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Build Skia for a bare-bones embedded Linux system.

Browse Source 
Motivation:

    I have downloaded a barebones Linux system built for 64-bit ARM
    from linaro.org and a ARMv8 Foundation Model from arm.com to run
    it on.  This will let us build and test Skia on ARM64 before we
    aquire hardware to allow that.  This CL introduces the changes to
    the build files necessary to build Skia on a barebones embedded
    Linux system.  I tested it with the aarch64 GCC compiler provided
    by linaro.org.

Changes:

    Add a "barelinux" target_os for the DEPS file.  Add an optional
    git download of zlib.

    Changes to gyp files: these changes abstract out libpng, libz, and
    giflib so that images.gyp doesn't know whether they are static or
    dynamically linked.  I also add the variables skia_giflib_static,
    skia_libpng_static, skia_zlib_static, and skia_freetype_static,
    all of which default to false but when set to true will override
    the behavior of the giflib, libpng, zlib, and freetype build
    targets to require them to build statically.  Also, the
    skia_no_fontconfig variable turns off use of the fontconfig service.

	Scripts in platform_tools/barelinux/bin:

    arm64_download - this script downloads the Linaro's ARMv8 Aarch64
	toolchain and minimal embedded Linux system as well as ARM's
	foundation model.  The required files are mirrored on Google
	Cloud.  The script then starts a emulated Arm64 Linux system in
	the background.  After the boot is complete, you can SSH into the
	system at port 8022 via user@localhost.  The SSH key will be
	downloaded into the working directery as well.

	download_deps - Uses gclient to download Skia's dependencies for a
    bare Linux system (the normal dependecies plus giflib, libpng, and
    zlib.)

	barelinux_make - this script builds a version of skia that does
    not depend on external libraries, perfect for putting in an
    embedded system running Linux.  Assumes you have run download_deps
    first.

To test:
    To build a barelinux target, use the barelinux_make script.

    To build for a armv8 system: skia_arch_type=arm arm_neon=0 armv7=1
    armv8=1 arm_thumb=0 skia_arch_width=64 and set the CC and CXX
    variables to point at the cross-compiler downloaded by
    arm64_download.

R=djsollen@google.com, scroggo@google.com, borenet@google.com

Author: halcanary@google.com

Review URL: https://codereview.chromium.org/152513007

git-svn-id: http://skia.googlecode.com/svn/trunk@13570 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
commit-bot@chromium.org 2014-02-24 20:22:34 +00:00
parent b48be71be1
commit f84722e477
17 changed files with 697 additions and 121 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
DEPS
View File

@ -36,6 +36,17 @@ deps_os = {
"platform_tools/chromeos/toolchain/src/third_party/chromite": "https://chromium.googlesource.com/chromiumos/chromite.git@d6a4c7e0ee4d53ddc5238dbddfc0417796a70e54",
"platform_tools/chromeos/toolchain/src/third_party/pyelftools": "https://chromium.googlesource.com/chromiumos/third_party/pyelftools.git@bdc1d380acd88d4bfaf47265008091483b0d614e",
},
# barelinux is a DEPS target that has no shared libraries to link
# to, similar to android or chromeos.
"barelinux": {
"third_party/externals/giflib" :
"https://android.googlesource.com/platform/external/giflib.git@android-4.2.2_r1.2",
"third_party/externals/libpng" :
"https://android.googlesource.com/platform/external/libpng.git@android-4.2.2_r1.2",
"third_party/externals/zlib" :
"https://android.googlesource.com/platform/external/zlib.git@android-4.2.2_r1.2",
}
}
#hooks = [

40
gyp/common_variables.gypi
View File

@ -91,8 +91,42 @@
'arm_version%': 0,
'arm_neon%': 0,
}],
[ 'skia_os in ["android", "nacl"] and not skia_android_framework',
# skia_freetype_static - on OS variants that normally would
# dynamically link the system FreeType library, don't do
# that; instead statically link to the version in
# third_party/freetype and third_party/externals/freetype.
{
'skia_freetype_static%': '1',
}, {
'skia_freetype_static%': '0',
}
],
],
# skia_giflib_static - on OS variants that normally would link giflib
# with '-lgif' and include the headers from '/usr/include/gif_lib.h',
# don't do that; instead compile and staticlly link the version of
# giflib in third_party/externals/giflib.
'skia_giflib_static%': '0',
# skia_libpng_static - on OS variants that normally would link libpng
# with '-lpng' and include the headers from '/usr/include/png.h',
# don't do that; instead compile and staticlly link the version of
# libpng in third_party/externals/libpng.
'skia_libpng_static%': '0',
# skia_zlib_static - on OS variants that normally would link zlib with
# '-lz' or libz.dylib and include the headers from '<zlib.h>',
# don't do that; instead compile and staticlly link the version of
# zlib in third_party/externals/zlib.
'skia_zlib_static%': '0',
# skia_no_fontconfig - On POSIX systems that would normally use the
# SkFontHost_fontconfig interface; use the SkFontHost_linux
# version instead.
'skia_no_fontconfig%': '0',
'skia_sanitizer%': '',
'skia_scalar%': 'float',
'skia_mesa%': 0,
@ -151,6 +185,12 @@
'arm_neon_optional%': 0,
'skia_os%': '<(skia_os)',
'os_posix%': '<(os_posix)',
'skia_freetype_static%': '<(skia_freetype_static)',
'skia_giflib_static%': '<(skia_giflib_static)',
'skia_libpng_static%': '<(skia_libpng_static)',
'skia_zlib_static%': '<(skia_zlib_static)',
'skia_no_fontconfig%': '<(skia_no_fontconfig)',
'skia_sanitizer%': '<(skia_sanitizer)',
'skia_scalar%': '<(skia_scalar)',
'skia_mesa%': '<(skia_mesa)',

107
gyp/freetype.gyp
View File

@ -5,54 +5,71 @@
'target_name': 'freetype',
'type': 'none',
'conditions': [
[ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]', {
'direct_dependent_settings': {
'include_dirs' : [
'/usr/include/freetype2',
[ 'skia_freetype_static',
{
'dependencies': [
'freetype_static'
],
'link_settings': {
'libraries': [
'-lfreetype',
'export_dependent_settings': [
'freetype_static'
],
'conditions': [
[ 'skia_os in ["android", "nacl"]',
{
'direct_dependent_settings': {
'defines': [
# Both Android and NaCl provide at least FreeType 2.4.0
'SK_FONTHOST_FREETYPE_RUNTIME_VERSION=0x020400',
'SK_CAN_USE_DLOPEN=0',
],
}
}
]
],
}, { # (not skia_freetype_static)
# dynamic linking depends on the OS:
'conditions': [
[ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]',
{
'direct_dependent_settings': {
'include_dirs' : [
'/usr/include/freetype2',
],
'link_settings': {
'libraries': [
'-lfreetype',
],
},
'defines': [
# The font host requires at least FreeType 2.3.0
# at runtime.
'SK_FONTHOST_FREETYPE_RUNTIME_VERSION=0x020300',
'SK_CAN_USE_DLOPEN=1',
],
}
},
],
'defines': [
#The font host requires at least FreeType 2.3.0 at runtime.
'SK_FONTHOST_FREETYPE_RUNTIME_VERSION=0x020300',\
'SK_CAN_USE_DLOPEN=1',
[ 'skia_android_framework',
{
'direct_dependent_settings': {
'defines': [
# Android provides at least FreeType 2.4.0
'SK_FONTHOST_FREETYPE_RUNTIME_VERSION=0x020400',
'SK_CAN_USE_DLOPEN=0',
],
},
'include_dirs': [
'external/expat/lib',
'external/freetype/include',
],
'libraries': [
'-lft2',
],
}
],
}
},
}],
[ 'skia_os in ["android", "nacl"]', {
'dependencies': [
'freetype_static'
],
'export_dependent_settings': [
'freetype_static'
],
'direct_dependent_settings': {
'defines': [
# Both Android and NaCl provide at least FreeType 2.4.0
'SK_FONTHOST_FREETYPE_RUNTIME_VERSION=0x020400',
'SK_CAN_USE_DLOPEN=0',
],
},
}],
[ 'skia_android_framework', {
'include_dirs': [
'external/expat/lib',
'external/freetype/include',
],
'libraries': [
'-lft2',
],
# Remove these, and use the system's freetype instead.
'dependencies!': [
'freetype_static',
],
'export_dependent_settings!': [
'freetype_static',
]
}],
}
],
],
},
{
@ -61,7 +78,7 @@
'standalone_static_library': 1,
'dependencies': [
# we are dependent upon PNG for color emoji glyphs
'images.gyp:images'
'libpng.gyp:libpng',
],
'includes': [
# common freetype sources needed for both the base Skia build and the

53
gyp/giflib.gyp Normal file
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@ -0,0 +1,53 @@
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
{
'variables': {
'skia_warnings_as_errors': 0,
},
'targets': [
{
'target_name': 'giflib',
'conditions': [
[ 'skia_giflib_static',
{
'type': 'static_library',
'defines': [
'HAVE_CONFIG_H',
],
'include_dirs': [
'../third_party/externals/giflib',
],
'dependencies': [
],
'direct_dependent_settings': {
'include_dirs': [
'../third_party/externals/giflib',
],
},
'cflags': [
'-w',
],
'sources': [
'../third_party/externals/giflib/dgif_lib.c',
'../third_party/externals/giflib/gifalloc.c',
'../third_party/externals/giflib/gif_err.c',
],
}, { # not skia_giflib_static
'type': 'none',
'direct_dependent_settings': {
'link_settings': {
'libraries': [
'-lgif',
],
},
},
}
],
]
}
]
}

29
gyp/images.gyp
View File

@ -119,16 +119,14 @@
],
}],
[ 'skia_os in ["linux", "freebsd", "openbsd", "solaris"]', {
# Any targets that depend on this target should link in libpng, libgif, and
# our code that calls it.
# See http://code.google.com/p/gyp/wiki/InputFormatReference#Dependent_Settings
'link_settings': {
'libraries': [
'-lgif',
'-lpng',
'-lz',
],
},
'export_dependent_settings': [
'libpng.gyp:libpng',
'giflib.gyp:giflib'
],
'dependencies': [
'libpng.gyp:libpng',
'giflib.gyp:giflib'
],
# end libpng/libgif stuff
}],
# FIXME: NaCl should be just like linux, etc, above, but it currently is separated out
@ -139,12 +137,6 @@
'../src/images/SkImageDecoder_libgif.cpp',
'../src/images/SkMovie_gif.cpp',
],
'link_settings': {
'libraries': [
'-lpng',
'-lz',
],
},
}],
[ 'skia_os == "android"', {
'include_dirs': [
@ -171,11 +163,6 @@
'dependencies': [
'chromeos_deps.gyp:gif',
],
'link_settings': {
'libraries': [
'-lpng',
],
},
}],
[ 'skia_os == "ios"', {
'include_dirs': [

3
gyp/libjpeg.gyp
View File

@ -104,10 +104,9 @@
'cflags': [
'-w', # supresses warnings
],
},
],
}, {
}, { ## use_system_libjpeg != 0
'targets': [
{
'target_name': 'libjpeg',

88
gyp/libpng.gyp Normal file
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@ -0,0 +1,88 @@
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
{
'variables': {
'skia_warnings_as_errors': 0,
},
'targets': [
{
'target_name': 'libpng',
'conditions': [
[ 'skia_libpng_static',
{
'type': 'static_library',
'include_dirs': [
'../third_party/externals/libpng',
],
'dependencies': [
'zlib.gyp:zlib',
],
'export_dependent_settings': [
'zlib.gyp:zlib',
],
'direct_dependent_settings': {
'include_dirs': [
'../third_party/externals/libpng',
],
},
'cflags': [
'-w',
'-fvisibility=hidden',
],
'sources': [
'../third_party/externals/libpng/png.c',
'../third_party/externals/libpng/pngerror.c',
'../third_party/externals/libpng/pnggccrd.c',
'../third_party/externals/libpng/pngget.c',
'../third_party/externals/libpng/pngmem.c',
'../third_party/externals/libpng/pngpread.c',
'../third_party/externals/libpng/pngread.c',
'../third_party/externals/libpng/pngrio.c',
'../third_party/externals/libpng/pngrtran.c',
'../third_party/externals/libpng/pngrutil.c',
'../third_party/externals/libpng/pngset.c',
'../third_party/externals/libpng/pngtrans.c',
'../third_party/externals/libpng/pngvcrd.c',
'../third_party/externals/libpng/pngwio.c',
'../third_party/externals/libpng/pngwrite.c',
'../third_party/externals/libpng/pngwtran.c',
'../third_party/externals/libpng/pngwutil.c',
],
}, { # not skia_libpng_static
'type': 'none',
'conditions': [
[ 'skia_os == "android"',
{
# TODO(halcanary): merge all png targets into this file.
'dependencies': [
'android_deps.gyp:png',
],
'export_dependent_settings': [
'android_deps.gyp:png',
],
}, { # skia_os != "android"
'dependencies': [
'zlib.gyp:zlib',
],
'export_dependent_settings': [
'zlib.gyp:zlib',
],
'direct_dependent_settings': {
'link_settings': {
'libraries': [
'-lpng',
],
},
},
}
]
]
}
]
],
},
]
}

11
gyp/lua.gyp
View File

@ -57,7 +57,16 @@
],
},
'defines': [
"getlocaledecpoint()='.'"
"getlocaledecpoint()='.'",
],
'conditions': [
['skia_os != "win"',
{
'defines': [
'LUA_USE_POSIX', # Fix warning re dangerous tmpnam.
],
}
],
],
},
],

11
gyp/most.gyp
View File

@ -4,6 +4,9 @@
# - debugger: this requires QT to build
#
{
'variables': {
'skia_skip_gui%': 0,
},
'targets': [
{
'target_name': 'most',
@ -29,6 +32,14 @@
['skia_gpu == 1', {
'dependencies': [ 'dm.gyp:dm' ],
}],
[ 'skia_skip_gui',
{
'dependencies!': [
'SampleApp.gyp:SampleApp',
'skpskgr_test.gyp:*',
]
}
]
],
},
],

2
gyp/pdf.gyp
View File

@ -8,7 +8,7 @@
'standalone_static_library': 1,
'dependencies': [
'skia_lib.gyp:skia_lib',
'zlib.gyp:zlib',
'skflate.gyp:skflate',
],
'includes': [
'pdf.gypi',

2
gyp/pdfviewer_lib.gyp
View File

@ -44,7 +44,7 @@
],
'dependencies': [
'skia_lib.gyp:skia_lib',
'zlib.gyp:zlib',
'skflate.gyp:skflate',
],
},
],

33
gyp/ports.gyp
View File

@ -64,16 +64,29 @@
],
}],
[ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "chromeos"]', {
'link_settings': {
'libraries': [
'-lfontconfig',
'-ldl',
],
},
'sources': [
'../src/fonts/SkFontMgr_fontconfig.cpp',
'../src/ports/SkFontHost_fontconfig.cpp',
'../src/ports/SkFontConfigInterface_direct.cpp',
'conditions': [
[ 'skia_no_fontconfig', {
'link_settings': {
'libraries': [
'-ldl',
],
},
'sources': [
'../src/ports/SkFontHost_linux.cpp',
],
}, {
'link_settings': {
'libraries': [
'-lfontconfig',
'-ldl',
],
},
'sources': [
'../src/fonts/SkFontMgr_fontconfig.cpp',
'../src/ports/SkFontHost_fontconfig.cpp',
'../src/ports/SkFontConfigInterface_direct.cpp',
],
}]
],
}],
[ 'skia_os == "nacl"', {

26
gyp/skflate.gyp Normal file
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@ -0,0 +1,26 @@
# Target for including SkFlate.
{
'targets': [
{
'target_name': 'skflate',
'type': 'static_library',
'dependencies': [
'skia_lib.gyp:skia_lib',
],
'conditions': [
# When zlib is not availible on a system,
# SkFlate::HaveFlate will just return false.
[ 'skia_os != "win"',
{
'dependencies': [
'zlib.gyp:zlib',
],
}
],
],
'sources': [
'../src/core/SkFlate.cpp',
],
},
],
}

110
gyp/zlib.gyp
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@ -1,48 +1,78 @@
# Target for including zlib.
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
{
'variables': {
'skia_warnings_as_errors': 0,
},
'targets': [
{
'target_name': 'zlib',
'type': 'static_library',
'dependencies': [
'skia_lib.gyp:skia_lib',
],
'sources': [
'../include/core/SkFlate.h',
'../src/core/SkFlate.cpp',
],
'conditions': [
[ 'skia_os == "mac"', {
'link_settings': {
'libraries': [
'$(SDKROOT)/usr/lib/libz.dylib',
[ 'skia_zlib_static',
{
'type': 'static_library',
'include_dirs': [
'../third_party/externals/zlib',
],
},
'defines': [ 'SK_ZLIB_INCLUDE=<zlib.h>', ],
}],
[ 'skia_os == "ios"', {
'link_settings': {
'libraries': [
'$(SDKROOT)/usr/lib/libz.dylib',
'direct_dependent_settings': {
'defines': [
'SK_ZLIB_INCLUDE=<zlib.h>',
],
'include_dirs': [
'../third_party/externals/zlib',
],
},
'sources': [
'../third_party/externals/zlib/src/adler32.c',
'../third_party/externals/zlib/src/compress.c',
'../third_party/externals/zlib/src/crc32.c',
'../third_party/externals/zlib/src/deflate.c',
'../third_party/externals/zlib/src/gzclose.c',
'../third_party/externals/zlib/src/gzlib.c',
'../third_party/externals/zlib/src/gzread.c',
'../third_party/externals/zlib/src/gzwrite.c',
'../third_party/externals/zlib/src/infback.c',
'../third_party/externals/zlib/src/inffast.c',
'../third_party/externals/zlib/src/inflate.c',
'../third_party/externals/zlib/src/inftrees.c',
'../third_party/externals/zlib/src/trees.c',
'../third_party/externals/zlib/src/uncompr.c',
'../third_party/externals/zlib/src/zutil.c',
],
},
'defines': [ 'SK_ZLIB_INCLUDE=<zlib.h>', ],
}],
[ 'skia_os in ["linux", "freebsd", "openbsd", "solaris", "android", "nacl"]', {
'link_settings': { 'libraries': [ '-lz', ], },
'conditions': [
[ 'skia_android_framework==0', {
'defines': [ 'SK_ZLIB_INCLUDE=<zlib.h>', ],
}],
],
}],
[ 'skia_android_framework', {
'include_dirs': [
'external/zlib',
],
}],
],
},
],
}, { # not skia_zlib_static
'type': 'none',
'direct_dependent_settings': {
'conditions': [
[ 'skia_android_framework', {
'include_dirs': [
'external/zlib',
],
}, {
'defines': [
'SK_ZLIB_INCLUDE=<zlib.h>',
],
}]
],
'link_settings': {
'conditions': [
[ 'skia_os == "mac" or skia_os == "ios"', {
'libraries': [
'$(SDKROOT)/usr/lib/libz.dylib',
]
}, { # skia_os != "mac" and skia_os != "ios"
'libraries': [
'-lz',
]
}],
],
}
},
}
]
]
}
]
}

167
platform_tools/barelinux/bin/arm64_download Executable file
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@ -0,0 +1,167 @@
#!/bin/sh
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
usage() {
cat >&2 <<EOF
arm64_download - this script downloads the Linaro's ARMv8 Aarch64
toolchain and minimal embedded Linux system as well as ARM's
foundation model. The required files are mirrored on Google Cloud.
If the files are already located in the working directory, the
download can be skipped if the checksums match.
The script then starts a emulated Arm64 Linux system in the
background. After the boot is complete, you can SSH into the system
at port 8022 via user@localhost. The SSH key will be downloaded into
the working directery as well.
Requires gsutil, xz, tar, and gunzip.
Usage:
$0 WORKING_DIRECTORY
ssh-add WORKING_DIRECTORY/key
...wait...
ssh -p 8022 user@localhost
EOF
return 1
}
try() {
# print an error on nonzero return code
"$@"
local ret=$?
if [ $ret != 0 ] ; then
echo "'$@' failed and returned ${ret}." >&2
return $ret
fi
}
gsutil_check_get() {
local gurl="$1"
local file="$2"
if ! [ -f "$file" ] || \
[ "$(gsutil stat "$gurl" | sed -n 's/\W*Hash (md5):\W*//p')" \
!= "$(md5sum < "$file" | sed 's/\W*-//')" ] ; then
try gsutil cp "$gurl" "$file" || return
fi
}
download_compiler() {
local working_dir="$1"
local location="$2"
local toolchain="$3"
try cd "$working_dir" || return
try gsutil_check_get "gs://${location}/${toolchain}.tar.xz" \
"${working_dir}/${toolchain}.tar.xz" || return
(
cd "$working_dir"
xz --decompress --stdout < "${toolchain}.tar.xz" | tar xf -
)
local dir="${working_dir}/${toolchain}"
try test -d "$dir" || return
try test -x "${dir}/bin/aarch64-linux-gnu-gcc" || return
try test -x "${dir}/bin/aarch64-linux-gnu-g++" || return
}
download_runtime() {
local working_dir="$1"
local location="$2"
local firmware="$3"
local compressed_rootfs="$4"
local compressed_foundation_model="$5"
local keyfile="$6"
try gsutil_check_get "gs://${location}/${firmware}" \
"${working_dir}/firmware" || return
try gsutil_check_get "gs://${location}/${compressed_rootfs}" \
"${working_dir}/${compressed_rootfs}" || return
try xz --decompress --stdout \
< "${working_dir}/${compressed_rootfs}" \
> "${working_dir}/rootfs" || return
try test -f "${working_dir}/rootfs" || return
try gsutil_check_get "gs://${location}/${compressed_foundation_model}" \
"${working_dir}/${compressed_foundation_model}" || return
(
try cd "$working_dir" || return
try gunzip -c "$compressed_foundation_model" | try tar xf - || return
try test -d "Foundation_v8pkg" || return # Assert.
)
try gsutil_check_get "gs://${location}/${keyfile}" \
"${working_dir}/key" || return
chmod go= "${working_dir}/key"
}
start_arm64_image() {
local working_dir="$1"
local foundation_dir="${working_dir}/Foundation_v8pkg"
local foundation="${foundation_dir}/models/Linux64_GCC-4.1/Foundation_v8"
local firmware="${working_dir}/firmware"
local rootfs="${working_dir}/rootfs"
try test -d "$foundation_dir" || return
try test -x "$foundation" || return
try test -f "$firmware" || return
try test -f "$rootfs" || return
for PID in $(ps -o 'pid=' -C 'Foundation_v8') ; do
kill $PID
done
DISPLAY='' nohup \
"$foundation" \
--image="${firmware}" \
--cores=4 \
--block-device="${rootfs}" \
--network="nat" \
--network-nat-subnet="192.168.31.0/24" \
--network-nat-ports="8022=22" \
> /dev/null 2>&1 &
echo 'Listening to SSH on port 8022.'
}
arm64_download() {
local working_directory="$1"
local location="chromium-skia-gm/arm64env"
try mkdir -p "$working_directory" || return
try download_compiler \
"$working_directory" \
"$location" \
'gcc-linaro-aarch64-linux-gnu-4.8-2013.12_linux' \
|| return
local rootfs='vexpress64-openembedded_lamp-armv8-gcc-4.8_20131215-557'
try download_runtime \
"$working_directory" \
"$location" \
'img-foundation.axf' \
"${rootfs}.img.CLEAN_AND_CONFIGURED.xz" \
'FM000-KT-00035-r0p8-52rel06.tgz' \
'CLEAN_AND_CONFIGURED_key' \
|| return
try start_arm64_image \
"$working_directory" \
|| return
}
for command in gsutil xz tar gunzip; do
try command -v "$command" > /dev/null || usage || exit
done
if [ -z "$1" ] ; then
usage || exit
fi
try arm64_download "$1" || exit

96
platform_tools/barelinux/bin/barelinux_make Executable file
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@ -0,0 +1,96 @@
#!/bin/sh
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
usage() {
cat >&2 <<EOF
barelinux_make - this script builds a version of skia that does not
depend on external libraries, perfect for putting in an embedded
system running Linux.
Assumes that you have already run the download_deps script.
Usage:
$0 \\
[-o SKIA_OUT_DIR] [-c CC_EXE] [-x CXX_EXE] \\
[-t Debug | Release | Coverage | Release_Developer]\\
[GYP_DEFINES...]
Example use:
$0 \\
-o ~/build/skia/arg64gcc \\
-c ~/local/arm64/bin/aarch64-linux-gnu-gcc \\
-x ~/local/arm64/bin/aarch64-linux-gnu-g++ \\
skia_gpu=0 skia_arch_type=arm skia_arch_width=64 \\
armv7=1 armv8=1 arm_neon=0 arm_thumb=0
EOF
return 1
}
# BUILD_TYPE should be one of:
# Coverage, Debug, Release, or Release_Developer
BUILD_TYPE='Debug'
unset OPTIND
while getopts ":c:x:o:h" opt ; do
case $opt in
c) export CC="$OPTARG" ;;
x) export CXX="$OPTARG" ;;
o) export SKIA_OUT="$OPTARG";;
t) BUILD_TYPE="$OPTARG";;
h) usage || exit;;
?) echo "unknown option '$OPTARG'" >&2;
usage || exit;;
esac
done
# Append exra arguments to GYP_DEFINES variable.
shift $(( $OPTIND - 1 ))
GYP_DEFINES="${GYP_DEFINES} $*"
# If you move this script, this must be changed.
SKIA_SRC_DIR="$(cd "$(dirname "$0")/../../.."; pwd)"
try() {
# exit shell script on nonzero return code
"$@"
local ret=$?
if [ $ret != 0 ] ; then
echo "'$@' failed and returned ${ret}." >&2
return $ret
fi
}
is_set() {
test "$1" && test "$(eval echo \${$1})";
}
# Set a reasonable default.
is_set SKIA_OUT || export SKIA_OUT="${SKIA_SRC_DIR}/out/barelinux"
# Assume ninja is in your path
try command -v ninja > /dev/null || exit
try test -x "${SKIA_SRC_DIR}/gyp_skia" || exit
try mkdir -p "$SKIA_OUT" || exit
export GYP_GENERATORS="ninja"
export GYP_GENERATOR_FLAGS=""
export GYP_DEFINES="${GYP_DEFINES} \
skia_warnings_as_errors=0 \
skia_giflib_static=1 \
skia_libpng_static=1 \
skia_zlib_static=1 \
skia_freetype_static=1 \
skia_no_fontconfig=1 \
skia_poppler_enabled=0 \
skia_skip_gui=1 \
"
try "${SKIA_SRC_DIR}/gyp_skia" || exit
try test -d "${SKIA_OUT}/${BUILD_TYPE}" || exit
try ninja -C "${SKIA_OUT}/${BUILD_TYPE}" || exit

29
platform_tools/barelinux/bin/download_deps Executable file
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#!/bin/sh
# Copyright 2014 Google Inc.
#
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# download_deps - download Skia's dependencies for a bare Linux system
# (the normal dependecies plus giflib, libpng, and zlib.)
try() {
# print an error on nonzero return code
"$@"
local ret=$?
if [ $ret != 0 ] ; then
echo "'$@' failed and returned ${ret}." >&2
return $ret
fi
}
try command -v gclient > /dev/null || exit
cd "$(dirname "$0")/../../.."
try gclient config --unmanaged --name . \
'https://skia.googlesource.com/skia.git' || exit
echo 'target_os = ["barelinux"]' >> ./.gclient
try gclient sync --jobs=1 || exit