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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - ObjectFileELF::GetModuleSpecifications overrides OS and Vendor name with those from host"
href="http://llvm.org/bugs/show_bug.cgi?id=17209">17209</a>
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<th>Summary</th>
<td>ObjectFileELF::GetModuleSpecifications overrides OS and Vendor name with those from host
</td>
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<th>Product</th>
<td>lldb
</td>
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<th>Version</th>
<td>unspecified
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>FreeBSD
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>All Bugs
</td>
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<th>Assignee</th>
<td>lldb-dev@cs.uiuc.edu
</td>
</tr>
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<th>Reporter</th>
<td>emaste@freebsd.org
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
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<p>
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<pre>spec.GetArchitecture().GetTriple().setOSName
(Host::GetOSString().GetCString());
spec.GetArchitecture().GetTriple().setVendorName(Host::GetVendorString().GetCString());
We would like to be able to open Linux and FreeBSD core files on any of Linux,
FreeBSD, and OS X.
Michael provided a reference for the GNU ABI tag already:
<a href="http://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html">http://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html</a>
Note that the build ID page reports that "the name is not normative, and the
section can be merged with other SHT_NOTE sections."
<a href="http://fedoraproject.org/wiki/Releases/FeatureBuildId">http://fedoraproject.org/wiki/Releases/FeatureBuildId</a>
We should apply the same logic for ABI tag parsing, using the note name and not
relying on the section name.
We can fall back to using the Host's OS/Vendor if the note is not found.
A handy reference:
** Linux **
Name: GNU
Type: NT_GNU_ABI_TAG (1)
Desc: Four 4-byte words, as follows
OS (0=linux)
major version (minimum compatible kernel version)
minor version
dot version
** FreeBSD **
Name: FreeBSD
Type: NT_FREEBSD_ABI_TAG (1)
Desc: One 4-byte word
** NetBSD **
Name: NetBSD
Type: NT_NETBSD_IDENT(?) (1)
Desc: One 4-byte word containing the version constant
<a href="http://www.netbsd.org/docs/kernel/elf-notes.html">http://www.netbsd.org/docs/kernel/elf-notes.html</a>
** OpenBSD **
Name: OpenBSD
Type: NT_OPENBSD_IDENT (1)</pre>
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