45 lines
1.4 KiB
Makefile
45 lines
1.4 KiB
Makefile
# Sample makefile to add version/compiler info via an extra
|
|
# object module linked to final binary.
|
|
#
|
|
CC=gcc
|
|
COMPILER_VER:=$(shell $(CC) --version)
|
|
CFLAGS=-fopenmp
|
|
LDFLAGS=
|
|
GIT_DESCRIBE:=$(shell git describe --abbrev=7 --dirty --always --tags --long)
|
|
GIT_AUTHOR:=$(shell git --no-pager log -1 --pretty=format:"%an <%ae>")
|
|
BUILD_DATE:=$(shell date +"%F %H:%M:%S")
|
|
|
|
.PHONY: all
|
|
all: hello-omp
|
|
|
|
versioninfo.txt:
|
|
@echo "@(#) Build date: ${BUILD_DATE}." >versioninfo.txt
|
|
@echo "@(#) Compiler version: ${COMPILER_VER}." >>versioninfo.txt
|
|
@echo "@(#) Compiler options: '${CFLAGS}'." >>versioninfo.txt
|
|
@echo "@(#) Linker options: '${LDFLAGS}'." >>versioninfo.txt
|
|
@echo "@(#) Git info: ${GIT_DESCRIBE}" >>versioninfo.txt
|
|
@echo "@(#) Commit author: ${GIT_AUTHOR}" >>versioninfo.txt
|
|
|
|
versioninfo.o: versioninfo.txt
|
|
objcopy --input binary \
|
|
--output elf64-x86-64 \
|
|
--binary-architecture i386 \
|
|
--add-section versioninfo=versioninfo.txt \
|
|
--set-section-flags versioninfo=contents,noload \
|
|
versioninfo.txt versioninfo.o
|
|
|
|
hello-omp: hello-omp.c Makefile versioninfo.o
|
|
gcc $(CFLAGS) $(LDFLAGS) -DVERSIONINFO="\"$(GIT_DESCRIBE)\"" \
|
|
hello-omp.c versioninfo.o -o hello-omp
|
|
|
|
.PHONY: test
|
|
test:
|
|
(export OMP_NUM_THREADS=2; ./hello-omp)
|
|
sleep 5
|
|
(export OMP_NUM_THREADS=24; ./hello-omp)
|
|
sleep 5
|
|
(export OMP_NUM_THREADS=500; ./hello-omp)
|
|
|
|
.PHONY: clean
|
|
clean:
|
|
rm -f hello-omp versioninfo.*
|