8e79f2ee9c
Based on Nekogram. Key additions: - Rebrand to FoxiGram (app name, APK name, applicationId com.foxigram.app) - Embedded Xray (VLESS+Reality) proxy client via JNI libxray.so - Bundled hidden one-tap proxies (LTE + WiFi), read-only in UI - Auto-restore proxy on restart, rebind to active network (LTE/WiFi) - Server credentials externalized to git-ignored XrayServers.java (+ template) - libxray Go source included; compiled .so, keystore, google-services.json ignored
123 lines
6.1 KiB
Text
123 lines
6.1 KiB
Text
# Copyright 2017 The BoringSSL Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# This is a rough parser for x86-64 and aarch64 assembly designed to work with
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# https://github.com/pointlander/peg. delocate.go has a go:generate line for
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# rebuilding delocate.peg.go from this file.
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# To regenerate delocate.peg.go:
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#
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# go install github.com/pointlander/peg@latest
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# ~/go/bin/peg <path-to-this-file>
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#
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# this will generate delocate.peg.go next to delocate.peg.
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package main
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type Asm Peg {}
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AsmFile <- Statement* !.
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Statement <- WS? (Label / ((GlobalDirective /
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LocationDirective /
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SymbolDefiningDirective /
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LabelContainingDirective /
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Instruction /
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Directive /
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Comment / ) WS? ((Comment? '\n') / ';')))
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GlobalDirective <- (".global" / ".globl") WS SymbolName
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Directive <- '.' DirectiveName (WS Args)?
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DirectiveName <- [[A-Z0-9_]]+
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LocationDirective <- FileDirective / LocDirective
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FileDirective <- ".file" WS [^#\n]+
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LocDirective <- ".loc" WS [^#/\n]+
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Args <- Arg ((WS? ',' WS?) Arg)*
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Arg <- QuotedArg / [[0-9a-z%+\-*_@.$]]*
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QuotedArg <- '"' QuotedText '"'
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QuotedText <- (EscapedChar / [^"])*
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SymbolDefiningDirective <- SymbolDefiningDirectiveName WS (LocalSymbol / SymbolName) WS? ',' WS? SymbolArg
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SymbolDefiningDirectiveName <- ".equiv" / ".equ" / ".set"
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LabelContainingDirective <- LabelContainingDirectiveName WS SymbolArgs
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LabelContainingDirectiveName <- ".xword" / ".word" / ".hword" / ".long" / ".byte" / ".8byte" / ".4byte" / ".quad" / ".tc" / ".localentry" / ".size" / ".type" / ".uleb128" / ".sleb128"
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SymbolArgs <- SymbolArg ((WS? ',' WS?) SymbolArg)*
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SymbolArg <- SymbolExpr
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SymbolExpr <- SymbolAtom (WS? SymbolOperator WS? SymbolExpr)?
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SymbolAtom <- LocalLabelRef / Offset / SymbolType / LocalSymbol TCMarker? / SymbolName Offset / SymbolName TCMarker? / Dot / OpenParen WS? SymbolExpr WS? CloseParen
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SymbolOperator <- '+' / '-' / '|' / '<<' / '>>'
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OpenParen <- '('
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CloseParen <- ')'
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SymbolType <- [@%] ('function' / 'object')
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Dot <- '.'
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TCMarker <- '[TC]'
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EscapedChar <- '\\' .
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WS <- [ \t]+
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Comment <- ("//" / '#') [^\n]*
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Label <- (LocalSymbol / LocalLabel / SymbolName) ':'
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SymbolName <- [[A-Z._]][[A-Z.0-9$_]]*
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LocalSymbol <- '.L' [[A-Za-z.0-9$_]]+
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LocalLabel <- [0-9][0-9$]*
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LocalLabelRef <- [0-9][0-9$]*[bf]
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InstructionPrefix <- "notrack"
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Instruction <- (InstructionPrefix WS)? InstructionName (WS InstructionArg ((WS? ',' WS?) InstructionArg)*)?
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InstructionName <- [[A-Z]][[A-Z.0-9]]* [.+\-]?
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InstructionArg <- IndirectionIndicator? (ARMConstantTweak / RegisterOrConstant / LocalLabelRef / TOCRefHigh / TOCRefLow / GOTLocation / GOTAddress / GOTSymbolOffset / MemoryRef) AVX512Token*
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GOTLocation <- '$_GLOBAL_OFFSET_TABLE_-' LocalSymbol
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GOTAddress <- '_GLOBAL_OFFSET_TABLE_(%rip)'
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GOTSymbolOffset <- ('$' SymbolName '@GOT' 'OFF'?) / (":got:" SymbolName)
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AVX512Token <- WS? '{' '%'? [0-9a-z]* '}'
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TOCRefHigh <- '.TOC.-' ('0b' / ('.L' [a-zA-Z_0-9]+)) "@ha"
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TOCRefLow <- '.TOC.-' ('0b' / ('.L' [a-zA-Z_0-9]+)) "@l"
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IndirectionIndicator <- '*'
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Float <- [0-9]+ '.' [0-9]*
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RegisterOrConstant <- (('%'[[A-Z]][[A-Z0-9]]*) /
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('$'? ((Offset Offset) / Offset)) /
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('#' Float ) /
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('#' Offset ('*' [0-9]+ ('-' [0-9] [0-9]*)?)? ) /
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('#' '~'? '(' [0-9] WS? "<<" WS? [0-9] ')' ) /
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ARMRegister)
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![fb:(+\-]
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ARMConstantTweak <- ((([us] "xt" [xwhb]) / "lsl" / "lsr" / "ror" / "asr" / "msl") (WS '#' Offset)?) /
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"mul vl" / # multiply offset by the hardware's vector length
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"mul #" [0-9]
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ARMRegister <- "sp" /
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([xwdqshb] [0-9] [0-9]?) /
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"xzr" / "wzr" / "NZCV" / SVE2PredicateRegister / ARMVectorRegister / SVE2SpecialValue /
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('{' WS? ARMVectorRegister (',' WS? ARMVectorRegister)* WS? '}' ('[' [0-9] [0-9]? ']')? )
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ARMVectorRegister <- [pvz] [0-9] [0-9]? ![[0-9a-z_]] ('.' [0-9]* [bsdhq] ('[' [0-9] [0-9]? ']')? )?
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SVE2PredicateRegister <- "p" [0-9] [0-9]? "/" [[mz]]
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# https://developer.arm.com/documentation/ddi0596/2020-12/SVE-Instructions/INCD--INCH--INCW--vector---Increment-vector-by-multiple-of-predicate-constraint-element-count-
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SVE2SpecialValue <- ("pow2" / ("vl" [12345678] ![0-9] ) / "vl16" / "vl32" / "vl64" / "vl128" / "vl256" / "mul3" / "mul4" / "all") ![[0-9a-z_]]
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# Compilers only output a very limited number of expression forms. Rather than
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# implement a full expression parser, this enumerate those forms plus a few
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# that appear in our hand-written assembly.
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MemoryRef <- (SymbolRef BaseIndexScale /
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SymbolRef /
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Low12BitsSymbolRef /
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Offset* BaseIndexScale /
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SegmentRegister Offset BaseIndexScale /
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SegmentRegister BaseIndexScale /
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SegmentRegister Offset /
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ARMBaseIndexScale /
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BaseIndexScale)
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SymbolRef <- (Offset* '+')? (LocalSymbol / SymbolName) Offset* ('@' Section Offset*)?
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Low12BitsSymbolRef <- ":lo12:" (LocalSymbol / SymbolName) Offset?
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ARMBaseIndexScale <- '[' ARMRegister (',' WS? (('#' Offset (('*' [0-9]+) / ('*' '(' [0-9]+ Operator [0-9]+ ')') / (('+' [0-9]+)*))? ) / ARMGOTLow12 / Low12BitsSymbolRef / ARMRegister) (',' WS? ARMConstantTweak)?)? ']' ARMPostincrement?
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ARMGOTLow12 <- ":got_lo12:" SymbolName
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ARMPostincrement <- '!'
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BaseIndexScale <- '(' RegisterOrConstant? WS? (',' WS? RegisterOrConstant WS? (',' [0-9]+)? )? ')'
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Operator <- [+\-]
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Offset <- '+'? '-'? (("0b" [01]+) / ("0x" [[0-9A-F]]+) / [0-9]+)
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Section <- [[A-Z@]]+
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SegmentRegister <- '%' [c-gs] 's:'
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