From 479ba6035862a9c08ce4351c7fff8926fde4ede5 Mon Sep 17 00:00:00 2001 From: Robin Getz Date: Mon, 3 May 2010 17:23:20 +0000 Subject: Blackfin: move string functions to normal lib/ assembly Since 'extern inline' doesn't work correctly in the context of the Linux kernel (too many overriding defines), move the string functions to normal lib/ assembly files (like the existing mem funcs). This avoids the forced inline all over the kernel and allows us to place them constantly in L1. This also avoids some module failures when gcc inserts calls to string functions but the kernel build system doesn't fully consult the library archives. Signed-off-by: Robin Getz Signed-off-by: Mike Frysinger --- arch/blackfin/lib/strcpy.S | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/blackfin/lib/strcpy.S (limited to 'arch/blackfin/lib/strcpy.S') diff --git a/arch/blackfin/lib/strcpy.S b/arch/blackfin/lib/strcpy.S new file mode 100644 index 000000000000..a6a0c6363806 --- /dev/null +++ b/arch/blackfin/lib/strcpy.S @@ -0,0 +1,35 @@ +/* + * Copyright 2005-2010 Analog Devices Inc. + * + * Licensed under the ADI BSD license or the GPL-2 (or later) + */ + +#include + +/* void *strcpy(char *dest, const char *src); + * R0 = address (dest) + * R1 = address (src) + * + * Returns a pointer to the destination string dest + */ + +#ifdef CONFIG_STRCPY_L1 +.section .l1.text +#else +.text +#endif + +.align 2 + +ENTRY(_strcpy) + P0 = R0 ; /* dst*/ + P1 = R1 ; /* src*/ + +1: + R1 = B [P1++] (Z); + B [P0++] = R1; + CC = R1; + if cc jump 1b (bp); + RTS; + +ENDPROC(_strcpy) -- cgit v1.2.3