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Diffstat (limited to 'libc/sysdeps/linux/sparc/brk.c')
-rw-r--r--libc/sysdeps/linux/sparc/brk.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc/brk.c b/libc/sysdeps/linux/sparc/brk.c
new file mode 100644
index 000000000..16a5e3942
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/brk.c
@@ -0,0 +1,49 @@
+/* brk system call for Linux/i386.
+ Copyright (C) 1995, 1996, 2000 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 <sys/syscall.h>
+
+
+/* This must be initialized data because commons can't have aliases. */
+void *___brk_addr = 0;
+
+
+int brk (void *addr)
+{
+ void *newbrk;
+
+ {
+ register void *o0 __asm__("%o0") = addr;
+ register int g1 __asm__("%g1") = 17 ;
+ __asm ("t 0x10" : "=r"(o0) : "r"(g1), "0"(o0) : "cc");
+ newbrk = o0;
+ }
+
+ ___brk_addr = newbrk;
+
+ if (newbrk < addr)
+ {
+ __set_errno (ENOMEM);
+ return -1;
+ }
+
+ return 0;
+}