mirror of
https://github.com/llvm/llvm-project.git
synced 2025-04-28 04:36:07 +00:00
4380647e79
Summary: This patch illustrates some of the features like modularity we want in the new libc. Few other ideas like different kinds of testing, redirectors etc are not yet present. Reviewers: dlj, hfinkel, theraven, jfb, alexshap, jdoerfert Subscribers: mgorny, dexonsmith, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D67867 llvm-svn: 373764
25 lines
1006 B
ReStructuredText
25 lines
1006 B
ReStructuredText
LLVM libc build rules
|
|
=====================
|
|
|
|
At the cost of verbosity, we want to keep the build system of LLVM libc
|
|
as simple as possible. We also want to be highly modular with our build
|
|
targets. This makes picking and choosing desired pieces a straighforward
|
|
task.
|
|
|
|
Targets for entrypoints
|
|
-----------------------
|
|
|
|
Every entrypoint in LLVM-libc has its own build target. This target is listed
|
|
using the ``add_entrypoint_object`` rule. This rule generates a single object
|
|
file containing the implementation of the entrypoint.
|
|
|
|
Targets for entrypoint libraries
|
|
--------------------------------
|
|
|
|
Standards like POSIX require that a libc provide certain library files like
|
|
``libc.a``, ``libm.a``, etc. The targets for such library files are listed in
|
|
the ``lib`` directory as ``add_entrypoint_library`` targets. An
|
|
``add_entrypoint_library`` target takes a list of ``add_entrypoint_object``
|
|
targets and produces a static library containing the object files corresponding
|
|
to the ``add_entrypoint_targets``.
|