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Re: [PATCH] target/nios2: Fix semihost lseek offset computation


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH] target/nios2: Fix semihost lseek offset computation
Date: Tue, 1 Aug 2023 15:23:52 +0200
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:102.0) Gecko/20100101 Thunderbird/102.13.0

On 1/8/23 14:06, Peter Maydell wrote:
On Tue, 1 Aug 2023 at 00:53, Keith Packard via <qemu-devel@nongnu.org> wrote:

The arguments for deposit64 are (value, start, length, fieldval); this
appears to have thought they were (value, fieldval, start,
length). Reorder the parameters to match the actual function.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
  target/nios2/nios2-semi.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/nios2/nios2-semi.c b/target/nios2/nios2-semi.c
index ffd1f095f6..fc1df1dfeb 100644
--- a/target/nios2/nios2-semi.c
+++ b/target/nios2/nios2-semi.c
@@ -170,7 +170,7 @@ void do_nios2_semihosting(CPUNios2State *env)
          GET_ARG64(2);
          GET_ARG64(3);
          semihost_sys_lseek(cs, nios2_semi_u64_cb, arg0,
-                           deposit64(arg2, arg1, 32, 32), arg3);
+                           deposit64(arg2, 32, 32, arg1), arg3);
          break;

      case HOSTED_RENAME:

Fixes: d1e23cbaa403b2d ("target/nios2: Use semihosting/syscalls.h")
Cc: qemu-stable@nongnu.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

Commit 950272506d ("target/m68k: Use semihosting/syscalls.h") has the
same issue.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>




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