mono/mini/mini-sparc.h

   1 #ifndef __MONO_MINI_SPARC_H__
   2 #define __MONO_MINI_SPARC_H__
   3
   4 #include <mono/arch/sparc/sparc-codegen.h>
   5
   6 #include <glib.h>
   7
   8 #define MONO_ARCH_CPU_SPEC sparc_desc
   9
  10 #define MONO_MAX_IREGS 32
  11 #define MONO_MAX_FREGS 32
  12
  13 /* Parameters used by the register allocator */
  14
  15 /*
  16  * Use %o0..%o5 as local registers, plus %l7 since we need an extra register for
  17  * holding the sreg1 in call instructions.
  18  */
  19 #define MONO_ARCH_CALLEE_REGS ((1 << sparc_o0) | (1 << sparc_o1) | (1 << sparc_o2) | (1 << sparc_o3) | (1 << sparc_o4) | (1 << sparc_o5) | (1 << sparc_l7))
  20
  21 #define MONO_ARCH_CALLEE_SAVED_REGS ((~MONO_ARCH_CALLEE_REGS) & ~(1 << sparc_g1))
  22
  23 #ifdef SPARCV9
  24 /* Use %d34..%d62 as the double precision floating point local registers */
  25 /* %d32 has the same encoding as %f1, so %d36%d38 == 0b1010 == 0xa */
  26 #define MONO_ARCH_CALLEE_FREGS (0xaaaaaaa8)
  27 #else
  28 /* Use %f2..%f30 as the double precision floating point local registers */
  29 #define MONO_ARCH_CALLEE_FREGS (0x55555554)
  30 #endif
  31
  32 #define MONO_ARCH_CALLEE_SAVED_FREGS 0
  33
  34 #define MONO_ARCH_USE_FPSTACK FALSE
  35 #define MONO_ARCH_FPSTACK_SIZE 0
  36 #ifdef SPARCV9
  37 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? sparc_o0 : -1)
  38 #else
  39 #define MONO_ARCH_INST_FIXED_REG(desc) ((desc == 'o') ? sparc_o0 : ((desc == 'l') ? sparc_o1 : -1))
  40 #endif
  41 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
  42
  43 #ifdef SPARCV9
  44 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
  45 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
  46 #else
  47 #define MONO_ARCH_INST_IS_REGPAIR(desc) ((desc == 'l') || (desc == 'L'))
  48 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (((desc == 'l') ? sparc_o0 : (desc == 'L' ? (hreg1 + 1) : -1)))
  49 #endif
  50
  51 #if SIZEOF_VOID_P == 8
  52 #define MONO_ARCH_FRAME_ALIGNMENT 16
  53 #else
  54 #define MONO_ARCH_FRAME_ALIGNMENT 8
  55 #endif
  56
  57 #define MONO_ARCH_CODE_ALIGNMENT 32
  58
  59 #define MONO_ARCH_RETREG1 sparc_i0
  60
  61 #ifdef SPARCV9
  62 #define MONO_SPARC_STACK_BIAS 2047
  63 #else
  64 #define MONO_SPARC_STACK_BIAS 0
  65 #endif
  66
  67 struct MonoLMF {
  68         gpointer    previous_lmf;
  69         gpointer    lmf_addr;
  70         MonoMethod *method;
  71         gpointer    ip;
  72         gpointer    sp;
  73         gpointer    ebp;
  74 };
  75
  76 typedef struct MonoContext {
  77         guint8 *ip;
  78         gpointer *sp;
  79         gpointer *fp;
  80 } MonoContext;
  81
  82 typedef struct MonoCompileArch {
  83         gint32 lmf_offset;
  84         gint32 localloc_offset;
  85         void *float_spill_slot;
  86 } MonoCompileArch;
  87
  88 #define MONO_CONTEXT_SET_IP(ctx,eip) do { (ctx)->ip = (gpointer)(eip); } while (0);
  89 #define MONO_CONTEXT_SET_BP(ctx,ebp) do { (ctx)->fp = (gpointer*)(ebp); } while (0);
  90 #define MONO_CONTEXT_SET_SP(ctx,esp) do { (ctx)->sp = (gpointer*)(esp); } while (0);
  91
  92 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->ip))
  93 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->fp))
  94 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sp))
  95
  96 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
  97                 mono_arch_flush_register_windows ();    \
  98                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
  99                 MONO_CONTEXT_SET_BP ((ctx), __builtin_frame_address (0));       \
 100                 MONO_CONTEXT_SET_SP ((ctx), __builtin_frame_address (0));       \
 101         } while (0)
 102
 103 #ifndef __linux__
 104 /*
 105  * Can't use sigaction on sparc/linux, since it doesn't support SA_SIGINFO. Instead, we
 106  * have to use the obsolete sigcontext parameter:
 107  * http://www.ussg.iu.edu/hypermail/linux/kernel/0110.3/1531.html.
 108  */
 109 #define MONO_ARCH_USE_SIGACTION 1
 110 #endif
 111
 112 #ifdef HAVE_WORKING_SIGALTSTACK
 113 /*#define MONO_ARCH_SIGSEGV_ON_ALTSTACK*/
 114 #endif
 115
 116 #define MONO_ARCH_EMULATE_FCONV_TO_I8   1
 117 #define MONO_ARCH_EMULATE_LCONV_TO_R8   1
 118 #define MONO_ARCH_EMULATE_LCONV_TO_R4   1
 119 #define MONO_ARCH_EMULATE_CONV_R8_UN    1
 120 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
 121 #define MONO_ARCH_EMULATE_FREM 1
 122 #define MONO_ARCH_NEED_DIV_CHECK 1
 123 #define MONO_ARCH_HAVE_THROW_CORLIB_EXCEPTION 1
 124 #define MONO_ARCH_HAVE_IMT 1
 125 #define MONO_ARCH_IMT_REG sparc_g1
 126 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
 127
 128 #ifdef SPARCV9
 129 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
 130 #endif
 131
 132 #ifndef __GNUC__
 133 /* assume Sun compiler if not GCC */
 134 static void * __builtin_return_address(int depth)
 135 {
 136         asm("ta      3");
 137         asm("tst     %i0");
 138         asm("be      retAddr_End");
 139         asm("mov     %fp, %l0");
 140         asm("retAddr_Start:");
 141         asm("sub     %i0, 1, %i0");
 142         asm("tst     %i0");
 143         asm("bne     retAddr_Start");
 144 #if SPARCV9
 145         asm("ldx     [%l0+2159], %l0");
 146         asm("retAddr_End:");
 147         asm("ldx     [%l0+2167], %i0");
 148 #else
 149         asm("ld      [%l0+56], %l0");
 150         asm("retAddr_End:");
 151         asm("ld      [%l0+60], %i0");
 152 #endif
 153 }
 154
 155 static void * __builtin_frame_address(int depth)
 156 {
 157         asm("ta      3");
 158         asm("tst     %i0");
 159         asm("be      frameAddr_End");
 160         asm("mov     %fp, %l0");
 161         asm("frameAddr_Start:");
 162         asm("sub     %i0, 1, %i0");
 163         asm("tst     %i0");
 164         asm("bne     frameAddr_Start");
 165 #if SPARCV9
 166         asm("ldx     [%l0+2159], %l0");
 167         asm("frameAddr_End:");
 168         asm("ldx     [%l0+2159], %i0");
 169 #else
 170         asm("ld      [%l0+56], %l0");
 171         asm("frameAddr_End:");
 172         asm("ld      [%l0+56], %i0");
 173 #endif
 174 }
 175 #endif
 176
 177 gboolean mono_sparc_is_virtual_call (guint32 *code);
 178
 179 gpointer* mono_sparc_get_vcall_slot_addr (guint32 *code, mgreg_t *regs);
 180
 181 void mono_sparc_flushw (void);
 182
 183 gboolean mono_sparc_is_v9 (void);
 184
 185 gboolean mono_sparc_is_sparc64 (void);
 186
 187 struct MonoCompile;
 188
 189 guint32* mono_sparc_emit_save_lmf (guint32* code, guint32 lmf_offset);
 190
 191 guint32* mono_sparc_emit_restore_lmf (guint32 *code, guint32 lmf_offset);
 192
 193 #endif /* __MONO_MINI_SPARC_H__ */