- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Add the definition of DF_1_INTERPOSE flag.

Reviewed by: kan
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Approved by: re (glebius)

Add the ARM processor-specific section types.

Reviewed by: imp

Add a new set of notes to a process core dump to store procstat data.

The notes format is a header of sizeof(int), which stores the size of
the corresponding data structure to provide some versioning, and data
in the format as it is returned by a related sysctl call.

The userland tools (procstat(1)) will be taught to extract this data,
providing additional info for postmortem analysis.

PR: kern/173723
Suggested by: jhb
Discussed with: jhb, kib
Reviewed by: jhb (initial version), kib
MFC after: 1 month

Add definition for the -z nodefaultlib flag.

MFC after: 3 days

Add .reginfo section entry

Add define for MIPS.options

Add ARM relocations types used for thread-local storage

Reviewed by: cognet

Add definition for PT_GNU_RELRO.

MFC after: 3 days

Fix typo.

Submitted by: John Marino <draco marino st>
MFC after: 3 days

Add definitions for GNU-specific STT_GNU_IFUNC symbol type,
and R_{386,X86_64}_IRELATIVE relocations.

MFC after: 3 weeks

Add the ability to search for all the inlined instances of a given function.

Reviewed by: jb
Obtained from: Juniper Networks

Add PT_GNU_STACK definition.

MFC after: 3 days

Add the ability for GDB to printout the thread name along with other
thread specific informations.

In order to do that, and in order to avoid KBI breakage with existing
infrastructure the following semantic is implemented:
- For live programs, a new member to the PT_LWPINFO is added (pl_tdname)
- For cores, a new ELF note is added (NT_THRMISC) that can be used for
storing thread specific, miscellaneous, informations. Right now it is
just popluated with a thread name.

GDB, then, retrieves the correct informations from the corefile via the
BFD interface, as it groks the ELF notes and create appropriate
pseudo-sections.

Sponsored by: Sandvine Incorporated
Tested by: gianni
Discussed with: dim, kan, kib
MFC after: 2 weeks

Add DF_1_LOADFLTR.

MFC after: 3 days

Fix typo.

MFC after: 3 days

Add definitions for powerpc64 ELF relocation types. Some 64-bit relocations
are identical to 32-bit relocations in meaning, name, and number, and I
have chosen not to duplicate those here.

Implement rtld part of the support for -z nodlopen (see ld(1)).

Reviewed by: kan
MFC after: 3 weeks

Added DT_GNU_HASH entry for GNU-style hash table.

Implement support for RTLD_NODELETE flag for dlopen() and -z nodelete
static linker option. Do it by incrementing reference count on the loaded
object and its dependencies.

Reviewed by: davidxu, kan

Add some definitions for the DT_FLAGS_1 tag flags.

Reviewed by: kan

Introduce a C type representing the header for GNU-style hash table
sections. These ELF sections are generated by newer versions of
GNU binutils.

Reviewed by: kaiw, Ali Bahrami <ali dot bahrami at sun dot com>

Added section type SHT_GNU_HASH. GNU-style .hash section is a new
style of hash section with better performace than the original SYSV
hash. It can be generated by newer binutils.

style(9)

Verified with: svn diff -x -Bbw elf_common.h

Update elf_common.h with new EM_ types found in the latest ELF gABI.

This commit is slightly different from the original patch in the PR:
1. EM_ALPHA keeps the old value for compatibility reason.
2. Non-standard SHT_NUM is not added.
3. Style.

PR: kern/118540
Submitted by: "Pedro F. Giffuni" <giffunip[at]tutopia.com>

Add ELF relocation types for mips.

Obtained from: mips/include/elf.h

Add extra visibility definitions.

See: <http://groups.google.com/group/generic-abi/browse_thread/thread/1a84adc15666164>

These are already in OpenSolaris and DTrace uses STV_ELIMINATE.

Correct PT_GNU_EH_FRAME definition.

Add `PN_XNUM', for supporting ELF objects with a large number of program
header table entries.

PR:
Submitted by:
Reviewed by:
Approved by:
Obtained from:
MFC after:
Security:
Move the relocation definitions to the common elf header so that DTrace
can use them on one architecture targeted to a different one.

Add the additional ELF types defines in Sun's "Linker and Libraries"
manual.

o Correct URL to ELF header documantation.

PR: kern/98213
Submitted by: Robert Gogolok

o Add the GNU symbol versioning section constants (SHT_GNU_verdef,
SHT_GNU_verneed, SHT_GNU_versym),
o Fix the definition of DT_HIOS -- it was short an 'f'...

Implement ELF symbol versioning using GNU semantics. This code aims
to be compatible with symbol versioning support as implemented by
GNU libc and documented by http://people.redhat.com/~drepper/symbol-versioning
and LSB 3.0.

Implement dlvsym() function to allow lookups for a specific version of
a given symbol.

Get in sync with current ELF definitions. In particular this means:
o Remove the unused and non-standard SHT_NUM, PT_COUNT and DT_COUNT.
o Add the STV_DEFAULT, STV_INTERNAL, STV_HIDDEN and STV_PROTECTED
symbol visibility constants.
o Add the ELF32_ST_VISIBILITY and ELF64_ST_VISIBILITY macros to
get the symbol visibility from the st_other field.
o Add the ELFOSABI_AIX, ELFOSABI_OPENVMS and ELFOSABI_NSK constants.
o Add the ET_LOOS, ET_HIOS, ET_LOPROC and ET_HIPROC constants.
o Further flesh out the list of machine types. Note that EM_ALPHA
remains non-standard. The standard value for EM_ALPHA is given
by EM_ALPHA_STD (which is a non-standard name :-)
o Add the SHN_LOOS, SHN_HIOS and SHN_XINDEX constants.
o Add the SHT_INIT_ARRAY, SHT_FINI_ARRAY, SHT_PREINIT_ARRAY, SHT_GROUP
and SHT_SYMTAB_SHNDX constants.
o Add the SHF_MERGE, SHF_STRINGS, SHF_INFO_LINK, SHF_LINK_ORDER,
SHF_OS_NONCONFORMING, SHF_GROUP and SHF_MASKOS constants.
o Add the PF_MASKOS and PF_MASKPROC constants.
o Add the STB_LOOS andf STB_HIOS constants.
o Add the STT_COMMON, STT_LOOS and STT_HIOS constants.

MFC after: 1 week

Fix typo (in comment): s/IA-46/IA-64/

Submitted by: Miod Vallat <miod@online.fr>

Add defines required for TLS support.

Add missing */

- Add support for DT_FLAGS.
- Define various things from the most recent ELF spec.

- Call a SHT_REL 'relocation section' rather than
'relation section'.
- Put a space between a word and the end of comment delimiter.

Catch up with common usage:

o Define ELFMAG and SELFMAG as an alternative to test the ELF magic.
ELFMAG is the magic; SELFMAG is the size of the magic. Use with
strncmp() or memcmp().
o Define SHT_NUM as the number of predefined sections.

Note: style(9) deviation for consistency.

Add "ELFOSABI_NONE" which is the symbol used in a copy of the old ELF spec,
as an alias for "ELFOSABI_SYSV".

Update the e_machine values to include x86-64, PowerPC and [Strong]ARM;
and fix the Sparc values. Also update the ELFOSABI list while I'm here.

Add machine type for ia64.

Change our ELF binary branding to something more acceptable to the Binutils
maintainers.

After we established our branding method of writing upto 8 characters of
the OS name into the ELF header in the padding; the Binutils maintainers
and/or SCO (as USL) decided that instead the ELF header should grow two new
fields -- EI_OSABI and EI_ABIVERSION. Each of these are an 8-bit unsigned
integer. SCO has assigned official values for the EI_OSABI field. In
addition to this, the Binutils maintainers and NetBSD decided that a better
ELF branding method was to include ABI information in a ".note" ELF
section.

With this set of changes, we will now create ELF binaries branded using
both "official" methods. Due to the complexity of adding a section to a
binary, binaries branded with ``brandelf'' will only brand using the
EI_OSABI method. Also due to the complexity of pulling a section out of an
ELF file vs. poking around in the ELF header, our image activator only
looks at the EI_OSABI header field.

Note that a new kernel can still properly load old binaries except for
Linux static binaries branded in our old method.

*
* For a short period of time, ``ld'' will also brand ELF binaries
* using our old method. This is so people can still use kernel.old
* with a new world. This support will be removed before 5.0-RELEASE,
* and may not last anywhere upto the actual release. My expiration
* time for this is about 6mo.
*

$Id$ -> $FreeBSD$

The structure Elf_Note does not have 32 and 64 bit variants but always
has 32bit fields. This change allows FreeBSD/alpha to generate well-formed
ELF corefiles.

Reviewed by: John Polstra <jdp@polstra.com>

Add generic defines ELF_ARCH, ELF_CLASS, and ELF_DATA. These give
the relevant characteristics of the native machine, for building
and checking Elf_Ehdr structures.

Add structures to represent ELF "note" headers. Add defines for the
note types used in ELF core files.

Add definitions for the ELF section attribute flags, SHF_*.

Submitted by: Robert Nordier <rnordier@nordier.com>

Revamp the ELF include files to better support architecture-independent
applications. Here's how it works.

The kernel should include <machine/elf.h> to get the definitions
for the native architecture. It can reference the various ELF
structures with generic names like Elf_Sym, Elf_Shdr, etc. A define
__ELF_WORD_SIZE is also available with the value 32 or 64 as
appropriate for the native architecture.

Generic applications should include <elf.h>, which is just a wrapper
for <machine/elf.h>.

Applications such as object file dumpers that need to deal with
foreign ELF files can include <sys/elf32.h> and/or <sys/elf64.h>.
Both can be included from the same source file if desired. The
structure names must be referenced using wordsize-specific names
like Elf32_Sym, Elf64_Shdr, etc.

I haven't change the alpha stuff, but I haven't broken it either.