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Differential D8529

Full softfloat and hardfloat support for RISC-V
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Authored by br on Nov 15 2016, 4:57 PM.

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emaste

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rS308731: Add full softfloat and hardfloat support for RISC-V.

Summary

Tested by hand in SMP environment. Works stable. No testsuite available for RISC-V yet due to missing C plus plus

N.B. There is no floating point exception traps on RISC-V.
N.B. No flq, fsq (for quad access) instructions supported yet by GCC 6.1

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br updated this revision to Diff 22224.Nov 15 2016, 4:57 PM

br retitled this revision from to Full softfloat and hardfloat support for RISC-V.

br updated this object.

br edited the test plan for this revision. (Show Details)

br added a reviewer: emaste.

Herald added a subscriber: bdrewery. · View Herald TranscriptNov 15 2016, 4:57 PM

br updated this object.Nov 15 2016, 4:59 PM

br updated this object.Nov 15 2016, 5:05 PM

emaste added inline comments.Nov 16 2016, 2:35 AM

lib/libc/riscv/gen/_setjmp.S
63–80	Should you commit this (and related) independently?

fix comment; use ifndef SOFTFLOAT for setjmp

andrew added a subscriber: andrew.Nov 16 2016, 2:51 PM

andrew added inline comments.

lib/msun/riscv/fenv.h
77–78	You could move this to the `#else` below.
share/mk/src.opts.mk
239	I think this could be `... \|\| ${__TT} == "riscv"`

Closed by commit rS308731: Add full softfloat and hardfloat support for RISC-V. (authored by br). · Explain WhyNov 16 2016, 3:21 PM

This revision was automatically updated to reflect the committed changes.

br added inline comments.Nov 16 2016, 3:23 PM

share/mk/src.opts.mk
239	thanks Andrew, will know!

Revision Contents
Changeset List

Path

Size

Makefile

2 lines

Makefile.inc1

1 line

gnu/

usr.bin/

cc/

Makefile.tgt

2 lines

lib/

libc/

Makefile

3 lines

riscv/

Makefile.inc

4 lines

Symbol.map

18 lines

gen/

_setjmp.S

64 lines

flt_rounds.c

25 lines

setjmp.S

60 lines

softfloat/

milieu.h

48 lines

riscv-gcc.h

86 lines

softfloat.h

315 lines

softfloat/

Makefile.inc

3 lines

libcompiler_rt/

Makefile.inc

7 lines

msun/

riscv/

5 lines

21 lines

134 lines

11 lines

share/

mk/

4 lines

2 lines

6 lines

2 lines

sys/

conf/

options.riscv

2 lines

modules/

dtrace/

Makefile

4 lines

riscv/

conf/

GENERIC

2 lines

include/

38 lines

25 lines

5 lines

8 lines

riscv/

2 lines

82 lines

7 lines

167 lines

13 lines

4 lines

Diff 22255

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Makefile

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Makefile.inc1

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gnu/usr.bin/cc/Makefile.tgt

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lib/libc/Makefile

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lib/libc/riscv/Makefile.inc

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lib/libc/riscv/Symbol.map

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lib/libc/riscv/gen/_setjmp.S

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lib/libc/riscv/gen/flt_rounds.c

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lib/libc/riscv/gen/setjmp.S

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lib/libc/riscv/softfloat/milieu.h

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lib/libc/riscv/softfloat/riscv-gcc.h

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lib/libc/riscv/softfloat/softfloat.h

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lib/libc/softfloat/Makefile.inc

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lib/libcompiler_rt/Makefile.inc

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lib/msun/riscv/Makefile.inc

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lib/msun/riscv/Symbol.map

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lib/msun/riscv/fenv.h

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lib/msun/riscv/fenv.c

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share/mk/bsd.cpu.mk

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share/mk/local.meta.sys.mk

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share/mk/src.opts.mk

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share/mk/sys.mk

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sys/conf/options.riscv

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sys/modules/dtrace/dtrace/Makefile

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sys/riscv/conf/GENERIC

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sys/riscv/include/fpe.h

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sys/riscv/include/pcb.h

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sys/riscv/include/reg.h

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sys/riscv/include/riscvreg.h

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sys/riscv/riscv/genassym.c

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sys/riscv/riscv/machdep.c

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sys/riscv/riscv/mp_machdep.c

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sys/riscv/riscv/swtch.S

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sys/riscv/riscv/trap.c

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sys/riscv/riscv/vm_machdep.c

Full softfloat and hardfloat support for RISC-VClosedPublicActions

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Diff Detail

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Revision ContentsChangeset List

Diff 22255

Makefile

Makefile.inc1

gnu/usr.bin/cc/Makefile.tgt

lib/libc/Makefile

lib/libc/riscv/Makefile.inc

lib/libc/riscv/Symbol.map

lib/libc/riscv/gen/_setjmp.S

lib/libc/riscv/gen/flt_rounds.c

lib/libc/riscv/gen/setjmp.S

lib/libc/riscv/softfloat/milieu.h

lib/libc/riscv/softfloat/riscv-gcc.h

lib/libc/riscv/softfloat/softfloat.h

lib/libc/softfloat/Makefile.inc

lib/libcompiler_rt/Makefile.inc

lib/msun/riscv/Makefile.inc

lib/msun/riscv/Symbol.map

lib/msun/riscv/fenv.h

lib/msun/riscv/fenv.c

share/mk/bsd.cpu.mk

share/mk/local.meta.sys.mk

share/mk/src.opts.mk

share/mk/sys.mk

sys/conf/options.riscv

sys/modules/dtrace/dtrace/Makefile

sys/riscv/conf/GENERIC

sys/riscv/include/fpe.h

sys/riscv/include/pcb.h

sys/riscv/include/reg.h

sys/riscv/include/riscvreg.h

sys/riscv/riscv/genassym.c

sys/riscv/riscv/machdep.c

sys/riscv/riscv/mp_machdep.c

sys/riscv/riscv/swtch.S

sys/riscv/riscv/trap.c

sys/riscv/riscv/vm_machdep.c

Full softfloat and hardfloat support for RISC-V
ClosedPublic
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Revision Contents
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