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[PULL 24/28] linux-user/sparc: Handle coprocessor disabled trap


From: Laurent Vivier
Subject: [PULL 24/28] linux-user/sparc: Handle coprocessor disabled trap
Date: Fri, 10 Mar 2023 23:09:23 +0100

From: Richard Henderson <richard.henderson@linaro.org>

Since qemu does not implement a sparc coprocessor, all such
instructions raise this trap.  Because of that, we never raise
the coprocessor exception trap, which would be vector 0x28.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230216054516.1267305-13-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/sparc/cpu_loop.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 43f19fbd9141..bf7e10216fe1 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -311,6 +311,10 @@ void cpu_loop (CPUSPARCState *env)
             /* Note do_privact defers to do_privop. */
             force_sig_fault(TARGET_SIGILL, TARGET_ILL_PRVOPC, env->pc);
             break;
+#else
+        case TT_NCP_INSN:
+            force_sig_fault(TARGET_SIGILL, TARGET_ILL_COPROC, env->pc);
+            break;
 #endif
         case EXCP_ATOMIC:
             cpu_exec_step_atomic(cs);
-- 
2.39.2




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