From daecc9a410a6f23d80daf8ce3afd280fea329e63 Mon Sep 17 00:00:00 2001 From: Markos Chandras Date: Thu, 18 Nov 2010 14:58:01 +0000 Subject: metag: Add NPTL support Signed-off-by: Markos Chandras Signed-off-by: Bernhard Reutner-Fischer --- .../nptl/sysdeps/unix/sysv/linux/metag/vfork.S | 56 ++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S') diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S new file mode 100644 index 000000000..51fcfbbe4 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S @@ -0,0 +1,56 @@ +/* Copyright (C) 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include + +#ifdef __PIC__ +#define __VFORK_METAG_LOAD_TP ___metag_load_tp@PLT +#else +#define __VFORK_METAG_LOAD_TP ___metag_load_tp +#endif + +/* Save the PID value. */ +#define SAVE_PID \ + SETL [A0StP++], D0FrT, D1RtP; \ + CALLR D1RtP, __VFORK_METAG_LOAD_TP; \ + SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ + GETD D0FrT, [D0Re0 + #PID]; \ + NEGS D0FrT, D0FrT; \ + BNZ 1f; \ + MOVT D0FrT, #0x8000; \ +1: SETD [D0Re0 + #PID], D0FrT; \ + GETL D0FrT, D1RtP, [--A0StP]; + +#define RESTORE_PID \ + CMP D0Re0, #0; \ + BEQ 1f; \ + MSETL [A0StP++], D0Re0, D0FrT; \ + CALLR D1RtP, __VFORK_METAG_LOAD_TP; \ + SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ + GETD D0FrT, [D0Re0 + #PID]; \ + NEG D0FrT, D0FrT; \ + MOVT D1Re0, #0x8000; \ + CMP D0FrT, D1Re0; \ + XOREQ D0FrT, D0FrT, D0FrT; \ + SETD [D0Re0 + #PID], D0FrT; \ + GETL D0FrT, D1RtP, [--A0StP]; \ + GETL D0Re0, D1Re0, [--A0StP]; \ +1: + +#include <../../../../../../../libc/sysdeps/linux/metag/vfork.S> -- cgit v1.2.3