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* [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target)
@ 2011-12-13 3:46 d.g.gorbachev at gmail dot com
2011-12-13 11:07 ` [Bug target/51523] " rguenth at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-12-13 3:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
Bug #: 51523
Summary: LTO keeps unneeded functions (mingw32 target)
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: d.g.gorbachev@gmail.com
Created attachment 26067
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26067
Testcase
Unless compiling with `-fvisibility=hidden'. I think it's a bug and not
intended behavior. Otherwise, it should be documented.
See also `--export-all-symbols' bug: <http://sourceware.org/PR13494>.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
@ 2011-12-13 11:07 ` rguenth at gcc dot gnu.org
2011-12-13 11:15 ` ktietz at gcc dot gnu.org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-12-13 11:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |mingw32
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2011-12-13
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-13 11:05:31 UTC ---
I think you need -fwhole-program as mingw32 is not using a linker plugin(?)
If so, this works as intended and the bug is invalid.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
2011-12-13 11:07 ` [Bug target/51523] " rguenth at gcc dot gnu.org
@ 2011-12-13 11:15 ` ktietz at gcc dot gnu.org
2011-12-13 11:41 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: ktietz at gcc dot gnu.org @ 2011-12-13 11:15 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
Kai Tietz <ktietz at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
CC| |ktietz at gcc dot gnu.org
--- Comment #2 from Kai Tietz <ktietz at gcc dot gnu.org> 2011-12-13 11:14:38 UTC ---
mingw use linker-plugin and therefore bug is valid
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
2011-12-13 11:07 ` [Bug target/51523] " rguenth at gcc dot gnu.org
2011-12-13 11:15 ` ktietz at gcc dot gnu.org
@ 2011-12-13 11:41 ` rguenth at gcc dot gnu.org
2011-12-14 6:22 ` d.g.gorbachev at gmail dot com
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-12-13 11:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-13 11:30:28 UTC ---
Can you please attach the resolution file then? It's the file passed
to -fresolution=<filename> at WPA stage which should be preserved and
seen with -v -save-temps.
What linker version are you using?
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
` (2 preceding siblings ...)
2011-12-13 11:41 ` rguenth at gcc dot gnu.org
@ 2011-12-14 6:22 ` d.g.gorbachev at gmail dot com
2011-12-14 10:37 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-12-14 6:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
--- Comment #4 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-12-14 06:02:21 UTC ---
Created attachment 26075
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26075
Two resolution files
Here you are.
The resolution files differ depending on whether -fvisibility=hidden is used.
When I added a wrapper script around lto1, which changed
PREVAILING_DEF_IRONLY_EXP to PREVAILING_DEF_IRONLY, "baz" disappeared.
I use LD 2.22.51 (trunk).
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
` (3 preceding siblings ...)
2011-12-14 6:22 ` d.g.gorbachev at gmail dot com
@ 2011-12-14 10:37 ` rguenth at gcc dot gnu.org
2011-12-14 15:53 ` d.g.gorbachev at gmail dot com
2013-12-05 21:18 ` ktietz at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-12-14 10:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
--- Comment #5 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-12-14 10:36:15 UTC ---
This looks more like a linker bug which doesn't seem to account for the
contents of the .exp file. It works properly on linux targets with providing a
version script, -Wl,--version-script=t.map with t.map containing
FOO_1.0 {
global:
foo;
bar;
local:
*;
};
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
` (4 preceding siblings ...)
2011-12-14 10:37 ` rguenth at gcc dot gnu.org
@ 2011-12-14 15:53 ` d.g.gorbachev at gmail dot com
2013-12-05 21:18 ` ktietz at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: d.g.gorbachev at gmail dot com @ 2011-12-14 15:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
--- Comment #6 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> 2011-12-14 15:45:29 UTC ---
Filed a linker bug <http://sourceware.org/PR13497>.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug target/51523] LTO keeps unneeded functions (mingw32 target)
2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
` (5 preceding siblings ...)
2011-12-14 15:53 ` d.g.gorbachev at gmail dot com
@ 2013-12-05 21:18 ` ktietz at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: ktietz at gcc dot gnu.org @ 2013-12-05 21:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51523
Kai Tietz <ktietz at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |INVALID
--- Comment #7 from Kai Tietz <ktietz at gcc dot gnu.org> ---
Ok, due it is a linker-bug, I close this bug as invalid.
If it is shown later that issue is however caused by gcc, please re-open.
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2013-12-05 21:18 UTC | newest]
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2011-12-13 3:46 [Bug target/51523] New: LTO keeps unneeded functions (mingw32 target) d.g.gorbachev at gmail dot com
2011-12-13 11:07 ` [Bug target/51523] " rguenth at gcc dot gnu.org
2011-12-13 11:15 ` ktietz at gcc dot gnu.org
2011-12-13 11:41 ` rguenth at gcc dot gnu.org
2011-12-14 6:22 ` d.g.gorbachev at gmail dot com
2011-12-14 10:37 ` rguenth at gcc dot gnu.org
2011-12-14 15:53 ` d.g.gorbachev at gmail dot com
2013-12-05 21:18 ` ktietz at gcc dot gnu.org
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