From ee92c0fe5c1b9d59508273916e2c9a75b68dbc13 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Thu, 21 Apr 2016 01:25:29 +0200 Subject: nds32: add support for new architecture Add support for Andes Technology NDS32 architecture. See here http://www.andestech.com/en/index/index.htm for more informaton. Verification of the port from an older uClibc port was done on a sponsored AG101p board. The testsuite only has 5 errors, three are related to an existing bug in dlclose() with LT.old, also happening on cris32 and m68k. Failures to fallocate/posix_fallocate are unresolved. Thanks to Andes Technology sponsoring the hardware and being very helpful while doing the uClibc-ng porting. Signed-off-by: Waldemar Brodkorb --- libc/sysdeps/linux/nds32/bsd-_setjmp.S | 35 ++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 libc/sysdeps/linux/nds32/bsd-_setjmp.S (limited to 'libc/sysdeps/linux/nds32/bsd-_setjmp.S') diff --git a/libc/sysdeps/linux/nds32/bsd-_setjmp.S b/libc/sysdeps/linux/nds32/bsd-_setjmp.S new file mode 100644 index 000000000..a7ab1c731 --- /dev/null +++ b/libc/sysdeps/linux/nds32/bsd-_setjmp.S @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2016 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* This just does a tail-call to `__sigsetjmp (ARG, 0)'. + We cannot do it in C because it must be a tail-call, so frame-unwinding + in setjmp doesn't clobber the state restored by longjmp. */ + +#include + +ENTRY(_setjmp) + move $r1, #0 + +/* Make a tail call to __sigsetjmp. */ +#ifdef PIC + /* Initialize $r2 as $gp value. */ + sethi $r2, hi20(_GLOBAL_OFFSET_TABLE_-8) + ori $r2, $r2, lo12(_GLOBAL_OFFSET_TABLE_-4) + mfusr $r15, $pc + add $r2, $r15, $r2 + + ! la $r3, __sigsetjmp@PLT + sethi $r3, hi20(__sigsetjmp@PLT) + ori $r3, $r3, lo12(__sigsetjmp@PLT) + add $r3, $r3, $r2 + + jr $r3 +#else /* NOT PIC */ + la $r15, C_SYMBOL_NAME(__sigsetjmp) + jr $r15 +#endif + +END(_setjmp) +libc_hidden_def(_setjmp) -- cgit v1.2.3