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No9/dtracemeetup.md

Last active June 22, 2017 18:34
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@dariocravero
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dariocravero commented Jun 22, 2017 •
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Syscall Tracing (syscall Provider)

dtrace -qn 'syscall:::entry { printf("%s %s\n", execname, probefunc); }'

read() Sizes (syscall Provider)

dtrace -qn 'syscall::read:return /execname == "sshd"/ { @ = quantize(arg0); }'

Kernel Function Tracing (FBT Provider)

dtrace -n 'fbt::malloc:entry /pid != $pid/ { printf("%s %s\n", execname, arg0); }'

Userland Tracing (pid Provider)

dtrace -qn 'pid$target:libc.so.7::entry { @[probefunc] = count(); }' -c /bin/ls

proc Provider (SDT)

dtrace -n 'proc:::exec-success { printf("%s", curpsinfo->pr_psargs); }'

@No9
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No9 commented Jun 22, 2017

https://www.youtube.com/results?search_query=UBUNTU+KILLS+KITTENS
Ubuntu Dtrace

@No9
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No9 commented Jun 22, 2017

FInd leaks by monitoring mallocs

@goyox86
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goyox86 commented Jun 22, 2017

https://github.com/prash-wghats/VSCode-For-FreeBSD

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