diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h new file mode 100644 index 0000000000..ed9f9420e7 --- /dev/null +++ b/nptl/sysdeps/unix/sysv/linux/i386/sysdep-cancel.h @@ -0,0 +1,70 @@ +/* Copyright (C) 2002 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> + +#if !defined NOT_IN_libc || defined IS_IN_libpthread + +#undef PSEUDO +#define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + cmpl $0, %gs:MULTIPLE_THREADS_OFFSET; \ + jne L(pseudo_cancel); \ + DO_CALL (syscall_name, args); \ + cmpl $-4095, %eax; \ + jae SYSCALL_ERROR_LABEL; \ + ret; \ + L(pseudo_cancel): \ + call __libc_enable_asynccancel; \ + SAVE_OLDTYPE_##args \ + PUSHARGS_##args \ + DOCARGS_##args \ + movl $SYS_ify (syscall_name), %eax; \ + int $0x80 \ + POPARGS_##args; \ + POPCARGS_##args \ + cmpl $-4095, %eax; \ + jae SYSCALL_ERROR_LABEL; \ + L(pseudo_end): + +#define SAVE_OLDTYPE_0 movl %eax, %ecx; +#define SAVE_OLDTYPE_1 SAVE_OLDTYPE_0 +#define SAVE_OLDTYPE_2 pushl %eax; +#define SAVE_OLDTYPE_3 SAVE_OLDTYPE_2 +#define SAVE_OLDTYPE_4 SAVE_OLDTYPE_2 +#define SAVE_OLDTYPE_5 SAVE_OLDTYPE_2 + +#define DOCARGS_0 DOARGS_0 +#define DOCARGS_1 DOARGS_1 +#define DOCARGS_2 _DOARGS_2 (12) +#define DOCARGS_3 _DOARGS_3 (20) +#define DOCARGS_4 _DOARGS_4 (28) +#define DOCARGS_5 _DOARGS_5 (36) + +#define DISABLE call __libc_disable_asynccancel +#define POPCARGS_0 pushl %eax; movl %ecx, %eax; DISABLE; popl %eax; +#define POPCARGS_1 POPCARGS_0 +#define POPCARGS_2 xchgl (%esp), %eax; DISABLE; popl %eax; +#define POPCARGS_3 POPCARGS_2 +#define POPCARGS_4 POPCARGS_2 +#define POPCARGS_5 POPCARGS_2 + +#endif |