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o Add support for long double.

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o Add support for latest RISC-V GNU toolchain.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
This commit is contained in:
br 2016-11-03 13:06:17 +00:00
parent e8e5471317
commit 639bce9b04
8 changed files with 18 additions and 30 deletions
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7
lib/libcompiler_rt/Makefile.inc
View File

@ -123,8 +123,11 @@ SRCF+= udivti3
SRCF+= umoddi3
SRCF+= umodti3
# 128-bit quad precision long double support, only used on arm64
.if ${MACHINE_CPUARCH} == "aarch64"
#
# 128-bit quad precision long double support,
# only used on arm64 and riscv.
#
.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
SRCF+= addtf3
SRCF+= comparetf2
SRCF+= divtf3

5
lib/msun/riscv/Makefile.inc
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@ -1,6 +1,3 @@
# $FreeBSD$
# RISCVTODO: should be 113
# compilation problems: gcc generates bltuz instruction, which is not exists
LDBL_PREC = 53
LDBL_PREC = 113

2
share/man/man7/arch.7
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@ -66,7 +66,7 @@ On all supported architectures,
.It mips64hf Ta 8 Ta 8
.It powerpc Ta 4 Ta 8
.It powerpc64 Ta 8 Ta 8
.It riscv Ta 8 Ta
.It riscv Ta 8 Ta 16
.It sparc64 Ta 8 Ta 16
.El
.Ss Endianness and Char Signedness

6
share/mk/bsd.cpu.mk
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@ -156,7 +156,7 @@ _CPUCFLAGS = -march=${CPUTYPE}
_CPUCFLAGS = -march=${CPUTYPE:S/^mips//}
. endif
. elif ${MACHINE_CPUARCH} == "riscv"
_CPUCFLAGS = -msoft-float # -march="RV64I" # RISCVTODO
_CPUCFLAGS = -mno-float -march="IMAFD"
. elif ${MACHINE_ARCH} == "sparc64"
. if ${CPUTYPE} == "v9"
_CPUCFLAGS = -mcpu=v9
@ -337,8 +337,8 @@ CFLAGS += -mcpu=8540 -Wa,-me500 -mspe=yes -mabi=spe -mfloat-gprs=double
.endif
.if ${MACHINE_CPUARCH} == "riscv"
CFLAGS += -msoft-float
ACFLAGS += -msoft-float
CFLAGS += -mno-float
ACFLAGS += -mno-float
.endif
# NB: COPTFLAGS is handled in /usr/src/sys/conf/kern.pre.mk

7
share/mk/bsd.stand.mk
View File

@ -5,7 +5,12 @@
#
CFLAGS+= -ffreestanding -Wformat
CFLAGS+= ${CFLAGS_NO_SIMD} -msoft-float -D_STANDALONE
CFLAGS+= ${CFLAGS_NO_SIMD} -D_STANDALONE
.if ${MACHINE_CPUARCH} == "riscv"
CFLAGS+= -mno-float
.else
CFLAGS+= -msoft-float
.endif
.if ${MACHINE_CPUARCH} == "i386"
CFLAGS.gcc+= -mpreferred-stack-boundary=2

2
sys/modules/dtrace/dtrace/Makefile
View File

@ -60,7 +60,7 @@ assym.o: assym.s
.if ${MACHINE_CPUARCH} == "riscv"
assym.o: assym.s
${AS} -msoft-float -o assym.o assym.s
${AS} -mfloat-abi=soft -o assym.o assym.s
.endif
.include <bsd.kmod.mk>

2
sys/riscv/include/asm.h
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@ -47,7 +47,7 @@
#define _C_LABEL(x) x
#define ENTRY(sym) \
.text; .globl sym; .type sym,@function; .align 2; sym:
.text; .globl sym; .type sym,@function; .align 4; sym:
#define END(sym) .size sym, . - sym
#define EENTRY(sym) \

17
sys/riscv/include/float.h
View File

@ -76,22 +76,6 @@ __END_DECLS
#define DBL_HAS_SUBNORM 1
#endif /* __ISO_C_VISIBLE >= 2011 */
#define LDBL_MANT_DIG DBL_MANT_DIG
#define LDBL_EPSILON ((long double)DBL_EPSILON)
#define LDBL_DIG DBL_DIG
#define LDBL_MIN_EXP DBL_MIN_EXP
#define LDBL_MIN ((long double)DBL_MIN)
#define LDBL_MIN_10_EXP DBL_MIN_10_EXP
#define LDBL_MAX_EXP DBL_MAX_EXP
#define LDBL_MAX ((long double)DBL_MAX)
#define LDBL_MAX_10_EXP DBL_MAX_10_EXP
#if __ISO_C_VISIBLE >= 2011
#define LDBL_TRUE_MIN ((long double)DBL_TRUE_MIN)
#define LDBL_DECIMAL_DIG DBL_DECIMAL_DIG
#define LDBL_HAS_SUBNORM DBL_HAS_SUBNORM
#endif /* __ISO_C_VISIBLE >= 2011 */
#if 0 /* RISCVTODO */
#define LDBL_MANT_DIG 113
#define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L
#define LDBL_DIG 33
@ -106,6 +90,5 @@ __END_DECLS
#define LDBL_DECIMAL_DIG 36
#define LDBL_HAS_SUBNORM 1
#endif /* __ISO_C_VISIBLE >= 2011 */
#endif
#endif /* _MACHINE_FLOAT_H_ */