[MIPS] Ignoring 4th parameter in a3 for pread64 system calls on MIPS.

Similar to ARM, MIPS also requires 64-bit parameters to be passed in even-odd
register pairs.  For pread64, MIPS ignores 4th argument and looks on stack for
it.  Issue discovered in NaCl development for MIPS.

Committed on behalf of petarj@mips.com.

BUG= http://code.google.com/p/nativeclient/issues/detail?id=2275
TEST= used by nacl_helper_bootstrap

Review URL: https://chromiumcodereview.appspot.com/10910222

git-svn-id: http://linux-syscall-support.googlecode.com/svn/trunk/lss@13 829466d3-f3f5-3ae4-62ad-de35cf9bba21
1 file changed
tree: 1840854349ef9c75a8608ec326080ac8a6af9b1b
  1. linux_syscall_support.h