On Tue, 29 Mar 2005, Amir Binyamini wrote:
> I do not have , under/usr/lib/gcc-lib/, a crt1.o (also not a symlink to
> /usr/lib).
> So I used the /usr/lib/crt1.o.
this is exactly what i wrote ('strace' told me this short path in its old
twisted way ;) )
> I use gcc (GCC) 3.2.2on Red Hat 9 ; the new glibc libs I had built is in
> /work/myglibc/lib
> when trying, as I understoof from your suggestion,to compile with
> gcc -static-nostdlib -L/work/myglibc/lib -lc /usr/lib/crt1.o test.c -o
> test
> I got:
> usr/lib/crt1.o(.text+0xc): In function `_start':
> ../sysdeps/i386/elf/start.S:71: undefined reference to `__libc_csu_fini'
> /usr/lib/crt1.o(.text+0x11):../sysdeps/i386/elf/start.S:72: undefined
> reference
> to `__libc_csu_init'
> /usr/lib/crt1.o(.text+0x1d):../sysdeps/i386/elf/start.S:81: undefined
> reference
> to `__libc_start_main'
> collect2: ld returned 1 exit status
ok, this is a start...
> Probing and Googling a bit showed that maybe it should get these symbol from
> libc_nonshared , so I tried
> gcc -static-nostdlib -L/work/myglibc/lib -lc -lc_nonshared /usr/lib/crt1.o
> test.c
ah, getting even better...
> and (strangely) got the same error.
1. never ever ever specify link flags before specifying the list of object
files. don't ask me why - perhaps this is just a habbit.
2. it looks like there's a need to add '-lgcc' after '-lc_nonshared', gcc
being libgcc.a found in your compiler's directory.
3. to /usr/lib/crt1.o there's a need to add /usr/lib/crti.o, and for
/usr/lib/crtn.o .
4. gcc itself (at least my very old version) also links files named
'crtbegin.o' and 'crtend.o' - no idea what they are for - perhaps to
initialize things related to global functoins in libgcc...
and i'm having the easy life - i'm just trying to get gcc -static
--nostdinc to work with the same glibc that i have on my system.
so, give a try(*) with these extras, and see what gives:
gcc -static -nostdlib test.c /usr/lib/crt1.o /usr/lib/crti.o \
/usr/lib/crtn.o \
/usr/lib/gcc-lib/i386-redhat-linux/2.96/crtbegin.o \
/usr/lib/gcc-lib/i386-redhat-linux/2.96/crtend.o \
-L/usr/lib -lc -lc_nonshared -lgcc -o test
(*) NOTE: replace /usr/lib/gcc-lib/i386-redhat-linux/2.96 to the matching
path of the gcc library on your machine.
by the way, you chose a dangerous name, 'test' - i assume you're running
it as './test', to make sure what runs is your binary, and not
/usr/bin/test (i'm writing this mostly for the sake of other readers,
who might try doing your little stun in the future based on a logging of
this thread :0 ).
--
guy
"For world domination - press 1,
or dial 0, and please hold, for the creator." -- nob o. dy
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