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commit 3e0a91b79b409a6a4113a0fdb08221c0bb29cfce
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Mon Apr 11 11:28:08 2022 +0200
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scripts: Add glibcelf.py module
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Hopefully, this will lead to tests that are easier to maintain. The
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current approach of parsing readelf -W output using regular expressions
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is not necessarily easier than parsing the ELF data directly.
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This module is still somewhat incomplete (e.g., coverage of relocation
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types and versioning information is missing), but it is sufficient to
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perform basic symbol analysis or program header analysis.
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The EM_* mapping for architecture-specific constant classes (e.g.,
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SttX86_64) is not yet implemented. The classes are defined for the
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benefit of elf/tst-glibcelf.py.
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Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
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(cherry picked from commit 30035d67728a846fa39749cd162afd278ac654c4)
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diff --git a/elf/Makefile b/elf/Makefile
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index 8e2dd91c583f9a62..8afbe3f6ab259331 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -1053,6 +1053,13 @@ CFLAGS-tst-prelink.c += -fno-pie
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tst-prelink-no-pie = yes
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endif
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+tests-special += $(objpfx)tst-glibcelf.out
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+$(objpfx)tst-glibcelf.out: tst-glibcelf.py elf.h $(..)/scripts/glibcelf.py \
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+ $(..)/scripts/glibcextract.py
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+ PYTHONPATH=$(..)scripts $(PYTHON) tst-glibcelf.py \
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+ --cc="$(CC) $(patsubst -DMODULE_NAME=%,-DMODULE_NAME=testsuite,$(CPPFLAGS))" \
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+ < /dev/null > $@ 2>&1; $(evaluate-test)
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+
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# The test requires shared _and_ PIE because the executable
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# unit test driver must be able to link with the shared object
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# that is going to eventually go into an installed DSO.
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diff --git a/elf/tst-glibcelf.py b/elf/tst-glibcelf.py
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new file mode 100644
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index 0000000000000000..bf15a3bad4479e08
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--- /dev/null
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+++ b/elf/tst-glibcelf.py
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@@ -0,0 +1,260 @@
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+#!/usr/bin/python3
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+# Verify scripts/glibcelf.py contents against elf/elf.h.
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+# Copyright (C) 2022 Free Software Foundation, Inc.
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+# This file is part of the GNU C Library.
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+#
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+# The GNU C Library is free software; you can redistribute it and/or
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+# modify it under the terms of the GNU Lesser General Public
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+# License as published by the Free Software Foundation; either
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+# version 2.1 of the License, or (at your option) any later version.
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+#
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+# The GNU C Library is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+# Lesser General Public License for more details.
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+#
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+# You should have received a copy of the GNU Lesser General Public
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+# License along with the GNU C Library; if not, see
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+# <https://www.gnu.org/licenses/>.
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+
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+import argparse
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+import enum
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+import sys
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+
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+import glibcelf
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+import glibcextract
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+
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+errors_encountered = 0
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+
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+def error(message):
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+ global errors_encountered
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+ sys.stdout.write('error: {}\n'.format(message))
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+ errors_encountered += 1
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+
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+# The enum constants in glibcelf are expected to have exactly these
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+# prefixes.
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+expected_constant_prefixes = tuple(
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+ 'ELFCLASS ELFDATA EM_ ET_ DT_ PF_ PT_ SHF_ SHN_ SHT_ STB_ STT_'.split())
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+
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+def find_constant_prefix(name):
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+ """Returns a matching prefix from expected_constant_prefixes or None."""
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+ for prefix in expected_constant_prefixes:
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+ if name.startswith(prefix):
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+ return prefix
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+ return None
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+
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+def find_enum_types():
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+ """A generator for OpenIntEnum and IntFlag classes in glibcelf."""
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+ for obj in vars(glibcelf).values():
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+ if isinstance(obj, type) and obj.__bases__[0] in (
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+ glibcelf._OpenIntEnum, enum.Enum, enum.IntFlag):
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+ yield obj
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+
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+def check_duplicates():
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+ """Verifies that enum types do not have duplicate values.
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+
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+ Different types must have different member names, too.
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+
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+ """
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+ global_seen = {}
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+ for typ in find_enum_types():
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+ seen = {}
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+ last = None
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+ for (name, e) in typ.__members__.items():
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+ if e.value in seen:
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+ error('{} has {}={} and {}={}'.format(
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+ typ, seen[e.value], e.value, name, e.value))
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+ last = e
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+ else:
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+ seen[e.value] = name
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+ if last is not None and last.value > e.value:
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+ error('{} has {}={} after {}={}'.format(
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+ typ, name, e.value, last.name, last.value))
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+ if name in global_seen:
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+ error('{} used in {} and {}'.format(
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+ name, global_seen[name], typ))
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+ else:
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+ global_seen[name] = typ
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+
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+def check_constant_prefixes():
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+ """Check that the constant prefixes match expected_constant_prefixes."""
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+ seen = set()
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+ for typ in find_enum_types():
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+ typ_prefix = None
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+ for val in typ:
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+ prefix = find_constant_prefix(val.name)
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+ if prefix is None:
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+ error('constant {!r} for {} has unknown prefix'.format(
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+ val, typ))
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+ break
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+ elif typ_prefix is None:
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+ typ_prefix = prefix
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+ seen.add(typ_prefix)
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+ elif prefix != typ_prefix:
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+ error('prefix {!r} for constant {!r}, expected {!r}'.format(
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+ prefix, val, typ_prefix))
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+ if typ_prefix is None:
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+ error('empty enum type {}'.format(typ))
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+
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+ for prefix in sorted(set(expected_constant_prefixes) - seen):
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+ error('missing constant prefix {!r}'.format(prefix))
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+ # Reverse difference is already covered inside the loop.
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+
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+def find_elf_h_constants(cc):
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+ """Returns a dictionary of relevant constants from <elf.h>."""
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+ return glibcextract.compute_macro_consts(
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+ source_text='#include <elf.h>',
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+ cc=cc,
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+ macro_re='|'.join(
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+ prefix + '.*' for prefix in expected_constant_prefixes))
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+
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+# The first part of the pair is a name of an <elf.h> constant that is
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+# dropped from glibcelf. The second part is the constant as it is
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+# used in <elf.h>.
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+glibcelf_skipped_aliases = (
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+ ('EM_ARC_A5', 'EM_ARC_COMPACT'),
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+ ('PF_PARISC_SBP', 'PF_HP_SBP')
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+)
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+
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+# Constants that provide little value and are not included in
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+# glibcelf: *LO*/*HI* range constants, *NUM constants counting the
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+# number of constants. Also includes the alias names from
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+# glibcelf_skipped_aliases.
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+glibcelf_skipped_constants = frozenset(
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+ [e[0] for e in glibcelf_skipped_aliases]) | frozenset("""
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+DT_AARCH64_NUM
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+DT_ADDRNUM
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+DT_ADDRRNGHI
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+DT_ADDRRNGLO
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+DT_ALPHA_NUM
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+DT_ENCODING
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+DT_EXTRANUM
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+DT_HIOS
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+DT_HIPROC
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+DT_IA_64_NUM
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+DT_LOOS
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+DT_LOPROC
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+DT_MIPS_NUM
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+DT_NUM
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+DT_PPC64_NUM
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+DT_PPC_NUM
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+DT_PROCNUM
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+DT_SPARC_NUM
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+DT_VALNUM
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+DT_VALRNGHI
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+DT_VALRNGLO
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+DT_VERSIONTAGNUM
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+ELFCLASSNUM
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+ELFDATANUM
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+ET_HIOS
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+ET_HIPROC
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+ET_LOOS
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+ET_LOPROC
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+ET_NUM
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+PF_MASKOS
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+PF_MASKPROC
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+PT_HIOS
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+PT_HIPROC
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+PT_HISUNW
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+PT_LOOS
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+PT_LOPROC
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+PT_LOSUNW
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+SHF_MASKOS
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+SHF_MASKPROC
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+SHN_HIOS
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+SHN_HIPROC
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+SHN_HIRESERVE
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+SHN_LOOS
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+SHN_LOPROC
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+SHN_LORESERVE
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+SHT_HIOS
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+SHT_HIPROC
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+SHT_HIPROC
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+SHT_HISUNW
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+SHT_HIUSER
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+SHT_LOOS
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+SHT_LOPROC
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+SHT_LOSUNW
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+SHT_LOUSER
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+SHT_NUM
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+STB_HIOS
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+STB_HIPROC
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+STB_LOOS
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+STB_LOPROC
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+STB_NUM
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+STT_HIOS
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+STT_HIPROC
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+STT_LOOS
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+STT_LOPROC
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+STT_NUM
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+""".strip().split())
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+
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+def check_constant_values(cc):
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+ """Checks the values of <elf.h> constants against glibcelf."""
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+
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+ glibcelf_constants = {
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+ e.name: e for typ in find_enum_types() for e in typ}
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+ elf_h_constants = find_elf_h_constants(cc=cc)
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+
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+ missing_in_glibcelf = (set(elf_h_constants) - set(glibcelf_constants)
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+ - glibcelf_skipped_constants)
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+ for name in sorted(missing_in_glibcelf):
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+ error('constant {} is missing from glibcelf'.format(name))
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+
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+ unexpected_in_glibcelf = \
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+ set(glibcelf_constants) & glibcelf_skipped_constants
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+ for name in sorted(unexpected_in_glibcelf):
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+ error('constant {} is supposed to be filtered from glibcelf'.format(
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+ name))
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+
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+ missing_in_elf_h = set(glibcelf_constants) - set(elf_h_constants)
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+ for name in sorted(missing_in_elf_h):
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+ error('constant {} is missing from <elf.h>'.format(name))
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+
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+ expected_in_elf_h = glibcelf_skipped_constants - set(elf_h_constants)
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+ for name in expected_in_elf_h:
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+ error('filtered constant {} is missing from <elf.h>'.format(name))
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+
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+ for alias_name, name_in_glibcelf in glibcelf_skipped_aliases:
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+ if name_in_glibcelf not in glibcelf_constants:
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+ error('alias value {} for {} not in glibcelf'.format(
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+ name_in_glibcelf, alias_name))
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+ elif (int(elf_h_constants[alias_name])
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+ != glibcelf_constants[name_in_glibcelf].value):
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+ error('<elf.h> has {}={}, glibcelf has {}={}'.format(
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+ alias_name, elf_h_constants[alias_name],
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+ name_in_glibcelf, glibcelf_constants[name_in_glibcelf]))
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+
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+ # Check for value mismatches:
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+ for name in sorted(set(glibcelf_constants) & set(elf_h_constants)):
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+ glibcelf_value = glibcelf_constants[name].value
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+ elf_h_value = int(elf_h_constants[name])
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+ # On 32-bit architectures <elf.h> as some constants that are
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+ # parsed as signed, while they are unsigned in glibcelf. So
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+ # far, this only affects some flag constants, so special-case
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+ # them here.
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+ if (glibcelf_value != elf_h_value
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+ and not (isinstance(glibcelf_constants[name], enum.IntFlag)
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+ and glibcelf_value == 1 << 31
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+ and elf_h_value == -(1 << 31))):
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+ error('{}: glibcelf has {!r}, <elf.h> has {!r}'.format(
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+ name, glibcelf_value, elf_h_value))
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+
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+def main():
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+ """The main entry point."""
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+ parser = argparse.ArgumentParser(
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+ description="Check glibcelf.py and elf.h against each other.")
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+ parser.add_argument('--cc', metavar='CC',
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+ help='C compiler (including options) to use')
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+ args = parser.parse_args()
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+
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+ check_duplicates()
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+ check_constant_prefixes()
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+ check_constant_values(cc=args.cc)
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076f82 |
+
|
|
|
076f82 |
+ if errors_encountered > 0:
|
|
|
076f82 |
+ print("note: errors encountered:", errors_encountered)
|
|
|
076f82 |
+ sys.exit(1)
|
|
|
076f82 |
+
|
|
|
076f82 |
+if __name__ == '__main__':
|
|
|
076f82 |
+ main()
|
|
|
076f82 |
diff --git a/scripts/glibcelf.py b/scripts/glibcelf.py
|
|
|
076f82 |
new file mode 100644
|
|
|
076f82 |
index 0000000000000000..8f7d0ca184845714
|
|
|
076f82 |
--- /dev/null
|
|
|
076f82 |
+++ b/scripts/glibcelf.py
|
|
|
076f82 |
@@ -0,0 +1,1135 @@
|
|
|
076f82 |
+#!/usr/bin/python3
|
|
|
076f82 |
+# ELF support functionality for Python.
|
|
|
076f82 |
+# Copyright (C) 2022 Free Software Foundation, Inc.
|
|
|
076f82 |
+# This file is part of the GNU C Library.
|
|
|
076f82 |
+#
|
|
|
076f82 |
+# The GNU C Library is free software; you can redistribute it and/or
|
|
|
076f82 |
+# modify it under the terms of the GNU Lesser General Public
|
|
|
076f82 |
+# License as published by the Free Software Foundation; either
|
|
|
076f82 |
+# version 2.1 of the License, or (at your option) any later version.
|
|
|
076f82 |
+#
|
|
|
076f82 |
+# The GNU C Library is distributed in the hope that it will be useful,
|
|
|
076f82 |
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
076f82 |
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
076f82 |
+# Lesser General Public License for more details.
|
|
|
076f82 |
+#
|
|
|
076f82 |
+# You should have received a copy of the GNU Lesser General Public
|
|
|
076f82 |
+# License along with the GNU C Library; if not, see
|
|
|
076f82 |
+# <https://www.gnu.org/licenses/>.
|
|
|
076f82 |
+
|
|
|
076f82 |
+"""Basic ELF parser.
|
|
|
076f82 |
+
|
|
|
076f82 |
+Use Image.readfile(path) to read an ELF file into memory and begin
|
|
|
076f82 |
+parsing it.
|
|
|
076f82 |
+
|
|
|
076f82 |
+"""
|
|
|
076f82 |
+
|
|
|
076f82 |
+import collections
|
|
|
076f82 |
+import enum
|
|
|
076f82 |
+import struct
|
|
|
076f82 |
+
|
|
|
076f82 |
+class _OpenIntEnum(enum.IntEnum):
|
|
|
076f82 |
+ """Integer enumeration that supports arbitrary int values."""
|
|
|
076f82 |
+ @classmethod
|
|
|
076f82 |
+ def _missing_(cls, value):
|
|
|
076f82 |
+ # See enum.IntFlag._create_pseudo_member_. This allows
|
|
|
076f82 |
+ # creating of enum constants with arbitrary integer values.
|
|
|
076f82 |
+ pseudo_member = int.__new__(cls, value)
|
|
|
076f82 |
+ pseudo_member._name_ = None
|
|
|
076f82 |
+ pseudo_member._value_ = value
|
|
|
076f82 |
+ return pseudo_member
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def __repr__(self):
|
|
|
076f82 |
+ name = self._name_
|
|
|
076f82 |
+ if name is not None:
|
|
|
076f82 |
+ # The names have prefixes like SHT_, implying their type.
|
|
|
076f82 |
+ return name
|
|
|
076f82 |
+ return '{}({})'.format(self.__class__.__name__, self._value_)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def __str__(self):
|
|
|
076f82 |
+ name = self._name_
|
|
|
076f82 |
+ if name is not None:
|
|
|
076f82 |
+ return name
|
|
|
076f82 |
+ return str(self._value_)
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ElfClass(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF word size. Type of EI_CLASS values."""
|
|
|
076f82 |
+ ELFCLASSNONE = 0
|
|
|
076f82 |
+ ELFCLASS32 = 1
|
|
|
076f82 |
+ ELFCLASS64 = 2
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ElfData(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF endianess. Type of EI_DATA values."""
|
|
|
076f82 |
+ ELFDATANONE = 0
|
|
|
076f82 |
+ ELFDATA2LSB = 1
|
|
|
076f82 |
+ ELFDATA2MSB = 2
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Machine(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF machine type. Type of values in Ehdr.e_machine field."""
|
|
|
076f82 |
+ EM_NONE = 0
|
|
|
076f82 |
+ EM_M32 = 1
|
|
|
076f82 |
+ EM_SPARC = 2
|
|
|
076f82 |
+ EM_386 = 3
|
|
|
076f82 |
+ EM_68K = 4
|
|
|
076f82 |
+ EM_88K = 5
|
|
|
076f82 |
+ EM_IAMCU = 6
|
|
|
076f82 |
+ EM_860 = 7
|
|
|
076f82 |
+ EM_MIPS = 8
|
|
|
076f82 |
+ EM_S370 = 9
|
|
|
076f82 |
+ EM_MIPS_RS3_LE = 10
|
|
|
076f82 |
+ EM_PARISC = 15
|
|
|
076f82 |
+ EM_VPP500 = 17
|
|
|
076f82 |
+ EM_SPARC32PLUS = 18
|
|
|
076f82 |
+ EM_960 = 19
|
|
|
076f82 |
+ EM_PPC = 20
|
|
|
076f82 |
+ EM_PPC64 = 21
|
|
|
076f82 |
+ EM_S390 = 22
|
|
|
076f82 |
+ EM_SPU = 23
|
|
|
076f82 |
+ EM_V800 = 36
|
|
|
076f82 |
+ EM_FR20 = 37
|
|
|
076f82 |
+ EM_RH32 = 38
|
|
|
076f82 |
+ EM_RCE = 39
|
|
|
076f82 |
+ EM_ARM = 40
|
|
|
076f82 |
+ EM_FAKE_ALPHA = 41
|
|
|
076f82 |
+ EM_SH = 42
|
|
|
076f82 |
+ EM_SPARCV9 = 43
|
|
|
076f82 |
+ EM_TRICORE = 44
|
|
|
076f82 |
+ EM_ARC = 45
|
|
|
076f82 |
+ EM_H8_300 = 46
|
|
|
076f82 |
+ EM_H8_300H = 47
|
|
|
076f82 |
+ EM_H8S = 48
|
|
|
076f82 |
+ EM_H8_500 = 49
|
|
|
076f82 |
+ EM_IA_64 = 50
|
|
|
076f82 |
+ EM_MIPS_X = 51
|
|
|
076f82 |
+ EM_COLDFIRE = 52
|
|
|
076f82 |
+ EM_68HC12 = 53
|
|
|
076f82 |
+ EM_MMA = 54
|
|
|
076f82 |
+ EM_PCP = 55
|
|
|
076f82 |
+ EM_NCPU = 56
|
|
|
076f82 |
+ EM_NDR1 = 57
|
|
|
076f82 |
+ EM_STARCORE = 58
|
|
|
076f82 |
+ EM_ME16 = 59
|
|
|
076f82 |
+ EM_ST100 = 60
|
|
|
076f82 |
+ EM_TINYJ = 61
|
|
|
076f82 |
+ EM_X86_64 = 62
|
|
|
076f82 |
+ EM_PDSP = 63
|
|
|
076f82 |
+ EM_PDP10 = 64
|
|
|
076f82 |
+ EM_PDP11 = 65
|
|
|
076f82 |
+ EM_FX66 = 66
|
|
|
076f82 |
+ EM_ST9PLUS = 67
|
|
|
076f82 |
+ EM_ST7 = 68
|
|
|
076f82 |
+ EM_68HC16 = 69
|
|
|
076f82 |
+ EM_68HC11 = 70
|
|
|
076f82 |
+ EM_68HC08 = 71
|
|
|
076f82 |
+ EM_68HC05 = 72
|
|
|
076f82 |
+ EM_SVX = 73
|
|
|
076f82 |
+ EM_ST19 = 74
|
|
|
076f82 |
+ EM_VAX = 75
|
|
|
076f82 |
+ EM_CRIS = 76
|
|
|
076f82 |
+ EM_JAVELIN = 77
|
|
|
076f82 |
+ EM_FIREPATH = 78
|
|
|
076f82 |
+ EM_ZSP = 79
|
|
|
076f82 |
+ EM_MMIX = 80
|
|
|
076f82 |
+ EM_HUANY = 81
|
|
|
076f82 |
+ EM_PRISM = 82
|
|
|
076f82 |
+ EM_AVR = 83
|
|
|
076f82 |
+ EM_FR30 = 84
|
|
|
076f82 |
+ EM_D10V = 85
|
|
|
076f82 |
+ EM_D30V = 86
|
|
|
076f82 |
+ EM_V850 = 87
|
|
|
076f82 |
+ EM_M32R = 88
|
|
|
076f82 |
+ EM_MN10300 = 89
|
|
|
076f82 |
+ EM_MN10200 = 90
|
|
|
076f82 |
+ EM_PJ = 91
|
|
|
076f82 |
+ EM_OPENRISC = 92
|
|
|
076f82 |
+ EM_ARC_COMPACT = 93
|
|
|
076f82 |
+ EM_XTENSA = 94
|
|
|
076f82 |
+ EM_VIDEOCORE = 95
|
|
|
076f82 |
+ EM_TMM_GPP = 96
|
|
|
076f82 |
+ EM_NS32K = 97
|
|
|
076f82 |
+ EM_TPC = 98
|
|
|
076f82 |
+ EM_SNP1K = 99
|
|
|
076f82 |
+ EM_ST200 = 100
|
|
|
076f82 |
+ EM_IP2K = 101
|
|
|
076f82 |
+ EM_MAX = 102
|
|
|
076f82 |
+ EM_CR = 103
|
|
|
076f82 |
+ EM_F2MC16 = 104
|
|
|
076f82 |
+ EM_MSP430 = 105
|
|
|
076f82 |
+ EM_BLACKFIN = 106
|
|
|
076f82 |
+ EM_SE_C33 = 107
|
|
|
076f82 |
+ EM_SEP = 108
|
|
|
076f82 |
+ EM_ARCA = 109
|
|
|
076f82 |
+ EM_UNICORE = 110
|
|
|
076f82 |
+ EM_EXCESS = 111
|
|
|
076f82 |
+ EM_DXP = 112
|
|
|
076f82 |
+ EM_ALTERA_NIOS2 = 113
|
|
|
076f82 |
+ EM_CRX = 114
|
|
|
076f82 |
+ EM_XGATE = 115
|
|
|
076f82 |
+ EM_C166 = 116
|
|
|
076f82 |
+ EM_M16C = 117
|
|
|
076f82 |
+ EM_DSPIC30F = 118
|
|
|
076f82 |
+ EM_CE = 119
|
|
|
076f82 |
+ EM_M32C = 120
|
|
|
076f82 |
+ EM_TSK3000 = 131
|
|
|
076f82 |
+ EM_RS08 = 132
|
|
|
076f82 |
+ EM_SHARC = 133
|
|
|
076f82 |
+ EM_ECOG2 = 134
|
|
|
076f82 |
+ EM_SCORE7 = 135
|
|
|
076f82 |
+ EM_DSP24 = 136
|
|
|
076f82 |
+ EM_VIDEOCORE3 = 137
|
|
|
076f82 |
+ EM_LATTICEMICO32 = 138
|
|
|
076f82 |
+ EM_SE_C17 = 139
|
|
|
076f82 |
+ EM_TI_C6000 = 140
|
|
|
076f82 |
+ EM_TI_C2000 = 141
|
|
|
076f82 |
+ EM_TI_C5500 = 142
|
|
|
076f82 |
+ EM_TI_ARP32 = 143
|
|
|
076f82 |
+ EM_TI_PRU = 144
|
|
|
076f82 |
+ EM_MMDSP_PLUS = 160
|
|
|
076f82 |
+ EM_CYPRESS_M8C = 161
|
|
|
076f82 |
+ EM_R32C = 162
|
|
|
076f82 |
+ EM_TRIMEDIA = 163
|
|
|
076f82 |
+ EM_QDSP6 = 164
|
|
|
076f82 |
+ EM_8051 = 165
|
|
|
076f82 |
+ EM_STXP7X = 166
|
|
|
076f82 |
+ EM_NDS32 = 167
|
|
|
076f82 |
+ EM_ECOG1X = 168
|
|
|
076f82 |
+ EM_MAXQ30 = 169
|
|
|
076f82 |
+ EM_XIMO16 = 170
|
|
|
076f82 |
+ EM_MANIK = 171
|
|
|
076f82 |
+ EM_CRAYNV2 = 172
|
|
|
076f82 |
+ EM_RX = 173
|
|
|
076f82 |
+ EM_METAG = 174
|
|
|
076f82 |
+ EM_MCST_ELBRUS = 175
|
|
|
076f82 |
+ EM_ECOG16 = 176
|
|
|
076f82 |
+ EM_CR16 = 177
|
|
|
076f82 |
+ EM_ETPU = 178
|
|
|
076f82 |
+ EM_SLE9X = 179
|
|
|
076f82 |
+ EM_L10M = 180
|
|
|
076f82 |
+ EM_K10M = 181
|
|
|
076f82 |
+ EM_AARCH64 = 183
|
|
|
076f82 |
+ EM_AVR32 = 185
|
|
|
076f82 |
+ EM_STM8 = 186
|
|
|
076f82 |
+ EM_TILE64 = 187
|
|
|
076f82 |
+ EM_TILEPRO = 188
|
|
|
076f82 |
+ EM_MICROBLAZE = 189
|
|
|
076f82 |
+ EM_CUDA = 190
|
|
|
076f82 |
+ EM_TILEGX = 191
|
|
|
076f82 |
+ EM_CLOUDSHIELD = 192
|
|
|
076f82 |
+ EM_COREA_1ST = 193
|
|
|
076f82 |
+ EM_COREA_2ND = 194
|
|
|
076f82 |
+ EM_ARCV2 = 195
|
|
|
076f82 |
+ EM_OPEN8 = 196
|
|
|
076f82 |
+ EM_RL78 = 197
|
|
|
076f82 |
+ EM_VIDEOCORE5 = 198
|
|
|
076f82 |
+ EM_78KOR = 199
|
|
|
076f82 |
+ EM_56800EX = 200
|
|
|
076f82 |
+ EM_BA1 = 201
|
|
|
076f82 |
+ EM_BA2 = 202
|
|
|
076f82 |
+ EM_XCORE = 203
|
|
|
076f82 |
+ EM_MCHP_PIC = 204
|
|
|
076f82 |
+ EM_INTELGT = 205
|
|
|
076f82 |
+ EM_KM32 = 210
|
|
|
076f82 |
+ EM_KMX32 = 211
|
|
|
076f82 |
+ EM_EMX16 = 212
|
|
|
076f82 |
+ EM_EMX8 = 213
|
|
|
076f82 |
+ EM_KVARC = 214
|
|
|
076f82 |
+ EM_CDP = 215
|
|
|
076f82 |
+ EM_COGE = 216
|
|
|
076f82 |
+ EM_COOL = 217
|
|
|
076f82 |
+ EM_NORC = 218
|
|
|
076f82 |
+ EM_CSR_KALIMBA = 219
|
|
|
076f82 |
+ EM_Z80 = 220
|
|
|
076f82 |
+ EM_VISIUM = 221
|
|
|
076f82 |
+ EM_FT32 = 222
|
|
|
076f82 |
+ EM_MOXIE = 223
|
|
|
076f82 |
+ EM_AMDGPU = 224
|
|
|
076f82 |
+ EM_RISCV = 243
|
|
|
076f82 |
+ EM_BPF = 247
|
|
|
076f82 |
+ EM_CSKY = 252
|
|
|
076f82 |
+ EM_NUM = 253
|
|
|
076f82 |
+ EM_ALPHA = 0x9026
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Et(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF file type. Type of ET_* values and the Ehdr.e_type field."""
|
|
|
076f82 |
+ ET_NONE = 0
|
|
|
076f82 |
+ ET_REL = 1
|
|
|
076f82 |
+ ET_EXEC = 2
|
|
|
076f82 |
+ ET_DYN = 3
|
|
|
076f82 |
+ ET_CORE = 4
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Shn(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF reserved section indices."""
|
|
|
076f82 |
+ SHN_UNDEF = 0
|
|
|
076f82 |
+ SHN_BEFORE = 0xff00
|
|
|
076f82 |
+ SHN_AFTER = 0xff01
|
|
|
076f82 |
+ SHN_ABS = 0xfff1
|
|
|
076f82 |
+ SHN_COMMON = 0xfff2
|
|
|
076f82 |
+ SHN_XINDEX = 0xffff
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShnMIPS(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHN_* constants for EM_MIPS."""
|
|
|
076f82 |
+ SHN_MIPS_ACOMMON = 0xff00
|
|
|
076f82 |
+ SHN_MIPS_TEXT = 0xff01
|
|
|
076f82 |
+ SHN_MIPS_DATA = 0xff02
|
|
|
076f82 |
+ SHN_MIPS_SCOMMON = 0xff03
|
|
|
076f82 |
+ SHN_MIPS_SUNDEFINED = 0xff04
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShnPARISC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHN_* constants for EM_PARISC."""
|
|
|
076f82 |
+ SHN_PARISC_ANSI_COMMON = 0xff00
|
|
|
076f82 |
+ SHN_PARISC_HUGE_COMMON = 0xff01
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Sht(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF section types. Type of SHT_* values."""
|
|
|
076f82 |
+ SHT_NULL = 0
|
|
|
076f82 |
+ SHT_PROGBITS = 1
|
|
|
076f82 |
+ SHT_SYMTAB = 2
|
|
|
076f82 |
+ SHT_STRTAB = 3
|
|
|
076f82 |
+ SHT_RELA = 4
|
|
|
076f82 |
+ SHT_HASH = 5
|
|
|
076f82 |
+ SHT_DYNAMIC = 6
|
|
|
076f82 |
+ SHT_NOTE = 7
|
|
|
076f82 |
+ SHT_NOBITS = 8
|
|
|
076f82 |
+ SHT_REL = 9
|
|
|
076f82 |
+ SHT_SHLIB = 10
|
|
|
076f82 |
+ SHT_DYNSYM = 11
|
|
|
076f82 |
+ SHT_INIT_ARRAY = 14
|
|
|
076f82 |
+ SHT_FINI_ARRAY = 15
|
|
|
076f82 |
+ SHT_PREINIT_ARRAY = 16
|
|
|
076f82 |
+ SHT_GROUP = 17
|
|
|
076f82 |
+ SHT_SYMTAB_SHNDX = 18
|
|
|
076f82 |
+ SHT_GNU_ATTRIBUTES = 0x6ffffff5
|
|
|
076f82 |
+ SHT_GNU_HASH = 0x6ffffff6
|
|
|
076f82 |
+ SHT_GNU_LIBLIST = 0x6ffffff7
|
|
|
076f82 |
+ SHT_CHECKSUM = 0x6ffffff8
|
|
|
076f82 |
+ SHT_SUNW_move = 0x6ffffffa
|
|
|
076f82 |
+ SHT_SUNW_COMDAT = 0x6ffffffb
|
|
|
076f82 |
+ SHT_SUNW_syminfo = 0x6ffffffc
|
|
|
076f82 |
+ SHT_GNU_verdef = 0x6ffffffd
|
|
|
076f82 |
+ SHT_GNU_verneed = 0x6ffffffe
|
|
|
076f82 |
+ SHT_GNU_versym = 0x6fffffff
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShtALPHA(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHT_* constants for EM_ALPHA."""
|
|
|
076f82 |
+ SHT_ALPHA_DEBUG = 0x70000001
|
|
|
076f82 |
+ SHT_ALPHA_REGINFO = 0x70000002
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShtARM(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHT_* constants for EM_ARM."""
|
|
|
076f82 |
+ SHT_ARM_EXIDX = 0x70000001
|
|
|
076f82 |
+ SHT_ARM_PREEMPTMAP = 0x70000002
|
|
|
076f82 |
+ SHT_ARM_ATTRIBUTES = 0x70000003
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShtCSKY(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHT_* constants for EM_CSKY."""
|
|
|
076f82 |
+ SHT_CSKY_ATTRIBUTES = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShtIA_64(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHT_* constants for EM_IA_64."""
|
|
|
076f82 |
+ SHT_IA_64_EXT = 0x70000000
|
|
|
076f82 |
+ SHT_IA_64_UNWIND = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShtMIPS(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHT_* constants for EM_MIPS."""
|
|
|
076f82 |
+ SHT_MIPS_LIBLIST = 0x70000000
|
|
|
076f82 |
+ SHT_MIPS_MSYM = 0x70000001
|
|
|
076f82 |
+ SHT_MIPS_CONFLICT = 0x70000002
|
|
|
076f82 |
+ SHT_MIPS_GPTAB = 0x70000003
|
|
|
076f82 |
+ SHT_MIPS_UCODE = 0x70000004
|
|
|
076f82 |
+ SHT_MIPS_DEBUG = 0x70000005
|
|
|
076f82 |
+ SHT_MIPS_REGINFO = 0x70000006
|
|
|
076f82 |
+ SHT_MIPS_PACKAGE = 0x70000007
|
|
|
076f82 |
+ SHT_MIPS_PACKSYM = 0x70000008
|
|
|
076f82 |
+ SHT_MIPS_RELD = 0x70000009
|
|
|
076f82 |
+ SHT_MIPS_IFACE = 0x7000000b
|
|
|
076f82 |
+ SHT_MIPS_CONTENT = 0x7000000c
|
|
|
076f82 |
+ SHT_MIPS_OPTIONS = 0x7000000d
|
|
|
076f82 |
+ SHT_MIPS_SHDR = 0x70000010
|
|
|
076f82 |
+ SHT_MIPS_FDESC = 0x70000011
|
|
|
076f82 |
+ SHT_MIPS_EXTSYM = 0x70000012
|
|
|
076f82 |
+ SHT_MIPS_DENSE = 0x70000013
|
|
|
076f82 |
+ SHT_MIPS_PDESC = 0x70000014
|
|
|
076f82 |
+ SHT_MIPS_LOCSYM = 0x70000015
|
|
|
076f82 |
+ SHT_MIPS_AUXSYM = 0x70000016
|
|
|
076f82 |
+ SHT_MIPS_OPTSYM = 0x70000017
|
|
|
076f82 |
+ SHT_MIPS_LOCSTR = 0x70000018
|
|
|
076f82 |
+ SHT_MIPS_LINE = 0x70000019
|
|
|
076f82 |
+ SHT_MIPS_RFDESC = 0x7000001a
|
|
|
076f82 |
+ SHT_MIPS_DELTASYM = 0x7000001b
|
|
|
076f82 |
+ SHT_MIPS_DELTAINST = 0x7000001c
|
|
|
076f82 |
+ SHT_MIPS_DELTACLASS = 0x7000001d
|
|
|
076f82 |
+ SHT_MIPS_DWARF = 0x7000001e
|
|
|
076f82 |
+ SHT_MIPS_DELTADECL = 0x7000001f
|
|
|
076f82 |
+ SHT_MIPS_SYMBOL_LIB = 0x70000020
|
|
|
076f82 |
+ SHT_MIPS_EVENTS = 0x70000021
|
|
|
076f82 |
+ SHT_MIPS_TRANSLATE = 0x70000022
|
|
|
076f82 |
+ SHT_MIPS_PIXIE = 0x70000023
|
|
|
076f82 |
+ SHT_MIPS_XLATE = 0x70000024
|
|
|
076f82 |
+ SHT_MIPS_XLATE_DEBUG = 0x70000025
|
|
|
076f82 |
+ SHT_MIPS_WHIRL = 0x70000026
|
|
|
076f82 |
+ SHT_MIPS_EH_REGION = 0x70000027
|
|
|
076f82 |
+ SHT_MIPS_XLATE_OLD = 0x70000028
|
|
|
076f82 |
+ SHT_MIPS_PDR_EXCEPTION = 0x70000029
|
|
|
076f82 |
+ SHT_MIPS_XHASH = 0x7000002b
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShtPARISC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental SHT_* constants for EM_PARISC."""
|
|
|
076f82 |
+ SHT_PARISC_EXT = 0x70000000
|
|
|
076f82 |
+ SHT_PARISC_UNWIND = 0x70000001
|
|
|
076f82 |
+ SHT_PARISC_DOC = 0x70000002
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Pf(enum.IntFlag):
|
|
|
076f82 |
+ """Program header flags. Type of Phdr.p_flags values."""
|
|
|
076f82 |
+ PF_X = 1
|
|
|
076f82 |
+ PF_W = 2
|
|
|
076f82 |
+ PF_R = 4
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PfARM(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental PF_* flags for EM_ARM."""
|
|
|
076f82 |
+ PF_ARM_SB = 0x10000000
|
|
|
076f82 |
+ PF_ARM_PI = 0x20000000
|
|
|
076f82 |
+ PF_ARM_ABS = 0x40000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PfPARISC(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental PF_* flags for EM_PARISC."""
|
|
|
076f82 |
+ PF_HP_PAGE_SIZE = 0x00100000
|
|
|
076f82 |
+ PF_HP_FAR_SHARED = 0x00200000
|
|
|
076f82 |
+ PF_HP_NEAR_SHARED = 0x00400000
|
|
|
076f82 |
+ PF_HP_CODE = 0x01000000
|
|
|
076f82 |
+ PF_HP_MODIFY = 0x02000000
|
|
|
076f82 |
+ PF_HP_LAZYSWAP = 0x04000000
|
|
|
076f82 |
+ PF_HP_SBP = 0x08000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PfIA_64(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental PF_* flags for EM_IA_64."""
|
|
|
076f82 |
+ PF_IA_64_NORECOV = 0x80000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PfMIPS(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental PF_* flags for EM_MIPS."""
|
|
|
076f82 |
+ PF_MIPS_LOCAL = 0x10000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Shf(enum.IntFlag):
|
|
|
076f82 |
+ """Section flags. Type of Shdr.sh_type values."""
|
|
|
076f82 |
+ SHF_WRITE = 1 << 0
|
|
|
076f82 |
+ SHF_ALLOC = 1 << 1
|
|
|
076f82 |
+ SHF_EXECINSTR = 1 << 2
|
|
|
076f82 |
+ SHF_MERGE = 1 << 4
|
|
|
076f82 |
+ SHF_STRINGS = 1 << 5
|
|
|
076f82 |
+ SHF_INFO_LINK = 1 << 6
|
|
|
076f82 |
+ SHF_LINK_ORDER = 1 << 7
|
|
|
076f82 |
+ SHF_OS_NONCONFORMING = 256
|
|
|
076f82 |
+ SHF_GROUP = 1 << 9
|
|
|
076f82 |
+ SHF_TLS = 1 << 10
|
|
|
076f82 |
+ SHF_COMPRESSED = 1 << 11
|
|
|
076f82 |
+ SHF_GNU_RETAIN = 1 << 21
|
|
|
076f82 |
+ SHF_ORDERED = 1 << 30
|
|
|
076f82 |
+ SHF_EXCLUDE = 1 << 31
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShfALPHA(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental SHF_* constants for EM_ALPHA."""
|
|
|
076f82 |
+ SHF_ALPHA_GPREL = 0x10000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShfARM(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental SHF_* constants for EM_ARM."""
|
|
|
076f82 |
+ SHF_ARM_ENTRYSECT = 0x10000000
|
|
|
076f82 |
+ SHF_ARM_COMDEF = 0x80000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShfIA_64(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental SHF_* constants for EM_IA_64."""
|
|
|
076f82 |
+ SHF_IA_64_SHORT = 0x10000000
|
|
|
076f82 |
+ SHF_IA_64_NORECOV = 0x20000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShfMIPS(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental SHF_* constants for EM_MIPS."""
|
|
|
076f82 |
+ SHF_MIPS_GPREL = 0x10000000
|
|
|
076f82 |
+ SHF_MIPS_MERGE = 0x20000000
|
|
|
076f82 |
+ SHF_MIPS_ADDR = 0x40000000
|
|
|
076f82 |
+ SHF_MIPS_STRINGS = 0x80000000
|
|
|
076f82 |
+ SHF_MIPS_NOSTRIP = 0x08000000
|
|
|
076f82 |
+ SHF_MIPS_LOCAL = 0x04000000
|
|
|
076f82 |
+ SHF_MIPS_NAMES = 0x02000000
|
|
|
076f82 |
+ SHF_MIPS_NODUPE = 0x01000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class ShfPARISC(enum.IntFlag):
|
|
|
076f82 |
+ """Supplemental SHF_* constants for EM_PARISC."""
|
|
|
076f82 |
+ SHF_PARISC_SHORT = 0x20000000
|
|
|
076f82 |
+ SHF_PARISC_HUGE = 0x40000000
|
|
|
076f82 |
+ SHF_PARISC_SBP = 0x80000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Stb(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF symbol binding type."""
|
|
|
076f82 |
+ STB_LOCAL = 0
|
|
|
076f82 |
+ STB_GLOBAL = 1
|
|
|
076f82 |
+ STB_WEAK = 2
|
|
|
076f82 |
+ STB_GNU_UNIQUE = 10
|
|
|
076f82 |
+ STB_MIPS_SPLIT_COMMON = 13
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Stt(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF symbol type."""
|
|
|
076f82 |
+ STT_NOTYPE = 0
|
|
|
076f82 |
+ STT_OBJECT = 1
|
|
|
076f82 |
+ STT_FUNC = 2
|
|
|
076f82 |
+ STT_SECTION = 3
|
|
|
076f82 |
+ STT_FILE = 4
|
|
|
076f82 |
+ STT_COMMON = 5
|
|
|
076f82 |
+ STT_TLS = 6
|
|
|
076f82 |
+ STT_GNU_IFUNC = 10
|
|
|
076f82 |
+
|
|
|
076f82 |
+class SttARM(enum.Enum):
|
|
|
076f82 |
+ """Supplemental STT_* constants for EM_ARM."""
|
|
|
076f82 |
+ STT_ARM_TFUNC = 13
|
|
|
076f82 |
+ STT_ARM_16BIT = 15
|
|
|
076f82 |
+
|
|
|
076f82 |
+class SttPARISC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental STT_* constants for EM_PARISC."""
|
|
|
076f82 |
+ STT_HP_OPAQUE = 11
|
|
|
076f82 |
+ STT_HP_STUB = 12
|
|
|
076f82 |
+ STT_PARISC_MILLICODE = 13
|
|
|
076f82 |
+
|
|
|
076f82 |
+class SttSPARC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental STT_* constants for EM_SPARC."""
|
|
|
076f82 |
+ STT_SPARC_REGISTER = 13
|
|
|
076f82 |
+
|
|
|
076f82 |
+class SttX86_64(enum.Enum):
|
|
|
076f82 |
+ """Supplemental STT_* constants for EM_X86_64."""
|
|
|
076f82 |
+ SHT_X86_64_UNWIND = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Pt(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF program header types. Type of Phdr.p_type."""
|
|
|
076f82 |
+ PT_NULL = 0
|
|
|
076f82 |
+ PT_LOAD = 1
|
|
|
076f82 |
+ PT_DYNAMIC = 2
|
|
|
076f82 |
+ PT_INTERP = 3
|
|
|
076f82 |
+ PT_NOTE = 4
|
|
|
076f82 |
+ PT_SHLIB = 5
|
|
|
076f82 |
+ PT_PHDR = 6
|
|
|
076f82 |
+ PT_TLS = 7
|
|
|
076f82 |
+ PT_NUM = 8
|
|
|
076f82 |
+ PT_GNU_EH_FRAME = 0x6474e550
|
|
|
076f82 |
+ PT_GNU_STACK = 0x6474e551
|
|
|
076f82 |
+ PT_GNU_RELRO = 0x6474e552
|
|
|
076f82 |
+ PT_GNU_PROPERTY = 0x6474e553
|
|
|
076f82 |
+ PT_SUNWBSS = 0x6ffffffa
|
|
|
076f82 |
+ PT_SUNWSTACK = 0x6ffffffb
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PtARM(enum.Enum):
|
|
|
076f82 |
+ """Supplemental PT_* constants for EM_ARM."""
|
|
|
076f82 |
+ PT_ARM_EXIDX = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PtIA_64(enum.Enum):
|
|
|
076f82 |
+ """Supplemental PT_* constants for EM_IA_64."""
|
|
|
076f82 |
+ PT_IA_64_HP_OPT_ANOT = 0x60000012
|
|
|
076f82 |
+ PT_IA_64_HP_HSL_ANOT = 0x60000013
|
|
|
076f82 |
+ PT_IA_64_HP_STACK = 0x60000014
|
|
|
076f82 |
+ PT_IA_64_ARCHEXT = 0x70000000
|
|
|
076f82 |
+ PT_IA_64_UNWIND = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PtMIPS(enum.Enum):
|
|
|
076f82 |
+ """Supplemental PT_* constants for EM_MIPS."""
|
|
|
076f82 |
+ PT_MIPS_REGINFO = 0x70000000
|
|
|
076f82 |
+ PT_MIPS_RTPROC = 0x70000001
|
|
|
076f82 |
+ PT_MIPS_OPTIONS = 0x70000002
|
|
|
076f82 |
+ PT_MIPS_ABIFLAGS = 0x70000003
|
|
|
076f82 |
+
|
|
|
076f82 |
+class PtPARISC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental PT_* constants for EM_PARISC."""
|
|
|
076f82 |
+ PT_HP_TLS = 0x60000000
|
|
|
076f82 |
+ PT_HP_CORE_NONE = 0x60000001
|
|
|
076f82 |
+ PT_HP_CORE_VERSION = 0x60000002
|
|
|
076f82 |
+ PT_HP_CORE_KERNEL = 0x60000003
|
|
|
076f82 |
+ PT_HP_CORE_COMM = 0x60000004
|
|
|
076f82 |
+ PT_HP_CORE_PROC = 0x60000005
|
|
|
076f82 |
+ PT_HP_CORE_LOADABLE = 0x60000006
|
|
|
076f82 |
+ PT_HP_CORE_STACK = 0x60000007
|
|
|
076f82 |
+ PT_HP_CORE_SHM = 0x60000008
|
|
|
076f82 |
+ PT_HP_CORE_MMF = 0x60000009
|
|
|
076f82 |
+ PT_HP_PARALLEL = 0x60000010
|
|
|
076f82 |
+ PT_HP_FASTBIND = 0x60000011
|
|
|
076f82 |
+ PT_HP_OPT_ANNOT = 0x60000012
|
|
|
076f82 |
+ PT_HP_HSL_ANNOT = 0x60000013
|
|
|
076f82 |
+ PT_HP_STACK = 0x60000014
|
|
|
076f82 |
+ PT_PARISC_ARCHEXT = 0x70000000
|
|
|
076f82 |
+ PT_PARISC_UNWIND = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Dt(_OpenIntEnum):
|
|
|
076f82 |
+ """ELF dynamic segment tags. Type of Dyn.d_val."""
|
|
|
076f82 |
+ DT_NULL = 0
|
|
|
076f82 |
+ DT_NEEDED = 1
|
|
|
076f82 |
+ DT_PLTRELSZ = 2
|
|
|
076f82 |
+ DT_PLTGOT = 3
|
|
|
076f82 |
+ DT_HASH = 4
|
|
|
076f82 |
+ DT_STRTAB = 5
|
|
|
076f82 |
+ DT_SYMTAB = 6
|
|
|
076f82 |
+ DT_RELA = 7
|
|
|
076f82 |
+ DT_RELASZ = 8
|
|
|
076f82 |
+ DT_RELAENT = 9
|
|
|
076f82 |
+ DT_STRSZ = 10
|
|
|
076f82 |
+ DT_SYMENT = 11
|
|
|
076f82 |
+ DT_INIT = 12
|
|
|
076f82 |
+ DT_FINI = 13
|
|
|
076f82 |
+ DT_SONAME = 14
|
|
|
076f82 |
+ DT_RPATH = 15
|
|
|
076f82 |
+ DT_SYMBOLIC = 16
|
|
|
076f82 |
+ DT_REL = 17
|
|
|
076f82 |
+ DT_RELSZ = 18
|
|
|
076f82 |
+ DT_RELENT = 19
|
|
|
076f82 |
+ DT_PLTREL = 20
|
|
|
076f82 |
+ DT_DEBUG = 21
|
|
|
076f82 |
+ DT_TEXTREL = 22
|
|
|
076f82 |
+ DT_JMPREL = 23
|
|
|
076f82 |
+ DT_BIND_NOW = 24
|
|
|
076f82 |
+ DT_INIT_ARRAY = 25
|
|
|
076f82 |
+ DT_FINI_ARRAY = 26
|
|
|
076f82 |
+ DT_INIT_ARRAYSZ = 27
|
|
|
076f82 |
+ DT_FINI_ARRAYSZ = 28
|
|
|
076f82 |
+ DT_RUNPATH = 29
|
|
|
076f82 |
+ DT_FLAGS = 30
|
|
|
076f82 |
+ DT_PREINIT_ARRAY = 32
|
|
|
076f82 |
+ DT_PREINIT_ARRAYSZ = 33
|
|
|
076f82 |
+ DT_SYMTAB_SHNDX = 34
|
|
|
076f82 |
+ DT_GNU_PRELINKED = 0x6ffffdf5
|
|
|
076f82 |
+ DT_GNU_CONFLICTSZ = 0x6ffffdf6
|
|
|
076f82 |
+ DT_GNU_LIBLISTSZ = 0x6ffffdf7
|
|
|
076f82 |
+ DT_CHECKSUM = 0x6ffffdf8
|
|
|
076f82 |
+ DT_PLTPADSZ = 0x6ffffdf9
|
|
|
076f82 |
+ DT_MOVEENT = 0x6ffffdfa
|
|
|
076f82 |
+ DT_MOVESZ = 0x6ffffdfb
|
|
|
076f82 |
+ DT_FEATURE_1 = 0x6ffffdfc
|
|
|
076f82 |
+ DT_POSFLAG_1 = 0x6ffffdfd
|
|
|
076f82 |
+ DT_SYMINSZ = 0x6ffffdfe
|
|
|
076f82 |
+ DT_SYMINENT = 0x6ffffdff
|
|
|
076f82 |
+ DT_GNU_HASH = 0x6ffffef5
|
|
|
076f82 |
+ DT_TLSDESC_PLT = 0x6ffffef6
|
|
|
076f82 |
+ DT_TLSDESC_GOT = 0x6ffffef7
|
|
|
076f82 |
+ DT_GNU_CONFLICT = 0x6ffffef8
|
|
|
076f82 |
+ DT_GNU_LIBLIST = 0x6ffffef9
|
|
|
076f82 |
+ DT_CONFIG = 0x6ffffefa
|
|
|
076f82 |
+ DT_DEPAUDIT = 0x6ffffefb
|
|
|
076f82 |
+ DT_AUDIT = 0x6ffffefc
|
|
|
076f82 |
+ DT_PLTPAD = 0x6ffffefd
|
|
|
076f82 |
+ DT_MOVETAB = 0x6ffffefe
|
|
|
076f82 |
+ DT_SYMINFO = 0x6ffffeff
|
|
|
076f82 |
+ DT_VERSYM = 0x6ffffff0
|
|
|
076f82 |
+ DT_RELACOUNT = 0x6ffffff9
|
|
|
076f82 |
+ DT_RELCOUNT = 0x6ffffffa
|
|
|
076f82 |
+ DT_FLAGS_1 = 0x6ffffffb
|
|
|
076f82 |
+ DT_VERDEF = 0x6ffffffc
|
|
|
076f82 |
+ DT_VERDEFNUM = 0x6ffffffd
|
|
|
076f82 |
+ DT_VERNEED = 0x6ffffffe
|
|
|
076f82 |
+ DT_VERNEEDNUM = 0x6fffffff
|
|
|
076f82 |
+ DT_AUXILIARY = 0x7ffffffd
|
|
|
076f82 |
+ DT_FILTER = 0x7fffffff
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtAARCH64(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_AARCH64."""
|
|
|
076f82 |
+ DT_AARCH64_BTI_PLT = 0x70000001
|
|
|
076f82 |
+ DT_AARCH64_PAC_PLT = 0x70000003
|
|
|
076f82 |
+ DT_AARCH64_VARIANT_PCS = 0x70000005
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtALPHA(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_ALPHA."""
|
|
|
076f82 |
+ DT_ALPHA_PLTRO = 0x70000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtALTERA_NIOS2(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_ALTERA_NIOS2."""
|
|
|
076f82 |
+ DT_NIOS2_GP = 0x70000002
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtIA_64(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_IA_64."""
|
|
|
076f82 |
+ DT_IA_64_PLT_RESERVE = 0x70000000
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtMIPS(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_MIPS."""
|
|
|
076f82 |
+ DT_MIPS_RLD_VERSION = 0x70000001
|
|
|
076f82 |
+ DT_MIPS_TIME_STAMP = 0x70000002
|
|
|
076f82 |
+ DT_MIPS_ICHECKSUM = 0x70000003
|
|
|
076f82 |
+ DT_MIPS_IVERSION = 0x70000004
|
|
|
076f82 |
+ DT_MIPS_FLAGS = 0x70000005
|
|
|
076f82 |
+ DT_MIPS_BASE_ADDRESS = 0x70000006
|
|
|
076f82 |
+ DT_MIPS_MSYM = 0x70000007
|
|
|
076f82 |
+ DT_MIPS_CONFLICT = 0x70000008
|
|
|
076f82 |
+ DT_MIPS_LIBLIST = 0x70000009
|
|
|
076f82 |
+ DT_MIPS_LOCAL_GOTNO = 0x7000000a
|
|
|
076f82 |
+ DT_MIPS_CONFLICTNO = 0x7000000b
|
|
|
076f82 |
+ DT_MIPS_LIBLISTNO = 0x70000010
|
|
|
076f82 |
+ DT_MIPS_SYMTABNO = 0x70000011
|
|
|
076f82 |
+ DT_MIPS_UNREFEXTNO = 0x70000012
|
|
|
076f82 |
+ DT_MIPS_GOTSYM = 0x70000013
|
|
|
076f82 |
+ DT_MIPS_HIPAGENO = 0x70000014
|
|
|
076f82 |
+ DT_MIPS_RLD_MAP = 0x70000016
|
|
|
076f82 |
+ DT_MIPS_DELTA_CLASS = 0x70000017
|
|
|
076f82 |
+ DT_MIPS_DELTA_CLASS_NO = 0x70000018
|
|
|
076f82 |
+ DT_MIPS_DELTA_INSTANCE = 0x70000019
|
|
|
076f82 |
+ DT_MIPS_DELTA_INSTANCE_NO = 0x7000001a
|
|
|
076f82 |
+ DT_MIPS_DELTA_RELOC = 0x7000001b
|
|
|
076f82 |
+ DT_MIPS_DELTA_RELOC_NO = 0x7000001c
|
|
|
076f82 |
+ DT_MIPS_DELTA_SYM = 0x7000001d
|
|
|
076f82 |
+ DT_MIPS_DELTA_SYM_NO = 0x7000001e
|
|
|
076f82 |
+ DT_MIPS_DELTA_CLASSSYM = 0x70000020
|
|
|
076f82 |
+ DT_MIPS_DELTA_CLASSSYM_NO = 0x70000021
|
|
|
076f82 |
+ DT_MIPS_CXX_FLAGS = 0x70000022
|
|
|
076f82 |
+ DT_MIPS_PIXIE_INIT = 0x70000023
|
|
|
076f82 |
+ DT_MIPS_SYMBOL_LIB = 0x70000024
|
|
|
076f82 |
+ DT_MIPS_LOCALPAGE_GOTIDX = 0x70000025
|
|
|
076f82 |
+ DT_MIPS_LOCAL_GOTIDX = 0x70000026
|
|
|
076f82 |
+ DT_MIPS_HIDDEN_GOTIDX = 0x70000027
|
|
|
076f82 |
+ DT_MIPS_PROTECTED_GOTIDX = 0x70000028
|
|
|
076f82 |
+ DT_MIPS_OPTIONS = 0x70000029
|
|
|
076f82 |
+ DT_MIPS_INTERFACE = 0x7000002a
|
|
|
076f82 |
+ DT_MIPS_DYNSTR_ALIGN = 0x7000002b
|
|
|
076f82 |
+ DT_MIPS_INTERFACE_SIZE = 0x7000002c
|
|
|
076f82 |
+ DT_MIPS_RLD_TEXT_RESOLVE_ADDR = 0x7000002d
|
|
|
076f82 |
+ DT_MIPS_PERF_SUFFIX = 0x7000002e
|
|
|
076f82 |
+ DT_MIPS_COMPACT_SIZE = 0x7000002f
|
|
|
076f82 |
+ DT_MIPS_GP_VALUE = 0x70000030
|
|
|
076f82 |
+ DT_MIPS_AUX_DYNAMIC = 0x70000031
|
|
|
076f82 |
+ DT_MIPS_PLTGOT = 0x70000032
|
|
|
076f82 |
+ DT_MIPS_RWPLT = 0x70000034
|
|
|
076f82 |
+ DT_MIPS_RLD_MAP_REL = 0x70000035
|
|
|
076f82 |
+ DT_MIPS_XHASH = 0x70000036
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtPPC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_PPC."""
|
|
|
076f82 |
+ DT_PPC_GOT = 0x70000000
|
|
|
076f82 |
+ DT_PPC_OPT = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtPPC64(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_PPC64."""
|
|
|
076f82 |
+ DT_PPC64_GLINK = 0x70000000
|
|
|
076f82 |
+ DT_PPC64_OPD = 0x70000001
|
|
|
076f82 |
+ DT_PPC64_OPDSZ = 0x70000002
|
|
|
076f82 |
+ DT_PPC64_OPT = 0x70000003
|
|
|
076f82 |
+
|
|
|
076f82 |
+class DtSPARC(enum.Enum):
|
|
|
076f82 |
+ """Supplemental DT_* constants for EM_SPARC."""
|
|
|
076f82 |
+ DT_SPARC_REGISTER = 0x70000001
|
|
|
076f82 |
+
|
|
|
076f82 |
+class StInfo:
|
|
|
076f82 |
+ """ELF symbol binding and type. Type of the Sym.st_info field."""
|
|
|
076f82 |
+ def __init__(self, arg0, arg1=None):
|
|
|
076f82 |
+ if isinstance(arg0, int) and arg1 is None:
|
|
|
076f82 |
+ self.bind = Stb(arg0 >> 4)
|
|
|
076f82 |
+ self.type = Stt(arg0 & 15)
|
|
|
076f82 |
+ else:
|
|
|
076f82 |
+ self.bind = Stb(arg0)
|
|
|
076f82 |
+ self.type = Stt(arg1)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def value(self):
|
|
|
076f82 |
+ """Returns the raw value for the bind/type combination."""
|
|
|
076f82 |
+ return (self.bind.value() << 4) | (self.type.value())
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Type in an ELF file. Used for deserialization.
|
|
|
076f82 |
+_Layout = collections.namedtuple('_Layout', 'unpack size')
|
|
|
076f82 |
+
|
|
|
076f82 |
+def _define_layouts(baseclass: type, layout32: str, layout64: str,
|
|
|
076f82 |
+ types=None, fields32=None):
|
|
|
076f82 |
+ """Assign variants dict to baseclass.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ The variants dict is indexed by (ElfClass, ElfData) pairs, and its
|
|
|
076f82 |
+ values are _Layout instances.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ struct32 = struct.Struct(layout32)
|
|
|
076f82 |
+ struct64 = struct.Struct(layout64)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ # Check that the struct formats yield the right number of components.
|
|
|
076f82 |
+ for s in (struct32, struct64):
|
|
|
076f82 |
+ example = s.unpack(b' ' * s.size)
|
|
|
076f82 |
+ if len(example) != len(baseclass._fields):
|
|
|
076f82 |
+ raise ValueError('{!r} yields wrong field count: {} != {}'.format(
|
|
|
076f82 |
+ s.format, len(example), len(baseclass._fields)))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ # Check that field names in types are correct.
|
|
|
076f82 |
+ if types is None:
|
|
|
076f82 |
+ types = ()
|
|
|
076f82 |
+ for n in types:
|
|
|
076f82 |
+ if n not in baseclass._fields:
|
|
|
076f82 |
+ raise ValueError('{} does not have field {!r}'.format(
|
|
|
076f82 |
+ baseclass.__name__, n))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ if fields32 is not None \
|
|
|
076f82 |
+ and set(fields32) != set(baseclass._fields):
|
|
|
076f82 |
+ raise ValueError('{!r} is not a permutation of the fields {!r}'.format(
|
|
|
076f82 |
+ fields32, baseclass._fields))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def unique_name(name, used_names = (set((baseclass.__name__,))
|
|
|
076f82 |
+ | set(baseclass._fields)
|
|
|
076f82 |
+ | {n.__name__
|
|
|
076f82 |
+ for n in (types or {}).values()})):
|
|
|
076f82 |
+ """Find a name that is not used for a class or field name."""
|
|
|
076f82 |
+ candidate = name
|
|
|
076f82 |
+ n = 0
|
|
|
076f82 |
+ while candidate in used_names:
|
|
|
076f82 |
+ n += 1
|
|
|
076f82 |
+ candidate = '{}{}'.format(name, n)
|
|
|
076f82 |
+ used_names.add(candidate)
|
|
|
076f82 |
+ return candidate
|
|
|
076f82 |
+
|
|
|
076f82 |
+ blob_name = unique_name('blob')
|
|
|
076f82 |
+ struct_unpack_name = unique_name('struct_unpack')
|
|
|
076f82 |
+ comps_name = unique_name('comps')
|
|
|
076f82 |
+
|
|
|
076f82 |
+ layouts = {}
|
|
|
076f82 |
+ for (bits, elfclass, layout, fields) in (
|
|
|
076f82 |
+ (32, ElfClass.ELFCLASS32, layout32, fields32),
|
|
|
076f82 |
+ (64, ElfClass.ELFCLASS64, layout64, None),
|
|
|
076f82 |
+ ):
|
|
|
076f82 |
+ for (elfdata, structprefix, funcsuffix) in (
|
|
|
076f82 |
+ (ElfData.ELFDATA2LSB, '<', 'LE'),
|
|
|
076f82 |
+ (ElfData.ELFDATA2MSB, '>', 'BE'),
|
|
|
076f82 |
+ ):
|
|
|
076f82 |
+ env = {
|
|
|
076f82 |
+ baseclass.__name__: baseclass,
|
|
|
076f82 |
+ struct_unpack_name: struct.unpack,
|
|
|
076f82 |
+ }
|
|
|
076f82 |
+
|
|
|
076f82 |
+ # Add the type converters.
|
|
|
076f82 |
+ if types:
|
|
|
076f82 |
+ for cls in types.values():
|
|
|
076f82 |
+ env[cls.__name__] = cls
|
|
|
076f82 |
+
|
|
|
076f82 |
+ funcname = ''.join(
|
|
|
076f82 |
+ ('unpack_', baseclass.__name__, str(bits), funcsuffix))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ code = '''
|
|
|
076f82 |
+def {funcname}({blob_name}):
|
|
|
076f82 |
+'''.format(funcname=funcname, blob_name=blob_name)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ indent = ' ' * 4
|
|
|
076f82 |
+ unpack_call = '{}({!r}, {})'.format(
|
|
|
076f82 |
+ struct_unpack_name, structprefix + layout, blob_name)
|
|
|
076f82 |
+ field_names = ', '.join(baseclass._fields)
|
|
|
076f82 |
+ if types is None and fields is None:
|
|
|
076f82 |
+ code += '{}return {}({})\n'.format(
|
|
|
076f82 |
+ indent, baseclass.__name__, unpack_call)
|
|
|
076f82 |
+ else:
|
|
|
076f82 |
+ # Destructuring tuple assignment.
|
|
|
076f82 |
+ if fields is None:
|
|
|
076f82 |
+ code += '{}{} = {}\n'.format(
|
|
|
076f82 |
+ indent, field_names, unpack_call)
|
|
|
076f82 |
+ else:
|
|
|
076f82 |
+ # Use custom field order.
|
|
|
076f82 |
+ code += '{}{} = {}\n'.format(
|
|
|
076f82 |
+ indent, ', '.join(fields), unpack_call)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ # Perform the type conversions.
|
|
|
076f82 |
+ for n in baseclass._fields:
|
|
|
076f82 |
+ if n in types:
|
|
|
076f82 |
+ code += '{}{} = {}({})\n'.format(
|
|
|
076f82 |
+ indent, n, types[n].__name__, n)
|
|
|
076f82 |
+ # Create the named tuple.
|
|
|
076f82 |
+ code += '{}return {}({})\n'.format(
|
|
|
076f82 |
+ indent, baseclass.__name__, field_names)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ exec(code, env)
|
|
|
076f82 |
+ layouts[(elfclass, elfdata)] = _Layout(
|
|
|
076f82 |
+ env[funcname], struct.calcsize(layout))
|
|
|
076f82 |
+ baseclass.layouts = layouts
|
|
|
076f82 |
+
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to EI_* indices into Elf*_Ehdr.e_indent.
|
|
|
076f82 |
+class Ident(collections.namedtuple('Ident',
|
|
|
076f82 |
+ 'ei_mag ei_class ei_data ei_version ei_osabi ei_abiversion ei_pad')):
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def __new__(cls, *args):
|
|
|
076f82 |
+ """Construct an object from a blob or its constituent fields."""
|
|
|
076f82 |
+ if len(args) == 1:
|
|
|
076f82 |
+ return cls.unpack(args[0])
|
|
|
076f82 |
+ return cls.__base__.__new__(cls, *args)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ @staticmethod
|
|
|
076f82 |
+ def unpack(blob: memoryview) -> 'Ident':
|
|
|
076f82 |
+ """Parse raws data into a tuple."""
|
|
|
076f82 |
+ ei_mag, ei_class, ei_data, ei_version, ei_osabi, ei_abiversion, \
|
|
|
076f82 |
+ ei_pad = struct.unpack('4s5B7s', blob)
|
|
|
076f82 |
+ return Ident(ei_mag, ElfClass(ei_class), ElfData(ei_data),
|
|
|
076f82 |
+ ei_version, ei_osabi, ei_abiversion, ei_pad)
|
|
|
076f82 |
+ size = 16
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Ehdr and Elf64_Ehdr.
|
|
|
076f82 |
+Ehdr = collections.namedtuple('Ehdr',
|
|
|
076f82 |
+ 'e_ident e_type e_machine e_version e_entry e_phoff e_shoff e_flags'
|
|
|
076f82 |
+ + ' e_ehsize e_phentsize e_phnum e_shentsize e_shnum e_shstrndx')
|
|
|
076f82 |
+_define_layouts(Ehdr,
|
|
|
076f82 |
+ layout32='16s2H5I6H',
|
|
|
076f82 |
+ layout64='16s2HI3QI6H',
|
|
|
076f82 |
+ types=dict(e_ident=Ident,
|
|
|
076f82 |
+ e_machine=Machine,
|
|
|
076f82 |
+ e_type=Et,
|
|
|
076f82 |
+ e_shstrndx=Shn))
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Phdr and Elf64_Pdhr. Order follows the latter.
|
|
|
076f82 |
+Phdr = collections.namedtuple('Phdr',
|
|
|
076f82 |
+ 'p_type p_flags p_offset p_vaddr p_paddr p_filesz p_memsz p_align')
|
|
|
076f82 |
+_define_layouts(Phdr,
|
|
|
076f82 |
+ layout32='8I',
|
|
|
076f82 |
+ fields32=('p_type', 'p_offset', 'p_vaddr', 'p_paddr',
|
|
|
076f82 |
+ 'p_filesz', 'p_memsz', 'p_flags', 'p_align'),
|
|
|
076f82 |
+ layout64='2I6Q',
|
|
|
076f82 |
+ types=dict(p_type=Pt, p_flags=Pf))
|
|
|
076f82 |
+
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Shdr and Elf64_Shdr.
|
|
|
076f82 |
+class Shdr(collections.namedtuple('Shdr',
|
|
|
076f82 |
+ 'sh_name sh_type sh_flags sh_addr sh_offset sh_size sh_link sh_info'
|
|
|
076f82 |
+ + ' sh_addralign sh_entsize')):
|
|
|
076f82 |
+ def resolve(self, strtab: 'StringTable') -> 'Shdr':
|
|
|
076f82 |
+ """Resolve sh_name using a string table."""
|
|
|
076f82 |
+ return self.__class__(strtab.get(self[0]), *self[1:])
|
|
|
076f82 |
+_define_layouts(Shdr,
|
|
|
076f82 |
+ layout32='10I',
|
|
|
076f82 |
+ layout64='2I4Q2I2Q',
|
|
|
076f82 |
+ types=dict(sh_type=Sht,
|
|
|
076f82 |
+ sh_flags=Shf,
|
|
|
076f82 |
+ sh_link=Shn))
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Dyn and Elf64_Dyn. The nesting through the
|
|
|
076f82 |
+# d_un union is skipped, and d_ptr is missing (its representation in
|
|
|
076f82 |
+# Python would be identical to d_val).
|
|
|
076f82 |
+Dyn = collections.namedtuple('Dyn', 'd_tag d_val')
|
|
|
076f82 |
+_define_layouts(Dyn,
|
|
|
076f82 |
+ layout32='2i',
|
|
|
076f82 |
+ layout64='2q',
|
|
|
076f82 |
+ types=dict(d_tag=Dt))
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Sym and Elf64_Sym.
|
|
|
076f82 |
+class Sym(collections.namedtuple('Sym',
|
|
|
076f82 |
+ 'st_name st_info st_other st_shndx st_value st_size')):
|
|
|
076f82 |
+ def resolve(self, strtab: 'StringTable') -> 'Sym':
|
|
|
076f82 |
+ """Resolve st_name using a string table."""
|
|
|
076f82 |
+ return self.__class__(strtab.get(self[0]), *self[1:])
|
|
|
076f82 |
+_define_layouts(Sym,
|
|
|
076f82 |
+ layout32='3I2BH',
|
|
|
076f82 |
+ layout64='I2BH2Q',
|
|
|
076f82 |
+ fields32=('st_name', 'st_value', 'st_size', 'st_info',
|
|
|
076f82 |
+ 'st_other', 'st_shndx'),
|
|
|
076f82 |
+ types=dict(st_shndx=Shn,
|
|
|
076f82 |
+ st_info=StInfo))
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Rel and Elf64_Rel.
|
|
|
076f82 |
+Rel = collections.namedtuple('Rel', 'r_offset r_info')
|
|
|
076f82 |
+_define_layouts(Rel,
|
|
|
076f82 |
+ layout32='2I',
|
|
|
076f82 |
+ layout64='2Q')
|
|
|
076f82 |
+
|
|
|
076f82 |
+# Corresponds to Elf32_Rel and Elf64_Rel.
|
|
|
076f82 |
+Rela = collections.namedtuple('Rela', 'r_offset r_info r_addend')
|
|
|
076f82 |
+_define_layouts(Rela,
|
|
|
076f82 |
+ layout32='3I',
|
|
|
076f82 |
+ layout64='3Q')
|
|
|
076f82 |
+
|
|
|
076f82 |
+class StringTable:
|
|
|
076f82 |
+ """ELF string table."""
|
|
|
076f82 |
+ def __init__(self, blob):
|
|
|
076f82 |
+ """Create a new string table backed by the data in the blob.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ blob: a memoryview-like object
|
|
|
076f82 |
+
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ self.blob = blob
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def get(self, index) -> bytes:
|
|
|
076f82 |
+ """Returns the null-terminated byte string at the index."""
|
|
|
076f82 |
+ blob = self.blob
|
|
|
076f82 |
+ endindex = index
|
|
|
076f82 |
+ while True:
|
|
|
076f82 |
+ if blob[endindex] == 0:
|
|
|
076f82 |
+ return bytes(blob[index:endindex])
|
|
|
076f82 |
+ endindex += 1
|
|
|
076f82 |
+
|
|
|
076f82 |
+class Image:
|
|
|
076f82 |
+ """ELF image parser."""
|
|
|
076f82 |
+ def __init__(self, image):
|
|
|
076f82 |
+ """Create an ELF image from binary image data.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ image: a memoryview-like object that supports efficient range
|
|
|
076f82 |
+ subscripting.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ self.image = image
|
|
|
076f82 |
+ ident = self.read(Ident, 0)
|
|
|
076f82 |
+ classdata = (ident.ei_class, ident.ei_data)
|
|
|
076f82 |
+ # Set self.Ehdr etc. to the subtypes with the right parsers.
|
|
|
076f82 |
+ for typ in (Ehdr, Phdr, Shdr, Dyn, Sym, Rel, Rela):
|
|
|
076f82 |
+ setattr(self, typ.__name__, typ.layouts.get(classdata, None))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ if self.Ehdr is not None:
|
|
|
076f82 |
+ self.ehdr = self.read(self.Ehdr, 0)
|
|
|
076f82 |
+ self._shdr_num = self._compute_shdr_num()
|
|
|
076f82 |
+ else:
|
|
|
076f82 |
+ self.ehdr = None
|
|
|
076f82 |
+ self._shdr_num = 0
|
|
|
076f82 |
+
|
|
|
076f82 |
+ self._section = {}
|
|
|
076f82 |
+ self._stringtab = {}
|
|
|
076f82 |
+
|
|
|
076f82 |
+ if self._shdr_num > 0:
|
|
|
076f82 |
+ self._shdr_strtab = self._find_shdr_strtab()
|
|
|
076f82 |
+ else:
|
|
|
076f82 |
+ self._shdr_strtab = None
|
|
|
076f82 |
+
|
|
|
076f82 |
+ @staticmethod
|
|
|
076f82 |
+ def readfile(path: str) -> 'Image':
|
|
|
076f82 |
+ """Reads the ELF file at the specified path."""
|
|
|
076f82 |
+ with open(path, 'rb') as inp:
|
|
|
076f82 |
+ return Image(memoryview(inp.read()))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def _compute_shdr_num(self) -> int:
|
|
|
076f82 |
+ """Computes the actual number of section headers."""
|
|
|
076f82 |
+ shnum = self.ehdr.e_shnum
|
|
|
076f82 |
+ if shnum == 0:
|
|
|
076f82 |
+ if self.ehdr.e_shoff == 0 or self.ehdr.e_shentsize == 0:
|
|
|
076f82 |
+ # No section headers.
|
|
|
076f82 |
+ return 0
|
|
|
076f82 |
+ # Otherwise the extension mechanism is used (which may be
|
|
|
076f82 |
+ # needed because e_shnum is just 16 bits).
|
|
|
076f82 |
+ return self.read(self.Shdr, self.ehdr.e_shoff).sh_size
|
|
|
076f82 |
+ return shnum
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def _find_shdr_strtab(self) -> StringTable:
|
|
|
076f82 |
+ """Finds the section header string table (maybe via extensions)."""
|
|
|
076f82 |
+ shstrndx = self.ehdr.e_shstrndx
|
|
|
076f82 |
+ if shstrndx == Shn.SHN_XINDEX:
|
|
|
076f82 |
+ shstrndx = self.read(self.Shdr, self.ehdr.e_shoff).sh_link
|
|
|
076f82 |
+ return self._find_stringtab(shstrndx)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def read(self, typ: type, offset:int ):
|
|
|
076f82 |
+ """Reads an object at a specific offset.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ The type must have been enhanced using _define_variants.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ return typ.unpack(self.image[offset: offset + typ.size])
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def phdrs(self) -> Phdr:
|
|
|
076f82 |
+ """Generator iterating over the program headers."""
|
|
|
076f82 |
+ if self.ehdr is None:
|
|
|
076f82 |
+ return
|
|
|
076f82 |
+ size = self.ehdr.e_phentsize
|
|
|
076f82 |
+ if size != self.Phdr.size:
|
|
|
076f82 |
+ raise ValueError('Unexpected Phdr size in ELF header: {} != {}'
|
|
|
076f82 |
+ .format(size, self.Phdr.size))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ offset = self.ehdr.e_phoff
|
|
|
076f82 |
+ for _ in range(self.ehdr.e_phnum):
|
|
|
076f82 |
+ yield self.read(self.Phdr, offset)
|
|
|
076f82 |
+ offset += size
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def shdrs(self, resolve: bool=True) -> Shdr:
|
|
|
076f82 |
+ """Generator iterating over the section headers.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ If resolve, section names are automatically translated
|
|
|
076f82 |
+ using the section header string table.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ if self._shdr_num == 0:
|
|
|
076f82 |
+ return
|
|
|
076f82 |
+
|
|
|
076f82 |
+ size = self.ehdr.e_shentsize
|
|
|
076f82 |
+ if size != self.Shdr.size:
|
|
|
076f82 |
+ raise ValueError('Unexpected Shdr size in ELF header: {} != {}'
|
|
|
076f82 |
+ .format(size, self.Shdr.size))
|
|
|
076f82 |
+
|
|
|
076f82 |
+ offset = self.ehdr.e_shoff
|
|
|
076f82 |
+ for _ in range(self._shdr_num):
|
|
|
076f82 |
+ shdr = self.read(self.Shdr, offset)
|
|
|
076f82 |
+ if resolve:
|
|
|
076f82 |
+ shdr = shdr.resolve(self._shdr_strtab)
|
|
|
076f82 |
+ yield shdr
|
|
|
076f82 |
+ offset += size
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def dynamic(self) -> Dyn:
|
|
|
076f82 |
+ """Generator iterating over the dynamic segment."""
|
|
|
076f82 |
+ for phdr in self.phdrs():
|
|
|
076f82 |
+ if phdr.p_type == Pt.PT_DYNAMIC:
|
|
|
076f82 |
+ # Pick the first dynamic segment, like the loader.
|
|
|
076f82 |
+ if phdr.p_filesz == 0:
|
|
|
076f82 |
+ # Probably separated debuginfo.
|
|
|
076f82 |
+ return
|
|
|
076f82 |
+ offset = phdr.p_offset
|
|
|
076f82 |
+ end = offset + phdr.p_memsz
|
|
|
076f82 |
+ size = self.Dyn.size
|
|
|
076f82 |
+ while True:
|
|
|
076f82 |
+ next_offset = offset + size
|
|
|
076f82 |
+ if next_offset > end:
|
|
|
076f82 |
+ raise ValueError(
|
|
|
076f82 |
+ 'Dynamic segment size {} is not a multiple of Dyn size {}'.format(
|
|
|
076f82 |
+ phdr.p_memsz, size))
|
|
|
076f82 |
+ yield self.read(self.Dyn, offset)
|
|
|
076f82 |
+ if next_offset == end:
|
|
|
076f82 |
+ return
|
|
|
076f82 |
+ offset = next_offset
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def syms(self, shdr: Shdr, resolve: bool=True) -> Sym:
|
|
|
076f82 |
+ """A generator iterating over a symbol table.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ If resolve, symbol names are automatically translated using
|
|
|
076f82 |
+ the string table for the symbol table.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ assert shdr.sh_type == Sht.SHT_SYMTAB
|
|
|
076f82 |
+ size = shdr.sh_entsize
|
|
|
076f82 |
+ if size != self.Sym.size:
|
|
|
076f82 |
+ raise ValueError('Invalid symbol table entry size {}'.format(size))
|
|
|
076f82 |
+ offset = shdr.sh_offset
|
|
|
076f82 |
+ end = shdr.sh_offset + shdr.sh_size
|
|
|
076f82 |
+ if resolve:
|
|
|
076f82 |
+ strtab = self._find_stringtab(shdr.sh_link)
|
|
|
076f82 |
+ while offset < end:
|
|
|
076f82 |
+ sym = self.read(self.Sym, offset)
|
|
|
076f82 |
+ if resolve:
|
|
|
076f82 |
+ sym = sym.resolve(strtab)
|
|
|
076f82 |
+ yield sym
|
|
|
076f82 |
+ offset += size
|
|
|
076f82 |
+ if offset != end:
|
|
|
076f82 |
+ raise ValueError('Symbol table is not a multiple of entry size')
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def lookup_string(self, strtab_index: int, strtab_offset: int) -> bytes:
|
|
|
076f82 |
+ """Looks up a string in a string table identified by its link index."""
|
|
|
076f82 |
+ try:
|
|
|
076f82 |
+ strtab = self._stringtab[strtab_index]
|
|
|
076f82 |
+ except KeyError:
|
|
|
076f82 |
+ strtab = self._find_stringtab(strtab_index)
|
|
|
076f82 |
+ return strtab.get(strtab_offset)
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def find_section(self, shndx: Shn) -> Shdr:
|
|
|
076f82 |
+ """Returns the section header for the indexed section.
|
|
|
076f82 |
+
|
|
|
076f82 |
+ The section name is not resolved.
|
|
|
076f82 |
+ """
|
|
|
076f82 |
+ try:
|
|
|
076f82 |
+ return self._section[shndx]
|
|
|
076f82 |
+ except KeyError:
|
|
|
076f82 |
+ pass
|
|
|
076f82 |
+ if shndx in Shn:
|
|
|
076f82 |
+ raise ValueError('Reserved section index {}'.format(shndx))
|
|
|
076f82 |
+ idx = shndx.value
|
|
|
076f82 |
+ if idx < 0 or idx > self._shdr_num:
|
|
|
076f82 |
+ raise ValueError('Section index {} out of range [0, {})'.format(
|
|
|
076f82 |
+ idx, self._shdr_num))
|
|
|
076f82 |
+ shdr = self.read(
|
|
|
076f82 |
+ self.Shdr, self.ehdr.e_shoff + idx * self.Shdr.size)
|
|
|
076f82 |
+ self._section[shndx] = shdr
|
|
|
076f82 |
+ return shdr
|
|
|
076f82 |
+
|
|
|
076f82 |
+ def _find_stringtab(self, sh_link: int) -> StringTable:
|
|
|
076f82 |
+ if sh_link in self._stringtab:
|
|
|
076f82 |
+ return self._stringtab
|
|
|
076f82 |
+ if sh_link < 0 or sh_link >= self._shdr_num:
|
|
|
076f82 |
+ raise ValueError('Section index {} out of range [0, {})'.format(
|
|
|
076f82 |
+ sh_link, self._shdr_num))
|
|
|
076f82 |
+ shdr = self.read(
|
|
|
076f82 |
+ self.Shdr, self.ehdr.e_shoff + sh_link * self.Shdr.size)
|
|
|
076f82 |
+ if shdr.sh_type != Sht.SHT_STRTAB:
|
|
|
076f82 |
+ raise ValueError(
|
|
|
076f82 |
+ 'Section {} is not a string table: {}'.format(
|
|
|
076f82 |
+ sh_link, shdr.sh_type))
|
|
|
076f82 |
+ strtab = StringTable(
|
|
|
076f82 |
+ self.image[shdr.sh_offset:shdr.sh_offset + shdr.sh_size])
|
|
|
076f82 |
+ # This could retrain essentially arbitrary amounts of data,
|
|
|
076f82 |
+ # but caching string tables seems important for performance.
|
|
|
076f82 |
+ self._stringtab[sh_link] = strtab
|
|
|
076f82 |
+ return strtab
|
|
|
076f82 |
+
|
|
|
076f82 |
+
|
|
|
076f82 |
+__all__ = [name for name in dir() if name[0].isupper()]
|