From: "wcohen at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug translator/25193] Incorrect reporting of line information for stap -v -L 'process("/usr/bin/ld.gold").statement("*@*:*")'
Date: Wed, 03 Jun 2020 14:42:17 +0000 [thread overview]
Message-ID: <bug-25193-6586-sDaCl90c96@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-25193-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=25193
--- Comment #5 from William Cohen <wcohen at redhat dot com> ---
GDB has some ability to provide backtraces that include inlined functions.
Should see how gdb is able to get that information about source line and
function name.
Used following to find an inlined function to set a breakpoint on:
$ stap -v -L 'process("./multiple_views").function("*").inline'
$ gdb multiple_views
...
(gdb) break _M_set_length
Breakpoint 1 at 0x4010dd: file /usr/include/c++/10/bits/basic_string.h, line
214.
(gdb) run
Starting program: /home/wcohen/multiple_views
Missing separate debuginfo for /lib64/libstdc++.so.6
Try: dnf --enablerepo='*debug*' install
/usr/lib/debug/.build-id/7a/fd1ced0ad3b1fdfe1b121ae292881439af5e57.debug
Breakpoint 1, std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_set_length (__n=12,
this=0x7fffffffd7d0) at /usr/include/c++/10/bits/basic_string.h:217
217 traits_type::assign(_M_data()[__n], _CharT());
(gdb) where
#0 std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_set_length (__n=12,
this=0x7fffffffd7d0) at /usr/include/c++/10/bits/basic_string.h:217
#1 std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_construct<char const*> (
__end=0x40201c "", __beg=0x402010 "hello world\n", this=0x7fffffffd7d0) at
/usr/include/c++/10/bits/basic_string.tcc:232
#2 std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_construct_aux<char const*> (
__end=0x40201c "", __beg=0x402010 "hello world\n", this=0x7fffffffd7d0) at
/usr/include/c++/10/bits/basic_string.h:247
#3 std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::_M_construct<char const*> (
__end=0x40201c "", __beg=0x402010 "hello world\n", this=0x7fffffffd7d0) at
/usr/include/c++/10/bits/basic_string.h:266
#4 std::__cxx11::basic_string<char, std::char_traits<char>,
std::allocator<char> >::basic_string (__a=...,
__s=0x402010 "hello world\n", this=0x7fffffffd7d0) at
/usr/include/c++/10/bits/basic_string.h:527
#5 main (argc=<optimized out>, argv=<optimized out>) at multiple_views.cc:8
(gdb) p/x $pc
$1 = 0x4010dd
--
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prev parent reply other threads:[~2020-06-03 14:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-14 21:36 [Bug translator/25193] New: " wcohen at redhat dot com
2020-05-12 18:18 ` [Bug translator/25193] " wcohen at redhat dot com
2020-05-12 18:54 ` wcohen at redhat dot com
2020-05-15 18:32 ` wcohen at redhat dot com
2020-05-18 18:08 ` wcohen at redhat dot com
2020-06-03 14:42 ` wcohen at redhat dot com [this message]
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