diff options
Diffstat (limited to 'libbb/module_syscalls.c')
| -rw-r--r-- | libbb/module_syscalls.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/libbb/module_syscalls.c b/libbb/module_syscalls.c new file mode 100644 index 0000000..d0c1a36 --- /dev/null +++ b/libbb/module_syscalls.c @@ -0,0 +1,88 @@ +/* vi: set sw=4 ts=4: */ +/* + * some system calls possibly missing from libc + * + * Copyright (C) 1999,2000,2001 by Lineo, inc. + * Written by Erik Andersen <andersen@lineo.com>, <andersee@debian.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <stdio.h> +#include <errno.h> +#include <unistd.h> +/* Kernel headers before 2.1.mumble need this on the Alpha to get + _syscall* defined. */ +#define __LIBRARY__ +#include <sys/syscall.h> +#include <asm/unistd.h> +#include "libbb.h" + +#define __NR_new_sys_init_module __NR_init_module +_syscall2(int, new_sys_init_module, const char *, name, + const struct new_module *, info); + +#define __NR_old_sys_init_module __NR_init_module +_syscall5(int, old_sys_init_module, const char *, name, char *, code, + unsigned, codesize, struct old_mod_routines *, routines, + struct old_symbol_table *, symtab); + +#if __GNU_LIBRARY__ < 5 +/* These syscalls are not included as part of libc5 */ +_syscall1(int, delete_module, const char *, name); +_syscall1(int, get_kernel_syms, struct old_kernel_sym *, ks); + +#ifndef __NR_query_module +#warning This kernel does not support the query_module syscall +#warning -> The query_module system call is being stubbed out... +int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret) +{ + fprintf(stderr, "\n\nTo make this application work, you will need to recompile\n"); + fprintf(stderr, "with a kernel supporting the query_module system call. -Erik\n\n"); + errno=ENOSYS; + return -1; +} +#else +_syscall5(int, query_module, const char *, name, int, which, + void *, buf, size_t, bufsize, size_t*, ret); +#endif + +/* Jump through hoops to fixup error return codes */ +#define __NR__create_module __NR_create_module +static inline _syscall2(long, _create_module, const char *, name, size_t, size) +unsigned long create_module(const char *name, size_t size) +{ + long ret = _create_module(name, size); + + if (ret == -1 && errno > 125) { + ret = -errno; + errno = 0; + } + return ret; +} + +#endif /* __GNU_LIBRARY__ < 5 */ + + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ + |