Precompile headers

This cuts 'make install -j6' on my laptop from 170s to 134s.
This commit is contained in:
Eelco Dolstra 2019-11-06 16:54:18 +01:00
parent 39a2e166dd
commit 5ff4d77f55
No known key found for this signature in database
GPG key ID: 8170B4726D7198DE
6 changed files with 118 additions and 5 deletions

View file

@ -15,8 +15,8 @@ makefiles = \
tests/local.mk \ tests/local.mk \
tests/plugins/local.mk tests/plugins/local.mk
GLOBAL_CXXFLAGS += -g -Wall -include config.h
-include Makefile.config -include Makefile.config
include mk/lib.mk include mk/lib.mk
GLOBAL_CXXFLAGS += -g -Wall -include config.h -std=c++17

View file

@ -57,7 +57,6 @@ test "$localstatedir" = '${prefix}/var' && localstatedir=/nix/var
AC_PROG_CC AC_PROG_CC
AC_PROG_CXX AC_PROG_CXX
AC_PROG_CPP AC_PROG_CPP
AX_CXX_COMPILE_STDCXX_17([noext], [mandatory])
AC_CHECK_TOOL([AR], [ar]) AC_CHECK_TOOL([AR], [ar])

View file

@ -89,6 +89,7 @@ include mk/jars.mk
include mk/patterns.mk include mk/patterns.mk
include mk/templates.mk include mk/templates.mk
include mk/tests.mk include mk/tests.mk
include mk/precompiled-headers.mk
# Include all sub-Makefiles. # Include all sub-Makefiles.

View file

@ -1,10 +1,10 @@
$(buildprefix)%.o: %.cc $(buildprefix)%.o: %.cc
@mkdir -p "$(dir $@)" @mkdir -p "$(dir $@)"
$(trace-cxx) $(CXX) -o $@ -c $< $(GLOBAL_CXXFLAGS) $(GLOBAL_CXXFLAGS_PCH) $(CXXFLAGS) $($@_CXXFLAGS) -MMD -MF $(call filename-to-dep, $@) -MP $(trace-cxx) $(CXX) -o $@ -c $< $(GLOBAL_CXXFLAGS_PCH) $(GLOBAL_CXXFLAGS) $(CXXFLAGS) $($@_CXXFLAGS) -MMD -MF $(call filename-to-dep, $@) -MP
$(buildprefix)%.o: %.cpp $(buildprefix)%.o: %.cpp
@mkdir -p "$(dir $@)" @mkdir -p "$(dir $@)"
$(trace-cxx) $(CXX) -o $@ -c $< $(GLOBAL_CXXFLAGS) $(GLOBAL_CXXFLAGS_PCH) $(CXXFLAGS) $($@_CXXFLAGS) -MMD -MF $(call filename-to-dep, $@) -MP $(trace-cxx) $(CXX) -o $@ -c $< $(GLOBAL_CXXFLAGS_PCH) $(GLOBAL_CXXFLAGS) $(CXXFLAGS) $($@_CXXFLAGS) -MMD -MF $(call filename-to-dep, $@) -MP
$(buildprefix)%.o: %.c $(buildprefix)%.o: %.c
@mkdir -p "$(dir $@)" @mkdir -p "$(dir $@)"

42
mk/precompiled-headers.mk Normal file
View file

@ -0,0 +1,42 @@
PRECOMPILE_HEADERS ?= 1
print-var-help += \
echo " PRECOMPILE_HEADERS ($(PRECOMPILE_HEADERS)): Whether to use precompiled headers to speed up the build";
GCH = $(buildprefix)precompiled-headers.h.gch
$(GCH): precompiled-headers.h
@rm -f $@
@mkdir -p "$(dir $@)"
$(trace-gen) $(CXX) -x c++-header -o $@ $^ $(GLOBAL_CXXFLAGS)
PCH = $(buildprefix)precompiled-headers.h.pch
$(PCH): precompiled-headers.h
@rm -f $@
@mkdir -p "$(dir $@)"
$(trace-gen) $(CXX) -x c++-header -o $@ $^ $(GLOBAL_CXXFLAGS)
clean-files += $(GCH) $(PCH)
ifeq ($(PRECOMPILE_HEADERS), 1)
ifeq ($(CXX), g++)
GLOBAL_CXXFLAGS_PCH += -include $(buildprefix)precompiled-headers.h -Winvalid-pch
GLOBAL_ORDER_AFTER += $(GCH)
else ifeq ($(CXX), clang++)
GLOBAL_CXXFLAGS_PCH += -include-pch $(PCH) -Winvalid-pch
GLOBAL_ORDER_AFTER += $(PCH)
else
$(error Don't know how to precompile headers on $(CXX))
endif
endif

71
precompiled-headers.h Normal file
View file

@ -0,0 +1,71 @@
#include <algorithm>
#include <array>
#include <atomic>
#include <cassert>
#include <cctype>
#include <chrono>
#include <climits>
#include <cmath>
#include <condition_variable>
#include <cstddef>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <exception>
#include <functional>
#include <future>
#include <iostream>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <mutex>
#include <numeric>
#include <optional>
#include <queue>
#include <random>
#include <regex>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <string>
#include <thread>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#include <boost/format.hpp>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#include <net/if.h>
#include <netdb.h>
#include <netinet/ip.h>
#include <pwd.h>
#include <sched.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/param.h>
#include <sys/personality.h>
#include <sys/resource.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <termios.h>
#include <unistd.h>
#include "util.hh"
#include "args.hh"