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#!/usr/bin/env python2.7
#
# Copyright 2017 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import re
import subprocess
import sys
#clang = ['clang++']
clang = ['ccache', 'clang-3.9', '-x', 'c++']
ndk = '/Users/mtklein/brew/opt/android-ndk/'
objdump = 'gobjdump'
#ndk = '/home/mtklein/ndk/'
#objdump = '/home/mtklein/binutils-2.27/binutils/objdump'
cflags = ['-std=c++11', '-Os', '-DJUMPER',
'-fomit-frame-pointer', '-ffp-contract=fast' ]
sse2 = '-mno-red-zone -msse2 -mno-sse3 -mno-ssse3 -mno-sse4.1'.split()
subprocess.check_call(clang + cflags + sse2 +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'sse2.o'])
subprocess.check_call(clang + cflags + sse2 + ['-DWIN'] +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'win_sse2.o'])
sse41 = '-mno-red-zone -msse4.1'.split()
subprocess.check_call(clang + cflags + sse41 +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'sse41.o'])
subprocess.check_call(clang + cflags + sse41 + ['-DWIN'] +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'win_sse41.o'])
avx = '-mno-red-zone -mavx'.split()
subprocess.check_call(clang + cflags + avx +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'avx.o'])
subprocess.check_call(clang + cflags + avx + ['-DWIN'] +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'win_avx.o'])
hsw = '-mno-red-zone -mavx2 -mfma -mf16c'.split()
subprocess.check_call(clang + cflags + hsw +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'hsw.o'])
subprocess.check_call(clang + cflags + hsw + ['-DWIN'] +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'win_hsw.o'])
aarch64 = [
'--target=aarch64-linux-android',
'--sysroot=' + ndk + 'platforms/android-21/arch-arm64',
]
subprocess.check_call(clang + cflags + aarch64 +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'aarch64.o'])
vfp4 = [
'--target=armv7a-linux-android',
'--sysroot=' + ndk + 'platforms/android-18/arch-arm',
'-mfpu=neon-vfpv4',
'-mfloat-abi=hard',
]
subprocess.check_call(clang + cflags + vfp4 +
['-c', 'src/jumper/SkJumper_stages.cpp'] +
['-o', 'vfp4.o'])
def parse_object_file(dot_o, array_type, target=None):
cmd = [objdump]
if target:
cmd += ['--target', target]
# Look for sections we know we can't handle.
section_headers = subprocess.check_output(cmd + ['-h', dot_o])
for section in ['.literal4', '.literal8', '.literal16', '.const']:
if section in section_headers:
print >>sys.stderr, 'Found %s section, which we cannot handle.' % section
assert section not in section_headers
# Ok. Let's disassemble.
active = False
disassemble = ['-d', '--insn-width=9', dot_o]
for line in subprocess.check_output(cmd + disassemble).split('\n'):
line = line.strip()
if not line or line.startswith(dot_o) or line.startswith('Disassembly'):
continue
# E.g. 00000000000003a4 <_load_f16>:
m = re.match('''[0-9a-f]+ <_?(.*)>:''', line)
if m:
if active:
print '};'
print
print 'CODE const', array_type, m.group(1) + '[] = {'
active = True
continue
columns = line.split('\t')
code = columns[1]
if len(columns) >= 4:
inst = columns[2]
args = columns[3]
else:
inst, args = columns[2], ''
if ' ' in columns[2]:
inst, args = columns[2].split(' ', 1)
code, inst, args = code.strip(), inst.strip(), args.strip()
dehex = lambda x: '0x'+x
if array_type == 'uint8_t':
dehex = lambda x: str(int(x, 16))
hexed = ''.join(dehex(x) + ',' for x in code.split(' '))
print ' ' + hexed + ' '*(40-len(hexed)) + \
'//' + inst + (' '*(14-len(inst)) + args if args else '')
print '};'
sys.stdout = open('src/jumper/SkJumper_generated.cpp', 'w')
print '''/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
// This file is generated semi-automatically with this command:
// $ src/jumper/build_stages.py
#include <stdint.h>
#if defined(_MSC_VER)
#pragma section("code", read,execute)
#define CODE extern "C" __declspec(allocate("code"))
#elif defined(__MACH__)
#define CODE extern "C" __attribute__((section("__TEXT,__text")))
#else
#define CODE extern "C" __attribute__((section(".text")))
#endif
'''
print '#if defined(__aarch64__)'
parse_object_file('aarch64.o', 'uint32_t')
print '#elif defined(__arm__)'
parse_object_file('vfp4.o', 'uint32_t', target='elf32-littlearm')
print '#elif defined(__x86_64__)'
parse_object_file('hsw.o', 'uint8_t')
parse_object_file('avx.o', 'uint8_t')
parse_object_file('sse41.o', 'uint8_t')
parse_object_file('sse2.o', 'uint8_t')
print '#elif defined(_M_X64)'
parse_object_file('win_hsw.o', 'uint8_t')
parse_object_file('win_avx.o', 'uint8_t')
parse_object_file('win_sse41.o', 'uint8_t')
parse_object_file('win_sse2.o', 'uint8_t')
print '#endif'
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