php-src/Zend
2010-01-11 10:07:10 +00:00
..
RFCs this one is declined 2004-01-09 18:55:49 +00:00
tests - New tests 2009-12-20 22:04:55 +00:00
acconfig.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
acinclude.m4 2.4.1 is safe 2009-02-14 21:08:02 +00:00
bench.php MFH: Fix date warning by setting the default timezone to UTC 2009-07-13 23:56:38 +00:00
build.mk
buildconf
ChangeLog ChangeLog update 2005-08-06 05:37:51 +00:00
configure.in - Rewrite scanner to be based on re2c instead of flex 2008-03-16 21:06:55 +00:00
header Year++ 2010-01-11 03:01:19 +00:00
LICENSE - More -> 2006 changes 2006-01-05 02:34:02 +00:00
Makefile.am Fixed floating point mathematic speed degradation (Christian) 2009-03-18 10:18:10 +00:00
Makefile.frag - Fix dependency 2005-01-25 10:39:49 +00:00
OBJECTS2_HOWTO - modifyable -> modifiable 2004-04-12 12:22:26 +00:00
README.ZEND_MM MFH 2007-07-19 13:57:16 +00:00
README.ZEND_VM Nuked DOS EOLs 2005-08-03 13:29:00 +00:00
zend_alloc.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_alloc.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_API.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_API.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_build.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_builtin_functions.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_builtin_functions.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
ZEND_CHANGES Add some information about array overloading 2004-08-30 18:48:52 +00:00
zend_closures.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_closures.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_compile.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_compile.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_config.nw.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_config.w32.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_constants.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_constants.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_default_classes.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_dynamic_array.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_dynamic_array.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_errors.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_exceptions.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_exceptions.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_execute_API.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_execute.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_execute.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_extensions.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_extensions.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_fast_cache.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_float.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_float.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_gc.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_gc.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_globals_macros.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_globals.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_hash.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_hash.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_highlight.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_highlight.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_indent.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_indent.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ini_parser.y sed -i "s#1998-2009#1998-2010#g" **/*.re **/*.y **/*.l 2010-01-05 20:40:23 +00:00
zend_ini_scanner_defs.h touch 2009-12-18 12:48:59 +00:00
zend_ini_scanner.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ini_scanner.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ini_scanner.l sed -i "s#1998-2009#1998-2010#g" **/*.re **/*.y **/*.l 2010-01-05 20:40:23 +00:00
zend_ini.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ini.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_interfaces.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_interfaces.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_istdiostream.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_iterators.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_iterators.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_language_parser.y sed -i "s#1998-2009#1998-2010#g" **/*.re **/*.y **/*.l 2010-01-05 20:40:23 +00:00
zend_language_scanner_defs.h - Fix skips 2009-09-10 15:05:34 +00:00
zend_language_scanner.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_language_scanner.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_language_scanner.l sed -i "s#1998-2009#1998-2010#g" **/*.re **/*.y **/*.l 2010-01-05 20:40:23 +00:00
zend_list.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_list.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_llist.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_llist.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_modules.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_multibyte.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_multibyte.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_multiply.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_object_handlers.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_object_handlers.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_objects_API.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_objects_API.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_objects.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_objects.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_opcode.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_operators.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_operators.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ptr_stack.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ptr_stack.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_qsort.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_qsort.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_sprintf.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_stack.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_stack.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_static_allocator.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_static_allocator.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_stream.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_stream.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_strtod.c Fixed floating point mathematic speed degradation (Christian) 2009-03-18 10:18:10 +00:00
zend_strtod.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ts_hash.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_ts_hash.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_types.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_variables.c Fixed bug #50519 (segfault in garbage collection when using set_error_handler and DomDocument) 2010-01-11 10:07:10 +00:00
zend_variables.h Fixed bug #50519 (segfault in garbage collection when using set_error_handler and DomDocument) 2010-01-11 10:07:10 +00:00
zend_vm_def.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_vm_execute.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_vm_execute.skl Fixed bug #46074 (Bus error during running PHP CLI under IRIX 6.5.30) 2009-09-03 14:33:11 +00:00
zend_vm_gen.php sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_vm_opcodes.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend_vm.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend.c sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
Zend.dsp Fixed floating point mathematic speed degradation (Christian) 2009-03-18 10:18:10 +00:00
zend.h sed -i "s#1998-2009#1998-2010#g" **/*.c **/*.h **/*.php 2010-01-05 20:46:53 +00:00
zend.ico
Zend.m4 Fix bug #48575 - Use dlopen() just like all the other *nixes instead of OSX specific code. 2009-08-06 01:33:54 +00:00
ZendCore.dep
ZendTS.dsp Added support for lambda functions and closures 2008-07-14 09:49:03 +00:00

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 callls 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

Zend Engine II currently includes two executors during the build process, one
is the specialized version and the other is the old one non-specialized with
function handlers. By default Zend Engine II uses the specialized one but you
can switch to the old executor at runtime by calling zend_vm_use_old_executor().