The C6X port

This adds support for the TI C6X family of processors.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com>
Signed-off-by: Bernd Schmidt <bernds@codesourcery.com>

1 files changed, 49 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/c6x/syscall.c b/libc/sysdeps/linux/c6x/syscall.c
new file mode 100644
index 000000000..ea947b28e
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/syscall.c
@@ -0,0 +1,49 @@
+/*
+ *  syscall.c
+ *
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2006, 2010 Texas Instruments Incorporated
+ *  Author: Thomas Charleux (thomas.charleux@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <features.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <stdarg.h>
+
+long int syscall (long int __sysno, ...)
+{
+	register long no __asm__("B0");
+	register long a __asm__("A4");
+	register long b __asm__("B4");
+	register long c __asm__("A6");
+	register long d __asm__("B6");
+	register long e __asm__("A8");
+	register long f __asm__("B8");
+	long __res;
+	va_list ap;
+
+	va_start( ap, __sysno);
+	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);
+	va_end( ap );
+
+	no = __sysno;
+
+	__asm__ __volatile__ ("SWE" : "=a" (a) : "a" (a), "b" (b), "a" (c), "b" (d), "a" (e), "b" (f), "b" (no)
+			      : "memory", "cc");
+
+	__res = a;
+	__SYSCALL_RETURN (long);
+}