The portable (ARM) jmp_buf and sigjmp_buf structures are smaller than the native
(MIPS) structures so it is not safe to simply call the standard bionic routines.
Luckily there is a lot of redundant space in the standard MIPS structures
and it is possible to save all of the needed registers in the area provided by the
ARM application.
Change-Id: I694a90516cdf96d581863e833776092830afe3cc
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
sflags() returns open() flags via a pointer passed to sflags().
Change-Id: I854dc4302bf09318e97eb3129a8debf98dbe8735
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
Improved Logging, tweaked func names, fixed double mappings
of mips_command.
While debugging the LTP fcntl07* set of failures I modified
a few ALOGV() calls to make logging more helpful in
fcntl_cmd_pton().
Change-Id: Idc9a7c8dd27883dff1e555769d6a8e331f4fdeb9
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
Both MIPS and ARM use signals 32 to 64 for real-time signals.
ARM signals 32 to 64 can't be masked due to the signal
mask being limited to 32 bits. MIPS signals 32 to 64 can be
masked, and Lib-Portable correctly supports this feature.
Fixes LTP tests rt_sigaction01 and ptrace05.
Fixed a few signal problems; Ex last Real Time Signal
1. The signal handler for signal number 64, the last real
time signal, wasn't being intercepted. Now catching
signal number 64.
2. sigaction() to only change *oldact when return
value is zero.
3. Fixed rt_sigqueue_portable() to set errno when
returning a -1.
4. Fixed a few cases where signal 0 was being added
to the table of signal handlers for signal remapping.
Harmless but a bit silly.
Change-Id: I1a71113d7ce4b60f3a587dae4e243dc88dd6d6bc
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
Specifically these functions are now supported:
signalfd4(), eventfd(), timerfd_create(),
pipe(), and inotify_init1()
Modified syscall_portable() to call signalfd4_portable(),
eventfd_portable(), eventfd2_portable(), and timerfd_create().
These system calls enable the read system calls to access
kernel data structures.
The signalfd4() enables read to return a signalfd_siginfo structure
which have the signal number and errno mapped until an execve().
This is similar to the maintaining a table of signal handlers to
map the signal numbers done earlier. This mapping is extended to
the process after an execve() by passing the final set of mapped
file descriptors via a pair of environment variables.
Disabling signal and file descriptor read mapping in parent
if the child would break the mapping algorithms.
This code passes at least all of the non-POSIX LTP tests,
including an updated LTP signalfd4 test that posts SIGNALS
and uses this read() mechanism to get signal info.
inotify_init1 is similar to signalfd(), timerfd() and other
filefd functions which map read() calls. Unlike signalfd(), and
similar to timerfd(), the reads don't appear to need to be mapped.
The members of the inotify_event structure appear to be generic.
The mask bits like IN_MOVE_FROM and IN_MOVE_TO are defined in
generic files. The LTP test in testcases/kernel/syscalls/inotify
test for the inotify_event structure being inotify_event structure
being read and does seem to check it contents being correct.
Change-Id: I3f2dcd4e33437ac953cd9f67f56dccc6ec6e5e6f
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
Just mapping struct addrinfo socktype member; everything else is
identical in ARM vs MIPS cpp comparison.
Lots of tests in getaddrinfo_01 fail on Android, but test 9 and 20
were breaking with lib-portable only. This fix corrects that
difference in the test results.
Change-Id: I93c7948cc206ec60b867844857e3e19350c5f5e9
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
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>
Unifying around the <class>_ntop() style;
changing ntop_*() and pton_* to *_ntop() and *_pton().
Also added portable versions of strerror() and strerror_r()
while updating the errno.c file.
Change-Id: I2a0f40963f293ef9387b0dbcb3426276d301a17c
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
File poll.c had a wide line and the reason for the asymmetric
mapping of the event flags wasn't obvious on my reviewing
this code. Seemed to justify adding some clarification.
Both signal.c and socket.c were using lengthy function names
for Portable <--> Native mappings. Switch to the newer *_ntop()
style in wide files and made the ALOGV() messages more useful.
Also changed mapping of portable SIGSTKFLT to native SIGEMT
while editing a wide line in the signal.c file. MIPS has no
SIGSTKFLT signal, nor ARM a signal SIGEMT. Using SIGEMT as a
proxy for SIGSTKFLT_PORTABLE for Lib-Portable applications.
This makes the signal mapping reversible during signal handling.
Fixed ALOGV() Entry/Exit brackets to match.
Change-Id: I9a91992e67ab24322db608424bf69c47fad8e18d
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
Also fixed syscall.c to use curly brackets in case
statements to be more like bionic.
Change-Id: I20ffab9a474a2132b47fb4e765966c956aab2aff
Signed-off-by: Pete Delaney <piet.delaney@imgtec.com>
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Paul Lind <paul.lind@imgtec.com>
Add a larger number of sample images so it's easier to see the result
of the various bitmap optimizations.
Change-Id: Ieef04a1cd4dc6cf1fa165baa0a6f8d4750b58d71
