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linux-user/sparc: Tidy syscall trap 

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>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230216054516.1267305-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Richard Henderson 2023-02-15 19:45:03 -10:00 committed by Laurent Vivier
parent 895ce8bb53
commit 3116f020d4
1 changed files with 7 additions and 7 deletions
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14
linux-user/sparc/cpu_loop.c
View File

@ -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],