I'am trying to compile and run a 32 bit binary on a Cortex-A72 Armv8 using gcc compiler but i am not able to do it. I followed this prior thread Having trouble compiling 32-bit binary on 64-bit linux armv8 machine and i am realized too that the -m32 flag is not supported on ARMv8 linux machines.
Looking at https://gcc.gnu.org/onlinedocs/gcc/AArch64-Options.html i didn’t find anything interesting.
In according to https://linux.die.net/man/1/arm-linux-gnu-gcc the AArch64 gcc options are:
-mbig-endian -mlittle-endian -mgeneral-regs-only -mcmodel=tiny -mcmodel=small -mcmodel=large -mstrict-align -momit-leaf-frame-pointer -mno-omit-leaf-frame-pointer -mtls-dialect=desc -mtls-dialect=traditional -march=name -mcpu=name -mtune=name
So my question is: is it possible to compile and run a 32-bit binary on a 64-bit linux Armv8 machine ? and is so, how ?
Thank you.
EDIT: this https://jensd.be/1126/linux/cross-compiling-for-arm-or-aarch64-on-debian-or-ubuntu worked for me
You can download the AArch32 target with hard float (arm-none-linux-gnueabihf) toolchain from the Cortex-A toolchain Arm site.
The archive file name is gcc-arm-10.2-2020.11-aarch64-arm-none-linux-gnueabihf.tar.xz, in the AArch64 Linux hosted cross compilers section.
You may need to install additional packages on your Aarch64 system - search for How to run 32-bit (armhf) binaries on 64-bit (arm64) and your Linux distribution name.
I have tried compiling my simply program:
func main(){fmt.Printf("Hello")}
to MIPS architecture on my PC wit 64 bit Debian Linux according to documentation
https://golang.org/doc/install/source#environment
via using command
GOOS=linux GOARCH=mipsle go build
GOOS=linux GOARCH=mips go build
Every time I get the error:
runtime/internal/sys compile
unknown architecture "mipsle(mips)"
The interesting thing is, if a try using command:
GOOS=linux GOARCH=mipsle64 go build
The program was build.
Is it dependent on system OS on my PC ? How can I build a binary for MIPS or MIPSLE ?
Go 1.6 does not support MIPS or MIPSLE. 1.6 supports MIPS64(LE). 1.8 supports MIPS(LE).
From https://golang.org/doc/install/source:
amd64 (also known as x86-64)
A mature implementation.
386 (x86 or x86-32)
Comparable to the amd64 port.
arm (ARM)
Supports Linux, FreeBSD, NetBSD, OpenBSD and Darwin binaries. Less widely used than the other ports.
arm64 (AArch64)
Supports Linux and Darwin binaries. New in 1.5 and not as well exercised as other ports.
ppc64, ppc64le (64-bit PowerPC big- and little-endian)
Supports Linux binaries. New in 1.5 and not as well exercised as other ports.
mips, mipsle (32-bit MIPS big- and little-endian)
Supports Linux binaries. New in 1.8 and not as well exercised as other ports.
mips64, mips64le (64-bit MIPS big- and little-endian)
Supports Linux binaries. New in 1.6 and not as well exercised as other ports.
s390x (IBM System z)
Supports Linux binaries. New in 1.7 and not as well exercised as other ports.
If I get it right, GOOS is determined when compile the source code.
To better support multiple OS, I'm interested in what GOOS could be.
Of course, there might be infinite possibilities of it, since Go is opensourced. So what I really want is a "common list".
Known values are:
windows
linux
darwin or freebsd or unix? I know that at least one of them must exist.
Note that those values are defined in:
src/go/build/syslist.go, and
doc/install/source#environment.
With Go 1.5 (Q3 2015), GOARCH will become much more complete.
See commit 1eebb91 by Minux Ma (minux)
go/build: reserve GOARCH values for all common architectures
Whenever we introduce a new GOARCH, older Go releases won't recognize them and this causes trouble for both our users and us (we need to add unnecessary build tags).
Go 1.5 has introduced three new GOARCHes so far: arm64 ppc64 ppc64le, we can take the time to introduce GOARCHes for all common architectures that Go might support in the future to avoid the problem.
const goosList = "android darwin dragonfly freebsd linux nacl \
netbsd openbsd plan9 solaris windows "
const goarchList = "386 amd64 amd64p32 arm arm64 ppc64 ppc64le \
mips mipsle mips64 mips64le mips64p32 mips64p32le \ # (new)
ppc s390 s390x sparc sparc64 " # (new)
The list is still being review in Change 9644, with comments like:
I wouldn't bother with Itanium. It's basically a dead architecture.
Plus, it's so hard to write a compiler for it that I really can't see it happening except as a labor of love, and nobody loves the Itanium.
The official documentation now (GO 1.5+ Q3 2015) reflects that completed list.
Update 2018: as documented in Giorgos Oikonomou's answer, Go 1.7 (Q1 2016) has introduced the
go tool dist list command.
See commit c3ecded: it fixes issue 12270 opened in Q3 2015:
To easier write tooling for cross compiling it would be good to programmatically get the possible combinations of GOOS and GOARCH.
This was implemented in CL 19837
cmd/dist: introduce list subcommand to list all supported platforms
You can list in plain text, or in json:
> go tool dist list -json
[
{
"GOOS": "android",
"GOARCH": "386",
"CgoSupported": true
},
...
]
As Mark Bates tweeted:
Bonus: Column output properly formatted for display:
go tool dist list | column -c 75 | column -t
I think you're looking for this list of possible GOOS and GOARCH combinations, in this section:
http://golang.org/doc/install/source#environment
$GOOS and $GOARCH
The name of the target operating system and
compilation architecture. These default to the values of $GOHOSTOS and
$GOHOSTARCH respectively (described below).
Choices for $GOOS are darwin (Mac OS X 10.8 and above and iOS),
dragonfly, freebsd, linux, netbsd, openbsd, plan9, solaris and
windows. Choices for $GOARCH are amd64 (64-bit x86, the most mature
port), 386 (32-bit x86), arm (32-bit ARM), arm64 (64-bit ARM), ppc64le
(PowerPC 64-bit, little-endian), ppc64 (PowerPC 64-bit, big-endian),
mips64le (MIPS 64-bit, little-endian), and mips64 (MIPS 64-bit,
big-endian). mipsle (MIPS 32-bit, little-endian), and mips (MIPS
32-bit, big-endian).
The valid combinations of $GOOS and $GOARCH are:
$GOOS $GOARCH
android arm
darwin 386
darwin amd64
darwin arm
darwin arm64
dragonfly amd64
freebsd 386
freebsd amd64
freebsd arm
linux 386
linux amd64
linux arm
linux arm64
linux ppc64
linux ppc64le
linux mips
linux mipsle
linux mips64
linux mips64le
netbsd 386
netbsd amd64
netbsd arm
openbsd 386
openbsd amd64
openbsd arm
plan9 386
plan9 amd64
solaris amd64
windows 386
windows amd64
You can see the list of supported platform by running:
go tool dist list
and this will print(depending on the Go version):
android/386
android/amd64
android/arm
android/arm64
darwin/386
darwin/amd64
darwin/arm
darwin/arm64
dragonfly/amd64
freebsd/386
freebsd/amd64
freebsd/arm
linux/386
linux/amd64
linux/arm
linux/arm64
linux/mips
linux/mips64
linux/mips64le
linux/mipsle
linux/ppc64
linux/ppc64le
linux/s390x
nacl/386
nacl/amd64p32
nacl/arm
netbsd/386
netbsd/amd64
netbsd/arm
openbsd/386
openbsd/amd64
openbsd/arm
plan9/386
plan9/amd64
plan9/arm
solaris/amd64
windows/386
windows/amd64
And the official documentation for the tool:
https://godoc.org/github.com/golang/go/src/cmd/dist
To cross compile use:
GOOS=darwin GOARCH=386 go build main.go
I have Problem in 64-bit and 32-bit in mac. i am using mac10.6 version.it support 64-bit default. when i run my project in terminal using makefile ,how to run 32bit and 64 bit api's separately? why some Framework api available only in 32-bit(lower version)? please clear my doubt
Make sure you're using gcc version 4.0 or later, and add -arch flags for the architectures you want (e.g. -arch i386 or -arch x86_64 -arch ppc -arch ppc64 will compile for 32- and 63-bit Intel, and 32- and 64-bit PowerPC). Apple's 64-bit transition guide has a relevant section with details.
As for APIs: Apple has started to deprecate some APIs (mainly Carbon), and has not updated them to support 64-bit mode. Use Cocoa APIs instead. Again, Apple's 64-bit transition guide has a relevant section here, as well as a more detailed Carbon 64-bit guide.
Has anyone got the steps to compile darwin libraries on gcc for arm on ubuntu?
There is a site that provides patches for and arm darwin kernel.
Darwin on ARM develops and provides patches for the Apple Darwin-xnu kernel sources so that it can be cross-compiled to run on an ARM processor.
This ubuntu forum entry shows how to install the arm-linux-gcc cross compiler.
Put the two together and you should get what you asked for.
https://github.com/tpoechtrager/osxcross
step by step install it ref to https://enigma-dev.org/docs/wiki/index.php?title=CrossCompileLinuxOSX