[PATCH v2 0/3] Core file support for Aarch64 SVE

[Alan Hayward <alan.hayward@arm.com>]

Support both the reading and writing of core files on aarch64 SVE.

SVE core files are doumented here:
https://github.com/torvalds/linux/blob/master/Documentation/arm64/sve.txt
* A NT_ARM_SVE note will be added to each coredump for each thread of the
  dumped process.  The contents will be equivalent to the data that would have
  been read if a PTRACE_GETREGSET of NT_ARM_SVE were executed for each thread
  when the coredump was generated.

The first patch adds support allowing writing of core files for targets with
variable length core files. Currently all targets with variable length core
files do not allow the creation of core files.

The second patch detects SVE state in a core file.
The final patch adds the supply/collect functions for core file parsing.

Checked with make check on x86 (all targets) and aarch64.
Generated core files on SVE emulator both from gdb "generate-core-file"
command and a segfault. Loaded these back into gdb.


Alan Hayward (3):
  Add min size to regset section iterations
  Detect SVE when reading aarch64 core files
  Parse SVE registers in aarch64 core file reading/writing

 gdb/aarch64-fbsd-tdep.c  |   8 +-
 gdb/aarch64-linux-tdep.c | 190 +++++++++++++++++++++++++++++++++++++++++++++--
 gdb/alpha-linux-tdep.c   |   4 +-
 gdb/alpha-nbsd-tdep.c    |   6 +-
 gdb/amd64-fbsd-tdep.c    |   8 +-
 gdb/amd64-linux-tdep.c   |   6 +-
 gdb/arm-bsd-tdep.c       |   6 +-
 gdb/arm-fbsd-tdep.c      |   7 +-
 gdb/arm-linux-tdep.c     |  11 +--
 gdb/corelow.c            |  27 ++++---
 gdb/fbsd-tdep.c          |   2 +-
 gdb/frv-linux-tdep.c     |   8 +-
 gdb/gdbarch.h            |   2 +-
 gdb/gdbarch.sh           |   2 +-
 gdb/hppa-linux-tdep.c    |   6 +-
 gdb/hppa-nbsd-tdep.c     |   3 +-
 gdb/hppa-obsd-tdep.c     |   6 +-
 gdb/i386-fbsd-tdep.c     |  11 ++-
 gdb/i386-linux-tdep.c    |   9 ++-
 gdb/i386-tdep.c          |   6 +-
 gdb/ia64-linux-tdep.c    |   6 +-
 gdb/linux-tdep.c         |   2 +-
 gdb/m32r-linux-tdep.c    |   3 +-
 gdb/m68k-bsd-tdep.c      |   6 +-
 gdb/m68k-linux-tdep.c    |   6 +-
 gdb/mips-fbsd-tdep.c     |   8 +-
 gdb/mips-linux-tdep.c    |  14 ++--
 gdb/mips-nbsd-tdep.c     |   8 +-
 gdb/mips64-obsd-tdep.c   |   3 +-
 gdb/mn10300-linux-tdep.c |   8 +-
 gdb/nios2-linux-tdep.c   |   3 +-
 gdb/ppc-fbsd-tdep.c      |   6 +-
 gdb/ppc-linux-tdep.c     |  12 +--
 gdb/ppc-nbsd-tdep.c      |   4 +-
 gdb/ppc-obsd-tdep.c      |   2 +-
 gdb/regcache.h           |   8 ++
 gdb/rs6000-aix-tdep.c    |   4 +-
 gdb/s390-linux-tdep.c    |  23 +++---
 gdb/score-tdep.c         |   4 +-
 gdb/sh-tdep.c            |   6 +-
 gdb/sparc-tdep.c         |   6 +-
 gdb/tilegx-linux-tdep.c  |   4 +-
 gdb/vax-tdep.c           |   2 +-
 gdb/xtensa-tdep.c        |   4 +-
 44 files changed, 350 insertions(+), 130 deletions(-)

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