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fix: patch relocations byte-wise

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there is no restriction for alignment of relocation offset

Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>
This commit is contained in:
Mateusz Jablonski
2025-05-12 12:22:23 +00:00
committed by Compute-Runtime-Automation
parent 4ab91eab1e
commit 6e20cbc05f
2 changed files with 104 additions and 10 deletions
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23
shared/source/compiler_interface/linker.cpp
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@@ -402,17 +402,20 @@ void Linker::patchAddress(void *relocAddress, const uint64_t value, const Linker
switch (relocation.type) {
default:
UNRECOVERABLE_IF(RelocationInfo::Type::address != relocation.type);
*reinterpret_cast<uint64_t *>(relocAddress) = value;
break;
case RelocationInfo::Type::addressLow:
*reinterpret_cast<uint32_t *>(relocAddress) = static_cast<uint32_t>(value & 0xffffffff);
break;
case RelocationInfo::Type::addressHigh:
*reinterpret_cast<uint32_t *>(relocAddress) = static_cast<uint32_t>((value >> 32) & 0xffffffff);
break;
case RelocationInfo::Type::address16:
*reinterpret_cast<uint16_t *>(relocAddress) = static_cast<uint16_t>(value);
memcpy_s(relocAddress, sizeof(uint64_t), &value, sizeof(uint64_t));
break;
case RelocationInfo::Type::addressLow: {
uint32_t valueToPatch = static_cast<uint32_t>(value & 0xffffffff);
memcpy_s(relocAddress, sizeof(uint32_t), &valueToPatch, sizeof(uint32_t));
} break;
case RelocationInfo::Type::addressHigh: {
uint32_t valueToPatch = static_cast<uint32_t>((value >> 32) & 0xffffffff);
memcpy_s(relocAddress, sizeof(uint32_t), &valueToPatch, sizeof(uint32_t));
} break;
case RelocationInfo::Type::address16: {
uint16_t valueToPatch = static_cast<uint16_t>(value & 0xffff);
memcpy_s(relocAddress, sizeof(uint16_t), &valueToPatch, sizeof(uint16_t));
} break;
}
}