Commit Graph

46 Commits

Author SHA1 Message Date
Mark Johnston
7bb441c866 libdwarf: Add some constants from DWARF 5
This is not exhaustive - DWARF 5 has some new enumeration types not
implemented here - but I think I caught all the ones that are extended
in DWARF 5, plus the new compilation unit type (DW_UT_*), needed when
parsing .debug_info headers.

These were useful when extending libdwarf/ctfconvert/readelf to handle
DWARF generated by gcc 12, which is version 5 by default.

Reviewed by:	emaste
MFC after:	3 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D38273
2023-02-07 15:10:24 -05:00
Mark Johnston
3aa0bc89c6 libdwarf: Add a weak uncompress() symbol
This works around brokenness in buildworld's bootstrapping logic: it
uses the source tree's metadata to collect dependency info (such as,
"libdwarf depends on libz") but links against static host libraries.
If these two are out of sync, as is the case if one builds a commit
prior to the introduction of the libz dependency, then the build fails
when trying to statically link nm(1).

Mitigate the problem by defining a weak uncompress() symbol which simply
returns an error.  This ensures that the build won't fail when
statically linking libdwarf without zlib.  The downside is that any
tools using libdwarf without zlib will now hit a runtime error if they
attempt to decode compressed sections, but at least they'll fail
deterministically, and compressed debug info is only enabled by default
in main.

In particular, this fixes building of branches lacking commit
dbf05458e3, such as releng branches, stable/12 and 13 and old
revisions of main.  Previously the nm(1) build would fail with:

ld: error: undefined symbol: uncompress
>>> referenced by libdwarf_elf_init.c:233
>>> (/usr/src/contrib/elftoolchain/libdwarf/libdwarf_elf_init.c:233)
>>>               libdwarf_elf_init.o:(_dwarf_elf_init) in archive
>>> /usr/lib/libdwarf.a

Reported by:	dim, ler, krion
Reviewed by:	imp, emaste
Fixes:		dbf05458e3 ("libdwarf: Support consumption of compressed ELF sections")
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D33419
2021-12-13 18:47:15 -05:00
Mark Johnston
dbf05458e3 libdwarf: Support consumption of compressed ELF sections
Automatically decompress zlib-compressed debug sections when loading
them.  This lets ctfcovert work on userland code after commit
c910570e75 ("Use compressed debug in standalone userland debug files
by default").

Reported by:	avg
Reviewed by:	avg, emaste
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D33139
2021-12-06 10:37:49 -05:00
Simon J. Gerraty
2c9a9dfc18 Update Makefile.depend files
Update a bunch of Makefile.depend files as
a result of adding Makefile.depend.options files

Reviewed by:	 bdrewery
MFC after:	1 week
Sponsored by:   Juniper Networks
Differential Revision:  https://reviews.freebsd.org/D22494
2019-12-11 17:37:53 +00:00
Bryan Drewery
ea825d0274 DIRDEPS_BUILD: Update dependencies.
Sponsored by:	Dell EMC Isilon
2017-10-31 00:07:04 +00:00
Enji Cooper
dc2cbb8328 Use SRCTOP-relative paths to other directories instead of .CURDIR-relative ones
This simplifies pathing in make/displayed output

MFC after:    3 weeks
Sponsored by: Dell EMC Isilon
2017-01-20 04:54:21 +00:00
Ed Maste
2821bdccaa elftoolchain: Use ${SRCTOP} for the top of the FreeBSD tree
It's provided by sys.mk so there's no need to derive it from ${.CURDIR}.

Suggested by:	ngie
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D5998
2016-04-21 12:58:29 +00:00
Ed Maste
c0e5e7f3d2 Replace ${CURDIR}/../.. with ${CURDIR:H:H} in elftoolchain
This produces a nicer path in debug info and build logs.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2016-04-18 13:13:59 +00:00
Glen Barber
52259a98ad MFH
Sponsored by:	The FreeBSD Foundation
2016-03-02 16:14:46 +00:00
Bryan Drewery
bd18fd57db DIRDEPS_BUILD: Regenerate without local dependencies.
These are no longer needed after the recent 'beforebuild: depend' changes
and hooking DIRDEPS_BUILD into a subset of FAST_DEPEND which supports
skipping 'make depend'.

Sponsored by:	EMC / Isilon Storage Division
2016-02-24 17:20:11 +00:00
Glen Barber
a70cba9582 First pass through library packaging.
Sponsored by:	The FreeBSD Foundation
2016-02-04 21:16:35 +00:00
Bryan Drewery
4aa63711a7 META MODE: Fix 'make bootstrap-tools'.
The main problem was bitrot after elftoolchain being swapped in for the
GNU toolchain.

This also reworks how the list of 'host allowed' libraries is determined
to only allow INTERNALLIBs, which is needed for libelftc to come in.

For usr.bin/readelf use the same hack, as libelf and libdward, to bring in
the needed sys/ headers for host builds.  This has not yet been a problem due
to readelf not being built as a host tool in buildworld.  This is possible
in the meta build though when building the toolchain.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:44:51 +00:00
Bryan Drewery
b791fbe630 META MODE: Don't create .meta files when symlinking sources into the obj directory.
Tracking these leads to situations where meta mode will consider the
file to be out of date if /bin/sh or /bin/ln are newer than the source
file.  There's no reason for meta mode to do this as make is already
handling the rebuild dependency fine.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:44:43 +00:00
Bryan Drewery
7b3ea376a2 META MODE: Prefer INSTALL=tools/install.sh to lessen the need for xinstall.host.
This both avoids some dependencies on xinstall.host and allows
bootstrapping on older releases to work due to lack of at least 'install -l'
support.

Sponsored by:	EMC / Isilon Storage Division
2015-11-25 19:10:28 +00:00
Simon J. Gerraty
2ef6d5a7b9 new depends 2015-06-16 23:37:19 +00:00
Simon J. Gerraty
ccfb965433 Add META_MODE support.
Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision:       D2796
Reviewed by: brooks imp
2015-06-13 19:20:56 +00:00
Simon J. Gerraty
98e0ffaefb Merge sync of head 2015-05-27 01:19:58 +00:00
Ed Maste
b4e9f2392c Update elftoolchain to upstream rev 3130
This includes a number of libdwarf improvements (particularly DWARF4
related) and updates to elftoolchain tools such as strip(1). It also
includes a large number of miscellaneous fixes (memory leaks, sign and
cast warnings, integer overflow and underflow, etc.).

This is a merge of r276167,276170-276172 from the
projects/elftoolchain-update-r3130 branch.

Sponsored by:	The FreeBSD Foundation
2014-12-29 19:16:40 +00:00
Baptiste Daroussin
6b129086dc Convert libraries to use LIBADD
While here reduce a bit overlinking
2014-11-25 11:07:26 +00:00
Simon J. Gerraty
fae50821ae Updated dependencies 2014-05-16 14:09:51 +00:00
Simon J. Gerraty
76b28ad6ab Updated dependencies 2014-05-10 05:16:28 +00:00
Simon J. Gerraty
b736a4db5b New/updated dependencies 2014-05-05 18:31:00 +00:00
Simon J. Gerraty
3b8f084595 Merge head 2014-04-28 07:50:45 +00:00
Kai Wang
be11621376 Bump SHLIB_MAJOR for libdwarf as ABI/API has changed. 2014-01-21 21:11:07 +00:00
Kai Wang
6eabfa9670 Reapply revisions r237528, r237531 and r238741 which make libelf
properly include sys/ headers from the source tree instead of the
host.

These patches are also applied to libdwarf since libdwarf requires
the same sys/ headers as libelf.
2014-01-21 20:42:15 +00:00
Kai Wang
a1abeb052e Remove INCSDIR variable which is only used in elftoolchain's own build
framework.
2014-01-21 20:23:39 +00:00
Kai Wang
fbb4c451b3 Remove the old libdwarf and bring in the new libdwarf in contrib/. 2014-01-16 21:52:09 +00:00
Simon J. Gerraty
d1d0158641 Merge from head 2013-09-05 20:18:59 +00:00
Kai Wang
3254dc0a2b When decoding SLEB128, make sure sign extension is performed for
64-bit integers.

MFC after:	3 days
2013-06-30 21:06:47 +00:00
Simon J. Gerraty
69e6d7b75e sync from head 2013-04-12 20:48:55 +00:00
Andriy Gapon
3e67d24489 libdwarf: anonymous types are expected to have empty type names...
or no type attributes at all.
This is according to DWARF specification.

MFC after:	13 days
2013-03-23 08:50:56 +00:00
Simon J. Gerraty
7cf3a1c6b2 Updated dependencies 2013-03-11 17:21:52 +00:00
Simon J. Gerraty
f5f7c05209 Updated dependencies 2013-02-16 01:23:54 +00:00
Simon J. Gerraty
7cd2dcf076 Updated/new Makefile.depend 2012-11-08 21:24:17 +00:00
Simon J. Gerraty
23090366f7 Sync from head 2012-11-04 02:52:03 +00:00
Eitan Adler
db702c59cf remove duplicate semicolons where possible.
Approved by:	cperciva
MFC after:	1 week
2012-10-22 03:00:37 +00:00
Ed Schouten
ae824d80f2 Fix warnings found by -Wmising-variable-declarations.
This self-written compiler warning, which is hopefully going to be
committed into LLVM sources soon, warns about potentially missing
`static' keywords, similar to -Wmissing-prototypes.

- bin/pax: Move external declaration of chdname and s_mask into extern.h.
- bin/setfacl: Move setfacl.c-specific stuff out of setfacl.h.
- sbin/mount_fusefs: Remove char *progname; use getprogname().
- others: add `static' where possible.
2012-10-19 05:43:38 +00:00
Dimitry Andric
1c7dd55c33 Teach libdwarf about the DW_FORM_flag_present dwarf attribute, so
programs using libdwarf (such as ctfconvert) don't error out on files
containing the attribute.

MFC after:	2 weeks
2012-08-29 18:49:41 +00:00
Marcel Moolenaar
7750ad47a9 Sync FreeBSD's bmake branch with Juniper's internal bmake branch.
Requested by: Simon Gerraty <sjg@juniper.net>
2012-08-22 19:25:57 +00:00
Konstantin Belousov
7596eb4872 Bump shared libraries version numbers in preparation for 9.0.
This time, only libraries which ABI has been changed compared to
stable/8, are bumped.

ABI analysis done by:	Gleb Kurtsou
Approved by:	re (kensmith)
2011-08-28 09:26:48 +00:00
David E. O'Brien
9b2a96cc04 Add the ability to search for all the inlined instances of a given function.
Reviewed by:	jb
Obtained from:	Juniper Networks
2011-05-07 01:05:31 +00:00
Ruslan Ermilov
13c89dbfa7 Removed redundant -I. from CFLAGS and "yes" from WITHOUT_MAN. 2010-02-25 22:16:30 +00:00
Ed Schouten
daaf575910 Build lib/ with WARNS=6 by default.
Similar to libexec/, do the same with lib/. Make WARNS=6 the norm and
lower it when needed.

I'm setting WARNS?=0 for secure/. It seems secure/ includes the
Makefile.inc provided by lib/. I'm not going to touch that directory.
Most of the code there is contributed anyway.
2010-01-02 09:58:07 +00:00
Ken Smith
3ca3047aee Bump the version of all non-symbol-versioned shared libraries in
preparation for 8.0-RELEASE.  Add the previous version of those
libraries to ObsoleteFiles.inc and bump __FreeBSD_Version.

Reviewed by:    kib
Approved by:    re (rwatson)
2009-07-19 17:25:24 +00:00
Navdeep Parhar
d82ccc60d9 Store accurate offset information in CTF data. A large number of
structs had incorrect member offsets, limiting dtrace's usefulness
when working with them.  An example of incorrect info (struct
rtentry) from before this fix:

<1738> STRUCT rtentry (200 bytes)
      rt_nodes type=1731 off=0
      rt_gateway type=849 off=65280 <== WRONG, should be 8 * 96
      rt_flags type=3 off=65344     <== wrong again, and so on..
...

Approved by:	re (kib), gnn (mentor)
MFC after:	2 weeks
2009-07-17 21:15:09 +00:00
John Birrell
6433849359 Add a BSD licensed DWARF library for use by the DTrace clients.
The API for this library is deliberately different to the GPL'd
libdwarf to avoid licensing problems.
2008-05-22 02:14:23 +00:00