Commit Graph

100 Commits

Author SHA1 Message Date
andrew
8190b13763 Add support to the ARM platform specific section types. 2013-08-31 18:13:20 +00:00
markj
084e5da56e Merge part of r1712 from elftoolchain, making it possible to resize ELF
sections and indirectly change the layout of an ELF file when
ELF_F_LAYOUT is not set.

PR:		bin/167103
Approved by:	rstone (co-mentor)
Obtained from:	elftoolchain
MFC after:	2 weeks
2013-02-24 15:15:50 +00:00
markj
9d1eadb90c - Make sure to set an error code when trying to obtain a data descriptor for
a section of type SHT_NULL.
- Update the man page to reflect the fact that elf_getdata() and
  elf_rawdata() may return with an error of ELF_E_SECTION.

PR:		bin/175491
Approved by:	emaste (co-mentor)
MFC after:	1 week
2013-02-19 03:23:13 +00:00
ed
fbb83e78c0 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
ache
b7a0f04c52 Don't ever build files depending on the directory where they are placed in.
It is obvious that its modification time will change with each such file
builded.
This bug cause whole libelf to rebuild itself each second make run
(and relink that files on each first make run) in the loop.
2012-07-24 16:03:28 +00:00
andrew
422f597a37 Add the sys directory we create to the list of items to clean. 2012-06-24 09:19:24 +00:00
andrew
8de91ca9a5 Create a symlink to sys/elf32.h, sys/elf64.h, and sys/elf_common.h.
When building libelf in the bootstrap stage this would include the tree
versions of, for example, sys/_types.h. This would work as long as the
tree's version of this file was close enough to the system's version of
the file. If, however, there was a change in the tree such that the location
of a typedef was moved this would cause problems. In this case the version
of sys/_types.h in the tree no longer defines __wchar_t and expects it to
to be defined in machine/_types.h, however we pick up machine/_types.h from
the system and find it is not defined there. The solution is to restrict the
parts of sys er include from the tree to those that are needed.

This fixes the recent Tinderbox failure.

Pointy Hat to:	andrew
2012-06-24 08:43:34 +00:00
joel
5b88f5a88f Remove repeated words. 2012-06-05 18:19:52 +00:00
joel
b9a2e94d1d mdoc: minor Bl improvements. 2012-06-02 08:47:26 +00:00
gjb
8670397617 General mdoc(7) and typo fixes.
PR:		167734
Submitted by:	Nobuyuki Koganemaru (kogane!jp.freebsd.org)
MFC after:	3 days
2012-05-11 20:06:46 +00:00
eadler
1ef5fe44d3 Remove trailing whitespace per mdoc lint warning
Disussed with:	gavin
No objection from:	doc
Approved by:	joel
MFC after:	3 days
2012-03-29 05:02:12 +00:00
gonzo
1a1c878591 Handle MIPS .reginfo section as ELF_T_BYTE 2012-03-26 21:31:57 +00:00
joel
56f5938296 mdoc: sort prologue macros. 2012-03-26 19:23:57 +00:00
joel
39c40cce12 Remove superfluous paragraph macro. 2012-03-25 12:13:24 +00:00
gonzo
24ee1e255a Add handler for MIPS.options section 2012-03-23 22:55:37 +00:00
eadler
9d7884364e - change "is is" to "is" or "it is"
- change "the the" to "the"

Approved by:	lstewart
Approved by:	sahil (mentor)
MFC after:	3 days
2011-10-16 14:30:28 +00:00
kaiw
58d64357bc Document the behavior of elf_getdata() and elf_rawdata() with
zero-sized ELF sections.

Obtained from:	elftoolchain
2011-05-07 11:29:48 +00:00
kaiw
f98c5772c9 For zero-sized sections, set the d_buf field of the Elf_Data
descriptor returned by `elf_rawdata()` to NULL.

Obtained from:	elftoolchain
2011-05-07 11:04:36 +00:00
obrien
3a533dcf25 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
uqs
d8cc882294 Fix some duplicate-word typos in manpages.
Submitted by:	arundel
MFC after:	1 week
2011-03-02 21:59:53 +00:00
brucec
318d44b9bc Remove duplicate "in".
Suggested by:	Rob Farmer <rfarmer at predatorlabs.net>
MFC after:	3 days
2011-03-01 11:47:51 +00:00
brucec
3c9e970368 Revert some of r177626. "in in" is valid in certain sentences.
PR:		121490
MFC after:	3 days
2011-02-28 10:03:48 +00:00
kan
fa976d4a0a Do not allocate buffer to hold data for zero-sized sections. 2011-01-25 19:17:50 +00:00
uqs
8ae3afcfad mdoc: drop redundant .Pp and .LP calls
They have no effect when coming in pairs, or before .Bl/.Bd
2010-10-08 12:40:16 +00:00
kaiw
18f75881f8 libelf is overly strict about the type and alignment of Elf_Data
objects inside one ELF section, which prevents the creation of a ELF
section with mixed data types. For example, gcc LTO use libelf to
create a .gnu_lto_XXX section that contains integers and a string
table, which doesn't work with our libelf implementation.

The changes made in this commit include:
* Allow Elf_Data type to be different than section type.
* Relax Elf_Data alignment check.
* Align each Elf_Data by their own alignment instead of section alignment.

MFC after:   1 month
2010-09-09 18:51:50 +00:00
rpaulo
6a5d9f2b9f Don't link drti.o with libelf_pic.a. This means that all software with
userland SDT probes must be linked with libelf explicitly.

Requested by:	kib
Sponsored by:	The FreeBSD Foundation
2010-08-21 17:29:59 +00:00
rpaulo
f7449cf16e Install a PIC libelf. This will be needed by the DTrace runtime
instrumentation object (dtri.o).

Sponsored by:	The FreeBSD Foundation
2010-08-21 10:40:12 +00:00
joel
dd1fff9bcb Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while
translating these manual pages.  Minor corrections by me.

Submitted by:	Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>
2010-08-16 15:18:30 +00:00
kaiw
9198b19835 Add translation support for section type SHT_SUNW_dof.
Submitted by:	rpaulo
MFC after:	2 weeks
2010-08-11 19:59:31 +00:00
joel
60754e9168 Spelling fixes. 2010-08-03 17:40:09 +00:00
kaiw
305e37b5f4 Protect GNUHASH translation functions with #ifdef; unbreak cross
toolchain build.

Reported by:	jchandra
MFC after:	1 month
2010-07-28 11:01:07 +00:00
kaiw
9956fed9ec * Remove a superfluous error description.
* Document an additional error that may be returned: `ELF_E_ARCHIVE`.

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 13:29:00 +00:00
kaiw
e08cc2c252 Add a cross-reference to elf_rawfile(3).
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 13:23:07 +00:00
kaiw
25f156bade * Note that ar(1) archives may also be opened using elf_memory(3).
* Ignore the passed in value of the `fd` argument for ar(1) archives
  opened with elf_memory(3).

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 13:18:57 +00:00
kaiw
b4224af647 Remove a redundant word.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 13:00:01 +00:00
kaiw
5bf2cc0b89 Move helper functions _libelf_ar_get_{name,number,string}() and
`_libelf_ar_open()` to a new compilation unit "libelf_ar_util.c"
to break the circular dependency between "elf_memory.o" and
"libelf_ar.o".

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 12:54:34 +00:00
kaiw
bc05b1ebb0 Fix a memory leak.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 12:30:58 +00:00
kaiw
82c6a0d5cc * Deprecate elf_getshnum(), elf_getphnum() and elf_getshstrndx() in
favour of `elf_getshdrnum()`, `elf_getphdrnum()` and `elf_getshdrstrndx()`
  respectively.
* Add new manual pages for `elf_getshdrstrndx()`, `elf_getphdrnum()` and
  `elf_getshdrnum()`.
* Add a deprecation warning for `elf_getshstrndx()`, `elf_getphnum()` and
  `elf_getshnum()`.

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 12:14:50 +00:00
kaiw
1b382f295a Avoid switching between "unsigned char" and "char" in the C code
generated from "libelf_convert.m4".

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 11:26:18 +00:00
kaiw
8207e8cd23 Add support for translating sections of type ELF_T_GNUHASH.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 10:57:22 +00:00
kaiw
d137ff16e7 - Document that the *fsize() functions return a size of 1 for Elf
types that don't have a fixed size.
- The *fsize() functions should return a size of 1, for variable length
  types.
- Redefine symbol ELF_T_LAST to match the current end of the list.

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 10:39:29 +00:00
kaiw
49a7d97ce4 Perform additional checks when translating between file and memory
representations of ELF types.

The ELF(3) API allows applications to request a conversion that is
`in-place', i.e., with source and destinations data buffers being
the same.  However, the file and memory sizes of ELF sections that
have additional internal structure, such as those of type `Elf_Note',
or `Elf_GNU_Hash_Header', can be determined only known after the
type-specific headers that comprise the first few words in these
sections are read and translated.

Pass in the size of destination buffer to type translation routines
in "libelf_convert.m4" and have these routines return an error code
if the translated data would not fit inside the destination buffer.

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 10:25:02 +00:00
kaiw
929048ea54 Reduce verbosity.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 10:11:46 +00:00
kaiw
a9edf336a0 - Return zero for file sizes of ELF types that have a variable size.
- Neaten a few comments.

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 10:08:25 +00:00
kaiw
55d8bc9ed8 Note that the *_fsize() functions are only defined for ELF types that
have a fixed size.

Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 10:02:59 +00:00
kaiw
2e04fb95e1 Changes for supporting GNU Hash sections.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 09:56:42 +00:00
kaiw
090a9c2514 Add a new ELF type denoting GNU style hash tables.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 09:51:24 +00:00
kaiw
57795d0388 Allow an application that updates only the ELF Ehdr to work.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 09:47:14 +00:00
kaiw
f349ce0e9e Use <unistd.h> to declare the prototype for ftruncate().
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 09:33:45 +00:00
kaiw
07c19657cd Bug fix: permit the creation of zero-sized sections.
Obtained from:	elftoolchain
MFC after:		1 month
2010-07-21 09:27:16 +00:00