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Convert tests to table tests to avoid duplication
and make it easier to add new tests.
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Taken some arm64 devices for example:
kaslr_offset is diff at bits 12-40, and kernel modules are loaded at 2GB space,
so we have `ffffffd342e10000 T _stext` where uppper 32bit is ffffffd3. However,
if we check modules range, the 1st module is loaded at 0xffffffd2eeb2a000,
while the last module is loaded at 0xffffffd2f42c4000.
We can see the upper 32bits are diff for core kernel and modules.
If we use current 32bits for covered PC, we will get wrong module address
recovered.
So we need to move to 64bit cover and signal:
- change cover/sig to 64bit to fit for syz-executor change
- remove kernel upper base logic as kernel upper base is not a constant when
kaslr enabled for core kernel and modules.
- remove unused pcBase
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mgrconfig used to be "leaf" package that can be imported by anything.
Recently it started importing pkg/cover for Subsystem definition.
It leads to the following import cycle if I try to import
pkg/host from pkg/cover:
package github.com/google/syzkaller/pkg/bisect
imports github.com/google/syzkaller/pkg/build
imports github.com/google/syzkaller/pkg/mgrconfig
imports github.com/google/syzkaller/pkg/cover
imports github.com/google/syzkaller/pkg/host
imports github.com/google/syzkaller/pkg/csource
imports github.com/google/syzkaller/pkg/mgrconfig:
import cycle not allowed
Move Subsystem into pkg/mgrconfig itself.
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* pkg/cover, syz-manager: show coverage summary
The funccover or cover page is not easy for statistic purpose.
So add /cover?type=rawfiles to show coverage based on each file.
And /cover?type=table page to show coverage for group of components.
If driver_path_map.json exists, /cover?type=table can show component coverage.
Format example:
{
"all": [ "/" ],
"audio": [
"/techpack/audio/asoc",
"/techpack/audio/dsp",
"/techpack/audio/ipc",
"/sound/core"
]
}
If driver_path_map.json not exist, it will show one line summary.
* pkg/cover: use subsystem naming
* syz-manager: use /subsystemcover and /filecover
* pkg/cover: use subsystem from config
* pkg/mgrconfig: add kernel_subsystem
* pkg/cover, tools/syz-cover: fix make test
* all: fix presumit errors
* pkg/cover, syz-manager: fix subsystem
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Better encapsulate all of this logic instead of exposing
raw .text offset and a bunch of functions.
Also allows to support gvisor coverage where PCs don't
need to be rewound to previous instruction.
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Will be used in the next patch.
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Fix typos, non-canonical code, remove dead code, etc.
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Signal on successful syscalls is more valuable than
signal on unsuccessful syscalls.y
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