[v4] linux-user: Move signal trampolines to new page

[PATCH v4 16/25] linux-user/nios2: Document non-use of setup_sigtramp

Posted by Richard Henderson 3 years, 11 months ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/nios2/target_signal.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/linux-user/nios2/target_signal.h b/linux-user/nios2/target_signal.h
index aebf749f12..fe266c4c51 100644
--- a/linux-user/nios2/target_signal.h
+++ b/linux-user/nios2/target_signal.h
@@ -19,4 +19,7 @@ typedef struct target_sigaltstack {
 
 #include "../generic/signal.h"
 
+/* Nios2 uses a fixed address on the kuser page for sigreturn. */
+#define TARGET_ARCH_HAS_SIGTRAMP_PAGE 0
+
 #endif /* NIOS2_TARGET_SIGNAL_H */
-- 
2.25.1

Re: [PATCH v4 16/25] linux-user/nios2: Document non-use of setup_sigtramp

Posted by Peter Maydell 3 years, 11 months ago

On Tue, 28 Sept 2021 at 03:00, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  linux-user/nios2/target_signal.h | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/linux-user/nios2/target_signal.h b/linux-user/nios2/target_signal.h
> index aebf749f12..fe266c4c51 100644
> --- a/linux-user/nios2/target_signal.h
> +++ b/linux-user/nios2/target_signal.h
> @@ -19,4 +19,7 @@ typedef struct target_sigaltstack {
>
>  #include "../generic/signal.h"
>
> +/* Nios2 uses a fixed address on the kuser page for sigreturn. */
> +#define TARGET_ARCH_HAS_SIGTRAMP_PAGE 0
> +

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM