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 #define MONO_ARCH_HAVE_INIT_LMF_EXT                     1
  68
  69 #define S390_STACK_ALIGNMENT             8
  70 #define S390_FIRST_ARG_REG              s390_r2
  71 #define S390_LAST_ARG_REG               s390_r6
  72 #define S390_FIRST_FPARG_REG            s390_f0
  73 #define S390_LAST_FPARG_REG             s390_f6
  74
  75 /*===============================================*/
  76 /* Definitions used by mini-codegen.c            */
  77 /*===============================================*/
  78
  79 /*------------------------------------------------------*/
  80 /* use s390_r2-s390_r6 as parm registers                */
  81 /* s390_r0, s390_r1, s390_r12, s390_r13 used internally */
  82 /* s390_r8..s390_r10 are used for global regalloc       */
  83 /* -- except for s390_r9 which is used as IMT pointer   */
  84 /* s390_r11 is sometimes used as the frame pointer      */
  85 /* s390_r15 is the stack pointer                        */
  86 /*------------------------------------------------------*/
  87
  88 #define MONO_ARCH_CALLEE_REGS (0x00fc)
  89
  90 #define MONO_ARCH_CALLEE_SAVED_REGS 0xfd00
  91
  92 /*----------------------------------------*/
  93 /* use s390_f1/s390_f3-s390_f15 as temps  */
  94 /*----------------------------------------*/
  95
  96 #define MONO_ARCH_CALLEE_FREGS (0xfffe)
  97
  98 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
  99
 100 #define MONO_ARCH_USE_FPSTACK FALSE
 101 #define MONO_ARCH_FPSTACK_SIZE 0
 102
 103 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? s390_r2 :               \
 104                                         ((desc == 'g') ? s390_f0 :              \
 105                                         ((desc == 'A') ? S390_FIRST_ARG_REG : -1)))
 106
 107 #define MONO_ARCH_INST_IS_FLOAT(desc)  ((desc == 'f') || (desc == 'g'))
 108
 109 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 110
 111 #define MONO_ARCH_INST_IS_REGPAIR(desc) (0)
 112 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hr) -1
 113
 114 #define MONO_ARCH_IS_GLOBAL_IREG(reg) 0
 115
 116 #define MONO_ARCH_FRAME_ALIGNMENT 8
 117 #define MONO_ARCH_CODE_ALIGNMENT 32
 118
 119 /*-----------------------------------------------*/
 120 /* SIMD Related Definitions                      */
 121 /*-----------------------------------------------*/
 122
 123 #define MONO_MAX_XREGS                  31
 124 #define MONO_ARCH_CALLEE_XREGS          0x0
 125 #define MONO_ARCH_CALLEE_SAVED_XREGS    0x0
 126
 127 /*-----------------------------------------------*/
 128 /* Macros used to generate instructions          */
 129 /*-----------------------------------------------*/
 130 #define S390_OFFSET(b, t)       (guchar *) ((guint64) (b) - (guint64) (t))
 131 #define S390_RELATIVE(b, t)     (guchar *) ((((guint64) (b) - (guint64) (t))) / 2)
 132
 133 #define CODEPTR(c, o) (o) = (short *) ((guint64) c - 2)
 134 #define PTRSLOT(c, o) *(o) = (short) ((guint64) c - (guint64) (o) + 2)/2
 135
 136 #define S390_CC_EQ                      8
 137 #define S390_ALIGN(v, a)        (((a) > 0 ? (((v) + ((a) - 1)) & ~((a) - 1)) : (v)))
 138
 139 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do {                      \
 140                 MonoS390StackFrame *sframe;                             \
 141                 __asm__ volatile("lgr   %0,15" : "=r" (sframe));        \
 142                 MONO_CONTEXT_SET_BP ((ctx), sframe->prev);              \
 143                 MONO_CONTEXT_SET_SP ((ctx), sframe->prev);              \
 144                 MONO_CONTEXT_SET_IP ((ctx), func);                      \
 145         } while (0)
 146
 147 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
 148
 149 /*------------------------------------------------------------------*/
 150 /*                                                                  */
 151 /* Name         - s390_patch_rel                                    */
 152 /*                                                                  */
 153 /* Function     - Patch the code with a given offset.               */
 154 /*                                                                  */
 155 /*------------------------------------------------------------------*/
 156
 157 static void inline
 158 s390_patch_rel (guchar *code, guint64 target)
 159 {
 160         guint32 *offset = (guint32 *) code;
 161
 162         if (target != 0) {
 163                 *offset = (guint32) target;
 164         }
 165 }
 166
 167 /*========================= End of Function ========================*/
 168
 169 /*------------------------------------------------------------------*/
 170 /*                                                                  */
 171 /* Name         - s390_patch_addr                                   */
 172 /*                                                                  */
 173 /* Function     - Patch the code with a given address.              */
 174 /*                                                                  */
 175 /*------------------------------------------------------------------*/
 176
 177 static void inline
 178 s390_patch_addr (guchar *code, guint64 target)
 179 {
 180         guint64 *offset = (guint64 *) code;
 181
 182         if (target != 0) {
 183                 *offset = target;
 184         }
 185 }
 186
 187 /*========================= End of Function ========================*/
 188
 189 /*------------------------------------------------------------------*/
 190 /*                                                                  */
 191 /* Name         - restoreLMF                                        */
 192 /*                                                                  */
 193 /* Function     - Restore the LMF state prior to exiting a method.  */
 194 /*                                                                  */
 195 /*------------------------------------------------------------------*/
 196
 197 #define restoreLMF(code, frame_reg, stack_usage) do                     \
 198 {                                                                       \
 199         int lmfOffset = 0;                                              \
 200                                                                         \
 201         s390_lgr (code, s390_r13, frame_reg);                           \
 202                                                                         \
 203         lmfOffset = stack_usage -  sizeof(MonoLMF);                     \
 204                                                                         \
 205         /*-------------------------------------------------*/           \
 206         /* r13 = my lmf                                    */           \
 207         /*-------------------------------------------------*/           \
 208         s390_aghi (code, s390_r13, lmfOffset);                          \
 209                                                                         \
 210         /*-------------------------------------------------*/           \
 211         /* r6 = &jit_tls->lmf                              */           \
 212         /*-------------------------------------------------*/           \
 213         s390_lg  (code, s390_r6, 0, s390_r13,                           \
 214                   G_STRUCT_OFFSET(MonoLMF, lmf_addr));                  \
 215                                                                         \
 216         /*-------------------------------------------------*/           \
 217         /* r0 = lmf.previous_lmf                           */           \
 218         /*-------------------------------------------------*/           \
 219         s390_lg  (code, s390_r0, 0, s390_r13,                           \
 220                   G_STRUCT_OFFSET(MonoLMF, previous_lmf));              \
 221                                                                         \
 222         /*-------------------------------------------------*/           \
 223         /* jit_tls->lmf = previous_lmf                     */           \
 224         /*-------------------------------------------------*/           \
 225         s390_lg  (code, s390_r13, 0, s390_r6, 0);                       \
 226         s390_stg (code, s390_r0, 0, s390_r6, 0);                        \
 227 } while (0)
 228
 229 /*========================= End of Function ========================*/
 230
 231 #endif /* __MONO_MINI_S390X_H__ */