decompiler
1.0.0
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A kind of MemoryBank which retrieves its data from an underlying LoadImage. More...
#include <memstate.hh>
Public Member Functions | |
MemoryImage (AddrSpace *spc, int4 ws, int4 ps, LoadImage *ld) | |
Constructor for a loadimage memorybank. More... | |
Public Member Functions inherited from ghidra::MemoryBank | |
MemoryBank (AddrSpace *spc, int4 ws, int4 ps) | |
Generic constructor for a memory bank. More... | |
int4 | getWordSize (void) const |
Get the number of bytes in a word for this memory bank. More... | |
int4 | getPageSize (void) const |
Get the number of bytes in a page for this memory bank. More... | |
AddrSpace * | getSpace (void) const |
Get the address space associated with this memory bank. More... | |
void | setValue (uintb offset, int4 size, uintb val) |
Set the value of a (small) range of bytes. More... | |
uintb | getValue (uintb offset, int4 size) const |
Retrieve the value encoded in a (small) range of bytes. More... | |
void | setChunk (uintb offset, int4 size, const uint1 *val) |
Set values of an arbitrary sequence of bytes. More... | |
void | getChunk (uintb offset, int4 size, uint1 *res) const |
Retrieve an arbitrary sequence of bytes. More... | |
Protected Member Functions | |
virtual void | insert (uintb addr, uintb val) |
Exception is thrown for write attempts. | |
virtual uintb | find (uintb addr) const |
Overridden find method. More... | |
virtual void | getPage (uintb addr, uint1 *res, int4 skip, int4 size) const |
Overridded getPage method. More... | |
Protected Member Functions inherited from ghidra::MemoryBank | |
virtual void | setPage (uintb addr, const uint1 *val, int4 skip, int4 size) |
Write data into a memory page. More... | |
Private Attributes | |
LoadImage * | loader |
The underlying LoadImage. | |
Additional Inherited Members | |
Static Public Member Functions inherited from ghidra::MemoryBank | |
static uintb | constructValue (const uint1 *ptr, int4 size, bool bigendian) |
Decode bytes to value. More... | |
static void | deconstructValue (uint1 *ptr, uintb val, int4 size, bool bigendian) |
Encode value to bytes. More... | |
A kind of MemoryBank which retrieves its data from an underlying LoadImage.
Any bytes requested on the bank which lie in the LoadImage are retrieved from the LoadImage. Other addresses in the space are filled in with zero. This bank cannot be written to.
Constructor for a loadimage memorybank.
A MemoryImage needs everything a basic memory bank needs and is needs to know the underlying LoadImage object to forward read reqests to.
spc | is the address space associated with the memory bank |
ws | is the number of bytes in the preferred wordsize (must be power of 2) |
ps | is the number of bytes in a page (must be power of 2) |
ld | is the underlying LoadImage |
References loader.
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protectedvirtual |
Overridden find method.
Find an aligned word from the bank. First an attempt is made to fetch the data from the LoadImage. If this fails, the value is returned as 0.
addr | is the address of the word to fetch |
Implements ghidra::MemoryBank.
References ghidra::MemoryBank::getSpace(), ghidra::MemoryBank::getWordSize(), and ghidra::AddrSpace::isBigEndian().
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protectedvirtual |
Overridded getPage method.
Retrieve an aligned page from the bank. First an attempt is made to retrieve the page from the LoadImage, which may do its own zero filling. If the attempt fails, the page is entirely filled in with zeros.
Reimplemented from ghidra::MemoryBank.
References ghidra::MemoryBank::getSpace().