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[v3,00/19] contrib/elf2dmp: Improve robustness

Message ID 20240306-elf2dmp-v3-0-d74e6c3da49c@daynix.com
Headers show
Series contrib/elf2dmp: Improve robustness | expand

Message

Akihiko Odaki March 6, 2024, 6:12 a.m. UTC 
elf2dmp sometimes fails to work with partially corrupted dumps, and also
emits warnings when sanitizers are in use. This series are collections
of changes to improve the situation.

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
Changes in v3:
- Split patch "contrib/elf2dmp: Conform to the error reporting pattern".
  (Peter Maydell)
- Stated that the relevant value is little-endian in patch
  "contrib/elf2dmp: Use lduw_le_p() to read PDB".
- Added a message saying "Build it only for little endian hosts until
  they are fixed." for patch "contrib/elf2dmp: Build only for little
  endian host".
- Added patch "contrib/elf2dmp: Ensure phdrs fit in file" to fix
  https://gitlab.com/qemu-project/qemu/-/issues/2202 as patch
  "contrib/elf2dmp: Clamp QEMU note to file size" was not really fixing
  the crash.
- Link to v2: https://lore.kernel.org/r/20240305-elf2dmp-v2-0-86ff2163ad32@daynix.com

Changes in v2:
- Added patch "contrib/elf2dmp: Remove unnecessary err flags".
- Added patch "contrib/elf2dmp: Assume error by default".
- Added patch "contrib/elf2dmp: Conform to the error reporting pattern".
- Added patch "contrib/elf2dmp: Build only for little endian host".
- Added patch "contrib/elf2dmp: Use GPtrArray".
- Added patch "contrib/elf2dmp: Clamp QEMU note to file size".
- Changed error handling in patch "contrib/elf2dmp: Ensure segment fits
  in file" (Peter Maydell)
- Added a comment to fill_context() that it continues on failure.
  (Peter Maydell)
- Link to v1: https://lore.kernel.org/r/20240303-elf2dmp-v1-0-bea6649fe3e6@daynix.com

---
Akihiko Odaki (19):
      contrib/elf2dmp: Remove unnecessary err flags
      contrib/elf2dmp: Assume error by default
      contrib/elf2dmp: Continue even contexts are lacking
      contrib/elf2dmp: Change pa_space_create() signature
      contrib/elf2dmp: Fix error reporting style in addrspace.c
      contrib/elf2dmp: Fix error reporting style in download.c
      contrib/elf2dmp: Fix error reporting style in pdb.c
      contrib/elf2dmp: Fix error reporting style in qemu_elf.c
      contrib/elf2dmp: Fix error reporting style in main.c
      contrib/elf2dmp: Always check for PA resolution failure
      contrib/elf2dmp: Always destroy PA space
      contrib/elf2dmp: Ensure segment fits in file
      contrib/elf2dmp: Use lduw_le_p() to read PDB
      contrib/elf2dmp: Use rol64() to decode
      MAINTAINERS: Add Akihiko Odaki as a elf2dmp reviewer
      contrib/elf2dmp: Build only for little endian host
      contrib/elf2dmp: Use GPtrArray
      contrib/elf2dmp: Clamp QEMU note to file size
      contrib/elf2dmp: Ensure phdrs fit in file

 MAINTAINERS                 |   1 +
 contrib/elf2dmp/addrspace.h |   6 +-
 contrib/elf2dmp/download.h  |   2 +-
 contrib/elf2dmp/pdb.h       |   2 +-
 contrib/elf2dmp/qemu_elf.h  |   2 +-
 contrib/elf2dmp/addrspace.c |  63 ++++++++++-------
 contrib/elf2dmp/download.c  |  12 ++--
 contrib/elf2dmp/main.c      | 168 ++++++++++++++++++++------------------------
 contrib/elf2dmp/pdb.c       |  61 +++++++---------
 contrib/elf2dmp/qemu_elf.c  | 150 ++++++++++++++++++++++-----------------
 contrib/elf2dmp/meson.build |   2 +-
 11 files changed, 238 insertions(+), 231 deletions(-)
---
base-commit: bfe8020c814a30479a4241aaa78b63960655962b
change-id: 20240301-elf2dmp-1a6a551f8663

Best regards,