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 <mono/utils/mono-sigcontext.h>
   6 #include <mono/utils/mono-context.h>
   7 #include <glib.h>
   8
   9 #ifdef __mono_ppc64__
  10 #define MONO_ARCH_CPU_SPEC ppc64_cpu_desc
  11 #else
  12 #define MONO_ARCH_CPU_SPEC ppcg4
  13 #endif
  14
  15 #define MONO_MAX_IREGS 32
  16 #define MONO_MAX_FREGS 32
  17
  18 #define MONO_SAVED_GREGS 19
  19 #define MONO_SAVED_FREGS 18
  20
  21 #define MONO_ARCH_FRAME_ALIGNMENT 16
  22
  23 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  24  * reproduceable results for benchmarks */
  25 #define MONO_ARCH_CODE_ALIGNMENT 32
  26
  27 void ppc_patch (guchar *code, const guchar *target);
  28 void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd);
  29
  30 struct MonoLMF {
  31         /*
  32          * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
  33          * the other fields are not valid.
  34          */
  35         gpointer    previous_lmf;
  36         gpointer    lmf_addr;
  37         MonoMethod *method;
  38         gulong     ebp;
  39         gulong     eip;
  40         /* Add a dummy field to force iregs to be aligned when cross compiling from x86 */
  41         gulong     dummy;
  42         mgreg_t    iregs [MONO_SAVED_GREGS]; /* 13..31 */
  43         gdouble    fregs [MONO_SAVED_FREGS]; /* 14..31 */
  44 };
  45
  46
  47 typedef struct MonoCompileArch {
  48         int fp_conv_var_offset;
  49 } MonoCompileArch;
  50
  51 /*
  52  * ILP32 uses a version of the ppc64 abi with sizeof(void*)==sizeof(long)==4.
  53  * To support this, code needs to follow the following conventions:
  54  * - for the size of a pointer use sizeof (gpointer)
  55  * - for the size of a register/stack slot use SIZEOF_REGISTER.
  56  * - for variables which contain values of registers, use mgreg_t.
  57  * - for loading/saving pointers/ints, use the normal ppc_load_reg/ppc_save_reg ()
  58  *   macros.
  59  * - for loading/saving register sized quantities, use the ppc_ldr/ppc_str
  60  *   macros.
  61  * - make sure to not mix the two kinds of macros for the same memory location,
  62  *   since ppc is big endian, so a 8 byte store followed by a 4 byte load will
  63  *   load the upper 32 bit of the value.
  64  * - use OP_LOADR_MEMBASE/OP_STORER_MEMBASE to load/store register sized
  65  *   quantities.
  66  */
  67
  68 #ifdef __mono_ppc64__
  69 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
  70 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
  71 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
  72 #define PPC_USES_FUNCTION_DESCRIPTOR
  73
  74 #ifndef __mono_ilp32__
  75 #define MONO_ARCH_HAVE_TLS_GET 1
  76 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  77 #endif
  78
  79 #else /* must be __mono_ppc__ */
  80
  81 #if 0
  82 /* enabling this for PPC32 causes hangs in the thread/delegate tests.
  83    So disable for now. */
  84 #if defined(__linux__)
  85 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  86 #endif
  87 #endif
  88
  89 #define MONO_ARCH_HAVE_TLS_GET 1
  90 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
  91 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
  92 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
  93 #endif
  94
  95 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
  96 #define MONO_ARCH_EMULATE_FREM 1
  97 #define MONO_ARCH_BIGMUL_INTRINS 1
  98 #define MONO_ARCH_HAVE_ATOMIC_CAS 1
  99
 100 /* Parameters used by the register allocator */
 101 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r11) | (1 << ppc_r12))
 102 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
 103
 104 #if defined(__APPLE__) || defined(__mono_ppc64__)
 105 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
 106 #else
 107 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
 108 #endif
 109 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
 110
 111 #define MONO_ARCH_USE_FPSTACK FALSE
 112 #define MONO_ARCH_FPSTACK_SIZE 0
 113
 114 #ifdef __mono_ppc64__
 115 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 116                                         ((desc) == 'g'? ppc_f1:-1))
 117 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
 118 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
 119 #else
 120 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 121                                         ((desc) == 'l')? ppc_r4:\
 122                                         ((desc) == 'g'? ppc_f1:-1))
 123 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
 124 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
 125 #endif
 126
 127 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 128
 129 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
 130
 131 /* deal with some of the ABI differences here */
 132 #ifdef __APPLE__
 133 #define PPC_RET_ADDR_OFFSET 8
 134 #define PPC_STACK_PARAM_OFFSET 24
 135 #define PPC_MINIMAL_STACK_SIZE 24
 136 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 137 #define PPC_FIRST_ARG_REG ppc_r3
 138 #define PPC_LAST_ARG_REG ppc_r10
 139 #define PPC_FIRST_FPARG_REG ppc_f1
 140 #define PPC_LAST_FPARG_REG ppc_f13
 141 #define PPC_PASS_STRUCTS_BY_VALUE 1
 142 #else
 143 /* Linux */
 144 #ifdef __mono_ppc64__
 145 #define PPC_RET_ADDR_OFFSET 16
 146 #define PPC_STACK_PARAM_OFFSET 48
 147 #define PPC_MINIMAL_STACK_SIZE 48
 148 #define PPC_MINIMAL_PARAM_AREA_SIZE 64
 149 #define PPC_LAST_FPARG_REG ppc_f13
 150 #define PPC_PASS_STRUCTS_BY_VALUE 1
 151 #define PPC_SMALL_RET_STRUCT_IN_REG 0
 152 #define PPC_THREAD_PTR_REG ppc_r13
 153 #else
 154 #define PPC_RET_ADDR_OFFSET 4
 155 #define PPC_STACK_PARAM_OFFSET 8
 156 #define PPC_MINIMAL_STACK_SIZE 8
 157 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 158 #define PPC_LAST_FPARG_REG ppc_f8
 159 #define PPC_PASS_STRUCTS_BY_VALUE 0
 160 #define PPC_SMALL_RET_STRUCT_IN_REG 1
 161 #define PPC_THREAD_PTR_REG ppc_r2
 162 #endif
 163 #define PPC_FIRST_ARG_REG ppc_r3
 164 #define PPC_LAST_ARG_REG ppc_r10
 165 #define PPC_FIRST_FPARG_REG ppc_f1
 166 #endif
 167
 168 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
 169 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
 170 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
 171 #endif /* HAVE_WORKING_SIGALTSTACK */
 172
 173 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
 174 #define MONO_ARCH_HAVE_IMT 1
 175 #define MONO_ARCH_IMT_REG ppc_r12
 176
 177 #define MONO_ARCH_VTABLE_REG    ppc_r12
 178 #define MONO_ARCH_RGCTX_REG     ppc_r12
 179
 180 #define MONO_ARCH_NO_IOV_CHECK 1
 181 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
 182 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
 183
 184 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
 185
 186 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
 187 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
 188 #define MONO_ARCH_HAVE_XP_UNWIND 1
 189
 190 #define MONO_ARCH_GSHARED_SUPPORTED 1
 191
 192 #define MONO_ARCH_NEED_DIV_CHECK 1
 193 #define MONO_ARCH_AOT_SUPPORTED 1
 194 #define MONO_ARCH_NEED_GOT_VAR 1
 195 #if !defined(MONO_CROSS_COMPILE) && !defined(TARGET_PS3)
 196 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
 197 #endif
 198 #define MONO_ARCH_THIS_AS_FIRST_ARG 1
 199
 200 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
 201 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
 202
 203 #ifdef MONO_CROSS_COMPILE
 204
 205 typedef struct {
 206         unsigned long sp;
 207         unsigned long unused1;
 208         unsigned long lr;
 209 } MonoPPCStackFrame;
 210
 211 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) g_assert_not_reached ()
 212
 213 #elif defined(__APPLE__)
 214
 215 typedef struct {
 216         unsigned long sp;
 217         unsigned long unused1;
 218         unsigned long lr;
 219 } MonoPPCStackFrame;
 220
 221 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 222                 gpointer r1;                                    \
 223                 __asm__ volatile("mr   %0,r1" : "=r" (r1));     \
 224                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 225                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 226         } while (0)
 227
 228 #else
 229
 230 typedef struct {
 231         mgreg_t sp;
 232 #ifdef __mono_ppc64__
 233         mgreg_t cr;
 234 #endif
 235         mgreg_t lr;
 236 } MonoPPCStackFrame;
 237
 238 #ifdef G_COMPILER_CODEWARRIOR
 239 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 240                 register gpointer r1_var;                                       \
 241                 asm { mr r1_var, r1 };  \
 242                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 243                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 244         } while (0)
 245
 246 #else
 247 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 248                 gpointer r1;                                    \
 249                 __asm__ volatile("mr   %0,1" : "=r" (r1));      \
 250                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 251                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 252         } while (0)
 253
 254 #endif
 255 #endif
 256
 257 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
 258
 259 typedef struct {
 260         gint8 reg;
 261         gint8 size;
 262         int vtsize;
 263         int offset;
 264 } MonoPPCArgInfo;
 265
 266 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
 267 typedef struct {
 268         gpointer code;
 269         gpointer toc;
 270         gpointer env;
 271 } MonoPPCFunctionDescriptor;
 272
 273 #define PPC_FTNPTR_SIZE                 sizeof (MonoPPCFunctionDescriptor)
 274 extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code) MONO_INTERNAL;
 275 #else
 276 #define PPC_FTNPTR_SIZE                 0
 277 #define mono_ppc_create_pre_code_ftnptr(c)      c
 278 #endif
 279
 280 #if defined(__linux__)
 281 #define MONO_ARCH_USE_SIGACTION 1
 282 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
 283 #define MONO_ARCH_USE_SIGACTION 1
 284 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
 285 #define MONO_ARCH_USE_SIGACTION 1
 286 #elif defined(__NetBSD__)
 287 #define MONO_ARCH_USE_SIGACTION 1
 288 #elif defined(__FreeBSD__)
 289 #define MONO_ARCH_USE_SIGACTION 1
 290 #elif defined(MONO_CROSS_COMPILE)
 291         typedef MonoContext ucontext_t;
 292 /*      typedef struct {
 293                 int dummy;
 294         } ucontext_t;*/
 295         #define UCONTEXT_REG_Rn(ctx, n)
 296         #define UCONTEXT_REG_FPRn(ctx, n)
 297         #define UCONTEXT_REG_NIP(ctx)
 298         #define UCONTEXT_REG_LNK(ctx)
 299
 300 #else
 301 /* For other operating systems, we pull the definition from an external file */
 302 #include "mini-ppc-os.h"
 303 #endif
 304
 305 gboolean
 306 mono_ppc_tail_call_supported (MonoMethodSignature *caller_sig, MonoMethodSignature *callee_sig) MONO_INTERNAL;
 307
 308 #define MONO_ARCH_USE_OP_TAIL_CALL(caller_sig, callee_sig) mono_ppc_tail_call_supported (caller_sig, callee_sig)
 309
 310 void
 311 mono_ppc_patch (guchar *code, const guchar *target) MONO_INTERNAL;
 312
 313 void
 314 mono_ppc_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, mgreg_t *int_regs, gdouble *fp_regs, gboolean rethrow) MONO_INTERNAL;
 315
 316 #ifdef __mono_ppc64__
 317 #define MONO_PPC_32_64_CASE(c32,c64)    c64
 318 extern void mono_ppc_emitted (guint8 *code, gint64 length, const char *format, ...);
 319 #else
 320 #define MONO_PPC_32_64_CASE(c32,c64)    c32
 321 #endif
 322
 323 gboolean mono_ppc_is_direct_call_sequence (guint32 *code) MONO_INTERNAL;
 324
 325 void mono_ppc_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr) MONO_INTERNAL;
 326
 327 void mono_ppc_set_func_into_sigctx (void *sigctx, void *func) MONO_INTERNAL;
 328
 329 #endif /* __MONO_MINI_PPC_H__ */