diff options
Diffstat (limited to 'libpthread/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h')
| -rw-r--r-- | libpthread/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h new file mode 100644 index 000000000..901982ec8 --- /dev/null +++ b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h @@ -0,0 +1,126 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 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, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <tls.h> +#ifndef __ASSEMBLER__ +# include <linuxthreads/internals.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt + +# 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: \ + stdu 1,-128(1); \ + mflr 9; \ + std 9,128+16(1); \ + DOCARGS_##args; /* save syscall args around CENABLE. */ \ + CENABLE; \ + std 3,72(1); /* store CENABLE return value (MASK). */ \ + UNDOCARGS_##args; /* restore syscall args. */ \ + DO_CALL (SYS_ify (syscall_name)); \ + mfcr 0; /* save CR/R3 around CDISABLE. */ \ + std 3,64(1); \ + std 0,8(1); \ + ld 3,72(1); /* pass MASK to CDISABLE. */ \ + CDISABLE; \ + ld 9,128+16(1); \ + ld 0,8(1); /* restore CR/R3. */ \ + ld 3,64(1); \ + mtlr 9; \ + mtcr 0; \ + addi 1,1,128; + +# define DOCARGS_0 +# define UNDOCARGS_0 + +# define DOCARGS_1 std 3,80(1); DOCARGS_0 +# define UNDOCARGS_1 ld 3,80(1); UNDOCARGS_0 + +# define DOCARGS_2 std 4,88(1); DOCARGS_1 +# define UNDOCARGS_2 ld 4,88(1); UNDOCARGS_1 + +# define DOCARGS_3 std 5,96(1); DOCARGS_2 +# define UNDOCARGS_3 ld 5,96(1); UNDOCARGS_2 + +# define DOCARGS_4 std 6,104(1); DOCARGS_3 +# define UNDOCARGS_4 ld 6,104(1); UNDOCARGS_3 + +# define DOCARGS_5 std 7,112(1); DOCARGS_4 +# define UNDOCARGS_5 ld 7,112(1); UNDOCARGS_4 + +# define DOCARGS_6 std 8,120(1); DOCARGS_5 +# define UNDOCARGS_6 ld 8,120(1); UNDOCARGS_5 + +# ifdef IS_IN_libpthread +# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# define __local_multiple_threads __pthread_multiple_threads +# elif !defined NOT_IN_libc +# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) +# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# define __local_multiple_threads __libc_multiple_threads +# else +# define CENABLE bl JUMPTARGET(__librt_enable_asynccancel); nop +# define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel); nop +# define __local_multiple_threads __librt_multiple_threads +# endif + +# ifdef HAVE_TLS_SUPPORT +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P \ + lwz 10,MULTIPLE_THREADS_OFFSET(13); \ + cmpwi 10,0 +# endif +# else /* !HAVE_TLS_SUPPORT */ +# ifndef __ASSEMBLER__ +extern int __local_multiple_threads +# if !defined NOT_IN_libc || defined IS_IN_libpthread + attribute_hidden; +# else + ; +# endif +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) +# else +# define SINGLE_THREAD_P \ + .section ".toc","aw"; \ +.LC__local_multiple_threads:; \ + .tc __local_multiple_threads[TC],__local_multiple_threads; \ + .previous; \ + ld 10,.LC__local_multiple_threads@toc(2); \ + lwz 10,0(10); \ + cmpwi 10,0 +# endif +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif |