summary refs log tree commit diff stats
path: root/linux-user/nios2/cpu_loop.c
diff options
context:
space:
mode:
authorRichard Henderson <richard.henderson@linaro.org>2022-04-21 08:17:29 -0700
committerRichard Henderson <richard.henderson@linaro.org>2022-04-26 08:17:05 -0700
commit3747727aad1841bd07b7c9588b6d9b32182b1121 (patch)
tree4588139db3b5b5b3afd8ef311b9da8710cdffad6 /linux-user/nios2/cpu_loop.c
parente84f1768449330a5b4c62a8aaa68f102ba6ec573 (diff)
downloadfocaccia-qemu-3747727aad1841bd07b7c9588b6d9b32182b1121.tar.gz
focaccia-qemu-3747727aad1841bd07b7c9588b6d9b32182b1121.zip
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>
Diffstat (limited to 'linux-user/nios2/cpu_loop.c')
-rw-r--r--linux-user/nios2/cpu_loop.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index a5e86990e2..da77ede76b 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -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: