The elf-knowledge.h contains various macros to deal with specific ELF
knowledge needed to interpret some ELF constructs that can be ambigious
depending on architecture ABI. Update the comment of SH_ENTSIZE_HASH
to add a more technical description of why it is needed.
Signed-off-by: Mark Wielaard <mark@klomp.org>
GNU Build Attribute ELF Notes are generated by the GCC annobin plugin
and described at https://fedoraproject.org/wiki/Toolchain/Watermark
Unfortunately the constants aren't yet described in the standard glibc
elf.h so they have been added to the elfutils specific elf-knowledge.h.
The notes abuse the name owner field to encode some data not in the
description. This makes it a bit hard to parse. We have to match the
note owner name prefix (to "GA") to be sure the type is valid. We also
cannot rely on the owner name being a valid C string since the attribute
name and value can contain zero (terminators). So pass around namesz
to the ebl note parsing functions.
eu-elflint will recognize and eu-readelf -n will now show the notes:
Note section [27] '.gnu.build.attributes' of 56080 bytes at offset 0x114564:
Owner Data size Type
GA 16 GNU Build Attribute OPEN
Address Range: 0x2f30f - 0x2f30f
VERSION: "3p8"
GA 0 GNU Build Attribute OPEN
TOOL: "gcc 8.2.1 20180801"
GA 0 GNU Build Attribute OPEN
"GOW": 45
GA 0 GNU Build Attribute OPEN
STACK_PROT: 0
GA 0 GNU Build Attribute OPEN
"stack_clash": TRUE
GA 0 GNU Build Attribute OPEN
"cf_protection": 0
GA 0 GNU Build Attribute OPEN
"GLIBCXX_ASSERTIONS": TRUE
GA 0 GNU Build Attribute OPEN
"FORTIFY": 0
GA 0 GNU Build Attribute OPEN
PIC: 3
GA 0 GNU Build Attribute OPEN
SHORT_ENUM: FALSE
GA 0 GNU Build Attribute OPEN
ABI: c001100000012
GA 0 GNU Build Attribute OPEN
"stack_realign": FALSE
A new test was added to run-readelf -n for the existing annobin file.
Signed-off-by: Mark Wielaard <mark@klomp.org>
Nobody has hacked on eu-ld in a very long time. It didn't really work.
And we didn't install it by default in the spec file. Remove sources,
the build rules and any (now) unused code.
Signed-off-by: Mark Wielaard <mjw@redhat.com>
Since elf_strptr can fail and return NULL we should always check the result
before usage. Debug sections are only handled by section name, so make sure
the name actually exists.
Signed-off-by: Mark Wielaard <mjw@redhat.com>
* Change name from "Red Hat elfutils" to "elfutils".
* Update license of standalone tools and test from GPLv2 to GPLv3+.
* Change license of libraries from GPLv2+exception to GPLv2/LGPLv3+.
* Add Developer Certificate of Origin based contributor policy.
top-level:
- COPYING: Upgraded from GPLv2 to GPLv3.
- CONTRIBUTING, COPYING-GPLv2, COPYING-LGPLv3: New files.
- NEWS: Added note about new contribution and license policy.
- Makefile.am: Updated to GPLv3, added new files to EXTRA_DIST.
- configure.ac: Update to GPLv3, changed AC_INIT name to 'elfutils'.
backends, lib, libasm, libcpu, libdw, libdwfl, libebl, libelf:
- All files updated to GPLv2/LGPLv3+. Except some very small files
(<5 lines) which didn't have any headers at all before, the linker
.maps files and the libcpu/defs files which only contain data and
libelf/elf.h which comes from glibc and is under LGPLv2+.
config:
- elfutils.spec.in: Add new License: headers and new %doc files.
- Update all license headers to GPLv2/LGPLv3+ for files used by libs.
src, tests:
- All files updated to GPLv3+. Except for the test bz2 data files, the
linker maps and script files and some very small files (<5 lines)
that don't have any headers.
Signed-off-by: Richard Fontana <rfontana@redhat.com>
Signed-off-by: Mark Wielaard <mjw@redhat.com>
lizhenlin