Edit File: zend_jit.h
/* +----------------------------------------------------------------------+ | Zend JIT | +----------------------------------------------------------------------+ | Copyright (c) The PHP Group | +----------------------------------------------------------------------+ | This source file is subject to version 3.01 of the PHP license, | | that is bundled with this package in the file LICENSE, and is | | available through the world-wide-web at the following url: | | https://www.php.net/license/3_01.txt | | If you did not receive a copy of the PHP license and are unable to | | obtain it through the world-wide-web, please send a note to | | license@php.net so we can mail you a copy immediately. | +----------------------------------------------------------------------+ | Authors: Dmitry Stogov <dmitry@php.net> | +----------------------------------------------------------------------+ */ #ifndef HAVE_JIT_H #define HAVE_JIT_H #if defined(__x86_64__) || defined(i386) || defined(ZEND_WIN32) # define ZEND_JIT_TARGET_X86 1 # define ZEND_JIT_TARGET_ARM64 0 #elif defined (__aarch64__) # define ZEND_JIT_TARGET_X86 0 # define ZEND_JIT_TARGET_ARM64 1 #else # error "JIT not supported on this platform" #endif #define ZEND_JIT_LEVEL_NONE 0 /* no JIT */ #define ZEND_JIT_LEVEL_MINIMAL 1 /* minimal JIT (subroutine threading) */ #define ZEND_JIT_LEVEL_INLINE 2 /* selective inline threading */ #define ZEND_JIT_LEVEL_OPT_FUNC 3 /* optimized JIT based on Type-Inference */ #define ZEND_JIT_LEVEL_OPT_FUNCS 4 /* optimized JIT based on Type-Inference and call-tree */ #define ZEND_JIT_LEVEL_OPT_SCRIPT 5 /* optimized JIT based on Type-Inference and inner-procedure analysis */ #define ZEND_JIT_ON_SCRIPT_LOAD 0 #define ZEND_JIT_ON_FIRST_EXEC 1 #define ZEND_JIT_ON_PROF_REQUEST 2 /* compile the most frequently caled on first request functions */ #define ZEND_JIT_ON_HOT_COUNTERS 3 /* compile functions after N calls or loop iterations */ #define ZEND_JIT_ON_DOC_COMMENT 4 /* compile functions with "@jit" tag in doc-comments */ #define ZEND_JIT_ON_HOT_TRACE 5 /* trace functions after N calls or loop iterations */ #define ZEND_JIT_REG_ALLOC_LOCAL (1<<0) /* local linear scan register allocation */ #define ZEND_JIT_REG_ALLOC_GLOBAL (1<<1) /* global linear scan register allocation */ #define ZEND_JIT_CPU_AVX (1<<2) /* use AVX instructions, if available */ #define ZEND_JIT_DEFAULT_BUFFER_SIZE "0" #define ZEND_JIT_COUNTER_INIT 32531 #define ZEND_JIT_DEBUG_ASM (1<<0) #define ZEND_JIT_DEBUG_SSA (1<<1) #define ZEND_JIT_DEBUG_REG_ALLOC (1<<2) #define ZEND_JIT_DEBUG_ASM_STUBS (1<<3) #define ZEND_JIT_DEBUG_PERF (1<<4) #define ZEND_JIT_DEBUG_PERF_DUMP (1<<5) #define ZEND_JIT_DEBUG_OPROFILE (1<<6) #define ZEND_JIT_DEBUG_VTUNE (1<<7) #define ZEND_JIT_DEBUG_GDB (1<<8) #define ZEND_JIT_DEBUG_SIZE (1<<9) #define ZEND_JIT_DEBUG_ASM_ADDR (1<<10) #define ZEND_JIT_DEBUG_TRACE_START (1<<12) #define ZEND_JIT_DEBUG_TRACE_STOP (1<<13) #define ZEND_JIT_DEBUG_TRACE_COMPILED (1<<14) #define ZEND_JIT_DEBUG_TRACE_EXIT (1<<15) #define ZEND_JIT_DEBUG_TRACE_ABORT (1<<16) #define ZEND_JIT_DEBUG_TRACE_BLACKLIST (1<<17) #define ZEND_JIT_DEBUG_TRACE_BYTECODE (1<<18) #define ZEND_JIT_DEBUG_TRACE_TSSA (1<<19) #define ZEND_JIT_DEBUG_TRACE_EXIT_INFO (1<<20) #define ZEND_JIT_DEBUG_PERSISTENT 0x1f0 /* profile and debugger flags can't be changed at run-time */ #define ZEND_JIT_TRACE_MAX_LENGTH 1024 /* max length of single trace */ #define ZEND_JIT_TRACE_MAX_EXITS 512 /* max number of side exits per trace */ #define ZEND_JIT_TRACE_MAX_FUNCS 30 /* max number of different functions in a single trace */ #define ZEND_JIT_TRACE_MAX_CALL_DEPTH 10 /* max depth of inlined calls */ #define ZEND_JIT_TRACE_MAX_RET_DEPTH 4 /* max depth of inlined returns */ #define ZEND_JIT_TRACE_MAX_LOOPS_UNROLL 10 /* max number of unrolled loops */ #define ZEND_JIT_TRACE_BAD_ROOT_SLOTS 64 /* number of slots in bad root trace cache */ typedef struct _zend_jit_trace_rec zend_jit_trace_rec; typedef struct _zend_jit_trace_stack_frame zend_jit_trace_stack_frame; typedef struct _sym_node zend_sym_node; typedef struct _zend_jit_globals { bool enabled; bool on; uint8_t trigger; uint8_t opt_level; uint32_t opt_flags; const char *options; zend_long buffer_size; zend_long debug; zend_long bisect_limit; double prof_threshold; zend_long max_root_traces; /* max number of root traces */ zend_long max_side_traces; /* max number of side traces (per root trace) */ zend_long max_exit_counters; /* max total number of side exits for all traces */ zend_long hot_loop; zend_long hot_func; zend_long hot_return; zend_long hot_side_exit; /* number of exits before taking side trace */ zend_long blacklist_root_trace; /* number of attempts to JIT a root trace before blacklist it */ zend_long blacklist_side_trace; /* number of attempts to JIT a side trace before blacklist it */ zend_long max_loop_unrolls; /* max number of unrolled loops */ zend_long max_recursive_calls; /* max number of recursive inlined call unrolls */ zend_long max_recursive_returns; /* max number of recursive inlined return unrolls */ zend_long max_polymorphic_calls; /* max number of inlined polymorphic calls */ zend_sym_node *symbols; /* symbols for disassembler */ bool tracing; zend_jit_trace_rec *current_trace; zend_jit_trace_stack_frame *current_frame; const zend_op *bad_root_cache_opline[ZEND_JIT_TRACE_BAD_ROOT_SLOTS]; uint8_t bad_root_cache_count[ZEND_JIT_TRACE_BAD_ROOT_SLOTS]; uint8_t bad_root_cache_stop[ZEND_JIT_TRACE_BAD_ROOT_SLOTS]; uint32_t bad_root_slot; uint8_t *exit_counters; } zend_jit_globals; #ifdef ZTS # define JIT_G(v) ZEND_TSRMG(jit_globals_id, zend_jit_globals *, v) extern int jit_globals_id; #else # define JIT_G(v) (jit_globals.v) extern zend_jit_globals jit_globals; #endif ZEND_EXT_API int zend_jit_op_array(zend_op_array *op_array, zend_script *script); ZEND_EXT_API int zend_jit_script(zend_script *script); ZEND_EXT_API void zend_jit_unprotect(void); ZEND_EXT_API void zend_jit_protect(void); ZEND_EXT_API void zend_jit_init(void); ZEND_EXT_API int zend_jit_config(zend_string *jit_options, int stage); ZEND_EXT_API int zend_jit_debug_config(zend_long old_val, zend_long new_val, int stage); ZEND_EXT_API int zend_jit_check_support(void); ZEND_EXT_API int zend_jit_startup(void *jit_buffer, size_t size, bool reattached); ZEND_EXT_API void zend_jit_shutdown(void); ZEND_EXT_API void zend_jit_activate(void); ZEND_EXT_API void zend_jit_deactivate(void); ZEND_EXT_API void zend_jit_status(zval *ret); ZEND_EXT_API void zend_jit_restart(void); typedef struct _zend_lifetime_interval zend_lifetime_interval; typedef struct _zend_life_range zend_life_range; struct _zend_life_range { uint32_t start; uint32_t end; zend_life_range *next; }; #define ZREG_FLAGS_SHIFT 8 #define ZREG_STORE (1<<0) #define ZREG_LOAD (1<<1) #define ZREG_LAST_USE (1<<2) #define ZREG_SPLIT (1<<3) struct _zend_lifetime_interval { int ssa_var; union { struct { ZEND_ENDIAN_LOHI_3( int8_t reg, uint8_t flags, uint16_t reserved )}; uint32_t reg_flags; }; zend_life_range range; zend_lifetime_interval *hint; zend_lifetime_interval *used_as_hint; zend_lifetime_interval *list_next; }; #endif /* HAVE_JIT_H */