http://llvm.org/bugs/show_bug.cgi?id=17209
Bug ID: 17209
Summary: ObjectFileELF::GetModuleSpecifications overrides OS
and Vendor name with those from host
Product: lldb
Version: unspecified
Hardware: PC
OS: FreeBSD
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: lldb-dev@cs.uiuc.edu
Reporter: ema...@freebsd.org
Classification: Unclassified
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:
http://refspecs.linuxfoundation.org/LSB_1.2.0/gLSB/noteabitag.html
Note that the build ID page reports that "the name is not normative, and the
section can be merged with other SHT_NOTE sections."
http://fedoraproject.org/wiki/Releases/FeatureBuildId
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
http://www.netbsd.org/docs/kernel/elf-notes.html
** OpenBSD **
Name: OpenBSD
Type: NT_OPENBSD_IDENT (1)
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