diff options
Diffstat (limited to 'ArmPkg/Library')
| -rw-r--r-- | ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.c | 283 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf | 83 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmSoftFloatLib/platform.h | 11 |
3 files changed, 358 insertions, 19 deletions
diff --git a/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.c b/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.c new file mode 100644 index 0000000000..42bed7700c --- /dev/null +++ b/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.c @@ -0,0 +1,283 @@ +/* + * Copyright (c) 2015 - 2019, Linaro Limited + * + * SPDX-License-Identifier: BSD-2-Clause-Patent + */ + +#include "platform.h" +#include <softfloat.h> + +/* + * On ARM32 EABI defines both a soft-float ABI and a hard-float ABI, + * hard-float is basically a super set of soft-float. Hard-float requires + * all the support routines provided for soft-float, but the compiler may + * choose to optimize to not use some of them. + * + * The AEABI functions uses soft-float calling convention even if the + * functions are compiled for hard-float. So where float and double would + * have been expected we use aeabi_float_t and aeabi_double_t respectively + * instead. + */ +typedef uint32_t aeabi_float_t; +typedef uint64_t aeabi_double_t; + +/* + * Helpers to convert between float32 and aeabi_float_t, and float64 and + * aeabi_double_t used by the AEABI functions below. + */ +static aeabi_float_t f32_to_f(float32_t val) +{ + return val.v; +} + +static float32_t f32_from_f(aeabi_float_t val) +{ + float32_t res; + + res.v = val; + + return res; +} + +static aeabi_double_t f64_to_d(float64_t val) +{ + return val.v; +} + +static float64_t f64_from_d(aeabi_double_t val) +{ + float64_t res; + + res.v = val; + + return res; +} + +/* + * From ARM Run-time ABI for ARM Architecture + * ARM IHI 0043D, current through ABI release 2.09 + * + * 4.1.2 The floating-point helper functions + */ + +/* + * Table 2, Standard aeabi_double_t precision floating-point arithmetic helper + * functions + */ + +aeabi_double_t __aeabi_dadd(aeabi_double_t a, aeabi_double_t b) +{ + return f64_to_d(f64_add(f64_from_d(a), f64_from_d(b))); +} + +aeabi_double_t __aeabi_ddiv(aeabi_double_t a, aeabi_double_t b) +{ + return f64_to_d(f64_div(f64_from_d(a), f64_from_d(b))); +} + +aeabi_double_t __aeabi_dmul(aeabi_double_t a, aeabi_double_t b) +{ + return f64_to_d(f64_mul(f64_from_d(a), f64_from_d(b))); +} + + +aeabi_double_t __aeabi_drsub(aeabi_double_t a, aeabi_double_t b) +{ + return f64_to_d(f64_sub(f64_from_d(b), f64_from_d(a))); +} + +aeabi_double_t __aeabi_dsub(aeabi_double_t a, aeabi_double_t b) +{ + return f64_to_d(f64_sub(f64_from_d(a), f64_from_d(b))); +} + +/* + * Table 3, double precision floating-point comparison helper functions + */ + +int __aeabi_dcmpeq(aeabi_double_t a, aeabi_double_t b) +{ + return f64_eq(f64_from_d(a), f64_from_d(b)); +} + +int __aeabi_dcmplt(aeabi_double_t a, aeabi_double_t b) +{ + return f64_lt(f64_from_d(a), f64_from_d(b)); +} + +int __aeabi_dcmple(aeabi_double_t a, aeabi_double_t b) +{ + return f64_le(f64_from_d(a), f64_from_d(b)); +} + +int __aeabi_dcmpge(aeabi_double_t a, aeabi_double_t b) +{ + return f64_le(f64_from_d(b), f64_from_d(a)); +} + +int __aeabi_dcmpgt(aeabi_double_t a, aeabi_double_t b) +{ + return f64_lt(f64_from_d(b), f64_from_d(a)); +} + +/* + * Table 4, Standard single precision floating-point arithmetic helper + * functions + */ + +aeabi_float_t __aeabi_fadd(aeabi_float_t a, aeabi_float_t b) +{ + return f32_to_f(f32_add(f32_from_f(a), f32_from_f(b))); +} + +aeabi_float_t __aeabi_fdiv(aeabi_float_t a, aeabi_float_t b) +{ + return f32_to_f(f32_div(f32_from_f(a), f32_from_f(b))); +} + +aeabi_float_t __aeabi_fmul(aeabi_float_t a, aeabi_float_t b) +{ + return f32_to_f(f32_mul(f32_from_f(a), f32_from_f(b))); +} + +aeabi_float_t __aeabi_frsub(aeabi_float_t a, aeabi_float_t b) +{ + return f32_to_f(f32_sub(f32_from_f(b), f32_from_f(a))); +} + +aeabi_float_t __aeabi_fsub(aeabi_float_t a, aeabi_float_t b) +{ + return f32_to_f(f32_sub(f32_from_f(a), f32_from_f(b))); +} + +/* + * Table 5, Standard single precision floating-point comparison helper + * functions + */ + +int __aeabi_fcmpeq(aeabi_float_t a, aeabi_float_t b) +{ + return f32_eq(f32_from_f(a), f32_from_f(b)); +} + +int __aeabi_fcmplt(aeabi_float_t a, aeabi_float_t b) +{ + return f32_lt(f32_from_f(a), f32_from_f(b)); +} + +int __aeabi_fcmple(aeabi_float_t a, aeabi_float_t b) +{ + return f32_le(f32_from_f(a), f32_from_f(b)); +} + +int __aeabi_fcmpge(aeabi_float_t a, aeabi_float_t b) +{ + return f32_le(f32_from_f(b), f32_from_f(a)); +} + +int __aeabi_fcmpgt(aeabi_float_t a, aeabi_float_t b) +{ + return f32_lt(f32_from_f(b), f32_from_f(a)); +} + +/* + * Table 6, Standard floating-point to integer conversions + */ + +int __aeabi_d2iz(aeabi_double_t a) +{ + return f64_to_i32_r_minMag(f64_from_d(a), false); +} + +unsigned __aeabi_d2uiz(aeabi_double_t a) +{ + return f64_to_ui32_r_minMag(f64_from_d(a), false); +} + +long long __aeabi_d2lz(aeabi_double_t a) +{ + return f64_to_i64_r_minMag(f64_from_d(a), false); +} + +unsigned long long __aeabi_d2ulz(aeabi_double_t a) +{ + return f64_to_ui64_r_minMag(f64_from_d(a), false); +} + +int __aeabi_f2iz(aeabi_float_t a) +{ + return f32_to_i32_r_minMag(f32_from_f(a), false); +} + +unsigned __aeabi_f2uiz(aeabi_float_t a) +{ + return f32_to_ui32_r_minMag(f32_from_f(a), false); +} + +long long __aeabi_f2lz(aeabi_float_t a) +{ + return f32_to_i64_r_minMag(f32_from_f(a), false); +} + +unsigned long long __aeabi_f2ulz(aeabi_float_t a) +{ + return f32_to_ui64_r_minMag(f32_from_f(a), false); +} + +/* + * Table 7, Standard conversions between floating types + */ + +aeabi_float_t __aeabi_d2f(aeabi_double_t a) +{ + return f32_to_f(f64_to_f32(f64_from_d(a))); +} + +aeabi_double_t __aeabi_f2d(aeabi_float_t a) +{ + return f64_to_d(f32_to_f64(f32_from_f(a))); +} + +/* + * Table 8, Standard integer to floating-point conversions + */ + +aeabi_double_t __aeabi_i2d(int a) +{ + return f64_to_d(i32_to_f64(a)); +} + +aeabi_double_t __aeabi_ui2d(unsigned a) +{ + return f64_to_d(ui32_to_f64(a)); +} + +aeabi_double_t __aeabi_l2d(long long a) +{ + return f64_to_d(i64_to_f64(a)); +} + +aeabi_double_t __aeabi_ul2d(unsigned long long a) +{ + return f64_to_d(ui64_to_f64(a)); +} + +aeabi_float_t __aeabi_i2f(int a) +{ + return f32_to_f(i32_to_f32(a)); +} + +aeabi_float_t __aeabi_ui2f(unsigned a) +{ + return f32_to_f(ui32_to_f32(a)); +} + +aeabi_float_t __aeabi_l2f(long long a) +{ + return f32_to_f(i64_to_f32(a)); +} + +aeabi_float_t __aeabi_ul2f(unsigned long long a) +{ + return f32_to_f(ui64_to_f32(a)); +} diff --git a/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf b/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf index cbb49f49ad..4d0c94df83 100644 --- a/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf +++ b/ArmPkg/Library/ArmSoftFloatLib/ArmSoftFloatLib.inf @@ -2,7 +2,7 @@ # ARM Software floating point Library.
#
# Copyright (c) 2014, ARM Ltd. All rights reserved.
-# Copyright (c) 2015, Linaro Ltd. All rights reserved.
+# Copyright (c) 2015 - 2019, Linaro Ltd. All rights reserved.
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -10,7 +10,7 @@ ##
[Defines]
- INF_VERSION = 0x00010005
+ INF_VERSION = 0x0001001B
BASE_NAME = ArmSoftFloatLib
FILE_GUID = a485f921-749e-41a0-9f91-62f09a38721c
MODULE_TYPE = BASE
@@ -22,26 +22,71 @@ #
[Sources]
- bits32/softfloat.c
- Arm/__aeabi_dcmpeq.c
- Arm/__aeabi_fcmpeq.c
- Arm/__aeabi_dcmpge.c
- Arm/__aeabi_fcmpge.c
- Arm/__aeabi_dcmpgt.c
- Arm/__aeabi_fcmpgt.c
- Arm/__aeabi_dcmple.c
- Arm/__aeabi_fcmple.c
- Arm/__aeabi_dcmplt.c
- Arm/__aeabi_fcmplt.c
- Arm/__aeabi_dcmpun.c
- Arm/__aeabi_fcmpun.c
+ berkeley-softfloat-3/source/ARM-VFPv2/s_propagateNaNF64UI.c
+ berkeley-softfloat-3/source/ARM-VFPv2/softfloat_raiseFlags.c
+ berkeley-softfloat-3/source/ARM-VFPv2/specialize.h
+ berkeley-softfloat-3/source/f32_add.c
+ berkeley-softfloat-3/source/f32_div.c
+ berkeley-softfloat-3/source/f32_eq.c
+ berkeley-softfloat-3/source/f32_le.c
+ berkeley-softfloat-3/source/f32_lt.c
+ berkeley-softfloat-3/source/f32_mul.c
+ berkeley-softfloat-3/source/f32_sub.c
+ berkeley-softfloat-3/source/f32_to_f64.c
+ berkeley-softfloat-3/source/f32_to_i32_r_minMag.c
+ berkeley-softfloat-3/source/f32_to_i64_r_minMag.c
+ berkeley-softfloat-3/source/f32_to_ui32_r_minMag.c
+ berkeley-softfloat-3/source/f32_to_ui64_r_minMag.c
+ berkeley-softfloat-3/source/f64_add.c
+ berkeley-softfloat-3/source/f64_div.c
+ berkeley-softfloat-3/source/f64_eq.c
+ berkeley-softfloat-3/source/f64_le.c
+ berkeley-softfloat-3/source/f64_lt.c
+ berkeley-softfloat-3/source/f64_mul.c
+ berkeley-softfloat-3/source/f64_sub.c
+ berkeley-softfloat-3/source/f64_to_f32.c
+ berkeley-softfloat-3/source/f64_to_i32_r_minMag.c
+ berkeley-softfloat-3/source/f64_to_i64_r_minMag.c
+ berkeley-softfloat-3/source/f64_to_ui32_r_minMag.c
+ berkeley-softfloat-3/source/f64_to_ui64_r_minMag.c
+ berkeley-softfloat-3/source/i32_to_f32.c
+ berkeley-softfloat-3/source/i32_to_f64.c
+ berkeley-softfloat-3/source/i64_to_f32.c
+ berkeley-softfloat-3/source/i64_to_f64.c
+ berkeley-softfloat-3/source/include/internals.h
+ berkeley-softfloat-3/source/include/opts-GCC.h
+ berkeley-softfloat-3/source/include/primitiveTypes.h
+ berkeley-softfloat-3/source/include/primitives.h
+ berkeley-softfloat-3/source/include/softfloat.h
+ berkeley-softfloat-3/source/include/softfloat_types.h
+ berkeley-softfloat-3/source/s_addMagsF32.c
+ berkeley-softfloat-3/source/s_addMagsF64.c
+ berkeley-softfloat-3/source/s_countLeadingZeros32.c
+ berkeley-softfloat-3/source/s_countLeadingZeros64.c
+ berkeley-softfloat-3/source/s_countLeadingZeros8.c
+ berkeley-softfloat-3/source/s_mul64To128.c
+ berkeley-softfloat-3/source/s_normRoundPackToF32.c
+ berkeley-softfloat-3/source/s_normRoundPackToF64.c
+ berkeley-softfloat-3/source/s_normSubnormalF32Sig.c
+ berkeley-softfloat-3/source/s_normSubnormalF64Sig.c
+ berkeley-softfloat-3/source/s_roundPackToF32.c
+ berkeley-softfloat-3/source/s_roundPackToF64.c
+ berkeley-softfloat-3/source/s_shiftRightJam32.c
+ berkeley-softfloat-3/source/s_shiftRightJam64.c
+ berkeley-softfloat-3/source/s_shortShiftRightJam64.c
+ berkeley-softfloat-3/source/s_subMagsF32.c
+ berkeley-softfloat-3/source/s_subMagsF64.c
+ berkeley-softfloat-3/source/softfloat_state.c
+ berkeley-softfloat-3/source/ui32_to_f32.c
+ berkeley-softfloat-3/source/ui32_to_f64.c
+ berkeley-softfloat-3/source/ui64_to_f32.c
+ berkeley-softfloat-3/source/ui64_to_f64.c
- Arm/__aeabi_cdcmp.asm | RVCT
- Arm/__aeabi_cfcmp.asm | RVCT
+ ArmSoftFloatLib.c
+ platform.h
[Packages]
MdePkg/MdePkg.dec
[BuildOptions]
- GCC:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC -Wno-enum-compare -fno-lto
- RVCT:*_*_*_CC_FLAGS = -DSOFTFLOAT_FOR_GCC
+ GCC:*_*_*_CC_FLAGS = -fno-lto -ffreestanding -Wno-unused-label
diff --git a/ArmPkg/Library/ArmSoftFloatLib/platform.h b/ArmPkg/Library/ArmSoftFloatLib/platform.h new file mode 100644 index 0000000000..31e843463a --- /dev/null +++ b/ArmPkg/Library/ArmSoftFloatLib/platform.h @@ -0,0 +1,11 @@ +/*
+ * Copyright (c) 2019, Linaro Limited
+ *
+ * SPDX-License-Identifier: BSD-2-Clause-Patent
+ */
+
+#define LITTLEENDIAN 1
+#define INLINE inline __attribute__((always_inline))
+#define SOFTFLOAT_BUILTIN_CLZ 1
+#define SOFTFLOAT_FAST_INT64
+#include "opts-GCC.h"
|