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From: wdc@ATHENA.MIT.EDU (Bill Cattey)
Newsgroups: comp.soft-sys.andrew
Subject: A second step closer to plumber on AIX.
Message-ID: <Ub21t1AGG02=F6JO8x@athena.mit.edu>
Date: 2 Oct 90 04:57:37 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 55

I extracted calloc.o from libc.a and ran the 'dis' program on it.  This
helpful utility either provides assembly language disassembly of a .o
file or hangs in an infinite loop.  This time, it gave me a recognizable
.s file for calloc.o

Look at the two symbols:  %_Djyj.Q and%_Sjyj.Q as they appear in my calloc.s:


%_Djyj.Q:
        .long     %_Sjyj.Q
%_Sjyj.Q:
        .byte     0x40        /'@'
        .byte     0x28        /'('
        .byte     0x23        /'#'
        .byte     0x29        /')'
        .byte     0x63        /'c'
        .byte     0x61        /'a'
        .byte     0x6c        /'l'
        .byte     0x6c        /'l'
        .byte     0x6f        /'o'
        .byte     0x63        /'c'
        .byte     0x2e        /'.'
        .byte     0x63        /'c'
        .byte     0x9
        .byte     0x31        /'1'
        .byte     0x2e        /'.'
        .byte     0x31        /'1'
        .byte     0x30        /'0'
        .byte     0x9
        .byte     0x41        /'A'
        .byte     0x49        /'I'
        .byte     0x58        /'X'
        .byte     0x0
        .byte     0x0
        .byte     0x0

It's an identifier string generated by either the C compiler, the
loader, or the library archive program.

How nice.
And it's global so anyone can find it.
And it's global so getlist.awk wants it.
I wonder how the symbol name was generated...

Does anyone have a suggestion how we might modify getlist.awk to
carefully discard such symbols so that we don't force loading of
routines we're overriding?

-wdc

"If you could push this button and your wife (every PS/2) would
dissappear, would you do it?"

-Jack Lemon (with my amendment)
From "How to Murder your Wife"