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set test "dump_functions"
# This test verifies that --dump-functions works properly. We also check more
# specific behaviour, such as:
# 1. --dump-functions should list normal tapset functions such as user_string
# but not internal functions such as _caller_match
# 2. -v --dump-functions should list internal functions such as _caller_match
# 3. --dump-functions should list embedded C tags including guru, unprivileged,
# and myproc-unprivileged but not pure, and unmangled tags
# 4. -v --dump-functions should list pure, unmangled tags
proc has_function { output wanted func } {
global test subtest
set inlist [lsearch $output $func]
if {[expr $wanted && $inlist > 0] \
|| [expr !$wanted && $inlist < 0]} {
pass "$test ($subtest)"
} else {
fail "$test ($subtest)"
}
}
# Get output for --dump-functions
if {[catch {exec stap --dump-functions 2>/dev/null} output]} {
fail "$test (can't get output of stap --dump-functions)"
return
} else {
pass "$test (got output of stap --dump-functions)"
}
# Get output for -v --dump-functions
if {[catch {exec stap -v --dump-functions 2>/dev/null} outputv]} {
fail "$test (can't get output of stap -v --dump-functions)"
return
} else {
pass "$test (got output of stap -v --dump-functions)"
}
# Split outputs into lines
set output [split $output "\n"]
set outputv [split $outputv "\n"]
verbose -log "output: $output"
set subtest "user_string in output"
has_function $output 1 "user_string:string *"
set subtest "ubacktrace in output"
has_function $output 1 "ubacktrace:string *"
set subtest "callers in output"
has_function $output 1 "callers:string *"
set subtest "_caller_match not in output"
has_function $output 0 "_caller_match:long *"
set subtest "user_string in -v output"
has_function $outputv 1 "user_string:string *"
set subtest "_caller_match in -v output"
has_function $outputv 1 "_caller_match:long *"
set subtest "mdelay has guru in output"
has_function $output 1 "mdelay:unknown * /\* guru \*/"
set subtest "mdelay has guru in -v output"
has_function $outputv 1 "mdelay:unknown * /\* guru \*/"
set subtest "uid has unpriv but not pure in output"
has_function $output 1 "uid:long () /\* unprivileged \*/"
set subtest "uid has unpriv and pure in -v output"
has_function $outputv 1 "uid:long () /\* pure \*/ /\* unprivileged \*/"
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