set test "labels"
if {![installtest_p]} {untested $test; return}

# Try to find utrace_attach symbol in /proc/kallsyms
# copy from utrace_p5.exp
set utrace_support_found 0
set path "/proc/kallsyms"
if {! [catch {exec grep -q utrace_attach $path} dummy]} {
    set utrace_support_found 1
}
if {$utrace_support_found == 0} { untested "$test"; return }

# Compile a C program to use as the user-space probing target
set label_srcpath "[pwd]/labels.c"
set label_exepath "[pwd]/labels.x"
set label_flags "additional_flags=-g"
set fp [open $label_srcpath "w"]
puts $fp "
int
main ()
{
  sleep(5);
  int a = 0;
  int b = 0;
  char *c;
init_an_int:
  a = 2;
init_another_int:
  b = 3;
  c = \"abc\";
ptr_inited:
  return 1;
}
"
close $fp

set fp [open "[pwd]/labels.stp" "w"]
puts $fp "
probe process(\"labels.x\").function(\"main*@labels.c\").label(\"init_*\") {printf (\"VARS %s\\n\",\$\$vars)}
probe process(\"labels.x\").function(\"main*@labels.c\").label(\"ptr_inited\") {printf (\"VARS %s\\n\",\$\$vars)}
"
close $fp

set ok 0

set res [target_compile $label_srcpath $label_exepath executable $label_flags]
if { $res != "" } {
    verbose "target_compile failed: $res" 2
    fail "compiling labels.c -g"
    return
} else {
    pass "compiling labels.c -g"
}

verbose -log "spawn stap -c $label_exepath [pwd]/labels.stp"
spawn stap -c $label_exepath [pwd]/labels.stp

expect {
    -timeout 180
    -re {VARS a=0x0 b=0x0.*VARS a=0x2 b=0x0.*VARS a=0x2 b=0x3 c=0x[a-f01-9]} { incr ok; exp_continue }
    timeout { fail "$test (timeout)" }
    eof { }
}

wait

if {$ok == 1} { pass "$test" } { fail "$test ($ok)" }