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target/nios2: Remove assignment to env in handle_instruction 

Direct assignments to env during translation do not work.

As it happens, the only way we can get here is if env->pc
is already set to dc->pc.  We will trap on the first insn
we execute anywhere on the page.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-06-19 22:15:35 -07:00
parent d67cbd9321
commit 50e1a0cd3c
1 changed files with 2 additions and 1 deletions
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3
target/nios2/translate.c
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@ -740,14 +740,15 @@ static void handle_instruction(DisasContext *dc, CPUNios2State *env)
uint32_t code;
uint8_t op;
const Nios2Instruction *instr;
#if defined(CONFIG_USER_ONLY)
/* FIXME: Is this needed ? */
if (dc->pc >= 0x1000 && dc->pc < 0x2000) {
env->regs[R_PC] = dc->pc;
t_gen_helper_raise_exception(dc, 0xaa);
return;
}
#endif
code = cpu_ldl_code(env, dc->pc);
op = get_opcode(code);