#include <mono/metadata/marshal.h>
#include <mono/metadata/tabledefs.h>
#include <mono/metadata/mono-debug-debugger.h>
-#include <mono/metadata/monitor.h>
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/gc-internal.h>
#include <mono/arch/amd64/amd64-codegen.h>
return start;
}
+#ifdef _WIN64
+// Workaround lack of Valgrind support for 64-bit Windows
+#define VALGRIND_DISCARD_TRANSLATIONS(...)
+#endif
+
/*
* mono_arch_patch_callsite:
*
//amd64_breakpoint (code);
#endif
- if (tramp_type != MONO_TRAMPOLINE_MONITOR_ENTER &&
- tramp_type != MONO_TRAMPOLINE_MONITOR_ENTER_V4 &&
- tramp_type != MONO_TRAMPOLINE_MONITOR_EXIT &&
- tramp_type != MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD) {
+ if (tramp_type != MONO_TRAMPOLINE_HANDLER_BLOCK_GUARD) {
/* Obtain the trampoline argument which is encoded in the instruction stream */
if (aot) {
/* Load the GOT offset */
return buf;
}
-#ifdef MONO_ARCH_MONITOR_OBJECT_REG
-
-gpointer
-mono_arch_create_monitor_enter_trampoline (MonoTrampInfo **info, gboolean is_v4, gboolean aot)
-{
- guint8 *tramp;
- guint8 *code, *buf;
- guint8 *jump_obj_null, *jump_sync_null, *jump_cmpxchg_failed, *jump_other_owner, *jump_tid, *jump_sync_thin_hash = NULL;
- guint8 *jump_lock_taken_true = NULL;
- int tramp_size;
- int status_offset, nest_offset;
- MonoJumpInfo *ji = NULL;
- GSList *unwind_ops;
- int obj_reg = MONO_AMD64_ARG_REG1;
- int lock_taken_reg = MONO_AMD64_ARG_REG2;
- int sync_reg = MONO_AMD64_ARG_REG3;
- int tid_reg = MONO_AMD64_ARG_REG4;
- int status_reg = AMD64_RAX;
-
- g_assert (MONO_ARCH_MONITOR_OBJECT_REG == obj_reg);
-#ifdef MONO_ARCH_MONITOR_LOCK_TAKEN_REG
- g_assert (MONO_ARCH_MONITOR_LOCK_TAKEN_REG == lock_taken_reg);
-#else
- g_assert (!is_v4);
-#endif
-
- mono_monitor_threads_sync_members_offset (&status_offset, &nest_offset);
- g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (status_offset) == sizeof (guint32));
- g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (nest_offset) == sizeof (guint32));
- status_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (status_offset);
- nest_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (nest_offset);
-
- tramp_size = 128;
-
- code = buf = mono_global_codeman_reserve (tramp_size);
-
- unwind_ops = mono_arch_get_cie_program ();
-
- if (!aot && mono_thread_get_tls_offset () != -1) {
- /* MonoObject* obj is in obj_reg */
- /* is obj null? */
- amd64_test_reg_reg (code, obj_reg, obj_reg);
- /* if yes, jump to actual trampoline */
- jump_obj_null = code;
- amd64_branch8 (code, X86_CC_Z, -1, 1);
-
- if (is_v4) {
- amd64_test_membase_imm (code, lock_taken_reg, 0, 1);
- /* if *lock_taken is 1, jump to actual trampoline */
- jump_lock_taken_true = code;
- x86_branch8 (code, X86_CC_NZ, -1, 1);
- }
-
- /* load obj->synchronization to sync_reg */
- amd64_mov_reg_membase (code, sync_reg, obj_reg, MONO_STRUCT_OFFSET (MonoObject, synchronisation), 8);
-
- if (mono_gc_is_moving ()) {
- /*if bit zero is set it's a thin hash*/
- /*FIXME use testb encoding*/
- amd64_test_reg_imm (code, sync_reg, 0x01);
- jump_sync_thin_hash = code;
- amd64_branch8 (code, X86_CC_NE, -1, 1);
-
- /*clear bits used by the gc*/
- amd64_alu_reg_imm (code, X86_AND, sync_reg, ~0x3);
- }
-
- /* is synchronization null? */
- amd64_test_reg_reg (code, sync_reg, sync_reg);
- /* if yes, jump to actual trampoline */
- jump_sync_null = code;
- amd64_branch8 (code, X86_CC_Z, -1, 1);
-
- /* load MonoInternalThread* into tid_reg */
- code = mono_amd64_emit_tls_get (code, tid_reg, mono_thread_get_tls_offset ());
- /* load TID into tid_reg */
- amd64_mov_reg_membase (code, tid_reg, tid_reg, MONO_STRUCT_OFFSET (MonoInternalThread, small_id), 4);
-
- /* is synchronization->owner free */
- amd64_mov_reg_membase (code, status_reg, sync_reg, status_offset, 4);
- amd64_test_reg_imm_size (code, status_reg, OWNER_MASK, 4);
- /* if not, jump to next case */
- jump_tid = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
-
- /* if yes, try a compare-exchange with the TID */
- g_assert (tid_reg != X86_EAX);
- /* Form new status in tid_reg */
- amd64_alu_reg_reg_size (code, X86_OR, tid_reg, status_reg, 4);
- /* compare and exchange */
- amd64_prefix (code, X86_LOCK_PREFIX);
- amd64_cmpxchg_membase_reg_size (code, sync_reg, status_offset, tid_reg, 4);
- /* if not successful, jump to actual trampoline */
- jump_cmpxchg_failed = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
- /* if successful, return */
- if (is_v4)
- amd64_mov_membase_imm (code, lock_taken_reg, 0, 1, 1);
- amd64_ret (code);
-
- /* next case: synchronization->owner is not null */
- x86_patch (jump_tid, code);
- /* is synchronization->owner == TID? */
- amd64_alu_reg_imm_size (code, X86_AND, status_reg, OWNER_MASK, 4);
- amd64_alu_reg_reg_size (code, X86_CMP, status_reg, tid_reg, 4);
- /* if not, jump to actual trampoline */
- jump_other_owner = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
- /* if yes, increment nest */
- amd64_inc_membase_size (code, sync_reg, nest_offset, 4);
- /* return */
- if (is_v4)
- amd64_mov_membase_imm (code, lock_taken_reg, 0, 1, 1);
- amd64_ret (code);
-
- x86_patch (jump_obj_null, code);
- if (jump_sync_thin_hash)
- x86_patch (jump_sync_thin_hash, code);
- x86_patch (jump_sync_null, code);
- x86_patch (jump_cmpxchg_failed, code);
- x86_patch (jump_other_owner, code);
- if (is_v4)
- x86_patch (jump_lock_taken_true, code);
- }
-
- /* jump to the actual trampoline */
- if (MONO_AMD64_ARG_REG1 != obj_reg)
- amd64_mov_reg_reg (code, MONO_AMD64_ARG_REG1, obj_reg, sizeof (mgreg_t));
-
- if (aot) {
- if (is_v4)
- code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_enter_v4");
- else
- code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_enter");
- amd64_jump_reg (code, AMD64_R11);
- } else {
- if (is_v4)
- tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER_V4, mono_get_root_domain (), NULL);
- else
- tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_ENTER, mono_get_root_domain (), NULL);
-
- /* jump to the actual trampoline */
- amd64_jump_code (code, tramp);
- }
-
- nacl_global_codeman_validate (&buf, tramp_size, &code);
-
- mono_arch_flush_icache (code, code - buf);
- mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_MONITOR, NULL);
- g_assert (code - buf <= tramp_size);
-
- if (is_v4)
- *info = mono_tramp_info_create ("monitor_enter_v4_trampoline", buf, code - buf, ji, unwind_ops);
- else
- *info = mono_tramp_info_create ("monitor_enter_trampoline", buf, code - buf, ji, unwind_ops);
-
- return buf;
-}
-
-gpointer
-mono_arch_create_monitor_exit_trampoline (MonoTrampInfo **info, gboolean aot)
-{
- guint8 *tramp;
- guint8 *code, *buf;
- guint8 *jump_obj_null, *jump_have_waiters, *jump_sync_null, *jump_not_owned, *jump_cmpxchg_failed;
- guint8 *jump_next, *jump_sync_thin_hash = NULL;
- int tramp_size;
- int status_offset, nest_offset;
- MonoJumpInfo *ji = NULL;
- GSList *unwind_ops;
- int obj_reg = MONO_AMD64_ARG_REG1;
- int sync_reg = MONO_AMD64_ARG_REG2;
- int status_reg = MONO_AMD64_ARG_REG3;
-
- g_assert (obj_reg == MONO_ARCH_MONITOR_OBJECT_REG);
-
- mono_monitor_threads_sync_members_offset (&status_offset, &nest_offset);
- g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (status_offset) == sizeof (guint32));
- g_assert (MONO_THREADS_SYNC_MEMBER_SIZE (nest_offset) == sizeof (guint32));
- status_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (status_offset);
- nest_offset = MONO_THREADS_SYNC_MEMBER_OFFSET (nest_offset);
-
- tramp_size = 112;
-
- code = buf = mono_global_codeman_reserve (tramp_size);
-
- unwind_ops = mono_arch_get_cie_program ();
-
- if (!aot && mono_thread_get_tls_offset () != -1) {
- /* MonoObject* obj is in obj_reg */
- /* is obj null? */
- amd64_test_reg_reg (code, obj_reg, obj_reg);
- /* if yes, jump to actual trampoline */
- jump_obj_null = code;
- amd64_branch8 (code, X86_CC_Z, -1, 1);
-
- /* load obj->synchronization to RCX */
- amd64_mov_reg_membase (code, sync_reg, obj_reg, MONO_STRUCT_OFFSET (MonoObject, synchronisation), 8);
-
- if (mono_gc_is_moving ()) {
- /*if bit zero is set it's a thin hash*/
- /*FIXME use testb encoding*/
- amd64_test_reg_imm (code, sync_reg, 0x01);
- jump_sync_thin_hash = code;
- amd64_branch8 (code, X86_CC_NE, -1, 1);
-
- /*clear bits used by the gc*/
- amd64_alu_reg_imm (code, X86_AND, sync_reg, ~0x3);
- }
-
- /* is synchronization null? */
- amd64_test_reg_reg (code, sync_reg, sync_reg);
- /* if yes, jump to actual trampoline */
- jump_sync_null = code;
- amd64_branch8 (code, X86_CC_Z, -1, 1);
-
- /* next case: synchronization is not null */
- /* load MonoInternalThread* into RAX */
- code = mono_amd64_emit_tls_get (code, AMD64_RAX, mono_thread_get_tls_offset ());
- /* load TID into RAX */
- amd64_mov_reg_membase (code, AMD64_RAX, AMD64_RAX, MONO_STRUCT_OFFSET (MonoInternalThread, small_id), 4);
- /* is synchronization->owner == TID */
- amd64_mov_reg_membase (code, status_reg, sync_reg, status_offset, 4);
- amd64_alu_reg_reg_size (code, X86_XOR, AMD64_RAX, status_reg, 4);
- amd64_test_reg_imm_size (code, AMD64_RAX, OWNER_MASK, 4);
-
- /* if no, jump to actual trampoline */
- jump_not_owned = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
-
- /* next case: synchronization->owner == TID */
- /* is synchronization->nest == 1 */
- amd64_alu_membase_imm_size (code, X86_CMP, sync_reg, nest_offset, 1, 4);
- /* if not, jump to next case */
- jump_next = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
- /* if yes, is synchronization->entry_count greater than zero */
- amd64_test_reg_imm_size (code, status_reg, ENTRY_COUNT_WAITERS, 4);
- /* if not, jump to actual trampoline */
- jump_have_waiters = code;
- amd64_branch8 (code, X86_CC_NZ, -1 , 1);
- /* if yes, try to set synchronization->owner to null and return */
- g_assert (status_reg != AMD64_RAX);
- /* old status in RAX */
- amd64_mov_reg_reg (code, AMD64_RAX, status_reg, 4);
- /* form new status */
- amd64_alu_reg_imm_size (code, X86_AND, status_reg, ENTRY_COUNT_MASK, 4);
- /* compare and exchange */
- amd64_prefix (code, X86_LOCK_PREFIX);
- amd64_cmpxchg_membase_reg_size (code, sync_reg, status_offset, status_reg, 4);
- /* if not successful, jump to actual trampoline */
- jump_cmpxchg_failed = code;
- amd64_branch8 (code, X86_CC_NZ, -1, 1);
- amd64_ret (code);
-
- /* next case: synchronization->nest is not 1 */
- x86_patch (jump_next, code);
- /* decrease synchronization->nest and return */
- amd64_dec_membase_size (code, sync_reg, nest_offset, 4);
- amd64_ret (code);
-
- if (jump_sync_thin_hash)
- x86_patch (jump_sync_thin_hash, code);
- x86_patch (jump_obj_null, code);
- x86_patch (jump_have_waiters, code);
- x86_patch (jump_not_owned, code);
- x86_patch (jump_cmpxchg_failed, code);
- x86_patch (jump_sync_null, code);
- }
-
- /* jump to the actual trampoline */
- if (MONO_AMD64_ARG_REG1 != obj_reg)
- amd64_mov_reg_reg (code, MONO_AMD64_ARG_REG1, obj_reg, sizeof (mgreg_t));
-
- if (aot) {
- code = mono_arch_emit_load_aotconst (buf, code, &ji, MONO_PATCH_INFO_JIT_ICALL_ADDR, "specific_trampoline_monitor_exit");
- amd64_jump_reg (code, AMD64_R11);
- } else {
- tramp = mono_arch_create_specific_trampoline (NULL, MONO_TRAMPOLINE_MONITOR_EXIT, mono_get_root_domain (), NULL);
- amd64_jump_code (code, tramp);
- }
-
- nacl_global_codeman_validate (&buf, tramp_size, &code);
-
- mono_arch_flush_icache (code, code - buf);
- mono_profiler_code_buffer_new (buf, code - buf, MONO_PROFILER_CODE_BUFFER_MONITOR, NULL);
- g_assert (code - buf <= tramp_size);
-
- *info = mono_tramp_info_create ("monitor_exit_trampoline", buf, code - buf, ji, unwind_ops);
-
- return buf;
-}
-
-#else
-
-gpointer
-mono_arch_create_monitor_enter_trampoline (MonoTrampInfo **info, gboolean is_v4, gboolean aot)
-{
- g_assert_not_reached ();
- return NULL;
-}
-
-gpointer
-mono_arch_create_monitor_exit_trampoline (MonoTrampInfo **info, gboolean aot)
-{
- g_assert_not_reached ();
- return NULL;
-}
-
-#endif
-
void
mono_arch_invalidate_method (MonoJitInfo *ji, void *func, gpointer func_arg)
{
code = buf = mono_global_codeman_reserve (tramp_size);
- framesize = sizeof (MonoContext);
+ framesize = 0;
+#ifdef TARGET_WIN32
+ /* Reserve space where the callee can save the argument registers */
+ framesize += 4 * sizeof (mgreg_t);
+#endif
+
+ ctx_offset = framesize;
+ framesize += sizeof (MonoContext);
+
framesize = ALIGN_TO (framesize, MONO_ARCH_FRAME_ALIGNMENT);
// CFA = sp + 8
mono_add_unwind_op_def_cfa_reg (unwind_ops, code, buf, AMD64_RBP);
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, framesize);
- ctx_offset = 0;
gregs_offset = ctx_offset + MONO_STRUCT_OFFSET (MonoContext, gregs);
/* Initialize a MonoContext structure on the stack */
projects / mono.git / blobdiff