[thirdparty/gcc.git] / libgo / goarch.sh

#!/bin/sh

# Copyright 2018 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

# Code in Makefile.am will invoke this script with two arguments.
# The first is a GOARCH value.  The second is a keyword.
# The script will print the value of that keyword for that GOARCH.
# Keywords:
# - bigendian: true or false
# - cachelinesize: the cache line size in bytes
#	(for performance only; it's not essential to get this right)
# - defaultphyspagesize: the default physical page size in bytes
#	(not currently used, but maybe some day)
# - family: the processor family, from ALLGOARCHFAMILY in configure.ac
# - hugepagesize: size of a huge page in bytes
#	(used only to decide when to use madvise with MADV_[NO]HUGEPAGE)
#	(set to 0 if there are no huge pages)
# - int64align: alignment of int64 type in bytes
# - maxalign: maximum alignment of values of Go types in bytes
# - minframesize: size of smallest possible function frame in bytes
#	(not currently used, may never be used)
# - pcquantum: minimum size of a single instruction in bytes
# - ptrsize: size of a pointer in bytes

if test $# -ne 2; then
    echo 1>&2 "usage: goarch <goarch> <keyword>"
    exit 1
fi

goarch=$1
keyword=$2

# Default values
bigendian=false
cachelinesize=64
defaultphyspagesize=4096
family=unknown
hugepagesize=0
int64align=8
maxalign=8
minframesize=0
pcquantum=1
ptrsize=8

case $goarch in
    386)
	family=I386
	hugepagesize="1 << 21"
	int64align=4
	maxalign=4
	ptrsize=4
	;;
    alpha)
	family=ALPHA
	defaultphyspagesize=8192
	pcquantum=4
	;;
    amd64)
	family=AMD64
	hugepagesize="1 << 21"
	;;
    amd64p32)
	family=AMD64
	hugepagesize="1 << 21"
	ptrsize=4
	;;
    arm | armbe)
	family=ARM
	cachelinesize=32
	minframesize=4
	pcquantum=4
	ptrsize=4
	case $goarch in
	    *be)
		bigendian=true
		;;
	esac
	;;
    arm64 | arm64be)
	family=ARM64
	cachelinesize=32
	defaultphyspagesize=65536
	minframesize=8
	pcquantum=4
	case $goarch in
	    *be)
		bigendian=true
		;;
	esac
	;;
    ia64)
	family=IA64
	cachelinesize=128
	defaultphyspagesize=65536
	;;
    m68k)
	family=M68K
	bigendian=true
	cachelinesize=16
	int64align=2
	maxalign=2
	pcquantum=4
	ptrsize=4
	;;
    mips | mipsle | mips64p32 | mips64p32le)
	family=MIPS
	bigendian=true
	cachelinesize=32
	defaultphyspagesize=16384
	minframesize=4
	pcquantum=4
	ptrsize=4
	case $goarch in
	    *le)
		bigendian=false
	        ;;
	esac
	;;
    mips64 | mips64le)
	family=MIPS64
	bigendian=true
	cachelinesize=32
	defaultphyspagesize=16384
	minframesize=8
	pcquantum=4
	case $goarch in
	    *le)
		bigendian=false
		;;
	esac
	;;
    nios2)
        family=NIOS2
        cachelinesize=32
        minframesize=16
        pcquantum=4
        ptrsize=4
        ;;
    ppc)
	family=PPC
	bigendian=true
	defaultphyspagesize=65536
	minframesize=32
	pcquantum=4
	ptrsize=4
	;;
    ppc64 | ppc64le)
	family=PPC64
	bigendian=true
	defaultphyspagesize=65536
	minframesize=32
	pcquantum=4
	case $goarch in
	    *le)
		bigendian=false
		;;
	esac
	;;
    riscv)
	family=RISCV
	pcquantum=2
	ptrsize=4
	;;
    riscv64)
	family=RISCV64
	pcquantum=2
	;;
    s390)
	family=S390
	bigendian=true
	cachelinesize=256
	minframesize=4
	pcquantum=2
	ptrsize=4
	;;
    s390x)
	family=S390X
	bigendian=true
	cachelinesize=256
	minframesize=8
	pcquantum=2
	;;
    sh | shbe)
	family=SH
	cachelinesize=16
	int64align=4
	minframesize=4
	pcquantum=2
	ptrsize=4
	case $goarch in
	    *be)
		bigendian=true
		;;
	esac
	;;
    sparc)
	family=SPARC
	bigendian=true
	defaultphyspagesize=8192
	pcquantum=4
	ptrsize=4
	;;
    sparc64)
	family=SPARC64
	bigendian=true
	defaultphyspagesize=8192
	pcquantum=4
	;;
    wasm)
	family=WASM
	defaultphyspagesize=65536
	;;
    *)
	echo 1>&2 "unrecognized goarch value \"$goarch\""
	exit 1
	;;
esac

if test "$family" = "unknown"; then
    echo 1>&2 "internal error: no family for goarch value \"$goarch\""
    exit 1
fi

case $keyword in
    bigendian)
	echo $bigendian
	;;
    cachelinesize)
	echo $cachelinesize
	;;
    defaultphyspagesize)
	echo $defaultphyspagesize
	;;
    family)
	echo $family
	;;
    hugepagesize)
	echo $hugepagesize
	;;
    int64align)
	echo $int64align
	;;
    maxalign)
	echo $maxalign
	;;
    minframesize)
	echo $minframesize
	;;
    pcquantum)
	echo $pcquantum
	;;
    ptrsize)
	echo $ptrsize
	;;
    *)
	echo 1>&2 "unrecognized keyword \"$keyword\""
	exit 1
	;;
esac

exit 0
Commit	Line	Data
a3cba53d	1	#!/bin/sh
	2
	3	# Copyright 2018 The Go Authors. All rights reserved.
	4	# Use of this source code is governed by a BSD-style
	5	# license that can be found in the LICENSE file.
	6
	7	# Code in Makefile.am will invoke this script with two arguments.
	8	# The first is a GOARCH value. The second is a keyword.
	9	# The script will print the value of that keyword for that GOARCH.
	10	# Keywords:
	11	# - bigendian: true or false
	12	# - cachelinesize: the cache line size in bytes
	13	# (for performance only; it's not essential to get this right)
	14	# - defaultphyspagesize: the default physical page size in bytes
	15	# (not currently used, but maybe some day)
	16	# - family: the processor family, from ALLGOARCHFAMILY in configure.ac
	17	# - hugepagesize: size of a huge page in bytes
	18	# (used only to decide when to use madvise with MADV_[NO]HUGEPAGE)
	19	# (set to 0 if there are no huge pages)
	20	# - int64align: alignment of int64 type in bytes
	21	# - maxalign: maximum alignment of values of Go types in bytes
	22	# - minframesize: size of smallest possible function frame in bytes
	23	# (not currently used, may never be used)
	24	# - pcquantum: minimum size of a single instruction in bytes
	25	# - ptrsize: size of a pointer in bytes
	26
	27	if test $# -ne 2; then
	28	echo 1>&2 "usage: goarch <goarch> <keyword>"
	29	exit 1
	30	fi
	31
	32	goarch=$1
	33	keyword=$2
	34
	35	# Default values
	36	bigendian=false
	37	cachelinesize=64
	38	defaultphyspagesize=4096
	39	family=unknown
	40	hugepagesize=0
	41	int64align=8
	42	maxalign=8
	43	minframesize=0
	44	pcquantum=1
	45	ptrsize=8
	46
	47	case $goarch in
	48	386)
	49	family=I386
	50	hugepagesize="1 << 21"
	51	int64align=4
	52	maxalign=4
	53	ptrsize=4
	54	;;
	55	alpha)
	56	family=ALPHA
	57	defaultphyspagesize=8192
	58	pcquantum=4
	59	;;
0caa25c9	60	amd64)
a3cba53d	61	family=AMD64
	62	hugepagesize="1 << 21"
	63	;;
0caa25c9	64	amd64p32)
	65	family=AMD64
	66	hugepagesize="1 << 21"
	67	ptrsize=4
	68	;;
a3cba53d	69	arm \| armbe)
	70	family=ARM
	71	cachelinesize=32
	72	minframesize=4
	73	pcquantum=4
	74	ptrsize=4
	75	case $goarch in
	76	*be)
	77	bigendian=true
	78	;;
	79	esac
	80	;;
	81	arm64 \| arm64be)
	82	family=ARM64
	83	cachelinesize=32
	84	defaultphyspagesize=65536
	85	minframesize=8
	86	pcquantum=4
	87	case $goarch in
	88	*be)
	89	bigendian=true
	90	;;
	91	esac
	92	;;
	93	ia64)
	94	family=IA64
	95	cachelinesize=128
	96	defaultphyspagesize=65536
	97	;;
	98	m68k)
	99	family=M68K
	100	bigendian=true
	101	cachelinesize=16
	102	int64align=2
	103	maxalign=2
	104	pcquantum=4
	105	ptrsize=4
	106	;;
	107	mips \| mipsle \| mips64p32 \| mips64p32le)
	108	family=MIPS
	109	bigendian=true
	110	cachelinesize=32
	111	defaultphyspagesize=16384
	112	minframesize=4
	113	pcquantum=4
	114	ptrsize=4
	115	case $goarch in
	116	*le)
	117	bigendian=false
	118	;;
	119	esac
	120	;;
	121	mips64 \| mips64le)
	122	family=MIPS64
	123	bigendian=true
	124	cachelinesize=32
	125	defaultphyspagesize=16384
	126	minframesize=8
	127	pcquantum=4
	128	case $goarch in
	129	*le)
	130	bigendian=false
	131	;;
	132	esac
133	;;
9eb30feb	134	nios2)
	135	family=NIOS2
	136	cachelinesize=32
	137	minframesize=16
	138	pcquantum=4
	139	ptrsize=4
	140	;;
a3cba53d	141	ppc)
	142	family=PPC
	143	bigendian=true
	144	defaultphyspagesize=65536
	145	minframesize=32
	146	pcquantum=4
	147	ptrsize=4
	148	;;
	149	ppc64 \| ppc64le)
	150	family=PPC64
	151	bigendian=true
	152	defaultphyspagesize=65536
	153	minframesize=32
	154	pcquantum=4
	155	case $goarch in
	156	*le)
	157	bigendian=false
	158	;;
	159	esac
	160	;;
9be94393	161	riscv)
	162	family=RISCV
	163	pcquantum=2
	164	ptrsize=4
	165	;;
364c6e61	166	riscv64)
	167	family=RISCV64
	168	pcquantum=2
	169	;;
a3cba53d	170	s390)
	171	family=S390
	172	bigendian=true
	173	cachelinesize=256
	174	minframesize=4
	175	pcquantum=2
	176	ptrsize=4
	177	;;
	178	s390x)
	179	family=S390X
	180	bigendian=true
	181	cachelinesize=256
	182	minframesize=8
	183	pcquantum=2
	184	;;
	185	sh \| shbe)
	186	family=SH
	187	cachelinesize=16
	188	int64align=4
	189	minframesize=4
	190	pcquantum=2
	191	ptrsize=4
	192	case $goarch in
	193	*be)
	194	bigendian=true
	195	;;
	196	esac
	197	;;
	198	sparc)
	199	family=SPARC
	200	bigendian=true
	201	defaultphyspagesize=8192
	202	pcquantum=4
	203	ptrsize=4
	204	;;
	205	sparc64)
	206	family=SPARC64
	207	bigendian=true
	208	defaultphyspagesize=8192
	209	pcquantum=4
	210	;;
9be94393	211	wasm)
	212	family=WASM
	213	defaultphyspagesize=65536
	214	;;
a3cba53d	215	*)
	216	echo 1>&2 "unrecognized goarch value \"$goarch\""
	217	exit 1
	218	;;
	219	esac
	220
	221	if test "$family" = "unknown"; then
	222	echo 1>&2 "internal error: no family for goarch value \"$goarch\""
	223	exit 1
	224	fi
	225
	226	case $keyword in
	227	bigendian)
	228	echo $bigendian
	229	;;
	230	cachelinesize)
	231	echo $cachelinesize
	232	;;
	233	defaultphyspagesize)
	234	echo $defaultphyspagesize
	235	;;
	236	family)
	237	echo $family
	238	;;
	239	hugepagesize)
	240	echo $hugepagesize
	241	;;
	242	int64align)
	243	echo $int64align
	244	;;
	245	maxalign)
	246	echo $maxalign
	247	;;
	248	minframesize)
	249	echo $minframesize
	250	;;
	251	pcquantum)
	252	echo $pcquantum
	253	;;
	254	ptrsize)
	255	echo $ptrsize
	256	;;
	257	*)
	258	echo 1>&2 "unrecognized keyword \"$keyword\""
	259	exit 1
	260	;;
	261	esac
	262
	263	exit 0