projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 3d211d9f LV |
1 | #!/usr/bin/env python |
| 2 | # -*- coding: utf-8 -*- | |
| 3 | ||
| 4 | """ | |
| 5 | Generic management for the 'vcpu' property. | |
| 6 | ||
| 7 | """ | |
| 8 | ||
| 9 | __author__ = "Lluís Vilanova <[email protected]>" | |
| 10 | __copyright__ = "Copyright 2016, Lluís Vilanova <[email protected]>" | |
| 11 | __license__ = "GPL version 2 or (at your option) any later version" | |
| 12 | ||
| 13 | __maintainer__ = "Stefan Hajnoczi" | |
| 14 | __email__ = "[email protected]" | |
| 15 | ||
| 16 | ||
| 17 | from tracetool import Arguments, try_import | |
| 18 | ||
| 19 | ||
| 20 | def transform_event(event): | |
| 21 | """Transform event to comply with the 'vcpu' property (if present).""" | |
| 22 | if "vcpu" in event.properties: | |
| 23 | # events with 'tcg-trans' and 'tcg-exec' are auto-generated from | |
| 24 | # already-patched events | |
| 25 | assert "tcg-trans" not in event.properties | |
| 26 | assert "tcg-exec" not in event.properties | |
| 27 | ||
| 28 | event.args = Arguments([("CPUState *", "__cpu"), event.args]) | |
| 29 | if "tcg" in event.properties: | |
| 30 | fmt = "\"cpu=%p \"" | |
| 31 | event.fmt = [fmt + event.fmt[0], | |
| 32 | fmt + event.fmt[1]] | |
| 33 | else: | |
| 34 | fmt = "\"cpu=%p \"" | |
| 35 | event.fmt = fmt + event.fmt | |
| 36 | return event | |
| 37 | ||
| 38 | ||
| 39 | def transform_args(format, event, *args, **kwargs): | |
| 40 | """Transforms the arguments to suit the specified format. | |
| 41 | ||
| 42 | The format module must implement function 'vcpu_args', which receives the | |
| 43 | implicit arguments added by the 'vcpu' property, and must return suitable | |
| 44 | arguments for the given format. | |
| 45 | ||
| 46 | The function is only called for events with the 'vcpu' property. | |
| 47 | ||
| 48 | Parameters | |
| 49 | ========== | |
| 50 | format : str | |
| 51 | Format module name. | |
| 52 | event : Event | |
| 53 | args, kwargs | |
| 54 | Passed to 'vcpu_transform_args'. | |
| 55 | ||
| 56 | Returns | |
| 57 | ======= | |
| 58 | Arguments | |
| 59 | The transformed arguments, including the non-implicit ones. | |
| 60 | ||
| 61 | """ | |
| 62 | if "vcpu" in event.properties: | |
| 63 | ok, func = try_import("tracetool.format." + format, | |
| 64 | "vcpu_transform_args") | |
| 65 | assert ok | |
| 66 | assert func | |
| 67 | return Arguments([func(event.args[:1], *args, **kwargs), | |
| 68 | event.args[1:]]) | |
| 69 | else: | |
| 70 | return event.args |