Commit Graph

6 Commits

Author SHA1 Message Date
dim
ace3c83b7c Adjust version numbers for the clang library directory. 2017-01-05 18:32:18 +00:00
dim
972f2bc4ab Initial updates to llvm/clang build glue. 2017-01-03 20:28:09 +00:00
dim
d4fb1bd681 Update build glue for clang 3.9.1 r288513. 2016-12-02 19:40:00 +00:00
dim
8f62ee2282 Update build glue for llvm/clang 3.9.1. 2016-11-26 01:13:53 +00:00
bdrewery
ccc1cc3a4e DIRDEPS_BUILD: Connect the new clang build.
Sponsored by:	EMC / Isilon Storage Division
2016-09-01 20:38:59 +00:00
dim
502ed8de84 Completely revamp the way llvm, clang and lldb are built.
* Bootstrap llvm-tblgen and clang-tblgen with a minimal llvm static
  library, that has no other dependencies.
* Roll up all separate llvm libraries into one big static libllvm.
* Similar for all separate clang and lldb static libraries.
* For all these libraries, generate their .inc files only once.
* Link all llvm tools (including extra) against the big libllvm.
* Link clang and clang-format against the big libllvm and libclang.
* Link lldb against the big libllvm, libclang and liblldb.

N.B.: This is work in progress, some details may still be missing.

It also heavily depends on bsd.*.mk's support for SRCS and DPSRCS with
relative pathnames, which apparently does not always work as expected.
For building llvm, clang and lldb though, it seems to work just fine.

The main idea behind this restructuring is maintainability and build
peformance.  The previous large number of very small libraries, each
with their own generated files and dependencies was slow to traverse
and hard to understand.

Possible future improvements:
* Only build certain targets, e.g. for most regular users having just
  one target will be fine.  This will shave off some build time.
* Building the big llvm, clang and lldb libraries as shared (private)
  libraries.
* Adding other components from the LLVM project, such as lld.
2016-08-26 22:44:22 +00:00