README.android revision d1acd051dd8446a013b6c35b4bfe64ec68417206
18d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao/* 28d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * README.android describes in high-level the LLVM changes that we cannot push 38d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * upstream to the llvm.org repository: 48d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * - Changes due to Android's build system. 58d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * - Changes due to Android's toolchain. 68d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * - Changes due to the limitations in Android-based consumer electronics. 78d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * 8d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao * Some of them are to-dos. If and when they are done, there will no longer be 98d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * merge conflicts with upstream on those parts. 108d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao * 11d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao * The file contains useful hints when we try to resolve future 3-way merge 12d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao * conflicts. 13d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao */ 148d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 1556e9baf7b6e7745a16b1b114f784027428f21d4bShih-wei Liao* For Honeycomb: Synced to upstream r112344. 1656e9baf7b6e7745a16b1b114f784027428f21d4bShih-wei Liao* For Honeycomb MR1: Synced to upstream r119309 1756e9baf7b6e7745a16b1b114f784027428f21d4bShih-wei Liao* For Honeycomb MR2: Synced to upstream r119309 18545506526ff4b6f82047ea71237576cb37296789Shih-wei Liao* For Ice Cream Sandwich: Synced to upstream r135569 19ac212abcc6d858470ad35ce7d660af0c1800364aShih-wei Liao* For Ice Cream Sandwich MR1: Synced to upstream r142530 20d010e1824491b73739b1a639b7e2805beeb71664Shih-wei Liao* For Ice Cream Sandwich MR2: Synced to upstream r146714 21d1acd051dd8446a013b6c35b4bfe64ec68417206Shih-wei Liao* For Jellybean: Synced to upstream r152063 22a786d68e67b354d96a7bd445a5cb19f576f423d6Shih-wei Liao 23d1acd051dd8446a013b6c35b4bfe64ec68417206Shih-wei Liao* Recent downstreaming on 2012/3/5: Synced to r152063 (Contact srhines & sliao for merge questions.) 24f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/12/17: Synced to r146714 (Contact loganchien & sliao for merge questions.) 25f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/11/26: Synced to r145126 (Contact loganchien & sliao for merge questions.) 26f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/11/17: Synced to r144606 (Contact loganchien & sliao for merge questions.) 27f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/11/14: Synced to r144354 (Contact srhines for merge questions.) 28f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/10/22: Synced to r142530 (Contact sliao & loganchien for merge questions.) 29f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/7/21: Synced to r135569 (Contact sliao & loganchien for merge questions.) 30f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/7/19: Synced to r135360 (Contact sliao for merge questions.) 31f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/7/2: Synced to r134306 (Contact sliao for merge questions.) 32f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/6/30: Synced to r133718 (Contact sliao for merge questions.) 33039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * This downstreaming could have broken bitcode compatibility 34039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * Upstream was migrating from 2.7 bitcode to 3.0 bitcode. 35039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * See the 4 commits on 2011/6/17: 36039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao ==> * 4f6bab9 - Drop the "2" suffix on some enums. (13 days ago) <Chris Lattner> 37039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao ==> * 96a74c5 - remove support for a bunch of obsolete instruction encodings and other backward compatibility hacks. (13 days ago) <Chris Lattner> 38039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * 738f05a - Remove a useless copy of MCELFStreamer. Patch by Logan Chien! (13 days ago) <Benjamin Kramer> 39039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * 981d826 - getSuccWeight returns now default 0 if Weights vector is empty. (13 days ago) <Jakub Staszak> 40039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * 799a58a55 - missed a file. (13 days ago) <Chris Lattner> 41039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao ==> * 9d61dd9 - Remove some "2" suffixes from the metadata enums now that "1" is gone. (13 days ago) <Chris Lattner> 42039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao ==> * 020a5a4 - remove bitcode reader support for LLVM 2.7 metadata encoding. (13 days ago) <Chris Lattner> 43039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * We maintain compatibility because Honeycomb SDK is out there. 44039a79eb418211573bada57ec3a1edf5a9d6071eShih-wei Liao * Our bitcode reader can read both 2.7 and 3.0 versions. Writer is tracking upstream. 45f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/6/22: Synced to r133240 (Contact sliao@ for merge questions.) 46f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/4/8: Synced to r129128 (Contact sliao@ for merge questions.) 47f8718ea1f9203dbbbcf04d029f4e2e7bfc5bfed5Shih-wei Liao* Recent downstreaming on 2011/3/11: Synced from r119309 to r127116 (Contact sliao@ for merge questions.) 4857da390bbc106b3afc38167b4886482492e78398Shih-wei Liao 498d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* We add 40+ Android's *.mk files that are specific to Android's build system. 508d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 518d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* All the configuration files because we don't have configure/make/make-install 528d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 538d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* Changes for enabling both host and device builds. 548d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 558d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* All the tblgen work to enable Android to build a generator-generator binary 568d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao and then run it in the middle of Android build process. 578d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 58d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao* Explicitly include <cctype> header since is*() are not builtin functions in 598d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei LiaoAndroid toolchain. 608d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 618d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* Code changes to make Android's toolchain stop outputting warnings. (This part 628d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao should be pushed upstream eventually.) 638d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 648d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* lib/Target/{X86,ARM}/AsmPrinter/{X86,ARM}AsmPrinter.cpp 65d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao Move from lib/Target/{X86,ARM}/{X86,ARM}AsmPrinter.cpp. 66d6a2e7d87f9dfd54ad5e480f62a839bf26ade59aShih-wei Liao AsmPrinter is only needed in Android when disassembly functionality 678d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao is desired to be included. 688d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 698d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* Our ARM code generation fixes that upstream hasn't accepted yet. (This 708d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao conflict will be resolved eventually, but there will always be time lag.) 718d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao 728d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao* Assorted size optimizations because Android-based consumer electronics 738d3892a530a26f66ead4fbfc4d36d3c8a917b295Shih-wei Liao need them. 74