mono/mini/mini-ppc.h

   1 #ifndef __MONO_MINI_PPC_H__
   2 #define __MONO_MINI_PPC_H__
   3
   4 #include <mono/arch/ppc/ppc-codegen.h>
   5 #include <glib.h>
   6
   7 #define MONO_MAX_IREGS 32
   8 #define MONO_MAX_FREGS 32
   9
  10 #define MONO_SAVED_GREGS 19
  11 #define MONO_SAVED_FREGS 18
  12
  13 #define MONO_ARCH_FRAME_ALIGNMENT 4
  14
  15 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  16  * reproduceable results for benchmarks */
  17 #define MONO_ARCH_CODE_ALIGNMENT 32
  18
  19 void ppc_patch (guchar *code, guchar *target);
  20
  21 struct MonoLMF {
  22         gpointer    previous_lmf;
  23         gpointer    lmf_addr;
  24         MonoMethod *method;
  25         gulong     ebp;
  26         gulong     eip;
  27         gulong     iregs [MONO_SAVED_GREGS]; /* 13..31 */
  28         gdouble    fregs [MONO_SAVED_FREGS]; /* 14..31 */
  29 };
  30
  31 /* we define our own structure and we'll copy the data
  32  * from sigcontext/ucontext/mach when we need it.
  33  * This also makes us save stack space and time when copying
  34  * We might also want to add an additional field to propagate
  35  * the original context from the signal handler.
  36  */
  37 typedef struct {
  38         gulong sc_ir;          // pc
  39         gulong sc_sp;          // r1
  40         gulong regs [MONO_SAVED_GREGS];
  41         double fregs [MONO_SAVED_FREGS];
  42 } MonoContext;
  43
  44 typedef struct MonoCompileArch {
  45 } MonoCompileArch;
  46
  47 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
  48 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
  49 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
  50 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
  51 #define MONO_ARCH_EMULATE_FREM 1
  52 #define MONO_ARCH_BIGMUL_INTRINS 1
  53 //#define MONO_ARCH_ENABLE_EMIT_STATE_OPT 1
  54
  55 /* Parameters used by the register allocator */
  56 #define MONO_ARCH_HAS_XP_LOCAL_REGALLOC
  57
  58 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r12))
  59 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
  60
  61 #ifdef __APPLE__
  62 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
  63 #else
  64 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
  65 #endif
  66 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
  67
  68 #define MONO_ARCH_USE_FPSTACK FALSE
  69 #define MONO_ARCH_FPSTACK_SIZE 0
  70
  71 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'l')? ppc_r4:\
  72                                         ((desc) == 'g'? ppc_f1:-1))
  73 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
  74
  75 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
  76 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
  77 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
  78
  79 /* deal with some of the ABI differences here */
  80 #ifdef __APPLE__
  81 #define PPC_RET_ADDR_OFFSET 8
  82 #define PPC_STACK_ALIGNMENT 16
  83 #define PPC_STACK_PARAM_OFFSET 24
  84 #define PPC_MINIMAL_STACK_SIZE 24
  85 #define PPC_FIRST_ARG_REG ppc_r3
  86 #define PPC_LAST_ARG_REG ppc_r10
  87 #define PPC_FIRST_FPARG_REG ppc_f1
  88 #define PPC_LAST_FPARG_REG ppc_f13
  89 #define PPC_PASS_STRUCTS_BY_VALUE 1
  90 #else
  91 /* Linux */
  92 #define PPC_RET_ADDR_OFFSET 4
  93 #define PPC_STACK_ALIGNMENT 16
  94 #define PPC_STACK_PARAM_OFFSET 8
  95 #define PPC_MINIMAL_STACK_SIZE 8
  96 #define PPC_FIRST_ARG_REG ppc_r3
  97 #define PPC_LAST_ARG_REG ppc_r10
  98 #define PPC_FIRST_FPARG_REG ppc_f1
  99 #define PPC_LAST_FPARG_REG ppc_f8
 100 /* set the next to 0 once inssel-ppc.brg is updated */
 101 #define PPC_PASS_STRUCTS_BY_VALUE 1
 102 #define PPC_SMALL_RET_STRUCT_IN_REG 1
 103
 104 #endif
 105
 106 #define MONO_ARCH_USE_SIGACTION 1
 107 #define MONO_ARCH_NEED_DIV_CHECK 1
 108
 109 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
 110 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
 111
 112 /* we have the stack pointer, not the base pointer in sigcontext */
 113 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (int)ip; } while (0);
 114 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (int)bp; } while (0);
 115
 116 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
 117 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->sc_sp))
 118 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
 119
 120 #ifdef __APPLE__
 121
 122 typedef struct {
 123         unsigned long sp;
 124         unsigned long unused1;
 125         unsigned long lr;
 126 } MonoPPCStackFrame;
 127
 128 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 129                 MonoPPCStackFrame *sframe;      \
 130                 __asm__ volatile("lwz   %0,0(r1)" : "=r" (sframe));     \
 131                 MONO_CONTEXT_SET_BP ((ctx), sframe->sp);        \
 132                 sframe = (MonoPPCStackFrame*)sframe->sp;        \
 133                 MONO_CONTEXT_SET_IP ((ctx), sframe->lr);        \
 134         } while (0)
 135
 136 #else
 137
 138 typedef struct {
 139         unsigned long sp;
 140         unsigned long lr;
 141 } MonoPPCStackFrame;
 142
 143 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,func) do {      \
 144                 MonoPPCStackFrame *sframe;      \
 145                 __asm__ volatile("lwz   %0,0(1)" : "=r" (sframe));      \
 146                 MONO_CONTEXT_SET_BP ((ctx), sframe->sp);        \
 147                 sframe = (MonoPPCStackFrame*)sframe->sp;        \
 148                 MONO_CONTEXT_SET_IP ((ctx), sframe->lr);        \
 149         } while (0)
 150
 151 #endif
 152
 153 #define mono_find_jit_info mono_arch_find_jit_info
 154 #define CUSTOM_STACK_WALK 1
 155 #define CUSTOM_EXCEPTION_HANDLING 1
 156
 157 typedef struct {
 158         gint8 reg;
 159         gint8 size;
 160         int vtsize;
 161         int offset;
 162 } MonoPPCArgInfo;
 163
 164 #endif /* __MONO_MINI_PPC_H__ */