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[PATCH v2 08/15] linux-user/sparc: Handle division by zero traps
From: |
Richard Henderson |
Subject: |
[PATCH v2 08/15] linux-user/sparc: Handle division by zero traps |
Date: |
Wed, 15 Feb 2023 19:45:09 -1000 |
In addition to the hw trap vector, there is a software trap
assigned for older sparc without hw division instructions.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/sparc/cpu_loop.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index c14eaea163..e04c842867 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -211,6 +211,11 @@ void cpu_loop (CPUSPARCState *env)
force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
break;
+ case TT_TRAP + 0x02: /* div0 */
+ case TT_DIV_ZERO:
+ force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTDIV, env->pc);
+ break;
+
case TT_TRAP + 0x03: /* flush windows */
flush_windows(env);
/* next instruction */
--
2.34.1
- [PATCH v2 00/15] linux-user/sparc: Handle missing traps, Richard Henderson, 2023/02/16
- [PATCH v2 01/15] linux-user/sparc: Raise SIGILL for all unhandled software traps, Richard Henderson, 2023/02/16
- [PATCH v2 02/15] linux-user/sparc: Tidy syscall trap, Richard Henderson, 2023/02/16
- [PATCH v2 03/15] linux-user/sparc: Tidy syscall error return, Richard Henderson, 2023/02/16
- [PATCH v2 04/15] linux-user/sparc: Use TT_TRAP for flush windows, Richard Henderson, 2023/02/16
- [PATCH v2 05/15] linux-user/sparc: Tidy window spill/fill traps, Richard Henderson, 2023/02/16
- [PATCH v2 06/15] linux-user/sparc: Fix sparc64_{get, set}_context traps, Richard Henderson, 2023/02/16
- [PATCH v2 07/15] linux-user/sparc: Handle software breakpoint trap, Richard Henderson, 2023/02/16
- [PATCH v2 08/15] linux-user/sparc: Handle division by zero traps,
Richard Henderson <=
- [PATCH v2 09/15] linux-user/sparc: Handle getcc, setcc, getpsr traps, Richard Henderson, 2023/02/16
- [PATCH v2 10/15] linux-user/sparc: Handle priviledged opcode trap, Richard Henderson, 2023/02/16
- [PATCH v2 11/15] linux-user/sparc: Handle privilidged action trap, Richard Henderson, 2023/02/16
- [PATCH v2 12/15] linux-user/sparc: Handle coprocessor disabled trap, Richard Henderson, 2023/02/16
- [PATCH v2 13/15] linux-user/sparc: Handle unimplemented flush trap, Richard Henderson, 2023/02/16
- [PATCH v2 14/15] linux-user/sparc: Handle floating-point exceptions, Richard Henderson, 2023/02/16
- [PATCH v2 15/15] linux-user/sparc: Handle tag overflow traps, Richard Henderson, 2023/02/16