History log of /bionic/tests/unistd_test.cpp
Revision Date Author Comments
84d0683a824fa02dbaa6d1b56a79223804b54e80 22-Aug-2014 Elliott Hughes <enh@google.com> Fix unistd.getpid_caching_and_clone.

This test only works if you're root (strictly: if you have permission to
CLONE_NEWNS), so it's useful to us when we're doing ad hoc testing (since
that's usually done as root), but it's not useful as part of CTS or when
running the tests on the host.

Bug: 16705621
Bug: 17170200
Change-Id: Ia92c871b15f7e45fc174bb59bc95540fd00ae745
78e4f8fed2c162f8ada55180e48487ef2180cf93 28-Jul-2014 Elliott Hughes <enh@google.com> syscall(3)'s return type should be long.

This doesn't require us to change any of the syscall implementations
because (a) the LP32 ones have sizeof(int) == sizeof(long) anyway,
which is how we never noticed this bug before and (b) the LP64 ones
all use a 64-bit register for the result (and for the syscall number

Bug: https://code.google.com/p/android/issues/detail?id=73952
Bug: 16568314

(cherry picked from commit 21972b61ec0572395c5684eebc6cc7b3a4c9e3be)

Change-Id: Ifbc424be29e5650ec72a24df25dd35f24fdd5b3c
fa9e16efaf0e885f6044e725eb759ef6de10f7ef 24-Jun-2014 Elliott Hughes <enh@google.com> Fix getpid caching across a clone.

If you make clone, fork, or vfork system calls directly, you're still
on your own, but we now do the right thing for the clone wrapper.
With this implementation, children lose the getpid caching, but we've
no reason to think that that covers any significant use cases.

Bug: 15387103
Change-Id: Icfab6b63c708fea830960742ec92aeba8ce7680d
7086ad6919feb2415c6027163f5c63323bcca27c 20-Jun-2014 Elliott Hughes <enh@google.com> Cache getpid.

In practice, with this implementation we never need to make a system call.
We get the main thread's tid (which is the same as our pid) back from
the set_tid_address system call we have to make during initialization.
A new pthread will have the same pid as its parent, and a fork child's
main (and only) thread will have a pid equal to its tid, which we get for
free from the kernel before clone returns.

The only time we'd actually have to make a getpid system call now is if
we take a signal during fork and the signal handler calls getpid. (That,
or we call getpid in the dynamic linker while it's still dealing with its
own relocations and hasn't even set up the main thread yet.)

Bug: 15387103
Change-Id: I6d4718ed0a5c912fc75b5f738c49a023dbed5189
738b0cc5e95a9a650e9621603f4dd8dd16b07568 22-May-2014 Christopher Ferris <cferris@google.com> Fix overflow testing in sbrk.

Modify the overflow testing for sbrk.

Bug: 15188366

Change-Id: Ia83f85f7c1789454d872279bd41f38f1ce6b8a34
1728b2396591853345507a063ed6075dfd251706 14-May-2014 Elliott Hughes <enh@google.com> Switch to g_ for globals.

That's what the Google style guide recommends, and we're starting
to get a mix.

Change-Id: Ib0c53a890bb5deed5c679e887541a715faea91fc
063525c61d24776094d76971f33920e2a2079530 13-May-2014 Elliott Hughes <enh@google.com> Consistently use #if defined(__BIONIC__) in tests.

I've also switched some tests to be positive rather than negative,
because !defined is slightly harder to reason about and there are
only two cases: bionic and glibc.

Change-Id: I8d3ac40420ca5aead3e88c69cf293f267273c8ef
a62a28d1d9c8df7cb77e4bca19814922729b5291 07-May-2014 Elliott Hughes <enh@google.com> Add basic tests for fsync/fdatasync.

Bug: 14613980
Change-Id: Ie8002c2a1abae07295b7bdb33772764767c03d37
3d7a0d9b08ecab054b2dff8332507644de3690b0 29-Apr-2014 Elliott Hughes <enh@google.com> Switch to the OpenBSD wcsto* functions.

This replaces a partial set of non-functional functions with a complete
set of functions, all of which actually work.

This requires us to implement mbsnrtowcs and wcsnrtombs which completes
the set of what we need for libc++.

The mbsnrtowcs is basically a copy & paste of wcsnrtombs, but I'm going
to go straight to looking at using the OpenBSD UTF-8 implementation rather
than keep polishing our home-grown turd.

(This patch also opportunistically switches us over to upstream btowc,
mbrlen, and wctob, since they're all trivially expressed in terms of
other functions.)

Change-Id: I0f81443840de0f1aa73b96f0b51988976793a323
533dde4dbf87d6615952be3654fc74e5ff2e1003 26-Apr-2014 Elliott Hughes <enh@google.com> Fix brk/sbrk error checking.

Note that the kernel returns the current break on error or if the requested
break is smaller than the minimum break, or the new break. I don't know where
we got the idea that the kernel could return -1.

Also optimizes the query case.

Also hides an accidentally-exported symbol for LP64.

Change-Id: I0fd6b8b14ddf1ae82935c0c3fc610da5cc74932e
cbf6df0459f05e180d1c50b3f5b36cdd483193c6 17-Sep-2013 Grigoriy Kraynov <grigoriy.kraynov@intel.com> Tests for environment variables utility functions

This is the first patch from the new set of tests for Bionic standard functions.

Change-Id: Ie568788a24832394e597ad33f44a5c71cb33b51f
Signed-off-by: Grigoriy Kraynov <grigoriy.kraynov@intel.com>
764a99361130dceda62bbc4f8780bbf395dbc424 09-Apr-2014 Elliott Hughes <enh@google.com> Fix build: include what you use.

Change-Id: I12b2d5e434ad3ed38d4451bd470673781e6ca8fe
9f525644df99cb2f7f81a23ca23840f0a8f82275 09-Apr-2014 Elliott Hughes <enh@google.com> Implement _Exit(3).

Change-Id: Ida6ac844cc87d38c9645b197dd8188bb73e27dbe
aedb00d04eb7f0b20b6abde702ba94a46577ca68 03-Mar-2014 Elliott Hughes <enh@google.com> Switch to upstream alarm(3).

The only way the setitimer call can fail is if the unsigned number of seconds is
too large to fit in the kernel's signed number of seconds. If you schedule a
68-year alarm, glibc will fail by returning 0 and BSD will fail by returning -1.

Change-Id: Ic3721b01428f5402d99f31fd7f2ba2cc58805607
915fefb62e1beed3da26fe299a8141645733a925 18-Feb-2014 Elliott Hughes <enh@google.com> Fix x86 build.

Change-Id: Iee6e5884288f7da6c955694cfe32fecfd9c9e263
3d19a8319b9c27af8aa5cfbf495da0fe7fa62d3e 15-Feb-2014 Colin Cross <ccross@android.com> bionic: fix __set_errno for arm64 syscalls that return a 64-bit value

bionic/libc/arch-arm64/syscalls/read.S ends with:
b.hi __set_errno

If __set_errno returns int, it will set w0 to 0xFFFFFFFF, which means
x0 is 0x00000000FFFFFFFF. When interpreted as a ssize_t that is
INT_MAX, not -1.

Change __set_errno to return long, which will cause x0 to be set instead
of w0.

Change-Id: I9f9ea0f2995928d2ea240eb2ff7758ecdf0ff412
13613137bc4266656bffce464e525eb9ae6371f0 28-Oct-2013 Christopher Ferris <cferris@google.com> Fix up failing glibc tests.

There is a known bug running clone with the CLONE_VM flag, so for host
create an empty test.

Change the expected output of the stdio test for a glibc difference.

Change the pause test to use ScopedSignalHandler to setup/restore the SIGALRM

After this, running bionic-unit-tests-glibc passes for all tests.

Bug: 11389824

Change-Id: Ib304eae4164115835a54991dfdca5821ecc3db5e
11952073af22568bba0b661f7a9d4402c443a888 25-Oct-2013 Elliott Hughes <enh@google.com> Remove dependencies on obsolete __ARCH_WANT_SYSCALL_DEPRECATED system calls.

(aarch64 kernels don't have these system calls.)

Change-Id: I6f64075aa412f71520f2df71c3d69b647f91c1ca
b4f7616fd618875768b8fffc122b58bdb84a9969 20-Sep-2013 Elliott Hughes <enh@google.com> Ensure we have the off64_t variant of every function that takes an off_t.

Change-Id: Ib2eee0cf13162be3b62559b84e90c6dcf5aab1c3
428f5567be25b8090e3dd72e2d3d337c305b514e 06-Feb-2013 Elliott Hughes <enh@google.com> Remove bogus extra alignment from sbrk.

Bug: https://code.google.com/p/android/issues/detail?id=37349
Change-Id: I970c7b6be7bb7fbe6bbbe2c332f05816aeb0e09f
a55f63083fb16b2595f517a3260083e5f8cddd02 02-Jan-2013 Elliott Hughes <enh@google.com> Define _POSIX_MONOTONIC_CLOCK and implement sysconf(_SC_MONOTONIC_CLOCK).

Bug: http://code.google.com/p/android/issues/detail?id=39680
Change-Id: I11cf10a66f9d305868a725f04f581099fb88bbfc