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# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# This is an gyp include to use YASM for compiling assembly files.
#
# Files to be compiled with YASM should have an extension of .asm.
#
# There are two variables for this include:
# yasm_flags : Pass additional flags into YASM.
# yasm_output_path : Output directory for the compiled object files.
#
# Sample usage:
# 'sources': [
# 'ultra_optimized_awesome.asm',
# ],
# 'variables': {
# 'yasm_flags': [
# '-I', 'assembly_include',
# ],
# 'yasm_output_path': '<(SHARED_INTERMEDIATE_DIR)/project',
# },
# 'includes': [
# 'third_party/yasm/yasm_compile.gypi'
# ],
{
'variables': {
'yasm_flags': [],
'conditions': [
[ 'use_system_yasm==0', {
'yasm_path': '<(PRODUCT_DIR)/yasm<(EXECUTABLE_SUFFIX)',
}, {
'yasm_path': '<!(which yasm)',
}],
# Define yasm_flags that pass into YASM.
[ 'os_posix==1 and OS!="mac" and target_arch=="ia32"', {
'yasm_flags': [
'-felf32',
'-m', 'x86',
],
}],
[ 'os_posix==1 and OS!="mac" and target_arch=="x64"', {
'yasm_flags': [
'-DPIC',
'-felf64',
'-m', 'amd64',
],
}],
[ 'OS=="mac" and target_arch=="ia32"', {
'yasm_flags': [
'-fmacho32',
'-m', 'x86',
],
}],
[ 'OS=="win" and target_arch=="ia32"', {
'yasm_flags': [
'-DPREFIX',
'-fwin32',
'-m', 'x86',
],
}],
# Define output extension.
['OS=="win"', {
'asm_obj_extension': 'obj',
}, {
'asm_obj_extension': 'o',
}],
],
}, # variables
'conditions': [
# Only depend on YASM on x86 systems, do this so that compiling
# .asm files for ARM will fail.
['use_system_yasm==0 and ( target_arch=="ia32" or target_arch=="x64" )', {
'dependencies': [
'<(DEPTH)/third_party/yasm/yasm.gyp:yasm#host',
],
}],
], # conditions
'rules': [
{
'rule_name': 'assemble',
'extension': 'asm',
'inputs': [ '<(yasm_path)', ],
'outputs': [
'<(yasm_output_path)/<(RULE_INPUT_ROOT).<(asm_obj_extension)',
],
'action': [
'<(yasm_path)',
'<@(yasm_flags)',
'-o', '<(yasm_output_path)/<(RULE_INPUT_ROOT).<(asm_obj_extension)',
'<(RULE_INPUT_PATH)',
],
'process_outputs_as_sources': 1,
'message': 'Compile assembly <(RULE_INPUT_PATH).',
},
], # rules
}
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