70 lines
2.1 KiB
Plaintext
70 lines
2.1 KiB
Plaintext
# Copyright 2021 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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import("//build_overrides/pigweed.gni")
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import("$dir_pw_build/target_types.gni")
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import("micro_ecc.gni")
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if (dir_pw_third_party_micro_ecc != "") {
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config("public_config") {
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include_dirs = [ "$dir_pw_third_party_micro_ecc/" ]
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}
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config("internal_config") {
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# Suppress all upstream introduced warnings.
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cflags = [ "-w" ]
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# Disabling point compression saves 200 bytes.
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defines = [ "uECC_SUPPORT_COMPRESSED_POINT=0" ]
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}
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# Endianess is a public configuration for uECC as it determines how large
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# integers are interpreted in uECC public APIs.
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#
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# Big endian is a lot more common and thus is recommended unless you are
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# really resource-constrained or another uECC client expects little
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# endian.
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config("big_endian_config") {
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defines = [ "uECC_VLI_NATIVE_LITTLE_ENDIAN=0" ]
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}
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# Little endian can reduce call stack usage in native little endian
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# execution environments (as determined by processor state, memory
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# access config etc.)
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config("little_endian_config") {
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defines = [ "uECC_VLI_NATIVE_LITTLE_ENDIAN=1" ]
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}
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pw_source_set("micro_ecc") {
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public_configs = [
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":big_endian_config",
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":public_config",
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]
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configs = [ ":internal_config" ]
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sources = [ "$dir_pw_third_party_micro_ecc/uECC.c" ]
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}
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pw_source_set("micro_ecc_little_endian") {
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public_configs = [
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":little_endian_config",
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":public_config",
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]
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configs = [ ":internal_config" ]
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sources = [ "$dir_pw_third_party_micro_ecc/uECC.c" ]
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}
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} else {
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group("micro_ecc") {
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}
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}
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