From 6af3332a4cbd1ffbc81f74759ef7c5e1a87d2e10 Mon Sep 17 00:00:00 2001 From: Vincent Ren-Wei Chen Date: Tue, 17 Jan 2017 07:31:24 +0100 Subject: nds32: add NPTL/TLS, *context function, libm changes and code cleanup This commit includes following features. 1. Support NPTL/TLS 2. Add libm function which is used to handle FP rounding and excpetions (ex: fclrexcpt,fedisblxcpti,feenablxcpt... ) 3. Add *context function for operating user context (ex: setcontext,getcontext,makecontext... ) 4. Change the return flow from signal handler 5. Cleanup of old code The testsuite only has 2 errors, tst-cpuclock1 and tst-cputimer1, which are related to timing accuracy. (math and locale tests are disabled) Signed-off-by: Vincent Ren-Wei Chen --- .../nptl/sysdeps/unix/sysv/linux/nds32/vfork.S | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/nds32/vfork.S (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/nds32/vfork.S') diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/nds32/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/nds32/vfork.S new file mode 100644 index 000000000..f11f76ae1 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/nds32/vfork.S @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2016-2017 Andes Technology, Inc. + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ + +/* Copyright (C) 2013 Free Software Foundation, Inc. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include + +/* Save the PID value. */ +#define SAVE_PID \ + lwi $r1, [$r25 + PID_OFFSET];/* Get the thread pointer. */ \ + subri $r1, $r1, 0x0; /* Negate it. */ \ + bnez $r1, 1f; /* If it was zero... */ \ + sethi $r1, 0x80000; /* use 0x80000000 instead. */ \ +1: swi $r1, [$r25 + PID_OFFSET];/* Store the temporary PID. */ + +/* Restore the old PID value in the parent. */ +#define RESTORE_PID \ + beqz $r0, 1f; /* If we are the parent... */ \ + lwi $r1, [$r25 + PID_OFFSET];/* Get the thread pointer. */ \ + subri $r1, $r1, 0x0; /* Re-negate it. */ \ + sethi $r2, 0x80000; /* Load 0x80000000... */ \ + bne $r1, $r2, 2f; /* ... compare against it... */ \ + movi $r1, 0; /* ... use 0 instead. */ \ +2: swi $r1, [$r25 + PID_OFFSET];/* Restore the PID. */ \ +1: + +#include <../../../../../../../libc/sysdeps/linux/nds32/vfork.S> -- cgit v1.2.3