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[Bug ld/26980] New: Report "version node not found for symbol" for an ex


From: i at maskray dot me
Subject: [Bug ld/26980] New: Report "version node not found for symbol" for an executable
Date: Mon, 30 Nov 2020 01:18:26 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=26980

            Bug ID: 26980
           Summary: Report "version node not found for symbol" for an
                    executable
           Product: binutils
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: i at maskray dot me
  Target Milestone: ---

cat > ./def1.s <<eof                                                           
.globl foo                                                                      
.symver foo, foo@@@v1                                                          
foo:                                                                            
eof
gcc -c def1.s
gcc -shared -fpic -xc /dev/null -o b.so

The `version node not found for symbol` error is reported for a shared object,
but not for an executable.

% ld.bfd -shared def1.o
ld.bfd: a.out: version node not found for symbol foo@@v1
ld.bfd: failed to set dynamic section sizes: bad value

% ld.bfd -E def1.o b.so && readelf -W --dyn-syms a.out
ld.bfd: warning: cannot find entry symbol _start; defaulting to
0000000000401000

Symbol table '.dynsym' contains 6 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 0000000000402000     0 NOTYPE  GLOBAL DEFAULT    9 _edata
     2: 0000000000402000     0 NOTYPE  GLOBAL DEFAULT    9 _end
     3: 0000000000401000     0 NOTYPE  GLOBAL DEFAULT    8 foo@@v1
     4: 0000000000000000     0 OBJECT  GLOBAL DEFAULT  ABS v1
     5: 0000000000402000     0 NOTYPE  GLOBAL DEFAULT    9 __bss_start

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