Xin LI
37aec55d0a
Build a 4.5 GiB FAT32 image whose LOST.DIR cluster sits exactly 4 GiB above the single cluster of a PAYLOAD.BIN, so that truncating the offset of the former to 32 bits yields the offset of the latter, then inject a lost cluster chain and let fsck_msdosfs(8) reconnect it. The test asserts both halves of the bug fixed in the previous commit: that PAYLOAD.BIN's cluster is unchanged, and that a second pass no longer reports the chain as lost, which it only stops doing once the directory entry reaches the real LOST.DIR. newfs_msdos(8) -C only calls ftruncate(2) and nothing outside the reserved area, the FATs and a handful of clusters is ever written, so the image stays sparse and costs about 2 MiB on disk. The geometry is read back out of the BPB rather than assumed, so newfs_msdos(8) stays free to lay the file system out differently; the test fails with a clear message if the volume ever becomes too small to hold a cluster a full 4 GiB beyond the data area. MFC after: 1 week
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.
For official FreeBSD bootable images, see the release page.
Source Roadmap:
| Directory | Description |
|---|---|
| bin | System/user commands. |
| cddl | Source code for third-party software under the Common Development and Distribution License. |
| contrib | Source code for third-party software. |
| crypto | Source code for cryptographic libraries and commands (see crypto/README). |
| etc | Template files for /etc. |
| include | System include files. |
| kerberos5 | Build system for Kerberos 5 (Heimdal). |
| krb5 | Build system for Kerberos 5 (MIT). |
| lib | System libraries. |
| libexec | System commands intended to be executed by other commands or daemons. |
| packages | Base system packages. |
| release | Makefiles and scripts used for building releases and VM images. |
| rescue | Build system for statically linked /rescue commands. |
| sbin | System commands. |
| secure | Build system for cryptographic libraries and commands (excluding Kerberos). |
| share | Shared resources. |
| stand | Boot loader sources. |
| sys | Kernel sources (see sys/README.md). |
| targets | Support for experimental DIRDEPS_BUILD |
| tests | Tests which can be run by Kyua. See tests/README for additional information. |
| tools | Ancillary utilities and tests (not included in the build). |
| 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.