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| author | Tim Moore <timoore@redhat.com> | 2009-12-17 16:18:34 +0100 |
|---|---|---|
| committer | Tim Moore <timoore@redhat.com> | 2009-12-17 17:37:37 +0100 |
| commit | d5a2bd44d30b45b6829eb27d70ffb6ceaa70c5bd (patch) | |
| tree | 0eced4c394d1e576932c5739bc5f819f8d584a6e /runtime/sym.c | |
| parent | 4c5ce7a55108edb5203b3d69949f09c2284f1963 (diff) | |
| download | systemtap-steved-d5a2bd44d30b45b6829eb27d70ffb6ceaa70c5bd.tar.gz systemtap-steved-d5a2bd44d30b45b6829eb27d70ffb6ceaa70c5bd.tar.xz systemtap-steved-d5a2bd44d30b45b6829eb27d70ffb6ceaa70c5bd.zip | |
support for a brief backtrace format
This only prints symbol+offset, or an address if the symbol isn't
known.
* runtime/runtime.h (SYM_VERBOSE_NO, SYM_VERBOSE_FULL,
SYM_VERBOSE_BRIEF): new constants
* runtime/stack.c (_stp_stack_print): support brief format
* runtime/sym.c (_stp_func_print): ditto
* tapset/ucontext-unwind.stp (print_ubacktrace_brief): new function
* testsuite/systemtap.context/fib.c: new test program
* testsuite/systemtap.context/fib.stp: new test
* testsuite/systemtap.context/fib.exp: new test
Diffstat (limited to 'runtime/sym.c')
| -rw-r--r-- | runtime/sym.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/runtime/sym.c b/runtime/sym.c index 953161bc..cd0c8a71 100644 --- a/runtime/sym.c +++ b/runtime/sym.c @@ -374,19 +374,31 @@ static int _stp_func_print(unsigned long address, int verbose, int exact, else exstr = " (inexact)"; - name = _stp_kallsyms_lookup(address, &size, &offset, &modname, NULL, task); + name = _stp_kallsyms_lookup(address, &size, &offset, &modname, NULL, + task); if (name) { - if (verbose) { + switch (verbose) { + case SYM_VERBOSE_FULL: if (modname && *modname) _stp_printf(" %p : %s+%#lx/%#lx [%s]%s\n", - (int64_t) address, name, offset, size, modname, exstr); + (int64_t) address, name, offset, + size, modname, exstr); else - _stp_printf(" %p : %s+%#lx/%#lx%s\n", (int64_t) address, name, offset, size, exstr); - } else + _stp_printf(" %p : %s+%#lx/%#lx%s\n", + (int64_t) address, name, offset, size, + exstr); + break; + case SYM_VERBOSE_BRIEF: + _stp_printf("%s+%#lx\n", name, offset); + break; + case SYM_VERBOSE_NO: + default: _stp_printf("%p ", (int64_t) address); + } return 1; - } + } else if (verbose == SYM_VERBOSE_BRIEF) + _stp_printf("%p\n", (int64_t) address); return 0; } |