diff --git a/src/shared/debug/dbgutil/elfreader.cpp b/src/shared/debug/dbgutil/elfreader.cpp
index b537b4e283..2346e8e828 100644
--- a/src/shared/debug/dbgutil/elfreader.cpp
+++ b/src/shared/debug/dbgutil/elfreader.cpp
@@ -97,7 +97,7 @@ class ElfReaderFromFile : public ElfReader
         }
     }
 
-    virtual bool ReadMemory(void* address, void* buffer, size_t size)
+    virtual bool ReadMemory(const void* address, void* buffer, size_t size)
     {
         if (m_file == NULL)
         {
@@ -163,7 +163,7 @@ TryGetBuildIdFromFile(const WCHAR* modulePath, BYTE* buffer, ULONG bufferSize, P
 
 #endif // HOST_UNIX
 
-typedef bool (*ReadMemoryCallback)(void* address, void* buffer, size_t size);
+typedef bool (*ReadMemoryCallback)(const void* address, void* buffer, size_t size);
 
 class ElfReaderWithCallback : public ElfReader
 {
@@ -181,7 +181,7 @@ class ElfReaderWithCallback : public ElfReader
     }
 
 private:
-    virtual bool ReadMemory(void* address, void* buffer, size_t size)
+    virtual bool ReadMemory(const void* address, void* buffer, size_t size)
     {
         return m_readMemory(address, buffer, size);
     }
@@ -225,7 +225,7 @@ class ElfReaderExport : public ElfReader
     }
 
 private:
-    virtual bool ReadMemory(void* address, void* buffer, size_t size)
+    virtual bool ReadMemory(const void* address, void* buffer, size_t size)
     {
         uint32_t read = 0;
         return SUCCEEDED(m_dataTarget->ReadVirtual(reinterpret_cast<CLRDATA_ADDRESS>(address), reinterpret_cast<PBYTE>(buffer), (uint32_t)size, &read));
diff --git a/src/shared/debug/dbgutil/elfreader.h b/src/shared/debug/dbgutil/elfreader.h
index 73daa53d05..7235fa6128 100644
--- a/src/shared/debug/dbgutil/elfreader.h
+++ b/src/shared/debug/dbgutil/elfreader.h
@@ -75,7 +75,7 @@ class ElfReader
     virtual void VisitModule(uint64_t baseAddress, std::string& moduleName) { };
 #endif
     virtual void VisitProgramHeader(uint64_t loadbias, uint64_t baseAddress, ElfW(Phdr)* phdr) { };
-    virtual bool ReadMemory(void* address, void* buffer, size_t size) = 0;
+    virtual bool ReadMemory(const void* address, void* buffer, size_t size) = 0;
     virtual void Trace(const char* format, ...) { };
     virtual void TraceVerbose(const char* format, ...) { };
 };
diff --git a/src/shared/pal/src/init/pal.cpp b/src/shared/pal/src/init/pal.cpp
index f6ea18445d..54e2259223 100644
--- a/src/shared/pal/src/init/pal.cpp
+++ b/src/shared/pal/src/init/pal.cpp
@@ -81,6 +81,7 @@ int CacheLineSize;
 
 #ifdef __FreeBSD__
 #include <sys/user.h>
+#include <sys/sysctl.h>
 #endif
 
 #include <algorithm>