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/**
* \file
*
* Runtime declarations for the JIT.
*
* Copyright 2002-2003 Ximian Inc
* Copyright 2003-2011 Novell Inc
* Copyright 2011 Xamarin Inc
* Licensed under the MIT license. See LICENSE file in the project root for full license information.
*/
#ifndef __MONO_MINI_RUNTIME_H__
#define __MONO_MINI_RUNTIME_H__
#include "mini.h"
#include "ee.h"
/* Per-domain information maintained by the JIT */
typedef struct
{
/* Maps MonoMethod's to a GSList of GOT slot addresses pointing to its code */
GHashTable *jump_target_got_slot_hash;
GHashTable *jump_target_hash;
/* Maps methods/klasses to the address of the given type of trampoline */
GHashTable *class_init_trampoline_hash;
GHashTable *jump_trampoline_hash;
GHashTable *jit_trampoline_hash;
GHashTable *delegate_trampoline_hash;
/* Maps ClassMethodPair -> MonoDelegateTrampInfo */
GHashTable *static_rgctx_trampoline_hash;
GHashTable *llvm_vcall_trampoline_hash;
/* maps MonoMethod -> MonoJitDynamicMethodInfo */
GHashTable *dynamic_code_hash;
GHashTable *method_code_hash;
/* Maps methods to a RuntimeInvokeInfo structure, protected by the associated MonoDomain lock */
MonoConcurrentHashTable *runtime_invoke_hash;
/* Maps MonoMethod to a GPtrArray containing sequence point locations */
/* Protected by the domain lock */
GHashTable *seq_points;
/* Debugger agent data */
gpointer agent_info;
/* Maps MonoMethod to an arch-specific structure */
GHashTable *arch_seq_points;
/* Maps a GSharedVtTrampInfo structure to a trampoline address */
GHashTable *gsharedvt_arg_tramp_hash;
/* memcpy/bzero methods specialized for small constant sizes */
gpointer *memcpy_addr [17];
gpointer *bzero_addr [17];
gpointer llvm_module;
/* Maps MonoMethod -> GSlist of addresses */
GHashTable *llvm_jit_callees;
/* Maps MonoMethod -> RuntimeMethod */
MonoInternalHashTable interp_code_hash;
/* Maps MonoMethod -> MonoMethodRuntimeGenericContext */
GHashTable *mrgctx_hash;
GHashTable *method_rgctx_hash;
/* Maps gpointer -> InterpMethod */
GHashTable *interp_method_pointer_hash;
} MonoJitDomainInfo;
#define domain_jit_info(domain) ((MonoJitDomainInfo*)((domain)->runtime_info))
/*
* Stores state need to resume exception handling when using LLVM
*/
typedef struct {
MonoJitInfo *ji;
int clause_index;
MonoContext ctx, new_ctx;
/* FIXME: GC */
gpointer ex_obj;
MonoLMF *lmf;
int first_filter_idx, filter_idx;
} ResumeState;
typedef void (*MonoAbortFunction)(MonoObject*);
struct MonoJitTlsData {
gpointer end_of_stack;
guint32 stack_size;
MonoLMF *lmf;
MonoLMF *first_lmf;
guint handling_stack_ovf : 1;
gpointer signal_stack;
guint32 signal_stack_size;
gpointer stack_ovf_guard_base;
guint32 stack_ovf_guard_size;
guint stack_ovf_valloced : 1;
guint stack_ovf_pending : 1;
MonoAbortFunction abort_func;
/* Used to implement --debug=casts */
MonoClass *class_cast_from, *class_cast_to;
/* Stores state needed by handler block with a guard */
MonoContext ex_ctx;
ResumeState resume_state;
/* handler block been guarded. It's safe to store this even for dynamic methods since there
is an activation on stack making sure it will remain alive.*/
MonoJitExceptionInfo *handler_block;
/* context to be used by the guard trampoline when resuming interruption.*/
MonoContext handler_block_context;
/*
* Stores the state at the exception throw site to be used by mono_stack_walk ()
* when it is called from profiler functions during exception handling.
*/
MonoContext orig_ex_ctx;
gboolean orig_ex_ctx_set;
/*
* The current exception in flight
*/
guint32 thrown_exc;
/*
* If the current exception is not a subclass of Exception,
* the original exception.
*/
guint32 thrown_non_exc;
/*
* The calling assembly in llvmonly mode.
*/
MonoImage *calling_image;
/*
* The stack frame "high water mark" for ThreadAbortExceptions.
* We will rethrow the exception upon exiting a catch clause that's
* in a function stack frame above the water mark(isn't being called by
* the catch block that caught the ThreadAbortException).
*/
gpointer abort_exc_stack_threshold;
/*
* List of methods being JIT'd in the current thread.
*/
int active_jit_methods;
gpointer interp_context;
#if defined(TARGET_WIN32)
MonoContext stack_restore_ctx;
#endif
};
#define MONO_LMFEXT_DEBUGGER_INVOKE 1
#define MONO_LMFEXT_INTERP_EXIT 2
#define MONO_LMFEXT_INTERP_EXIT_WITH_CTX 3
/*
* This structure is an extension of MonoLMF and contains extra information.
*/
typedef struct {
struct MonoLMF lmf;
int kind;
MonoContext ctx; /* valid if kind == DEBUGGER_INVOKE || kind == INTERP_EXIT_WITH_CTX */
gpointer interp_exit_data; /* valid if kind == INTERP_EXIT || kind == INTERP_EXIT_WITH_CTX */
#if defined (_MSC_VER)
gboolean interp_exit_label_set;
#endif
} MonoLMFExt;
typedef void (*MonoFtnPtrEHCallback) (guint32 gchandle);
typedef struct MonoDebugOptions {
gboolean handle_sigint;
gboolean keep_delegates;
gboolean reverse_pinvoke_exceptions;
gboolean collect_pagefault_stats;
gboolean break_on_unverified;
gboolean better_cast_details;
gboolean mdb_optimizations;
gboolean no_gdb_backtrace;
gboolean suspend_on_native_crash;
gboolean suspend_on_exception;
gboolean suspend_on_unhandled;
gboolean dyn_runtime_invoke;
gboolean gdb;
gboolean lldb;
/*
* With LLVM codegen, this option will cause methods to be called indirectly through the
* PLT (As they are in other FullAOT modes, without LLVM).
*
* Enable this to debug problems with direct calls in llvm
*/
gboolean llvm_disable_self_init;
/*
* Prevent LLVM from inlining any methods
*/
gboolean llvm_disable_inlining;
gboolean llvm_disable_implicit_null_checks;
gboolean use_fallback_tls;
/*
* Whenever data such as next sequence points and flags is required.
* Next sequence points and flags are required by the debugger agent.
*/
gboolean gen_sdb_seq_points;
gboolean no_seq_points_compact_data;
/*
* Setting single_imm_size should guarantee that each time managed code is compiled
* the same instructions and registers are used, regardless of the size of used values.
*/
gboolean single_imm_size;
gboolean explicit_null_checks;
/*
* Fill stack frames with 0x2a in method prologs. This helps with the
* debugging of the stack marking code in the GC.
*/
gboolean init_stacks;
/*
* Whenever to implement single stepping and breakpoints without signals in the
* soft debugger. This is useful on platforms without signals, like the ps3, or during
* runtime debugging, since it avoids SIGSEGVs when a single step location or breakpoint
* is hit.
*/
gboolean soft_breakpoints;
/*
* Whenever to break in the debugger using G_BREAKPOINT on unhandled exceptions.
*/
gboolean break_on_exc;
/*
* Load AOT JIT info eagerly.
*/
gboolean load_aot_jit_info_eagerly;
/*
* Check for pinvoke calling convention mismatches.
*/
gboolean check_pinvoke_callconv;
/*
* Translate Debugger.Break () into a native breakpoint signal
*/
gboolean native_debugger_break;
/*
* Disabling the frame pointer emit optimization can allow debuggers to more easily
* identify the stack on some platforms
*/
gboolean disable_omit_fp;
/*
* Make gdb output on native crashes more verbose.
*/
gboolean verbose_gdb;
// Internal testing feature.
gboolean test_tailcall_require;
/*
* Don't enforce any memory model. We will assume the architecture's memory model.
*/
gboolean weak_memory_model;
/*
* Internal testing feature
* Testing feature, skip loading the Nth aot loadable method.
*/
gboolean aot_skip_set;
int aot_skip;
/*
* Treat exceptions which reach the topmost runtime invoke as unhandled when
* embedding.
*/
gboolean top_runtime_invoke_unhandled;
} MonoDebugOptions;
/*
* We need to store the image which the token refers to along with the token,
* since the image might not be the same as the image of the method which
* contains the relocation, because of inlining.
*/
typedef struct MonoJumpInfoToken {
MonoImage *image;
guint32 token;
gboolean has_context;
MonoGenericContext context;
} MonoJumpInfoToken;
typedef struct MonoJumpInfoBBTable {
MonoBasicBlock **table;
int table_size;
} MonoJumpInfoBBTable;
/* Contains information describing an LLVM IMT trampoline */
typedef struct MonoJumpInfoImtTramp {
MonoMethod *method;
int vt_offset;
} MonoJumpInfoImtTramp;
/*
* Contains information for computing the
* property given by INFO_TYPE of the runtime
* object described by DATA.
*/
struct MonoJumpInfoRgctxEntry {
union {
/* If in_mrgctx is TRUE */
MonoMethod *method;
/* If in_mrgctx is FALSE */
MonoClass *klass;
} d;
gboolean in_mrgctx;
MonoJumpInfo *data; /* describes the data to be loaded */
MonoRgctxInfoType info_type;
};
/* Contains information about a gsharedvt call */
struct MonoJumpInfoGSharedVtCall {
/* The original signature of the call */
MonoMethodSignature *sig;
/* The method which is called */
MonoMethod *method;
};
/*
* Represents the method which is called when a virtual call is made to METHOD
* on a receiver of type KLASS.
*/
typedef struct {
/* Receiver class */
MonoClass *klass;
/* Virtual method */
MonoMethod *method;
} MonoJumpInfoVirtMethod;
struct MonoJumpInfo {
MonoJumpInfo *next;
/* Relocation type for patching */
int relocation;
union {
int i;
guint8 *p;
MonoInst *label;
} ip;
MonoJumpInfoType type;
union {
// In order to allow blindly using target in mono_add_patch_info,
// all fields must be pointer-sized. No ints, no untyped enums.
gconstpointer target;
gssize index; // only 32 bits used but widened per above
gsize uindex; // only 32 bits used but widened per above
MonoBasicBlock *bb;
MonoInst *inst;
MonoMethod *method;
MonoClass *klass;
MonoClassField *field;
MonoImage *image;
MonoVTable *vtable;
const char *name;
gsize jit_icall_id; // MonoJitICallId, 9 bits, but widened per above.
MonoJumpInfoToken *token;
MonoJumpInfoBBTable *table;
MonoJumpInfoRgctxEntry *rgctx_entry;
MonoJumpInfoImtTramp *imt_tramp;
MonoJumpInfoGSharedVtCall *gsharedvt;
MonoGSharedVtMethodInfo *gsharedvt_method;
MonoMethodSignature *sig;
MonoDelegateClassMethodPair *del_tramp;
/* MONO_PATCH_INFO_VIRT_METHOD */
MonoJumpInfoVirtMethod *virt_method;
} data;
};
extern gboolean mono_break_on_exc;
extern gboolean mono_compile_aot;
extern gboolean mono_aot_only;
extern gboolean mono_llvm_only;
extern MonoAotMode mono_aot_mode;
MONO_API_DATA const char *mono_build_date;
extern gboolean mono_do_signal_chaining;
extern gboolean mono_do_crash_chaining;
MONO_API_DATA gboolean mono_use_llvm;
MONO_API_DATA gboolean mono_use_fast_math;
MONO_API_DATA gboolean mono_use_interpreter;
MONO_API_DATA MonoCPUFeatures mono_cpu_features_enabled;
MONO_API_DATA MonoCPUFeatures mono_cpu_features_disabled;
extern const char* mono_interp_opts_string;
extern gboolean mono_do_single_method_regression;
extern guint32 mono_single_method_regression_opt;
extern MonoMethod *mono_current_single_method;
extern GSList *mono_single_method_list;
extern GHashTable *mono_single_method_hash;
extern GList* mono_aot_paths;
extern MonoDebugOptions mini_debug_options;
extern GSList *mono_interp_only_classes;
extern char *sdb_options;
extern MonoMethodDesc *mono_stats_method_desc;
/*
This struct describes what execution engine feature to use.
This subsume, and will eventually sunset, mono_aot_only / mono_llvm_only and friends.
The goal is to transition us to a place were we can more easily compose/describe what features we need for a given execution mode.
A good feature flag is checked alone, a bad one described many things and keeps breaking some of the modes
*/
typedef struct {
/*
* If true, trampolines are to be fetched from the AOT runtime instead of JIT compiled
*/
gboolean use_aot_trampolines;
/*
* If true, the runtime will try to use the interpreter before looking for compiled code.
*/
gboolean force_use_interpreter;
} MonoEEFeatures;
extern MonoEEFeatures mono_ee_features;
//XXX this enum *MUST extend MonoAotMode as they are consumed together.
typedef enum {
/* Always execute with interp, will use JIT to produce trampolines */
MONO_EE_MODE_INTERP = MONO_AOT_MODE_LAST,
} MonoEEMode;
static inline MonoMethod*
jinfo_get_method (MonoJitInfo *ji)
{
return mono_jit_info_get_method (ji);
}
/* main function */
MONO_API int mono_main (int argc, char* argv[]);
MONO_API void mono_set_defaults (int verbose_level, guint32 opts);
MONO_API void mono_parse_env_options (int *ref_argc, char **ref_argv []);
MONO_API char *mono_parse_options_from (const char *options, int *ref_argc, char **ref_argv []);
MONO_API int mono_regression_test_step (int verbose_level, const char *image, const char *method_name);
void mono_runtime_print_stats (void);
void mono_interp_stub_init (void);
void mini_install_interp_callbacks (const MonoEECallbacks *cbs);
extern const
MonoEECallbacks* mono_interp_callbacks_pointer;
#define mini_get_interp_callbacks() (mono_interp_callbacks_pointer)
typedef struct _MonoDebuggerCallbacks MonoDebuggerCallbacks;
void mini_install_dbg_callbacks (MonoDebuggerCallbacks *cbs);
MonoDebuggerCallbacks *mini_get_dbg_callbacks (void);
MonoDomain* mini_init (const char *filename, const char *runtime_version);
void mini_cleanup (MonoDomain *domain);
MONO_API MonoDebugOptions *mini_get_debug_options (void);
MONO_API gboolean mini_parse_debug_option (const char *option);
MONO_API void
mono_install_ftnptr_eh_callback (MonoFtnPtrEHCallback callback);
void mini_jit_init (void);
void mini_jit_cleanup (void);
void mono_disable_optimizations (guint32 opts);
void mono_set_optimizations (guint32 opts);
void mono_precompile_assemblies (void);
MONO_API int mono_parse_default_optimizations (const char* p);
gboolean mono_running_on_valgrind (void);
MonoLMF * mono_get_lmf (void);
void mono_set_lmf (MonoLMF *lmf);
void mono_push_lmf (MonoLMFExt *ext);
void mono_pop_lmf (MonoLMF *lmf);
MONO_API void mono_jit_set_domain (MonoDomain *domain);
gboolean mono_method_same_domain (MonoJitInfo *caller, MonoJitInfo *callee);
gpointer mono_create_ftnptr (MonoDomain *domain, gpointer addr);
MONO_LLVM_INTERNAL MonoMethod* mono_icall_get_wrapper_method (MonoJitICallInfo* callinfo);
MONO_LLVM_INTERNAL gconstpointer mono_icall_get_wrapper (MonoJitICallInfo* callinfo);
MONO_LLVM_INTERNAL gconstpointer mono_icall_get_wrapper_full (MonoJitICallInfo* callinfo, gboolean do_compile);
MonoJumpInfo* mono_patch_info_dup_mp (MonoMemPool *mp, MonoJumpInfo *patch_info);
MONO_LLVM_INTERNAL guint mono_patch_info_hash (gconstpointer data);
MONO_LLVM_INTERNAL gint mono_patch_info_equal (gconstpointer ka, gconstpointer kb);
MonoJumpInfo *mono_patch_info_list_prepend (MonoJumpInfo *list, int ip, MonoJumpInfoType type, gconstpointer target);
MonoJumpInfoToken* mono_jump_info_token_new (MonoMemPool *mp, MonoImage *image, guint32 token);
MonoJumpInfoToken* mono_jump_info_token_new2 (MonoMemPool *mp, MonoImage *image, guint32 token, MonoGenericContext *context);
MONO_LLVM_INTERNAL gpointer mono_resolve_patch_target (MonoMethod *method, MonoDomain *domain, guint8 *code, MonoJumpInfo *patch_info, gboolean run_cctors, MonoError *error);
void mini_register_jump_site (MonoDomain *domain, MonoMethod *method, gpointer ip);
void mini_patch_jump_sites (MonoDomain *domain, MonoMethod *method, gpointer addr);
void mini_patch_llvm_jit_callees (MonoDomain *domain, MonoMethod *method, gpointer addr);
gpointer mono_jit_search_all_backends_for_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji);
gpointer mono_jit_find_compiled_method_with_jit_info (MonoDomain *domain, MonoMethod *method, MonoJitInfo **ji);
gpointer mono_jit_find_compiled_method (MonoDomain *domain, MonoMethod *method);
MONO_LLVM_INTERNAL gpointer mono_jit_compile_method (MonoMethod *method, MonoError *error);
gpointer mono_jit_compile_method_jit_only (MonoMethod *method, MonoError *error);
void mono_set_bisect_methods (guint32 opt, const char *method_list_filename);
guint32 mono_get_optimizations_for_method (MonoMethod *method, guint32 default_opt);
char* mono_opt_descr (guint32 flags);
void mono_set_verbose_level (guint32 level);
MONO_LLVM_INTERNAL const char*mono_ji_type_to_string (MonoJumpInfoType type);
void mono_print_ji (const MonoJumpInfo *ji);
MONO_API void mono_print_method_from_ip (void *ip);
MONO_API char *mono_pmip (void *ip);
MONO_API int mono_ee_api_version (void);
gboolean mono_debug_count (void);
#ifdef __linux__
#define XDEBUG_ENABLED 1
#endif
#ifdef __linux__
/* maybe enable also for other systems? */
#define ENABLE_JIT_MAP 1
void mono_enable_jit_map (void);
void mono_emit_jit_map (MonoJitInfo *jinfo);
void mono_emit_jit_tramp (void *start, int size, const char *desc);
gboolean mono_jit_map_is_enabled (void);
#else
#define mono_enable_jit_map()
#define mono_emit_jit_map(ji)
#define mono_emit_jit_tramp(s,z,d)
#define mono_jit_map_is_enabled() (0)
#endif
/*
* Per-OS implementation functions.
*/
void
mono_runtime_install_handlers (void);
gboolean
mono_runtime_install_custom_handlers (const char *handlers);
void
mono_runtime_install_custom_handlers_usage (void);
void
mono_runtime_cleanup_handlers (void);
void
mono_runtime_setup_stat_profiler (void);
void
mono_runtime_shutdown_stat_profiler (void);
void
mono_runtime_posix_install_handlers (void);
void
mono_gdb_render_native_backtraces (pid_t crashed_pid);
void
mono_cross_helpers_run (void);
void
mono_init_native_crash_info (void);
void
mono_cleanup_native_crash_info (void);
void
mono_dump_native_crash_info (const char *signal, MonoContext *mctx, MONO_SIG_HANDLER_INFO_TYPE *info);
void
mono_post_native_crash_handler (const char *signal, MonoContext *mctx, MONO_SIG_HANDLER_INFO_TYPE *info, gboolean crash_chaining);
gboolean
mono_is_addr_implicit_null_check (void *addr);
/*
* Signal handling
*/
#if defined(DISABLE_HW_TRAPS) || defined(MONO_ARCH_DISABLE_HW_TRAPS)
// Signal handlers not available
#define MONO_ARCH_NEED_DIV_CHECK 1
#endif
void MONO_SIG_HANDLER_SIGNATURE (mono_sigfpe_signal_handler) ;
void MONO_SIG_HANDLER_SIGNATURE (mono_crashing_signal_handler) ;
void MONO_SIG_HANDLER_SIGNATURE (mono_sigsegv_signal_handler);
void MONO_SIG_HANDLER_SIGNATURE (mono_sigint_signal_handler) ;
gboolean MONO_SIG_HANDLER_SIGNATURE (mono_chain_signal);
#if defined (HOST_WASM)
#define MONO_RETURN_ADDRESS_N(N) NULL
#define MONO_RETURN_ADDRESS() MONO_RETURN_ADDRESS_N(0)
#elif defined (__GNUC__)
#define MONO_RETURN_ADDRESS_N(N) (__builtin_extract_return_addr (__builtin_return_address (N)))
#define MONO_RETURN_ADDRESS() MONO_RETURN_ADDRESS_N(0)
#elif defined(_MSC_VER)
#include <intrin.h>
#pragma intrinsic(_ReturnAddress)
#define MONO_RETURN_ADDRESS() _ReturnAddress()
#define MONO_RETURN_ADDRESS_N(N) NULL
#else
#error "Missing return address intrinsics implementation"
#endif
//have a global view of sdb disable
#if !defined(MONO_ARCH_SOFT_DEBUG_SUPPORTED) || defined (DISABLE_DEBUGGER_AGENT)
#define DISABLE_SDB 1
#endif
void mini_register_sigterm_handler (void);
#define MINI_BEGIN_CODEGEN() do { \
mono_codeman_enable_write (); \
} while (0)
#define MINI_END_CODEGEN(buf,size,type,arg) do { \
mono_codeman_disable_write (); \
mono_arch_flush_icache ((buf), (size)); \
if ((int)type != -1) \
MONO_PROFILER_RAISE (jit_code_buffer, ((buf), (size), (type), (arg))); \
} while (0)
#endif /* __MONO_MINI_RUNTIME_H__ */
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