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1 | 94a420b1 | Stefan Hajnoczi | # Trace events for debugging and performance instrumentation |
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2 | 94a420b1 | Stefan Hajnoczi | # |
3 | 94a420b1 | Stefan Hajnoczi | # This file is processed by the tracetool script during the build. |
4 | 94a420b1 | Stefan Hajnoczi | # |
5 | 94a420b1 | Stefan Hajnoczi | # To add a new trace event: |
6 | 94a420b1 | Stefan Hajnoczi | # |
7 | 94a420b1 | Stefan Hajnoczi | # 1. Choose a name for the trace event. Declare its arguments and format |
8 | 94a420b1 | Stefan Hajnoczi | # string. |
9 | 94a420b1 | Stefan Hajnoczi | # |
10 | 94a420b1 | Stefan Hajnoczi | # 2. Call the trace event from code using trace_##name, e.g. multiwrite_cb() -> |
11 | 94a420b1 | Stefan Hajnoczi | # trace_multiwrite_cb(). The source file must #include "trace.h". |
12 | 94a420b1 | Stefan Hajnoczi | # |
13 | 94a420b1 | Stefan Hajnoczi | # Format of a trace event: |
14 | 94a420b1 | Stefan Hajnoczi | # |
15 | 1e2cf2bc | Stefan Hajnoczi | # [disable] <name>(<type1> <arg1>[, <type2> <arg2>] ...) "<format-string>" |
16 | 94a420b1 | Stefan Hajnoczi | # |
17 | 94a420b1 | Stefan Hajnoczi | # Example: qemu_malloc(size_t size) "size %zu" |
18 | 94a420b1 | Stefan Hajnoczi | # |
19 | 1e2cf2bc | Stefan Hajnoczi | # The "disable" keyword will build without the trace event. |
20 | 1e2cf2bc | Stefan Hajnoczi | # In case of 'simple' trace backend, it will allow the trace event to be |
21 | 1e2cf2bc | Stefan Hajnoczi | # compiled, but this would be turned off by default. It can be toggled on via |
22 | 1e2cf2bc | Stefan Hajnoczi | # the monitor. |
23 | 1e2cf2bc | Stefan Hajnoczi | # |
24 | 94a420b1 | Stefan Hajnoczi | # The <name> must be a valid as a C function name. |
25 | 94a420b1 | Stefan Hajnoczi | # |
26 | 94a420b1 | Stefan Hajnoczi | # Types should be standard C types. Use void * for pointers because the trace |
27 | 94a420b1 | Stefan Hajnoczi | # system may not have the necessary headers included. |
28 | 94a420b1 | Stefan Hajnoczi | # |
29 | 94a420b1 | Stefan Hajnoczi | # The <format-string> should be a sprintf()-compatible format string. |
30 | cd245a19 | Stefan Hajnoczi | |
31 | cd245a19 | Stefan Hajnoczi | # qemu-malloc.c |
32 | cd245a19 | Stefan Hajnoczi | disable qemu_malloc(size_t size, void *ptr) "size %zu ptr %p" |
33 | cd245a19 | Stefan Hajnoczi | disable qemu_realloc(void *ptr, size_t size, void *newptr) "ptr %p size %zu newptr %p" |
34 | cd245a19 | Stefan Hajnoczi | disable qemu_free(void *ptr) "ptr %p" |
35 | cd245a19 | Stefan Hajnoczi | |
36 | cd245a19 | Stefan Hajnoczi | # osdep.c |
37 | cd245a19 | Stefan Hajnoczi | disable qemu_memalign(size_t alignment, size_t size, void *ptr) "alignment %zu size %zu ptr %p" |
38 | dda85211 | Blue Swirl | disable qemu_vmalloc(size_t size, void *ptr) "size %zu ptr %p" |
39 | cd245a19 | Stefan Hajnoczi | disable qemu_vfree(void *ptr) "ptr %p" |
40 | 6d519a5f | Stefan Hajnoczi | |
41 | 64979a4d | Stefan Hajnoczi | # hw/virtio.c |
42 | 64979a4d | Stefan Hajnoczi | disable virtqueue_fill(void *vq, const void *elem, unsigned int len, unsigned int idx) "vq %p elem %p len %u idx %u" |
43 | 64979a4d | Stefan Hajnoczi | disable virtqueue_flush(void *vq, unsigned int count) "vq %p count %u" |
44 | 64979a4d | Stefan Hajnoczi | 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" |
45 | 64979a4d | Stefan Hajnoczi | disable virtio_queue_notify(void *vdev, int n, void *vq) "vdev %p n %d vq %p" |
46 | 64979a4d | Stefan Hajnoczi | disable virtio_irq(void *vq) "vq %p" |
47 | 64979a4d | Stefan Hajnoczi | disable virtio_notify(void *vdev, void *vq) "vdev %p vq %p" |
48 | 64979a4d | Stefan Hajnoczi | |
49 | 6d519a5f | Stefan Hajnoczi | # block.c |
50 | 6d519a5f | Stefan Hajnoczi | disable multiwrite_cb(void *mcb, int ret) "mcb %p ret %d" |
51 | 6d519a5f | Stefan Hajnoczi | disable bdrv_aio_multiwrite(void *mcb, int num_callbacks, int num_reqs) "mcb %p num_callbacks %d num_reqs %d" |
52 | 6d519a5f | Stefan Hajnoczi | disable bdrv_aio_multiwrite_earlyfail(void *mcb) "mcb %p" |
53 | 6d519a5f | Stefan Hajnoczi | disable bdrv_aio_multiwrite_latefail(void *mcb, int i) "mcb %p i %d" |
54 | bbf0a440 | Stefan Hajnoczi | 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" |
55 | bbf0a440 | Stefan Hajnoczi | 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" |
56 | 6d519a5f | Stefan Hajnoczi | |
57 | 6d519a5f | Stefan Hajnoczi | # hw/virtio-blk.c |
58 | 6d519a5f | Stefan Hajnoczi | disable virtio_blk_req_complete(void *req, int status) "req %p status %d" |
59 | 6d519a5f | Stefan Hajnoczi | disable virtio_blk_rw_complete(void *req, int ret) "req %p ret %d" |
60 | 9a85d394 | Stefan Hajnoczi | disable virtio_blk_handle_write(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu" |
61 | 6d519a5f | Stefan Hajnoczi | |
62 | 6d519a5f | Stefan Hajnoczi | # posix-aio-compat.c |
63 | 9a85d394 | Stefan Hajnoczi | 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" |
64 | bd3c9aa5 | Prerna Saxena | |
65 | bd3c9aa5 | Prerna Saxena | # ioport.c |
66 | bd3c9aa5 | Prerna Saxena | disable cpu_in(unsigned int addr, unsigned int val) "addr %#x value %u" |
67 | bd3c9aa5 | Prerna Saxena | disable cpu_out(unsigned int addr, unsigned int val) "addr %#x value %u" |
68 | 62dd89de | Prerna Saxena | |
69 | 62dd89de | Prerna Saxena | # balloon.c |
70 | 62dd89de | Prerna Saxena | # Since requests are raised via monitor, not many tracepoints are needed. |
71 | 62dd89de | Prerna Saxena | disable balloon_event(void *opaque, unsigned long addr) "opaque %p addr %lu" |
72 | d8023f31 | Blue Swirl | |
73 | d8023f31 | Blue Swirl | # hw/apic.c |
74 | d8023f31 | Blue Swirl | disable apic_local_deliver(int vector, uint32_t lvt) "vector %d delivery mode %d" |
75 | d8023f31 | Blue Swirl | 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" |
76 | d8023f31 | Blue Swirl | disable cpu_set_apic_base(uint64_t val) "%016"PRIx64"" |
77 | d8023f31 | Blue Swirl | disable cpu_get_apic_base(uint64_t val) "%016"PRIx64"" |
78 | d8023f31 | Blue Swirl | disable apic_mem_readl(uint64_t addr, uint32_t val) "%"PRIx64" = %08x" |
79 | d8023f31 | Blue Swirl | disable apic_mem_writel(uint64_t addr, uint32_t val) "%"PRIx64" = %08x" |
80 | d8023f31 | Blue Swirl | # coalescing |
81 | d8023f31 | Blue Swirl | disable apic_reset_irq_delivered(int apic_irq_delivered) "old coalescing %d" |
82 | d8023f31 | Blue Swirl | disable apic_get_irq_delivered(int apic_irq_delivered) "returning coalescing %d" |
83 | d8023f31 | Blue Swirl | disable apic_set_irq(int apic_irq_delivered) "coalescing %d" |