Configure WhiteSource Bolt for GitHub #3
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1. For statement "$a->change($a = array("a" => range(1, 5)));", the
following opcodes will be generated:
0002 ASSIGN CV0($a) V1
0003 INIT_METHOD_CALL 1 CV0($a) string("change")
0004 INIT_NS_FCALL_BY_NAME 2 string("A\range")
0005 SEND_VAL_EX int(1) 1
0006 SEND_VAL_EX int(5) 2
0007 V1 = DO_FCALL_BY_NAME
The updates in function zend_jit_init_fcall(), zend_jit_send_val() and
zend_jit_do_fcall() are made to support INIT_NS_FCALL_BY_NAME,
SEND_VAL_EX and DO_FCALL_BY_NAME respectively.
2. For method $change(), opcode RECV is used to obtain the argument:
0000 #1.CV0($config) [rc1, rcn, array of [any, ref]] = RECV 1
Accordingly the updates in functions zend_jit_recv() and
zend_jit_verify_arg_type() are made.
3. For statement "array_keys($config["a"])", the following opcodes will
be generated:
0001 INIT_NS_FCALL_BY_NAME 1 string("A\array_keys")
0002 CHECK_FUNC_ARG 1
0003 #3.V1 [ref, rc1, rcn, any] = FETCH_DIM_FUNC_ARG #1.CV0($config)
... -> #2.CV0($config) [rc1, rcn, ...
0004 SEND_FUNC_ARG #3.V1 [ref, rc1, rcn, any] 1
0005 #4.V1 [ref, rc1, rcn, any] = DO_FCALL_BY_NAME
CHECK_FUNC_ARG and SEND_FUNC_ARG are not supported before. See the
updates in functions zend_jit_check_func_arg() and zend_jit_send_var().
Besides, a new path is covered in macro OBJ_RELEASE when leaving.
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The following opcodes would be generated for $foo: 0000 #2.CV0($test) [bool] RANGE[0..1] = RECV 1 0001 #3.CV1($x) [long] RANGE[MIN..MAX] = RECV 2 0002 JMPZ #2.CV0($test) [bool] RANGE[0..1] BB4 0003 #4.T2 [bool] ... = IS_SMALLER_OR_EQUAL int(1) #3.CV1($x) ... 0004 JMP BB5 ... The updates in function zend_jit_verify_arg_type() are made to support RECV opcode. The updates in function zend_jit_bool_jmpznz() are made to support JMPZ opcode. New path is covered in functions zend_jit_cmp() and zend_jit_cmp_long_long() for IS_SMALLER_OR_EQUAL opcode.
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The following opcodes would be generated:
...
BB1:
0003 JMP BB3
BB2:
0004 INIT_FCALL 1 96 string("chr")
0005 #10.T3 [long] = SR #3.CV0($int) [long] #7.CV2($i) ...
0006 #11.T4 [long] RANGE[0..127] = BW_AND #10.T3 [long] ...
0007 #12.T3 [long] RANGE[128..255] = BW_OR #11.T4 [long] ...
0008 SEND_VAL #12.T3 [long] RANGE[128..255] 1
0009 #13.V3 [ref, rc1, rcn, any] = DO_ICALL
0010 ASSIGN_OP (CONCAT) #6.CV1($out) [rc1, rcn, string]
0011 ADD #7.CV2($i)... int(7) #7.CV2($i) ... -> #15.CV2($i) ...
BB3:
0012 #8.T4 [long] = SR #3.CV0($int) #7.CV2($i) [long, double]
0013 #9.T3 [bool] RANGE[0..1] = IS_SMALLER int(128) #8.T4
0014 JMPNZ #9.T3 [bool] RANGE[0..1] BB2
...
Main changes are:
1. SR opcode covers new path in function zend_jit_long_math_helper().
2. BW_AND and BW_OR opcodes are supported. See macro LONG_OP.
3. Function zend_jit_concat_helper() is added to support ASSIGN_OP
opcode. Speficically, CONCAT and FAST_CONCAT is supported for statements
"$out .= ...".
4. New path is covered in function zend_jit_cmp_long_long() by
IS_SMALLER opcode.
5. New path is covered in macros ZVAL_PTR_DTOR and ZVAL_DTOR_FUNC when
leaving.
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Opcodes for $Test::method are:
BB0:
0000 #0.T0 [rcn, any] = FETCH_OBJ_R THIS string("prop")
0001 #1.T0 [bool] RANGE[0..1] = JMPZ_EX #0.T0 [rcn, any] BB3
BB1:
0002 #2.T1 [rcn, any] = FETCH_OBJ_R THIS string("prop")
0003 INIT_METHOD_CALL 0 #2.T1 [rcn, any] string("method2")
0004 #3.V1 [ref, rc1, rcn, any] = DO_FCALL
...
New path is covered in functions zend_jit_fetch_obj() and
zend_jit_zval_copy_deref() for FETCH_OBJ_R THIS opcode.
New path is covered in function zend_jit_init_method_call() for opcode
INIT_METHOD_CALL.
Major chagnes lie in function zend_jit_bool_jmpznz() to support opcode
JMPZ_EX.
Note that macro ZVAL_DTOR_FUNC is updated to remove the hard-coded use
of REG0.
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Opcodes for $test are: BB0: 0000 #1.CV0($char_code) [rc1, rcn, any] = RECV 1 BB1: 0001 #2.T1 [rc1, ...] = BW_AND #1.CV0($char_code) ... 0002 #3.T2 [bool] RANGE[0..1] = BOOL_NOT #2.T1 [rc1, ...] 0003 #4.T1 [bool] RANGE[0..1] = IS_EQUAL #1.CV0($char_code) ... 0004 JMPZ #4.T1 [bool] RANGE[0..1] BB3 ... New path is covered in function zend_jit_long_math_helper() for opcode BW_AND. New path is covered in function zend_jit_bool_jmpznz() for opcode BOOL_NOT. Major changes lie in functions zend_jit_cmp(), zend_jit_cmp_slow() and zend_jit_check_exception_undef_result() to support opocdes IS_EQUAL and JMPZ.
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Welcome to WhiteSource Bolt for GitHub! This is an onboarding PR to help you understand and configure settings before WhiteSource starts scanning your repository for security vulnerabilities.
🚦 WhiteSource Bolt for GitHub will start scanning your repository only once you merge this Pull Request. To disable WhiteSource Bolt for GitHub, simply close this Pull Request.
What to Expect
This PR contains a '.whitesource' configuration file which can be customized to your needs. If no changes were applied to this file, WhiteSource Bolt for GitHub will use the default configuration.
Before merging this PR, Make sure the Issues tab is enabled. Once you merge this PR, WhiteSource Bolt for GitHub will scan your repository and create a GitHub Issue for every vulnerability detected in your repository.
If you do not want a GitHub Issue to be created for each detected vulnerability, you can edit the '.whitesource' file and set the 'minSeverityLevel' parameter to 'NONE'.
❓ Got questions? Check out WhiteSource Bolt for GitHub docs.
If you need any further assistance then you can also request help here.