[Bug gold/28195] New: gold: Spurious "warning: wildcard match appears in both version"

[i at maskray dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=28195

            Bug ID: 28195
           Summary: gold: Spurious "warning: wildcard match appears in
                    both version"
           Product: binutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gold
          Assignee: ccoutant at gmail dot com
          Reporter: i at maskray dot me
                CC: ian at airs dot com
  Target Milestone: ---

cat > ./a.s <<eof
.symver aa_2_29, aa@GLIBC_2.29
.globl aa_2_29
aa_2_29:
  nop

.symver bb_2_30, aa@GLIBC_2.30
.globl bb_2_30
aa_2_30:
  nop
eof
cat > ./a.ver <<eof
GLIBC_2.29 { local: *; };
GLIBC_2.30 { local: *; };
eof
cc -c a.s


% gold --version-script a.ver a.o -shared
gold: warning: wildcard match appears in both version 'GLIBC_2.29' and
'GLIBC_2.30' in script

The example is derived from glibc. I think the warning should be suppressed:
GLIBC_2.29 { global: xxx; yyy; local: *; };  can be used to keep xxx@GLIBC_2.29
yyy@GLIBC_2.29 while localizing other *@GLIBC_2.29 non-default version symbols.
It's perfectly fine for multiple version nodes to localize their non-default
version symbols.

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