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(TARGET_X86)
  26 #if defined(__APPLE__)
  27 #define MONO_HAVE_SIMD_REG
  28 typedef struct __darwin_xmm_reg MonoContextSimdReg;
  29 #endif
  30 #elif defined(TARGET_AMD64)
  31 #if defined(__APPLE__)
  32 #define MONO_HAVE_SIMD_REG
  33 typedef struct __darwin_xmm_reg MonoContextSimdReg;
  34 #elif defined(__linux__) && defined(__GLIBC__)
  35 #define MONO_HAVE_SIMD_REG
  36 typedef struct _libc_xmmreg MonoContextSimdReg;
  37 #elif defined(HOST_WIN32)
  38 #define MONO_HAVE_SIMD_REG
  39 #include <emmintrin.h>
  40 typedef __m128d MonoContextSimdReg;
  41 #elif defined(HOST_ANDROID)
  42 #define MONO_HAVE_SIMD_REG
  43 typedef struct _libc_xmmreg MonoContextSimdReg;
  44 #elif defined(__linux__) || defined(__OpenBSD__)
  45 #define MONO_HAVE_SIMD_REG
  46 #include <emmintrin.h>
  47 typedef __m128d MonoContextSimdReg;
  48 #endif
  49 #elif defined(TARGET_ARM64)
  50 #define MONO_HAVE_SIMD_REG
  51 typedef __uint128_t MonoContextSimdReg;
  52 #endif
  53
  54 /*
  55  * General notes about mono-context.
  56  * Each arch defines a MonoContext struct with all GPR regs + IP/PC.
  57  * IP/PC should be the last element of the struct (this is a mild sgen constraint we could drop if needed)
  58  * Macros to get/set BP, SP and IP are defined too.
  59  * MONO_CONTEXT_GET_CURRENT captures the current context as close as possible. One reg might be clobbered
  60  *  to hold the address of the target MonoContext. It will be a caller save one, so should not be a problem.
  61  */
  62 #if defined (TARGET_WASM)
  63
  64 typedef struct {
  65         host_mgreg_t wasm_sp;
  66         host_mgreg_t wasm_bp;
  67         host_mgreg_t llvm_exc_reg;
  68         host_mgreg_t wasm_ip;
  69         host_mgreg_t wasm_pc;
  70 } MonoContext;
  71
  72 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->wasm_ip = (host_mgreg_t)(gsize)(ip); } while (0);
  73 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->wasm_bp = (host_mgreg_t)(gsize)(bp); } while (0);
  74 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->wasm_sp = (host_mgreg_t)(gsize)(sp); } while (0);
  75
  76 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->wasm_ip))
  77 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->wasm_bp))
  78 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->wasm_sp))
  79
  80 #elif (defined(__i386__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_X86))
  81
  82 /*HACK, move this to an eventual mono-signal.c*/
  83 #if defined( __linux__) || defined(__sun) || defined(__APPLE__) || defined(__NetBSD__) || \
  84        defined(__FreeBSD__) || defined(__OpenBSD__)
  85 #if defined(HAVE_SIGACTION) || defined(__APPLE__)  // the __APPLE__ check is required for the tvos simulator, which has ucontext_t but not sigaction
  86 #define MONO_SIGNAL_USE_UCONTEXT_T 1
  87 #endif
  88 #endif
  89
  90 #ifdef __HAIKU__
  91 /* sigcontext surrogate */
  92 struct sigcontext {
  93         vregs regs;
  94 };
  95 #endif
  96
  97 #ifdef HOST_WIN32
  98 /* sigcontext surrogate */
  99 struct sigcontext {
 100         unsigned int eax;
 101         unsigned int ebx;
 102         unsigned int ecx;
 103         unsigned int edx;
 104         unsigned int ebp;
 105         unsigned int esp;
 106         unsigned int esi;
 107         unsigned int edi;
 108         unsigned int eip;
 109 };
 110 #endif
 111
 112 #if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
 113 # define SC_EAX sc_eax
 114 # define SC_EBX sc_ebx
 115 # define SC_ECX sc_ecx
 116 # define SC_EDX sc_edx
 117 # define SC_EBP sc_ebp
 118 # define SC_EIP sc_eip
 119 # define SC_ESP sc_esp
 120 # define SC_EDI sc_edi
 121 # define SC_ESI sc_esi
 122 #elif defined(__HAIKU__)
 123 # define SC_EAX regs.eax
 124 # define SC_EBX regs.ebx
 125 # define SC_ECX regs.ecx
 126 # define SC_EDX regs.edx
 127 # define SC_EBP regs.ebp
 128 # define SC_EIP regs.eip
 129 # define SC_ESP regs.esp
 130 # define SC_EDI regs.edi
 131 # define SC_ESI regs.esi
 132 #else
 133 # define SC_EAX eax
 134 # define SC_EBX ebx
 135 # define SC_ECX ecx
 136 # define SC_EDX edx
 137 # define SC_EBP ebp
 138 # define SC_EIP eip
 139 # define SC_ESP esp
 140 # define SC_EDI edi
 141 # define SC_ESI esi
 142 #endif
 143
 144 #include <mono/arch/x86/x86-codegen.h>
 145
 146 typedef struct {
 147         host_mgreg_t eax;
 148         host_mgreg_t ebx;
 149         host_mgreg_t ecx;
 150         host_mgreg_t edx;
 151         host_mgreg_t ebp;
 152         host_mgreg_t esp;
 153         host_mgreg_t esi;
 154         host_mgreg_t edi;
 155         host_mgreg_t eip;
 156 #ifdef __APPLE__
 157     MonoContextSimdReg fregs [X86_XMM_NREG];
 158 #endif
 159 } MonoContext;
 160
 161 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->eip = (host_mgreg_t)(gsize)(ip); } while (0);
 162 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->ebp = (host_mgreg_t)(gsize)(bp); } while (0);
 163 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->esp = (host_mgreg_t)(gsize)(sp); } while (0);
 164
 165 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->eip))
 166 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->ebp))
 167 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->esp))
 168
 169 /*We set EAX to zero since we are clobering it anyway*/
 170 #ifdef _MSC_VER
 171 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 172         void *_ptr = &(ctx);                                                                                            \
 173         __asm {                                                                                                                         \
 174          __asm mov eax, _ptr                                                                                            \
 175          __asm mov [eax+0x00], eax                                                                                      \
 176          __asm mov [eax+0x04], ebx                                                                                      \
 177          __asm mov [eax+0x08], ecx                                                                                      \
 178          __asm mov [eax+0x0c], edx                                                                                      \
 179          __asm mov [eax+0x10], ebp                                                                                      \
 180          __asm mov [eax+0x14], esp                                                                                      \
 181          __asm mov [eax+0x18], esi                                                                                      \
 182          __asm mov [eax+0x1c], edi                                                                                      \
 183          __asm call __mono_context_get_ip                                                                       \
 184          __asm __mono_context_get_ip:                                                                           \
 185          __asm pop dword ptr [eax+0x20]                                                                         \
 186                  }                                                                                                                              \
 187         } while (0)
 188 #else
 189
 190 #define MONO_CONTEXT_GET_CURRENT_GREGS(ctx) \
 191         __asm__ __volatile__(   \
 192         "movl $0x0, %c[eax](%0)\n" \
 193         "mov %%ebx, %c[ebx](%0)\n" \
 194         "mov %%ecx, %c[ecx](%0)\n" \
 195         "mov %%edx, %c[edx](%0)\n" \
 196         "mov %%ebp, %c[ebp](%0)\n" \
 197         "mov %%esp, %c[esp](%0)\n" \
 198         "mov %%esi, %c[esi](%0)\n" \
 199         "mov %%edi, %c[edi](%0)\n" \
 200         "call 1f\n"     \
 201         "1: pop 0x20(%0)\n"     \
 202         :       \
 203         : "a" (&(ctx)), \
 204                 [eax] MONO_CONTEXT_OFFSET (eax, 0, host_mgreg_t), \
 205                 [ebx] MONO_CONTEXT_OFFSET (ebx, 0, host_mgreg_t), \
 206                 [ecx] MONO_CONTEXT_OFFSET (ecx, 0, host_mgreg_t), \
 207                 [edx] MONO_CONTEXT_OFFSET (edx, 0, host_mgreg_t), \
 208                 [ebp] MONO_CONTEXT_OFFSET (ebp, 0, host_mgreg_t), \
 209                 [esp] MONO_CONTEXT_OFFSET (esp, 0, host_mgreg_t), \
 210                 [esi] MONO_CONTEXT_OFFSET (esi, 0, host_mgreg_t), \
 211                 [edi] MONO_CONTEXT_OFFSET (edi, 0, host_mgreg_t) \
 212         : "memory")
 213
 214 #ifdef UCONTEXT_REG_XMM
 215 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx) \
 216         do { \
 217                 __asm__ __volatile__ ( \
 218                         "movups %%xmm0, %c[xmm0](%0)\n" \
 219                         "movups %%xmm1, %c[xmm1](%0)\n" \
 220                         "movups %%xmm2, %c[xmm2](%0)\n" \
 221                         "movups %%xmm3, %c[xmm3](%0)\n" \
 222                         "movups %%xmm4, %c[xmm4](%0)\n" \
 223                         "movups %%xmm5, %c[xmm5](%0)\n" \
 224                         "movups %%xmm6, %c[xmm6](%0)\n" \
 225                         "movups %%xmm7, %c[xmm7](%0)\n" \
 226                         : \
 227                         : "a" (&(ctx)), \
 228                                 [xmm0] MONO_CONTEXT_OFFSET (fregs, X86_XMM0, MonoContextSimdReg), \
 229                                 [xmm1] MONO_CONTEXT_OFFSET (fregs, X86_XMM1, MonoContextSimdReg), \
 230                                 [xmm2] MONO_CONTEXT_OFFSET (fregs, X86_XMM2, MonoContextSimdReg), \
 231                                 [xmm3] MONO_CONTEXT_OFFSET (fregs, X86_XMM3, MonoContextSimdReg), \
 232                                 [xmm4] MONO_CONTEXT_OFFSET (fregs, X86_XMM4, MonoContextSimdReg), \
 233                                 [xmm5] MONO_CONTEXT_OFFSET (fregs, X86_XMM5, MonoContextSimdReg), \
 234                                 [xmm6] MONO_CONTEXT_OFFSET (fregs, X86_XMM6, MonoContextSimdReg), \
 235                                 [xmm7] MONO_CONTEXT_OFFSET (fregs, X86_XMM7, MonoContextSimdReg)); \
 236         } while (0)
 237 #else
 238 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx)
 239 #endif
 240
 241 #define MONO_CONTEXT_GET_CURRENT(ctx) \
 242     do {        \
 243                 MONO_CONTEXT_GET_CURRENT_GREGS(ctx);    \
 244                 MONO_CONTEXT_GET_CURRENT_FREGS(ctx);    \
 245         } while (0)
 246
 247 #endif
 248
 249 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 250
 251 #elif (defined(__x86_64__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_AMD64)) /* defined(__i386__) */
 252
 253 #include <mono/arch/amd64/amd64-codegen.h>
 254
 255 #if !defined( HOST_WIN32 )
 256
 257 // the __APPLE__ check is required for the tvos simulator, which has ucontext_t but not sigaction
 258 #if defined(HAVE_SIGACTION) || defined(__APPLE__)
 259 #define MONO_SIGNAL_USE_UCONTEXT_T 1
 260 #endif
 261
 262 #endif
 263
 264 #ifdef __HAIKU__
 265 /* sigcontext surrogate */
 266 struct sigcontext {
 267         vregs regs;
 268 };
 269
 270 // Haiku doesn't support this
 271 #undef MONO_SIGNAL_USE_UCONTEXT_T
 272 #endif
 273
 274 MONO_DISABLE_WARNING(4324) // 'struct_name' : structure was padded due to __declspec(align())
 275
 276 typedef struct {
 277         host_mgreg_t gregs [AMD64_NREG];
 278 #if defined(MONO_HAVE_SIMD_REG)
 279         MonoContextSimdReg fregs [AMD64_XMM_NREG];
 280 #else
 281         double fregs [AMD64_XMM_NREG];
 282 #endif
 283 } MonoContext;
 284
 285 MONO_RESTORE_WARNING
 286
 287 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->gregs [AMD64_RIP] = (host_mgreg_t)(gsize)(ip); } while (0);
 288 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->gregs [AMD64_RBP] = (host_mgreg_t)(gsize)(bp); } while (0);
 289 #define MONO_CONTEXT_SET_SP(ctx,esp) do { (ctx)->gregs [AMD64_RSP] = (host_mgreg_t)(gsize)(esp); } while (0);
 290
 291 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->gregs [AMD64_RIP]))
 292 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->gregs [AMD64_RBP]))
 293 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->gregs [AMD64_RSP]))
 294
 295 #if defined (HOST_WIN32) && !defined(__GNUC__)
 296 /* msvc doesn't support inline assembly, so have to use a separate .asm file */
 297 // G_EXTERN_C due to being written in assembly.
 298 G_EXTERN_C void mono_context_get_current (void *);
 299 #define MONO_CONTEXT_GET_CURRENT(ctx) do { mono_context_get_current((void*)&(ctx)); } while (0)
 300
 301 #else
 302
 303 #define MONO_CONTEXT_GET_CURRENT_GREGS(ctx) \
 304         do { \
 305                 __asm__ __volatile__(   \
 306                         "movq $0x0,  %c[rax](%0)\n"     \
 307                         "movq %%rcx, %c[rcx](%0)\n"     \
 308                         "movq %%rdx, %c[rdx](%0)\n"     \
 309                         "movq %%rbx, %c[rbx](%0)\n"     \
 310                         "movq %%rsp, %c[rsp](%0)\n"     \
 311                         "movq %%rbp, %c[rbp](%0)\n"     \
 312                         "movq %%rsi, %c[rsi](%0)\n"     \
 313                         "movq %%rdi, %c[rdi](%0)\n"     \
 314                         "movq %%r8,  %c[r8](%0)\n"      \
 315                         "movq %%r9,  %c[r9](%0)\n"      \
 316                         "movq %%r10, %c[r10](%0)\n"     \
 317                         "movq %%r11, %c[r11](%0)\n"     \
 318                         "movq %%r12, %c[r12](%0)\n"     \
 319                         "movq %%r13, %c[r13](%0)\n"     \
 320                         "movq %%r14, %c[r14](%0)\n"     \
 321                         "movq %%r15, %c[r15](%0)\n"     \
 322                         /* "leaq (%%rip), %%rdx\n" is not understood by icc */  \
 323                         ".byte 0x48, 0x8d, 0x15, 0x00, 0x00, 0x00, 0x00\n" \
 324                         "movq %%rdx, %c[rip](%0)\n"     \
 325                         :       \
 326                         : "a" (&(ctx)), \
 327                                 [rax] MONO_CONTEXT_OFFSET (gregs, AMD64_RAX, host_mgreg_t),     \
 328                                 [rcx] MONO_CONTEXT_OFFSET (gregs, AMD64_RCX, host_mgreg_t),     \
 329                                 [rdx] MONO_CONTEXT_OFFSET (gregs, AMD64_RDX, host_mgreg_t),     \
 330                                 [rbx] MONO_CONTEXT_OFFSET (gregs, AMD64_RBX, host_mgreg_t),     \
 331                                 [rsp] MONO_CONTEXT_OFFSET (gregs, AMD64_RSP, host_mgreg_t),     \
 332                                 [rbp] MONO_CONTEXT_OFFSET (gregs, AMD64_RBP, host_mgreg_t),     \
 333                                 [rsi] MONO_CONTEXT_OFFSET (gregs, AMD64_RSI, host_mgreg_t),     \
 334                                 [rdi] MONO_CONTEXT_OFFSET (gregs, AMD64_RDI, host_mgreg_t),     \
 335                                 [r8] MONO_CONTEXT_OFFSET (gregs, AMD64_R8, host_mgreg_t), \
 336                                 [r9] MONO_CONTEXT_OFFSET (gregs, AMD64_R9, host_mgreg_t), \
 337                                 [r10] MONO_CONTEXT_OFFSET (gregs, AMD64_R10, host_mgreg_t),     \
 338                                 [r11] MONO_CONTEXT_OFFSET (gregs, AMD64_R11, host_mgreg_t),     \
 339                                 [r12] MONO_CONTEXT_OFFSET (gregs, AMD64_R12, host_mgreg_t),     \
 340                                 [r13] MONO_CONTEXT_OFFSET (gregs, AMD64_R13, host_mgreg_t),     \
 341                                 [r14] MONO_CONTEXT_OFFSET (gregs, AMD64_R14, host_mgreg_t),     \
 342                                 [r15] MONO_CONTEXT_OFFSET (gregs, AMD64_R15, host_mgreg_t),     \
 343                                 [rip] MONO_CONTEXT_OFFSET (gregs, AMD64_RIP, host_mgreg_t)      \
 344                         : "rdx", "memory");     \
 345         } while (0)
 346
 347 #ifdef UCONTEXT_REG_XMM
 348 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx) \
 349         do { \
 350                 __asm__ __volatile__ ( \
 351                         "movups %%xmm0, %c[xmm0](%0)\n" \
 352                         "movups %%xmm1, %c[xmm1](%0)\n" \
 353                         "movups %%xmm2, %c[xmm2](%0)\n" \
 354                         "movups %%xmm3, %c[xmm3](%0)\n" \
 355                         "movups %%xmm4, %c[xmm4](%0)\n" \
 356                         "movups %%xmm5, %c[xmm5](%0)\n" \
 357                         "movups %%xmm6, %c[xmm6](%0)\n" \
 358                         "movups %%xmm7, %c[xmm7](%0)\n" \
 359                         "movups %%xmm8, %c[xmm8](%0)\n" \
 360                         "movups %%xmm9, %c[xmm9](%0)\n" \
 361                         "movups %%xmm10, %c[xmm10](%0)\n"       \
 362                         "movups %%xmm11, %c[xmm11](%0)\n"       \
 363                         "movups %%xmm12, %c[xmm12](%0)\n"       \
 364                         "movups %%xmm12, %c[xmm12](%0)\n"       \
 365                         "movups %%xmm14, %c[xmm14](%0)\n"       \
 366                         "movups %%xmm15, %c[xmm15](%0)\n"       \
 367                         : \
 368                         : "a" (&(ctx)), \
 369                                 [xmm0] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM0, MonoContextSimdReg), \
 370                                 [xmm1] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM1, MonoContextSimdReg), \
 371                                 [xmm2] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM2, MonoContextSimdReg), \
 372                                 [xmm3] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM3, MonoContextSimdReg), \
 373                                 [xmm4] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM4, MonoContextSimdReg), \
 374                                 [xmm5] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM5, MonoContextSimdReg), \
 375                                 [xmm6] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM6, MonoContextSimdReg), \
 376                                 [xmm7] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM7, MonoContextSimdReg), \
 377                                 [xmm8] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM8, MonoContextSimdReg), \
 378                                 [xmm9] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM9, MonoContextSimdReg), \
 379                                 [xmm10] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM10, MonoContextSimdReg), \
 380                                 [xmm11] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM11, MonoContextSimdReg), \
 381                                 [xmm12] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM12, MonoContextSimdReg), \
 382                                 [xmm13] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM13, MonoContextSimdReg), \
 383                                 [xmm14] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM14, MonoContextSimdReg), \
 384                                 [xmm15] MONO_CONTEXT_OFFSET (fregs, AMD64_XMM15, MonoContextSimdReg));  \
 385         } while (0)
 386 #else
 387 #define MONO_CONTEXT_GET_CURRENT_FREGS(ctx)
 388 #endif
 389
 390 #define MONO_CONTEXT_GET_CURRENT(ctx) \
 391     do {        \
 392                 MONO_CONTEXT_GET_CURRENT_GREGS(ctx);    \
 393                 MONO_CONTEXT_GET_CURRENT_FREGS(ctx);    \
 394         } while (0)
 395 #endif
 396
 397 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 398
 399 #elif (defined(__arm__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_ARM)) /* defined(__x86_64__) */
 400
 401 #include <mono/arch/arm/arm-codegen.h>
 402
 403 typedef struct {
 404         host_mgreg_t pc;
 405         host_mgreg_t regs [16];
 406         double fregs [16];
 407         host_mgreg_t cpsr;
 408 } MonoContext;
 409
 410 /* we have the stack pointer, not the base pointer in sigcontext */
 411 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->pc = (host_mgreg_t)(gsize)ip; } while (0);
 412 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->regs [ARMREG_FP] = (host_mgreg_t)(gsize)bp; } while (0);
 413 #define MONO_CONTEXT_SET_SP(ctx,bp) do { (ctx)->regs [ARMREG_SP] = (host_mgreg_t)(gsize)bp; } while (0);
 414
 415 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->pc))
 416 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->regs [ARMREG_FP]))
 417 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->regs [ARMREG_SP]))
 418
 419 #if defined(HOST_WATCHOS)
 420
 421 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 422         gpointer _dummy; \
 423     ctx.regs [ARMREG_SP] = (host_mgreg_t)(gsize)&_dummy; \
 424 } while (0);
 425
 426 #else
 427
 428 #define MONO_CONTEXT_GET_CURRENT(ctx)   do {    \
 429         __asm__ __volatile__(                   \
 430                 "push {r0}\n"                           \
 431                 "push {r1}\n"                           \
 432                 "mov r0, %0\n"                          \
 433                 "ldr r1, [sp, #4]\n"            \
 434                 "str r1, [r0], #4\n"            \
 435                 "ldr r1, [sp, #0]\n"            \
 436                 "str r1, [r0], #4\n"            \
 437                 "stmia r0!, {r2-r12}\n"         \
 438                 "str sp, [r0], #4\n"            \
 439                 "str lr, [r0], #4\n"            \
 440                 "mov r1, pc\n"                          \
 441                 "str r1, [r0], #4\n"            \
 442                 "pop {r1}\n"                            \
 443                 "pop {r0}\n"                            \
 444                 :                                                       \
 445                 : "r" (&ctx.regs)                       \
 446                 : "memory"                                      \
 447         );                                                              \
 448         ctx.pc = ctx.regs [15];                 \
 449 } while (0)
 450
 451 #endif
 452
 453 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 454
 455 #elif (defined(__aarch64__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_ARM64))
 456
 457 #include <mono/arch/arm64/arm64-codegen.h>
 458
 459 typedef struct {
 460         host_mgreg_t regs [32];
 461         /* FIXME not fully saved in trampolines */
 462         MonoContextSimdReg fregs [32];
 463         host_mgreg_t pc;
 464         /*
 465          * fregs might not be initialized if this context was created from a
 466          * ucontext.
 467          */
 468         host_mgreg_t has_fregs;
 469 } MonoContext;
 470
 471 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->pc = (host_mgreg_t)(gsize)ip; } while (0)
 472 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->regs [ARMREG_FP] = (host_mgreg_t)(gsize)bp; } while (0);
 473 #define MONO_CONTEXT_SET_SP(ctx,bp) do { (ctx)->regs [ARMREG_SP] = (host_mgreg_t)(gsize)bp; } while (0);
 474
 475 #define MONO_CONTEXT_GET_IP(ctx) (gpointer)(gsize)((ctx)->pc)
 476 #define MONO_CONTEXT_GET_BP(ctx) (gpointer)(gsize)((ctx)->regs [ARMREG_FP])
 477 #define MONO_CONTEXT_GET_SP(ctx) (gpointer)(gsize)((ctx)->regs [ARMREG_SP])
 478
 479 #if defined (HOST_TVOS)
 480
 481 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 482         arm_unified_thread_state_t thread_state;        \
 483         arm_neon_state64_t thread_fpstate;              \
 484         int state_flavor = ARM_UNIFIED_THREAD_STATE;    \
 485         int fpstate_flavor = ARM_NEON_STATE64;  \
 486         unsigned state_count = ARM_UNIFIED_THREAD_STATE_COUNT;  \
 487         unsigned fpstate_count = ARM_NEON_STATE64_COUNT;        \
 488         thread_port_t self = mach_thread_self ();       \
 489         kern_return_t ret = thread_get_state (self, state_flavor, (thread_state_t) &thread_state, &state_count);        \
 490         g_assert (ret == 0);    \
 491         ret = thread_get_state (self, fpstate_flavor, (thread_state_t) &thread_fpstate, &fpstate_count);        \
 492         g_assert (ret == 0);    \
 493         mono_mach_arch_thread_states_to_mono_context ((thread_state_t) &thread_state, (thread_state_t) &thread_fpstate, &ctx); \
 494         mach_port_deallocate (current_task (), self);   \
 495 } while (0);
 496
 497 #elif defined(HOST_WATCHOS)
 498
 499 #define MONO_CONTEXT_GET_CURRENT(ctx) do { \
 500         gpointer _dummy; \
 501         ctx.regs [ARMREG_SP] = (host_mgreg_t)(gsize)&_dummy; \
 502 } while (0);
 503
 504 #else
 505
 506 #define MONO_CONTEXT_GET_CURRENT(ctx)   do {    \
 507         __asm__ __volatile__(                   \
 508                 "mov x16, %0\n" \
 509                 "stp x0, x1, [x16], #16\n"      \
 510                 "stp x2, x3, [x16], #16\n"      \
 511                 "stp x4, x5, [x16], #16\n"      \
 512                 "stp x6, x7, [x16], #16\n"      \
 513                 "stp x8, x9, [x16], #16\n"      \
 514                 "stp x10, x11, [x16], #16\n"    \
 515                 "stp x12, x13, [x16], #16\n"    \
 516                 "stp x14, x15, [x16], #16\n"    \
 517                 "stp xzr, x17, [x16], #16\n"    \
 518                 "stp x18, x19, [x16], #16\n"    \
 519                 "stp x20, x21, [x16], #16\n"    \
 520                 "stp x22, x23, [x16], #16\n"    \
 521                 "stp x24, x25, [x16], #16\n"    \
 522                 "stp x26, x27, [x16], #16\n"    \
 523                 "stp x28, x29, [x16], #16\n"    \
 524                 "stp x30, xzr, [x16], #8\n"     \
 525                 "mov x30, sp\n"                         \
 526                 "str x30, [x16], #8\n"          \
 527                 "stp q0, q1, [x16], #32\n"      \
 528                 "stp q2, q3, [x16], #32\n"      \
 529                 "stp q4, q5, [x16], #32\n"      \
 530                 "stp q6, q7, [x16], #32\n"      \
 531                 "stp q8, q9, [x16], #32\n"      \
 532                 "stp q10, q11, [x16], #32\n"    \
 533                 "stp q12, q13, [x16], #32\n"    \
 534                 "stp q14, q15, [x16], #32\n"    \
 535                 "stp q16, q17, [x16], #32\n"    \
 536                 "stp q18, q19, [x16], #32\n"    \
 537                 "stp q20, q21, [x16], #32\n"    \
 538                 "stp q22, q23, [x16], #32\n"    \
 539                 "stp q24, q25, [x16], #32\n"    \
 540                 "stp q26, q27, [x16], #32\n"    \
 541                 "stp q28, q29, [x16], #32\n"    \
 542                 "stp q30, q31, [x16], #32\n"            \
 543                 :                                                       \
 544                 : "r" (&ctx.regs)                       \
 545                 : "x16", "x30", "memory"                \
 546         );                                                              \
 547         __asm__ __volatile__( \
 548                 "adr %0, L0%=\n" \
 549                 "L0%=:\n"       \
 550                 : "=r" (ctx.pc)         \
 551                 :                                       \
 552                 : "memory"                       \
 553         ); \
 554 } while (0)
 555
 556 #endif
 557
 558 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 559
 560 #elif defined(__mono_ppc__) /* defined(__arm__) */
 561
 562 /* we define our own structure and we'll copy the data
 563  * from sigcontext/ucontext/mach when we need it.
 564  * This also makes us save stack space and time when copying
 565  * We might also want to add an additional field to propagate
 566  * the original context from the signal handler.
 567  */
 568 #ifdef __mono_ppc64__
 569
 570 typedef struct {
 571         gulong sc_ir;          // pc
 572         gulong sc_sp;          // r1
 573         host_mgreg_t regs [32];
 574         double fregs [32];
 575 } MonoContext;
 576
 577 /* we have the stack pointer, not the base pointer in sigcontext */
 578 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (gulong)(gsize)ip; } while (0);
 579 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (gulong)(gsize)bp; } while (0);
 580 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_sp = (gulong)(gsize)sp; } while (0);
 581
 582 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->sc_ir))
 583 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->regs [ppc_r31]))
 584 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->sc_sp))
 585
 586 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 587         __asm__ __volatile__(   \
 588                 "std 0, 0(%0)\n"        \
 589                 "std 1, 8(%0)\n"        \
 590                 "std 0, 8*0+16(%0)\n"   \
 591                 "std 1, 8*1+16(%0)\n"   \
 592                 "std 2, 8*2+16(%0)\n"   \
 593                 "std 3, 8*3+16(%0)\n"   \
 594                 "std 4, 8*4+16(%0)\n"   \
 595                 "std 5, 8*5+16(%0)\n"   \
 596                 "std 6, 8*6+16(%0)\n"   \
 597                 "std 7, 8*7+16(%0)\n"   \
 598                 "std 8, 8*8+16(%0)\n"   \
 599                 "std 9, 8*9+16(%0)\n"   \
 600                 "std 10, 8*10+16(%0)\n" \
 601                 "std 11, 8*11+16(%0)\n" \
 602                 "std 12, 8*12+16(%0)\n" \
 603                 "std 13, 8*13+16(%0)\n" \
 604                 "std 14, 8*14+16(%0)\n" \
 605                 "std 15, 8*15+16(%0)\n" \
 606                 "std 16, 8*16+16(%0)\n" \
 607                 "std 17, 8*17+16(%0)\n" \
 608                 "std 18, 8*18+16(%0)\n" \
 609                 "std 19, 8*19+16(%0)\n" \
 610                 "std 20, 8*20+16(%0)\n" \
 611                 "std 21, 8*21+16(%0)\n" \
 612                 "std 22, 8*22+16(%0)\n" \
 613                 "std 23, 8*23+16(%0)\n" \
 614                 "std 24, 8*24+16(%0)\n" \
 615                 "std 25, 8*25+16(%0)\n" \
 616                 "std 26, 8*26+16(%0)\n" \
 617                 "std 27, 8*27+16(%0)\n" \
 618                 "std 28, 8*28+16(%0)\n" \
 619                 "std 29, 8*29+16(%0)\n" \
 620                 "std 30, 8*30+16(%0)\n" \
 621                 "std 31, 8*31+16(%0)\n" \
 622                 "stfd 0, 8*0+8*32+16(%0)\n"     \
 623                 "stfd 1, 8*1+8*32+16(%0)\n"     \
 624                 "stfd 2, 8*2+8*32+16(%0)\n"     \
 625                 "stfd 3, 8*3+8*32+16(%0)\n"     \
 626                 "stfd 4, 8*4+8*32+16(%0)\n"     \
 627                 "stfd 5, 8*5+8*32+16(%0)\n"     \
 628                 "stfd 6, 8*6+8*32+16(%0)\n"     \
 629                 "stfd 7, 8*7+8*32+16(%0)\n"     \
 630                 "stfd 8, 8*8+8*32+16(%0)\n"     \
 631                 "stfd 9, 8*9+8*32+16(%0)\n"     \
 632                 "stfd 10, 8*10+8*32+16(%0)\n"   \
 633                 "stfd 11, 8*11+8*32+16(%0)\n"   \
 634                 "stfd 12, 8*12+8*32+16(%0)\n"   \
 635                 "stfd 13, 8*13+8*32+16(%0)\n"   \
 636                 "stfd 14, 8*14+8*32+16(%0)\n"   \
 637                 "stfd 15, 8*15+8*32+16(%0)\n"   \
 638                 "stfd 16, 8*16+8*32+16(%0)\n"   \
 639                 "stfd 17, 8*17+8*32+16(%0)\n"   \
 640                 "stfd 18, 8*18+8*32+16(%0)\n"   \
 641                 "stfd 19, 8*19+8*32+16(%0)\n"   \
 642                 "stfd 20, 8*20+8*32+16(%0)\n"   \
 643                 "stfd 21, 8*21+8*32+16(%0)\n"   \
 644                 "stfd 22, 8*22+8*32+16(%0)\n"   \
 645                 "stfd 23, 8*23+8*32+16(%0)\n"   \
 646                 "stfd 24, 8*24+8*32+16(%0)\n"   \
 647                 "stfd 25, 8*25+8*32+16(%0)\n"   \
 648                 "stfd 26, 8*26+8*32+16(%0)\n"   \
 649                 "stfd 27, 8*27+8*32+16(%0)\n"   \
 650                 "stfd 28, 8*28+8*32+16(%0)\n"   \
 651                 "stfd 29, 8*29+8*32+16(%0)\n"   \
 652                 "stfd 30, 8*30+8*32+16(%0)\n"   \
 653                 "stfd 31, 8*31+8*32+16(%0)\n"   \
 654                 : : "r" (&(ctx))        \
 655                 : "memory"                      \
 656         )
 657
 658 #else /* !defined(__mono_ppc64__) */
 659
 660 typedef struct {
 661         host_mgreg_t sc_ir;          // pc
 662         host_mgreg_t sc_sp;          // r1
 663         host_mgreg_t regs [32];
 664         double fregs [32];
 665 } MonoContext;
 666
 667 /* we have the stack pointer, not the base pointer in sigcontext */
 668 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_ir = (host_mgreg_t)(gsize)ip; } while (0);
 669 /* FIXME: should be called SET_SP */
 670 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_sp = (host_mgreg_t)(gsize)bp; } while (0);
 671 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_sp = (host_mgreg_t)(gsize)sp; } while (0);
 672
 673 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->sc_ir))
 674 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->regs [ppc_r31]))
 675 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->sc_sp))
 676
 677 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 678         __asm__ __volatile__(   \
 679                 "stw 0, 0(%0)\n"        \
 680                 "stw 1, 4(%0)\n"        \
 681                 "stw 0, 4*0+8(%0)\n"    \
 682                 "stw 1, 4*1+8(%0)\n"    \
 683                 "stw 2, 4*2+8(%0)\n"    \
 684                 "stw 3, 4*3+8(%0)\n"    \
 685                 "stw 4, 4*4+8(%0)\n"    \
 686                 "stw 5, 4*5+8(%0)\n"    \
 687                 "stw 6, 4*6+8(%0)\n"    \
 688                 "stw 7, 4*7+8(%0)\n"    \
 689                 "stw 8, 4*8+8(%0)\n"    \
 690                 "stw 9, 4*9+8(%0)\n"    \
 691                 "stw 10, 4*10+8(%0)\n"  \
 692                 "stw 11, 4*11+8(%0)\n"  \
 693                 "stw 12, 4*12+8(%0)\n"  \
 694                 "stw 13, 4*13+8(%0)\n"  \
 695                 "stw 14, 4*14+8(%0)\n"  \
 696                 "stw 15, 4*15+8(%0)\n"  \
 697                 "stw 16, 4*16+8(%0)\n"  \
 698                 "stw 17, 4*17+8(%0)\n"  \
 699                 "stw 18, 4*18+8(%0)\n"  \
 700                 "stw 19, 4*19+8(%0)\n"  \
 701                 "stw 20, 4*20+8(%0)\n"  \
 702                 "stw 21, 4*21+8(%0)\n"  \
 703                 "stw 22, 4*22+8(%0)\n"  \
 704                 "stw 23, 4*23+8(%0)\n"  \
 705                 "stw 24, 4*24+8(%0)\n"  \
 706                 "stw 25, 4*25+8(%0)\n"  \
 707                 "stw 26, 4*26+8(%0)\n"  \
 708                 "stw 27, 4*27+8(%0)\n"  \
 709                 "stw 28, 4*28+8(%0)\n"  \
 710                 "stw 29, 4*29+8(%0)\n"  \
 711                 "stw 30, 4*30+8(%0)\n"  \
 712                 "stw 31, 4*31+8(%0)\n"  \
 713                 "stfd 0, 8*0+4*32+8(%0)\n"      \
 714                 "stfd 1, 8*1+4*32+8(%0)\n"      \
 715                 "stfd 2, 8*2+4*32+8(%0)\n"      \
 716                 "stfd 3, 8*3+4*32+8(%0)\n"      \
 717                 "stfd 4, 8*4+4*32+8(%0)\n"      \
 718                 "stfd 5, 8*5+4*32+8(%0)\n"      \
 719                 "stfd 6, 8*6+4*32+8(%0)\n"      \
 720                 "stfd 7, 8*7+4*32+8(%0)\n"      \
 721                 "stfd 8, 8*8+4*32+8(%0)\n"      \
 722                 "stfd 9, 8*9+4*32+8(%0)\n"      \
 723                 "stfd 10, 8*10+4*32+8(%0)\n"    \
 724                 "stfd 11, 8*11+4*32+8(%0)\n"    \
 725                 "stfd 12, 8*12+4*32+8(%0)\n"    \
 726                 "stfd 13, 8*13+4*32+8(%0)\n"    \
 727                 "stfd 14, 8*14+4*32+8(%0)\n"    \
 728                 "stfd 15, 8*15+4*32+8(%0)\n"    \
 729                 "stfd 16, 8*16+4*32+8(%0)\n"    \
 730                 "stfd 17, 8*17+4*32+8(%0)\n"    \
 731                 "stfd 18, 8*18+4*32+8(%0)\n"    \
 732                 "stfd 19, 8*19+4*32+8(%0)\n"    \
 733                 "stfd 20, 8*20+4*32+8(%0)\n"    \
 734                 "stfd 21, 8*21+4*32+8(%0)\n"    \
 735                 "stfd 22, 8*22+4*32+8(%0)\n"    \
 736                 "stfd 23, 8*23+4*32+8(%0)\n"    \
 737                 "stfd 24, 8*24+4*32+8(%0)\n"    \
 738                 "stfd 25, 8*25+4*32+8(%0)\n"    \
 739                 "stfd 26, 8*26+4*32+8(%0)\n"    \
 740                 "stfd 27, 8*27+4*32+8(%0)\n"    \
 741                 "stfd 28, 8*28+4*32+8(%0)\n"    \
 742                 "stfd 29, 8*29+4*32+8(%0)\n"    \
 743                 "stfd 30, 8*30+4*32+8(%0)\n"    \
 744                 "stfd 31, 8*31+4*32+8(%0)\n"    \
 745                 : : "r" (&(ctx))        \
 746                 : "memory", "r0"        \
 747         )
 748
 749 #endif
 750
 751 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 752
 753 #elif defined(__sparc__) || defined(sparc) /* defined(__mono_ppc__) */
 754
 755 typedef struct MonoContext {
 756         host_mgreg_t regs [15];
 757         guint8 *ip;
 758         gpointer *sp;
 759         gpointer *fp;
 760 } MonoContext;
 761
 762 #define MONO_CONTEXT_SET_IP(ctx,eip) do { (ctx)->ip = (gpointer)(eip); } while (0);
 763 #define MONO_CONTEXT_SET_BP(ctx,ebp) do { (ctx)->fp = (gpointer*)(ebp); } while (0);
 764 #define MONO_CONTEXT_SET_SP(ctx,esp) do { (ctx)->sp = (gpointer*)(esp); } while (0);
 765
 766 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)((ctx)->ip))
 767 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->fp))
 768 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->sp))
 769
 770 #ifdef __sparcv9
 771 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 772         __asm__ __volatile__(   \
 773                 "st %%g1,[%0]\n"        \
 774                 "st %%g2,[%0+0x08]\n"   \
 775                 "st %%g3,[%0+0x10]\n"   \
 776                 "st %%g4,[%0+0x18]\n"   \
 777                 "st %%g5,[%0+0x20]\n"   \
 778                 "st %%g6,[%0+0x28]\n"   \
 779                 "st %%g7,[%0+0x30]\n"   \
 780                 "st %%o0,[%0+0x38]\n"   \
 781                 "st %%o1,[%0+0x40]\n"   \
 782                 "st %%o2,[%0+0x48]\n"   \
 783                 "st %%o3,[%0+0x50]\n"   \
 784                 "st %%o4,[%0+0x58]\n"   \
 785                 "st %%o5,[%0+0x60]\n"   \
 786                 "st %%o6,[%0+0x68]\n"   \
 787                 "st %%o7,[%0+0x70]\n"   \
 788                 :                       \
 789                 : "r" (&(ctx))          \
 790                 : "memory"                      \
 791         )
 792 #else
 793 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 794         __asm__ __volatile__(   \
 795                 "st %%g1,[%0]\n"        \
 796                 "st %%g2,[%0+0x04]\n"   \
 797                 "st %%g3,[%0+0x08]\n"   \
 798                 "st %%g4,[%0+0x0c]\n"   \
 799                 "st %%g5,[%0+0x10]\n"   \
 800                 "st %%g6,[%0+0x14]\n"   \
 801                 "st %%g7,[%0+0x18]\n"   \
 802                 "st %%o0,[%0+0x1c]\n"   \
 803                 "st %%o1,[%0+0x20]\n"   \
 804                 "st %%o2,[%0+0x24]\n"   \
 805                 "st %%o3,[%0+0x28]\n"   \
 806                 "st %%o4,[%0+0x2c]\n"   \
 807                 "st %%o5,[%0+0x30]\n"   \
 808                 "st %%o6,[%0+0x34]\n"   \
 809                 "st %%o7,[%0+0x38]\n"   \
 810                 :                       \
 811                 : "r" (&(ctx))          \
 812                 : "memory"                      \
 813         )
 814 #endif
 815
 816 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 817
 818 #elif ((defined(__mips__) && !defined(MONO_CROSS_COMPILE)) || (defined(TARGET_MIPS))) && SIZEOF_REGISTER == 4
 819
 820 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 821
 822 #include <mono/arch/mips/mips-codegen.h>
 823
 824 typedef struct {
 825         host_mgreg_t        sc_pc;
 826         host_mgreg_t            sc_regs [32];
 827         gfloat          sc_fpregs [32];
 828 } MonoContext;
 829
 830 #define MONO_CONTEXT_SET_IP(ctx,ip) do { (ctx)->sc_pc = (host_mgreg_t)(gsize)(ip); } while (0);
 831 #define MONO_CONTEXT_SET_BP(ctx,bp) do { (ctx)->sc_regs[mips_fp] = (host_mgreg_t)(gsize)(bp); } while (0);
 832 #define MONO_CONTEXT_SET_SP(ctx,sp) do { (ctx)->sc_regs[mips_sp] = (host_mgreg_t)(gsize)(sp); } while (0);
 833
 834 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer)(gsize)((ctx)->sc_pc))
 835 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)(gsize)((ctx)->sc_regs[mips_fp]))
 836 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)(gsize)((ctx)->sc_regs[mips_sp]))
 837
 838 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 839         __asm__ __volatile__(   \
 840                 "sw $0,0(%0)\n\t"       \
 841                 "sw $1,4(%0)\n\t"       \
 842                 "sw $2,8(%0)\n\t"       \
 843                 "sw $3,12(%0)\n\t"      \
 844                 "sw $4,16(%0)\n\t"      \
 845                 "sw $5,20(%0)\n\t"      \
 846                 "sw $6,24(%0)\n\t"      \
 847                 "sw $7,28(%0)\n\t"      \
 848                 "sw $8,32(%0)\n\t"      \
 849                 "sw $9,36(%0)\n\t"      \
 850                 "sw $10,40(%0)\n\t"     \
 851                 "sw $11,44(%0)\n\t"     \
 852                 "sw $12,48(%0)\n\t"     \
 853                 "sw $13,52(%0)\n\t"     \
 854                 "sw $14,56(%0)\n\t"     \
 855                 "sw $15,60(%0)\n\t"     \
 856                 "sw $16,64(%0)\n\t"     \
 857                 "sw $17,68(%0)\n\t"     \
 858                 "sw $18,72(%0)\n\t"     \
 859                 "sw $19,76(%0)\n\t"     \
 860                 "sw $20,80(%0)\n\t"     \
 861                 "sw $21,84(%0)\n\t"     \
 862                 "sw $22,88(%0)\n\t"     \
 863                 "sw $23,92(%0)\n\t"     \
 864                 "sw $24,96(%0)\n\t"     \
 865                 "sw $25,100(%0)\n\t"    \
 866                 "sw $26,104(%0)\n\t"    \
 867                 "sw $27,108(%0)\n\t"    \
 868                 "sw $28,112(%0)\n\t"    \
 869                 "sw $29,116(%0)\n\t"    \
 870                 "sw $30,120(%0)\n\t"    \
 871                 "sw $31,124(%0)\n\t"    \
 872                 : : "r" (&(ctx).sc_regs [0])    \
 873                 : "memory"                      \
 874         )
 875
 876 #elif defined(__s390x__)
 877
 878 #define MONO_ARCH_HAS_MONO_CONTEXT 1
 879
 880 #include <sys/ucontext.h>
 881
 882 #if __GLIBC_PREREQ(2, 27)
 883 typedef ucontext_t MonoContext;
 884 #else
 885 typedef struct ucontext MonoContext;
 886 #endif
 887
 888 #define MONO_CONTEXT_SET_IP(ctx,ip)                                     \
 889         do {                                                            \
 890                 (ctx)->uc_mcontext.gregs[14] = (unsigned long)ip;       \
 891                 (ctx)->uc_mcontext.psw.addr = (unsigned long)ip;        \
 892         } while (0);
 893
 894 #define MONO_CONTEXT_SET_SP(ctx,bp) MONO_CONTEXT_SET_BP((ctx),(bp))
 895 #define MONO_CONTEXT_SET_BP(ctx,bp)                                     \
 896         do {                                                            \
 897                 (ctx)->uc_mcontext.gregs[15] = (unsigned long)bp;       \
 898                 (ctx)->uc_stack.ss_sp        = (void*)bp;               \
 899         } while (0)
 900
 901 #define MONO_CONTEXT_GET_IP(ctx) (gpointer) (ctx)->uc_mcontext.psw.addr
 902 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[15]))
 903 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer)((ctx)->uc_mcontext.gregs[11]))
 904
 905 #define MONO_CONTEXT_GET_CURRENT(ctx)   \
 906         __asm__ __volatile__(   \
 907                 "stmg   %%r0,%%r15,0(%0)\n"     \
 908                 "std    %%f0,0(%1)\n"           \
 909                 "std    %%f1,8(%1)\n"           \
 910                 "std    %%f2,16(%1)\n"          \
 911                 "std    %%f3,24(%1)\n"          \
 912                 "std    %%f4,32(%1)\n"          \
 913                 "std    %%f5,40(%1)\n"          \
 914                 "std    %%f6,48(%1)\n"          \
 915                 "std    %%f7,56(%1)\n"          \
 916                 "std    %%f8,64(%1)\n"          \
 917                 "std    %%f9,72(%1)\n"          \
 918                 "std    %%f10,80(%1)\n"         \
 919                 "std    %%f11,88(%1)\n"         \
 920                 "std    %%f12,96(%1)\n"         \
 921                 "std    %%f13,104(%1)\n"                \
 922                 "std    %%f14,112(%1)\n"                \
 923                 "std    %%f15,120(%1)\n"                \
 924                 : : "r" (&(ctx).uc_mcontext.gregs[0]),          \
 925                     "r" (&(ctx).uc_mcontext.fpregs.fprs[0])     \
 926                 : "memory"                      \
 927         )
 928
 929 #elif (defined (HOST_RISCV) && !defined (MONO_CROSS_COMPILE)) || defined (TARGET_RISCV)
 930
 931 #include <mono/arch/riscv/riscv-codegen.h>
 932
 933 typedef struct {
 934         host_mgreg_t gregs [RISCV_N_GREGS]; // [0] contains pc since x0 is hard-wired to zero anyway.
 935         double fregs [RISCV_N_FREGS * 2 + 2]; // [32] contains fcsr (32 bits), the rest is for quad-precision values (currently unused).
 936 } MonoContext;
 937
 938 #define MONO_CONTEXT_SET_IP(ctx, ip) do { (ctx)->gregs [RISCV_ZERO] = (host_mgreg_t) (ip); } while (0)
 939 #define MONO_CONTEXT_SET_BP(ctx, bp) do { (ctx)->gregs [RISCV_FP] = (host_mgreg_t) (bp); } while (0)
 940 #define MONO_CONTEXT_SET_SP(ctx, sp) do { (ctx)->gregs [RISCV_SP] = (host_mgreg_t) (sp); } while (0)
 941
 942 #define MONO_CONTEXT_GET_IP(ctx) ((gpointer) ((ctx)->gregs [RISCV_ZERO]))
 943 #define MONO_CONTEXT_GET_BP(ctx) ((gpointer) ((ctx)->gregs [RISCV_FP]))
 944 #define MONO_CONTEXT_GET_SP(ctx) ((gpointer) ((ctx)->gregs [RISCV_SP]))
 945
 946 #ifdef TARGET_RISCV64
 947 #define _RISCV_STR "sd"
 948 #define _RISCV_SZ "8"
 949 #else
 950 #define _RISCV_STR "sw"
 951 #define _RISCV_SZ "4"
 952 #endif
 953
 954 #define MONO_CONTEXT_GET_CURRENT(ctx) \
 955         do { \
 956                 __asm__ __volatile__ ( \
 957                         _RISCV_STR " x1, " _RISCV_SZ "*1(%0)\n" \
 958                         _RISCV_STR " x2, " _RISCV_SZ "*2(%0)\n" \
 959                         _RISCV_STR " x3, " _RISCV_SZ "*3(%0)\n" \
 960                         _RISCV_STR " x4, " _RISCV_SZ "*4(%0)\n" \
 961                         _RISCV_STR " x5, " _RISCV_SZ "*5(%0)\n" \
 962                         _RISCV_STR " x6, " _RISCV_SZ "*6(%0)\n" \
 963                         _RISCV_STR " x7, " _RISCV_SZ "*7(%0)\n" \
 964                         _RISCV_STR " x8, " _RISCV_SZ "*8(%0)\n" \
 965                         _RISCV_STR " x9, " _RISCV_SZ "*9(%0)\n" \
 966                         _RISCV_STR " x10, " _RISCV_SZ "*10(%0)\n" \
 967                         _RISCV_STR " x11, " _RISCV_SZ "*11(%0)\n" \
 968                         _RISCV_STR " x12, " _RISCV_SZ "*12(%0)\n" \
 969                         _RISCV_STR " x13, " _RISCV_SZ "*13(%0)\n" \
 970                         _RISCV_STR " x14, " _RISCV_SZ "*14(%0)\n" \
 971                         _RISCV_STR " x15, " _RISCV_SZ "*15(%0)\n" \
 972                         _RISCV_STR " x16, " _RISCV_SZ "*16(%0)\n" \
 973                         _RISCV_STR " x17, " _RISCV_SZ "*17(%0)\n" \
 974                         _RISCV_STR " x18, " _RISCV_SZ "*18(%0)\n" \
 975                         _RISCV_STR " x19, " _RISCV_SZ "*19(%0)\n" \
 976                         _RISCV_STR " x20, " _RISCV_SZ "*20(%0)\n" \
 977                         _RISCV_STR " x21, " _RISCV_SZ "*21(%0)\n" \
 978                         _RISCV_STR " x22, " _RISCV_SZ "*22(%0)\n" \
 979                         _RISCV_STR " x23, " _RISCV_SZ "*23(%0)\n" \
 980                         _RISCV_STR " x24, " _RISCV_SZ "*24(%0)\n" \
 981                         _RISCV_STR " x25, " _RISCV_SZ "*25(%0)\n" \
 982                         _RISCV_STR " x26, " _RISCV_SZ "*26(%0)\n" \
 983                         _RISCV_STR " x27, " _RISCV_SZ "*27(%0)\n" \
 984                         _RISCV_STR " x28, " _RISCV_SZ "*28(%0)\n" \
 985                         _RISCV_STR " x29, " _RISCV_SZ "*29(%0)\n" \
 986                         _RISCV_STR " x30, " _RISCV_SZ "*30(%0)\n" \
 987                         _RISCV_STR " x31, " _RISCV_SZ "*31(%0)\n" \
 988                         : \
 989                         : "r" (&(ctx).gregs) \
 990                         : "memory" \
 991                 ); \
 992                 __asm__ __volatile__ ( \
 993                         "frcsr t0\n" \
 994                         "fsd f0, 8*0(%0)\n" \
 995                         "fsd f1, 8*1(%0)\n" \
 996                         "fsd f2, 8*2(%0)\n" \
 997                         "fsd f3, 8*3(%0)\n" \
 998                         "fsd f4, 8*4(%0)\n" \
 999                         "fsd f5, 8*5(%0)\n" \
1000                         "fsd f6, 8*6(%0)\n" \
1001                         "fsd f7, 8*7(%0)\n" \
1002                         "fsd f8, 8*8(%0)\n" \
1003                         "fsd f9, 8*9(%0)\n" \
1004                         "fsd f10, 8*10(%0)\n" \
1005                         "fsd f11, 8*11(%0)\n" \
1006                         "fsd f12, 8*12(%0)\n" \
1007                         "fsd f13, 8*13(%0)\n" \
1008                         "fsd f14, 8*14(%0)\n" \
1009                         "fsd f15, 8*15(%0)\n" \
1010                         "fsd f16, 8*16(%0)\n" \
1011                         "fsd f17, 8*17(%0)\n" \
1012                         "fsd f18, 8*18(%0)\n" \
1013                         "fsd f19, 8*19(%0)\n" \
1014                         "fsd f20, 8*20(%0)\n" \
1015                         "fsd f21, 8*21(%0)\n" \
1016                         "fsd f22, 8*22(%0)\n" \
1017                         "fsd f23, 8*23(%0)\n" \
1018                         "fsd f24, 8*24(%0)\n" \
1019                         "fsd f25, 8*25(%0)\n" \
1020                         "fsd f26, 8*26(%0)\n" \
1021                         "fsd f27, 8*27(%0)\n" \
1022                         "fsd f28, 8*28(%0)\n" \
1023                         "fsd f29, 8*29(%0)\n" \
1024                         "fsd f30, 8*30(%0)\n" \
1025                         "fsd f31, 8*31(%0)\n" \
1026                         "sw t0, 8*32(%0)\n" \
1027                         : \
1028                         : "r" (&(ctx).fregs) \
1029                         : "t0", "memory" \
1030                 ); \
1031                 __asm__ __volatile__ ( \
1032                         "auipc t0, 0\n" \
1033                         _RISCV_STR " t0, (%0)\n" \
1034                         : \
1035                         : "r" (&(ctx).gregs [0]) \
1036                         : "t0", "memory" \
1037                 ); \
1038         } while (0)
1039
1040 #define MONO_ARCH_HAS_MONO_CONTEXT (1)
1041
1042 #else
1043
1044 #error "Implement mono-context for the current arch"
1045
1046 #endif
1047
1048 /*
1049  * The naming is misleading, the SIGCTX argument should be the platform's context
1050  * structure (ucontext_c on posix, CONTEXT on windows).
1051  */
1052 void mono_sigctx_to_monoctx (void *sigctx, MonoContext *mctx);
1053
1054 /*
1055  * This will not completely initialize SIGCTX since MonoContext contains less
1056  * information that the system context. The caller should obtain a SIGCTX from
1057  * the system, and use this function to override the parts of it which are
1058  * also in MonoContext.
1059  */
1060 void mono_monoctx_to_sigctx (MonoContext *mctx, void *sigctx);
1061
1062 #endif /* __MONO_MONO_CONTEXT_H__ */