| /* Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Jakub Jelinek <jakub@redhat.com>, 2002. |
| |
| 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> |
| #include <tls.h> |
| #ifndef __ASSEMBLER__ |
| # include <nptl/pthreadP.h> |
| #endif |
| |
| #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt |
| |
| # undef PSEUDO |
| # define PSEUDO(name, syscall_name, args) \ |
| .text; \ |
| .globl __syscall_error; \ |
| ENTRY(name) \ |
| ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1;\ |
| cmp %g1, 0; \ |
| bne 1f; \ |
| .type __##syscall_name##_nocancel,@function; \ |
| .globl __##syscall_name##_nocancel; \ |
| __##syscall_name##_nocancel: \ |
| mov SYS_ify(syscall_name), %g1; \ |
| ta 0x10; \ |
| bcc 8f; \ |
| mov %o7, %g1; \ |
| call __syscall_error; \ |
| mov %g1, %o7; \ |
| 8: jmpl %o7 + 8, %g0; \ |
| nop; \ |
| .size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel;\ |
| 1: save %sp, -96, %sp; \ |
| cfi_def_cfa_register(%fp); \ |
| cfi_window_save; \ |
| cfi_register(%o7, %i7); \ |
| CENABLE; \ |
| nop; \ |
| mov %o0, %l0; \ |
| COPY_ARGS_##args \ |
| mov SYS_ify(syscall_name), %g1; \ |
| ta 0x10; \ |
| bcc 1f; \ |
| mov %o0, %l1; \ |
| CDISABLE; \ |
| mov %l0, %o0; \ |
| call __syscall_error; \ |
| mov %l1, %o0; \ |
| b 2f; \ |
| mov -1, %l1; \ |
| 1: CDISABLE; \ |
| mov %l0, %o0; \ |
| 2: jmpl %i7 + 8, %g0; \ |
| restore %g0, %l1, %o0; |
| |
| |
| # ifdef IS_IN_libpthread |
| # define CENABLE call __pthread_enable_asynccancel |
| # define CDISABLE call __pthread_disable_asynccancel |
| # elif !defined NOT_IN_libc |
| # define CENABLE call __libc_enable_asynccancel |
| # define CDISABLE call __libc_disable_asynccancel |
| # elif defined IS_IN_librt |
| # define CENABLE call __librt_enable_asynccancel |
| # define CDISABLE call __librt_disable_asynccancel |
| # else |
| # error Unsupported library |
| # endif |
| |
| #define COPY_ARGS_0 /* Nothing */ |
| #define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; |
| #define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; |
| #define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; |
| #define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; |
| #define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; |
| #define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; |
| |
| # ifndef __ASSEMBLER__ |
| # define SINGLE_THREAD_P \ |
| __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ |
| header.multiple_threads) == 0, 1) |
| # else |
| # define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 |
| # endif |
| |
| #elif !defined __ASSEMBLER__ |
| |
| # define SINGLE_THREAD_P (1) |
| # define NO_CANCELLATION 1 |
| |
| #endif |
| |
| #ifndef __ASSEMBLER__ |
| # define RTLD_SINGLE_THREAD_P \ |
| __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ |
| header.multiple_threads) == 0, 1) |
| #endif |