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merged 2 commits into from
Jan 28, 2025
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CI: Build check with various optimization levels #546

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CI: Build check with various optimization levels
ChinYikMing Jan 25, 2025
0ffcdf6
Fix dtc submodule build error when using gcc -g or -O0
ChinYikMing Jan 25, 2025
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97 changes: 94 additions & 3 deletions .github/workflows/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -58,16 +58,107 @@ jobs:
uses: rlalik/setup-cpp-compiler@master
with:
compiler: ${{ matrix.compiler }}
- name: default build
- name: default build with -g
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: make -j$(nproc)
run: make OPT_LEVEL=-g -j$(nproc)
if: ${{ always() }}
- name: default build with -Og
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-Og -j$(nproc)
if: ${{ always() }}
- name: default build with -O0
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O0 -j$(nproc)
if: ${{ always() }}
- name: default build with -O1
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O1 -j$(nproc)
if: ${{ always() }}
- name: default build with -O2
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O2 -j$(nproc)
if: ${{ always() }}
- name: default build with -O3
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O3 -j$(nproc)
if: ${{ always() }}
- name: default build with -Ofast
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-Ofast -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -g
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-g ENABLE_SYSTEM=1 -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -Og
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-Og ENABLE_SYSTEM=1 -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -O0
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O0 ENABLE_SYSTEM=1 -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -O1
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O1 ENABLE_SYSTEM=1 -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -O2
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O2 ENABLE_SYSTEM=1 -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -O3
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-O3 ENABLE_SYSTEM=1 -j$(nproc)
if: ${{ always() }}
- name: default build for system emulation with -Ofast
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make distclean
make OPT_LEVEL=-Ofast ENABLE_SYSTEM=1 -j$(nproc)
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@RinHizakura RinHizakura Jan 25, 2025 •
edited
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Not sure if we need to take care of -Os or even just retain the presentative -O level only, otherwise the possible options may be too many. Will let @jserv decide this.

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@ChinYikMing ChinYikMing Jan 25, 2025 •
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One more -Oz can be the candidate. It is related to size just like -Os. Thus, not embracing them at first.

if: ${{ always() }}
- name: check + tests
env:
CC: ${{ steps.install_cc.outputs.cc }}
run: |
make clean
make distclean
make check -j$(nproc)
make tests -j$(nproc)
make misalign -j$(nproc)
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4 changes: 3 additions & 1 deletion Makefile
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Expand Up @@ -7,7 +7,9 @@ BIN := $(OUT)/rv32emu
CONFIG_FILE := $(OUT)/.config
-include $(CONFIG_FILE)

CFLAGS = -std=gnu99 -O2 -Wall -Wextra -Werror
OPT_LEVEL ?= -O2

CFLAGS = -std=gnu99 $(OPT_LEVEL) -Wall -Wextra -Werror
CFLAGS += -Wno-unused-label
CFLAGS += -include src/common.h -Isrc/

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2 changes: 1 addition & 1 deletion mk/system.mk
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Expand Up @@ -28,7 +28,7 @@ DEV_OBJS := $(patsubst $(DEV_SRC)/%.c, $(DEV_OUT)/%.o, $(wildcard $(DEV_SRC)/*.c
deps := $(DEV_OBJS:%.o=%.o.d)

OBJS_EXT += system.o
OBJS_EXT += dtc/libfdt/fdt.o dtc/libfdt/fdt_ro.o dtc/libfdt/fdt_rw.o
OBJS_EXT += dtc/libfdt/fdt.o dtc/libfdt/fdt_ro.o dtc/libfdt/fdt_rw.o dtc/libfdt/fdt_wip.o

# system target execution by using default dependencies
LINUX_IMAGE_DIR := linux-image
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