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linux-user/nios2: Handle various SIGILL exceptions 

We missed out on a couple of exception types that may
legitimately be raised by a userland program.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220421151735.31996-59-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-04-21 08:17:29 -07:00
parent e84f176844
commit 3747727aad
1 changed files with 12 additions and 0 deletions
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12
linux-user/nios2/cpu_loop.c
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@ -50,6 +50,18 @@ void cpu_loop(CPUNios2State *env)
env->ctrl[CR_BADADDR]);
break;
case EXCP_ILLEGAL:
case EXCP_UNIMPL:
/* Match kernel's handle_illegal_c(). */
env->pc -= 4;
force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPC, env->pc);
break;
case EXCP_SUPERI:
/* Match kernel's handle_supervisor_instr(). */
env->pc -= 4;
force_sig_fault(TARGET_SIGILL, TARGET_ILL_PRVOPC, env->pc);
break;
case EXCP_TRAP:
switch (env->error_code) {
case 0: