[Bug libc/15105] New: Extra PLT references with -Os

[Bug libc/15105] New: Extra PLT references with -Os

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15105

             Bug #: 15105
           Summary: Extra PLT references with -Os
           Product: glibc
           Version: 2.18
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: unassigned@sourceware.org
        ReportedBy: hjl.tools@gmail.com
                CC: drepper.fsp@gmail.com
    Classification: Unclassified


When compiling with -Os on x32, elf/check-localplt.out has

Extra PLT reference: libc.so: feof_unlocked
Extra PLT reference: libc.so: __sigaddset
Extra PLT reference: libc.so: strndup
Extra PLT reference: libc.so: gnu_dev_major
Extra PLT reference: libc.so: __sigdelset
Extra PLT reference: libc.so: strdup
Extra PLT reference: libc.so: __argz_next
Extra PLT reference: libc.so: __cmsg_nxthdr
Extra PLT reference: libc.so: gnu_dev_minor
Extra PLT reference: libc.so: gnu_dev_makedev
Extra PLT reference: libc.so: __bzero
Extra PLT reference: libc.so: __sigismember
Extra PLT reference: libc.so: putc_unlocked
Extra PLT reference: libc.so: __signbit
Extra PLT reference: libc.so: fputs
Extra PLT reference: libc.so: tolower
Extra PLT reference: libc.so: __signbitl
Extra PLT reference: libc.so: toupper
Extra PLT reference: libc.so: atoi
Extra PLT reference: libc.so: fputc_unlocked
Extra PLT reference: libc.so: ferror_unlocked
Extra PLT reference: libc.so: getc_unlocked
Extra PLT reference: libc.so: argz_next
Extra PLT reference: libm.so: __signbitf
Extra PLT reference: libm.so: __signbitl
Extra PLT reference: libm.so: __signbit

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[Bug libc/15105] Extra PLT references with -Os

[carlos at redhat dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15105

Carlos O'Donell <carlos at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |carlos at redhat dot com

--- Comment #1 from Carlos O'Donell <carlos at redhat dot com> 2013-02-06 18:00:30 UTC ---
H.J., Wow, that's a lot more references than I expected. Is it the same on x86
or x86-64?

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[Bug libc/15105] Extra PLT references with -Os

[hjl.tools at gmail dot com]

http://sourceware.org/bugzilla/show_bug.cgi?id=15105

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2013-02-06 21:27:47 UTC ---
x86-64 is the same as x32.  IA32 doesn't have

Extra PLT reference: libc.so: __bzero

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[Bug libc/15105] Extra PLT references with -Os

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15105

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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[Bug libc/15105] Extra PLT references with -Os

[2753595567 at qq dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15105

2753595567 at qq dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |2753595567 at qq dot com

--- Comment #20 from 2753595567 at qq dot com ---
Created attachment 13483
  --> https://sourceware.org/bugzilla/attachment.cgi?id=13483&action=edit
PLT

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[Bug libc/15105] Extra PLT references with -Os

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15105

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #13483|PLT.doc                     |-
           filename|                            |
  Attachment #13483|0                           |1
        is obsolete|                            |
  Attachment #13483|PLT                         |-
        description|                            |
  Attachment #13483|application/msword          |application/octet-strean
          mime type|                            |

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