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trace: Trace qemu_malloc() and qemu_vmalloc()

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It is often useful to instrument memory management functions in order to
find leaks or performance problems.  This patch adds trace events for
the memory allocation primitives.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This commit is contained in:
Stefan Hajnoczi 2010-05-22 18:09:25 +01:00 • committed by Anthony Liguori
parent 81a97d9d97
commit cd245a1932
3 changed files with 38 additions and 8 deletions
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10
trace-events
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@ -27,3 +27,13 @@
# system may not have the necessary headers included.
#
# The <format-string> should be a sprintf()-compatible format string.
# qemu-malloc.c
disable qemu_malloc(size_t size, void *ptr) "size %zu ptr %p"
disable qemu_realloc(void *ptr, size_t size, void *newptr) "ptr %p size %zu newptr %p"
disable qemu_free(void *ptr) "ptr %p"
# osdep.c
disable qemu_memalign(size_t alignment, size_t size, void *ptr) "alignment %zu size %zu ptr %p"
disable qemu_valloc(size_t size, void *ptr) "size %zu ptr %p"
disable qemu_vfree(void *ptr) "ptr %p"