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SubjectRe: Assembler warnings
Date
On Mon, 20 Nov 2000 22:11:04 -0600, 
Matthew Vanecek <linux4us@home.com> wrote:
>Hi. I see these warnings while compiling modules in 2.4.0-test10. This
>is with RH 7.0's kgcc (why-oh-why did they base their system on
>2.96!!). It doesn't seem to break anything--I'm just curious as to what
>the warnings signify.
>
>{standard input}: Assembler messages:
>{standard input}:8: Warning: Ignoring changed section attributes for
>.modinfo

Firstly you should not be compiling the kernel with gcc 2.96, you
should be using kgcc. Search recent l-k archives for kgcc.

Secondly that is a warning that section .modinfo was initially created
without the allocation bit but later usage of the section implies that
the allocation bit should be set. Creating .modinfo as non-allocated
was an old kludge to stop the module descriptive data being loaded into
memory as part of the module. modutils 2.3.19 onwards force .modinfo
to be non-allocated (and hence not loaded into kernel memory), even if
the allocate bit is set. Feel free to try this patch, it is not urgent
so I have not sent it to Linus "code freeze" Torvalds yet.

Against 2.4.0-test11-pre6, it might fit 2.4.0-test11.

Index: 0-test11-pre6.1/include/linux/module.h
--- 0-test11-pre6.1/include/linux/module.h Sun, 12 Nov 2000 14:59:01 +1100 kaos (linux-2.4/W/33_module.h 1.1.2.1.2.1.2.1.2.1.1.3 644)
+++ 0-test11-pre6.1(w)/include/linux/module.h Tue, 21 Nov 2000 15:46:58 +1100 kaos (linux-2.4/W/33_module.h 1.1.2.1.2.1.2.1.2.1.1.3 644)
@@ -247,12 +247,6 @@ static const struct gtype##_id * __modul
__attribute__ ((unused)) = name
#define MODULE_DEVICE_TABLE(type,name) \
MODULE_GENERIC_TABLE(type##_device,name)
-/* not put to .modinfo section to avoid section type conflicts */
-
-/* The attributes of a section are set the first time the section is
- seen; we want .modinfo to not be allocated. */
-
-__asm__(".section .modinfo\n\t.previous");

/* Define the module variable, and usage macros. */
extern struct module __this_module;
-
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