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[PATCH v2 02/15] linux-user/sparc: Tidy syscall trap
From: |
Richard Henderson |
Subject: |
[PATCH v2 02/15] linux-user/sparc: Tidy syscall trap |
Date: |
Wed, 15 Feb 2023 19:45:03 -1000 |
Use TT_TRAP.
For sparc32, 0x88 is the "Slowaris" system call, currently BAD_TRAP
in the kernel's ttable_32.S. For sparc64, 0x110 is tl0_linux32, the
sparc32 trap, now folded into the TARGET_ABI32 case via TT_TRAP.
For sparc64, there does still exist trap 0x111 as tl0_oldlinux64,
which was replaced by 0x16d as tl0_linux64 in 1998. Since no one
has noticed, don't bother implementing it now.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/sparc/cpu_loop.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index c120c42278..d31ea057db 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -149,6 +149,12 @@ static void flush_windows(CPUSPARCState *env)
#endif
}
+#ifdef TARGET_ABI32
+#define TARGET_TT_SYSCALL (TT_TRAP + 0x10) /* t_linux */
+#else
+#define TARGET_TT_SYSCALL (TT_TRAP + 0x6d) /* tl0_linux64 */
+#endif
+
void cpu_loop (CPUSPARCState *env)
{
CPUState *cs = env_cpu(env);
@@ -167,13 +173,7 @@ void cpu_loop (CPUSPARCState *env)
}
switch (trapnr) {
-#ifndef TARGET_SPARC64
- case 0x88:
- case 0x90:
-#else
- case 0x110:
- case 0x16d:
-#endif
+ case TARGET_TT_SYSCALL:
ret = do_syscall (env, env->gregs[1],
env->regwptr[0], env->regwptr[1],
env->regwptr[2], env->regwptr[3],
--
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 <=
- [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, 2023/02/16
- [PATCH v2 09/15] linux-user/sparc: Handle getcc, setcc, getpsr traps, Richard Henderson, 2023/02/16