Does the ELF gas support stabs like a.out does?

Does the ELF gas support stabs like a.out does?

[H.J. Lu]

Hi,

It seems the ELF gas doesn't support stabs like the a.out version
does. That piece code is used to put __init_misc () on the
__libc_subinit list. It doesn't work with the ELF gas.

Is there aother way to create a list using the ELF gas without
create a new subsection?

Thanks.


-- 
H.J. Lu
NYNEX Science and Technology, Inc.			hjl@nynexst.com
----
# gcc-aout -c foo.s
# nm foo.o
00000000 T __init_misc
00000000 - 00 0000   (4) __libc_subinit
# gcc-elf -c foo.s
# nm foo.o
00000000 T __init_misc
-----foo.s----
        .text
        .align 4
        .globl __init_misc
__init_misc:
        ret
        .stabs "__libc_subinit",23,0,0,__init_misc

Does the ELF gas support stabs like a.out does?

[Ian Lance Taylor]

   From: hjl@nynexst.com (H.J. Lu)
   Date: Wed, 23 Nov 94 21:40:24 EST

   It seems the ELF gas doesn't support stabs like the a.out version
   does. That piece code is used to put __init_misc () on the
   __libc_subinit list. It doesn't work with the ELF gas.

That is correct.  The symbol set features of a.out are not supported
in ELF.  I don't particularly like symbol sets, and, more importantly,
they can not be efficiently supported in the ELF linker.  All normal
uses of symbol sets can be handled using either weak symbols or
separate sections in ELF.

   Is there aother way to create a list using the ELF gas without
   create a new subsection?

No.  Creating a new section is the way to go.  glibc uses symbol sets
in various ways.  Roland McGrath and I have worked out how they will
be ported to ELF.  You may want to ask exactly what he plans to do in
glibc, and copy it.  Part of it is that the linker will automatically
define special symbols marking the start and end of any sections whose
names can be represented as C identifiers.  The symbols for section
SEC are named __start_SEC and __stop_SEC.

Ian