commit d9e1507e7e379803777a986a19bed00331012686
author Yecheng Zhao <zyecheng@google.com> Tue Mar 16 09:28:16 2021 -0700
committer CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Mar 16 23:58:39 2021 +0000
tree 97b151a9e2f5ac801dbae7b1c7b9d4b89e738b9d
parent b73d60c5ccc1632977db7a88e408c95197c361d3

[ssl] Add boringssl build script.

Add a build script for building boringssl library. The script currently
defines a library target suitable for baremetal use.

generate_build_files.py is a python script for generating files needed
for gn build. The script is used by a number of other google projects
that build boringssl. It generates the following files:

BUILD.generated.gni -- A .gni file that defines lists of source files
for building crypto library, ssl library, tool and fuzzer etc.

BUILD.generated_tests.gni -- Lists of source files for test.

crypto_test_data.cc

err_data.c -- error string table.

The high level build script BUILD.gn is added by this CL.

The baremetal target excludes all source files that require file system
and socket support. But some source files still try to include
<sys/socket.h>. Thus, a baremetal_sysdeps folder is added to fake an
empty socket header to avoid compilation error. boringssl_utils.cc
implements a logic for loading certificate/crls from buffer, as upstream
boringssl only supports loading from files which may not be viable on
embeded platform.

Change-Id: I49bf2a645b4e5a86c15d1c74a48fe5b5d251baa8
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/experimental/+/38080
Commit-Queue: Yecheng Zhao <zyecheng@google.com>
Reviewed-by: Ali Zhang <alizhang@google.com>
Reviewed-by: Varun Sharma <vars@google.com>