diff options
author | Markos Chandras <markos.chandras@imgtec.com> | 2010-11-18 14:58:01 +0000 |
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committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2013-03-14 22:47:08 +0100 |
commit | daecc9a410a6f23d80daf8ce3afd280fea329e63 (patch) | |
tree | 8d603dd538809431cc01b9e656c827d1f0709052 /libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S | |
parent | 20221281b3d67880439cd1d16c151f4528d034fb (diff) |
metag: Add NPTL support
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S')
-rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S | 56 |
1 files changed, 56 insertions, 0 deletions
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 <tcb-offsets.h> +#include <asm/unistd.h> + +#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> |