[Bug ld/27825] New: ld: -z unique-symbol behavior when .1 exists

[i at maskray dot me]

https://sourceware.org/bugzilla/show_bug.cgi?id=27825

            Bug ID: 27825
           Summary: ld: -z unique-symbol behavior when .1 exists
           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: ---

[Extracted from my reply to [PATCH v4 00/10] Function Granular KASLR in
January]

mkdir -p ./a
echo 'a: a.1: a.2: nop' > ./a/a.s
echo 'a: nop' > ./a/b.s
echo 'a: nop' > ./a/c.s
gcc -c a/a.s -o a/a.o
gcc -c a/b.s -o a/b.o
gcc -c a/c.s -o a/c.o
ld-new a/a.o a/b.o a/c.o -z unique-symbol

% readelf -Ws a.out

Symbol table '.symtab' contains 13 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS a.o
     2: 0000000000401000     0 NOTYPE  LOCAL  DEFAULT    2 a
     3: 0000000000401000     0 NOTYPE  LOCAL  DEFAULT    2 a.1
     4: 0000000000401000     0 NOTYPE  LOCAL  DEFAULT    2 a.2
     5: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS b.o
     6: 0000000000401001     0 NOTYPE  LOCAL  DEFAULT    2 a.1
     7: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS c.o
     8: 0000000000401002     0 NOTYPE  LOCAL  DEFAULT    2 a.2
     9: 0000000000000000     0 NOTYPE  GLOBAL DEFAULT  UND _start
    10: 0000000000402000     0 NOTYPE  GLOBAL DEFAULT    2 __bss_start
    11: 0000000000402000     0 NOTYPE  GLOBAL DEFAULT    2 _edata
    12: 0000000000402000     0 NOTYPE  GLOBAL DEFAULT    2 _end

Note that there are multiple a.1 and a.2, which are probably not desired.

-- 
You are receiving this mail because:
You are on the CC list for the bug.