http://sourceware.org/bugzilla/show_bug.cgi?id=13245
--- Comment #5 from Octoploid <cryptooctoploid at gmail dot com> 2011-10-02
13:01:38 UTC ---
What about the following naive patch?
diff --git a/gold/plugin.cc b/gold/plugin.cc
index b5880a1..d999254 100644
--- a/gold/plugin.cc
+++ b/gold/plugin.cc
@@ -889,10 +889,10 @@ Pluginobj::get_symbol_resolution_info(int nsyms,
res = LDPR_RESOLVED_EXEC;
else if (lsym->object()->pluginobj() == this)
{
- if (is_referenced_from_outside(lsym))
- res = LDPR_PREVAILING_DEF;
- else if (is_visible_from_outside(lsym))
+ if (is_visible_from_outside(lsym))
res = ldpr_prevailing_def_ironly_exp;
+ else if (is_referenced_from_outside(lsym))
+ res = LDPR_PREVAILING_DEF;
else
res = LDPR_PREVAILING_DEF_IRONLY;
}
@@ -910,10 +910,10 @@ Pluginobj::get_symbol_resolution_info(int nsyms,
res = LDPR_PREEMPTED_REG;
else if (lsym->object() == static_cast<const Object*>(this))
{
- if (is_referenced_from_outside(lsym))
- res = LDPR_PREVAILING_DEF;
- else if (is_visible_from_outside(lsym))
+ if (is_visible_from_outside(lsym))
res = ldpr_prevailing_def_ironly_exp;
+ else if (is_referenced_from_outside(lsym))
+ res = LDPR_PREVAILING_DEF;
else
res = LDPR_PREVAILING_DEF_IRONLY;
}
It fixes the issue:
% gcc t2.C --shared -o t2.so -fPIC -L ./ -lt -flto --save-temps
[Leaving LTRANS /tmp/ccHFvJ09.args]
[Leaving LTRANS t2.so.ltrans.out]
[Leaving LTRANS /tmp/ccwhzNf0.args]
[Leaving LTRANS t2.so.ltrans0.o]
% < t2.res
1
t2.o 3
164 e040fa02d1822684 PREVAILING_DEF_IRONLY_EXP _Z4testv
172 e040fa02d1822684 PREVAILING_DEF_IRONLY_EXP _Z5test2v
176 e040fa02d1822684 RESOLVED_DYN _Z5test3v
% nm -CD t2.so
w _Jv_RegisterClasses
w test()
000000000000056c T test2()
U test3()
0000000000001898 A __bss_start
w __cxa_finalize
w __gmon_start__
0000000000001898 A _edata
000000000000189c A _end
0000000000000584 T _fini
00000000000004a0 T _init
It also survived bootstrap-lto of gcc and an "-flto -fno-fat-lto-objects" build
of Firefox.
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