[Qemu-devel] [Bug 1299190] [NEW] Access to /proc/self/exe in linux-user mode

[Yury Gribov]

Public bug reported:

This is based on a recent bug in GCC Bugzilla:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60681

It looks like libbacktrace (GCC runtime library used for obtaining stack
traces) uses /proc/self/exe for error reporting. Currently this is
mapped to qemu-arm which effectively disables libbacktrace on linux-
user.

It seems that QEMU already supports /proc/self/{maps,stat,auxv} so
addition of /proc/self/exe may be trivial.

** Affects: qemu
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1299190

Title:
  Access to /proc/self/exe in linux-user mode

Status in QEMU:
  New

Bug description:
  This is based on a recent bug in GCC Bugzilla:
  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60681

  It looks like libbacktrace (GCC runtime library used for obtaining
  stack traces) uses /proc/self/exe for error reporting. Currently this
  is mapped to qemu-arm which effectively disables libbacktrace on
  linux-user.

  It seems that QEMU already supports /proc/self/{maps,stat,auxv} so
  addition of /proc/self/exe may be trivial.

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