[Bug ld/27719] New: lang_mark_undefineds trashes symbols on generic linker ELF targets

[amodra at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=27719

            Bug ID: 27719
           Summary: lang_mark_undefineds trashes symbols on generic linker
                    ELF targets
           Product: binutils
           Version: 2.37 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: amodra at gmail dot com
  Target Milestone: ---

Segfaults are seen on pj-elf, s12z-elf, xgate-elf when running the ld testsuite
on 32-bit hosts.

A typical set of regressions:
xgate-elf  +FAIL: ld-elf/comm-data5
xgate-elf  +FAIL: ld-elf/empty
xgate-elf  +FAIL: ld-elf/empty2
xgate-elf  +FAIL: ld-elf/exclude3a
xgate-elf  +FAIL: ld-elf/pr14156a
xgate-elf  +FAIL: ld-elf/pr14156b
xgate-elf  +FAIL: ld-elf/stab
xgate-elf  +FAIL: ld-elf/var1
xgate-elf  +FAIL: sysroot-prefix common plain -Lpath, quoted
xgate-elf  +FAIL: sysroot-prefix common plain -Lpath, unquoted
xgate-elf  +FAIL: sysroot-prefix common full-path, quoted
xgate-elf  +FAIL: sysroot-prefix common full-path, unquoted
xgate-elf  +FAIL: sysroot-prefix common plain =-prefixed with empty, quoted
xgate-elf  +FAIL: sysroot-prefix common plain =-prefixed with empty, unquoted
xgate-elf  +FAIL: sysroot-prefix common plain $SYSROOT-prefixed with empty,
quoted
xgate-elf  +FAIL: sysroot-prefix common plain $SYSROOT-prefixed with empty,
unquoted
xgate-elf  +FAIL: sysroot-prefix common plain =-prefixed -Lpath, quoted
xgate-elf  +FAIL: sysroot-prefix common plain =-prefixed -Lpath, unquoted
xgate-elf  +FAIL: sysroot-prefix common plain $SYSROOT-prefixed -Lpath, quoted
xgate-elf  +FAIL: sysroot-prefix common plain $SYSROOT-prefixed -Lpath,
unquoted
xgate-elf  +FAIL: sysroot-prefix common full-path =-prefixed without, quoted
xgate-elf  +FAIL: sysroot-prefix common full-path =-prefixed without, unquoted
xgate-elf  +FAIL: sysroot-prefix common full-path $SYSROOT-prefixed without,
quoted
xgate-elf  +FAIL: sysroot-prefix common full-path $SYSROOT-prefixed without,
unquoted

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