From 917b9eebbc6dd580e2fa5a4e2b18ea609655b19e Mon Sep 17 00:00:00 2001 From: Vineet Gupta Date: Fri, 13 Dec 2013 14:49:25 +0530 Subject: ARC port to uClibc For this port, I would like to give due credit to: - Folks from Codito technologies (Sameer, Amit, Kanika, Ramana,...) who did the very first port - ARC UK from 2007-2009 (Joern, Irfan, Khurram, Phil... - Late Brendan Kehoe (may he RIP) Signed-off-by: Vineet Gupta Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/arc/__longjmp.S | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 libc/sysdeps/linux/arc/__longjmp.S (limited to 'libc/sysdeps/linux/arc/__longjmp.S') diff --git a/libc/sysdeps/linux/arc/__longjmp.S b/libc/sysdeps/linux/arc/__longjmp.S new file mode 100644 index 000000000..91d1852af --- /dev/null +++ b/libc/sysdeps/linux/arc/__longjmp.S @@ -0,0 +1,38 @@ +/* + * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com) + * + * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. + */ + +#include + +;@ r0 = jump buffer from which regs will be restored +;@ r1 = value that setjmp( ) will return due to this longjmp + +ENTRY(__longjmp) + + ld_s r13, [r0] + ld_s r14, [r0,4] + ld r15, [r0,8] + ld r16, [r0,12] + ld r17, [r0,16] + ld r18, [r0,20] + ld r19, [r0,24] + ld r20, [r0,28] + ld r21, [r0,32] + ld r22, [r0,36] + ld r23, [r0,40] + ld r24, [r0,44] + ld r25, [r0,48] + + ld blink, [r0,60] ; load it early enough to not stall the pipeline + ld fp, [r0,52] + ld sp, [r0,56] + + mov.f r0, r1 ; get the setjmp return value(due to longjmp) in place + + j.d [blink] ; to caller of setjmp location, right after the call + mov.z r0, 1 ; can't let setjmp return 0 when it is due to longjmp + +END(__longjmp) +libc_hidden_def(__longjmp) -- cgit v1.2.3