1FUNCTION::PRINT_UBAC(3stap)    Context Functions   FUNCTION::PRINT_UBAC(3stap)
2
3
4

NAME

6       function::print_ubacktrace - Print stack back trace for current
7       user-space task.
8

SYNOPSIS

10       1) print_ubacktrace()
11
12       2) print_ubacktrace(pc:long,sp:long,fp:long)
13

ARGUMENTS

15       pc
16           override PC
17
18       sp
19           override SP
20
21       fp
22           override FP
23

DESCRIPTION

25       1)
26
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.
30
31       Equivalent to print_ubacktrace, but it performs the backtrace using the
32       pc, sp, and fp provided. Useful
33

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.
38

SEE ALSO

40       tapset::ucontext-unwind(3stap)
41

SEE ALSO

43       tapset::ucontext-unwind(3stap)
44
45
46
47SystemTap Tapset Reference       November 2021     FUNCTION::PRINT_UBAC(3stap)
Impressum