[MIPS] Add Real Time Signal Functions and minor bug fixes.

    1. Added:
        rt_sigaction(),
        rt_sigprocmask(), and
        rt_sigtimedwait portable syscalls.

    2. Fixed a bug in signal.c.

    3. Added a new pair of functions to map siginfo_t
       between portable and native formats.

    4. Fixed LTP rt_siqqueueinfo01 and siqqueue() test failures.

    5. Using these new siginfo_t mapping functions in functions
       that were previously doing this functionality internally:
          a. mips_sigaction_handler()
          b. __rt_sigtimedwait_portable()

    6. Modified rt_sigqueueinfo_portable():
      a. Added a call to this new siginfo_pton() function.
      b. Fixed native_sig calculation; it was converting
         with the wrong function (ntop instead of pton).

    7. Added the Thread Group Flavor of Real Time version of
       sigqueueinfo().

    8. Added and tested the sigqueue() implementation thought it's
       not supported by Android yet. Using a LTP library function
       to implement it via syscall for now.  Android has a
       sysconf() regression that will be addressed in a separate
       commit.

    9. Modified some of the variable names in:

          __rt_sigtimedwait_portable()

       to make it easier/faster to read.

    10. Fixed a SIGTERM --> SIGTERM_PORTABLE mapping bug.

Most LTP Posix sigqueue() tests and the rt_sigqueueinfo01() test
now pass with this commit.

Change-Id: I5a2c28c4f5863cc013fe0c7fce819fa5b7a6dcc7
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Douglas Leung <douglas.leung@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>

0 files changed, 0 insertions, 0 deletions