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From: "luto at mit dot edu" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug symtab/17064] New: gdb's can't find Linux 3.16-rc1's vdso build-id
Date: Tue, 17 Jun 2014 22:53:00 -0000	[thread overview]
Message-ID: <bug-17064-4717@http.sourceware.org/bugzilla/> (raw)

https://sourceware.org/bugzilla/show_bug.cgi?id=17064

            Bug ID: 17064
           Summary: gdb's can't find Linux 3.16-rc1's vdso build-id
           Product: gdb
           Version: unknown
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: luto at mit dot edu

In Linux 3.16-rc1, the vdso is more heavily stripped than it is in prior
versions.  It has no section table*.  Nonetheless, gdb should still be able to
find its build-id, because its PT_NOTE phdr is in perfect order.  eu-readelf -n
works, but readelf -n does not.

(Actually, there's a complication: due to a workaround for a bug in Go, the
64-bit vdso currently has a fake section header that does not contain a note
section.  This causes even elfutils to be unable to find the ELF notes.  If
necessary, I can change that.)

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             reply	other threads:[~2014-06-17 22:53 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-17 22:53 luto at mit dot edu [this message]
2014-06-18  3:42 ` [Bug symtab/17064] " luto at mit dot edu
2014-06-18  7:22 ` nickc at redhat dot com
2014-06-18 10:23 ` palves at redhat dot com
2014-06-18 14:53 ` luto at mit dot edu
2014-06-18 14:55 ` luto at mit dot edu
2014-06-18 14:58 ` palves at redhat dot com
2014-06-18 15:01 ` luto at mit dot edu
2014-06-18 15:19 ` palves at redhat dot com
2014-06-18 15:29 ` luto at mit dot edu
2014-06-18 15:37 ` palves at redhat dot com
2014-06-18 19:56 ` luto at mit dot edu
2014-06-19 13:13 ` nickc at redhat dot com
2014-06-19 13:16 ` nickc at redhat dot com
2014-06-19 14:48 ` luto at mit dot edu

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