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[PULL 03/68] linux-user/nios2: Drop syscall 0 "workaround"
From: |
Richard Henderson |
Subject: |
[PULL 03/68] linux-user/nios2: Drop syscall 0 "workaround" |
Date: |
Tue, 26 Apr 2022 11:18:02 -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>
Message-Id: <20220421151735.31996-4-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
- [PULL 05/68] linux-user/nios2: Handle special qemu syscall return values, (continued)
- [PULL 05/68] linux-user/nios2: Handle special qemu syscall return values, Richard Henderson, 2022/04/26
- [PULL 16/68] target/nios2: Split PC out of env->regs[], Richard Henderson, 2022/04/26
- [PULL 07/68] linux-user/nios2: Use QEMU_ESIGRETURN from do_rt_sigreturn, Richard Henderson, 2022/04/26
- [PULL 12/68] linux-user/nios2: Use force_sig_fault for EXCP_DEBUG, Richard Henderson, 2022/04/26
- [PULL 26/68] target/nios2: Use hw/registerfields.h for CR_TLBADDR fields, Richard Henderson, 2022/04/26
- [PULL 22/68] target/nios2: Split control registers away from general registers, Richard Henderson, 2022/04/26
- [PULL 04/68] linux-user/nios2: Adjust error return, Richard Henderson, 2022/04/26
- [PULL 08/68] tests/tcg/nios2: Re-enable linux-user tests, Richard Henderson, 2022/04/26
- [PULL 11/68] target/nios2: Build helper.c for system only, Richard Henderson, 2022/04/26
- [PULL 17/68] target/nios2: Split out helper for eret instruction, Richard Henderson, 2022/04/26
- [PULL 03/68] linux-user/nios2: Drop syscall 0 "workaround",
Richard Henderson <=
- [PULL 02/68] linux-user/nios2: Fix clone child return, Richard Henderson, 2022/04/26
- [PULL 06/68] linux-user/nios2: Remove do_sigreturn, Richard Henderson, 2022/04/26
- [PULL 10/68] target/nios2: Remove nios2_cpu_record_sigsegv, Richard Henderson, 2022/04/26
- [PULL 13/68] target/nios2: Check supervisor on eret, Richard Henderson, 2022/04/26
- [PULL 14/68] target/nios2: Stop generating code if gen_check_supervisor fails, Richard Henderson, 2022/04/26
- [PULL 18/68] target/nios2: Fix BRET instruction, Richard Henderson, 2022/04/26
- [PULL 20/68] linux-user/nios2: Only initialize SP and PC in target_cpu_copy_regs, Richard Henderson, 2022/04/26
- [PULL 21/68] target/nios2: Remove cpu_interrupts_enabled, Richard Henderson, 2022/04/26
- [PULL 23/68] target/nios2: Clean up nios2_cpu_dump_state, Richard Henderson, 2022/04/26
- [PULL 25/68] target/nios2: Use hw/registerfields.h for CR_EXCEPTION fields, Richard Henderson, 2022/04/26