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[PATCH v7 03/64] linux-user/nios2: Drop syscall 0 "workaround"
From: |
Richard Henderson |
Subject: |
[PATCH v7 03/64] linux-user/nios2: Drop syscall 0 "workaround" |
Date: |
Thu, 21 Apr 2022 08:16:34 -0700 |
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 2e9296750d..91737c568f 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;
--
2.34.1
- [PATCH v7 00/64] nios2 fixes, cleanups, shadow reg sets, Richard Henderson, 2022/04/21
- [PATCH v7 02/64] linux-user/nios2: Fix clone child return, Richard Henderson, 2022/04/21
- [PATCH v7 03/64] linux-user/nios2: Drop syscall 0 "workaround",
Richard Henderson <=
- [PATCH v7 04/64] linux-user/nios2: Adjust error return, Richard Henderson, 2022/04/21
- [PATCH v7 01/64] linux-user/nios2: Hoist pc advance to the top of EXCP_TRAP, Richard Henderson, 2022/04/21
- [PATCH v7 05/64] linux-user/nios2: Handle special qemu syscall return values, Richard Henderson, 2022/04/21
- [PATCH v7 06/64] linux-user/nios2: Remove do_sigreturn, Richard Henderson, 2022/04/21
- [PATCH v7 07/64] linux-user/nios2: Use QEMU_ESIGRETURN from do_rt_sigreturn, Richard Henderson, 2022/04/21
- [PATCH v7 09/64] target/nios2: Remove user-only nios2_cpu_do_interrupt, Richard Henderson, 2022/04/21
- [PATCH v7 08/64] tests/tcg/nios2: Re-enable linux-user tests, Richard Henderson, 2022/04/21
- [PATCH v7 10/64] target/nios2: Remove nios2_cpu_record_sigsegv, Richard Henderson, 2022/04/21