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Groups > linux.debian.kernel > #56160
| From | Dodji Seketeli <dodji@seketeli.org> |
|---|---|
| Newsgroups | linux.debian.kernel, linux.kernel |
| Subject | Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm |
| Date | 2016-12-14 11:20 +0100 |
| Message-ID | <sOevU-4RP-27@gated-at.bofh.it> (permalink) |
| References | (7 earlier) <sMCiZ-Cg-9@gated-at.bofh.it> <sO4db-71b-3@gated-at.bofh.it> <sOdJw-4BA-25@gated-at.bofh.it> <sOdTb-4EN-7@gated-at.bofh.it> <sOecx-4L4-1@gated-at.bofh.it> |
| Organization | Me, myself and I |
Cross-posted to 2 groups.
Dodji Seketeli <dodji@seketeli.org> a écrit:
Grr, I did paste the wrong content of t1.c and t2.c in my last message sorry.
Here are the correct ones:
$ cat t1.c
struct s1;
struct s2 {
int i;
};
struct s3 {
struct s1 *ptr1;
struct s2 *ptr2;
};
void foo(struct s3* s __attribute__((unused)))
{
}
$ cat t2.c
struct s1 {
int j;
};
struct s2;
struct s3 {
struct s1 *ptr1;
struct s2 *ptr2;
};
void foo(struct s3* s __attribute__((unused)))
{
}
$ gcc -g -c t1.c
$ gcc -g -c t2.c
$ abidiff t1.o t2.o
$
The rest of my previous message still applies :-)
> So, as you see here, abidiff considers t1.o and t2.o has having the same
> ABI, so it considers the two foo functions to be equivalent.
>
>> The types are the same, but their visibility in the different
>> compilation units differs.
>
> I see, for genksyms, the order of declarations matters, especially when
> forward declarations are involved.
>
> Libabigail does a "whole binary" analysis of types.
>
> So, consider the point of use of the type 'struct s1*'. Even if 'struct
> s' is just forward-declared at that point, the declaration of struct s1
> is "resolved" to its definition. Even if the definition comes later in
> the binary.
>
> In other words, if struct s1 is defined in the binary, you'll never have
> that "struct s1 {UNKNOWN} *ptr1;" that you see in genksyms's
> representation.
Thanks.
--
Dodji
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Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-29 02:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-11-29 03:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-11-29 10:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 05:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 14:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ingo Molnar <mingo@kernel.org> - 2016-11-29 14:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 15:30 +0100
[PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 15:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 16:50 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-11-29 17:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-29 21:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 22:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-30 20:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ben Hutchings <ben@decadent.org.uk> - 2016-11-30 22:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 03:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-01 03:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 05:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Hannes Frederic Sowa <hannes@stressinduktion.org> - 2016-12-02 16:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 05:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ian Campbell <ijc@hellion.org.uk> - 2016-12-09 16:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-10 14:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-12 05:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ian Campbell <ijc@hellion.org.uk> - 2016-12-12 10:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Don Zickus <dzickus@redhat.com> - 2016-12-14 19:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-13 02:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-14 00:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 10:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-14 10:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-14 11:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-14 11:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Don Zickus <dzickus@redhat.com> - 2016-12-01 05:50 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 05:50 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Don Zickus <dzickus@redhat.com> - 2016-12-01 16:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Don Zickus <dzickus@redhat.com> - 2016-12-01 17:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-01 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Don Zickus <dzickus@redhat.com> - 2016-12-01 20:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Christoph Hellwig <hch@infradead.org> - 2016-12-01 17:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 05:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-09 09:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 09:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-09 16:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-09 17:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-12-09 17:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-12 11:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-13 08:50 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-14 15:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 03:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 12:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 13:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 14:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-15 15:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Hannes Frederic Sowa <hannes@redhat.com> - 2016-12-15 16:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-15 15:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Don Zickus <dzickus@redhat.com> - 2016-12-09 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-01 12:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 12:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Stanislav Kozina <skozina@redhat.com> - 2016-12-01 13:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Nicholas Piggin <npiggin@gmail.com> - 2016-12-01 14:00 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Dodji Seketeli <dodji@seketeli.org> - 2016-12-01 16:50 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-11-29 18:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 18:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-11-29 18:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Arnd Bergmann <arnd@arndb.de> - 2016-12-01 15:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-12-01 17:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-01 19:50 +0100
Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Geert Uytterhoeven <geert@linux-m68k.org> - 2016-12-02 14:00 +0100
Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Arnd Bergmann <arnd@arndb.de> - 2016-12-02 16:10 +0100
Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Adam Borowski <kilobyte@angband.pl> - 2016-12-02 16:40 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-02 18:30 +0100
Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Ben Hutchings <ben@decadent.org.uk> - 2016-12-03 05:40 +0100
Re: [RFC, PATCH, v3.9] default exported asm symbols to zero Arnd Bergmann <arnd@arndb.de> - 2016-12-03 12:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Alan Modra <amodra@gmail.com> - 2016-12-04 09:20 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Linus Torvalds <torvalds@linux-foundation.org> - 2016-12-04 22:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Michal Marek <mmarek@suse.com> - 2016-11-29 22:50 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-02 03:10 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Adam Borowski <kilobyte@angband.pl> - 2016-12-02 12:30 +0100
Re: [PATCH] x86/kbuild: enable modversions for symbols exported from asm Ben Hutchings <ben@decadent.org.uk> - 2016-12-02 16:10 +0100
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