[Bug inline-asm/33864] New: gcc 4.3 svn fails to compile glibc 2.7's crti.o

[Bug inline-asm/33864] New: gcc 4.3 svn fails to compile glibc 2.7's crti.o

[bero at arklinux dot org]

../sysdeps/generic/initfini.c: Assembler messages:
../sysdeps/generic/initfini.c:149: Error: undefined symbol `.LCFI0' in
operation
../sysdeps/generic/initfini.c:149: Error: undefined symbol `.LFB10' in
operation
../sysdeps/generic/initfini.c:155: Error: undefined symbol `.LCFI1' in
operation
../sysdeps/generic/initfini.c:155: Error: undefined symbol `.LCFI0' in
operation
../sysdeps/generic/initfini.c:146: Error: can't resolve `.LFE10' {*UND*
section} - `.LFB10' {*UND* section}
../sysdeps/generic/initfini.c:165: Error: can't resolve `.LFE12' {*UND*
section} - `.LFB12' {.init section}
../sysdeps/generic/initfini.c:188: Error: can't resolve `.LFE13' {*UND*
section} - `.LFB13' {.fini section}


-- 
           Summary: gcc 4.3 svn fails to compile glibc 2.7's crti.o
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: inline-asm
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bero at arklinux dot org
 GCC build triplet: i586-pc-linux-gnu
  GCC host triplet: i586-pc-linux-gnu
GCC target triplet: i586-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33864

[Bug inline-asm/33864] gcc 4.3 svn fails to compile glibc 2.7's crti.o

[bero at arklinux dot org]

------- Comment #1 from bero at arklinux dot org  2007-10-22 21:04 -------
Created an attachment (id=14393)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14393&action=view)
Preprocessor output


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33864

[Bug other/33864] gcc 4.3 svn fails to compile glibc 2.7's crti.o

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-10-22 21:41 -------
And why do you think this is a bug in GCC?
The whole source is preprocessed assembly.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|inline-asm                  |other


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33864

[Bug other/33864] gcc 4.3 svn fails to compile glibc 2.7's crti.o

[bero at arklinux dot org]

------- Comment #3 from bero at arklinux dot org  2007-10-22 21:59 -------
The problem goes away by not using the -fasynchronous-unwind-tables compiler
flag.

That seems to point at a gcc bug because the code and/or ld shouldn't care, but
I might be wrong - I haven't had enough time to really figure out gcc
internals.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33864

[Bug other/33864] gcc 4.3 svn fails to compile glibc 2.7's crti.o

[jsm28 at gcc dot gnu dot org]

------- Comment #4 from jsm28 at gcc dot gnu dot org  2010-05-22 17:38 -------
Not a GCC bug; glibc is manipulating .s output from GCC in ways that
aren't expected to work with all possible options.  FWIW, EGLIBC has a fix
to allow it to build for x86 when unwind tables are enabled by default:

2009-06-25  Kazu Hirata  <kazu@codesourcery.com>

        * sysdeps/i386/Makefile (CFLAGS-initfini.s): Add
        -fno-asynchronous-unwind-tables and -fno-unwind-tables.
        (CFLAGS-pt-initfini.s): New.


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33864