))
138 #define S390_RELATIVE(b, t) (guchar *) ((((guint64) (b) - (guint64) (t))) / 2)
140 #define CODEPTR(c, o) (o) = (short *) ((guint64) c - 2)
141 #define PTRSLOT(c, o) *(o) = (short) ((guint64) c - (guint64) (o) + 2)/2
144 #define S390_ALIGN(v, a) (((a) > 0 ? (((v) + ((a) - 1)) & ~((a) - 1)) : (v)))
146 #define MONO_CONTEXT_SET_IP(ctx,ip) \
148 (ctx)->uc_mcontext.gregs[14] = (unsigned long)ip; \
149 (ctx)->uc_mcontext.psw.addr = (unsigned long)ip; \
152 #define MONO_CONTEXT_SET_SP(ctx,bp) MONO_CONTEXT_SET_BP((ctx),(bp))
153 #define MONO_CONTEXT_SET_BP(ctx,bp) \
155 (ctx)->uc_mcontext.gregs[15] = (unsigned long)bp; \
156 (ctx)->uc_stack.ss_sp = (void*)bp; \
159 #define MONO_CONTEXT_GET_IP(ctx) (gpointer) (ctx)->uc_mcontext.psw.addr
160 #define MONO_CONTEXT_GET_BP(ctx) MONO_CONTEXT_GET_SP((ctx))
161 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[15]))
163 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do { \
164 MonoS390StackFrame *sframe; \
165 __asm__ volatile("lgr %0,15" : "=r" (sframe)); \
166 MONO_CONTEXT_SET_BP ((ctx), sframe->prev); \
167 MONO_CONTEXT_SET_SP ((ctx), sframe->prev); \
168 sframe = (MonoS390StackFrame*)sframe->prev; \
169 MONO_CONTEXT_SET_IP ((ctx), sframe->return_address); \
172 /*------------------------------------------------------------------*/
174 /* Name - s390_patch_rel */
176 /* Function - Patch the code with a given offset. */
178 /*------------------------------------------------------------------*/
181 s390_patch_rel (guchar *code, guint64 target)
183 guint32 *offset = (guint32 *) code;
186 *offset = (guint32) target;
190 /*========================= End of Function ========================*/
192 /*------------------------------------------------------------------*/
194 /* Name - s390_patch_addr */
196 /* Function - Patch the code with a given address. */
198 /*------------------------------------------------------------------*/
201 s390_patch_addr (guchar *code, guint64 target)
203 guint64 *offset = (guint64 *) code;
210 /*========================= End of Function ========================*/
212 /*------------------------------------------------------------------*/
214 /* Name - restoreLMF */
216 /* Function - Restore the LMF state prior to exiting a method. */
218 /*------------------------------------------------------------------*/
220 #define restoreLMF(code, frame_reg, stack_usage) do \
224 s390_lgr (code, s390_r13, frame_reg); \
226 lmfOffset = stack_usage - sizeof(MonoLMF); \
228 /*-------------------------------------------------*/ \
230 /*-------------------------------------------------*/ \
231 s390_aghi (code, s390_r13, lmfOffset); \
233 /*-------------------------------------------------*/ \
234 /* r6 = &jit_tls->lmf */ \
235 /*-------------------------------------------------*/ \
236 s390_lg (code, s390_r6, 0, s390_r13, \
237 G_STRUCT_OFFSET(MonoLMF, lmf_addr)); \
239 /*-------------------------------------------------*/ \
240 /* r0 = lmf.previous_lmf */ \
241 /*-------------------------------------------------*/ \
242 s390_lg (code, s390_r0, 0, s390_r13, \
243 G_STRUCT_OFFSET(MonoLMF, previous_lmf)); \
245 /*-------------------------------------------------*/ \
246 /* jit_tls->lmf = previous_lmf */ \
247 /*-------------------------------------------------*/ \
248 s390_lg (code, s390_r13, 0, s390_r6, 0); \
249 s390_stg (code, s390_r0, 0, s390_r6, 0); \
252 /*========================= End of Function ========================*/
254 #endif /* __MONO_MINI_S390X_H__ */