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# Trace events for debugging and performance instrumentation |
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# |
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# This file is processed by the tracetool script during the build. |
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# |
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# To add a new trace event: |
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# |
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# 1. Choose a name for the trace event. Declare its arguments and format |
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# string. |
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# |
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# 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() -> |
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# trace_multiwrite_cb(). The source file must #include "trace.h". |
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# |
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# Format of a trace event: |
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# |
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# [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>" |
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# |
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# Example: qemu_malloc(size_t size) "size %zu" |
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# |
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# The "disable" keyword will build without the trace event. |
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# In case of 'simple' trace backend, it will allow the trace event to be |
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# compiled, but this would be turned off by default. It can be toggled on via |
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# the monitor. |
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# |
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# The <name> must be a valid as a C function name. |
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# |
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# Types should be standard C types. Use void * for pointers because the trace |
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# system may not have the necessary headers included. |
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# |
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# The <format-string> should be a sprintf()-compatible format string. |
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|
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# qemu-malloc.c |
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disable qemu_malloc(size_t size, void *ptr) "size %zu ptr %p" |
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disable qemu_realloc(void *ptr, size_t size, void *newptr) "ptr %p size %zu newptr %p" |
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disable qemu_free(void *ptr) "ptr %p" |
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|
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# osdep.c |
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disable qemu_memalign(size_t alignment, size_t size, void *ptr) "alignment %zu size %zu ptr %p" |
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disable qemu_vmalloc(size_t size, void *ptr) "size %zu ptr %p" |
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disable qemu_vfree(void *ptr) "ptr %p" |
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|
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# hw/virtio.c |
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disable virtqueue_fill(void *vq, const void *elem, unsigned int len, unsigned int idx) "vq %p elem %p len %u idx %u" |
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disable virtqueue_flush(void *vq, unsigned int count) "vq %p count %u" |
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disable virtqueue_pop(void *vq, void *elem, unsigned int in_num, unsigned int out_num) "vq %p elem %p in_num %u out_num %u" |
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disable virtio_queue_notify(void *vdev, int n, void *vq) "vdev %p n %d vq %p" |
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disable virtio_irq(void *vq) "vq %p" |
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disable virtio_notify(void *vdev, void *vq) "vdev %p vq %p" |
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|
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# block.c |
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disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d" |
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disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d" |
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disable bdrv_aio_multiwrite_earlyfail(void *mcb) "mcb %p" |
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disable bdrv_aio_multiwrite_latefail(void *mcb, int i) "mcb %p i %d" |
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disable bdrv_aio_readv(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p" |
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disable bdrv_aio_writev(void *bs, int64_t sector_num, int nb_sectors, void *opaque) "bs %p sector_num %"PRId64" nb_sectors %d opaque %p" |
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|
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# hw/virtio-blk.c |
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disable virtio_blk_req_complete(void *req, int status) "req %p status %d" |
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disable virtio_blk_rw_complete(void *req, int ret) "req %p ret %d" |
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disable virtio_blk_handle_write(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu" |
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|
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# posix-aio-compat.c |
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disable paio_submit(void *acb, void *opaque, int64_t sector_num, int nb_sectors, int type) "acb %p opaque %p sector_num %"PRId64" nb_sectors %d type %d" |
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|
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# ioport.c |
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disable cpu_in(unsigned int addr, unsigned int val) "addr %#x value %u" |
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disable cpu_out(unsigned int addr, unsigned int val) "addr %#x value %u" |
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|
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# balloon.c |
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# Since requests are raised via monitor, not many tracepoints are needed. |
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disable balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu" |
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|
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# hw/apic.c |
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disable apic_local_deliver(int vector, uint32_t lvt) "vector %d delivery mode %d" |
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disable apic_deliver_irq(uint8_t dest, uint8_t dest_mode, uint8_t delivery_mode, uint8_t vector_num, uint8_t polarity, uint8_t trigger_mode) "dest %d dest_mode %d delivery_mode %d vector %d polarity %d trigger_mode %d" |
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disable cpu_set_apic_base(uint64_t val) "%016"PRIx64"" |
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disable cpu_get_apic_base(uint64_t val) "%016"PRIx64"" |
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disable apic_mem_readl(uint64_t addr, uint32_t val) "%"PRIx64" = %08x" |
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disable apic_mem_writel(uint64_t addr, uint32_t val) "%"PRIx64" = %08x" |
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# coalescing |
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disable apic_reset_irq_delivered(int apic_irq_delivered) "old coalescing %d" |
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disable apic_get_irq_delivered(int apic_irq_delivered) "returning coalescing %d" |
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disable apic_set_irq(int apic_irq_delivered) "coalescing %d" |