Some further syscall adjustments. Split the module syscalls out of

insmod and into libbb. Only enable them for libc5.  glibc and
uClibc don't need them.
 -Erik

1 files changed, 88 insertions, 0 deletions

diff --git a/libbb/module_syscalls.c b/libbb/module_syscalls.c
new file mode 100644
index 000000000..d0c1a36d4
--- /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:
+*/
+