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| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h b/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h new file mode 100644 index 0000000000..ea8fd143ff --- /dev/null +++ b/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h @@ -0,0 +1,127 @@ +/* Copyright (C) 2003 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 <sysdep.h> +#ifndef __ASSEMBLER__ +# include <linuxthreads/internals.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +# ifdef PROF +# define PSEUDO_PROF \ + .set noat; \ + lda AT, _mcount; \ + jsr AT, (AT), _mcount; \ + .set at +# else +# define PSEUDO_PROF +# endif + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .globl name; \ + .align 4; \ + .ent name, 0; \ +__LABEL(name) \ + ldgp gp, 0(pv); \ + .prologue 1; \ + PSEUDO_PROF; \ + SINGLE_THREAD_P(t0); \ + beq t0, $pseudo_cancel; \ + lda v0, SYS_ify(syscall_name); \ + call_pal PAL_callsys; \ + bne a3, $syscall_error; \ +__LABEL($pseudo_ret) \ + .subsection 2; \ +__LABEL($pseudo_cancel) \ + subq sp, 64, sp; \ + stq ra, 0(sp); \ + SAVE_ARGS_##args; \ + CENABLE; \ + LOAD_ARGS_##args; \ + lda v0, SYS_ify(syscall_name); \ + call_pal PAL_callsys; \ + stq v0, 8(sp); \ + stq a3, 16(sp); \ + CDISABLE; \ + ldq ra, 0(sp); \ + ldq v0, 8(sp); \ + ldq a3, 16(sp); \ + addq sp, 64, sp; \ + beq a3, $pseudo_ret; \ +__LABEL($syscall_error) \ + SYSCALL_ERROR_HANDLER; \ + END(name); \ + .previous + +# undef PSEUDO_END +# define PSEUDO_END(sym) + +# define SAVE_ARGS_0 /* Nothing. */ +# define SAVE_ARGS_1 SAVE_ARGS_0; stq a0, 8(sp) +# define SAVE_ARGS_2 SAVE_ARGS_1; stq a1, 16(sp) +# define SAVE_ARGS_3 SAVE_ARGS_2; stq a2, 24(sp) +# define SAVE_ARGS_4 SAVE_ARGS_3; stq a3, 32(sp) +# define SAVE_ARGS_5 SAVE_ARGS_4; stq a4, 40(sp) +# define SAVE_ARGS_6 SAVE_ARGS_5; stq a5, 48(sp) + +# define LOAD_ARGS_0 /* Nothing. */ +# define LOAD_ARGS_1 LOAD_ARGS_0; ldq a0, 8(sp) +# define LOAD_ARGS_2 LOAD_ARGS_1; ldq a1, 16(sp) +# define LOAD_ARGS_3 LOAD_ARGS_2; ldq a2, 24(sp) +# define LOAD_ARGS_4 LOAD_ARGS_3; ldq a3, 32(sp) +# define LOAD_ARGS_5 LOAD_ARGS_4; ldq a4, 40(sp) +# define LOAD_ARGS_6 LOAD_ARGS_5; ldq a5, 48(sp) + +# ifdef IS_IN_libpthread +# define __local_enable_asynccancel __pthread_enable_asynccancel +# define __local_disable_asynccancel __pthread_disable_asynccancel +# define __local_multiple_threads __pthread_multiple_threads +# else +# define __local_enable_asynccancel __libc_enable_asynccancel +# define __local_disable_asynccancel __libc_disable_asynccancel +# define __local_multiple_threads __libc_multiple_threads +# endif + +# ifdef PIC +# define CENABLE bsr ra, __local_enable_asynccancel !samegp +# define CDISABLE bsr ra, __local_disable_asynccancel !samegp +# else +# define CENABLE jsr ra, __local_enable_asynccancel; ldgp ra, 0(gp) +# define CDISABLE jsr ra, __local_disable_asynccancel; ldgp ra, 0(gp) +# endif + +# ifndef __ASSEMBLER__ +extern int __local_multiple_threads attribute_hidden; +# define SINGLE_THREAD_P \ + __builtin_expect (__local_multiple_threads == 0, 1) +# elif defined(PIC) +# define SINGLE_THREAD_P(reg) ldl reg, __local_multiple_threads(gp) !gprel +# else +# define SINGLE_THREAD_P(reg) \ + ldah reg, __local_multiple_threads(gp) !gprelhigh; \ + ldl reg, __local_multiple_threads(reg) !gprellow +# endif + +#elif !defined __ASSEMBLER__ + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) + +#endif |