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103 lines
2.4 KiB
103 lines
2.4 KiB
# Copyright 2020 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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# Disable obnoxious ABI warning.
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#
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# GCC 7.1 adds an over-zealous ABI warning with little useful information
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# on how to resolve the issue. The warning you get is:
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#
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# note: parameter passing for argument of type '...' changed in GCC 7.1
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#
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# There is no other information, and searching for the error is needed to
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# understand what is happening. For upstream Pigweed, we compile from
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# source so this is irrelevant; so disable it.
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#
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# See: https://gcc.gnu.org/gcc-7/changes.html (search for "psabi").
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# https://gcc.gnu.org/ml/gcc/2017-05/msg00073.html
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config("disable_psabi_warning") {
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cflags = [ "-Wno-psabi" ]
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}
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config("cortex_common") {
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asmflags = [
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"-mabi=aapcs",
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"-mthumb",
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]
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cflags = asmflags + [
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"-specs=nano.specs",
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"-specs=nosys.specs",
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]
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ldflags = cflags + [
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"-lnosys",
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"-lc",
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]
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}
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config("enable_float_printf") {
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cflags = [ "-u_printf_float" ]
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ldflags = cflags
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}
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config("cortex_m0plus") {
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cflags = [ "-mcpu=cortex-m0plus" ]
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asmflags = cflags
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ldflags = cflags
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}
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config("cortex_m3") {
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cflags = [ "-mcpu=cortex-m3" ]
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asmflags = cflags
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ldflags = cflags
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}
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config("cortex_m4") {
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cflags = [ "-mcpu=cortex-m4" ]
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asmflags = cflags
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ldflags = cflags
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}
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config("cortex_m7") {
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cflags = [ "-mcpu=cortex-m7" ]
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asmflags = cflags
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ldflags = cflags
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}
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config("cortex_software_fpu") {
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cflags = [ "-mfloat-abi=soft" ]
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asmflags = cflags
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ldflags = cflags
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}
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config("cortex_hardware_fpu") {
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cflags = [
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"-mfloat-abi=hard",
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"-mfpu=fpv4-sp-d16",
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]
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asmflags = cflags
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defines = [ "PW_ARMV7M_ENABLE_FPU=1" ]
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ldflags = cflags
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}
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config("cortex_hardware_fpu_v5") {
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cflags = [
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"-mfloat-abi=hard",
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"-mfpu=fpv5-d16",
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]
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asmflags = cflags
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defines = [ "PW_ARMV7M_ENABLE_FPU=1" ]
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ldflags = cflags
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}
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