From f3c13160fe2f53dd4971fe9772c9c23300a287be Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Mon, 17 Mar 2003 11:22:52 +0000 Subject: 2003-03-17 Roland McGrath PowerPC port contributed by Paul Mackerras . * sysdeps/pthread/pthread_spin_init.c: New file. * sysdeps/pthread/pthread_spin_unlock.c: New file. * sysdeps/powerpc/Makefile: New file. * sysdeps/powerpc/pthread_spin_lock.c: New file. * sysdeps/powerpc/pthread_spin_trylock.c: New file. * sysdeps/powerpc/pthreaddef.h: New file. * sysdeps/powerpc/tcb-offsets.sym: New file. * sysdeps/powerpc/td_ta_map_lwp2thr.c: New file. * sysdeps/powerpc/tls.h: New file. * sysdeps/powerpc/bits/atomic.h: New file. * sysdeps/unix/sysv/linux/libc-lowlevelmutex.c: New file. * sysdeps/unix/sysv/linux/libc-lowlevellock.c: New file. * sysdeps/unix/sysv/linux/lowlevellock.c: New file. * sysdeps/unix/sysv/linux/sem_post.c: New file. * sysdeps/unix/sysv/linux/sem_timedwait.c: New file. * sysdeps/unix/sysv/linux/sem_trywait.c: New file. * sysdeps/unix/sysv/linux/powerpc/Makefile: New file. * sysdeps/unix/sysv/linux/powerpc/createthread.c: New file. * sysdeps/unix/sysv/linux/powerpc/fork.c: New file. * sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: New file. * sysdeps/unix/sysv/linux/powerpc/pt-vfork.S: New file. * sysdeps/unix/sysv/linux/powerpc/pthread_once.c: New file. * sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: New file. * sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: New file. --- .../sysv/linux/powerpc/powerpc32/sysdep-cancel.h | 102 +++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (limited to 'nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h') diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h new file mode 100644 index 0000000000..d256f8d8b2 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h @@ -0,0 +1,102 @@ +/* Cancellable system call stubs. Linux/PowerPC version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Franz Sirl , 2003. + + 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 +#ifndef __ASSEMBLER__ +# include +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .section ".text"; \ + ENTRY (name) \ + SINGLE_THREAD_P; \ + bne- .Lpseudo_cancel; \ + DO_CALL (SYS_ify (syscall_name)); \ + PSEUDO_RET; \ + .Lpseudo_cancel: \ + stwu 1,-48(1); \ + mflr 9; \ + stw 9,52(1); \ + DOCARGS_##args; /* save syscall args around CENABLE. */ \ + CENABLE; \ + stw 3,16(1); /* store CENABLE return value (MASK). */ \ + UNDOCARGS_##args; /* restore syscall args. */ \ + DO_CALL (SYS_ify (syscall_name)); \ + mfcr 0; /* save CR/R3 around CDISABLE. */ \ + stw 3,8(1); \ + stw 0,12(1); \ + lwz 3,16(1); /* pass MASK to CDISABLE. */ \ + CDISABLE; \ + lwz 4,52(1); \ + lwz 0,12(1); /* restore CR/R3. */ \ + lwz 3,8(1); \ + mtlr 4; \ + mtcr 0; \ + addi 1,1,48; + +# define DOCARGS_0 +# define UNDOCARGS_0 + +# define DOCARGS_1 stw 3,20(1); DOCARGS_0 +# define UNDOCARGS_1 lwz 3,20(1); UNDOCARGS_0 + +# define DOCARGS_2 stw 4,24(1); DOCARGS_1 +# define UNDOCARGS_2 lwz 4,24(1); UNDOCARGS_1 + +# define DOCARGS_3 stw 5,28(1); DOCARGS_2 +# define UNDOCARGS_3 lwz 5,28(1); UNDOCARGS_2 + +# define DOCARGS_4 stw 6,32(1); DOCARGS_3 +# define UNDOCARGS_4 lwz 6,32(1); UNDOCARGS_3 + +# define DOCARGS_5 stw 7,36(1); DOCARGS_4 +# define UNDOCARGS_5 lwz 7,36(1); UNDOCARGS_4 + +# define DOCARGS_6 stw 8,40(1); DOCARGS_5 +# define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5 + +# ifdef IS_IN_libpthread +# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# else +# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# endif + +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P \ + lwz 10,MULTIPLE_THREADS_OFFSET(2); \ + cmpwi 10,0 +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif -- cgit 1.4.1