From d4d02ff6bdd4003ca80294f31d9ddd5e5585c199 Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 5 Apr 2001 07:34:20 +0000 Subject: Get the full set of module creating syscalls in place. -Erik --- libc/sysdeps/linux/common/create_module.c | 64 +++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 libc/sysdeps/linux/common/create_module.c (limited to 'libc/sysdeps/linux/common/create_module.c') diff --git a/libc/sysdeps/linux/common/create_module.c b/libc/sysdeps/linux/common/create_module.c new file mode 100644 index 000000000..1cacaefaf --- /dev/null +++ b/libc/sysdeps/linux/common/create_module.c @@ -0,0 +1,64 @@ +/* vi: set sw=4 ts=4: */ +/* + * Syscalls for uClibc + * + * Copyright (C) 2000 by Lineo, inc. Written by Erik Andersen + * , + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU Library 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 Library General Public License + * for more details. + * + * You should have received a copy of the GNU Library 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 +#include +#include +#include + + +//#define __NR_create_module 127 + +#if defined(__i386__) || defined(__m68k__) || defined(__arm__) +#define __NR___create_module __NR_create_module +_syscall2(long, __create_module, const char *, name, size_t, size); +/* By checking the value of errno, we know if we have been fooled + * by the syscall2 macro making a very high address look like a + * negaitive, so we we fix it up here. */ +unsigned long create_module(const char *name, size_t size) +{ + long ret = __create_module(name, size); + + /* Jump through hoops to fixup error return codes */ + if (ret == -1 && errno > 125) { + ret = -errno; + errno = 0; + } + return ret; +} +#elif defined(__alpha__) +#define __NR___create_module __NR_create_module +/* Alpha doesn't have the same problem, exactly, but a bug in older + kernels fails to clear the error flag. Clear it here explicitly. */ +_syscall4(unsigned long, __create_module, const char *, name, + size_t, size, size_t, dummy, size_t, err); +unsigned long create_module(const char *name, size_t size) +{ + return __create_module(name, size, 0, 0); +} +#else +/* Sparc, MIPS, etc don't mistake return values for errors. */ +_syscall2(unsigned long, create_module, const char *, name, size_t, size) +#endif + + -- cgit v1.2.3