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BUILD.gn: Change the static/shared library template to component

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This changes the dawn_static_and_shared_library template to be a
dawn_component template that mimics the behavior of Chromium's
components.

This helps avoid issues where on non-component builds on Windows the CRT
would get linked statically in both the Dawn shared libraries and the
test executables, causing alloc/deallocs across library boundaries to
crash.

BUG=dawn:29

Change-Id: I69287a523cc0bf5f2e921982ea9c26dcfed82f11
Reviewed-on: https://dawn-review.googlesource.com/c/4040
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Corentin Wallez 2019-01-25 03:20:20 +00:00 committed by Commit Bot service account
parent fe92685bfc
commit da8ee83ee7
1 changed files with 19 additions and 12 deletions
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BUILD.gn
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@ -135,22 +135,23 @@ template("dawn_generator") {
}
###############################################################################
# Template to produce static and shared versions of Dawn's libraries
# Template to produce a component for one of Dawn's libraries.
###############################################################################
# Template that produces static and shared versions of the same library.
# Template that produces static and shared versions of the same library as well
# as a target similar to Chromium's component targets.
# - The shared version exports symbols and has dependent import the symbols
# as libname.so with target name libname_shared
# - The static library doesn't export symbols nor make dependents import them
# - The libname target is an alias for libname_shared. This is mostly to keep
# the GN convention that target_type(name) defines a "name" target.
# - The libname target is similar to a Chromium component and is an alias for
# either the static or the shared library.
#
# The DEFINE_PREFIX must be provided and must match the respective "_export.h"
# file.
#
# Example usage:
#
# dawn_static_and_shared_library("my_library") {
# dawn_component("my_library") {
# // my_library_export.h must use the MY_LIBRARY_IMPLEMENTATION and
# // MY_LIBRARY_SHARED_LIBRARY macros.
# DEFINE_PREFIX = "MY_LIBRARY"
@ -163,7 +164,7 @@ template("dawn_generator") {
# executable("foo") {
# deps = [ ":my_library_shared" ] // or :my_library for the same effect
# }
template("dawn_static_and_shared_library") {
template("dawn_component") {
# Copy the target_name in the local scope so it doesn't get shadowed in the
# definition of targets.
libname = target_name
@ -228,9 +229,15 @@ template("dawn_static_and_shared_library") {
}
group(libname) {
if (is_component_build) {
public_deps = [
":${libname}_shared",
]
} else {
public_deps = [
":${libname}_static",
]
}
}
}
@ -343,7 +350,7 @@ dawn_generator("libdawn_gen") {
]
}
dawn_static_and_shared_library("libdawn") {
dawn_component("libdawn") {
DEFINE_PREFIX = "DAWN"
public_deps = [
@ -688,7 +695,7 @@ source_set("libdawn_native_sources") {
# The static and shared libraries for libdawn_native. Most of the files are
# already compiled in libdawn_native_sources, but we still need to compile
# files defining exported symbols.
dawn_static_and_shared_library("libdawn_native") {
dawn_component("libdawn_native") {
DEFINE_PREFIX = "DAWN_NATIVE"
#Make headers publically visible
@ -757,7 +764,7 @@ dawn_generator("libdawn_wire_gen") {
]
}
dawn_static_and_shared_library("libdawn_wire") {
dawn_component("libdawn_wire") {
DEFINE_PREFIX = "DAWN_WIRE"
deps = [