Add check for libdebuginfod 0.188 in AC_DEBUGINFOD and if found
define macro HAVE_LIBDEBUGINFOD_FIND_SECTION.
This macro indicates support for downloading ELF sections from
debuginfod servers.
Any code using AC_DEBUGINFOD from this dir is using -I../config when
running aclocal, so an explicit include on pkg.m4 is unnecessary:
aclocal will find the pkg.m4 in this dir just as easily. This is
seen in the only two dirs that use AC_DEBUGINFOD (binutils & gdb)
as their aclocal.m4 already has m4_include on config m4 files.
The include as written only works if aclocal is run on a dir that is
at the same level of config/. Any other depth will fail.
./
|-- config/
|-- binutils/ # works
|-- gdb/ # works
`-- sim/ # works
`-- <port>/ # fails
It fails even if AC_DEBUGINFOD itself isn't used:
sim/bfin/ $ aclocal -I../../config
aclocal-1.15: error: ../../config/debuginfod.m4:8: file '../config/pkg.m4' does not exist
debuginfod is a lightweight web service that indexes ELF/DWARF
debugging resources by build-id and serves them over HTTP. This patch
enables objdump and readelf to query debuginfod servers when they are
otherwise not able to find separate debug files. Binutils can be built
with debuginfod using the --with-debuginfod configure option. This
requires that libdebuginfod be installed and found at configure time.
debuginfod is packaged with elfutils, starting with version 0.178. For
more information see https://sourceware.org/elfutils/.
toplevel* config/debuginfod.m4: New file. Add macro AC_DEBUGINFOD. Adds
new configure option --with-debuginfod.
* configure: Regenerate.
* configure.ac: Call AC_DEBUGINFOD.
binutils* Makefile.am (readelf_LDADD, objdump_LDADD): Add libdebuginfod.
* Makefile.in: Regenerate.
* NEWS: Update.
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac: Call AC_DEBUGINFOD.
* doc/Makefile.in: Regenerate.
* doc/binutils.texi: Add section on using binutils
with debuginfod.
* dwarf.c (debuginfod_fetch_separate_debug_info): New function.
Query debuginfod servers for the target debug file.
(load_separate_debug_info): Call
debuginfod_fetch_separate_debug_info if configured with
debuginfod.
(load_separate_debug_files): Add file argument to
load_separate_debug_info calls.
* dwarf.h (get_build_id): Add declaration.
* objdump.c (get_build_id): New function. Get build-id of file.
* readelf.c (get_build_id): Likewise.
* testsuite/binutils-all/debuginfod.exp: New tests.
* testsuite/binutils-all/linkdebug.s: Add .note.gnu.build-id
section.
