php-src/Zend
Nikita Popov 193f28c7d5 Fixed bug #78010
Prevent the gc_info from becoming all zero for a registered root
by setting the top bit to one for compressed root addresses.
2019-07-15 12:00:30 +02:00
..
tests Fixed bug #78010 2019-07-15 12:00:30 +02:00
acinclude.m4 Trim trailing whitespace in source code files 2018-10-13 14:14:50 +02:00
bench.php Trim trailing whitespace in source code files 2018-10-13 14:16:33 +02:00
build.mk Trim trailing whitespace in source code files 2018-10-13 14:16:33 +02:00
buildconf Sync leading and final newlines in source code files 2018-10-14 12:55:24 +02:00
configure.ac Upgrade deprecated AC_OUTPUT macro calls 2018-07-29 16:04:39 +02:00
header Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
LICENSE Trim trailing whitespace in source code files 2018-10-13 14:16:33 +02:00
Makefile.am Sync leading and final newlines in source code files 2018-10-14 12:55:24 +02:00
Makefile.frag
micro_bench.php Trim trailing whitespace in source code files 2018-10-13 14:16:33 +02:00
README.ZEND_MM
README.ZEND_VM Sync leading and final newlines in source code files 2018-10-14 12:54:08 +02:00
zend_alloc_sizes.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_alloc.c Merge branch 'PHP-7.2' into PHP-7.3 2019-02-18 14:04:15 +01:00
zend_alloc.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_API.c Merge branch 'PHP-7.2' into PHP-7.3 2019-05-29 08:30:41 +02:00
zend_API.h Merge branch 'PHP-7.2' into PHP-7.3 2019-01-24 13:40:36 +01:00
zend_arena.h Fix bug #77955 2019-05-23 13:40:52 +02:00
zend_ast.c Merge branch 'PHP-7.2' into PHP-7.3 2019-06-28 16:09:09 +02:00
zend_ast.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_bitset.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_build.h year++ 2018-01-02 12:57:58 +08:00
zend_builtin_functions.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_builtin_functions.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_closures.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_closures.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_compile.c Merge branch 'PHP-7.2' into PHP-7.3 2019-03-14 16:46:46 +08:00
zend_compile.h Merge branch 'PHP-7.2' into PHP-7.3 2019-01-24 10:57:45 +01:00
zend_config.nw.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_config.w32.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_constants.c Merge branch 'PHP-7.2' into PHP-7.3 2019-02-12 11:43:34 +01:00
zend_constants.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_cpuinfo.c Possible fix for bug #77357 2019-01-03 10:24:48 +01:00
zend_cpuinfo.h Fixed bug #77447 2019-01-14 11:44:48 +01:00
zend_default_classes.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_dtrace.c Sync leading and final newlines in source code files 2018-10-14 12:51:01 +02:00
zend_dtrace.d Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_dtrace.h Remove old SVN keywords substitutions 2018-06-16 13:04:30 +02:00
zend_errors.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_exceptions.c Merge branch 'PHP-7.2' into PHP-7.3 2019-02-25 13:01:18 +01:00
zend_exceptions.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_execute_API.c Merge branch 'PHP-7.2' into PHP-7.3 2019-07-09 11:05:18 +02:00
zend_execute.c Respect EG(vm_stack_page_size) 2018-12-26 13:09:32 +03:00
zend_execute.h Respect EG(vm_stack_page_size) 2018-12-26 13:09:32 +03:00
zend_extensions.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_extensions.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_float.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_float.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_gc.c Fixed bug #78010 2019-07-15 12:00:30 +02:00
zend_gc.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_generators.c Check for NULL GC type in objects_store_del 2019-03-01 14:32:11 +01:00
zend_generators.h Trim trailing whitespace in source code files 2018-10-13 14:14:50 +02:00
zend_globals_macros.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_globals.h Merge branch 'PHP-7.2' into PHP-7.3 2019-03-18 10:04:29 +01:00
zend_hash.c Fix HT flags copying wrt iterator count 2019-04-16 12:14:45 +02:00
zend_hash.h Fix HT flags copying wrt iterator count 2019-04-16 12:14:45 +02:00
zend_highlight.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_highlight.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_inheritance.c Merge branch 'PHP-7.2' into PHP-7.3 2019-05-08 11:37:49 +02:00
zend_inheritance.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_ini_parser.y Merge branch 'PHP-7.2' into PHP-7.3 2019-04-08 11:12:52 +02:00
zend_ini_scanner_defs.h regenerate with re2c 1.0.3 2019-02-11 15:42:55 +08:00
zend_ini_scanner.c regenerate with re2c 1.0.3 2019-02-11 15:42:55 +08:00
zend_ini_scanner.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_ini_scanner.l Merge branch 'PHP-7.2' into PHP-7.3 2019-02-11 15:33:59 +08:00
zend_ini.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_ini.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_interfaces.c Removed useless IS_UNDEF checks 2018-07-31 12:23:46 +03:00
zend_interfaces.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_istdiostream.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_iterators.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_iterators.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_language_parser.y Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_language_scanner_defs.h Fix #77993: Wrong parse error for invalid hex literal on Windows 2019-05-13 11:04:56 +02:00
zend_language_scanner.c Merge branch 'PHP-7.2' into PHP-7.3 2019-05-13 11:06:14 +02:00
zend_language_scanner.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_language_scanner.l Merge branch 'PHP-7.2' into PHP-7.3 2019-05-13 11:06:14 +02:00
zend_list.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_list.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_llist.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_llist.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_long.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_modules.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_multibyte.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_multibyte.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_multiply.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_object_handlers.c Fixed bug #77498 2019-01-25 11:01:06 +01:00
zend_object_handlers.h Fixed bug #77498 2019-01-25 11:01:06 +01:00
zend_objects_API.c Merge branch 'PHP-7.2' into PHP-7.3 2019-03-18 10:04:29 +01:00
zend_objects_API.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_objects.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_objects.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_opcode.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_operators.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_operators.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_portability.h Remove x86 bit test optimization 2019-03-18 10:12:15 +01:00
zend_ptr_stack.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_ptr_stack.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_range_check.h year++ 2018-01-02 12:57:58 +08:00
zend_signal.c Merge branch 'PHP-7.2' into PHP-7.3 2018-11-20 21:30:53 +01:00
zend_signal.h Merge branch 'PHP-7.2' into PHP-7.3 2018-11-20 21:30:53 +01:00
zend_smart_str_public.h year++ 2018-01-02 12:57:58 +08:00
zend_smart_str.c Fixed bug #77329 (Buffer Overflow via overly long Error Messages) 2019-02-01 11:11:15 +03:00
zend_smart_str.h Sync leading and final newlines in source code files 2018-10-14 12:51:01 +02:00
zend_smart_string_public.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_smart_string.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_sort.c Trim trailing whitespace in source code files 2018-10-13 14:14:50 +02:00
zend_sort.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_sprintf.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_stack.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_stack.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_stream.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_stream.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_string.c Check assert only when RC_DEBUG is enabled 2019-04-18 14:26:15 +03:00
zend_string.h Fix compilation on x32 2018-11-13 12:31:00 +01:00
zend_strtod_int.h Sync leading and final newlines in source code files 2018-10-14 12:51:01 +02:00
zend_strtod.c Merge branch 'PHP-7.0' into PHP-7.1 2017-07-21 11:16:15 +02:00
zend_strtod.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_ts_hash.c Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_ts_hash.h Remove unused Git attributes ident 2018-07-25 00:53:25 +02:00
zend_type_info.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_types.h Fixed bug #77165 2018-11-15 17:16:39 +01:00
zend_variables.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_variables.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_virtual_cwd.c Fixed bug #77484 Zend engine crashes when calling realpath in invalid working dir 2019-01-19 02:36:51 +01:00
zend_virtual_cwd.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_vm_def.h Fixed bug #77263 (Segfault when using 2 RecursiveFilterIterator) 2019-01-14 13:18:28 +03:00
zend_vm_execute.h Fixed bug #77263 (Segfault when using 2 RecursiveFilterIterator) 2019-01-14 13:18:28 +03:00
zend_vm_execute.skl Sync leading and final newlines in source code files 2018-10-14 12:55:24 +02:00
zend_vm_gen.php Merge branch 'PHP-7.2' into PHP-7.3 2019-04-09 01:11:02 +03:00
zend_vm_handlers.h Fixed bug #76752 (Crash in ZEND_COALESCE_SPEC_TMP_HANDLER - assertion in _get_zval_ptr_tmp failed). 2018-08-17 12:19:31 +08:00
zend_vm_opcodes.c Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_vm_opcodes.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_vm_trace_handlers.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_vm_trace_map.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend_vm.h Future-proof email addresses 2018-11-01 18:35:32 +02:00
zend.c Fixed bug #77387 (Recursion detection broken when printing GLOBALS) 2019-01-02 16:42:05 +08:00
zend.h Next is 7.3.8 2019-06-11 13:31:30 +02:00
zend.ico
Zend.m4 Fix #76825: Undefined symbols ___cpuid_count 2018-11-05 18:24:39 +01:00

ZEND_VM
=======

ZEND_VM architecture allows specializing opcode handlers according to op_type
fields and using different execution methods (call threading, switch threading
and direct threading). As a result ZE2 got more than 20% speedup on raw PHP
code execution (with specialized executor and direct threading execution
method). As in most PHP applications raw execution speed isn't the limiting
factor but system calls and database calls are, your mileage with this patch
will vary.

Most parts of the old zend_execute.c go into zend_vm_def.h. Here you can
find opcode handlers and helpers. The typical opcode handler template looks
like this:

ZEND_VM_HANDLER(<OPCODE-NUMBER>, <OPCODE>, <OP1_TYPES>, <OP2_TYPES>)
{
	<HANDLER'S CODE>
}

<OPCODE-NUMBER> is a opcode number (0, 1, ...)
<OPCODE> is an opcode name (ZEN_NOP, ZEND_ADD, :)
<OP1_TYPES> & <OP2_TYPES> are masks for allowed operand op_types. Specializer
will generate code only for defined combination of types. You can use any
combination of the following op_types UNUSED, CONST, VAR, TMP and  CV also
you can use ANY mask to disable specialization according operand's op_type.
<HANDLER'S CODE> is a handler's code itself. For most handlers it stills the
same as in old zend_execute.c, but now it uses macros to access opcode operands
and some internal executor data.

You can see the conformity of new macros to old code in the following list:

EXECUTE_DATA
	execute_data
ZEND_VM_DISPATCH_TO_HANDLER(<OP>)
	return <OP>_helper(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)
ZEND_VM_DISPATCH_TO_HELPER(<NAME>)
	return <NAME>(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)
ZEND_VM_DISPATCH_TO_HELPER_EX(<NAME>,<PARAM>,<VAL>)
	return <NAME>(<VAL>, ZEND_OPCODE_HANDLER_ARGS_PASSTHRU)
ZEND_VM_CONTINUE()
	return 0
ZEND_VM_NEXT_OPCODE()
	NEXT_OPCODE()
ZEND_VM_SET_OPCODE(<TARGET>
	SET_OPCODE(<TARGET>
ZEND_VM_INC_OPCODE()
	INC_OPCOD()
ZEND_VM_RETURN_FROM_EXECUTE_LOOP()
	RETURN_FROM_EXECUTE_LOOP()
ZEND_VM_C_LABEL(<LABEL>):
	<LABEL>:
ZEND_VM_C_GOTO(<LABEL>)
	goto <LABEL>
OP<X>_TYPE
	opline->op<X>.op_type
GET_OP<X>_ZVAL_PTR(<TYPE>)
	get_zval_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
GET_OP<X>_ZVAL_PTR_PTR(<TYPE>)
	get_zval_ptr_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
GET_OP<X>_OBJ_ZVAL_PTR(<TYPE>)
	get_obj_zval_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
GET_OP<X>_OBJ_ZVAL_PTR_PTR(<TYPE>)
	get_obj_zval_ptr_ptr(&opline->op<X>, EX(Ts), &free_op<X>, <TYPE>)
IS_OP<X>_TMP_FREE()
	IS_TMP_FREE(free_op<X>)
FREE_OP<X>()
	FREE_OP(free_op<X>)
FREE_OP<X>_IF_VAR()
	FREE_VAR(free_op<X>)
FREE_OP<X>_VAR_PTR()
	FREE_VAR_PTR(free_op<X>)


Executor's helpers can be defined without parameters or with one parameter.
This is done with the following constructs:

ZEND_VM_HELPER(<HELPER-NAME>, <OP1_TYPES>, <OP2_TYPES>)
{
	<HELPER'S CODE>
}

ZEND_VM_HELPER_EX(<HELPER-NAME>, <OP1_TYPES>, <OP2_TYPES>, <PARAM_SPEC>)
{
	<HELPER'S CODE>
}

Executor's code is generated by PHP script zend_vm_gen.php it uses zend_vm_def.h
and zend_vm_execute.skl as input and produces zend_vm_opcodes.h and
zend_vm_execute.h. The first file is a list of opcode definitions. It is
included from zend_compile.h. The second one is an executor code itself. It is
included from zend_execute.c.

zend_vm_gen.php can produce different kind of executors. You can select
different opcode threading model using --with-vm-kind=CALL|SWITCH|GOTO. You can
disable opcode specialization using --without-specializer. You can include or
exclude old executor together with specialized one using --without-old-executor.
At last you can debug executor using original zend_vm_def.h or generated file
zend_vm_execute.h. Debugging with original file requires --with-lines
option. By default ZE2 uses the following command to generate executor:

$ php zend_vm_gen.php --with-vm-kind=CALL