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https://passt.top/passt
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b78e72da0b
Currently we configure clang-tidy with a very long command line spelled out in the Makefile (mostly a big list of lints to disable). Move it from here into a .clang-tidy configuration file, so that the config is accessible if clang-tidy is invoked in other ways (e.g. via clangd) as well. As a bonus this also means that we can move the bulky comments about why we're suppressing various tests inline with the relevant config lines. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
210 lines
7.4 KiB
Makefile
210 lines
7.4 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-or-later
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#
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# PASST - Plug A Simple Socket Transport
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# for qemu/UNIX domain socket mode
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#
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# PASTA - Pack A Subtle Tap Abstraction
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# for network namespace/tap device mode
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#
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# Copyright (c) 2021 Red Hat GmbH
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# Author: Stefano Brivio <sbrivio@redhat.com>
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VERSION ?= $(shell git describe --tags HEAD 2>/dev/null || echo "unknown\ version")
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# Does the target platform allow IPv4 connections to be handled via
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# the IPv6 socket API? (Linux does)
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DUAL_STACK_SOCKETS := 1
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RLIMIT_STACK_VAL := $(shell /bin/sh -c 'ulimit -s')
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ifeq ($(RLIMIT_STACK_VAL),unlimited)
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RLIMIT_STACK_VAL := 1024
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endif
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TARGET ?= $(shell $(CC) -dumpmachine)
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# Get 'uname -m'-like architecture description for target
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TARGET_ARCH := $(shell echo $(TARGET) | cut -f1 -d- | tr [A-Z] [a-z])
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TARGET_ARCH := $(shell echo $(TARGET_ARCH) | sed 's/powerpc/ppc/')
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AUDIT_ARCH := $(shell echo $(TARGET_ARCH) | tr [a-z] [A-Z] | sed 's/^ARM.*/ARM/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/I[456]86/I386/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPC64/PPC/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/PPCLE/PPC64LE/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/MIPS64EL/MIPSEL64/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/HPPA/PARISC/')
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AUDIT_ARCH := $(shell echo $(AUDIT_ARCH) | sed 's/SH4/SH/')
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# On some systems enabling optimization also enables source fortification,
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# automagically. Do not override it.
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FORTIFY_FLAG :=
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ifeq ($(shell $(CC) -O2 -dM -E - < /dev/null 2>&1 | grep ' _FORTIFY_SOURCE ' > /dev/null; echo $$?),1)
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FORTIFY_FLAG := -D_FORTIFY_SOURCE=2
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endif
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FLAGS := -Wall -Wextra -Wno-format-zero-length
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FLAGS += -pedantic -std=c11 -D_XOPEN_SOURCE=700 -D_GNU_SOURCE
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FLAGS += $(FORTIFY_FLAG) -O2 -pie -fPIE
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FLAGS += -DPAGE_SIZE=$(shell getconf PAGE_SIZE)
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FLAGS += -DNETNS_RUN_DIR=\"/run/netns\"
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FLAGS += -DPASST_AUDIT_ARCH=AUDIT_ARCH_$(AUDIT_ARCH)
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FLAGS += -DRLIMIT_STACK_VAL=$(RLIMIT_STACK_VAL)
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FLAGS += -DARCH=\"$(TARGET_ARCH)\"
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FLAGS += -DVERSION=\"$(VERSION)\"
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FLAGS += -DDUAL_STACK_SOCKETS=$(DUAL_STACK_SOCKETS)
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PASST_SRCS = arch.c arp.c checksum.c conf.c dhcp.c dhcpv6.c flow.c fwd.c \
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icmp.c igmp.c inany.c iov.c ip.c isolation.c lineread.c log.c mld.c \
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ndp.c netlink.c packet.c passt.c pasta.c pcap.c pif.c tap.c tcp.c \
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tcp_buf.c tcp_splice.c udp.c udp_flow.c util.c
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QRAP_SRCS = qrap.c
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SRCS = $(PASST_SRCS) $(QRAP_SRCS)
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MANPAGES = passt.1 pasta.1 qrap.1
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PASST_HEADERS = arch.h arp.h checksum.h conf.h dhcp.h dhcpv6.h flow.h fwd.h \
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flow_table.h icmp.h icmp_flow.h inany.h iov.h ip.h isolation.h \
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lineread.h log.h ndp.h netlink.h packet.h passt.h pasta.h pcap.h pif.h \
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siphash.h tap.h tcp.h tcp_buf.h tcp_conn.h tcp_internal.h tcp_splice.h \
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udp.h udp_flow.h util.h
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HEADERS = $(PASST_HEADERS) seccomp.h
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C := \#include <sys/random.h>\nint main(){int a=getrandom(0, 0, 0);}
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ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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FLAGS += -DHAS_GETRANDOM
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endif
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ifeq ($(shell :|$(CC) -fstack-protector-strong -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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FLAGS += -fstack-protector-strong
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endif
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C := \#define _GNU_SOURCE\n\#include <fcntl.h>\nint x = FALLOC_FL_COLLAPSE_RANGE;
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ifeq ($(shell printf "$(C)" | $(CC) -S -xc - -o - >/dev/null 2>&1; echo $$?),0)
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EXTRA_SYSCALLS += fallocate
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endif
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prefix ?= /usr/local
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exec_prefix ?= $(prefix)
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bindir ?= $(exec_prefix)/bin
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datarootdir ?= $(prefix)/share
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docdir ?= $(datarootdir)/doc/passt
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mandir ?= $(datarootdir)/man
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man1dir ?= $(mandir)/man1
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ifeq ($(TARGET_ARCH),x86_64)
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BIN := passt passt.avx2 pasta pasta.avx2 qrap
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else
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BIN := passt pasta qrap
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endif
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all: $(BIN) $(MANPAGES) docs
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static: FLAGS += -static -DGLIBC_NO_STATIC_NSS
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static: clean all
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seccomp.h: seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
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@ EXTRA_SYSCALLS="$(EXTRA_SYSCALLS)" ARCH="$(TARGET_ARCH)" CC="$(CC)" ./seccomp.sh $(PASST_SRCS) $(PASST_HEADERS)
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passt: $(PASST_SRCS) $(HEADERS)
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$(CC) $(FLAGS) $(CFLAGS) $(CPPFLAGS) $(PASST_SRCS) -o passt $(LDFLAGS)
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passt.avx2: FLAGS += -Ofast -mavx2 -ftree-vectorize -funroll-loops
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passt.avx2: $(PASST_SRCS) $(HEADERS)
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$(CC) $(filter-out -O2,$(FLAGS)) $(CFLAGS) $(CPPFLAGS) \
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$(PASST_SRCS) -o passt.avx2 $(LDFLAGS)
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passt.avx2: passt
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pasta.avx2 pasta.1 pasta: pasta%: passt%
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ln -sf $< $@
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qrap: $(QRAP_SRCS) passt.h
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$(CC) $(FLAGS) $(CFLAGS) $(CPPFLAGS) $(QRAP_SRCS) -o qrap $(LDFLAGS)
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valgrind: EXTRA_SYSCALLS += rt_sigprocmask rt_sigtimedwait rt_sigaction \
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rt_sigreturn getpid gettid kill clock_gettime mmap \
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mmap2 munmap open unlink gettimeofday futex
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valgrind: FLAGS += -g -DVALGRIND
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valgrind: all
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.PHONY: clean
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clean:
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$(RM) $(BIN) *~ *.o seccomp.h pasta.1 \
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passt.tar passt.tar.gz *.deb *.rpm \
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passt.pid README.plain.md
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install: $(BIN) $(MANPAGES) docs
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mkdir -p $(DESTDIR)$(bindir) $(DESTDIR)$(man1dir)
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cp -d $(BIN) $(DESTDIR)$(bindir)
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cp -d $(MANPAGES) $(DESTDIR)$(man1dir)
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mkdir -p $(DESTDIR)$(docdir)
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cp -d README.plain.md $(DESTDIR)$(docdir)/README.md
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cp -d doc/demo.sh $(DESTDIR)$(docdir)
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uninstall:
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$(RM) $(BIN:%=$(DESTDIR)$(prefix)/bin/%)
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$(RM) $(MANPAGES:%=$(DESTDIR)$(man1dir)/%)
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$(RM) $(DESTDIR)$(docdir)/README.md
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$(RM) $(DESTDIR)$(docdir)/demo.sh
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-rmdir $(DESTDIR)$(docdir)
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pkgs: static
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tar cf passt.tar -P --xform 's//\/usr\/bin\//' $(BIN)
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tar rf passt.tar -P --xform 's//\/usr\/share\/man\/man1\//' \
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$(MANPAGES)
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gzip passt.tar
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EMAIL="sbrivio@redhat.com" fakeroot alien --to-deb \
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--description="User-mode networking for VMs and namespaces" \
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-k --version=$(shell git rev-parse --short HEAD) \
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passt.tar.gz
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fakeroot alien --to-rpm --target=$(shell uname -m) \
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--description="User-mode networking for VMs and namespaces" \
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-k --version=g$(shell git rev-parse --short HEAD) passt.tar.gz
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# TODO: This hack makes a "plain" Markdown version of README.md that can be
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# reasonably shipped as documentation file, while the current README.md is
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# definitely intended for web browser consumption. It should probably work the
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# other way around: the web version should be obtained by adding HTML and
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# JavaScript portions to a plain Markdown, instead. However, cgit needs to use
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# a file in the git tree. Find a better way around this.
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docs: README.md
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@( \
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skip=0; \
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while read l; do \
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case $$l in \
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"## Demo") exit 0 ;; \
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"<!"*) ;; \
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"</"*) skip=1 ;; \
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"<"*) skip=2 ;; \
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esac; \
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\
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[ $$skip -eq 0 ] && echo "$$l"; \
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[ $$skip -eq 1 ] && skip=0; \
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done < README.md; \
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) > README.plain.md
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clang-tidy: $(PASST_SRCS) $(HEADERS)
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clang-tidy $(PASST_SRCS) -- $(filter-out -pie,$(FLAGS) $(CFLAGS) $(CPPFLAGS)) \
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-DCLANG_TIDY_58992
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SYSTEM_INCLUDES := /usr/include $(wildcard /usr/include/$(TARGET))
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ifeq ($(shell $(CC) -v 2>&1 | grep -c "gcc version"),1)
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VER := $(shell $(CC) -dumpversion)
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SYSTEM_INCLUDES += /usr/lib/gcc/$(TARGET)/$(VER)/include
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endif
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cppcheck: $(PASST_SRCS) $(HEADERS)
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if cppcheck --check-level=exhaustive /dev/null > /dev/null 2>&1; then \
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CPPCHECK_EXHAUSTIVE="--check-level=exhaustive"; \
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else \
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CPPCHECK_EXHAUSTIVE=; \
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fi; \
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cppcheck --std=c11 --error-exitcode=1 --enable=all --force \
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--inconclusive --library=posix --quiet \
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$${CPPCHECK_EXHAUSTIVE} \
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$(SYSTEM_INCLUDES:%=-I%) \
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$(SYSTEM_INCLUDES:%=--config-exclude=%) \
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$(SYSTEM_INCLUDES:%=--suppress=*:%/*) \
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$(SYSTEM_INCLUDES:%=--suppress=unmatchedSuppression:%/*) \
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--inline-suppr \
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--suppress=unusedStructMember \
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$(filter -D%,$(FLAGS) $(CFLAGS) $(CPPFLAGS)) \
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$(PASST_SRCS) $(HEADERS)
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