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tools/build/make.py: Avoid calling brew --prefix on macOS unnecessarily

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If all the require variables (XCC/XCXX/XCPP/XLD) are already set in the
environment, we don't have to infer a default value for the cross toolchain
path. This avoids an additional `brew --prefix` call when building with
cheribuild (since it already sets all these variables).
This commit is contained in:
Alex Richardson 2021-03-05 10:21:12 +00:00
parent 2b9dbcd390
commit 2b181156c8
1 changed files with 15 additions and 13 deletions
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28
tools/build/make.py
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@ -119,6 +119,15 @@ def check_required_make_env_var(varname, binary_name, bindir):
if parsed_args.debug:
run([guess, "--version"])
def check_xtool_make_env_var(varname, binary_name):
# Avoid calling brew --prefix on macOS if all variables are already set:
if os.getenv(varname):
return
global parsed_args
if parsed_args.cross_bindir is None:
parsed_args.cross_bindir = default_cross_toolchain()
return check_required_make_env_var(varname, binary_name,
parsed_args.cross_bindir)
def default_cross_toolchain():
# default to homebrew-installed clang on MacOS if available
@ -170,8 +179,6 @@ def default_cross_toolchain():
except ImportError:
pass
parsed_args, bmake_args = parser.parse_known_args()
if parsed_args.cross_bindir is None:
parsed_args.cross_bindir = default_cross_toolchain()
MAKEOBJDIRPREFIX = os.getenv("MAKEOBJDIRPREFIX")
if not MAKEOBJDIRPREFIX:
@ -209,16 +216,11 @@ def default_cross_toolchain():
# On non-FreeBSD we need to explicitly pass XCC/XLD/X_COMPILER_TYPE
use_cross_gcc = parsed_args.cross_compiler_type == "gcc"
check_required_make_env_var("XCC", "gcc" if use_cross_gcc else "clang",
parsed_args.cross_bindir)
check_required_make_env_var("XCXX",
"g++" if use_cross_gcc else "clang++",
parsed_args.cross_bindir)
check_required_make_env_var("XCPP",
"cpp" if use_cross_gcc else "clang-cpp",
parsed_args.cross_bindir)
check_required_make_env_var("XLD", "ld" if use_cross_gcc else "ld.lld",
parsed_args.cross_bindir)
check_xtool_make_env_var("XCC", "gcc" if use_cross_gcc else "clang")
check_xtool_make_env_var("XCXX", "g++" if use_cross_gcc else "clang++")
check_xtool_make_env_var("XCPP",
"cpp" if use_cross_gcc else "clang-cpp")
check_xtool_make_env_var("XLD", "ld" if use_cross_gcc else "ld.lld")
# We also need to set STRIPBIN if there is no working strip binary
# in $PATH.
@ -232,7 +234,7 @@ def default_cross_toolchain():
else:
strip_binary = "strip"
check_required_make_env_var("STRIPBIN", strip_binary,
parsed_args.cross_bindir)
parsed_args.host_bindir)
if os.getenv("STRIPBIN") or "STRIPBIN" in new_env_vars:
# If we are setting STRIPBIN, we have to set XSTRIPBIN to the
# default if it is not set otherwise already.