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Now that send might be implemented calling sendto syscall on Linux,
I am seeing some issue in some kernel configurations where tst-cancel4
sendto do not block as expected.
The socket used to force the syscall blocking is used with default
system configuration for buffer sending size, which might not be
suffice to force blocking. This patch fixes it by explicit setting
buffer socket lower than the buffer size used. It also enables sendto
cancellation tests to work in both ways (since internally send is
implemented routing to sendto on Linux kernel).
The patch also removes unrequired make rules on some archictures
for send/recv. The generic nptl Makefile already set the compiler flags
required on some architectures for correct unwinding and libc object
are not strictly required to support unwind (since pthread_cancel
requires linking against libpthread).
Checked on aarch64-linux-gnu and x86_64-linux-gnu. I also did a
sniff test with tst-cancel{4,5} on a simulated mips64-linux-gnu.
* nptl/tst-cancel4-common.h (set_socket_buffer): New function.
* nptl/tst-cancel4-common.c (do_test): Call set_socket_buffer
for socketpair endpoint.
* nptl/tst-cancel4.c (tf_send): Call set_socket_buffer and use
WRITE_BUFFER_SIZE as buffer size for sending socket.
(tf_sendto): Use SOCK_STREAM instead of SOCK_DGRAM and fix an
issue on system where send is implemented with sendto syscall.
* sysdeps/unix/sysv/linux/mips/mips64/Makefile [$(subdir) = socket]
(CFLAGS-recv.c, CFLAGS-send.c): Remove rules.
[$(subdir) = nptl] (CFLAGS-recv.c, CFLAGS-send.c): Likewise.
* sysdeps/unix/sysv/linux/riscv/rv64/Makefile: Remove file.
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* All files with FSF copyright notices: Update copyright dates
using scripts/update-copyrights.
* locale/programs/charmap-kw.h: Regenerated.
* locale/programs/locfile-kw.h: Likewise.
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Checked on x86_64-linux-gnu.
* nptl/tst-cancel4-common.c: Use libsupport.
* nptl/tst-cancel4-common.h: Likewise.
* nptl/tst-cancel4.c (tf_read): Likewise.
(tf_readv): Likewise.
(tf_write): Likewise.
(tf_writev): Likewise.
(tf_sleep): Likewise.
(tf_usleep): Likewise.
(tf_nanosleep): Likewise.
(tf_select): Likewise.
(tf_pselect): Likewise.
(tf_poll): Likewise.
(tf_ppoll): Likewise.
(tf_wait): Likewise.
(tf_waitpid): Likewise.
(tf_waitid): Likewise.
(tf_sigpause): Likewise.
(tf_sigsuspend): Likewise.
(tf_sigwait): Likewise.
(tf_sigwaitinfo): Likewise.
(tf_sigtimedwait): Likewise.
(tf_pause): Likewise.
(tf_accept): Likewise.
(tf_send): Likewise.
(tf_recv): Likewise.
(tf_recvfrom): Likewise.
(tf_recvmsg): Likewise.
(tf_open): Likewise.
(tf_close): Likewise.
(tf_pread): Likewise.
(tf_pwrite): Likewise.
(tf_preadv): Likewise.
(tf_pwritev): Likewise.
(tf_fsync): Likewise.
(tf_fdatasync): Likewise.
(tf_msync): Likewise.
(tf_sendto): Likewise.
(tf_sendmsg): Likewise.
(tf_creat): Likewise.
(tf_connect): Likewise.
(tf_tcdrain): Likewise.
(tf_msgrcv): Likewise.
(tf_msgsnd): Likewise.
* nptl/tst-cancel4_1.c (tf_sendmmsg): Likewise.
* nptl/tst-cancel4_2.c (tf_recvmmsg): Likewise.
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This patch adds early cancel test for open syscall through a FIFO
(thus makign subsequent call to open block until the other end is
also opened).
It also cleanup the sigpause tests by using sigpause along with
SIGINT instead of __xpg_sigpause and SIGCANCEL. Since the idea
is just to test the cancellation handling there is no need to expose
internal glibc implementation details to the test through pthreadP.h
inclusion.
Tested x86_64.
* nptl/tst-cancel4-common.c (do_test): Add temporary fifo creation.
* nptl/tst-cancel4-common.h (fifoname): New variable.
(fifofd): Likewise.
(cl_fifo): New function.
* nptl/tst-cancel4.c (tf_sigpause): Replace SIGCANCEL usage by
SIGINT.
(tf_open): Add early cancel test.
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This patch adds cancellation tests for both sendmmsg and recvmmsg
syscalls. Since for some system configuration (x86_64/i686 on
older kernels and non-Linux platforms), the tests are added as
two independent that report as unsupported if the syscall is not
presented.
Both new tests uses the already tst-cancel4.c code, which as moved
to a common tst-cancel4-common{.c,h} files.
Tested on x86_64 and i686.
* nptl/Makefile (test): Add tst-cancel4_1 and tst-cancel4_2.
* nptl/tst-cancel4-common.c: New file.
* nptl/tst-cancel4-common.h: Likewise.
* nptl/tst-cancel4.c: Move common definitions to
tst-cancel4-common.{c,h} file.
* nptl/tst-cancel4_1.c: New test.
* nptl/tst-cancel4_2.c: New test.
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