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Added compiler optimizations to gcc builds

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This commit is contained in:
Mark Pizzolato 2012-03-13 07:07:28 -07:00
parent 0abfa9306b
commit e61d00d539
1 changed files with 34 additions and 23 deletions
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57
makefile
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@ -19,11 +19,30 @@
# available at build time. Direct calls to libpcap can be enabled
# if GNU make is invoked with USE_NETWORK=1 on the command line.
#
# The default build will build compiler optimized binaries.
# If debugging is desired, then GNU make can be invoked with
# DEBUG=1 on the command line.
#
# Internal ROM support can be disabled if GNU make is invoked with
# DONT_USE_ROMS=1 on the command line.
#
# CC Command (and platform available options). (Poor man's autoconf)
#
# building the pdp11, or any vax simulator could use networking support
ifneq (,$(or $(findstring pdp11,$(MAKECMDGOALS)),$(findstring vax,$(MAKECMDGOALS)),$(findstring all,$(MAKECMDGOALS))))
NETWORK_USEFUL = true
ifneq (,$(findstring all,$(MAKECMDGOALS))$(word 2,$(MAKECMDGOALS)))
BUILD_MULTIPLE = (s)
else
BUILD_SINGLE := $(MAKECMDGOALS) $(BUILD_SINGLE)
endif
else
ifeq ($(MAKECMDGOALS),)
# default target is all
NETWORK_USEFUL = true
BUILD_MULTIPLE = (s)
endif
endif
ifeq ($(WIN32),) #*nix Environments (&& cygwin)
ifeq ($(GCC),)
GCC = gcc
@ -96,11 +115,6 @@ ifeq ($(WIN32),) #*nix Environments (&& cygwin)
endif
endif
$(info lib paths are: $(LIBPATH))
ifeq (cygwin,$(OSTYPE))
# gcc optimization seems to be broken in Cygwin's gcc 4.5.3
# (vax780 won't boot VMS 4.7 unless -O2 removed)
#OS_CCDEFS += -O2
endif
find_lib = $(strip $(firstword $(foreach dir,$(strip $(LIBPATH)),$(wildcard $(dir)/lib$(1).$(LIBEXT)))))
find_include = $(strip $(firstword $(foreach dir,$(strip $(INCPATH)),$(wildcard $(dir)/$(1).h))))
ifneq (,$(call find_lib,m))
@ -130,21 +144,6 @@ ifeq ($(WIN32),) #*nix Environments (&& cygwin)
endif
endif
endif
# building the pdp11, or any vax simulator could use networking support
ifneq (,$(or $(findstring pdp11,$(MAKECMDGOALS)),$(findstring vax,$(MAKECMDGOALS)),$(findstring all,$(MAKECMDGOALS))))
NETWORK_USEFUL = true
ifneq (,$(findstring all,$(MAKECMDGOALS))$(word 2,$(MAKECMDGOALS)))
BUILD_MULTIPLE = (s)
else
BUILD_SINGLE := $(MAKECMDGOALS) $(BUILD_SINGLE)
endif
else
ifeq ($(MAKECMDGOALS),)
# default target is all
NETWORK_USEFUL = true
BUILD_MULTIPLE = (s)
endif
endif
ifneq (,$(NETWORK_USEFUL))
ifneq (,$(call find_include,pcap))
ifneq (,$(call find_lib,$(PCAPLIB)))
@ -267,7 +266,7 @@ else
NETWORK_OPT = -DUSE_SHARED
endif
endif
OS_CCDEFS = -fms-extensions -O2 $(PTHREADS_CCDEFS) $(PCAP_CCDEFS)
OS_CCDEFS = -fms-extensions $(PTHREADS_CCDEFS) $(PCAP_CCDEFS)
OS_LDFLAGS = -lm -lwsock32 -lwinmm $(PTHREADS_LDFLAGS)
EXE = .exe
ifneq (binexists,$(shell if exist BIN echo binexists))
@ -277,6 +276,18 @@ else
NETWORK_OPT = -DUSE_SHARED
endif
endif
ifneq ($(DEBUG),)
CFLAGS_G = -g -ggdb -g3
CFLAGS_O = -O0
BUILD_FEATURES = debugging support
else
CFLAGS_O = -O2 -flto -finline-functions -fgcse-after-reload -fpredictive-commoning -fipa-cp-clone -fno-unsafe-loop-optimizations -fno-strict-overflow
LDFLAGS_O = -flto -fwhole-program
BUILD_FEATURES = compiler optimizations and no debugging support
endif
$(info ***)
$(info *** $(BUILD_SINGLE)Simulator$(BUILD_MULTIPLE) being built with $(BUILD_FEATURES).)
$(info ***)
ifneq ($(DONT_USE_ROMS),)
ROMS_OPT = -DDONT_USE_INTERNAL_ROM
else
@ -286,8 +297,8 @@ ifneq ($(DONT_USE_READER_THREAD),)
NETWORK_OPT += -DDONT_USE_READER_THREAD
endif
CC = $(GCC) -std=c99 -U__STRICT_ANSI__ -g -I . $(OS_CCDEFS) $(ROMS_OPT)
LDFLAGS = $(OS_LDFLAGS) $(NETWORK_LDFLAGS)
CC = $(GCC) -std=c99 -U__STRICT_ANSI__ $(CFLAGS_G) $(CFLAGS_O) -I . $(OS_CCDEFS) $(ROMS_OPT)
LDFLAGS = $(OS_LDFLAGS) $(NETWORK_LDFLAGS) $(LDFLAGS_O)
#
# Common Libraries