From ae017a5b95962f68ece21065376cd3266998fd02 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Sat, 29 Sep 2012 15:32:39 +0000 Subject: [PATCH] linux-user: register align p{read, write}64 pread64 and pwrite64 pass 64bit parameters which for some architectures need to be aligned to special argument pairs, creating a gap argument. Handle this special case the same way we handle it in other places of the code. Reported-by: Alex Barcelo Signed-off-by: Alexander Graf Tested-by: Alex Barcelo Reviewed-by: Peter Maydell Signed-off-by: Riku Voipio --- linux-user/syscall.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 3da8e5137c..14a6b32ab1 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -7467,12 +7467,20 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_NR_pread64 case TARGET_NR_pread64: + if (regpairs_aligned(cpu_env)) { + arg4 = arg5; + arg5 = arg6; + } if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) goto efault; ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); unlock_user(p, arg2, ret); break; case TARGET_NR_pwrite64: + if (regpairs_aligned(cpu_env)) { + arg4 = arg5; + arg5 = arg6; + } if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) goto efault; ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5)));