testsuite/systemtap.base/global_init.stp


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/*
 * global_init.stp
 *
 * Check that global variables are initialized before all begin probes
 */

probe begin {  log("systemtap starting probe")  }
probe end   {  log("systemtap ending probe")    }

global gnum = 42
global gstr = "foobar"

global gnum_saved
global gstr_saved
probe begin(-9223372036854775808) {
    gnum_saved = gnum
    gstr_saved = gstr
}

probe end {
  if (gnum_saved == 42)
    log("systemtap test success")
  else
    printf("systemtap test failure - gnum_saved:%d != 42\n", gnum_saved)

  if (gstr_saved == "foobar")
    log("systemtap test success")
  else
    printf("systemtap test failure - gstr_saved:%s != foobar\n", gstr_saved)
}