riscv/qemu - qemu - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
Stefan Hajnoczi	0b5538c300	simpletrace: Thread-safe tracing Trace events outside the global mutex cannot be used with the simple trace backend since it is not thread-safe. There is no check to prevent them being enabled so people sometimes learn this the hard way. This patch restructures the simple trace backend with a ring buffer suitable for multiple concurrent writers. A writeout thread empties the trace buffer when threshold fill levels are reached. Should the writeout thread be unable to keep up with trace generation, records will simply be dropped. Each time events are dropped a special record is written to the trace file indicating how many events were dropped. The event ID is 0xfffffffffffffffe and its signature is dropped(uint32_t count). Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>	15 years ago
Jes Sorensen	e323c93edf	tracetool: Add optional argument to specify dtrace probe names Optional feature allowing a user to generate the probe list to match the name of the binary, in case they wish to install qemu under a different name than qemu-{system,user},<arch> Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Stefan Hajnoczi <stefaha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>	15 years ago
Stefan Hajnoczi	59da668492	simpletrace: Make simpletrace.py a Python module The simpletrace.py script pretty-prints a binary trace file. Most of the code can be reused by trace file analysis scripts, so turn it into a module. Here is an example script that uses the new simpletrace module: #!/usr/bin/env python # Print virtqueue elements that were never returned to the guest. import simpletrace class VirtqueueRequestTracker(simpletrace.Analyzer): def __init__(self): self.elems = set() def virtqueue_pop(self, vq, elem, in_num, out_num): self.elems.add(elem) def virtqueue_fill(self, vq, elem, length, idx): self.elems.remove(elem) def end(self): for elem in self.elems: print hex(elem) simpletrace.run(VirtqueueRequestTracker()) The simpletrace API is based around the Analyzer class. Users implement an analyzer subclass and add methods for trace events they want to process. A catchall() method is invoked for trace events which do not have dedicated methods. Finally, there are also begin() and end() methods like in sed that can be used to perform setup or print statistics at the end. A binary trace file is processed either with: simpletrace.run(analyzer) # uses command-line args or with: simpletrace.process('path/to/trace-events', 'path/to/trace-file', analyzer) Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>	15 years ago
Blue Swirl	ad36ce8ba9	checkpatch.pl: don't complain about old lines with tabs Don't complain when the patch includes lines with tabs only in the hunk's untouched context. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago
Fabien Chouteau	320fba2a1f	New trace-event backend: stderr This backend sends trace events to standard error output during the emulation. Also add a "--list-backends" option to tracetool, so configure script can display the list of available backends. Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Acked-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago
Blue Swirl	ba76a84d2d	gdbstub-xml: avoid a warning from sparse Include a header to get the declaration for xml_builtin. This avoids a warning from sparse: CC m68k-softmmu/gdbstub-xml.o gdbstub-xml.c:244:12: warning: symbol 'xml_builtin' was not declared. Should it be static? Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago
Jan Kiszka	789f88d0b2	checkpatch: Fix bracing false positives on #else Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago
Blue Swirl	b646968336	checkpatch: adjust to QEMUisms Change checkpatch.pl for QEMU use: - Root directory detection - Forbid tabs - Indent at 4 spaces - Allow typedefs - Enforce brace use even for single statement blocks - Don't suggest nonexistent cleanup tools Mention the script in CODING_STYLE. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago
Blue Swirl	1ec3f6f9ab	Add checkpatch.pl from Linux kernel Unchanged import from http://www.kernel.org/pub/linux/kernel/people/apw/checkpatch/checkpatch.pl-0.31 Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago
Blue Swirl	4c3b5a4891	Add scripts directory Move build and user scripts into scripts directory. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>	15 years ago