diff options
Diffstat (limited to 'tapset/ucontext-unwind.stp')
| -rw-r--r-- | tapset/ucontext-unwind.stp | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/tapset/ucontext-unwind.stp b/tapset/ucontext-unwind.stp index d699e588..399ce0c5 100644 --- a/tapset/ucontext-unwind.stp +++ b/tapset/ucontext-unwind.stp @@ -28,7 +28,25 @@ function print_ubacktrace () %{ /* unprivileged */ assert_is_myproc(); if (CONTEXT->regs) { _stp_stack_print(CONTEXT->regs, 1, CONTEXT->pi, MAXTRACE, - current); + current, CONTEXT->ri); + } else { + _stp_printf("Systemtap probe: %s\n", CONTEXT->probe_point); + } +%} + +/** + * sfunction print_ubacktrace_brief- Print stack back trace for current task. EXPERIMENTAL! + * + * Equivalent to print_ubacktrace(), but output for each symbol is + * shorter (just name and offset), and the function address is + * printed if it can't be mapped to a name. + */ + +function print_ubacktrace_brief () %{ /* unprivileged */ + assert_is_myproc(); + if (CONTEXT->regs) { + _stp_stack_print(CONTEXT->regs, SYM_VERBOSE_BRIEF, CONTEXT->pi, + MAXTRACE, current, CONTEXT->ri); } else { _stp_printf("Systemtap probe: %s\n", CONTEXT->probe_point); } @@ -47,7 +65,7 @@ function ubacktrace:string () %{ /* pure */ /* unprivileged */ if (CONTEXT->regs) _stp_stack_snprint (THIS->__retvalue, MAXSTRINGLEN, CONTEXT->regs, 0, CONTEXT->pi, MAXTRACE, - current); + current, CONTEXT->ri); else strlcpy (THIS->__retvalue, "", MAXSTRINGLEN); %} |