From 5f95f965e933c5b155db75520ac27c92ddbcf400 Mon Sep 17 00:00:00 2001 From: Rich Felker Date: Tue, 18 Mar 2014 17:08:15 -0400 Subject: [PATCH] use syscall_arg_t for arguments in public syscall() function on x32, this change allows programs which use syscall() with pointers or 64-bit values as arguments to work correctly, i.e. without truncation or incorrect sign extension. on all other supported archs, syscall_arg_t is defined as long, so this change is a no-op. --- src/misc/syscall.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/src/misc/syscall.c b/src/misc/syscall.c index 15355609..9d435a97 100644 --- a/src/misc/syscall.c +++ b/src/misc/syscall.c @@ -6,14 +6,14 @@ long syscall(long n, ...) { va_list ap; - long a,b,c,d,e,f; + syscall_arg_t a,b,c,d,e,f; va_start(ap, n); - a=va_arg(ap, long); - b=va_arg(ap, long); - c=va_arg(ap, long); - d=va_arg(ap, long); - e=va_arg(ap, long); - f=va_arg(ap, long); + a=va_arg(ap, syscall_arg_t); + b=va_arg(ap, syscall_arg_t); + c=va_arg(ap, syscall_arg_t); + d=va_arg(ap, syscall_arg_t); + e=va_arg(ap, syscall_arg_t); + f=va_arg(ap, syscall_arg_t); va_end(ap); return __syscall_ret(__syscall(n,a,b,c,d,e,f)); } -- 2.25.1