sreadahead: adding readahead system call into bionic libc
Add bionic libc to support readahead system call.
This is needed to enable sreadahead to work.
Change-Id: I3856e1a3833db82e6cf42fd34af7631bd40cc723
Author: Winson Yung <winson.w.yung@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
diff --git a/libc/arch-x86/syscalls/readahead.S b/libc/arch-x86/syscalls/readahead.S
new file mode 100644
index 0000000..b89314f
--- /dev/null
+++ b/libc/arch-x86/syscalls/readahead.S
@@ -0,0 +1,32 @@
+/* autogenerated by gensyscalls.py */
+#include <sys/linux-syscalls.h>
+
+ .text
+ .type readahead, @function
+ .globl readahead
+ .align 4
+
+readahead:
+ pushl %ebx
+ pushl %ecx
+ pushl %edx
+ pushl %esi
+ mov 20(%esp), %ebx
+ mov 24(%esp), %ecx
+ mov 28(%esp), %edx
+ mov 32(%esp), %esi
+ movl $__NR_readahead, %eax
+ int $0x80
+ cmpl $-129, %eax
+ jb 1f
+ negl %eax
+ pushl %eax
+ call __set_errno
+ addl $4, %esp
+ orl $-1, %eax
+1:
+ popl %esi
+ popl %edx
+ popl %ecx
+ popl %ebx
+ ret