mono/mini/mini-s390x.h

   1 /**
   2  * \file
   3  */
   4
   5 #ifndef __MONO_MINI_S390X_H__
   6 #define __MONO_MINI_S390X_H__
   7
   8 #include <mono/arch/s390x/s390x-codegen.h>
   9 #include <mono/utils/mono-context.h>
  10 #include <signal.h>
  11
  12 #define MONO_ARCH_CPU_SPEC mono_s390x_cpu_desc
  13
  14 #define MONO_MAX_IREGS 16
  15 #define MONO_MAX_FREGS 16
  16
  17 /*-------------------------------------------*/
  18 /* Parameters used by the register allocator */
  19 /*-------------------------------------------*/
  20
  21 struct MonoLMF {
  22         gpointer    previous_lmf;
  23         gpointer    lmf_addr;
  24         MonoMethod *method;
  25         gulong      ebp;
  26         gulong      eip;
  27         gulong      pregs[6];
  28         gulong      gregs[16];
  29         gdouble     fregs[16];
  30 };
  31
  32 typedef struct MonoCompileArch {
  33         gpointer    litpool;
  34         glong       litsize;
  35         int         bkchain_reg;
  36 } MonoCompileArch;
  37
  38 typedef struct
  39 {
  40         void *prev;
  41         void *unused[5];
  42         void *regs[8];
  43         void *return_address;
  44 } MonoS390StackFrame;
  45
  46 // #define MONO_ARCH_SIGSEGV_ON_ALTSTACK                1
  47 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN                1
  48 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS              1
  49 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS             1
  50 #define MONO_ARCH_HAVE_IS_INT_OVERFLOW                  1
  51 #define MONO_ARCH_NEED_DIV_CHECK                        1
  52 #define MONO_ARCH_SIGNAL_STACK_SIZE                     256*1024
  53 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS                   1
  54 #define MONO_ARCH_IMT_REG                               s390_r9
  55 #define MONO_ARCH_VTABLE_REG                            S390_FIRST_ARG_REG
  56 #define MONO_ARCH_RGCTX_REG                             MONO_ARCH_IMT_REG
  57 #define MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX                1
  58 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED                  1
  59 #define MONO_ARCH_HAVE_CONTEXT_SET_INT_REG              1
  60 #define MONO_ARCH_USE_SIGACTION                         1
  61 #define MONO_ARCH_GC_MAPS_SUPPORTED                     1
  62 #define MONO_ARCH_GSHARED_SUPPORTED                     1
  63 #define MONO_ARCH_MONITOR_ENTER_ADJUSTMENT              1
  64 #define MONO_ARCH_HAVE_INVALIDATE_METHOD                1
  65 #define MONO_ARCH_HAVE_OP_GENERIC_CLASS_INIT            1
  66 #define MONO_ARCH_HAVE_SETUP_ASYNC_CALLBACK             1
  67
  68 #define S390_STACK_ALIGNMENT             8
  69 #define S390_FIRST_ARG_REG              s390_r2
  70 #define S390_LAST_ARG_REG               s390_r6
  71 #define S390_FIRST_FPARG_REG            s390_f0
  72 #define S390_LAST_FPARG_REG             s390_f6
  73
  74 /*===============================================*/
  75 /* Definitions used by mini-codegen.c            */
  76 /*===============================================*/
  77
  78 /*------------------------------------------------------*/
  79 /* use s390_r2-s390_r6 as parm registers                */
  80 /* s390_r0, s390_r1, s390_r12, s390_r13 used internally */
  81 /* s390_r8..s390_r11 are used for global regalloc       */
  82 /* s390_r15 is the stack pointer                        */
  83 /*------------------------------------------------------*/
  84
  85 #define MONO_ARCH_CALLEE_REGS (0xfc)
  86
  87 #define MONO_ARCH_CALLEE_SAVED_REGS 0xff80
  88
  89 /*----------------------------------------*/
  90 /* use s390_f1/s390_f3-s390_f15 as temps  */
  91 /*----------------------------------------*/
  92
  93 #define MONO_ARCH_CALLEE_FREGS (0xfffe)
  94
  95 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
  96
  97 #define MONO_ARCH_USE_FPSTACK FALSE
  98 #define MONO_ARCH_FPSTACK_SIZE 0
  99
 100 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? s390_r2 :               \
 101                                         ((desc == 'g') ? s390_f0 :              \
 102                                         ((desc == 'A') ? S390_FIRST_ARG_REG : -1)))
 103
 104 #define MONO_ARCH_INST_IS_FLOAT(desc)  ((desc == 'f') || (desc == 'g'))
 105
 106 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 107
 108 #define MONO_ARCH_INST_IS_REGPAIR(desc) (0)
 109 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hr) -1
 110
 111 #define MONO_ARCH_IS_GLOBAL_IREG(reg) 0
 112
 113 #define MONO_ARCH_FRAME_ALIGNMENT 8
 114 #define MONO_ARCH_CODE_ALIGNMENT 32
 115
 116 /*-----------------------------------------------*/
 117 /* SIMD Related Definitions                      */
 118 /*-----------------------------------------------*/
 119
 120 #define MONO_MAX_XREGS                  31
 121 #define MONO_ARCH_CALLEE_XREGS          0x0
 122 #define MONO_ARCH_CALLEE_SAVED_XREGS    0x0
 123
 124 /*-----------------------------------------------*/
 125 /* Macros used to generate instructions          */
 126 /*-----------------------------------------------*/
 127 #define S390_OFFSET(b, t)       (guchar *) ((guint64) (b) - (guint64) (t))
 128 #define S390_RELATIVE(b, t)     (guchar *) ((((guint64) (b) - (guint64) (t))) / 2)
 129
 130 #define CODEPTR(c, o) (o) = (short *) ((guint64) c - 2)
 131 #define PTRSLOT(c, o) *(o) = (short) ((guint64) c - (guint64) (o) + 2)/2
 132
 133 #define S390_CC_EQ                      8
 134 #define S390_ALIGN(v, a)        (((a) > 0 ? (((v) + ((a) - 1)) & ~((a) - 1)) : (v)))
 135
 136 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do {                      \
 137                 MonoS390StackFrame *sframe;                             \
 138                 __asm__ volatile("lgr   %0,15" : "=r" (sframe));        \
 139                 MONO_CONTEXT_SET_BP ((ctx), sframe->prev);              \
 140                 MONO_CONTEXT_SET_SP ((ctx), sframe->prev);              \
 141                 MONO_CONTEXT_SET_IP ((ctx), func);                      \
 142         } while (0)
 143
 144 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
 145
 146 /*------------------------------------------------------------------*/
 147 /*                                                                  */
 148 /* Name         - s390_patch_rel                                    */
 149 /*                                                                  */
 150 /* Function     - Patch the code with a given offset.               */
 151 /*                                                                  */
 152 /*------------------------------------------------------------------*/
 153
 154 static void inline
 155 s390_patch_rel (guchar *code, guint64 target)
 156 {
 157         guint32 *offset = (guint32 *) code;
 158
 159         if (target != 0) {
 160                 *offset = (guint32) target;
 161         }
 162 }
 163
 164 /*========================= End of Function ========================*/
 165
 166 /*------------------------------------------------------------------*/
 167 /*                                                                  */
 168 /* Name         - s390_patch_addr                                   */
 169 /*                                                                  */
 170 /* Function     - Patch the code with a given address.              */
 171 /*                                                                  */
 172 /*------------------------------------------------------------------*/
 173
 174 static void inline
 175 s390_patch_addr (guchar *code, guint64 target)
 176 {
 177         guint64 *offset = (guint64 *) code;
 178
 179         if (target != 0) {
 180                 *offset = target;
 181         }
 182 }
 183
 184 /*========================= End of Function ========================*/
 185
 186 /*------------------------------------------------------------------*/
 187 /*                                                                  */
 188 /* Name         - restoreLMF                                        */
 189 /*                                                                  */
 190 /* Function     - Restore the LMF state prior to exiting a method.  */
 191 /*                                                                  */
 192 /*------------------------------------------------------------------*/
 193
 194 #define restoreLMF(code, frame_reg, stack_usage) do                     \
 195 {                                                                       \
 196         int lmfOffset = 0;                                              \
 197                                                                         \
 198         s390_lgr (code, s390_r13, frame_reg);                           \
 199                                                                         \
 200         lmfOffset = stack_usage -  sizeof(MonoLMF);                     \
 201                                                                         \
 202         /*-------------------------------------------------*/           \
 203         /* r13 = my lmf                                    */           \
 204         /*-------------------------------------------------*/           \
 205         s390_aghi (code, s390_r13, lmfOffset);                          \
 206                                                                         \
 207         /*-------------------------------------------------*/           \
 208         /* r6 = &jit_tls->lmf                              */           \
 209         /*-------------------------------------------------*/           \
 210         s390_lg  (code, s390_r6, 0, s390_r13,                           \
 211                   G_STRUCT_OFFSET(MonoLMF, lmf_addr));                  \
 212                                                                         \
 213         /*-------------------------------------------------*/           \
 214         /* r0 = lmf.previous_lmf                           */           \
 215         /*-------------------------------------------------*/           \
 216         s390_lg  (code, s390_r0, 0, s390_r13,                           \
 217                   G_STRUCT_OFFSET(MonoLMF, previous_lmf));              \
 218                                                                         \
 219         /*-------------------------------------------------*/           \
 220         /* jit_tls->lmf = previous_lmf                     */           \
 221         /*-------------------------------------------------*/           \
 222         s390_lg  (code, s390_r13, 0, s390_r6, 0);                       \
 223         s390_stg (code, s390_r0, 0, s390_r6, 0);                        \
 224 } while (0)
 225
 226 /*========================= End of Function ========================*/
 227
 228 #endif /* __MONO_MINI_S390X_H__ */