Hi, another question:
I am trying to compile a kernel module for 2.2.19, and I am getting a
weird warning from assembler:
/tmp/ccTe0mDh.s: Assembler messages:
/tmp/ccTe0mDh.s:9: Warning: Ignoring changed section attributes for .modinfo
This happens for *any* code, including trivial "hello world". It
happens on at least two machines (very similar systems though),
whether actually running the custom-compiled 2.2.19 or not (running
2.4.9-31 from Red Hat). Nor does it depend on the compilation flags
that I use (e.g. optimization).
I have not found anything useful in Google (quite a few people asked
but got no answers) or in the various module-writing docs. Is it some
mismatch between gcc and as versions? Can anyone point me in the
right direction?
There are no .modinfo files anywhere on the system (Linux 2.4.9-31
i686), touching .modinfo in the current directory does not help.
There are /boot/module-info-2.4* files for the kernels installed
from RPMs, but not for the custom-compiled 2.2.19. I suspect this
is Red Hat's trickery. Is it related?
Is it related to modinfo(8)? I didn't find anything useful in the
Documentation directory.
The full compile log follows. The compilation actually succeeds.
/usr/bin/kgcc -v -Wall -O3 -nostdinc -isystem /usr/src/linux-2.2.19/include -isystem
/usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/include -I../include -DMODULE
-D__KERNEL__ -DLINUX -c -o foo.o foo.c
Reading specs from /usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/specs
gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)
/usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/cpp -lang-c -nostdinc -v
-I../include -undef -D__GNUC__=2 -D__GNUC_MINOR__=91 -D__ELF__ -Dunix -Di386
-D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__i386__ -D__linux__ -D__unix
-D__i386 -D__linux -Asystem(posix) -D__OPTIMIZE__ -Wall -Asystem(unix) -Acpu(i386)
-Amachine(i386) -Di386 -D__i386 -D__i386__ -D__tune_i386__ -DMODULE -D__KERNEL__
-DLINUX -isystem /usr/src/linux-2.2.19/include -isystem
/usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/include foo.c /tmp/ccDHujkf.i
GNU CPP version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
../include
/usr/src/linux-2.2.19/include
/usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/include
End of search list.
/usr/lib/gcc-lib/i386-glibc21-linux/egcs-2.91.66/cc1 /tmp/ccDHujkf.i -quiet -dumpbase
foo.c -O3 -Wall -version -o /tmp/ccTe0mDh.s
GNU C version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release) (i386-glibc21-linux)
compiled by GNU C version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release).
as -V -Qy -o foo.o /tmp/ccTe0mDh.s
GNU assembler version 2.11.90.0.8 (i386-redhat-linux) using BFD version 2.11.90.0.8
/tmp/ccTe0mDh.s: Assembler messages:
/tmp/ccTe0mDh.s:9: Warning: Ignoring changed section attributes for .modinfo
--
Oleg Goldshmidt | [EMAIL PROTECTED]
[Lisp] is the only computer language that is beautiful.
- Neal Stephenson
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