/*
* 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>
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.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
#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>
-#ifndef __UCLIBC__
-#include <asm/unistd.h>
-#endif
#include "libbb.h"
+/* uClibc always supplies (possibly ENOSYS) versions of these functions. */
+#ifndef __UCLIBC__
+
+/* These syscalls are not included in very old glibc versions */
+int delete_module(const char *name)
+{
+#ifndef __NR_delete_module
+#warning This kernel does not support the delete_module syscall
+#warning -> The delete_module system call is being stubbed out...
+ errno=ENOSYS;
+ return -1;
+#else
+ return(syscall(__NR_delete_module, name));
+#endif
+}
-#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, __ptr_t, ks);
+int get_kernel_syms(__ptr_t ks)
+{
+#ifndef __NR_get_kernel_syms
+#warning This kernel does not support the get_kernel_syms syscall
+#warning -> The get_kernel_syms system call is being stubbed out...
+ errno=ENOSYS;
+ return -1;
+#else
+ return(syscall(__NR_get_kernel_syms, ks));
+#endif
+}
/* 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. Its good at that. */
-_syscall5(int, init_module, void *, first, void *, second, void *, third,
- void *, fourth, void *, fifth);
+int init_module(void *first, void *second, void *third, void *fourth, void *fifth)
+{
+#ifndef __NR_init_module
+#warning This kernel does not support the init_module syscall
+#warning -> The init_module system call is being stubbed out...
+ errno=ENOSYS;
+ return -1;
+#else
+ return(syscall(__NR_init_module, first, second, third, fourth, fifth));
+#endif
+}
+int query_module(const char *name, int which, void *buf, size_t bufsize, size_t *ret)
+{
#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;
-}
+ bb_error_msg("\n\nTo make this application work, you will need to recompile\n"
+ "BusyBox with a kernel supporting the query_module system call.\n");
+ errno=ENOSYS;
+ return -1;
#else
-_syscall5(int, query_module, const char *, name, int, which,
- void *, buf, size_t, bufsize, size_t*, ret);
+ return(syscall(__NR_query_module, name, which, buf, bufsize, 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);
+#ifndef __NR_create_module
+#warning This kernel does not support the create_module syscall
+#warning -> The create_module system call is being stubbed out...
+ errno=ENOSYS;
+ return -1;
+#else
+ long ret = syscall(__NR_create_module, name, size);
- if (ret == -1 && errno > 125) {
- ret = -errno;
- errno = 0;
- }
- return ret;
+ if (ret == -1 && errno > 125) {
+ ret = -errno;
+ errno = 0;
+ }
+ return ret;
+#endif
}
-#endif /* __GNU_LIBRARY__ < 5 */
+#endif /* __UCLIBC__ */
/* END CODE */
/*