wrap: Do not print "dlopen is called for '(null)'" #1912
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If dlopen is called with (null) for the filename, it does nothing so
it's not useful to print a debug message for such case.
But the current implementation shows too many message as follows.
$ sudo apt install vulkan-tools
$ uftrace record -P. -la -v vkcube
...
wrap: dlopen is called for 'libVkLayer_MESA_device_select.so'
wrap: dlopen is called for '(null)'
wrap: dlopen is called for '(null)'
(... repeated 18 more times ...)
mcount: shmem_finish: tid: 10312 seqnum = 2 curr = 0, nr_buf = 2 max_buf = 2
This patch is to avoid printing these unhelpful messages.
Signed-off-by: Honggyu Kim <honggyu.kp@gmail.com>
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If dlopen is called with (null) for the filename, it does nothing so it's not useful to print a debug message for such case.
But the current implementation shows too many message as follows.
This patch is to avoid printing these unhelpful messages.