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authorRich Felker <dalias@aerifal.cx>2014-03-18 17:08:15 -0400
committerRich Felker <dalias@aerifal.cx>2014-03-18 17:08:15 -0400
commit5f95f965e933c5b155db75520ac27c92ddbcf400 (patch)
tree140ae575d4a3ed1ff3767c44368f71331aeb9f08 /src/misc
parentf162c064ab71dc3631abd8db9e53099a1c80b9cf (diff)
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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.
Diffstat (limited to 'src/misc')
-rw-r--r--src/misc/syscall.c14
1 files 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));
 }