mono/utils/mono-context.h

   1 /**
   2  * \file
   3  * plat independent machine state definitions
   4  *
   5  *
   6  * Copyright (c) 2011 Novell, Inc (http://www.novell.com)
   7  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   8  */
   9
  10
  11 #ifndef __MONO_MONO_CONTEXT_H__
  12 #define __MONO_MONO_CONTEXT_H__
  13
  14 #include "mono-compiler.h"
  15 #include "mono-sigcontext.h"
  16 #include "mono-machine.h"
  17
  18 #ifdef HAVE_SIGNAL_H
  19 #include <signal.h>
  20 #endif
  21
  22 #define MONO_CONTEXT_OFFSET(field, index, field_type) \
  23     "i" (offsetof (MonoContext, field) + (index) * sizeof (field_type))
  24
  25 #if defined(__APPLE__)
  26 typedef struct __darwin_xmm_reg MonoContextSimdReg;
  27 #endif
  28
  29 /*
  30  * General notes about mono-context.
  31  * Each arch defines a MonoContext struct with all GPR regs + IP/PC.
  32  * IP/PC should be the last element of the struct (this is a mild sgen constraint we could drop if needed)
  33  * Macros to get/set BP, SP and IP are defined too.
  34  * MONO_CONTEXT_GET_CURRENT captures the current context as close as possible. One reg might be clobbered
  35  *  to hold the address of the target MonoContext. It will be a caller save one, so should not be a problem.
  36  */
  37 #if (defined(__i386__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_X86))
  38
  39 /*HACK, move this to an eventual mono-signal.c*/
  40 #if defined( __linux__) || defined(__sun) || defined(__APPLE__) || defined(__NetBSD__) || \
  41        defined(__FreeBSD__) || defined(__OpenBSD__)
  42 #if defined(HAVE_SIGACTION) || defined(__APPLE__)  // the __APPLE__ check is required for the tvos simulator, which has ucontext_t but not sigaction
  43 #define MONO_SIGNAL_USE_UCONTEXT_T 1
  44 #endif
  45 #endif
  46
  47 #if defined(__native_client__)
  48 #undef MONO_SIGNAL_USE_UCONTEXT_T
  49 #endif
  50
  51 #ifdef __HAIKU__
  52 /* sigcontext surrogate */
  53 struct sigcontext {
  54         vregs regs;
  55 };
  56 #endif
  57
  58 #ifdef HOST_WIN32
  59 /* sigcontext surrogate */
  60 struct sigcontext {
  61         unsigned int eax;
  62         unsigned int ebx;
  63         unsigned int ecx;
  64         unsigned int edx;
  65         unsigned int ebp;
  66         unsigned int esp;
  67         unsigned int esi;
  68         unsigned int edi;
  69         unsigned int eip;
  70 };
  71 #endif
  72
  73 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
  74 # define SC_EAX sc_eax
  75 # define SC_EBX sc_ebx
  76 # define SC_ECX sc_ecx
  77 # define SC_EDX sc_edx
  78 # define SC_EBP sc_ebp
  79 # define SC_EIP sc_eip
  80 # define SC_ESP sc_esp
  81 # define SC_EDI sc_edi
  82 # define SC_ESI sc_esi
  83 #elif defined(__HAIKU__)
  84 # define SC_EAX regs.eax
  85 # define SC_EBX regs.ebx
  86 # define SC_ECX regs.ecx
  87 # define SC_EDX regs.edx
  88 # define SC_EBP regs.ebp
  89 # define SC_EIP regs.eip
  90 # define SC_ESP regs.esp
  91 # define SC_EDI regs.edi
  92 # define SC_ESI regs.esi
  93 #else
  94 # define SC_EAX eax
  95 # define SC_EBX ebx
  96 # define SC_ECX ecx
  97 # define SC_EDX edx
  98 # define SC_EBP ebp
  99 # define SC_EIP eip
 100 # define SC_ESP esp
 101 # define SC_EDI edi
 102 # define SC_ESI esi
 103 #endif
 104
 105 #include <mono/arch/x86/x86-codegen.h>
 106
 107 typedef struct {
 108         mgreg_t eax;
 109         mgreg_t ebx;
 110         mgreg_t ecx;
 111         mgreg_t edx;
 112         mgreg_t ebp;
 113         mgreg_t esp;
 114         mgreg_t esi;
 115         mgreg_t edi;
 116         mgreg_t eip;
 117 #ifdef __APPLE__
 118     MonoContextSimdReg fregs [X86_XMM_NREG];
 119 #endif
 120 } MonoContext;
 121
 122 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (mgreg_t)(ip); } while (0);
 123 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (mgreg_t)(bp); } while (0);
 124 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (mgreg_t)(sp); } while (0);
 125
 126 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->eip))
 127 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->ebp))
 128 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->esp))
 129
 130 /*We set EAX to zero since we are clobering it anyway*/
 131 #ifdef _MSC_VER
 132 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 133         void *_ptr = &(ctx);                                                                                            \
 134         __asm {                                                                                                                         \
 135          __asm mov eax, _ptr                                                                                            \
 136          __asm mov [eax+0x00], eax                                                                                      \
 137          __asm mov [eax+0x04], ebx                                                                                      \
 138          __asm mov [eax+0x08], ecx                                                                                      \
 139          __asm mov [eax+0x0c], edx                                                                                      \
 140          __asm mov [eax+0x10], ebp                                                                                      \
 141          __asm mov [eax+0x14], esp                                                                                      \
 142          __asm mov [eax+0x18], esi                                                                                      \
 143          __asm mov [eax+0x1c], edi                                                                                      \
 144          __asm call __mono_context_get_ip                                                                       \
 145          __asm __mono_context_get_ip:                                                                           \
 146          __asm pop dword ptr [eax+0x20]                                                                         \
 147                  }                                                                                                                              \
 148         } while (0)
 149 #else
 150
 151 #define MONO_CONTEXT_GET_CURRENT_GREGS(ctx) \
 152         __asm__ __volatile__(   \
 153         "movl $0x0, %c[eax](%0)\n" \
 154         "mov %%ebx, %c[ebx](%0)\n" \
 155         "mov %%ecx, %c[ecx](%0)\n" \
 156         "mov %%edx, %c[edx](%0)\n" \
 157         "mov %%ebp, %c[ebp](%0)\n" \
 158         "mov %%esp, %c[esp](%0)\n" \
 159         "mov %%esi, %c[esi](%0)\n" \
 160         "mov %%edi, %c[edi](%0)\n" \
 161         "call 1f\n"     \
 162         "1: pop 0x20(%0)\n"     \
 163         :       \
 164         : "a" (&(ctx)), \
 165                 [eax] MONO_CONTEXT_OFFSET (eax, 0, mgreg_t), \
 166                 [ebx] MONO_CONTEXT_OFFSET (ebx, 0, mgreg_t), \
 167                 [ecx] MONO_CONTEXT_OFFSET (ecx, 0, mgreg_t), \
 168                 [edx] MONO_CONTEXT_OFFSET (edx, 0, mgreg_t), \
 169                 [ebp] MONO_CONTEXT_OFFSET (ebp, 0, mgreg_t), \
 170                 [esp] MONO_CONTEXT_OFFSET (esp, 0, mgreg_t), \
 171                 [esi] MONO_CONTEXT_OFFSET (esi, 0, mgreg_t), \
 172                 [edi] MONO_CONTEXT_OFFSET (edi, 0, mgreg_t) \
 173         : "memory")
 174
 175 #ifdef UCONTEXT_REG_XMM
 176 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx) \
 177         do { \
 178                 __asm__ __volatile__ ( \
 179                         "movups %%xmm0, %c[xmm0](%0)\n" \
 180                         "movups %%xmm1, %c[xmm1](%0)\n" \
 181                         "movups %%xmm2, %c[xmm2](%0)\n" \
 182                         "movups %%xmm3, %c[xmm3](%0)\n" \
 183                         "movups %%xmm4, %c[xmm4](%0)\n" \
 184                         "movups %%xmm5, %c[xmm5](%0)\n" \
 185                         "movups %%xmm6, %c[xmm6](%0)\n" \
 186                         "movups %%xmm7, %c[xmm7](%0)\n" \
 187                         : \
 188                         : "a" (&(ctx)), \
 189                                 [xmm0] MONO_CONTEXT_OFFSET (fregs, X86_XMM0, MonoContextSimdReg), \
 190                                 [xmm1] MONO_CONTEXT_OFFSET (fregs, X86_XMM1, MonoContextSimdReg), \
 191                                 [xmm2] MONO_CONTEXT_OFFSET (fregs, X86_XMM2, MonoContextSimdReg), \
 192                                 [xmm3] MONO_CONTEXT_OFFSET (fregs, X86_XMM3, MonoContextSimdReg), \
 193                                 [xmm4] MONO_CONTEXT_OFFSET (fregs, X86_XMM4, MonoContextSimdReg), \
 194                                 [xmm5] MONO_CONTEXT_OFFSET (fregs, X86_XMM5, MonoContextSimdReg), \
 195                                 [xmm6] MONO_CONTEXT_OFFSET (fregs, X86_XMM6, MonoContextSimdReg), \
 196                                 [xmm7] MONO_CONTEXT_OFFSET (fregs, X86_XMM7, MonoContextSimdReg)); \
 197         } while (0)
 198 #else
 199 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx)
 200 #endif
 201
 202 #define MONO_CONTEXT_GET_CURRENT(ctx) \
 203     do {        \
 204                 MONO_CONTEXT_GET_CURRENT_GREGS(ctx);    \
 205                 MONO_CONTEXT_GET_CURRENT_FREGS(ctx);    \
 206         } while (0)
 207
 208 #endif
 209
 210 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 211
 212 #elif (defined(__x86_64__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_AMD64)) /* defined(__i386__) */
 213
 214 #include <mono/arch/amd64/amd64-codegen.h>
 215
 216 #if !defined( HOST_WIN32 ) && !defined(__native_client__) && !defined(__native_client_codegen__)
 217
 218 #if defined(HAVE_SIGACTION) || defined(__APPLE__)  // the __APPLE__ check is required for the tvos simulator, which has ucontext_t but not sigaction
 219 #define MONO_SIGNAL_USE_UCONTEXT_T 1
 220 #endif
 221
 222 #endif
 223
 224 typedef struct {
 225         mgreg_t gregs [AMD64_NREG];
 226 #ifdef __APPLE__
 227         MonoContextSimdReg fregs [AMD64_XMM_NREG];
 228 #else
 229         double fregs [AMD64_XMM_NREG];
 230 #endif
 231 } MonoContext;
 232
 233 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->gregs [AMD64_RIP] = (mgreg_t)(ip); } while (0);
 234 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->gregs [AMD64_RBP] = (mgreg_t)(bp); } while (0);
 235 #define MONO_CONTEXT_SET_SP(ctx,esp) do { (ctx)->gregs [AMD64_RSP] = (mgreg_t)(esp); } while (0);
 236
 237 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->gregs [AMD64_RIP]))
 238 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->gregs [AMD64_RBP]))
 239 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->gregs [AMD64_RSP]))
 240
 241 #if defined (HOST_WIN32) && !defined(__GNUC__)
 242 /* msvc doesn't support inline assembly, so have to use a separate .asm file */
 243 extern void mono_context_get_current (void *);
 244 #define MONO_CONTEXT_GET_CURRENT(ctx) do { mono_context_get_current((void*)&(ctx)); } while (0)
 245
 246 #elif defined(__native_client__)
 247 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 248         __asm__ __volatile__(   \
 249                 "movq $0x0,  %%nacl:0x00(%%r15, %0, 1)\n"       \
 250                 "movq %%rcx, %%nacl:0x08(%%r15, %0, 1)\n"       \
 251                 "movq %%rdx, %%nacl:0x10(%%r15, %0, 1)\n"       \
 252                 "movq %%rbx, %%nacl:0x18(%%r15, %0, 1)\n"       \
 253                 "movq %%rsp, %%nacl:0x20(%%r15, %0, 1)\n"       \
 254                 "movq %%rbp, %%nacl:0x28(%%r15, %0, 1)\n"       \
 255                 "movq %%rsi, %%nacl:0x30(%%r15, %0, 1)\n"       \
 256                 "movq %%rdi, %%nacl:0x38(%%r15, %0, 1)\n"       \
 257                 "movq %%r8,  %%nacl:0x40(%%r15, %0, 1)\n"       \
 258                 "movq %%r9,  %%nacl:0x48(%%r15, %0, 1)\n"       \
 259                 "movq %%r10, %%nacl:0x50(%%r15, %0, 1)\n"       \
 260                 "movq %%r11, %%nacl:0x58(%%r15, %0, 1)\n"       \
 261                 "movq %%r12, %%nacl:0x60(%%r15, %0, 1)\n"       \
 262                 "movq %%r13, %%nacl:0x68(%%r15, %0, 1)\n"       \
 263                 "movq %%r14, %%nacl:0x70(%%r15, %0, 1)\n"       \
 264                 "movq %%r15, %%nacl:0x78(%%r15, %0, 1)\n"       \
 265                 "leaq (%%rip), %%rdx\n" \
 266                 "movq %%rdx, %%nacl:0x80(%%r15, %0, 1)\n"       \
 267                 :       \
 268                 : "a" ((int64_t)&(ctx)) \
 269                 : "rdx", "memory")
 270 #else
 271
 272 #define MONO_CONTEXT_GET_CURRENT_GREGS(ctx) \
 273         do { \
 274                 __asm__ __volatile__(   \
 275                         "movq $0x0,  %c[rax](%0)\n"     \
 276                         "movq %%rcx, %c[rcx](%0)\n"     \
 277                         "movq %%rdx, %c[rdx](%0)\n"     \
 278                         "movq %%rbx, %c[rbx](%0)\n"     \
 279                         "movq %%rsp, %c[rsp](%0)\n"     \
 280                         "movq %%rbp, %c[rbp](%0)\n"     \
 281                         "movq %%rsi, %c[rsi](%0)\n"     \
 282                         "movq %%rdi, %c[rdi](%0)\n"     \
 283                         "movq %%r8,  %c[r8](%0)\n"      \
 284                         "movq %%r9,  %c[r9](%0)\n"      \
 285                         "movq %%r10, %c[r10](%0)\n"     \
 286                         "movq %%r11, %c[r11](%0)\n"     \
 287                         "movq %%r12, %c[r12](%0)\n"     \
 288                         "movq %%r13, %c[r13](%0)\n"     \
 289                         "movq %%r14, %c[r14](%0)\n"     \
 290                         "movq %%r15, %c[r15](%0)\n"     \
 291                         /* "leaq (%%rip), %%rdx\n" is not understood by icc */  \
 292                         ".byte 0x48, 0x8d, 0x15, 0x00, 0x00, 0x00, 0x00\n" \
 293                         "movq %%rdx, %c[rip](%0)\n"     \
 294                         :       \
 295                         : "a" (&(ctx)), \
 296                                 [rax] MONO_CONTEXT_OFFSET (gregs, AMD64_RAX, mgreg_t),  \
 297                                 [rcx] MONO_CONTEXT_OFFSET (gregs, AMD64_RCX, mgreg_t),  \
 298                                 [rdx] MONO_CONTEXT_OFFSET (gregs, AMD64_RDX, mgreg_t),  \
 299                                 [rbx] MONO_CONTEXT_OFFSET (gregs, AMD64_RBX, mgreg_t),  \
 300                                 [rsp] MONO_CONTEXT_OFFSET (gregs, AMD64_RSP, mgreg_t),  \
 301                                 [rbp] MONO_CONTEXT_OFFSET (gregs, AMD64_RBP, mgreg_t),  \
 302                                 [rsi] MONO_CONTEXT_OFFSET (gregs, AMD64_RSI, mgreg_t),  \
 303                                 [rdi] MONO_CONTEXT_OFFSET (gregs, AMD64_RDI, mgreg_t),  \
 304                                 [r8] MONO_CONTEXT_OFFSET (gregs, AMD64_R8, mgreg_t), \
 305                                 [r9] MONO_CONTEXT_OFFSET (gregs, AMD64_R9, mgreg_t), \
 306                                 [r10] MONO_CONTEXT_OFFSET (gregs, AMD64_R10, mgreg_t),  \
 307                                 [r11] MONO_CONTEXT_OFFSET (gregs, AMD64_R11, mgreg_t),  \
 308                                 [r12] MONO_CONTEXT_OFFSET (gregs, AMD64_R12, mgreg_t),  \
 309                                 [r13] MONO_CONTEXT_OFFSET (gregs, AMD64_R13, mgreg_t),  \
 310                                 [r14] MONO_CONTEXT_OFFSET (gregs, AMD64_R14, mgreg_t),  \
 311                                 [r15] MONO_CONTEXT_OFFSET (gregs, AMD64_R15, mgreg_t),  \
 312                                 [rip] MONO_CONTEXT_OFFSET (gregs, AMD64_RIP, mgreg_t)   \
 313                         : "rdx", "memory");     \
 314         } while (0)
 315
 316 #ifdef UCONTEXT_REG_XMM
 317 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx) \
 318         do { \
 319                 __asm__ __volatile__ ( \
 320                         "movups %%xmm0, %c[xmm0](%0)\n" \
 321                         "movups %%xmm1, %c[xmm1](%0)\n" \
 322                         "movups %%xmm2, %c[xmm2](%0)\n" \
 323                         "movups %%xmm3, %c[xmm3](%0)\n" \
 324                         "movups %%xmm4, %c[xmm4](%0)\n" \
 325                         "movups %%xmm5, %c[xmm5](%0)\n" \
 326                         "movups %%xmm6, %c[xmm6](%0)\n" \
 327                         "movups %%xmm7, %c[xmm7](%0)\n" \
 328                         "movups %%xmm8, %c[xmm8](%0)\n" \
 329                         "movups %%xmm9, %c[xmm9](%0)\n" \
 330                         "movups %%xmm10, %c[xmm10](%0)\n"       \
 331                         "movups %%xmm11, %c[xmm11](%0)\n"       \
 332                         "movups %%xmm12, %c[xmm12](%0)\n"       \
 333                         "movups %%xmm12, %c[xmm12](%0)\n"       \
 334                         "movups %%xmm14, %c[xmm14](%0)\n"       \
 335                         "movups %%xmm15, %c[xmm15](%0)\n"       \
 336                         : \
 337                         : "a" (&(ctx)), \
 338                                 [xmm0] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM0, MonoContextSimdReg), \
 339                                 [xmm1] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM1, MonoContextSimdReg), \
 340                                 [xmm2] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM2, MonoContextSimdReg), \
 341                                 [xmm3] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM3, MonoContextSimdReg), \
 342                                 [xmm4] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM4, MonoContextSimdReg), \
 343                                 [xmm5] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM5, MonoContextSimdReg), \
 344                                 [xmm6] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM6, MonoContextSimdReg), \
 345                                 [xmm7] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM7, MonoContextSimdReg), \
 346                                 [xmm8] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM8, MonoContextSimdReg), \
 347                                 [xmm9] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM9, MonoContextSimdReg), \
 348                                 [xmm10] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM10, MonoContextSimdReg), \
 349                                 [xmm11] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM11, MonoContextSimdReg), \
 350                                 [xmm12] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM12, MonoContextSimdReg), \
 351                                 [xmm13] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM13, MonoContextSimdReg), \
 352                                 [xmm14] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM14, MonoContextSimdReg), \
 353                                 [xmm15] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM15, MonoContextSimdReg));  \
 354         } while (0)
 355 #else
 356 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx)
 357 #endif
 358
 359 #define MONO_CONTEXT_GET_CURRENT(ctx) \
 360     do {        \
 361                 MONO_CONTEXT_GET_CURRENT_GREGS(ctx);    \
 362                 MONO_CONTEXT_GET_CURRENT_FREGS(ctx);    \
 363         } while (0)
 364 #endif
 365
 366 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 367
 368 #elif (defined(__arm__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_ARM)) /* defined(__x86_64__) */
 369
 370 #include <mono/arch/arm/arm-codegen.h>
 371
 372 typedef struct {
 373         mgreg_t pc;
 374         mgreg_t regs [16];
 375         double fregs [16];
 376         mgreg_t cpsr;
 377 } MonoContext;
 378
 379 /* we have the stack pointer, not the base pointer in sigcontext */
 380 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->pc = (mgreg_t)ip; } while (0);
 381 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->regs [ARMREG_FP] = (mgreg_t)bp; } while (0);
 382 #define MONO_CONTEXT_SET_SP(ctx,bp) do { (ctx)->regs [ARMREG_SP] = (mgreg_t)bp; } while (0);
 383
 384 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->pc))
 385 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->regs [ARMREG_FP]))
 386 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->regs [ARMREG_SP]))
 387
 388 #if defined(HOST_WATCHOS)
 389
 390 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 391         gpointer _dummy; \
 392     ctx.regs [ARMREG_SP] = &_dummy; \
 393 } while (0);
 394
 395 #else
 396
 397 #define MONO_CONTEXT_GET_CURRENT(ctx)   do {    \
 398         __asm__ __volatile__(                   \
 399                 "push {r0}\n"                           \
 400                 "push {r1}\n"                           \
 401                 "mov r0, %0\n"                          \
 402                 "ldr r1, [sp, #4]\n"            \
 403                 "str r1, [r0], #4\n"            \
 404                 "ldr r1, [sp, #0]\n"            \
 405                 "str r1, [r0], #4\n"            \
 406                 "stmia r0!, {r2-r12}\n"         \
 407                 "str sp, [r0], #4\n"            \
 408                 "str lr, [r0], #4\n"            \
 409                 "mov r1, pc\n"                          \
 410                 "str r1, [r0], #4\n"            \
 411                 "pop {r1}\n"                            \
 412                 "pop {r0}\n"                            \
 413                 :                                                       \
 414                 : "r" (&ctx.regs)                       \
 415                 : "memory"                                      \
 416         );                                                              \
 417         ctx.pc = ctx.regs [15];                 \
 418 } while (0)
 419
 420 #endif
 421
 422 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 423
 424 #elif (defined(__aarch64__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_ARM64))
 425
 426 #include <mono/arch/arm64/arm64-codegen.h>
 427
 428 typedef struct {
 429         mgreg_t regs [32];
 430         double fregs [32];
 431         mgreg_t pc;
 432         /*
 433          * fregs might not be initialized if this context was created from a
 434          * ucontext.
 435          */
 436         mgreg_t has_fregs;
 437 } MonoContext;
 438
 439 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->pc = (mgreg_t)ip; } while (0)
 440 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->regs [ARMREG_FP] = (mgreg_t)bp; } while (0);
 441 #define MONO_CONTEXT_SET_SP(ctx,bp) do { (ctx)->regs [ARMREG_SP] = (mgreg_t)bp; } while (0);
 442
 443 #define MONO_CONTEXT_GET_IP(ctx) (gpointer)((ctx)->pc)
 444 #define MONO_CONTEXT_GET_BP(ctx) (gpointer)((ctx)->regs [ARMREG_FP])
 445 #define MONO_CONTEXT_GET_SP(ctx) (gpointer)((ctx)->regs [ARMREG_SP])
 446
 447 #if defined (HOST_APPLETVOS)
 448
 449 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 450         arm_unified_thread_state_t thread_state;        \
 451         int state_flavor = ARM_UNIFIED_THREAD_STATE;    \
 452         unsigned state_count = ARM_UNIFIED_THREAD_STATE_COUNT;  \
 453         thread_port_t self = mach_thread_self ();       \
 454         kern_return_t ret = thread_get_state (self, state_flavor, (thread_state_t) &thread_state, &state_count);        \
 455         g_assert (ret == 0);    \
 456         mono_mach_arch_thread_states_to_mono_context ((thread_state_t)&thread_state, (thread_state_t)NULL, &ctx); \
 457         mach_port_deallocate (current_task (), self);   \
 458 } while (0);
 459
 460 #else
 461
 462 #define MONO_CONTEXT_GET_CURRENT(ctx)   do {    \
 463         __asm__ __volatile__(                   \
 464                 "mov x16, %0\n" \
 465                 "stp x0, x1, [x16], #16\n"      \
 466                 "stp x2, x3, [x16], #16\n"      \
 467                 "stp x4, x5, [x16], #16\n"      \
 468                 "stp x6, x7, [x16], #16\n"      \
 469                 "stp x8, x9, [x16], #16\n"      \
 470                 "stp x10, x11, [x16], #16\n"    \
 471                 "stp x12, x13, [x16], #16\n"    \
 472                 "stp x14, x15, [x16], #16\n"    \
 473                 "stp xzr, x17, [x16], #16\n"    \
 474                 "stp x18, x19, [x16], #16\n"    \
 475                 "stp x20, x21, [x16], #16\n"    \
 476                 "stp x22, x23, [x16], #16\n"    \
 477                 "stp x24, x25, [x16], #16\n"    \
 478                 "stp x26, x27, [x16], #16\n"    \
 479                 "stp x28, x29, [x16], #16\n"    \
 480                 "stp x30, xzr, [x16], #8\n"     \
 481                 "mov x30, sp\n"                         \
 482                 "str x30, [x16], #8\n"          \
 483                 "stp d0, d1, [x16], #16\n"      \
 484                 "stp d2, d3, [x16], #16\n"      \
 485                 "stp d4, d5, [x16], #16\n"      \
 486                 "stp d6, d7, [x16], #16\n"      \
 487                 "stp d8, d9, [x16], #16\n"      \
 488                 "stp d10, d11, [x16], #16\n"    \
 489                 "stp d12, d13, [x16], #16\n"    \
 490                 "stp d14, d15, [x16], #16\n"    \
 491                 "stp d16, d17, [x16], #16\n"    \
 492                 "stp d18, d19, [x16], #16\n"    \
 493                 "stp d20, d21, [x16], #16\n"    \
 494                 "stp d22, d23, [x16], #16\n"    \
 495                 "stp d24, d25, [x16], #16\n"    \
 496                 "stp d26, d27, [x16], #16\n"    \
 497                 "stp d28, d29, [x16], #16\n"    \
 498                 "stp d30, d31, [x16], #16\n"    \
 499                 :                                                       \
 500                 : "r" (&ctx.regs)                       \
 501                 : "x16", "x30", "memory"                \
 502         );                                                              \
 503         __asm__ __volatile__( \
 504                 "adr %0, L0%=\n" \
 505                 "L0%=:\n"       \
 506                 : "=r" (ctx.pc)         \
 507                 :                                       \
 508                 : "memory"                       \
 509         ); \
 510 } while (0)
 511
 512 #endif
 513
 514 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 515
 516 #elif defined(__mono_ppc__) /* defined(__arm__) */
 517
 518 /* we define our own structure and we'll copy the data
 519  * from sigcontext/ucontext/mach when we need it.
 520  * This also makes us save stack space and time when copying
 521  * We might also want to add an additional field to propagate
 522  * the original context from the signal handler.
 523  */
 524 #ifdef __mono_ppc64__
 525
 526 typedef struct {
 527         gulong sc_ir;          // pc
 528         gulong sc_sp;          // r1
 529         mgreg_t regs [32];
 530         double fregs [32];
 531 } MonoContext;
 532
 533 /* we have the stack pointer, not the base pointer in sigcontext */
 534 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (gulong)ip; } while (0);
 535 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (gulong)bp; } while (0);
 536 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_sp = (gulong)sp; } while (0);
 537
 538 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
 539 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->regs [ppc_r31]))
 540 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
 541
 542 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 543         __asm__ __volatile__(   \
 544                 "std 0, 0(%0)\n"        \
 545                 "std 1, 8(%0)\n"        \
 546                 "std 0, 8*0+16(%0)\n"   \
 547                 "std 1, 8*1+16(%0)\n"   \
 548                 "std 2, 8*2+16(%0)\n"   \
 549                 "std 3, 8*3+16(%0)\n"   \
 550                 "std 4, 8*4+16(%0)\n"   \
 551                 "std 5, 8*5+16(%0)\n"   \
 552                 "std 6, 8*6+16(%0)\n"   \
 553                 "std 7, 8*7+16(%0)\n"   \
 554                 "std 8, 8*8+16(%0)\n"   \
 555                 "std 9, 8*9+16(%0)\n"   \
 556                 "std 10, 8*10+16(%0)\n" \
 557                 "std 11, 8*11+16(%0)\n" \
 558                 "std 12, 8*12+16(%0)\n" \
 559                 "std 13, 8*13+16(%0)\n" \
 560                 "std 14, 8*14+16(%0)\n" \
 561                 "std 15, 8*15+16(%0)\n" \
 562                 "std 16, 8*16+16(%0)\n" \
 563                 "std 17, 8*17+16(%0)\n" \
 564                 "std 18, 8*18+16(%0)\n" \
 565                 "std 19, 8*19+16(%0)\n" \
 566                 "std 20, 8*20+16(%0)\n" \
 567                 "std 21, 8*21+16(%0)\n" \
 568                 "std 22, 8*22+16(%0)\n" \
 569                 "std 23, 8*23+16(%0)\n" \
 570                 "std 24, 8*24+16(%0)\n" \
 571                 "std 25, 8*25+16(%0)\n" \
 572                 "std 26, 8*26+16(%0)\n" \
 573                 "std 27, 8*27+16(%0)\n" \
 574                 "std 28, 8*28+16(%0)\n" \
 575                 "std 29, 8*29+16(%0)\n" \
 576                 "std 30, 8*30+16(%0)\n" \
 577                 "std 31, 8*31+16(%0)\n" \
 578                 "stfd 0, 8*0+8*32+16(%0)\n"     \
 579                 "stfd 1, 8*1+8*32+16(%0)\n"     \
 580                 "stfd 2, 8*2+8*32+16(%0)\n"     \
 581                 "stfd 3, 8*3+8*32+16(%0)\n"     \
 582                 "stfd 4, 8*4+8*32+16(%0)\n"     \
 583                 "stfd 5, 8*5+8*32+16(%0)\n"     \
 584                 "stfd 6, 8*6+8*32+16(%0)\n"     \
 585                 "stfd 7, 8*7+8*32+16(%0)\n"     \
 586                 "stfd 8, 8*8+8*32+16(%0)\n"     \
 587                 "stfd 9, 8*9+8*32+16(%0)\n"     \
 588                 "stfd 10, 8*10+8*32+16(%0)\n"   \
 589                 "stfd 11, 8*11+8*32+16(%0)\n"   \
 590                 "stfd 12, 8*12+8*32+16(%0)\n"   \
 591                 "stfd 13, 8*13+8*32+16(%0)\n"   \
 592                 "stfd 14, 8*14+8*32+16(%0)\n"   \
 593                 "stfd 15, 8*15+8*32+16(%0)\n"   \
 594                 "stfd 16, 8*16+8*32+16(%0)\n"   \
 595                 "stfd 17, 8*17+8*32+16(%0)\n"   \
 596                 "stfd 18, 8*18+8*32+16(%0)\n"   \
 597                 "stfd 19, 8*19+8*32+16(%0)\n"   \
 598                 "stfd 20, 8*20+8*32+16(%0)\n"   \
 599                 "stfd 21, 8*21+8*32+16(%0)\n"   \
 600                 "stfd 22, 8*22+8*32+16(%0)\n"   \
 601                 "stfd 23, 8*23+8*32+16(%0)\n"   \
 602                 "stfd 24, 8*24+8*32+16(%0)\n"   \
 603                 "stfd 25, 8*25+8*32+16(%0)\n"   \
 604                 "stfd 26, 8*26+8*32+16(%0)\n"   \
 605                 "stfd 27, 8*27+8*32+16(%0)\n"   \
 606                 "stfd 28, 8*28+8*32+16(%0)\n"   \
 607                 "stfd 29, 8*29+8*32+16(%0)\n"   \
 608                 "stfd 30, 8*30+8*32+16(%0)\n"   \
 609                 "stfd 31, 8*31+8*32+16(%0)\n"   \
 610                 : : "r" (&(ctx))        \
 611                 : "memory"                      \
 612         )
 613
 614 #else /* !defined(__mono_ppc64__) */
 615
 616 typedef struct {
 617         mgreg_t sc_ir;          // pc
 618         mgreg_t sc_sp;          // r1
 619         mgreg_t regs [32];
 620         double fregs [32];
 621 } MonoContext;
 622
 623 /* we have the stack pointer, not the base pointer in sigcontext */
 624 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (mgreg_t)ip; } while (0);
 625 /* FIXME: should be called SET_SP */
 626 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (mgreg_t)bp; } while (0);
 627 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_sp = (mgreg_t)sp; } while (0);
 628
 629 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_ir))
 630 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->regs [ppc_r31]))
 631 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_sp))
 632
 633 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 634         __asm__ __volatile__(   \
 635                 "stw 0, 0(%0)\n"        \
 636                 "stw 1, 4(%0)\n"        \
 637                 "stw 0, 4*0+8(%0)\n"    \
 638                 "stw 1, 4*1+8(%0)\n"    \
 639                 "stw 2, 4*2+8(%0)\n"    \
 640                 "stw 3, 4*3+8(%0)\n"    \
 641                 "stw 4, 4*4+8(%0)\n"    \
 642                 "stw 5, 4*5+8(%0)\n"    \
 643                 "stw 6, 4*6+8(%0)\n"    \
 644                 "stw 7, 4*7+8(%0)\n"    \
 645                 "stw 8, 4*8+8(%0)\n"    \
 646                 "stw 9, 4*9+8(%0)\n"    \
 647                 "stw 10, 4*10+8(%0)\n"  \
 648                 "stw 11, 4*11+8(%0)\n"  \
 649                 "stw 12, 4*12+8(%0)\n"  \
 650                 "stw 13, 4*13+8(%0)\n"  \
 651                 "stw 14, 4*14+8(%0)\n"  \
 652                 "stw 15, 4*15+8(%0)\n"  \
 653                 "stw 16, 4*16+8(%0)\n"  \
 654                 "stw 17, 4*17+8(%0)\n"  \
 655                 "stw 18, 4*18+8(%0)\n"  \
 656                 "stw 19, 4*19+8(%0)\n"  \
 657                 "stw 20, 4*20+8(%0)\n"  \
 658                 "stw 21, 4*21+8(%0)\n"  \
 659                 "stw 22, 4*22+8(%0)\n"  \
 660                 "stw 23, 4*23+8(%0)\n"  \
 661                 "stw 24, 4*24+8(%0)\n"  \
 662                 "stw 25, 4*25+8(%0)\n"  \
 663                 "stw 26, 4*26+8(%0)\n"  \
 664                 "stw 27, 4*27+8(%0)\n"  \
 665                 "stw 28, 4*28+8(%0)\n"  \
 666                 "stw 29, 4*29+8(%0)\n"  \
 667                 "stw 30, 4*30+8(%0)\n"  \
 668                 "stw 31, 4*31+8(%0)\n"  \
 669                 "stfd 0, 8*0+4*32+8(%0)\n"      \
 670                 "stfd 1, 8*1+4*32+8(%0)\n"      \
 671                 "stfd 2, 8*2+4*32+8(%0)\n"      \
 672                 "stfd 3, 8*3+4*32+8(%0)\n"      \
 673                 "stfd 4, 8*4+4*32+8(%0)\n"      \
 674                 "stfd 5, 8*5+4*32+8(%0)\n"      \
 675                 "stfd 6, 8*6+4*32+8(%0)\n"      \
 676                 "stfd 7, 8*7+4*32+8(%0)\n"      \
 677                 "stfd 8, 8*8+4*32+8(%0)\n"      \
 678                 "stfd 9, 8*9+4*32+8(%0)\n"      \
 679                 "stfd 10, 8*10+4*32+8(%0)\n"    \
 680                 "stfd 11, 8*11+4*32+8(%0)\n"    \
 681                 "stfd 12, 8*12+4*32+8(%0)\n"    \
 682                 "stfd 13, 8*13+4*32+8(%0)\n"    \
 683                 "stfd 14, 8*14+4*32+8(%0)\n"    \
 684                 "stfd 15, 8*15+4*32+8(%0)\n"    \
 685                 "stfd 16, 8*16+4*32+8(%0)\n"    \
 686                 "stfd 17, 8*17+4*32+8(%0)\n"    \
 687                 "stfd 18, 8*18+4*32+8(%0)\n"    \
 688                 "stfd 19, 8*19+4*32+8(%0)\n"    \
 689                 "stfd 20, 8*20+4*32+8(%0)\n"    \
 690                 "stfd 21, 8*21+4*32+8(%0)\n"    \
 691                 "stfd 22, 8*22+4*32+8(%0)\n"    \
 692                 "stfd 23, 8*23+4*32+8(%0)\n"    \
 693                 "stfd 24, 8*24+4*32+8(%0)\n"    \
 694                 "stfd 25, 8*25+4*32+8(%0)\n"    \
 695                 "stfd 26, 8*26+4*32+8(%0)\n"    \
 696                 "stfd 27, 8*27+4*32+8(%0)\n"    \
 697                 "stfd 28, 8*28+4*32+8(%0)\n"    \
 698                 "stfd 29, 8*29+4*32+8(%0)\n"    \
 699                 "stfd 30, 8*30+4*32+8(%0)\n"    \
 700                 "stfd 31, 8*31+4*32+8(%0)\n"    \
 701                 : : "r" (&(ctx))        \
 702                 : "memory", "r0"        \
 703         )
 704
 705 #endif
 706
 707 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 708
 709 #elif defined(__sparc__) || defined(sparc) /* defined(__mono_ppc__) */
 710
 711 typedef struct MonoContext {
 712         mgreg_t regs [15];
 713         guint8 *ip;
 714         gpointer *sp;
 715         gpointer *fp;
 716 } MonoContext;
 717
 718 #define MONO_CONTEXT_SET_IP(ctx,eip) do { (ctx)->ip = (gpointer)(eip); } while (0);
 719 #define MONO_CONTEXT_SET_BP(ctx,ebp) do { (ctx)->fp = (gpointer*)(ebp); } while (0);
 720 #define MONO_CONTEXT_SET_SP(ctx,esp) do { (ctx)->sp = (gpointer*)(esp); } while (0);
 721
 722 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->ip))
 723 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->fp))
 724 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sp))
 725
 726 #ifdef __sparcv9
 727 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 728         __asm__ __volatile__(   \
 729                 "st %%g1,[%0]\n"        \
 730                 "st %%g2,[%0+0x08]\n"   \
 731                 "st %%g3,[%0+0x10]\n"   \
 732                 "st %%g4,[%0+0x18]\n"   \
 733                 "st %%g5,[%0+0x20]\n"   \
 734                 "st %%g6,[%0+0x28]\n"   \
 735                 "st %%g7,[%0+0x30]\n"   \
 736                 "st %%o0,[%0+0x38]\n"   \
 737                 "st %%o1,[%0+0x40]\n"   \
 738                 "st %%o2,[%0+0x48]\n"   \
 739                 "st %%o3,[%0+0x50]\n"   \
 740                 "st %%o4,[%0+0x58]\n"   \
 741                 "st %%o5,[%0+0x60]\n"   \
 742                 "st %%o6,[%0+0x68]\n"   \
 743                 "st %%o7,[%0+0x70]\n"   \
 744                 :                       \
 745                 : "r" (&(ctx))          \
 746                 : "memory"                      \
 747         )
 748 #else
 749 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 750         __asm__ __volatile__(   \
 751                 "st %%g1,[%0]\n"        \
 752                 "st %%g2,[%0+0x04]\n"   \
 753                 "st %%g3,[%0+0x08]\n"   \
 754                 "st %%g4,[%0+0x0c]\n"   \
 755                 "st %%g5,[%0+0x10]\n"   \
 756                 "st %%g6,[%0+0x14]\n"   \
 757                 "st %%g7,[%0+0x18]\n"   \
 758                 "st %%o0,[%0+0x1c]\n"   \
 759                 "st %%o1,[%0+0x20]\n"   \
 760                 "st %%o2,[%0+0x24]\n"   \
 761                 "st %%o3,[%0+0x28]\n"   \
 762                 "st %%o4,[%0+0x2c]\n"   \
 763                 "st %%o5,[%0+0x30]\n"   \
 764                 "st %%o6,[%0+0x34]\n"   \
 765                 "st %%o7,[%0+0x38]\n"   \
 766                 :                       \
 767                 : "r" (&(ctx))          \
 768                 : "memory"                      \
 769         )
 770 #endif
 771
 772 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 773
 774 #elif ((defined(__mips__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_MIPS))) && SIZEOF_REGISTER == 4
 775
 776 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 777
 778 #include <mono/arch/mips/mips-codegen.h>
 779
 780 typedef struct {
 781         mgreg_t     sc_pc;
 782         mgreg_t         sc_regs [32];
 783         gfloat          sc_fpregs [32];
 784 } MonoContext;
 785
 786 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_pc = (mgreg_t)(ip); } while (0);
 787 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_regs[mips_fp] = (mgreg_t)(bp); } while (0);
 788 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_regs[mips_sp] = (mgreg_t)(sp); } while (0);
 789
 790 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->sc_pc))
 791 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->sc_regs[mips_fp]))
 792 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sc_regs[mips_sp]))
 793
 794 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 795         __asm__ __volatile__(   \
 796                 "sw $0,0(%0)\n\t"       \
 797                 "sw $1,4(%0)\n\t"       \
 798                 "sw $2,8(%0)\n\t"       \
 799                 "sw $3,12(%0)\n\t"      \
 800                 "sw $4,16(%0)\n\t"      \
 801                 "sw $5,20(%0)\n\t"      \
 802                 "sw $6,24(%0)\n\t"      \
 803                 "sw $7,28(%0)\n\t"      \
 804                 "sw $8,32(%0)\n\t"      \
 805                 "sw $9,36(%0)\n\t"      \
 806                 "sw $10,40(%0)\n\t"     \
 807                 "sw $11,44(%0)\n\t"     \
 808                 "sw $12,48(%0)\n\t"     \
 809                 "sw $13,52(%0)\n\t"     \
 810                 "sw $14,56(%0)\n\t"     \
 811                 "sw $15,60(%0)\n\t"     \
 812                 "sw $16,64(%0)\n\t"     \
 813                 "sw $17,68(%0)\n\t"     \
 814                 "sw $18,72(%0)\n\t"     \
 815                 "sw $19,76(%0)\n\t"     \
 816                 "sw $20,80(%0)\n\t"     \
 817                 "sw $21,84(%0)\n\t"     \
 818                 "sw $22,88(%0)\n\t"     \
 819                 "sw $23,92(%0)\n\t"     \
 820                 "sw $24,96(%0)\n\t"     \
 821                 "sw $25,100(%0)\n\t"    \
 822                 "sw $26,104(%0)\n\t"    \
 823                 "sw $27,108(%0)\n\t"    \
 824                 "sw $28,112(%0)\n\t"    \
 825                 "sw $29,116(%0)\n\t"    \
 826                 "sw $30,120(%0)\n\t"    \
 827                 "sw $31,124(%0)\n\t"    \
 828                 : : "r" (&(ctx).sc_regs [0])    \
 829                 : "memory"                      \
 830         )
 831
 832 #elif defined(__s390x__)
 833
 834 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 835
 836 typedef struct ucontext MonoContext;
 837
 838 #define MONO_CONTEXT_SET_IP(ctx,ip)                                     \
 839         do {                                                            \
 840                 (ctx)->uc_mcontext.gregs[14] = (unsigned long)ip;       \
 841                 (ctx)->uc_mcontext.psw.addr = (unsigned long)ip;        \
 842         } while (0);
 843
 844 #define MONO_CONTEXT_SET_SP(ctx,bp) MONO_CONTEXT_SET_BP((ctx),(bp))
 845 #define MONO_CONTEXT_SET_BP(ctx,bp)                                     \
 846         do {                                                            \
 847                 (ctx)->uc_mcontext.gregs[15] = (unsigned long)bp;       \
 848                 (ctx)->uc_stack.ss_sp        = (void*)bp;               \
 849         } while (0)
 850
 851 #define MONO_CONTEXT_GET_IP(ctx) (gpointer) (ctx)->uc_mcontext.psw.addr
 852 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[15]))
 853 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[11]))
 854
 855 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 856         __asm__ __volatile__(   \
 857                 "stmg   %%r0,%%r15,0(%0)\n"     \
 858                 : : "r" (&(ctx).uc_mcontext.gregs[0])   \
 859                 : "memory"                      \
 860         )
 861
 862 #else
 863
 864 #error "Implement mono-context for the current arch"
 865
 866 #endif
 867
 868 /*
 869  * The naming is misleading, the SIGCTX argument should be the platform's context
 870  * structure (ucontext_c on posix, CONTEXT on windows).
 871  */
 872 void mono_sigctx_to_monoctx (void *sigctx, MonoContext *mctx);
 873
 874 /*
 875  * This will not completely initialize SIGCTX since MonoContext contains less
 876  * information that the system context. The caller should obtain a SIGCTX from
 877  * the system, and use this function to override the parts of it which are
 878  * also in MonoContext.
 879  */
 880 void mono_monoctx_to_sigctx (MonoContext *mctx, void *sigctx);
 881
 882 #endif /* __MONO_MONO_CONTEXT_H__ */