diff --git a/lib/libc/arm/gen/Makefile.inc b/lib/libc/arm/gen/Makefile.inc index cfc8a46575f3..9fb34288ac82 100644 --- a/lib/libc/arm/gen/Makefile.inc +++ b/lib/libc/arm/gen/Makefile.inc @@ -9,3 +9,8 @@ SRCS+= _ctx_start.S _setjmp.S _set_tp.c alloca.S fabs.c \ .if ${MK_ARM_EABI} == "no" SRCS+= divsi3.S .endif + +.if ${MACHINE_ARCH} == "armv6hf" +SRCS+= fpgetmask.c fpgetround.c fpgetsticky.c fpsetmask.c fpsetround.c \ + fpsetsticky.c +.endif diff --git a/lib/libc/arm/gen/fpgetmask.c b/lib/libc/arm/gen/fpgetmask.c new file mode 100644 index 000000000000..7c4d76fc403d --- /dev/null +++ b/lib/libc/arm/gen/fpgetmask.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2014 Andrew Turner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#ifdef __weak_alias +__weak_alias(fpgetmask,_fpgetmask) +#endif + +#define FP_X_MASK (FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP) + +fp_except_t +fpgetmask(void) +{ + fp_except mask; + + __asm __volatile("vmrs %0, fpscr" : "=&r"(mask)); + + return ((mask >> 8) & FP_X_MASK); +} + diff --git a/lib/libc/arm/gen/fpgetround.c b/lib/libc/arm/gen/fpgetround.c new file mode 100644 index 000000000000..ed9438865649 --- /dev/null +++ b/lib/libc/arm/gen/fpgetround.c @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2014 Andrew Turner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#ifdef __weak_alias +__weak_alias(fpgetround,_fpgetround) +#endif + +fp_rnd_t +fpgetround(void) +{ + uint32_t fpscr; + + __asm __volatile("vmrs %0, fpscr" : "=&r"(fpscr)); + + return ((fpscr >> 22) & 3); +} + diff --git a/lib/libc/arm/gen/fpgetsticky.c b/lib/libc/arm/gen/fpgetsticky.c new file mode 100644 index 000000000000..f1e0ba5bfdb2 --- /dev/null +++ b/lib/libc/arm/gen/fpgetsticky.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2014 Andrew Turner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#ifdef __weak_alias +__weak_alias(fpgetsticky,_fpgetsticky) +#endif + +#define FP_X_MASK (FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP) + +fp_except +fpgetsticky(void) +{ + fp_except old; + + __asm __volatile("vmrs %0, fpscr" : "=&r"(old)); + + return (old & FP_X_MASK); +} + diff --git a/lib/libc/arm/gen/fpsetmask.c b/lib/libc/arm/gen/fpsetmask.c new file mode 100644 index 000000000000..061c03385b54 --- /dev/null +++ b/lib/libc/arm/gen/fpsetmask.c @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2014 Andrew Turner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#ifdef __weak_alias +__weak_alias(fpsetmask,_fpsetmask) +#endif + +#define FP_X_MASK (FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP) + +fp_except_t +fpsetmask(fp_except_t mask) +{ + fp_except old, new; + + __asm __volatile("vmrs %0, fpscr" : "=&r"(old)); + mask = (mask & FP_X_MASK) << 8; + new = (old & ~(FP_X_MASK << 8)) | mask; + __asm __volatile("vmsr fpscr, %0" : : "r"(old)); + + return ((old >> 8) & FP_X_MASK); +} + diff --git a/lib/libc/arm/gen/fpsetround.c b/lib/libc/arm/gen/fpsetround.c new file mode 100644 index 000000000000..dc65a2e10057 --- /dev/null +++ b/lib/libc/arm/gen/fpsetround.c @@ -0,0 +1,50 @@ +/* + * Copyright (C) 2014 Andrew Turner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#ifdef __weak_alias +__weak_alias(fpsetround,_fpsetround) +#endif + +fp_rnd_t +fpsetround(fp_rnd_t rnd_dir) +{ + uint32_t old, new; + + __asm __volatile("vmrs %0, fpscr" : "=&r"(old)); + new = old & ~(3 << 22); + new |= rnd_dir << 22; + __asm __volatile("vmsr fpscr, %0" : : "r"(new)); + + return ((old >> 22) & 3); +} + diff --git a/lib/libc/arm/gen/fpsetsticky.c b/lib/libc/arm/gen/fpsetsticky.c new file mode 100644 index 000000000000..ddc15938417c --- /dev/null +++ b/lib/libc/arm/gen/fpsetsticky.c @@ -0,0 +1,52 @@ +/* + * Copyright (C) 2014 Andrew Turner + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + */ + +#include +__FBSDID("$FreeBSD$"); + +#include +#include + +#ifdef __weak_alias +__weak_alias(fpsetsticky,_fpsetsticky) +#endif + +#define FP_X_MASK (FP_X_INV | FP_X_DZ | FP_X_OFL | FP_X_UFL | FP_X_IMP) + +fp_except +fpsetsticky(fp_except except) +{ + fp_except old, new; + + __asm __volatile("vmrs %0, fpscr" : "=&r"(old)); + new = old & ~(FP_X_MASK); + new &= ~except; + __asm __volatile("vmsr fpscr, %0" : : "r"(new)); + + return (old & except); +} +