#define OPC_BUF_SIZE 512
#define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
+/* Maximum size a TCG op can expand to. This is complicated because a
+ single op may require several host instructions and regirster reloads.
+ For now take a wild guess at 128 bytes, which should allow at least
+ a couple of fixup instructions per argument. */
+#define TCG_MAX_OP_SIZE 128
+
#define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * MAX_OPC_PARAM)
extern target_ulong gen_opc_pc[OPC_BUF_SIZE];
nb_tbs, nb_tbs > 0 ?
((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0);
#endif
+ if ((unsigned long)(code_gen_ptr - code_gen_buffer) > CODE_GEN_BUFFER_SIZE)
+ cpu_abort(env1, "Internal error: code buffer overflow\n");
+
nb_tbs = 0;
for(env = first_cpu; env != NULL; env = env->next_cpu) {
static unsigned long max;
if (max == 0) {
+ max = TCG_MAX_OP_SIZE;
#define DEF(s, n, copy_size) max = copy_size > max? copy_size : max;
#include "tcg-opc.h"
#undef DEF