[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975 Mikhail Matrosov changed: What|Removed |Added CC||mikhail.matrosov at gmail dot com --- Comment #25 from Mikhail Matrosov --- Guys, could you please summarize the thread? Is this warning safe to ignore? Is it going to be fixed? -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975 --- Comment #24 from H.J. Lu --- (In reply to dilyan.palau...@aegee.org from comment #23) > Can I delete https://mail.aegee.org/dpa/pr25975/pr-gold-25975.tar.xz ? Yes. -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975 --- Comment #23 from dilyan.palauzov at aegee dot org --- Can I delete https://mail.aegee.org/dpa/pr25975/pr-gold-25975.tar.xz ? -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975
--- Comment #22 from Fangrui Song ---
(In reply to H.J. Lu from comment #20)
> // If the symbol was forced dynamic in a --dynamic-list file
> // or an --export-dynamic-symbol option, add it.
> if (!this->is_from_dynobj()
> && (parameters->options().in_dynamic_list(this->name())
> || parameters->options().is_export_dynamic_symbol(this->name(
> {
> if (!this->is_forced_local())
> return true;
> gold_warning(_("Cannot export local symbol '%s'"),
>this->demangled_name().c_str());
> return false;
> }
>
> I don't think the warning is necessary when it is a wild card match.
Agreed. clang -fsanitize=address uses --dynamic-list when
libclang_rt.asan-x86_64.a.syms exists. This behavior has been there for a long
time, since 3.3
(https://github.com/llvm/llvm-project/commit/f3e624ca73b007552554b31358f4abde9eb2d3b7
). So the gold warning may be there for a long time as well.
% readelf -Ws lib/clang/11.0.0/lib/linux/libclang_rt.asan-x86_64.a | grep
__asan_extra_spill_area
251: 48 FUNCGLOBAL HIDDEN 162
__asan_extra_spill_area
6: 0 NOTYPE GLOBAL DEFAULT UND
__asan_extra_spill_area
The spurious warning should just be deleted, along with msgid "Cannot export
local symbol '%s'" in various .po files.
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[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975 --- Comment #21 from dilyan.palauzov at aegee dot org --- > Do you have __asan_extra_spill_area in ./libclang_rt.asan-x86_64.a.syms? If I do not have __asan_extra_spill_area in ./libclang_rt.asan-x86_64.a.syms does this mean, that clang/rt was self-compiled anyhow wrong? -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975
--- Comment #20 from H.J. Lu ---
// If the symbol was forced dynamic in a --dynamic-list file
// or an --export-dynamic-symbol option, add it.
if (!this->is_from_dynobj()
&& (parameters->options().in_dynamic_list(this->name())
|| parameters->options().is_export_dynamic_symbol(this->name(
{
if (!this->is_forced_local())
return true;
gold_warning(_("Cannot export local symbol '%s'"),
this->demangled_name().c_str());
return false;
}
I don't think the warning is necessary when it is a wild card match.
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[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975 H.J. Lu changed: What|Removed |Added Last reconfirmed||2020-06-27 Status|UNCONFIRMED |NEW Ever confirmed|0 |1 --- Comment #19 from H.J. Lu --- (In reply to H.J. Lu from comment #18) > (In reply to dilyan.palau...@aegee.org from comment #17) > > libclang_rt.asan-x86_64.a.syms, included in > > https://mail.aegee.org/dpa/pr25975/pr-gold-25975.tar.xz, does not contain > > “spill". > > I got > > > [hjl@gnu-cfl-2 pr-gold-25975]$ ld.bfd -Llib64 --hash-style=both > --eh-frame-hdr -m elf_x86_64 -dynamic-linker ./ld-linux-x86-64.so.2 -o a.out > ./crt1.o ./crti.o ./crtbegin.o --whole-archive ./libclang_rt.asan-x86_64.a > --no-whole-archive --dynamic-list=./libclang_rt.asan-x86_64.a.syms i.o > --no-as-needed -lpthread -lrt -lm -ldl -lgcc --as-needed -lgcc_s > --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed ./crtend.o > ./crtn.o > [hjl@gnu-cfl-2 pr-gold-25975]$ ld.gold -Llib64 --hash-style=both > --eh-frame-hdr -m elf_x86_64 -dynamic-linker ./ld-linux-x86-64.so.2 -o a.out > ./crt1.o ./crti.o ./crtbegin.o --whole-archive ./libclang_rt.asan-x86_64.a > --no-whole-archive --dynamic-list=./libclang_rt.asan-x86_64.a.syms i.o > --no-as-needed -lpthread -lrt -lm -ldl -lgcc --as-needed -lgcc_s > --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed ./crtend.o > ./crtn.o > ld.gold: warning: Cannot export local symbol '__asan_extra_spill_area' > [hjl@gnu-cfl-2 pr-gold-25975]$ > > It looks like a gold --dynamic-list bug. The problem is _Unwind_RaiseException; __asan_*; ^ This matches __asan_extra_spill_area. -- You are receiving this mail because: You are on the CC list for the bug.
[Bug gold/25975] --dynamic-list doesn't work correctly
https://sourceware.org/bugzilla/show_bug.cgi?id=25975 H.J. Lu changed: What|Removed |Added CC||i at maskray dot me Summary|clang -fsanitze=address |--dynamic-list doesn't work |prints warning only with|correctly |gold| --- Comment #18 from H.J. Lu --- (In reply to dilyan.palau...@aegee.org from comment #17) > libclang_rt.asan-x86_64.a.syms, included in > https://mail.aegee.org/dpa/pr25975/pr-gold-25975.tar.xz, does not contain > “spill". I got [hjl@gnu-cfl-2 pr-gold-25975]$ ld.bfd -Llib64 --hash-style=both --eh-frame-hdr -m elf_x86_64 -dynamic-linker ./ld-linux-x86-64.so.2 -o a.out ./crt1.o ./crti.o ./crtbegin.o --whole-archive ./libclang_rt.asan-x86_64.a --no-whole-archive --dynamic-list=./libclang_rt.asan-x86_64.a.syms i.o --no-as-needed -lpthread -lrt -lm -ldl -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed ./crtend.o ./crtn.o [hjl@gnu-cfl-2 pr-gold-25975]$ ld.gold -Llib64 --hash-style=both --eh-frame-hdr -m elf_x86_64 -dynamic-linker ./ld-linux-x86-64.so.2 -o a.out ./crt1.o ./crti.o ./crtbegin.o --whole-archive ./libclang_rt.asan-x86_64.a --no-whole-archive --dynamic-list=./libclang_rt.asan-x86_64.a.syms i.o --no-as-needed -lpthread -lrt -lm -ldl -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed ./crtend.o ./crtn.o ld.gold: warning: Cannot export local symbol '__asan_extra_spill_area' [hjl@gnu-cfl-2 pr-gold-25975]$ It looks like a gold --dynamic-list bug. -- You are receiving this mail because: You are on the CC list for the bug.
