[PATCH 0/3] Fix for PR 17808 and some related changes

[Andreas Arnez <arnez at linux dot vnet dot ibm dot com>]

As seen in PR 17808, a test case with a forged (invalid) core file can
crash GDB with an assertion failure when a register section has the
wrong size.  This patch series is about improving GDB's behavior in
such cases: Patch 1 fixes the reported problem for i386 as well as for
other targets; patch 2 avoids out-of-bounds accesses when an x86
".reg-xstate" section is too short, and patch 3 adds a warning when a
core file register section is larger than expected.

This is based on the "lazy approach" suggested here:

  https://sourceware.org/ml/gdb-patches/2015-01/msg00229.html

OK to apply?


Andreas Arnez (3):
  [PR corefiles/17808] Fix internal error when core file section is too
    big
  x86: Use correct .reg-xstate section size
  Warn if core file register section is larger than expected

 gdb/alphanbsd-tdep.c     |  4 +++-
 gdb/amd64-linux-tdep.c   |  2 +-
 gdb/amd64-tdep.c         |  4 ++--
 gdb/armbsd-tdep.c        |  4 +++-
 gdb/corelow.c            |  5 +++++
 gdb/gdbarch.h            |  6 ++++++
 gdb/gdbarch.sh           |  6 ++++++
 gdb/hppa-hpux-tdep.c     |  4 +++-
 gdb/hppaobsd-tdep.c      |  4 +++-
 gdb/i386-linux-tdep.c    |  3 +--
 gdb/i386-tdep.c          |  8 ++++----
 gdb/m68kbsd-tdep.c       |  4 +++-
 gdb/mips-linux-tdep.c    | 16 ++++++++--------
 gdb/mipsnbsd-tdep.c      |  4 +++-
 gdb/mn10300-linux-tdep.c |  8 ++++----
 gdb/regset.h             |  7 +++++++
 16 files changed, 62 insertions(+), 27 deletions(-)

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1.8.4.2