ARM flags GOARM

[denji]

• https://github.com/golang/go/wiki/GoArm

Supported architectures

Go supports the following ARM architectural families.

Architecture	Status	GOARM value	GOARCH value
ARMv4 and below	sorry, not supported	n/a	n/a
ARMv5	supported	GOARM=5	GOARCH=arm
ARMv6	supported	GOARM=6	GOARCH=arm
ARMv7	supported	GOARM=7	GOARCH=arm
ARMv8	supported	without GOARM	GOARCH=arm64

Starting from Go 1.1, the appropriate GOARM value will be chosen if you compile the program from source on the target machine. In cross compilation situations, it is recommended that you always set an appropriate GOARM value along with GOARCH.

Supported operating systems

• ARM on Linux. You must run an EABI kernel. These are generally known as armel for softfloat (compatible with ARMv5) or armhf for hardware floating point (ARMv6 and above).
• ARM on Darwin: ARMv7 is required.
• ARM on FreeBSD, OpenBSD, and NetBSD: ARMv6K or above is required.

---

arm

See https://golang.org/doc/install/source#environment

• GOARM=5: use software floating point; when CPU doesn't have VFP co-processor
• GOARM=6: use VFPv1 only; default if cross compiling; usually ARM11 or better cores (VFPv2 or better is also supported)
• GOARM=7: use VFPv3; usually Cortex-A cores

arm64

All ARMv8-A processors.

ppc64 (big endian)

"Big-endian 64-bit PowerPC (linux/ppc64) only requires the POWER5 architecture." (from
https://golang.org/doc/go1.7#ports)

ppc64le (little endian)

"The experimental port to Linux on little-endian 64-bit PowerPC (linux/ppc64le) now requires the POWER8 architecture or later." (from
https://golang.org/doc/go1.7#ports)

mips64 (big endian)

MIPS III or higher. Builder is using MIPS64r2.

mips64le (little endian)

MIPS III or higher in little endian mode. Builders are using Loongson 2E/2F.

s390x

z196+

mips (big endian) and mipsle (little endian)

MIPS32r1, with FPU or kernel FPU emulation

[caarlos0]

OK, so, here, we would have to add a goarm option together with goos and goarch, is that it?

[denji]

@caarlos0 That's right, with GOARCH=arm64 do not need to set a variable GOARM (only with GOARCH=arm)

[caarlos0]

hmm, can't we just assume GOARM=7 all the times GOARCH=arm ?

[denji]

• GOOS=<CROSS> GOARM=5 GOARCH=arm - use software floating point; when CPU doesn't have VFP co-processor
• GOOS=<CROSS> GOARM=6 GOARCH=arm - use VFPv1 only; default if cross compiling; usually ARM11 or better cores (VFPv2 or better is also supported)
• GOOS=<CROSS> GOARM=7 GOARCH=arm - use VFPv3; usually Cortex-A cores
• GOOS=<CROSS> GOARCH=arm64 - All ARMv8-A processors.

---

• GOOS=linux GOARCH=ppc64 - Big-endian 64-bit PowerPC (linux/ppc64) only requires the POWER5 architecture.
• GOOS=linux GOARCH=ppc64le - The experimental port to Linux on little-endian 64-bit PowerPC (linux/ppc64le) now requires the POWER8 architecture or later.

---

• GOOS=<CROSS> GOARCH=mips64 - MIPS III or higher. Builder is using MIPS64r2.
• GOOS=<CROSS> GOARCH=mips64le - MIPS III or higher in little endian mode. Builders are using Loongson 2E/2F.

---

• GOOS=<CROSS> GOARCH=mips - MIPS32r1 (big endian), with FPU or kernel FPU emulation.
• GOOS=<CROSS> GOARCH=mipsle - MIPS32r1 (little endian), with FPU or kernel FPU emulation.

---

• GOOS=<CROSS> GOARCH=s390x - z196+

[caarlos0]

OK, so, no.

So, we can do something like this:

build:
  goos:
    - linux
   goarch:
    - arm
    - arm64
   goarm:
    - 5
    - 6
    - 7

which would generate:

• linux-arm64
• linux-arm-v5
• linux-arm-v6
• linux-arm-v7

Does that work for you?

[caarlos0]

Check #213 please...

[caarlos0]

@denji can you check v0.14.0 please?

[github-actions]

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