#include "mini.h"
#include "mini-amd64.h"
+#include "tasklets.h"
+#include "debug-mini.h"
#define ALIGN_TO(val,align) (((val) + ((align) - 1)) & ~((align) - 1))
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
static MonoW32ExceptionHandler fpe_handler;
static MonoW32ExceptionHandler ill_handler;
static MonoW32ExceptionHandler segv_handler;
static LPTOP_LEVEL_EXCEPTION_FILTER old_handler;
#define W32_SEH_HANDLE_EX(_ex) \
- if (_ex##_handler) _ex##_handler((int)sctx)
+ if (_ex##_handler) _ex##_handler(0, er, sctx)
/*
* Unhandled Exception Filter
}
}
-#endif /* PLATFORM_WIN32 */
+#endif /* TARGET_WIN32 */
/*
* mono_arch_get_restore_context:
amd64_mov_reg_membase (code, AMD64_R13, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoContext, r13), 8);
amd64_mov_reg_membase (code, AMD64_R14, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoContext, r14), 8);
amd64_mov_reg_membase (code, AMD64_R15, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoContext, r15), 8);
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
amd64_mov_reg_membase (code, AMD64_RDI, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoContext, rdi), 8);
amd64_mov_reg_membase (code, AMD64_RSI, AMD64_ARG_REG1, G_STRUCT_OFFSET (MonoContext, rsi), 8);
#endif
ctx.rcx = rcx;
ctx.rdx = rdx;
- if (!rethrow && mono_debugger_throw_exception ((gpointer)(rip - 8), (gpointer)rsp, exc)) {
- /*
- * The debugger wants us to stop on the `throw' instruction.
- * By the time we get here, it already inserted a breakpoint on
- * eip - 8 (which is the address of the `mov %r15,%rdi ; callq throw').
- */
-
- /* FIXME FIXME
- *
- * In case of a rethrow, the JIT is emitting code like this:
- *
- * mov 0xffffffffffffffd0(%rbp),%rax'
- * mov %rax,%rdi
- * callq throw
- *
- * Here, restore_context() wouldn't restore the %rax register correctly.
- */
- ctx.rip = rip - 8;
- ctx.rsp = rsp + 8;
- restore_context (&ctx);
- g_assert_not_reached ();
- }
-
- /* adjust eip so that it point into the call instruction */
- ctx.rip -= 1;
-
if (mono_object_isinst (exc, mono_defaults.exception_class)) {
MonoException *mono_ex = (MonoException*)exc;
if (!rethrow)
mono_ex->stack_trace = NULL;
}
+
+ if (mono_debug_using_mono_debugger ()) {
+ guint8 buf [16], *code;
+
+ mono_breakpoint_clean_code (NULL, (gpointer)rip, 8, buf, sizeof (buf));
+ code = buf + 8;
+
+ if (buf [3] == 0xe8) {
+ MonoContext ctx_cp = ctx;
+ ctx_cp.rip = rip - 5;
+
+ if (mono_debugger_handle_exception (&ctx_cp, exc)) {
+ restore_context (&ctx_cp);
+ g_assert_not_reached ();
+ }
+ }
+ }
+
+ /* adjust eip so that it point into the call instruction */
+ ctx.rip -= 1;
+
mono_handle_exception (&ctx, exc, (gpointer)rip, FALSE);
restore_context (&ctx);
/* Exception */
amd64_push_reg (code, AMD64_ARG_REG1);
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
/* align stack */
amd64_push_imm (code, 0);
amd64_push_imm (code, 0);
amd64_mov_reg_imm (code, AMD64_ARG_REG1, mono_defaults.exception_class->image);
amd64_mov_reg_imm (code, AMD64_R11, mono_exception_from_token);
}
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 32);
#endif
amd64_call_reg (code, AMD64_R11);
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
amd64_alu_reg_imm (code, X86_ADD, AMD64_RSP, 32);
#endif
return start;
}
-/* mono_arch_find_jit_info:
+/*
+ * mono_arch_find_jit_info_ext:
*
- * This function is used to gather information from @ctx. It return the
- * MonoJitInfo of the corresponding function, unwinds one stack frame and
- * stores the resulting context into @new_ctx. It also stores a string
- * describing the stack location into @trace (if not NULL), and modifies
- * the @lmf if necessary. @native_offset return the IP offset from the
- * start of the function or -1 if that info is not available.
+ * This function is used to gather information from @ctx, and store it in @frame_info.
+ * It unwinds one stack frame, and stores the resulting context into @new_ctx. @lmf
+ * is modified if needed.
+ * Returns TRUE on success, FALSE otherwise.
+ * This function is a version of mono_arch_find_jit_info () where all the results are
+ * returned in a StackFrameInfo structure.
*/
-MonoJitInfo *
-mono_arch_find_jit_info (MonoDomain *domain, MonoJitTlsData *jit_tls, MonoJitInfo *res, MonoJitInfo *prev_ji, MonoContext *ctx,
- MonoContext *new_ctx, MonoLMF **lmf, gboolean *managed)
+gboolean
+mono_arch_find_jit_info_ext (MonoDomain *domain, MonoJitTlsData *jit_tls,
+ MonoJitInfo *ji, MonoContext *ctx,
+ MonoContext *new_ctx, MonoLMF **lmf,
+ StackFrameInfo *frame)
{
- MonoJitInfo *ji;
gpointer ip = MONO_CONTEXT_GET_IP (ctx);
- /* Avoid costly table lookup during stack overflow */
- if (prev_ji && (ip > prev_ji->code_start && ((guint8*)ip < ((guint8*)prev_ji->code_start) + prev_ji->code_size)))
- ji = prev_ji;
- else
- ji = mono_jit_info_table_find (domain, ip);
-
- if (managed)
- *managed = FALSE;
+ memset (frame, 0, sizeof (StackFrameInfo));
+ frame->ji = ji;
+ frame->managed = FALSE;
*new_ctx = *ctx;
guint32 unwind_info_len;
guint8 *unwind_info;
- if (managed)
- if (!ji->method->wrapper_type)
- *managed = TRUE;
+ frame->type = FRAME_TYPE_MANAGED;
+
+ if (!ji->method->wrapper_type || ji->method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
+ frame->managed = TRUE;
if (ji->from_aot)
unwind_info = mono_aot_get_unwind_info (ji, &unwind_info_len);
if (*lmf && ((*lmf) != jit_tls->first_lmf) && (MONO_CONTEXT_GET_SP (ctx) >= (gpointer)(*lmf)->rsp)) {
/* remove any unused lmf */
- *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~1);
+ *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~3);
}
+#ifndef MONO_AMD64_NO_PUSHES
/* Pop arguments off the stack */
{
MonoJitArgumentInfo *arg_info = g_newa (MonoJitArgumentInfo, mono_method_signature (ji->method)->param_count + 1);
guint32 stack_to_pop = mono_arch_get_argument_info (mono_method_signature (ji->method), mono_method_signature (ji->method)->param_count, arg_info);
new_ctx->rsp += stack_to_pop;
}
+#endif
- return ji;
+ return TRUE;
} else if (*lmf) {
guint64 rip;
+ if (((guint64)(*lmf)->previous_lmf) & 2) {
+ /*
+ * This LMF entry is created by the soft debug code to mark transitions to
+ * managed code done during invokes.
+ */
+ MonoLMFExt *ext = (MonoLMFExt*)(*lmf);
+
+ g_assert (ext->debugger_invoke);
+
+ memcpy (new_ctx, &ext->ctx, sizeof (MonoContext));
+
+ *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~3);
+
+ frame->type = FRAME_TYPE_DEBUGGER_INVOKE;
+
+ return TRUE;
+ }
+
if (((guint64)(*lmf)->previous_lmf) & 1) {
/* This LMF has the rip field set */
rip = (*lmf)->rip;
} else if ((*lmf)->rsp == 0) {
/* Top LMF entry */
- return (gpointer)-1;
+ return FALSE;
} else {
/*
* The rsp field is set just before the call which transitioned to native
rip = *(guint64*)((*lmf)->rsp - sizeof (gpointer));
}
- ji = mono_jit_info_table_find (domain, (gpointer)rip);
+ ji = mini_jit_info_table_find (domain, (gpointer)rip, NULL);
if (!ji) {
// FIXME: This can happen with multiple appdomains (bug #444383)
- return (gpointer)-1;
+ return FALSE;
}
+ frame->ji = ji;
+ frame->type = FRAME_TYPE_MANAGED_TO_NATIVE;
+
new_ctx->rip = rip;
new_ctx->rbp = (*lmf)->rbp;
new_ctx->rsp = (*lmf)->rsp;
new_ctx->r13 = (*lmf)->r13;
new_ctx->r14 = (*lmf)->r14;
new_ctx->r15 = (*lmf)->r15;
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
new_ctx->rdi = (*lmf)->rdi;
new_ctx->rsi = (*lmf)->rsi;
#endif
- *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~1);
+ *lmf = (gpointer)(((guint64)(*lmf)->previous_lmf) & ~3);
- return ji ? ji : res;
+ return TRUE;
}
- return NULL;
+ return FALSE;
}
/**
mono_arch_sigctx_to_monoctx (sigctx, &mctx);
+ if (mono_debugger_handle_exception (&mctx, (MonoObject *)obj))
+ return TRUE;
+
mono_handle_exception (&mctx, obj, MONO_CONTEXT_GET_IP (&mctx), test_only);
mono_arch_monoctx_to_sigctx (&mctx, sigctx);
static inline guint64*
gregs_from_ucontext (ucontext_t *ctx)
{
-#ifdef __FreeBSD__
- guint64 *gregs = (guint64 *) &ctx->uc_mcontext;
-#else
- guint64 *gregs = (guint64 *) &ctx->uc_mcontext.gregs;
-#endif
-
- return gregs;
+ return (guint64 *) UCONTEXT_GREGS (ctx);
}
#endif
void
restore_context = mono_get_restore_context ();
mono_arch_sigctx_to_monoctx (sigctx, &mctx);
+
+ if (mono_debugger_handle_exception (&mctx, (MonoObject *)obj)) {
+ if (stack_ovf)
+ prepare_for_guard_pages (&mctx);
+ restore_context (&mctx);
+ }
+
mono_handle_exception (&mctx, obj, MONO_CONTEXT_GET_IP (&mctx), FALSE);
if (stack_ovf)
prepare_for_guard_pages (&mctx);
MonoException *exc = NULL;
ucontext_t *ctx = (ucontext_t*)sigctx;
guint64 *gregs = gregs_from_ucontext (ctx);
- MonoJitInfo *ji = mono_jit_info_table_find (mono_domain_get (), (gpointer)gregs [REG_RIP]);
+ MonoJitInfo *ji = mini_jit_info_table_find (mono_domain_get (), (gpointer)gregs [REG_RIP], NULL);
gpointer *sp;
int frame_size;
#endif
}
-static guint64
-get_original_ip (void)
+guint64
+mono_amd64_get_original_ip (void)
{
MonoLMF *lmf = mono_get_lmf ();
*ji = NULL;
- g_assert (!aot);
-
start = code = mono_global_codeman_reserve (128);
/* We are in the frame of a managed method after a call */
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8);
/* Obtain the pending exception */
- amd64_mov_reg_imm (code, AMD64_R11, mono_thread_get_and_clear_pending_exception);
+ if (aot) {
+ *ji = mono_patch_info_list_prepend (*ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_thread_get_and_clear_pending_exception");
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ } else {
+ amd64_mov_reg_imm (code, AMD64_R11, mono_thread_get_and_clear_pending_exception);
+ }
amd64_call_reg (code, AMD64_R11);
/* Check if it is NULL, and branch */
amd64_alu_reg_imm (code, X86_SUB, AMD64_RSP, 8);
/* Obtain the original ip and clear the flag in previous_lmf */
- amd64_mov_reg_imm (code, AMD64_R11, get_original_ip);
+ if (aot) {
+ *ji = mono_patch_info_list_prepend (*ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_amd64_get_original_ip");
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ } else {
+ amd64_mov_reg_imm (code, AMD64_R11, mono_amd64_get_original_ip);
+ }
amd64_call_reg (code, AMD64_R11);
/* Load exc */
amd64_push_reg (code, AMD64_RAX);
/* Call the throw trampoline */
- throw_trampoline = mono_get_throw_exception ();
- amd64_mov_reg_imm (code, AMD64_R11, throw_trampoline);
+ if (aot) {
+ *ji = mono_patch_info_list_prepend (*ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_amd64_throw_exception");
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ } else {
+ throw_trampoline = mono_get_throw_exception ();
+ amd64_mov_reg_imm (code, AMD64_R11, throw_trampoline);
+ }
/* We use a jump instead of a call so we can push the original ip on the stack */
amd64_jump_reg (code, AMD64_R11);
mono_amd64_patch (br [0], code);
/* Obtain the original ip and clear the flag in previous_lmf */
- amd64_mov_reg_imm (code, AMD64_R11, get_original_ip);
+ if (aot) {
+ *ji = mono_patch_info_list_prepend (*ji, code - start, MONO_PATCH_INFO_JIT_ICALL_ADDR, "mono_amd64_get_original_ip");
+ amd64_mov_reg_membase (code, AMD64_R11, AMD64_RIP, 0, 8);
+ } else {
+ amd64_mov_reg_imm (code, AMD64_R11, mono_amd64_get_original_ip);
+ }
amd64_call_reg (code, AMD64_R11);
amd64_mov_reg_reg (code, AMD64_R11, AMD64_RAX, 8);
guint32 code_size;
MonoJumpInfo *ji;
- /* Call this to avoid initialization races */
- throw_pending_exception = mono_arch_get_throw_pending_exception_full (&code_size, &ji, FALSE);
+ if (mono_aot_only) {
+ throw_pending_exception = mono_aot_get_named_code ("throw_pending_exception");
+ } else {
+ /* Call this to avoid initialization races */
+ throw_pending_exception = mono_arch_get_throw_pending_exception_full (&code_size, &ji, FALSE);
+ }
}
-#ifdef PLATFORM_WIN32
+#ifdef TARGET_WIN32
/*
* The mono_arch_unwindinfo* methods are used to build and add
PMonoUnwindInfo targetinfo;
MonoDomain *domain = mono_domain_get ();
- ji = mono_jit_info_table_find (domain, (char*)ControlPc);
+ ji = mini_jit_info_table_find (domain, (char*)ControlPc, NULL);
if (!ji)
return 0;
#endif
+#if MONO_SUPPORT_TASKLETS
+MonoContinuationRestore
+mono_tasklets_arch_restore (void)
+{
+ static guint8* saved = NULL;
+ guint8 *code, *start;
+ int cont_reg = AMD64_R9; /* register usable on both call conventions */
+
+ if (saved)
+ return (MonoContinuationRestore)saved;
+ code = start = mono_global_codeman_reserve (64);
+ /* the signature is: restore (MonoContinuation *cont, int state, MonoLMF **lmf_addr) */
+ /* cont is in AMD64_ARG_REG1 ($rcx or $rdi)
+ * state is in AMD64_ARG_REG2 ($rdx or $rsi)
+ * lmf_addr is in AMD64_ARG_REG3 ($r8 or $rdx)
+ * We move cont to cont_reg since we need both rcx and rdi for the copy
+ * state is moved to $rax so it's setup as the return value and we can overwrite $rsi
+ */
+ amd64_mov_reg_reg (code, cont_reg, MONO_AMD64_ARG_REG1, 8);
+ amd64_mov_reg_reg (code, AMD64_RAX, MONO_AMD64_ARG_REG2, 8);
+ /* setup the copy of the stack */
+ amd64_mov_reg_membase (code, AMD64_RCX, cont_reg, G_STRUCT_OFFSET (MonoContinuation, stack_used_size), sizeof (int));
+ amd64_shift_reg_imm (code, X86_SHR, AMD64_RCX, 3);
+ x86_cld (code);
+ amd64_mov_reg_membase (code, AMD64_RSI, cont_reg, G_STRUCT_OFFSET (MonoContinuation, saved_stack), sizeof (gpointer));
+ amd64_mov_reg_membase (code, AMD64_RDI, cont_reg, G_STRUCT_OFFSET (MonoContinuation, return_sp), sizeof (gpointer));
+ amd64_prefix (code, X86_REP_PREFIX);
+ amd64_movsl (code);
+
+ /* now restore the registers from the LMF */
+ amd64_mov_reg_membase (code, AMD64_RCX, cont_reg, G_STRUCT_OFFSET (MonoContinuation, lmf), 8);
+ amd64_mov_reg_membase (code, AMD64_RBX, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, rbx), 8);
+ amd64_mov_reg_membase (code, AMD64_RBP, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, rbp), 8);
+ amd64_mov_reg_membase (code, AMD64_R12, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, r12), 8);
+ amd64_mov_reg_membase (code, AMD64_R13, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, r13), 8);
+ amd64_mov_reg_membase (code, AMD64_R14, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, r14), 8);
+ amd64_mov_reg_membase (code, AMD64_R15, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, r15), 8);
+#ifdef TARGET_WIN32
+ amd64_mov_reg_membase (code, AMD64_RDI, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, rdi), 8);
+ amd64_mov_reg_membase (code, AMD64_RSI, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, rsi), 8);
+#endif
+ amd64_mov_reg_membase (code, AMD64_RSP, AMD64_RCX, G_STRUCT_OFFSET (MonoLMF, rsp), 8);
+
+ /* restore the lmf chain */
+ /*x86_mov_reg_membase (code, X86_ECX, X86_ESP, 12, 4);
+ x86_mov_membase_reg (code, X86_ECX, 0, X86_EDX, 4);*/
+ /* state is already in rax */
+ amd64_jump_membase (code, cont_reg, G_STRUCT_OFFSET (MonoContinuation, return_ip));
+ g_assert ((code - start) <= 64);
+ saved = start;
+ return (MonoContinuationRestore)saved;
+}
+#endif
projects / mono.git / blobdiff