1FUNCTION::PRINT_UBAC(3stap)    Context Functions   FUNCTION::PRINT_UBAC(3stap)
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NAME

6       function::print_ubacktrace - Print stack back trace for current
7       user-space task.
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SYNOPSIS

10       1) print_ubacktrace()
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12       2) print_ubacktrace(pc:long,sp:long,fp:long)
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ARGUMENTS

15       pc
16           override PC
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18       sp
19           override SP
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21       fp
22           override FP
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DESCRIPTION

25       1)
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27       2) Equivalent to print_ustack(ubacktrace), except that deeper stack
28       nesting may be supported. Returns nothing. See print_backtrace for
29       kernel backtrace.
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31       Equivalent to print_ubacktrace, but it performs the backtrace using the
32       pc, sp, and fp provided. Useful
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NOTE

35       To get (full) backtraces for user space applications and shared shared
36       libraries not mentioned in the current script run stap with -d
37       /path/to/exe-or-so and/or add --ldd to load all needed unwind data.
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SEE ALSO

40       tapset::ucontext-unwind(3stap)
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SEE ALSO

43       tapset::ucontext-unwind(3stap)
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47SystemTap Tapset Reference         May 2021        FUNCTION::PRINT_UBAC(3stap)