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[PATCH v2 2/8] linux-user/nios2: Fix clone child return
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From: |
Richard Henderson |
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Subject: |
[PATCH v2 2/8] linux-user/nios2: Fix clone child return |
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Date: |
Fri, 25 Mar 2022 13:52:44 -0600 |
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>
---
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)
--
2.25.1
- [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 <=
- [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, 2022/03/25
- [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