about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/m68k/brk.c
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/m68k/brk.c')
-rw-r--r--sysdeps/unix/sysv/linux/m68k/brk.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/m68k/brk.c b/sysdeps/unix/sysv/linux/m68k/brk.c
new file mode 100644
index 0000000000..6b2c92852d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/m68k/brk.c
@@ -0,0 +1,48 @@
+/* brk system call for Linux/m68k.
+   Copyright (C) 1996, 1997, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <errno.h>
+#include <unistd.h>
+#include <sysdep.h>
+
+void *__curbrk = 0;
+
+/* Old braindamage in GCC's crtstuff.c requires this symbol in an attempt
+   to work around different old braindamage in the old Linux/x86 ELF
+   dynamic linker.  Sigh.  */
+weak_alias (__curbrk, ___brk_addr)
+
+int
+__brk (void *addr)
+{
+  void *newbrk;
+
+  INTERNAL_SYSCALL_DECL (err);
+  newbrk = (void *) INTERNAL_SYSCALL (brk, err, 1, addr);
+  __curbrk = newbrk;
+
+  if (newbrk < addr)
+    {
+      __set_errno (ENOMEM);
+      return -1;
+    }
+
+  return 0;
+}
+weak_alias (__brk, brk)