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# Copyright (C) 2023 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
load("@gbl//toolchain:gbl_toolchain.bzl", "build_with_platform")
load("@gbl_llvm_prebuilts//:info.bzl", "gbl_llvm_tool_path")
load("@rules_rust//rust:defs.bzl", "rust_binary")
package(
default_visibility = ["//visibility:public"],
)
rust_binary(
name = "main",
srcs = [
"src/main.rs",
"src/riscv64.rs",
"src/utils.rs",
],
linker_script = select({
"@gbl//toolchain:gbl_rust_elf_riscv64": "@gbl//efi/arch/riscv64:riscv64_efi.lds",
"//conditions:default": None,
}),
rustc_flags = [
"-C",
"panic=abort",
],
deps = [
"@gbl//libboot",
"@gbl//libbootimg",
"@gbl//libefi",
"@gbl//libfdt",
"@gbl//libstorage",
"@gbl//third_party/libzbi",
] + select({
"@gbl//toolchain:gbl_rust_elf_riscv64": ["@gbl//efi/arch/riscv64:efi_arch_deps_riscv64"],
"//conditions:default": [],
}),
)
genrule(
name = "gbl_efi",
srcs = [":main"],
outs = ["gbl.efi"],
cmd = select({
# For RISCV target, existing toolchain can only generate ELF format image.
# The current solution is to manually add a PE/COFF header at image
# start and use objcopy to remove the ELF header to make it a PE/COFF image.
# Also use `elf_static_relocation_checker` to check that our relocation library
# can handle all the generated relocation types. The following expands to two commands:
#
# 1. `llvm-objcopy <elf image> -O binary <efi image>`
# 2. `elf_static_relocation_checker <elf image> <efi image>`
"@gbl//toolchain:gbl_rust_elf_riscv64": """
{} -O binary $(location @gbl//efi:main) $(OUTS) && \\
$(location @gbl//libelf:elf_static_relocation_checker) $(SRCS) $(OUTS)
""".format(gbl_llvm_tool_path("llvm-objcopy")),
"//conditions:default": "cp $(SRCS) $(OUTS)",
}),
tools = select({
"@gbl//toolchain:gbl_rust_elf_riscv64": ["@gbl//libelf:elf_static_relocation_checker"],
"//conditions:default": [],
}),
)
build_with_platform(
name = "x86_64",
platform = "@gbl//toolchain:gbl_uefi_x86_64",
deps = [":gbl_efi"],
)
build_with_platform(
name = "x86_32",
platform = "@gbl//toolchain:gbl_uefi_x86_32",
deps = [":gbl_efi"],
)
build_with_platform(
name = "aarch64",
platform = "@gbl//toolchain:gbl_uefi_aarch64",
deps = [":gbl_efi"],
)
build_with_platform(
name = "riscv64",
platform = "@gbl//toolchain:gbl_elf_riscv64",
deps = [":gbl_efi"],
)
filegroup(
name = "all_platforms",
srcs = [
":aarch64",
":riscv64",
":x86_32",
":x86_64",
],
)
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