diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/hppa/sysdep.c')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/hppa/sysdep.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sysdep.c b/ports/sysdeps/unix/sysv/linux/hppa/sysdep.c new file mode 100644 index 0000000000..a1bfd5ef60 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/hppa/sysdep.c @@ -0,0 +1,79 @@ +/* Copyright (C) 1997, 1998, 2001, 2003, 2007 + 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, see + <http://www.gnu.org/licenses/>. */ + +#include <stdarg.h> +#include <sysdep.h> +#include <errno.h> + +extern int __syscall_error(int err_no); +extern long int syscall (long int __sysno, ...) __THROW; + +/* This routine is jumped to by all the syscall handlers, to stash + an error number into errno. */ +int +__syscall_error (int err_no) +{ + __set_errno (err_no); + return -1; +} + + +/* HPPA implements syscall() in 'C'; the assembler version would + typically be in syscall.S. Also note that we have INLINE_SYSCALL, + INTERNAL_SYSCALL, and all the generated pure assembly syscall wrappers. + How often the function is used is unknown. */ + +long int +syscall (long int __sysno, ...) +{ + /* FIXME: Keep this matching INLINE_SYSCALL for hppa */ + va_list args; + long int arg0, arg1, arg2, arg3, arg4, arg5; + long int __sys_res; + + /* Load varargs */ + va_start (args, __sysno); + arg0 = va_arg (args, long int); + arg1 = va_arg (args, long int); + arg2 = va_arg (args, long int); + arg3 = va_arg (args, long int); + arg4 = va_arg (args, long int); + arg5 = va_arg (args, long int); + va_end (args); + + { + register unsigned long int __res asm("r28"); + PIC_REG_DEF + LOAD_ARGS_6 (arg0, arg1, arg2, arg3, arg4, arg5) + asm volatile (SAVE_ASM_PIC + " ble 0x100(%%sr2, %%r0) \n" + " copy %1, %%r20 \n" + LOAD_ASM_PIC + : "=r" (__res) + : "r" (__sysno) PIC_REG_USE ASM_ARGS_6 + : "memory", CALL_CLOB_REGS CLOB_ARGS_6); + __sys_res = __res; + } + if ((unsigned long int) __sys_res >= (unsigned long int) -4095) + { + __set_errno (-__sys_res); + __sys_res = -1; + } + return __sys_res; +} + |