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LDR: CROHelper misc fucntion

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This commit is contained in:
wwylele 2016-07-15 10:05:45 +03:00
parent c94d071534
commit f7a12daa4c
1 changed files with 38 additions and 0 deletions
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38
src/core/hle/service/ldr_ro.cpp
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@ -1679,6 +1679,17 @@ public:
UnrebaseHeader();
}
/**
* Verifies module hash by CRR.
* @param cro_size the size of the CRO
* @param crr the virtual address of the CRR
* @returns ResultCode RESULT_SUCCESS on success, otherwise error code.
*/
ResultCode VerifyHash(u32 cro_size, VAddr crr) const {
// TODO(wwylele): actually verify the hash
return RESULT_SUCCESS;
}
/**
* Links this module with all registered auto-link module.
* @param crs_address the virtual address of the static module
@ -1971,6 +1982,33 @@ public:
return GetField(FixedSize);
}
bool IsLoaded() const {
u32 magic = GetField(Magic);
if (magic != MAGIC_CRO0 && magic != MAGIC_FIXD)
return false;
// TODO(wwylele): verify memory state here after memory aliasing is implemented
return true;
}
/**
* Gets the page address and size of the code segment.
* @returns a tuple of (address, size); (0, 0) if the code segment doesn't exist.
*/
std::tuple<VAddr, u32> GetExecutablePages() const {
u32 segment_num = GetField(SegmentNum);
for (u32 i = 0; i < segment_num; ++i) {
SegmentEntry entry;
GetEntry(i, entry);
if (entry.type == SegmentType::Code && entry.size != 0) {
VAddr begin = Common::AlignDown(entry.offset, Memory::PAGE_SIZE);
VAddr end = Common::AlignUp(entry.offset + entry.size, Memory::PAGE_SIZE);
return std::make_tuple(begin, end - begin);
}
}
return std::make_tuple(0, 0);
}
};
std::array<int, 17> CROHelper::ENTRY_SIZE {{