LLVM
8.0.1
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RuntimeDyld invariant checker for verifying that RuntimeDyld has correctly applied relocations. More...
#include "llvm/ExecutionEngine/RuntimeDyldChecker.h"
Public Member Functions | |
RuntimeDyldChecker (RuntimeDyld &RTDyld, MCDisassembler *Disassembler, MCInstPrinter *InstPrinter, raw_ostream &ErrStream) | |
~RuntimeDyldChecker () | |
RuntimeDyld & | getRTDyld () |
const RuntimeDyld & | getRTDyld () const |
bool | check (StringRef CheckExpr) const |
Check a single expression against the attached RuntimeDyld instance. More... | |
bool | checkAllRulesInBuffer (StringRef RulePrefix, MemoryBuffer *MemBuf) const |
Scan the given memory buffer for lines beginning with the string in RulePrefix. More... | |
std::pair< uint64_t, std::string > | getSectionAddr (StringRef FileName, StringRef SectionName, bool LocalAddress) |
Returns the address of the requested section (or an error message in the second element of the pair if the address cannot be found). More... | |
Optional< uint64_t > | getSectionLoadAddress (void *LocalAddress) const |
If there is a section at the given local address, return its load address, otherwise return none. More... | |
RuntimeDyld invariant checker for verifying that RuntimeDyld has correctly applied relocations.
The RuntimeDyldChecker class evaluates expressions against an attached RuntimeDyld instance to verify that relocations have been applied correctly.
The expression language supports basic pointer arithmetic and bit-masking, and has limited disassembler integration for accessing instruction operands and the next PC (program counter) address for each instruction.
The language syntax is:
check = expr '=' expr
expr = binary_expr | sliceable_expr
sliceable_expr = '*{' number '}' load_addr_expr [slice] | '(' expr ')' [slice] | ident_expr [slice] | number [slice]
slice = '[' high-bit-index ':' low-bit-index ']'
load_addr_expr = symbol | '(' symbol '+' number ')' | '(' symbol '-' number ')'
ident_expr = 'decode_operand' '(' symbol ',' operand-index ')' | 'next_pc' '(' symbol ')' | 'stub_addr' '(' file-name ',' section-name ',' symbol ')' | symbol
binary_expr = expr '+' expr | expr '-' expr | expr '&' expr | expr '|' expr | expr '<<' expr | expr '>>' expr
Definition at line 71 of file RuntimeDyldChecker.h.
RuntimeDyldChecker::RuntimeDyldChecker | ( | RuntimeDyld & | RTDyld, |
MCDisassembler * | Disassembler, | ||
MCInstPrinter * | InstPrinter, | ||
raw_ostream & | ErrStream | ||
) |
Definition at line 954 of file RuntimeDyldChecker.cpp.
RuntimeDyldChecker::~RuntimeDyldChecker | ( | ) |
Definition at line 961 of file RuntimeDyldChecker.cpp.
Check a single expression against the attached RuntimeDyld instance.
Definition at line 971 of file RuntimeDyldChecker.cpp.
bool RuntimeDyldChecker::checkAllRulesInBuffer | ( | StringRef | RulePrefix, |
MemoryBuffer * | MemBuf | ||
) | const |
Scan the given memory buffer for lines beginning with the string in RulePrefix.
The remainder of the line is passed to the check method to be evaluated as an expression.
Definition at line 975 of file RuntimeDyldChecker.cpp.
RuntimeDyld & RuntimeDyldChecker::getRTDyld | ( | ) |
Definition at line 963 of file RuntimeDyldChecker.cpp.
const RuntimeDyld & RuntimeDyldChecker::getRTDyld | ( | ) | const |
Definition at line 967 of file RuntimeDyldChecker.cpp.
std::pair< uint64_t, std::string > RuntimeDyldChecker::getSectionAddr | ( | StringRef | FileName, |
StringRef | SectionName, | ||
bool | LocalAddress | ||
) |
Returns the address of the requested section (or an error message in the second element of the pair if the address cannot be found).
if 'LocalAddress' is true, this returns the address of the section within the linker's memory. If 'LocalAddress' is false it returns the address within the target process (i.e. the load address).
Definition at line 981 of file RuntimeDyldChecker.cpp.
Optional< uint64_t > RuntimeDyldChecker::getSectionLoadAddress | ( | void * | LocalAddress | ) | const |
If there is a section at the given local address, return its load address, otherwise return none.
Definition at line 987 of file RuntimeDyldChecker.cpp.