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This change decouples waiting for next event from reacting to it. This
makes the control flow easier to understand, and serves as a preparation
for implementing a pull-style API for LuaJIT.
* strace.c (enum trace_event): New enum.
(trace): Split into ...
(next_event, dispatch_event): ... new functions.
(main): Use them.
This fixes generation of syscallent.i and subsequent scno.h files
on mips where syscallent.h checks macros defined in config.h.
* scno.am (syscallent.i): Add $(top_builddir)/config.h
to prerequisites, include it.
* NEWS: Mention this fix.
Reported-by: David Robins <dbrobins@i4031.net>
On sparc, unlike all other architectures, old sigaction syscall takes
a negated signal number.
* signal.c (SYS_FUNC(sigaction)) [SPARC || SPARC64]: Enhance printing
of negative signal number argument.
On alpha, struct old_sigaction.sa_flags has a 32-bit type.
On mips, only first word of old_sigaction.sa_mask is read.
On all architectures except alpha and mips that have old sigaction
syscall, struct old_sigaction has sa_restorer field that has to be
decoded.
* signal.c (struct old_sigaction) [ALPHA]: Change sa_flags type
to unsigned int, add ATTRIBUTE_PACKED.
[MIPS]: Dhrink sa_mask array to 1 element.
[!ALPHA && !MIPS]: Define sa_restorer field unconditionally.
(struct old_sigaction32): Likewise.
(decode_old_sigaction) [!current_wordsize]: Initialize sa_restorer field
from old_sigaction32.sa_restorer unconditionally.
[!ALPHA && !MIPS]: Print old_sigaction.sa_restorer if SA_RESTORER flag
is set.
* NEWS: Mention this change.
SA_ONSTACK is the standard name while its alias SA_STACK is not even
defined on many platforms.
* xlat/sigact_flags.in (SA_STACK): Rename to SA_ONSTACK.
Parsers of sigprocmask and osf_sigprocmask syscalls are different
anyway, so rename the function to match the syscall name.
* signal.c [ALPHA] (SYS_FUNC(sigprocmask)): Rename
to SYS_FUNC(osf_sigprocmask).
* linux/alpha/syscallent.h: Update sys_func.
The data collected by -fprofile-arcs during program run is saved
on program exit. When program is terminated by signal, the data
is not saved. However, libgcov provides an interface to dump
the data at runtime.
* m4/ax_code_coverage.m4 (AX_CODE_COVERAGE): Add -DENABLE_COVERAGE_GCOV
to CODE_COVERAGE_CPPFLAGS.
* strace.c [ENABLE_COVERAGE_GCOV] (__gcov_flush): New prototype.
(main) [ENABLE_COVERAGE_GCOV]: Call __gcov_flush() before raise()
and sigprocmask() calls that might cause program termination.
When traced command is terminated by a blocked signal, unblock
that signal to ensure strace termination with the same signal.
* strace.c (main): Unblock the signal raised for strace termination.
* NEWS: Mention this change.
While strace resets SIGCHLD handler to the default action so that
waitpid definitely works without losing track of children, tracees
should not inherit this change.
* strace.c (struct exec_params): Add child_sa field.
(init): When setting SIGCHLD handler to SIG_DFL, save the old handler.
(exec_or_die): Restore SIGCHLD handler if it was different from SIG_DFL
at startup.
* NEWS: Mention this change.
In interactive mode (-I2), those signals that were blocked at startup
will remain blocked for the whole period of strace execution.
* strace.c (empty_set): Rename to start_set. All users changed.
(init): Initialize start_set and blocked_set to the set of currently
blocked signals.
(startup_attach, trace): Use SIG_SETMASK instead of SIG_BLOCK.
* NEWS: Mention this change.
Old ssetmask syscall takes an argument and returns a value of type int.
Old sgetmask syscall may return an error.
* signal.c (SYS_FUNC(ssetmask)): Explicitly convert the argument
and return value to unsigned int, print it using sprint_old_sigmask_val.
(SYS_FUNC(sgetmask)): Do not print the mask in case of syserror.
* tests/sxetmask.c: New file.
* tests/gen_tests.in (sxetmask): New entry.
* tests/pure_executables.list: Add sxetmask.
* tests/.gitignore: Likewise.
* NEWS: Mention this fix.
Also do not include them into release tarballs. These files are
intended for developers who are expected to use a git repository.
* errnoent.sh: Move to maint subdirectory.
* signalent.sh: Likewise.
* syscallent.sh: Likewise.
* HACKING-scripts: Update.
* Makefile.am (EXTRA_DIST): Remove errnoent.sh, signalent.sh,
and syscallent.sh.
These files are intended for developers who are expected to use
a git repository.
* Makefile.am (EXTRA_DIST): Remove maint/ioctls_gen.sh,
maint/ioctls_hex.sh, maint/ioctls_sym.sh, and maint/print_ioctlent.c.
On some architectures old sigsuspend syscall takes the signal mask from
the 3rd argument, on some from the 1st. And, if it wasn't peculiar
enough, the signal mask is passed by value on all architectures except
mips where it's passed by reference.
* signal.c (SYS_FUNC(sigsuspend)): Take the signal mask from the last
argument.
* linux/alpha/syscallent.h (sigsuspend): Set nargs to 1.
* linux/crisv10/syscallent.h: Likewise.
* linux/mips/syscallent-o32.h: Likewise.
* linux/powerpc/syscallent.h: Likewise.
* linux/powerpc64/syscallent.h: Likewise.
* linux/sh/syscallent.h: Likewise.
* linux/sh64/syscallent.h: Likewise.
* linux/sparc/syscallent.h: Likewise.
* linux/sparc64/syscallent.h: Likewise.
* tests/sigsuspend.c: New file.
* tests/gen_tests.in (sigsuspend): New entry.
* tests/pure_executables.list: Add sigsuspend.
* tests/.gitignore: Likewise.
* NEWS: Mention this fix.
Recently added tests based on pure_executables.list are quite slow
by their nature, the one minute default timeout is no longer enough
for some of not so fast architectures.
* tests/init.sh (TIMEOUT_DURATION): Raise from 60 to 120.
Check for some architecture-specific syscalls which are not present
on most architectures.
* gen_tests.in: Add trace_question test.
* tests/trace_question.in: New file.
* tests/Makefile.am (EXTRA_DIST): Add it.
* v4l2.c: Include "xlat/v4l2_tuner_types.h", "xlat/v4l2_tuner_capabilities.h",
"xlat/v4l2_tuner_rxsubchanses.h", and "xlat/v4l2_tuner_audmodes.h".
(print_v4l2_tuner): New function. Add decoding for VIDIOC_G/S_TUNER's arg.
(v4l2_ioctl): Add new cases for decoding VIDIOC_G/S_TUNER's arg.
* xlat/v4l2_tuner_types.in: Add V4L2_TUNER_RADIO and
V4L2_TUNER_ANALOG_TV introduced by linux kernel commit
2.5.46~39^2~23^2~4.
Add V4L2_TUNER_DIGITAL_TV introduced by linux kernel
commit v2.6.11-rc4~55^2~20.
Add V4L2_TUNER_ADC and V4L2_TUNER_RF introduced by linux kernel commit
v3.15-rc1~85^2~215.
Add V4L2_TUNER_SDR introduced by linux kernel commit v4.4-rc1~118^2~17
(as the replacement of V4L2_TUNER_ADC).
* xlat/v4l2_tuner_capabilities.in: Add V4L2_TUNER_CAP_LOW,
V4L2_TUNER_CAP_NORM, V4L2_TUNER_CAP_STEREO, V4L2_TUNER_CAP_LANG2,
V4L2_TUNER_CAP_SAP, and V4L2_TUNER_CAP_LANG1 introduced by linux kernel
commit 2.5.46~39^2~23^2~4.
Add V4L2_TUNER_CAP_HWSEEK_BOUNDED and V4L2_TUNER_CAP_HWSEEK_WRAP
introduced by linux kernel commit v3.6-rc1~28^2~306.
Add V4L2_TUNER_CAP_RDS introduced by linux commit v2.6.32-rc1~679^2~189.
Add V4L2_TUNER_CAP_RDS_BLOCK_IO and V4L2_TUNER_CAP_RDS_CONTROLS
introduced by linux kernel commit v2.6.37-rc1~64^2~110.
Add V4L2_TUNER_CAP_FREQ_BANDS introduced by linux kernel commit
v3.6-rc1~28^2~46.
Add V4L2_TUNER_CAP_HWSEEK_PROG_LIM introduced by linux kernel commit
v3.6-rc1~28^2~40.
Add V4L2_TUNER_CAP_1HZ introduced by linux kernel commit
v3.15-rc1~85^2~214.
* xlat/v4l2_tuner_audmodes.in: Add V4L2_TUNER_MODE_MONO,
V4L2_TUNER_MODE_STEREO, V4L2_TUNER_MODE_LANG2, V4L2_TUNER_MODE_SAP, and
V4L2_TUNER_MODE_LANG1 introduced by linux kernel commit
2.5.46~39^2~23^2~4.
Add V4L2_TUNER_MODE_LANG1_LANG2 introduced by linux kernel commit
v2.6.17-rc1~739^2~9.
* xlat/v4l2_tuner_rxsubchanses.in: Add V4L2_TUNER_SUB_MONO,
V4L2_TUNER_SUB_STEREO, V4L2_TUNER_SUB_LANG2, V4L2_TUNER_SUB_SAP, and
V4L2_TUNER_SUB_LANG1 introduced by linux kernel commit
2.5.46~39^2~23^2~4.
Add V4L2_TUNER_SUB_RDS introduced by linux kernel commit
v2.6.32-rc1~679^2~189.
Signed-off-by: Edgar Kaziahmedov <edos@linux.com>
