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[PATCH v2 3/8] linux-user/nios2: Drop syscall 0 "workaround"
From: |
Richard Henderson |
Subject: |
[PATCH v2 3/8] linux-user/nios2: Drop syscall 0 "workaround" |
Date: |
Fri, 25 Mar 2022 13:52:45 -0600 |
Syscall 0 is __NR_io_setup for this target; there is nothing
to work around.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Fixes: a0a839b65b6 ("nios2: Add usermode binaries emulation")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/nios2/cpu_loop.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index 2768ae61dd..a285781fc5 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -55,10 +55,6 @@ void cpu_loop(CPUNios2State *env)
env->regs[7], env->regs[8], env->regs[9],
0, 0);
- if (env->regs[2] == 0) { /* FIXME: syscall 0 workaround */
- ret = 0;
- }
-
env->regs[2] = abs(ret);
/* Return value is 0..4096 */
env->regs[7] = ret > 0xfffff000u;
--
2.25.1
- [PATCH v2 for-7.1 0/8] linux-user/nios2: Fix clone and sigreturn, Richard Henderson, 2022/03/25
- [PATCH v2 5/8] linux-user/nios2: Handle special qemu syscall return values, Richard Henderson, 2022/03/25
- [PATCH v2 2/8] linux-user/nios2: Fix clone child return, Richard Henderson, 2022/03/25
- [PATCH v2 1/8] linux-user/nios2: Hoist pc advance to the top of EXCP_TRAP, Richard Henderson, 2022/03/25
- [PATCH v2 3/8] linux-user/nios2: Drop syscall 0 "workaround",
Richard Henderson <=
- [PATCH v2 7/8] linux-user/nios2: Use QEMU_ESIGRETURN from do_rt_sigreturn, Richard Henderson, 2022/03/25
- [PATCH v2 6/8] linux-user/nios2: Remove do_sigreturn, Richard Henderson, 2022/03/25
- [PATCH v2 8/8] tests/tcg/nios2: Re-enable linux-user tests, Richard Henderson, 2022/03/25
- [PATCH v2 4/8] linux-user/nios2: Adjust error return, Richard Henderson, 2022/03/25