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gcc complains:
error: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Werror=unused-result]
Also fix includes.
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If the test process is not dying after 100ms,
abort all fuse connections in the system.
This gets rid at least of simple fuse deadlocks,
let's see how well this works in all cases.
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Add syz_errno syscall which sets errno to the argument,
and add a test with different errno values.
This mostly tests the testing infrastructure itself.
Add syz_compare syscall which compare two blobs,
this can be used for testing of argument memory layout.
Implement syz_mmap and fix Makefile to allow building syz-execprog for test OS.
Useful for debugging.
Update #603
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Presumably it causes corrupted console output.
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We see some failures there, extend logging so that it's least
possible to understand what exactly call has failed.
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Currently target binaries contain support for all OS/arch combinations.
However, obviously a fuchsia target binary won't test windows.
For target binaries we need support only for a single target
(with the exception of 386/arm target in amd64/arm64 binaries).
So compile in only _the_ target into target binaries.
This reduces akaros/amd64 fuzzer binary from 33 to 7 MB
and execprog from 28 to 2 MB.
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Fix conditions for when current_time_ms/sleep_ms are used
and make them static.
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Write coverage from unfinished syscalls.
Also detect when a syscall was blocked during execution,
even if it finished. Helpful for fallback coverage.
Fixes #580
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clang-format badly mishandles this part,
moreover different versions mishandle it differently.
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This will be needed for testing of generated programs.
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1. Remove unnecessary includes.
2. Remove thunk function in threaded mode.
3. Inline syscalls into main for the simplest case.
4. Define main in common.h rather than form with printfs.
5. Fix generation for repeat mode
(we had 2 infinite loops: in main and in loop).
6. Remove unused functions (setup/reset_loop, setup/reset_test,
sandbox_namespace, etc).
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We always have current_time_ms in event_timedwait
so use it instead of manual clock_gettime calls
which tend to be bulkier.
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We already do this in sandbox=none, but forgot about setuid.
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Leftover after "executor: overhaul".
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test_copyin does bad things. Fix that.
executor/test.h: In function ‘int test_copyin()’:
executor/common.h:299:16: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
*(type*)(addr) = (type)(val); \
^
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Make as much code as possible shared between all OSes.
In particular main is now common across all OSes.
Make more code shared between executor and csource
(in particular, loop function and threaded execution logic).
Also make loop and threaded logic shared across all OSes.
Make more posix/unix code shared across OSes
(e.g. signal handling, pthread creation, etc).
Plus other changes along similar lines.
Also support test OS in executor (based on portable posix)
and add 4 arches that cover all execution modes
(fork server/no fork server, shmem/no shmem).
This change paves way for testing of executor code
and allows to preserve consistency across OSes and executor/csource.
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Add interface specified policies for IFLA_LINKINFO. I only added the
interfaces we create in initial setup. Remain other types of interfaces
in the TODO list.
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
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Most of them differ and accept path length and/or pid.
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It unconditionally crashes kernel now.
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Linux executor sets up some network devices for testing,
detect when that's supported on the machine and don't
do it if it's not supported.
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Remove syz_fuse* and implement them as normal syscalls.
We not have enough expressive power to form mount options.
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We currently generate poor formatted intergers,
generate proper integers using the new fmt type.
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RVERSION needs to use 0xffff tag, otherwise parsing fails.
Use only tags 1 and 2. They are densely allocated,
so most of the time it's 1. And it needs to be correct in
multiple replies for mount to succeed. So limit tag space.
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See the added comments.
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Add actual protocol messages.
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fmt type allows to convert intergers and resources
to string representation.
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Updates cover
* zx_vmo_create
* zx_clock_get_monotonic
* hypervisor- and vCPU-related syscalls
* system_get_features
* some DDK syscalls
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Only mount for now.
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Plus some minor assorted fixes.
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Error on unused structs/unions/resources/flags.
Finds tons of bugs.
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It was removed from zircon.
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Since we are taking address of functions in syscall table,
we need all headers even if we don't use them directly.
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