This doesn't address `struct sigaction` and `sigaction`. That will
come later.
Bug: http://b/72493232
Test: ran tests
Change-Id: I4134346757ce3a4dac6feae413361cec16223386
The main motivation here is that the sigprocmask in pthread_exit wasn't
actually blocking the real-time signals, and debuggerd (amongst other
things) is using them. I wasn't able to write a test that actually won
that race but I did write an equivalent one for posix_spawn.
This also fixes all the uses of sigset_t where the sigset_t isn't
exposed to the outside (which we can't easily fix because it would be
an ABI change).
Bug: https://issuetracker.google.com/72291624
Test: ran tests
Change-Id: Ib6eebebc5a7b0150079f1cb79593247917dcf750
Upstream's killpg is diverging further from glibc behavior, so let's just fork.
Bug: N/A
Test: ran tests
Change-Id: I70a3543018bc0a5c0bbf019ac527043b90568fda
Implement the legacy SysV signal handling functions sighold(),
sigignore(), sigpause(), sigrelse(), and sigset() in terms of the newer
POSIX signal APIs. As of POSIX 2013 the SysV signal APIs are deprecated
but still required.
Change-Id: I4ca40e3d706605a7d1a30dc76c78b2b24586387d
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Previously, the implementation of setjmp on x86_64 claimed that
sigprocmask would write to two longs' worth of bytes.
Bug: http://b/27856501
Change-Id: I9f32b40ac773a0cd91a976aace5bfba6e67fb0f8
We still use GCC to build the bionic unit tests into CTS, and it emits a
false positive -Wmissing-field-initializers warning for the C++11 aggregate
initialization syntax `Foo foo = {}`.
Bug: http://b/27656293
Change-Id: I016d8dae6d6cd28afe4bc19250c2a8fba908f8e6
The previous code assumed that returning would be sufficient to rethrow
signals like SIGSEGV. This is not true, for example, in the case where a
SIGSEGV is sent via kill(2). We were previously only sending the signal
to ourselves in some cases, because using kill(2) would lose information
in the siginfo_t argument. Use rt_tgsigqueueinfo(2) instead to preserve
its contents.
Bug: http://b/27367422
Change-Id: I1be822818d5905461979c7e12dc4e9c25049273b
__SIGRTMIN will continue to tell the truth. This matches glibc's
behavior (as evidenced by the fact that we don't need a special case
in the strsignal test now).
Change-Id: I1abe1681d516577afa8cd39c837ef12467f68dd2
We don't need quite so much duplication because we already have a way
to get the signal number from its name, and that already copes with the
fact that the mips/mips64 numbers are different from everyone else's.
Also remove sys_signame from LP64. glibc doesn't have this BSD-ism.
Change-Id: I6dc411a3d73589383c85d3b07d9d648311492a10
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
handler.
After this, running bionic-unit-tests-glibc passes for all tests.
Bug: 11389824
Change-Id: Ib304eae4164115835a54991dfdca5821ecc3db5e
Also clean up <signal.h> and revert the hacks that were necessary
for 64-bit in linker/debugger.cpp until now.
Change-Id: I3b0554ca8a49ee1c97cda086ce2c1954ebc11892
We could special-case raise(3) in non-threaded programs, but the more
conservative course is to make pthread_kill(3) work in signal handlers
at the cost of a race shared by other C libraries.
Change-Id: I59fb23d03bdabf403435e731704b33acdf3e0234
Spotted while running the tests on MIPS, where sigset_t is
actually large enough. The bits in sigset_t are used such that
signal 1 is represented by bit 0, so the range of signals is
actually [1, 8*sizeof(sigset_t)]; it seems clearer to reword
the code in terms of valid bit offsets [0, 8*sizeof(sigset_t)),
which leads to the usual bounds checking idiom.
Change-Id: Id899c288e15ff71c85dd2fd33c47f8e97aa1956f
raise() should use pthread_kill() in a pthreads environment.
For bionic this means it should always be used.
Change-Id: Ic679272b664d2b8a7068b628fb83a9f7395c441f
You could argue that this is hurting people smart enough to have manually
allocated a large-enough sigset_t, but those people are smart enough to
implement their own sigset functions too.
I wonder whether our least unpleasant way out of our self-inflicted 32-bit
cesspool is to have equivalents of _FILE_OFFSET_BITS such as _SIGSET_T_BITS,
so calling code could opt in? You'd have to be careful passing sigset_t
arguments between code compiled with different options.
Bug: 5828899
Change-Id: I0ae60ee8544835b069a2b20568f38ec142e0737b
