gccgo: rkt doesn't build compile with gccgo, builds fine with gc

[glaubitz]

Trying to build rkt with gccgo fails with:

  GO           github.com/rkt/rkt/rkt
go build: when using gccgo toolchain, please pass linker flags using -gccgoflags, not -ldflags
# github.com/rkt/rkt/common
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/common/common.go:530:3: error: goarm is not a function; //go:linkname is only supported for functions
 //go:linkname goarm runtime.goarm
   ^
# github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s: Assembler messages:
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:6: Error: no such instruction: `text ·crc32sse(SB),7,$0'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:7: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:7: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:8: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:11: Error: no such instruction: `byte $0xF2'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:11: Error: no such instruction: `byte $0x41'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:11: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:12: Error: no such instruction: `byte $0x38'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:12: Error: no such instruction: `byte $0xf1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:12: Error: no such instruction: `byte $0x1a'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:14: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:18: Error: no such instruction: `text ·crc32sseAll(SB),7,$0'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:19: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:19: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:20: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:20: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:21: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:21: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:25: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:28: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:30: Error: too many memory references for `test'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:34: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:35: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:36: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:37: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:38: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:40: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:41: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:44: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:47: Error: no such instruction: `byte $0xF2'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:47: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:48: Error: no such instruction: `byte $0x38'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:48: Error: no such instruction: `byte $0xf1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:48: Error: no such instruction: `byte $0xd8'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:51: Error: no such instruction: `byte $0xF2'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:51: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:52: Error: no such instruction: `byte $0x38'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:52: Error: no such instruction: `byte $0xf1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:52: Error: no such instruction: `byte $0xd1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:55: Error: no such instruction: `byte $0xF2'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:55: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:56: Error: no such instruction: `byte $0x38'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:56: Error: no such instruction: `byte $0xf1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:56: Error: no such instruction: `byte $0xfe'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:57: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:58: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:59: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:61: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:62: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:65: Error: no such instruction: `byte $0xF2'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:65: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:66: Error: no such instruction: `byte $0x38'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:66: Error: no such instruction: `byte $0xf1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:66: Error: no such instruction: `byte $0xd8'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:67: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:71: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:76: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:79: Error: no such instruction: `byte $0xF2'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:79: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:80: Error: no such instruction: `byte $0x38'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:80: Error: no such instruction: `byte $0xf1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:80: Error: no such instruction: `byte $0xd8'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:82: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:85: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:94: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:98: Error: no such instruction: `text ·matchLenSSE4(SB),7,$0'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:99: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:99: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:100: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:100: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:101: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:101: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:102: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:103: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:108: Error: too many memory references for `test'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:112: Error: no such instruction: `movou (SI),X0'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:113: Error: no such instruction: `movou (DI),X1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:117: Error: no such instruction: `byte $0x66'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:117: Error: no such instruction: `byte $0x0f'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:117: Error: no such instruction: `byte $0x3a'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:118: Error: no such instruction: `byte $0x61'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:118: Error: no such instruction: `byte $0xc1'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:118: Error: no such instruction: `byte $0x18'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:131: Error: too many memory references for `test'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:133: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:134: Error: too many memory references for `add'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:146: Error: too many memory references for `sub'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:148: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:152: Error: too many memory references for `add'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:155: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:159: Error: no such instruction: `text ·histogram(SB),7,$0'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:160: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:160: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:161: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:161: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:162: Error: junk `(FP)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:162: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:163: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:166: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:169: Error: too many memory references for `movq'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:171: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:172: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:175: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:176: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:179: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:180: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:183: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:184: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:187: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:188: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:191: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:192: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:195: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:196: Error: junk `(R11*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:199: Error: junk `(R10*4)' after expression
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:208: Error: too many memory references for `xor'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:211: Error: too many memory references for `mov'
build-rkt-1.30.0+git/gopath/src/github.com/rkt/rkt/vendor/github.com/klauspost/compress/flate/crc32_amd64.s:212: Error: junk `(R10*4)' after expression
make: *** [makelib/build_go_bin.mk:57: /local_scratch/glaubitz/rkt/build-rkt-1.30.0+git/target/bin/rkt] Error 2

Tested with rkt from https://github.com/rkt/rkt, configured with --disable-tpm --disable-sdjournal

[ianlancetaylor]

Thanks. Programs that contain assembly code don't build with both gc and gccgo. That is because gc uses a non-standard assembly syntax based on the Plan 9 assembler, and also uses a non-standard calling convention. Assembler code written for gc won't work with gccgo.

Fortunately this code has a non-assembler version, so it should be possible to use that with the gccgo build tag. I'll look into that.

[ianlancetaylor]

The rkt repository appears to have been archived. I sent a fix which was never merged.