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From: "hjl.tools at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug libc/28153] [test] gmon/tst-gmon-gprof* may have a f3 line when built with ld.lld
Date: Fri, 30 Jul 2021 22:48:20 +0000 [thread overview]
Message-ID: <bug-28153-131-ewMnDd3B8S@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-28153-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=28153
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
ld.bfd generates:
0000000000401000 T _init
0000000000401090 T main
00000000004010b0 T _start
00000000004010e0 T __gmon_start__
0000000000401130 t deregister_tm_clones
0000000000401160 t register_tm_clones
00000000004011a0 t __do_global_dtors_aux
00000000004011d0 t frame_dummy
0000000000401250 T atexit
0000000000401264 T _fini
0000000000401271 T etext
ld.lld generates:
0000000000201ba0 T _start
0000000000201bd0 T __gmon_start__
0000000000201c20 t deregister_tm_clones
0000000000201c50 t register_tm_clones
0000000000201c90 t __do_global_dtors_aux
0000000000201cc0 t frame_dummy
0000000000201d40 T main
0000000000201d60 t atexit
0000000000201d74 t _init
0000000000201d90 t _fini
0000000000201e10 T etext
glibc assumes that _start is the lowest address for which we need o keep
profiling records. The newer GCC places main in .text.startup section.
Since _start is in .text section, ld.bfd places main below _start. Put
_start in .text.startup section makes f3 to show up with ld.bfd.
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next prev parent reply other threads:[~2021-07-30 22:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-28 21:10 [Bug libc/28153] New: " i at maskray dot me
2021-07-29 16:50 ` [Bug libc/28153] " hjl.tools at gmail dot com
2021-07-30 4:35 ` i at maskray dot me
2021-07-30 22:48 ` hjl.tools at gmail dot com [this message]
2021-07-31 4:23 ` hjl.tools at gmail dot com
2021-08-24 14:18 ` hjl.tools at gmail dot com
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