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 <glib.h>
   7
   8 #ifdef __mono_ppc64__
   9 #define MONO_ARCH_CPU_SPEC ppc64_cpu_desc
  10 #else
  11 #define MONO_ARCH_CPU_SPEC ppcg4
  12 #endif
  13
  14 #define MONO_MAX_IREGS 32
  15 #define MONO_MAX_FREGS 32
  16
  17 #define MONO_SAVED_GREGS 19
  18 #define MONO_SAVED_FREGS 18
  19
  20 #define MONO_ARCH_FRAME_ALIGNMENT 16
  21
  22 /* fixme: align to 16byte instead of 32byte (we align to 32byte to get
  23  * reproduceable results for benchmarks */
  24 #define MONO_ARCH_CODE_ALIGNMENT 32
  25
  26 void ppc_patch (guchar *code, const guchar *target);
  27 void ppc_patch_full (guchar *code, const guchar *target, gboolean is_fd);
  28
  29 struct MonoLMF {
  30         /*
  31          * If the second lowest bit is set to 1, then this is a MonoLMFExt structure, and
  32          * the other fields are not valid.
  33          */
  34         gpointer    previous_lmf;
  35         gpointer    lmf_addr;
  36         MonoMethod *method;
  37         gulong     ebp;
  38         gulong     eip;
  39         /* Add a dummy field to force iregs to be aligned when cross compiling from x86 */
  40         gulong     dummy;
  41         mgreg_t    iregs [MONO_SAVED_GREGS]; /* 13..31 */
  42         gdouble    fregs [MONO_SAVED_FREGS]; /* 14..31 */
  43 };
  44
  45 /* we define our own structure and we'll copy the data
  46  * from sigcontext/ucontext/mach when we need it.
  47  * This also makes us save stack space and time when copying
  48  * We might also want to add an additional field to propagate
  49  * the original context from the signal handler.
  50  */
  51 typedef struct {
  52         gulong sc_ir;          // pc
  53         gulong sc_sp;          // r1
  54         mgreg_t regs [MONO_SAVED_GREGS];
  55         double fregs [MONO_SAVED_FREGS];
  56 } MonoContext;
  57
  58 typedef struct MonoCompileArch {
  59         int fp_conv_var_offset;
  60 } MonoCompileArch;
  61
  62 /*
  63  * ILP32 uses a version of the ppc64 abi with sizeof(void*)==sizeof(long)==4.
  64  * To support this, code needs to follow the following conventions:
  65  * - for the size of a pointer use sizeof (gpointer)
  66  * - for the size of a register/stack slot use SIZEOF_REGISTER.
  67  * - for variables which contain values of registers, use mgreg_t.
  68  * - for loading/saving pointers/ints, use the normal ppc_load_reg/ppc_save_reg ()
  69  *   macros.
  70  * - for loading/saving register sized quantities, use the ppc_ldr/ppc_str
  71  *   macros.
  72  * - make sure to not mix the two kinds of macros for the same memory location,
  73  *   since ppc is big endian, so a 8 byte store followed by a 4 byte load will
  74  *   load the upper 32 bit of the value.
  75  * - use OP_LOADR_MEMBASE/OP_STORER_MEMBASE to load/store register sized
  76  *   quantities.
  77  */
  78
  79 #ifdef __mono_ppc64__
  80 #define MONO_ARCH_NO_EMULATE_LONG_SHIFT_OPS
  81 #define MONO_ARCH_NO_EMULATE_LONG_MUL_OPTS
  82 #define MONO_ARCH_HAVE_ATOMIC_ADD 1
  83 #define PPC_USES_FUNCTION_DESCRIPTOR
  84
  85 #ifndef __mono_ilp32__
  86 #define MONO_ARCH_HAVE_TLS_GET 1
  87 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  88 #endif
  89
  90 #else /* must be __mono_ppc__ */
  91
  92 #if 0
  93 /* enabling this for PPC32 causes hangs in the thread/delegate tests.
  94    So disable for now. */
  95 #if defined(__linux__)
  96 #define MONO_ARCH_ENABLE_MONITOR_IL_FASTPATH 1
  97 #endif
  98 #endif
  99
 100 #define MONO_ARCH_HAVE_TLS_GET 1
 101 #define MONO_ARCH_EMULATE_FCONV_TO_I8 1
 102 #define MONO_ARCH_EMULATE_LCONV_TO_R8 1
 103 #define MONO_ARCH_EMULATE_LCONV_TO_R4 1
 104 #endif
 105
 106 #define MONO_ARCH_EMULATE_LCONV_TO_R8_UN 1
 107 #define MONO_ARCH_EMULATE_FREM 1
 108 #define MONO_ARCH_BIGMUL_INTRINS 1
 109 #define MONO_ARCH_HAVE_ATOMIC_CAS 1
 110
 111 /* Parameters used by the register allocator */
 112 #define MONO_ARCH_CALLEE_REGS ((0xff << ppc_r3) | (1 << ppc_r11) | (1 << ppc_r12))
 113 #define MONO_ARCH_CALLEE_SAVED_REGS (0xfffff << ppc_r13) /* ppc_13 - ppc_31 */
 114
 115 #if defined(__APPLE__) || defined(__mono_ppc64__)
 116 #define MONO_ARCH_CALLEE_FREGS (0x1fff << ppc_f1)
 117 #else
 118 #define MONO_ARCH_CALLEE_FREGS (0xff << ppc_f1)
 119 #endif
 120 #define MONO_ARCH_CALLEE_SAVED_FREGS (~(MONO_ARCH_CALLEE_FREGS | 1))
 121
 122 #define MONO_ARCH_USE_FPSTACK FALSE
 123 #define MONO_ARCH_FPSTACK_SIZE 0
 124
 125 #ifdef __mono_ppc64__
 126 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 127                                         ((desc) == 'g'? ppc_f1:-1))
 128 #define MONO_ARCH_INST_IS_REGPAIR(desc) FALSE
 129 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (-1)
 130 #else
 131 #define MONO_ARCH_INST_FIXED_REG(desc) (((desc) == 'a')? ppc_r3:\
 132                                         ((desc) == 'l')? ppc_r4:\
 133                                         ((desc) == 'g'? ppc_f1:-1))
 134 #define MONO_ARCH_INST_IS_REGPAIR(desc) (desc == 'l')
 135 #define MONO_ARCH_INST_REGPAIR_REG2(desc,hreg1) (desc == 'l' ? ppc_r3 : -1)
 136 #endif
 137
 138 #define MONO_ARCH_INST_SREG2_MASK(ins) (0)
 139
 140 #define MONO_ARCH_INST_IS_FLOAT(desc) ((desc == 'f') || (desc == 'g'))
 141
 142 /* deal with some of the ABI differences here */
 143 #ifdef __APPLE__
 144 #define PPC_RET_ADDR_OFFSET 8
 145 #define PPC_STACK_PARAM_OFFSET 24
 146 #define PPC_MINIMAL_STACK_SIZE 24
 147 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 148 #define PPC_FIRST_ARG_REG ppc_r3
 149 #define PPC_LAST_ARG_REG ppc_r10
 150 #define PPC_FIRST_FPARG_REG ppc_f1
 151 #define PPC_LAST_FPARG_REG ppc_f13
 152 #define PPC_PASS_STRUCTS_BY_VALUE 1
 153 #else
 154 /* Linux */
 155 #ifdef __mono_ppc64__
 156 #define PPC_RET_ADDR_OFFSET 16
 157 #define PPC_STACK_PARAM_OFFSET 48
 158 #define PPC_MINIMAL_STACK_SIZE 48
 159 #define PPC_MINIMAL_PARAM_AREA_SIZE 64
 160 #define PPC_LAST_FPARG_REG ppc_f13
 161 #define PPC_PASS_STRUCTS_BY_VALUE 1
 162 #define PPC_SMALL_RET_STRUCT_IN_REG 0
 163 #define PPC_THREAD_PTR_REG ppc_r13
 164 #else
 165 #define PPC_RET_ADDR_OFFSET 4
 166 #define PPC_STACK_PARAM_OFFSET 8
 167 #define PPC_MINIMAL_STACK_SIZE 8
 168 #define PPC_MINIMAL_PARAM_AREA_SIZE 0
 169 #define PPC_LAST_FPARG_REG ppc_f8
 170 #define PPC_PASS_STRUCTS_BY_VALUE 0
 171 #define PPC_SMALL_RET_STRUCT_IN_REG 1
 172 #define PPC_THREAD_PTR_REG ppc_r2
 173 #endif
 174 #define PPC_FIRST_ARG_REG ppc_r3
 175 #define PPC_LAST_ARG_REG ppc_r10
 176 #define PPC_FIRST_FPARG_REG ppc_f1
 177 #endif
 178
 179 #if defined(HAVE_WORKING_SIGALTSTACK) && !defined(__APPLE__)
 180 #define MONO_ARCH_SIGSEGV_ON_ALTSTACK 1
 181 #define MONO_ARCH_SIGNAL_STACK_SIZE (12 * 1024)
 182 #endif /* HAVE_WORKING_SIGALTSTACK */
 183
 184 #define MONO_ARCH_HAVE_CREATE_DELEGATE_TRAMPOLINE
 185 #define MONO_ARCH_HAVE_IMT 1
 186 #define MONO_ARCH_IMT_REG ppc_r12
 187
 188 #define MONO_ARCH_VTABLE_REG    ppc_r12
 189 #define MONO_ARCH_RGCTX_REG     ppc_r12
 190
 191 #define MONO_ARCH_NO_IOV_CHECK 1
 192 #define MONO_ARCH_HAVE_DECOMPOSE_OPTS 1
 193 #define MONO_ARCH_HAVE_DECOMPOSE_LONG_OPTS 1
 194
 195 #define MONO_ARCH_HAVE_GENERALIZED_IMT_THUNK 1
 196
 197 #define MONO_ARCH_HAVE_STATIC_RGCTX_TRAMPOLINE 1
 198 #define MONO_ARCH_HAVE_FULL_AOT_TRAMPOLINES 1
 199 #define MONO_ARCH_HAVE_XP_UNWIND 1
 200
 201 #define MONO_ARCH_GSHARED_SUPPORTED 1
 202
 203 #define MONO_ARCH_NEED_DIV_CHECK 1
 204 #define MONO_ARCH_AOT_SUPPORTED 1
 205 #define MONO_ARCH_NEED_GOT_VAR 1
 206 #if !defined(MONO_CROSS_COMPILE) && !defined(TARGET_PS3)
 207 #define MONO_ARCH_SOFT_DEBUG_SUPPORTED 1
 208 #endif
 209 #define MONO_ARCH_THIS_AS_FIRST_ARG 1
 210
 211 #define PPC_NUM_REG_ARGS (PPC_LAST_ARG_REG-PPC_FIRST_ARG_REG+1)
 212 #define PPC_NUM_REG_FPARGS (PPC_LAST_FPARG_REG-PPC_FIRST_FPARG_REG+1)
 213
 214 /* we have the stack pointer, not the base pointer in sigcontext */
 215 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (gulong)ip; } while (0);
 216 /* FIXME: should be called SET_SP */
 217 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (gulong)bp; } while (0);
 218 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_sp = (gulong)sp; } while (0);
 219
 220 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
 221 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->regs [ppc_r31-13]))
 222 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
 223
 224 #ifdef MONO_CROSS_COMPILE
 225
 226 typedef struct {
 227         unsigned long sp;
 228         unsigned long unused1;
 229         unsigned long lr;
 230 } MonoPPCStackFrame;
 231
 232 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) g_assert_not_reached ()
 233
 234 #elif defined(__APPLE__)
 235
 236 typedef struct {
 237         unsigned long sp;
 238         unsigned long unused1;
 239         unsigned long lr;
 240 } MonoPPCStackFrame;
 241
 242 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 243                 gpointer r1;                                    \
 244                 __asm__ volatile("mr   %0,r1" : "=r" (r1));     \
 245                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 246                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 247         } while (0)
 248
 249 #else
 250
 251 typedef struct {
 252         mgreg_t sp;
 253 #ifdef __mono_ppc64__
 254         mgreg_t cr;
 255 #endif
 256         mgreg_t lr;
 257 } MonoPPCStackFrame;
 258
 259 #ifdef G_COMPILER_CODEWARRIOR
 260 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 261                 register gpointer r1_var;                                       \
 262                 asm { mr r1_var, r1 };  \
 263                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 264                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 265         } while (0)
 266
 267 #else
 268 #define MONO_INIT_CONTEXT_FROM_FUNC(ctx,start_func) do {        \
 269                 gpointer r1;                                    \
 270                 __asm__ volatile("mr   %0,1" : "=r" (r1));      \
 271                 MONO_CONTEXT_SET_BP ((ctx), r1);                \
 272                 MONO_CONTEXT_SET_IP ((ctx), (start_func));      \
 273         } while (0)
 274
 275 #endif
 276 #endif
 277
 278 #define MONO_ARCH_INIT_TOP_LMF_ENTRY(lmf) do { (lmf)->ebp = -1; } while (0)
 279
 280 typedef struct {
 281         gint8 reg;
 282         gint8 size;
 283         int vtsize;
 284         int offset;
 285 } MonoPPCArgInfo;
 286
 287 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
 288 typedef struct {
 289         gpointer code;
 290         gpointer toc;
 291         gpointer env;
 292 } MonoPPCFunctionDescriptor;
 293
 294 #define PPC_FTNPTR_SIZE                 sizeof (MonoPPCFunctionDescriptor)
 295 extern guint8* mono_ppc_create_pre_code_ftnptr (guint8 *code) MONO_INTERNAL;
 296 #else
 297 #define PPC_FTNPTR_SIZE                 0
 298 #define mono_ppc_create_pre_code_ftnptr(c)      c
 299 #endif
 300
 301 #if defined(__linux__)
 302 #define MONO_ARCH_USE_SIGACTION 1
 303 #elif defined (__APPLE__) && defined (_STRUCT_MCONTEXT)
 304 #define MONO_ARCH_USE_SIGACTION 1
 305 #elif defined (__APPLE__) && !defined (_STRUCT_MCONTEXT)
 306 #define MONO_ARCH_USE_SIGACTION 1
 307 #elif defined(__NetBSD__)
 308 #define MONO_ARCH_USE_SIGACTION 1
 309 #elif defined(__FreeBSD__)
 310 #define MONO_ARCH_USE_SIGACTION 1
 311 #elif defined(MONO_CROSS_COMPILE)
 312         typedef MonoContext ucontext_t;
 313 /*      typedef struct {
 314                 int dummy;
 315         } ucontext_t;*/
 316         #define UCONTEXT_REG_Rn(ctx, n)
 317         #define UCONTEXT_REG_FPRn(ctx, n)
 318         #define UCONTEXT_REG_NIP(ctx)
 319         #define UCONTEXT_REG_LNK(ctx)
 320
 321 #else
 322 /* For other operating systems, we pull the definition from an external file */
 323 #include "mini-ppc-os.h"
 324 #endif
 325
 326 void
 327 mono_ppc_patch (guchar *code, const guchar *target) MONO_INTERNAL;
 328
 329 void
 330 mono_ppc_throw_exception (MonoObject *exc, unsigned long eip, unsigned long esp, mgreg_t *int_regs, gdouble *fp_regs, gboolean rethrow) MONO_INTERNAL;
 331
 332 #ifdef __mono_ppc64__
 333 #define MONO_PPC_32_64_CASE(c32,c64)    c64
 334 extern void mono_ppc_emitted (guint8 *code, gint64 length, const char *format, ...);
 335 #else
 336 #define MONO_PPC_32_64_CASE(c32,c64)    c32
 337 #endif
 338
 339 gboolean mono_ppc_is_direct_call_sequence (guint32 *code) MONO_INTERNAL;
 340
 341 void mono_ppc_patch_plt_entry (guint8 *code, gpointer *got, mgreg_t *regs, guint8 *addr) MONO_INTERNAL;
 342
 343 void mono_ppc_set_func_into_sigctx (void *sigctx, void *func) MONO_INTERNAL;
 344
 345 #endif /* __MONO_MINI_PPC_H__ */