1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/i386/brk.S b/sysdeps/unix/sysv/linux/i386/brk.S
new file mode 100644
index 0000000000..ef2f55db97
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/brk.S
@@ -0,0 +1,60 @@
+/* Copyright (C) 1991, 1992, 1993, 1995 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 Library General Public License as
+published by the Free Software Foundation; either version 2 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
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+.data
+.globl C_SYMBOL_NAME(__curbrk)
+C_LABEL(__curbrk)
+#ifdef PIC
+	.long 0
+#else
+# ifdef HAVE_GNU_LD
+	.long C_SYMBOL_NAME(_end)
+# else
+	.long C_SYMBOL_NAME(end)
+# endif
+#endif
+
+.text
+.globl C_SYMBOL_NAME(syscall_error)
+
+ENTRY (__brk)
+	movl %ebx, %edx
+	movl $SYS_ify(brk), %eax
+	movl 4(%esp), %ebx
+	int $0x80
+	movl %edx, %ebx
+
+	cmpl 4(%esp), %eax
+	jne JUMPTARGET(syscall_error)
+
+#ifdef PIC
+	/* Standard PIC nonsense to store into `__curbrk' through the GOT.  */
+	call here
+here:	popl %ecx
+	addl $_GLOBAL_OFFSET_TABLE_+[.-here], %ecx
+	movl C_SYMBOL_NAME(__curbrk@GOT)(%ecx), %ecx
+	movl %eax, (%ecx)
+#else
+	movl %eax, C_SYMBOL_NAME(__curbrk)
+#endif
+	xorl %eax, %eax
+	ret
+
+weak_alias (__brk, brk)