mirror of
https://codeberg.org/superseriousbusiness/gotosocial.git
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68 lines
2 KiB
Makefile
68 lines
2 KiB
Makefile
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# The development version of clang is distributed as the 'clang' binary,
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# while stable/released versions have a version number attached.
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# Pin the default clang to a stable version.
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CLANG ?= clang-11
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CFLAGS := -target bpf -O2 -g -Wall -Werror $(CFLAGS)
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# Obtain an absolute path to the directory of the Makefile.
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# Assume the Makefile is in the root of the repository.
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REPODIR := $(shell dirname $(realpath $(firstword $(MAKEFILE_LIST))))
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UIDGID := $(shell stat -c '%u:%g' ${REPODIR})
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IMAGE := $(shell cat ${REPODIR}/testdata/docker/IMAGE)
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VERSION := $(shell cat ${REPODIR}/testdata/docker/VERSION)
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# clang <8 doesn't tag relocs properly (STT_NOTYPE)
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# clang 9 is the first version emitting BTF
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TARGETS := \
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testdata/loader-clang-7 \
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testdata/loader-clang-9 \
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testdata/loader-clang-11 \
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testdata/invalid_map \
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testdata/raw_tracepoint \
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testdata/invalid_map_static \
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testdata/initialized_btf_map \
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testdata/strings \
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internal/btf/testdata/relocs
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.PHONY: all clean docker-all docker-shell
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.DEFAULT_TARGET = docker-all
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# Build all ELF binaries using a Dockerized LLVM toolchain.
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docker-all:
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docker run --rm --user "${UIDGID}" \
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-v "${REPODIR}":/ebpf -w /ebpf --env MAKEFLAGS \
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"${IMAGE}:${VERSION}" \
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make all
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# (debug) Drop the user into a shell inside the Docker container as root.
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docker-shell:
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docker run --rm -ti \
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-v "${REPODIR}":/ebpf -w /ebpf \
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"${IMAGE}:${VERSION}"
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clean:
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-$(RM) testdata/*.elf
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-$(RM) internal/btf/testdata/*.elf
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all: $(addsuffix -el.elf,$(TARGETS)) $(addsuffix -eb.elf,$(TARGETS))
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testdata/loader-%-el.elf: testdata/loader.c
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$* $(CFLAGS) -mlittle-endian -c $< -o $@
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testdata/loader-%-eb.elf: testdata/loader.c
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$* $(CFLAGS) -mbig-endian -c $< -o $@
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%-el.elf: %.c
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$(CLANG) $(CFLAGS) -mlittle-endian -c $< -o $@
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%-eb.elf : %.c
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$(CLANG) $(CFLAGS) -mbig-endian -c $< -o $@
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# Usage: make VMLINUX=/path/to/vmlinux vmlinux-btf
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.PHONY: vmlinux-btf
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vmlinux-btf: internal/btf/testdata/vmlinux-btf.gz
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internal/btf/testdata/vmlinux-btf.gz: $(VMLINUX)
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objcopy --dump-section .BTF=/dev/stdout "$<" /dev/null | gzip > "$@"
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