initial import of linux support

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40356

core/vm/sp_vm_basecontext.cpp

@@ -285,7 +285,7 @@ int BaseContext::HeapPop(cell_t local_addr)
 	addr = (cell_t *)(ctx->memory + local_addr);
 	cellcount = (*addr) * sizeof(cell_t);
 	/* check if this memory count looks valid */
-	if (ctx->hp - cellcount - sizeof(cell_t) != local_addr)
+	if ((signed)(ctx->hp - cellcount - sizeof(cell_t)) != local_addr)
 	{
 		return SP_ERROR_INVALID_ADDRESS;
 	}
@@ -596,8 +596,6 @@ int BaseContext::PushCellArray(cell_t *local_addr, cell_t **phys_addr, cell_t ar
 
 int BaseContext::LocalToString(cell_t local_addr, char **addr)
 {
-	int len = 0;
-
 	if (((local_addr >= ctx->hp) && (local_addr < ctx->sp)) || (local_addr < 0) || ((ucell_t)local_addr >= ctx->mem_size))
 	{
 		return SP_ERROR_INVALID_ADDRESS;
@@ -855,7 +853,7 @@ IPluginFunction *BaseContext::GetFunctionById(funcid_t func_id)
 			m_priv_funcs[func_id] = new CFunction(save, this);
 			pFunc = m_priv_funcs[func_id];
 		}
-#endif 0
+#endif
 		assert(false);
 	}
 

core/vm/sp_vm_engine.cpp

@@ -10,7 +10,7 @@
 #if defined WIN32
  #define WIN32_LEAN_AND_MEAN
  #include <windows.h>
-#else if defined __GNUC__
+#elif defined __GNUC__
  #include <sys/mman.h>
 #endif
 
@@ -85,7 +85,7 @@ void *SourcePawnEngine::ExecAlloc(size_t size)
 {
 #if defined WIN32
 	return VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
-#else if defined __GNUC__
+#elif defined __GNUC__
 	void *base = memalign(sysconf(_SC_PAGESIZE), size);
 	if (mprotect(base, size, PROT_READ|PROT_WRITE|PROT_EXEC) != 0)
 	{
@@ -100,7 +100,7 @@ void SourcePawnEngine::ExecFree(void *address)
 {
 #if defined WIN32
 	VirtualFree(address, 0, MEM_RELEASE);
-#else if defined __GNUC__
+#elif defined __GNUC__
 	free(address);
 #endif
 }

core/vm/sp_vm_engine.h

@@ -27,10 +27,10 @@ public:
 	virtual void ResetTrace();
 	virtual const char *GetLastNative(uint32_t *index);
 private:
+	int m_Error;
+	const char *m_pMsg;
 	TracedCall *m_pStart;
 	TracedCall *m_pIterator;
-	const char *m_pMsg;
-	int m_Error;
 	uint32_t m_Native;
 };
 

core/vm/sp_vm_function.cpp

@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include "PluginSys.h"
 
 /********************