1# Makefile for the link-time HAL in <xtensa_tools_root>/xtensa-elf/src/hal 2 3# Copyright (c) 1999-2013 Tensilica Inc. 4# 5# Permission is hereby granted, free of charge, to any person obtaining 6# a copy of this software and associated documentation files (the 7# "Software"), to deal in the Software without restriction, including 8# without limitation the rights to use, copy, modify, merge, publish, 9# distribute, sublicense, and/or sell copies of the Software, and to 10# permit persons to whom the Software is furnished to do so, subject to 11# the following conditions: 12# 13# The above copyright notice and this permission notice shall be included 14# in all copies or substantial portions of the Software. 15# 16# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 19# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 20# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 21# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 22# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 24# 25# This makefile assumes GNU make features 26# 27# Invoke this Makefile like this: 28# cd <some build directory> 29# make -f <this file> XTENSA_TOOLS_ROOT=<path to Xtensa Tools> \ 30# XTENSA_ROOT=<path to Xtensa core package> \ 31# INSTLIBDIR=<path to installation directory> 32# 33 34ifndef XTENSA_TOOLS_ROOT 35$(error Please set XTENSA_TOOLS_ROOT to the path to Xtensa Tools) 36endif 37# NOTE: For now, we assume $(XTENSA_TOOLS_ROOT)/bin is on the PATH. 38ifndef XTENSA_ROOT 39$(error Please set XTENSA_ROOT to the path to your specific Xtensa core package) 40endif 41ifndef INSTLIBDIR 42$(error Please set INSTLIBDIR to the path where libraries and objects are installed) 43#INSTLIBDIR = $(call fixpath,$(XTENSA_ROOT)/xtensa-elf/arch/lib) 44endif 45 46# Select the specified Xtensa configuration: 47export XTENSA_SYSTEM = $(XTENSA_ROOT)/config 48export XTENSA_CORE = default 49 50include $(XTENSA_TOOLS_ROOT)/misc/defs.mk 51 52ifndef SRCDIR 53$(error Please set MAKEFILE_SRC to the path to this Makefile.src) 54endif 55 56CFLAGS = -O2 -g -mlongcalls 57 58# Uncomment this to compile deprecated (pre-T1020.2) beta HAL definitions: 59#CFLAGS += -DINCLUDE_DEPRECATED_HAL_CODE 60# Uncomment this to compile deprecated (pre-T1040.2) debug-support definitions: 61#CFLAGS += -DINCLUDE_DEPRECATED_HAL_DEBUG_CODE 62# Uncomment this to compile deprecated (pre-T1040.2) cache-support definitions: 63#CFLAGS += -DINCLUDE_DEPRECATED_HAL_CACHE_CODE 64 65 66# Compile parts of these files separately, to avoid unnecessarily large 67# objects without creating too many source files. 68# Files are split with "#[el]if defined(__SPLIT__<tag>)" lines 69# using normal C preprocessor syntax, where each <tag> must be unique and 70# consist of lowercase alphanumeric and underscore characters only (no dash etc). 71 72SPLIT_SOURCES = interrupts.c int_asm.S cache_asm.S state_asm.S state.c mem_ecc_parity.S \ 73 miscellaneous.S disass.c 74 75# Determine split object files to create, of form <srcbasename>--<tag>.o : 76SPLIT_OBJS := $(shell cd $(SRCDIR) && $(PERL) -ne '/__SPLIT__(\w+)/ and $$h{$$ARGV."--".$$1}++;\ 77 END {foreach (sort keys %h) {s/\..--/--/; print "$$_.o\n";}}' $(SPLIT_SOURCES)) 78# Make doesn't stop if $(shell ...) fails, so catch any such failure explicitly: 79ifeq ($(SPLIT_OBJS),) 80$(error Error invoking $(PERL) to split sources $(SPLIT_SOURCES)) 81endif 82 83# Call0 ABI means the xthal... and xthal..._nw functions are 84# identical. If we're building for Call0 ABI, omit the ..._nw 85# functions (except for xthal_get_intpending_nw, an interrupt handler 86# helper function for which there is no duplicate and which does not 87# obey _any_ calling conventions). 88 89CALL0_ABI :=$(filter __XTENSA_CALL0_ABI__, $(shell echo '' | $(CC_FOR_TARGET) --xtensa-system=$(XTENSA_SYSTEM) --xtensa-core=$(XTENSA_CORE) -E -dM - )) 90ifneq ($(CALL0_ABI),) 91SPLIT_OBJS := $(filter-out %_nw.o,$(SPLIT_OBJS)) 92SPLIT_OBJS := $(SPLIT_OBJS) int_asm--get_intpending_nw.o 93endif 94 95 96OBJS = \ 97 cache.o \ 98 syscache_asm.o \ 99 attribute.o \ 100 coherence.o \ 101 clock.o \ 102 debug.o \ 103 disass.o \ 104 debug_hndlr.o \ 105 memcopy.o \ 106 misc.o \ 107 miscellaneous.o \ 108 mmu.o \ 109 mp_asm.o \ 110 windowspill_asm.o \ 111 set_region_translate.o \ 112 $(SPLIT_OBJS) 113 114HALLIB = libhal.a 115 116 117.PHONY: all install clean 118 119all: $(HALLIB) 120 121$(HALLIB): $(OBJS) 122 123# For following rule, determine various things from $* (extended basename): 124SPLIT_SOURCE = $(filter $(patsubst %/,%,$(dir $(subst --,/,$*))).%,$(SPLIT_SOURCES)) 125SPLIT_TAG = $(notdir $(subst --,/,$*)) 126SPLIT_FLAGS = $(FLAGS_$(basename $(SPLIT_SOURCE))) 127 128$(SPLIT_OBJS): %.o: 129 $(CC_FOR_TARGET) -c $(CFLAGS) $(SPLIT_FLAGS) $(SRCDIR)/$(SPLIT_SOURCE) -D__SPLIT__$(SPLIT_TAG) -MMD -MF $*.d -o $@ 130 131%.o: %.S 132 $(CC_FOR_TARGET) -c $(CFLAGS) $(FLAGS_$*) $< -o $@ 133 134%.o: %.c 135 $(CC_FOR_TARGET) -c $(CFLAGS) $(FLAGS_$*) $< -o $@ 136 137%.a: 138 -$(RM) $@ 139 $(AR_FOR_TARGET) -rs $@ $^ 140 141 142install: all 143 $(MKPATH) $(INSTLIBDIR) 144 $(CP) $(HALLIB) $(INSTLIBDIR) 145 146clean: 147 -$(RM) $(OBJS) $(HALLIB) *.d 148 149# NOTE: Header file dependencies not specified! 150-include *.d 151 152
