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authorDavid McCullough <davidm@snapgear.com>2002-01-17 04:12:12 +0000
committerDavid McCullough <davidm@snapgear.com>2002-01-17 04:12:12 +0000
commit36b818352e14ef19f3da291761a06bfb37e06c09 (patch)
tree9477a4c86d6060d6c30605a436d89fb1d3a336ba /libc/sysdeps/linux/sh/brk.c
parent9557844c482a3a2302df69e06677178247634d56 (diff)
Add sbrk and friends
Fix bug in setjmp (jmpbuf changed size)
Diffstat (limited to 'libc/sysdeps/linux/sh/brk.c')
-rw-r--r--libc/sysdeps/linux/sh/brk.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sh/brk.c b/libc/sysdeps/linux/sh/brk.c
new file mode 100644
index 000000000..c7943c1fd
--- /dev/null
+++ b/libc/sysdeps/linux/sh/brk.c
@@ -0,0 +1,22 @@
+/* From libc-5.3.12 */
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <errno.h>
+
+extern void * ___brk_addr;
+
+extern int __init_brk ();
+extern void *_brk(void *ptr);
+
+int brk(void * end_data_seg)
+{
+ if (__init_brk () == 0)
+ {
+ ___brk_addr = _brk(end_data_seg);
+ if (___brk_addr == end_data_seg)
+ return 0;
+ __set_errno(ENOMEM);
+ }
+ return -1;
+}