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[PATCH v8 02/68] linux-user/nios2: Fix clone child return
From: |
Richard Henderson |
Subject: |
[PATCH v8 02/68] linux-user/nios2: Fix clone child return |
Date: |
Fri, 22 Apr 2022 09:51:32 -0700 |
The child side of clone needs to set the secondary
syscall return value, r7, to indicate syscall success.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220421151735.31996-3-richard.henderson@linaro.org>
---
linux-user/nios2/target_cpu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/linux-user/nios2/target_cpu.h b/linux-user/nios2/target_cpu.h
index 2d2008f002..830b4c0741 100644
--- a/linux-user/nios2/target_cpu.h
+++ b/linux-user/nios2/target_cpu.h
@@ -27,6 +27,7 @@ static inline void cpu_clone_regs_child(CPUNios2State *env,
target_ulong newsp,
env->regs[R_SP] = newsp;
}
env->regs[R_RET0] = 0;
+ env->regs[7] = 0;
}
static inline void cpu_clone_regs_parent(CPUNios2State *env, unsigned flags)
--
2.34.1
- [PATCH v8 00/68] nios2 fixes, cleanups, shadow reg sets, Richard Henderson, 2022/04/22
- [PATCH v8 02/68] linux-user/nios2: Fix clone child return,
Richard Henderson <=
- [PATCH v8 03/68] linux-user/nios2: Drop syscall 0 "workaround", Richard Henderson, 2022/04/22
- [PATCH v8 04/68] linux-user/nios2: Adjust error return, Richard Henderson, 2022/04/22
- [PATCH v8 01/68] linux-user/nios2: Hoist pc advance to the top of EXCP_TRAP, Richard Henderson, 2022/04/22
- [PATCH v8 05/68] linux-user/nios2: Handle special qemu syscall return values, Richard Henderson, 2022/04/22
- [PATCH v8 06/68] linux-user/nios2: Remove do_sigreturn, Richard Henderson, 2022/04/22
- [PATCH v8 07/68] linux-user/nios2: Use QEMU_ESIGRETURN from do_rt_sigreturn, Richard Henderson, 2022/04/22
- [PATCH v8 08/68] tests/tcg/nios2: Re-enable linux-user tests, Richard Henderson, 2022/04/22
- [PATCH v8 09/68] target/nios2: Remove user-only nios2_cpu_do_interrupt, Richard Henderson, 2022/04/22
- [PATCH v8 10/68] target/nios2: Remove nios2_cpu_record_sigsegv, Richard Henderson, 2022/04/22
- [PATCH v8 11/68] target/nios2: Build helper.c for system only, Richard Henderson, 2022/04/22