0299afdff1
This allows kldxref to operate on kernel objects from any architecture, not just the native architecture. In particular, this will permit generating linker.hints files as part of a cross-arch release build. - elf.c is a new file that includes various wrappers around libelf including routines to read ELF data structures such as program and section headers and ELF relocations into the "generic" forms described in <gelf.h>. This file also provides routines for converting a linker set into an array of addresses (GElf_Addr) as well as reading architecture-specific mod_* structures and converting them into "generic" Gmod_* forms where pointers are replaced with addresses. - The various architecture-specific reloc handlers now use GElf_* types for most values (including GElf_Rel and GElf_Rela for relocation structures) and use routines from <sys/endian.h> to read and write target values. A new linker set matches reloc handlers to specific ELF (class, encoding, machine) tuples. - The bits of kldxref.c that write out linker.hints now use the encoding (ELFDATA2[LM]SB) of the first file encountered in a directory to set the endianness of the output file. Input files with a different architecture in the same directory are skipped with a warning. In addition, the initial version record for the file must be deferred until the first record is finished since the architecture of the output file is not known until then. - Various places that used 'sizeof(void *)' throughout now use 'elf_pointer_size()' to determine the size of a pointer in the target architecture. Tested by: amd64 binary on both amd64 and i386 /boot/kernel Reviewed by: imp Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D42966 |
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|---|---|---|
| .cirrus-ci | ||
| .github | ||
| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| stand | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| .cirrus.yml | ||
| .clang-format | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| CONTRIBUTING.md | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| Makefile.sys.inc | ||
| ObsoleteFiles.inc | ||
| README.md | ||
| RELNOTES | ||
| UPDATING | ||
FreeBSD Source:
This is the top level of the FreeBSD source directory.
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.
For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.
The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), FreeBSD handbook on building userland, and Handbook for kernels for more information, including setting make(1) variables.
For information on the CPU architectures and platforms supported by FreeBSD, see the FreeBSD website's Platforms page.
Source Roadmap:
| Directory | Description |
|---|---|
| bin | System/user commands. |
| cddl | Various commands and libraries under the Common Development and Distribution License. |
| contrib | Packages contributed by 3rd parties. |
| crypto | Cryptography stuff (see crypto/README). |
| etc | Template files for /etc. |
| gnu | Commands and libraries under the GNU General Public License (GPL) or Lesser General Public License (LGPL). Please see gnu/COPYING and gnu/COPYING.LIB for more information. |
| include | System include files. |
| kerberos5 | Kerberos5 (Heimdal) package. |
| lib | System libraries. |
| libexec | System daemons. |
| release | Release building Makefile & associated tools. |
| rescue | Build system for statically linked /rescue utilities. |
| sbin | System commands. |
| secure | Cryptographic libraries and commands. |
| share | Shared resources. |
| stand | Boot loader sources. |
| sys | Kernel sources (see sys/README.md). |
| targets | Support for experimental DIRDEPS_BUILD |
| tests | Regression tests which can be run by Kyua. See tests/README for additional information. |
| tools | Utilities for regression testing and miscellaneous tasks. |
| usr.bin | User commands. |
| usr.sbin | System administration commands. |
For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see FreeBSD Handbook.