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[Bug gas/5900] ELF files with more than 65536 sections not handled corre
From: |
hjl dot tools at gmail dot com |
Subject: |
[Bug gas/5900] ELF files with more than 65536 sections not handled correctly. |
Date: |
10 Mar 2008 03:43:07 -0000 |
------- Additional Comments From hjl dot tools at gmail dot com 2008-03-10
03:43 -------
(In reply to comment #4)
> I think you need to qualify what you say. It is clearly true that the
> st_shndx
> field of a symbol is not a pure section index. Any value above LORESERVE is
> indeed reserved. The ELF ABI defines what to do for a symbol whose section
> index is larger than LORESERVE: put SHN_XINDEX in the st_shndx field, and put
> the real section index in the corresponding entry in the SHT_SYMTAB_SHNDX
> section. Note that the ABI does not say to store the section index plus 256;
> it
> says to store the section index.
>
> None of this has anything to do with the sh_link field in section header 0
> when
> the section string table is larger than LORESERVE. In that case, I think the
> ELF ABI says to put the section index in the sh_link field. It does not say
> to
> put the section index plus 256. Currently BFD is putting the section index
> plus
> 256. I think that is wrong.
I think it is up for debate. I can see the point for the current BFD
behavior. That is each section index is unique, including special
ones. When I say section index 0xfff2, there is no ambiguity about
which section it refers to. Would you mind raising your concern at
http://groups.google.com/group/generic-abi
> For the original test case, for a symbol defined in a section whose index is
> larger than LORESERVE, what does icc put in the SHT_SYMTAB_SHNDX section?
> Does
> it put the section index, or the section index plus 256? I believe that the
> ELF
> ABI says that it should store the former. BFD stores the latter. What does
> the
> BFD readelf -s report for those symbols in the object compiled by icc?
Would you mind downloading icc to check it out? I believe icc is free for
non-commercial use.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=5900
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- [Bug gas/5900] New: ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/07
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., hjl dot tools at gmail dot com, 2008/03/08
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/09
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., hjl dot tools at gmail dot com, 2008/03/09
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/09
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly.,
hjl dot tools at gmail dot com <=
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., hjl dot tools at gmail dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., hjl dot tools at gmail dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., hjl dot tools at gmail dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., hjl dot tools at gmail dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., ian at airs dot com, 2008/03/10
- [Bug gas/5900] ELF files with more than 65536 sections not handled correctly., amodra at bigpond dot net dot au, 2008/03/10