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Fix possible overflow in static_assert (#67)

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tevador 2019-06-14 23:16:27 +02:00 committed by GitHub
parent 984d34b079
commit e31a621d6f
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1 changed files with 2 additions and 2 deletions
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4
src/common.hpp
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@ -69,7 +69,7 @@ namespace randomx {
static_assert(wtSum == 256, "Sum of instruction frequencies must be 256.");
constexpr int ArgonBlockSize = 1024;
constexpr uint32_t ArgonBlockSize = 1024;
constexpr int ArgonSaltSize = sizeof("" RANDOMX_ARGON_SALT) - 1;
constexpr int SuperscalarMaxSize = 3 * RANDOMX_SUPERSCALAR_LATENCY + 2;
constexpr int CacheLineSize = RANDOMX_DATASET_ITEM_SIZE;
@ -84,7 +84,7 @@ namespace randomx {
//Prevent some unsafe configurations.
#ifndef RANDOMX_UNSAFE
static_assert(RANDOMX_CACHE_ACCESSES * RANDOMX_ARGON_MEMORY * ArgonBlockSize + 33554432 >= RANDOMX_DATASET_BASE_SIZE + RANDOMX_DATASET_EXTRA_SIZE, "Unsafe configuration: Memory-time tradeoffs");
static_assert((uint64_t)ArgonBlockSize * RANDOMX_CACHE_ACCESSES * RANDOMX_ARGON_MEMORY + 33554432 >= (uint64_t)RANDOMX_DATASET_BASE_SIZE + RANDOMX_DATASET_EXTRA_SIZE, "Unsafe configuration: Memory-time tradeoffs");
static_assert((128 + RANDOMX_PROGRAM_SIZE * RANDOMX_FREQ_ISTORE / 256) * (RANDOMX_PROGRAM_COUNT * RANDOMX_PROGRAM_ITERATIONS) >= RANDOMX_SCRATCHPAD_L3, "Unsafe configuration: Insufficient Scratchpad writes");
static_assert(RANDOMX_PROGRAM_COUNT > 1, "Unsafe configuration: Program filtering strategies");
static_assert(RANDOMX_PROGRAM_SIZE >= 64, "Unsafe configuration: Low program entropy");