diff options
-rw-r--r-- | libc/sysdeps/linux/common/Makefile | 2 | ||||
-rw-r--r-- | libc/sysdeps/linux/common/create_module.c | 64 | ||||
-rw-r--r-- | libc/sysdeps/linux/common/syscalls.c | 10 |
3 files changed, 74 insertions, 2 deletions
diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile index 8dae9d1d3..8617c0b71 100644 --- a/libc/sysdeps/linux/common/Makefile +++ b/libc/sysdeps/linux/common/Makefile @@ -27,7 +27,7 @@ LIBC=$(TOPDIR)libc.a CSRC= waitpid.c getdents.c kernel_version.c statfix.c getdnnm.c tell.c gethstnm.c \ mkfifo.c setegid.c wait.c errno.c getpagesize.c seteuid.c wait3.c setpgrp.c \ - getdtablesize.c + getdtablesize.c create_module.c COBJS=$(patsubst %.c,%.o, $(CSRC)) MSRC=syscalls.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 + * <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 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 <errno.h> +#include <features.h> +#include <sys/types.h> +#include <sys/syscall.h> + + +//#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 + + diff --git a/libc/sysdeps/linux/common/syscalls.c b/libc/sysdeps/linux/common/syscalls.c index 7051c56ef..ca0b3a317 100644 --- a/libc/sysdeps/linux/common/syscalls.c +++ b/libc/sysdeps/linux/common/syscalls.c @@ -891,13 +891,21 @@ _syscall3(int, sigprocmask, int, how, const sigset_t *, set, sigset_t *, #endif //#define __NR_create_module 127 +//See sysdeps/linux/commom/create_module.c //#define __NR_init_module 128 +#ifdef L_init_module +/* This may have 5 arguments (for old 2.0 kernels) or 2 arguments + * (for 2.2 and 2.4 kernels). Use the greatest common denominator, + * and let the kernel cope with whatever it gets. It's good at that. */ +_syscall5(int, init_module, void *, first, void *, second, void *, third, + void *, fourth, void *, fifth); +#endif //#define __NR_delete_module 129 #ifdef L_delete_module # ifdef __NR_delete_module - _syscall1(int, delete_module, const char *, name) + _syscall1(int, delete_module, const char *, name); # endif #endif |