[PATCH v2 0/2] objtool: add support for >64k sections

From: Sami Tolvanen
Date: Tue Apr 21 2020 - 18:08:57 EST


This series fixes objtool for binaries with >64k sections, and
includes optimizations to reduce the runtime for a binary with
~130k sections from >15 minutes to ~4 seconds.

Changes in v2:
- Dropped the insn_hash optimization as Peter has a nearly
similar change queued already.
- Instead of storing the last instruction for each section,
use find_insn to locate it.


Sami Tolvanen (2):
objtool: use gelf_getsymshndx to handle >64k sections
objtool: optimize add_dead_ends for split sections

tools/objtool/check.c | 36 +++++++++++++++++-------------------
tools/objtool/elf.c | 24 +++++++++++++++++-------
2 files changed, 34 insertions(+), 26 deletions(-)


base-commit: 18bf34080c4c3beb6699181986cc97dd712498fe
--
2.26.1.301.g55bc3eb7cb9-goog