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 #ifdef __mono_ppc64__
   8 #define MONO_ARCH_CPU_SPEC ppc64_cpu_desc
   9 #else
  10 #define MONO_ARCH_CPU_SPEC ppcg4
  11 #endif
  12
  13 #define MONO_MAX_IREGS 32
  14 #define MONO_MAX_FREGS 32
  15
  16 #define MONO_SAVED_GREGS 19
  17 #define MONO_SAVED_FREGS 18
  18
  19 #define MONO_ARCH_FRAME_ALIGNMENT 16
  20
  21 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  22  * reproduceable results for benchmarks */
  23 #define MONO_ARCH_CODE_ALIGNMENT 32
  24
  25 void ppc_patch (guchar *code, const guchar *target);
  26 void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd);
  27
  28 struct MonoLMF {
  29         gpointer    previous_lmf;
  30         gpointer    lmf_addr;
  31         MonoMethod *method;
  32         gulong     ebp;
  33         gulong     eip;
  34         gulong     iregs [MONO_SAVED_GREGS]; /* 13..31 */
  35         gdouble    fregs [MONO_SAVED_FREGS]; /* 14..31 */
  36 };
  37
  38 /* we define our own structure and we'll copy the data
  39  * from sigcontext/ucontext/mach when we need it.
  40  * This also makes us save stack space and time when copying
  41  * We might also want to add an additional field to propagate
  42  * the original context from the signal handler.
  43  */
  44 typedef struct {
  45         gulong sc_ir;          // pc
  46         gulong sc_sp;          // r1
  47         gulong regs [MONO_SAVED_GREGS];
  48         double fregs [MONO_SAVED_FREGS];
  49 } MonoContext;
  50
  51 typedef struct MonoCompileArch {
  52         int fp_conv_var_offset;
  53 } MonoCompileArch;
  54
  55 #ifdef __mono_ppc64__
  56 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
  57 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
  58 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
  59 #define PPC_USES_FUNCTION_DESCRIPTOR
  60 #define MONO_ARCH_HAVE_TLS_GET 1
  61 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  62 #else /* must be __mono_ppc__ */
  63 #if 0
  64 /* enabling this for PPC32 causes hangs in the thread/delegate tests.
  65    So disable for now. */
  66 #if defined(__linux__)
  67 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  68 #endif
  69 #endif
  70
  71 #define MONO_ARCH_HAVE_TLS_GET 1
  72 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
  73 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
  74 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
  75 #endif
  76
  77 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
  78 #define MONO_ARCH_EMULATE_FREM 1
  79 #define MONO_ARCH_BIGMUL_INTRINS 1
  80 //#define MONO_ARCH_ENABLE_EMIT_STATE_OPT 1
  81
  82 /* Parameters used by the register allocator */
  83 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r11) | (1 << ppc_r12))
  84 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
  85
  86 #if defined(__APPLE__) || defined(__mono_ppc64__)
  87 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
  88 #else
  89 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
  90 #endif
  91 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
  92
  93 #define MONO_ARCH_USE_FPSTACK FALSE
  94 #define MONO_ARCH_FPSTACK_SIZE 0
  95
  96 #ifdef __mono_ppc64__
  97 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
  98                                         ((desc) == 'g'? ppc_f1:-1))
  99 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
 100 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
 101 #else
 102 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 103                                         ((desc) == 'l')? ppc_r4:\
 104                                         ((desc) == 'g'? ppc_f1:-1))
 105 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
 106 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
 107 #endif
 108
 109 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 110
 111 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
 112
 113 /* deal with some of the ABI differences here */
 114 #ifdef __APPLE__
 115 #define PPC_RET_ADDR_OFFSET 8
 116 #define PPC_STACK_PARAM_OFFSET 24
 117 #define PPC_MINIMAL_STACK_SIZE 24
 118 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 119 #define PPC_FIRST_ARG_REG ppc_r3
 120 #define PPC_LAST_ARG_REG ppc_r10
 121 #define PPC_FIRST_FPARG_REG ppc_f1
 122 #define PPC_LAST_FPARG_REG ppc_f13
 123 #define PPC_PASS_STRUCTS_BY_VALUE 1
 124 #else
 125 /* Linux */
 126 #ifdef __mono_ppc64__
 127 #define PPC_RET_ADDR_OFFSET 16
 128 #define PPC_STACK_PARAM_OFFSET 48
 129 #define PPC_MINIMAL_STACK_SIZE 48
 130 #define PPC_MINIMAL_PARAM_AREA_SIZE 64
 131 #define PPC_LAST_FPARG_REG ppc_f13
 132 #define PPC_PASS_STRUCTS_BY_VALUE 1
 133 #define PPC_SMALL_RET_STRUCT_IN_REG 0
 134 #define PPC_THREAD_PTR_REG ppc_r13
 135 #else
 136 #define PPC_RET_ADDR_OFFSET 4
 137 #define PPC_STACK_PARAM_OFFSET 8
 138 #define PPC_MINIMAL_STACK_SIZE 8
 139 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 140 #define PPC_LAST_FPARG_REG ppc_f8
 141 #define PPC_PASS_STRUCTS_BY_VALUE 0
 142 #define PPC_SMALL_RET_STRUCT_IN_REG 1
 143 #define PPC_THREAD_PTR_REG ppc_r2
 144 #endif
 145 #define PPC_FIRST_ARG_REG ppc_r3
 146 #define PPC_LAST_ARG_REG ppc_r10
 147 #define PPC_FIRST_FPARG_REG ppc_f1
 148 #endif
 149
 150 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
 151 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
 152 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
 153 #endif /* HAVE_WORKING_SIGALTSTACK */
 154
 155 #define MONO_ARCH_HAVE_CREATE_TRAMPOLINE_FROM_TOKEN
 156 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
 157 #define MONO_ARCH_HAVE_IMT 1
 158 #define MONO_ARCH_IMT_REG ppc_r12
 159 #define MONO_ARCH_COMMON_VTABLE_TRAMPOLINE 1
 160
 161 #define MONO_ARCH_VTABLE_REG    ppc_r12
 162 #define MONO_ARCH_RGCTX_REG     ppc_r12
 163
 164 #define MONO_ARCH_NO_IOV_CHECK 1
 165 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
 166
 167 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
 168
 169 #define MONO_ARCH_NEED_DIV_CHECK 1
 170
 171 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
 172 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
 173
 174 /* we have the stack pointer, not the base pointer in sigcontext */
 175 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (gulong)ip; } while (0);
 176 /* FIXME: should be called SET_SP */
 177 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (gulong)bp; } while (0);
 178
 179 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
 180 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->regs [ppc_r31-13]))
 181 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
 182
 183 #ifdef __APPLE__
 184
 185 typedef struct {
 186         unsigned long sp;
 187         unsigned long unused1;
 188         unsigned long lr;
 189 } MonoPPCStackFrame;
 190
 191 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 192                 gpointer r1;                                    \
 193                 __asm__ volatile("mr   %0,r1" : "=r" (r1));     \
 194                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 195                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 196         } while (0)
 197
 198 #else
 199
 200 typedef struct {
 201         unsigned long sp;
 202 #ifdef __mono_ppc64__
 203         unsigned long cr;
 204 #endif
 205         unsigned long lr;
 206 } MonoPPCStackFrame;
 207
 208 #ifdef G_COMPILER_CODEWARRIOR
 209 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 210                 register gpointer r1_var;                                       \
 211                 asm { mr r1_var, r1 };  \
 212                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 213                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 214         } while (0)
 215
 216 #else
 217 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 218                 gpointer r1;                                    \
 219                 __asm__ volatile("mr   %0,1" : "=r" (r1));      \
 220                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 221                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 222         } while (0)
 223
 224 #endif
 225 #endif
 226
 227 typedef struct {
 228         gint8 reg;
 229         gint8 size;
 230         int vtsize;
 231         int offset;
 232 } MonoPPCArgInfo;
 233
 234 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
 235 typedef struct {
 236         gpointer code;
 237         gpointer toc;
 238         gpointer env;
 239 } MonoPPCFunctionDescriptor;
 240
 241 #define PPC_FTNPTR_SIZE                 sizeof (MonoPPCFunctionDescriptor)
 242 extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code) MONO_INTERNAL;
 243 #else
 244 #define PPC_FTNPTR_SIZE                 0
 245 #define mono_ppc_create_pre_code_ftnptr(c)      c
 246 #endif
 247
 248 #if defined(__linux__)
 249         typedef struct ucontext os_ucontext;
 250
 251 #define MONO_ARCH_USE_SIGACTION 1
 252
 253 #ifdef __mono_ppc64__
 254         #define UCONTEXT_REG_Rn(ctx, n)   ((ctx)->uc_mcontext.gp_regs [(n)])
 255         #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext.fp_regs [(n)])
 256         #define UCONTEXT_REG_NIP(ctx)     ((ctx)->uc_mcontext.gp_regs [PT_NIP])
 257         #define UCONTEXT_REG_LNK(ctx)     ((ctx)->uc_mcontext.gp_regs [PT_LNK])
 258 #else
 259         #define UCONTEXT_REG_Rn(ctx, n)   ((ctx)->uc_mcontext.uc_regs->gregs [(n)])
 260         #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext.uc_regs->fpregs.fpregs [(n)])
 261         #define UCONTEXT_REG_NIP(ctx)     ((ctx)->uc_mcontext.uc_regs->gregs [PT_NIP])
 262         #define UCONTEXT_REG_LNK(ctx)     ((ctx)->uc_mcontext.uc_regs->gregs [PT_LNK])
 263 #endif
 264 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
 265 #define MONO_ARCH_USE_SIGACTION 1
 266         typedef struct __darwin_ucontext os_ucontext;
 267
 268         #define UCONTEXT_REG_Rn(ctx, n)   ((&(ctx)->uc_mcontext->__ss.__r0) [(n)])
 269         #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext->__fs.__fpregs [(n)])
 270         #define UCONTEXT_REG_NIP(ctx)     ((ctx)->uc_mcontext->__ss.__srr0)
 271         #define UCONTEXT_REG_LNK(ctx)     ((ctx)->uc_mcontext->__ss.__lr)
 272 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
 273 #define MONO_ARCH_USE_SIGACTION 1
 274         typedef struct ucontext os_ucontext;
 275
 276         #define UCONTEXT_REG_Rn(ctx, n)   ((&(ctx)->uc_mcontext->ss.r0) [(n)])
 277         #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext->fs.fpregs [(n)])
 278         #define UCONTEXT_REG_NIP(ctx)     ((ctx)->uc_mcontext->ss.srr0)
 279         #define UCONTEXT_REG_LNK(ctx)     ((ctx)->uc_mcontext->ss.lr)
 280 #elif defined(__NetBSD__)
 281 #define MONO_ARCH_USE_SIGACTION 1
 282         typedef ucontext_t os_ucontext;
 283
 284         #define UCONTEXT_REG_Rn(ctx, n)   ((ctx)->uc_mcontext.__gregs [(n)])
 285         #define UCONTEXT_REG_FPRn(ctx, n) ((ctx)->uc_mcontext.__fpregs.__fpu_regs [(n)])
 286         #define UCONTEXT_REG_NIP(ctx)     _UC_MACHINE_PC(ctx)
 287         #define UCONTEXT_REG_LNK(ctx)     ((ctx)->uc_mcontext.__gregs [_REG_LR])
 288 #else
 289 /* For other operating systems, we pull the definition from an external file */
 290 #include "mini-ppc-os.h"
 291 #endif
 292
 293 #ifdef __mono_ppc64__
 294 #define MONO_PPC_32_64_CASE(c32,c64)    c64
 295 extern void mono_ppc_emitted (guint8 *code, ssize_t length, const char *format, ...);
 296 #else
 297 #define MONO_PPC_32_64_CASE(c32,c64)    c32
 298 #endif
 299
 300 extern gboolean mono_ppc_is_direct_call_sequence (guint32 *code);
 301
 302 #endif /* __MONO_MINI_PPC_H__ */