README.android revision 8d3892a530a26f66ead4fbfc4d36d3c8a917b295 
1/*
2 * README.android describes in high-level the LLVM changes that we cannot push
3 * upstream to the llvm.org repository:
4 *  - Changes due to Android's build system.
5 *  - Changes due to Android's toolchain.
6 *  - Changes due to the limitations in Android-based consumer electronics.
7 *
8 * Some of them are to-dos. If and when they are done, there will no longer be
9 * merge conflicts with upstream on those parts.
10 *
11 * The file contains useful hints when we try to resolve future 3-way merge
12 * conflicts.
13 */
14
15* We add 40+ Android's *.mk files that are specific to Android's build system.
16
17* All the configuration files because we don't have configure/make/make-install
18
19* Changes for enabling both host and device builds.
20
21* All the tblgen work to enable Android to build a generator-generator binary
22  and then run it in the middle of Android build process.
23
24* Explicitly include <cctype> header since is*() are not builtin functions in
25Android toolchain.
26
27* Code changes to make Android's toolchain stop outputting warnings. (This part
28  should be pushed upstream eventually.)
29
30* lib/Target/{X86,ARM}/AsmPrinter/{X86,ARM}AsmPrinter.cpp
31   Move from lib/Target/{X86,ARM}/{X86,ARM}AsmPrinter.cpp.
32   AsmPrinter is only needed in Android when disassembly functionality
33      is desired to be included.
34
35* Our ARM code generation fixes that upstream hasn't accepted yet. (This
36  conflict will be resolved eventually, but there will always be time lag.)
37
38* Assorted size optimizations because Android-based consumer electronics
39  need them.
40