target/nios2: Honour -semihosting-config userspace=on

Honour the commandline -semihosting-config userspace=on option, instead of always permitting userspace semihosting calls in system emulation mode, by passing the correct value to the is_userspace argument of semihosting_enabled(). Note that this is a behaviour change: if the user wants to do semihosting calls from userspace they must now specifically enable them on the command line. nios2 semihosting is not implemented for linux-user builds. Signed-off-by: Peter Maydell <[email protected]> Reviewed-by: Richard Henderson <[email protected]> Message-Id: <[email protected]> Signed-off-by: Richard Henderson <[email protected]> (cherry picked from commit cab9f19)
zephyrproject-rtos · Oct 16, 2024 · b2a5fad · b2a5fad
1 parent 157cd1b
commit b2a5fad
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/target/nios2/translate.c b/target/nios2/translate.c
@@ -649,8 +649,9 @@ static void gen_break(DisasContext *dc, uint32_t code, uint32_t flags)
 {
 #ifndef CONFIG_USER_ONLY
     /* The semihosting instruction is "break 1".  */
+    bool is_user = dc->base.tb->flags & CR_STATUS_U;
     R_TYPE(instr, code);
-    if (semihosting_enabled() && instr.imm5 == 1) {
+    if (semihosting_enabled(is_user) && instr.imm5 == 1) {
         t_gen_helper_raise_exception(dc, EXCP_SEMIHOST);
         return;
     }