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Fixed bug (in EDBG driver) with writeMemory() forwarding an invalid memory type to readMemory() (EEPROM_ATOMIC can only be used for writing to memory, not reading)

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2022-12-11 23:36:21 +00:00
parent 131f1aa249
commit f0225dba88
1 changed files with 9 additions and 1 deletions
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10
src/DebugToolDrivers/Protocols/CMSIS-DAP/VendorSpecific/EDBG/AVR/EdbgAvr8Interface.cpp
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@@ -1809,7 +1809,15 @@ namespace Bloom::DebugToolDrivers::Protocols::CmsisDap::Edbg::Avr
const auto alignedBytes = this->alignMemoryBytes(type, bytes + (startAddress - alignedStartAddress));
if (alignedStartAddress != startAddress || alignedBytes != bytes) {
auto alignedBuffer = this->readMemory(type, alignedStartAddress, alignedBytes);
/*
* We can't just forward the memory type to readMemory(), because some memory types (such as
* EEPROM_ATOMIC) can only be used for writing.
*
* This nasty hack will have to do for now.
*/
const auto readMemoryType = type == Avr8MemoryType::EEPROM_ATOMIC ? Avr8MemoryType::EEPROM : type;
auto alignedBuffer = this->readMemory(readMemoryType, alignedStartAddress, alignedBytes);
assert(alignedBuffer.size() >= buffer.size());
const auto offset = alignedBuffer.begin() + (startAddress - alignedStartAddress);