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Google released and enhanced version of gcc-4.2.1 plus their local patches for Android[1]. The patches are owned by Google and the license hasn't been changed from the original GPLv2. We are only bringing a subset of the available patches that may be helpful in FreeBSD. Changes specific to android are not included. From the README.google file[1]. Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1: gcc/Makefile.in gcc/c-common.c gcc/c-common.h gcc/c-opts.c gcc/c-typeck.c gcc/cp/typeck.c gcc/doc/invoke.texi gcc/flags.h gcc/opts.c gcc/tree-flow.h gcc/tree-ssa-alias-warnings.c gcc/tree-ssa-alias.c Backport of -Wstrict-aliasing from mainline. Silvius Rus <rus@google.com> gcc/coverage.c: Patch coverage_checksum_string for PR 25351. Seongbae Park <spark@google.com> Not yet submitted to FSF. gcc/c-opts.c gcc/c-ppoutput.c gcc/c.opt gcc/doc/cppopts.texi libcpp/Makefile.in libcpp/directives-only.c libcpp/directives.c libcpp/files.c libcpp/include/cpplib.h libcpp/init.c libcpp/internal.h libcpp/macro.c Support for -fdirectives-only. Ollie Wild <aaw@google.com>. Submitted to FSF but not yet approved. libstdc++-v3/include/ext/hashtable.h http://b/742065 http://b/629994 Reduce min size of hashtable for hash_map, hash_set from 53 to 5 libstdc++-v3/include/ext/hashtable.h http://b/629994 Do not iterate over buckets if hashtable is empty. gcc/common.opt gcc/doc/invoke.texi gcc/flags.h gcc/gimplify.c gcc/opts.c Add Saito's patch for -finstrument-functions-exclude-* options. gcc/common.opt gcc/doc/invoke.texi gcc/final.c gcc/flags.h gcc/opts.c gcc/testsuite/gcc.dg/Wframe-larger-than.c Add a new flag -Wframe-larger-than- which enables a new warning when a frame size of a function is larger than specified. This patch hasn't been integrated into gcc mainline yet. gcc/tree-vrp.c Add a hack to avoid using ivopts information for pointers starting at constant values. Reference: [1] https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/ Obtained from: Google Inc. MFC after: 3 weeks
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ 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, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. The ``world'' target should only be used in cases where the source tree has not changed from the currently running version. See: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html for more information, including setting make(1) variables. The ``buildkernel'' and ``installkernel'' targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process, documentation for which can be found at: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you might need to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/<arch>/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- 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. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* 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. sys Kernel sources. 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: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/synching.html