blob: a65be5dbfa42e7f1500d6d6f7e6fc1bc364667c2 [file] [log] [blame]
# This file is used to build the Bionic library with the Jam build
# tool. For info, see www.perforce.com/jam/jam.html
#
BIONIC_TOP ?= $(DOT) ;
DEBUG = 1 ;
# pattern used for automatic heade inclusion detection
HDRPATTERN = "^[ ]*#[ ]*include[ ]*[<\"]([^\">]*)[\">].*$" ;
# debugging support, simply define the DEBUG variable to activate verbose output
rule Debug
{
if $(DEBUG) {
Echo $(1) ;
}
}
# return all elements from $(1) that are not in $(2)
rule Filter list : filter
{
local result = ;
local item ;
for item in $(list) {
if ! $(item) in $(filter) {
result += $(item) ;
}
}
return $(result) ;
}
# reverse a list of elements
rule Reverse list
{
local result = ;
local item ;
for item in $(list) {
result = $(item) $(result) ;
}
return $(result) ;
}
# decompose a path into a list of elements
rule PathDecompose dir
{
local result ;
while $(dir:D)
{
if ! $(dir:BS) { # for rooted paths like "/foo"
break ;
}
result = $(dir:BS) $(result) ;
dir = $(dir:D) ;
}
result = $(dir) $(result) ;
return $(result) ;
}
# simply a file path, i.e. get rid of . or .. when possible
rule _PathSimplify dir
{
local result = ;
local dir2 d ;
dir = [ PathDecompose $(dir) ] ;
# get rid of any single dot
dir2 = ;
for d in $(dir) {
if $(d) = "." {
continue ;
}
dir2 += $(d) ;
}
# get rid of .. when possible
for d in $(dir2) {
if $(d) = ".." && $(result) {
result = $(result[2-]) ;
}
else
result = $(d) $(result) ;
}
# now invert the result
result = [ Reverse $(result) ] ;
if ! $(result) {
result = "." ;
}
return $(result:J="/") ;
}
rule PathSimplify dirs
{
local result ;
local d ;
for d in $(dirs) {
result += [ _PathSimplify $(d) ] ;
}
return $(result) ;
}
# retrieve list of subdirectories
rule ListSubDirs paths
{
local result = ;
local entry ;
for entry in [ Glob $(paths) : * ] {
if ! $(entry:S) {
result += $(entry) ;
}
}
return [ PathSimplify $(result) ] ;
}
# retrieve list of sources in a given directory
rule ListSources path
{
return [ Glob $(path) : *.S *.c ] ;
}
# find the prebuilt directory
#
if ! $(TOP) {
Echo "Please define TOP as the root of your device build tree" ;
Exit ;
}
Debug "OS is" $(OS) ;
Debug "CPU is" $(CPU) ;
if $(OS) = LINUX
{
PREBUILT = $(TOP)/prebuilt/Linux ;
}
else if $(OS) = MACOSX
{
switch $(CPU) {
case i386 : PREBUILT = $(TOP)/prebuilt/darwin-x86 ; break ;
case ppc : PREBUILT = $(TOP)/prebuilt/darwin-ppc ; break ;
case * : Echo "unsupported CPU" "$(CPU) !!" ;
Echo "Please contact digit@google.com for help" ;
Exit ;
}
}
else
{
Echo "Unsupported operating system" $(OS) ;
Echo "Please contact digit@google.com for help" ;
Exit ;
}
Debug "TOP is" $(TOP) ;
Debug "PREBUILT is" $(PREBUILT) ;
# check architectures and setup toolchain variables
#
SUPPORTED_ARCHS = x86 arm ;
ARCH ?= $(SUPPORTED_ARCHS) ;
if ! $(ARCH) in $(SUPPORTED_ARCHS) {
Echo "The variable ARCH contains an unsupported value, use one or more of these instead" ;
Echo "separated by spaces:" $(SUPPORTED_ARCHS) ;
Exit ;
}
x86_TOOLSET_PREFIX ?= "" ;
arm_TOOLSET_PREFIX ?= $(TOP)/prebuilt/Linux/toolchain-4.1.1/bin/arm-elf- ;
for arch in $(ARCH) {
CC_$(arch) = $($(arch)_TOOLSET_PREFIX)gcc ;
C++_$(arch) = $($(arch)_TOOLSET_PREFIX)g++ ;
AR_$(arch) = $($(arch)_TOOLSET_PREFIX)ar ;
}
# the list of arch-independent source subdirectories
BIONIC_SRC_SUBDIRS = string ;
BIONIC_x86_SUBDIRS = ;
BIONIC_arm_SUBDIRS = ;
CFLAGS = -O0 -g -W ;
# find sources in a given list of subdirectories
rule FindSources dirs
{
local dir ;
for dir in $(dirs)
{
local LOCAL_SRC NO_LOCAL_SRC ;
if [ Glob $(dir) : rules.jam ] {
include $(dir)/rules.jam ;
if $(LOCAL_SRC) {
_sources = $(LOCAL_SRC) ;
}
else {
_sources = [ Glob $(dir) : *.S *.c ] ;
_sources = $(_sources:BS) ;
}
if $(NO_LOCAL_SRC) {
_sources = [ Filter $(_sources) : $(NO_LOCAL_SRC) ] ;
}
sources += $(dir)/$(_sources) ;
}
else
sources += [ ListSources $(dir) ] ;
}
}
# Compile a given object file from a source
rule Compile object : source
{
Depends $(object) : $(source) ;
Depends bionic : $(object) ;
Clean clean : $(object) ;
MakeLocate $(object) : $(OUT) ;
CC on $(object) = $(CC_$(arch)) ;
CFLAGS on $(object) = $(CFLAGS) ;
INCLUDES on $(object) = $(INCLUDES) ;
DEFINES on $(object) = $(DEFINES) ;
HDRRULE on $(>) = HdrRule ;
HDRSCAN on $(>) = $(HDRPATTERN) ;
HDRSEARCH on $(>) = $(INCLUDES) ;
HDRGRIST on $(>) = $(HDRGRIST) ;
}
actions Compile
{
$(CC) -c -o $(1) $(CFLAGS) -I$(INCLUDES) -D$(DEFINES) $(2)
}
rule RmTemps
{
Temporary $(2) ;
}
actions quietly updated piecemeal together RmTemps
{
rm -f $(2)
}
actions Archive
{
$(AR) ru $(1) $(2)
}
rule Library library : objects
{
local obj ;
if ! $(library:S) {
library = $(library:S=.a) ;
}
library = $(library:G=<$(arch)>) ;
Depends all : $(library) ;
if ! $(library:D) {
MakeLocate $(library) $(library)($(objects:BS)) : $(OUT) ;
}
Depends $(library) : $(library)($(objects:BS)) ;
for obj in $(objects) {
Depends $(library)($(obj:BS)) : $(obj) ;
}
Clean clean : $(library) ;
AR on $(library) = $(AR_$(arch)) ;
Archive $(library) : $(objects) ;
RmTemps $(library) : $(objects) ;
}
rule ProcessDir
{
local CFLAGS = $(CFLAGS) ;
local DEFINES = $(DEFINES) ;
local INCLUDES = $(INCLUDES) ;
local local_rules = [ Glob $(1) : rules.jam ] ;
local source sources ;
if $(local_rules) {
local LOCAL_CFLAGS LOCAL_DEFINES LOCAL_INCLUDES LOCAL_SRC NO_LOCAL_SRC ;
include $(local_rules) ;
CFLAGS += $(LOCAL_CFLAGS) ;
DEFINES += $(LOCAL_DEFINES) ;
INCLUDES += $(LOCAL_INCLUDES) ;
if $(LOCAL_SRC) {
sources = $(LOCAL_SRC) ;
}
else {
sources = [ Glob $(1) : *.S *.c ] ;
sources = $(sources:BS) ;
}
if $(NO_LOCAL_SRC) {
sources = [ Filter $(sources) : $(NO_LOCAL_SRC) ] ;
}
sources = $(1)/$(sources) ;
}
else
sources = [ Glob $(1) : *.S *.c ] ;
for source in $(sources) {
local name = $(source:B) ;
if $(source:S) = ".S" {
# record the list of assembler sources
ASSEMBLER_SOURCES += $(name) ;
}
else if $(source:S) = ".c" && $(name) in $(ASSEMBLER_SOURCES) {
# skip C source file if corresponding assembler exists
continue ;
}
objname = <$(arch)>$(name).o ;
Compile $(objname) : $(source) ;
ALL_OBJECTS += $(objname) ;
}
}
rule ProcessDirs
{
local dir ;
for dir in $(1) {
ProcessDir $(dir) ;
}
}
INCLUDES_x86 = /usr/src/linux/include ;
INCLUDES_arm = ../kernel_headers
include/arch/arm
include/bits32
;
INCLUDES = include stdio string stdlib .
../msun/include
;
DEFINES = ANDROID_CHANGES
USE_LOCKS
REALLOC_ZERO_BYTES_FREES
_LIBC=1
SOFTFLOAT
FLOATING_POINT
NEED_PSELECT=1
ANDROID
;
CFLAGS_x86 = ;
for arch in $(ARCH)
{
local ARCH_DIR = $(BIONIC_TOP)/arch-$(arch) ;
local INCLUDES = $(INCLUDES_$(arch)) $(ARCH_DIR)/include $(INCLUDES) ;
local DEFINES = $(DEFINES_$(arch)) $(DEFINES) ARCH=$(arch) ;
local CFLAGS = $(CFLAGS) $(CFLAGS_$(arch)) ;
local OUT = out/$(arch) ;
local ASSEMBLER_SOURCES ALL_OBJECTS ;
ProcessDirs [ ListSubDirs $(ARCH_DIR) ] ;
ProcessDirs stdlib stdio unistd string tzcode inet ;
ProcessDirs [ ListSubDirs netbsd ] ;
ProcessDirs bionic ;
Library bionic : $(ALL_OBJECTS) ;
}
BIONIC_SEARCH = $(BIONIC_TOP)/include ;
# /HdrRule source : headers ;
#
# Arranges the proper dependencies when the file _source_ includes the files
# _headers_ through the #include C preprocessor directive
#
# this rule is not intendend to be called explicitely. It is called
# automatically during header scanning on sources handled by the @Object
# rule (e.g. sources in @Main or @Library rules)
#
rule HdrRule
{
# HdrRule source : headers ;
# N.B. This rule is called during binding, potentially after
# the fate of many targets has been determined, and must be
# used with caution: don't add dependencies to unrelated
# targets, and don't set variables on $(<).
# Tell Jam that anything depending on $(<) also depends on $(>),
# set SEARCH so Jam can find the headers, but then say we don't
# care if we can't actually find the headers (they may have been
# within ifdefs),
local s = $(>:G=$(HDRGRIST:E)) ;
Includes $(<) : $(s) ;
SEARCH on $(s) = $(HDRSEARCH) ;
NoCare $(s) ;
# Propagate on $(<) to $(>)
HDRSEARCH on $(s) = $(HDRSEARCH) ;
HDRSCAN on $(s) = $(HDRSCAN) ;
HDRRULE on $(s) = $(HDRRULE) ;
HDRGRIST on $(s) = $(HDRGRIST) ;
}