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From 32e35a2f179d1b036d2eb699d77f869f7787f36b Mon Sep 17 00:00:00 2001
From: Adrian Herrera <adrian.herrera@arm.com>
Date: Tue, 8 Dec 2020 20:12:55 +0000
Subject: [PATCH] util: m5ops, optional extra build flags
This increases compilation control for users. Main use case is building
m5ops as part of an image distribution. Specifying a different sysroot
or dynamic linker may be required when the cross toolchain is built as
part of the process.
Change-Id: Icbd3faa92ea6e084fc4a9b2db83129bce73faf21
Signed-off-by: Adrian Herrera <adrian.herrera@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/38416
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Upstream-Status: Accepted [https://gem5-review.googlesource.com/c/public/gem5/+/38416]
Expected version: v20.2
---
util/m5/SConstruct | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/util/m5/SConstruct b/util/m5/SConstruct
index bbae8d9bbf..a37573d763 100644
--- a/util/m5/SConstruct
+++ b/util/m5/SConstruct
@@ -136,16 +136,24 @@ for root, dirs, files in os.walk(abspath(src_dir)):
#
# This also considers scons command line settings which may look like
# environment variables, but are set after "scons" on the command line.
- def get_abi_opt(name, default):
+ def _extract_abi_opt_val(name, default):
var_name = env.subst('${ABI}.%s' % name)
- env[name] = os.environ.get(
- var_name, ARGUMENTS.get(var_name, default))
+ return os.environ.get(var_name, ARGUMENTS.get(var_name, default))
+ def get_abi_opt(name, default):
+ env[name] = _extract_abi_opt_val(name, default)
+ def append_abi_opt(name):
+ env.Append(**{ name: _extract_abi_opt_val(name, '') })
# Process the ABI's settings in the SConsopts file, storing them
# in a copy of the primary environment.
env.SConscript(Dir(root).File('SConsopts'),
exports=[ 'env', 'get_abi_opt' ])
+ # The user can pass extra build flags for each ABI
+ append_abi_opt('CCFLAGS')
+ append_abi_opt('CXXFLAGS')
+ append_abi_opt('LINKFLAGS')
+
# Once all the options have been configured, set up build targets for
# this abi.
abi_dir = build_dir.Dir(env.subst('${ABI}'))
--
2.17.1
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