Add musl
This commit is contained in:
jaseg
parent
74507f4c36
commit
1f9390005f
6 changed files with 425 additions and 1 deletions
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@ -6,6 +6,7 @@ CMSIS_DEVICE_DIR ?= upstream/st-cmsis-f0
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CMSIS_CORE_DIR ?= upstream/cmsis-core
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HAL_DIR ?= upstream/st-hal-f0
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ST_USBD_DIR ?= upstream/st-usb-device
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MUSL_DIR ?= upstream/musl
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########################################################################################################################
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# Sources
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@ -20,6 +21,9 @@ C_SOURCES := src/main.c \
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src/usbd_hid.c \
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src/system_stm32f0xx.c
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C_SOURCES += $(MUSL_DIR)/src/string/memset.c \
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$(MUSL_DIR)/src/string/memcpy.c
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C_SOURCES += $(HAL_DIR)/Src/stm32f0xx_ll_usb.c \
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$(HAL_DIR)/Src/stm32f0xx_hal_adc.c \
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$(HAL_DIR)/Src/stm32f0xx_hal_adc_ex.c \
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@ -73,7 +77,8 @@ CFLAGS += -I$(BUILDDIR) \
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-I$(CMSIS_CORE_DIR) \
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-I$(HAL_DIR)/Inc \
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-I$(ST_USBD_DIR)/Core/Inc \
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-I$(ST_USBD_DIR)/Class/HID/Inc
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-I$(ST_USBD_DIR)/Class/HID/Inc \
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-Imusl_include_shims
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# for musl
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CFLAGS += -Dhidden=
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23
fw/musl_include_shims/bits/alltypes.h
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23
fw/musl_include_shims/bits/alltypes.h
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@ -0,0 +1,23 @@
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/* shim file for musl */
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#ifndef __MUSL_SHIM_BITS_ALLTYPES_H__
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#define __MUSL_SHIM_BITS_ALLTYPES_H__
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#define _REDIR_TIME64 1
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#define _Addr int
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#define _Int64 long long
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#define _Reg int
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#define __BYTE_ORDER 1234
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#define __LONG_MAX 0x7fffffffL
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#ifndef __cplusplus
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typedef unsigned wchar_t;
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#endif
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typedef float float_t;
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typedef double double_t;
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#endif /* __MUSL_SHIM_BITS_ALLTYPES_H__ */
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80
fw/musl_include_shims/endian.h
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80
fw/musl_include_shims/endian.h
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@ -0,0 +1,80 @@
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#ifndef _ENDIAN_H
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#define _ENDIAN_H
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#include <features.h>
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#define __NEED_uint16_t
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#define __NEED_uint32_t
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#define __NEED_uint64_t
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#include <bits/alltypes.h>
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#define __PDP_ENDIAN 3412
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#define BIG_ENDIAN __BIG_ENDIAN
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#define LITTLE_ENDIAN __LITTLE_ENDIAN
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#define PDP_ENDIAN __PDP_ENDIAN
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#define BYTE_ORDER __BYTE_ORDER
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static __inline uint16_t __bswap16(uint16_t __x)
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{
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return __x<<8 | __x>>8;
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}
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static __inline uint32_t __bswap32(uint32_t __x)
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{
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return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24;
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}
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static __inline uint64_t __bswap64(uint64_t __x)
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{
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return __bswap32(__x)+0ULL<<32 | __bswap32(__x>>32);
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}
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define htobe16(x) __bswap16(x)
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#define be16toh(x) __bswap16(x)
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#define htobe32(x) __bswap32(x)
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#define be32toh(x) __bswap32(x)
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#define htobe64(x) __bswap64(x)
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#define be64toh(x) __bswap64(x)
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#define htole16(x) (uint16_t)(x)
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#define le16toh(x) (uint16_t)(x)
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#define htole32(x) (uint32_t)(x)
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#define le32toh(x) (uint32_t)(x)
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#define htole64(x) (uint64_t)(x)
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#define le64toh(x) (uint64_t)(x)
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#else
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#define htobe16(x) (uint16_t)(x)
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#define be16toh(x) (uint16_t)(x)
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#define htobe32(x) (uint32_t)(x)
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#define be32toh(x) (uint32_t)(x)
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#define htobe64(x) (uint64_t)(x)
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#define be64toh(x) (uint64_t)(x)
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#define htole16(x) __bswap16(x)
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#define le16toh(x) __bswap16(x)
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#define htole32(x) __bswap32(x)
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#define le32toh(x) __bswap32(x)
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#define htole64(x) __bswap64(x)
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#define le64toh(x) __bswap64(x)
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#endif
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#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define betoh16(x) __bswap16(x)
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#define betoh32(x) __bswap32(x)
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#define betoh64(x) __bswap64(x)
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#define letoh16(x) (uint16_t)(x)
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#define letoh32(x) (uint32_t)(x)
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#define letoh64(x) (uint64_t)(x)
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#else
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#define betoh16(x) (uint16_t)(x)
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#define betoh32(x) (uint32_t)(x)
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#define betoh64(x) (uint64_t)(x)
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#define letoh16(x) __bswap16(x)
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#define letoh32(x) __bswap32(x)
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#define letoh64(x) __bswap64(x)
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#endif
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#endif
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#endif
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40
fw/musl_include_shims/features.h
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40
fw/musl_include_shims/features.h
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@ -0,0 +1,40 @@
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#ifndef _FEATURES_H
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#define _FEATURES_H
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#if defined(_ALL_SOURCE) && !defined(_GNU_SOURCE)
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#define _GNU_SOURCE 1
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#endif
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#if defined(_DEFAULT_SOURCE) && !defined(_BSD_SOURCE)
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#define _BSD_SOURCE 1
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#endif
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#if !defined(_POSIX_SOURCE) && !defined(_POSIX_C_SOURCE) \
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&& !defined(_XOPEN_SOURCE) && !defined(_GNU_SOURCE) \
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&& !defined(_BSD_SOURCE) && !defined(__STRICT_ANSI__)
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#define _BSD_SOURCE 1
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#define _XOPEN_SOURCE 700
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#endif
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#if __STDC_VERSION__ >= 199901L
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#define __restrict restrict
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#elif !defined(__GNUC__)
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#define __restrict
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#endif
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#if __STDC_VERSION__ >= 199901L || defined(__cplusplus)
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#define __inline inline
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#elif !defined(__GNUC__)
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#define __inline
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#endif
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#if __STDC_VERSION__ >= 201112L
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#elif defined(__GNUC__)
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#define _Noreturn __attribute__((__noreturn__))
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#else
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#define _Noreturn
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#endif
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#define __REDIR(x,y) __typeof__(x) x __asm__(#y)
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#endif
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6
fw/musl_include_shims/fp_arch.h
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6
fw/musl_include_shims/fp_arch.h
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@ -0,0 +1,6 @@
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#ifndef __MUSL_SHIM_FP_ARCH_H__
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#define __MUSL_SHIM_FP_ARCH_H__
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#define hidden
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#endif /* __MUSL_SHIM_FP_ARCH_H__ */
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270
fw/musl_include_shims/libm.h
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270
fw/musl_include_shims/libm.h
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@ -0,0 +1,270 @@
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#ifndef _LIBM_H
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#define _LIBM_H
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#include <stdint.h>
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#include <float.h>
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#include <math.h>
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#include <endian.h>
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#include "fp_arch.h"
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#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
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#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __LITTLE_ENDIAN
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union ldshape {
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long double f;
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struct {
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uint64_t m;
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uint16_t se;
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} i;
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};
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#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __BIG_ENDIAN
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/* This is the m68k variant of 80-bit long double, and this definition only works
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* on archs where the alignment requirement of uint64_t is <= 4. */
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union ldshape {
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long double f;
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struct {
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uint16_t se;
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uint16_t pad;
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uint64_t m;
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} i;
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};
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#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __LITTLE_ENDIAN
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union ldshape {
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long double f;
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struct {
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uint64_t lo;
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uint32_t mid;
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uint16_t top;
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uint16_t se;
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} i;
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struct {
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uint64_t lo;
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uint64_t hi;
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} i2;
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};
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#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __BIG_ENDIAN
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union ldshape {
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long double f;
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struct {
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uint16_t se;
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uint16_t top;
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uint32_t mid;
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uint64_t lo;
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} i;
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struct {
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uint64_t hi;
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uint64_t lo;
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} i2;
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};
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#else
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#error Unsupported long double representation
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#endif
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/* Support non-nearest rounding mode. */
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#define WANT_ROUNDING 1
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/* Support signaling NaNs. */
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#define WANT_SNAN 0
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#if WANT_SNAN
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#error SNaN is unsupported
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#else
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#define issignalingf_inline(x) 0
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#define issignaling_inline(x) 0
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#endif
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#ifndef TOINT_INTRINSICS
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#define TOINT_INTRINSICS 0
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#endif
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#if TOINT_INTRINSICS
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/* Round x to nearest int in all rounding modes, ties have to be rounded
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consistently with converttoint so the results match. If the result
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would be outside of [-2^31, 2^31-1] then the semantics is unspecified. */
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static double_t roundtoint(double_t);
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/* Convert x to nearest int in all rounding modes, ties have to be rounded
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consistently with roundtoint. If the result is not representible in an
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int32_t then the semantics is unspecified. */
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static int32_t converttoint(double_t);
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#endif
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/* Helps static branch prediction so hot path can be better optimized. */
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#ifdef __GNUC__
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#define predict_true(x) __builtin_expect(!!(x), 1)
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#define predict_false(x) __builtin_expect(x, 0)
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#else
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#define predict_true(x) (x)
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#define predict_false(x) (x)
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#endif
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/* Evaluate an expression as the specified type. With standard excess
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precision handling a type cast or assignment is enough (with
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-ffloat-store an assignment is required, in old compilers argument
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passing and return statement may not drop excess precision). */
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static inline float eval_as_float(float x)
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{
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float y = x;
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return y;
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}
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static inline double eval_as_double(double x)
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{
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double y = x;
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return y;
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}
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/* fp_barrier returns its input, but limits code transformations
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as if it had a side-effect (e.g. observable io) and returned
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an arbitrary value. */
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#ifndef fp_barrierf
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#define fp_barrierf fp_barrierf
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static inline float fp_barrierf(float x)
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{
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volatile float y = x;
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return y;
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}
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#endif
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#ifndef fp_barrier
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#define fp_barrier fp_barrier
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static inline double fp_barrier(double x)
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{
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volatile double y = x;
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return y;
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}
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#endif
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#ifndef fp_barrierl
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#define fp_barrierl fp_barrierl
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static inline long double fp_barrierl(long double x)
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{
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volatile long double y = x;
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return y;
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}
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#endif
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/* fp_force_eval ensures that the input value is computed when that's
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otherwise unused. To prevent the constant folding of the input
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expression, an additional fp_barrier may be needed or a compilation
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mode that does so (e.g. -frounding-math in gcc). Then it can be
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used to evaluate an expression for its fenv side-effects only. */
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#ifndef fp_force_evalf
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#define fp_force_evalf fp_force_evalf
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static inline void fp_force_evalf(float x)
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{
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volatile float y;
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y = x;
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}
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#endif
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#ifndef fp_force_eval
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#define fp_force_eval fp_force_eval
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static inline void fp_force_eval(double x)
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{
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volatile double y;
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y = x;
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}
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#endif
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#ifndef fp_force_evall
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#define fp_force_evall fp_force_evall
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static inline void fp_force_evall(long double x)
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{
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volatile long double y;
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y = x;
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}
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#endif
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#define FORCE_EVAL(x) do { \
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if (sizeof(x) == sizeof(float)) { \
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fp_force_evalf(x); \
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} else if (sizeof(x) == sizeof(double)) { \
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fp_force_eval(x); \
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} else { \
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fp_force_evall(x); \
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} \
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} while(0)
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#define asuint(f) ((union{float _f; uint32_t _i;}){f})._i
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#define asfloat(i) ((union{uint32_t _i; float _f;}){i})._f
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#define asuint64(f) ((union{double _f; uint64_t _i;}){f})._i
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#define asdouble(i) ((union{uint64_t _i; double _f;}){i})._f
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#define EXTRACT_WORDS(hi,lo,d) \
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do { \
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uint64_t __u = asuint64(d); \
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(hi) = __u >> 32; \
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(lo) = (uint32_t)__u; \
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} while (0)
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#define GET_HIGH_WORD(hi,d) \
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do { \
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(hi) = asuint64(d) >> 32; \
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} while (0)
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#define GET_LOW_WORD(lo,d) \
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do { \
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(lo) = (uint32_t)asuint64(d); \
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} while (0)
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#define INSERT_WORDS(d,hi,lo) \
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do { \
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(d) = asdouble(((uint64_t)(hi)<<32) | (uint32_t)(lo)); \
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} while (0)
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#define SET_HIGH_WORD(d,hi) \
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INSERT_WORDS(d, hi, (uint32_t)asuint64(d))
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#define SET_LOW_WORD(d,lo) \
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INSERT_WORDS(d, asuint64(d)>>32, lo)
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#define GET_FLOAT_WORD(w,d) \
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do { \
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(w) = asuint(d); \
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} while (0)
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#define SET_FLOAT_WORD(d,w) \
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do { \
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(d) = asfloat(w); \
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} while (0)
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hidden int __rem_pio2_large(double*,double*,int,int,int);
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hidden int __rem_pio2(double,double*);
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hidden double __sin(double,double,int);
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hidden double __cos(double,double);
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hidden double __tan(double,double,int);
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hidden double __expo2(double);
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hidden int __rem_pio2f(float,double*);
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hidden float __sindf(double);
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hidden float __cosdf(double);
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hidden float __tandf(double,int);
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hidden float __expo2f(float);
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hidden int __rem_pio2l(long double, long double *);
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hidden long double __sinl(long double, long double, int);
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hidden long double __cosl(long double, long double);
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hidden long double __tanl(long double, long double, int);
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hidden long double __polevll(long double, const long double *, int);
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hidden long double __p1evll(long double, const long double *, int);
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hidden double __lgamma_r(double, int *);
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hidden float __lgammaf_r(float, int *);
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/* error handling functions */
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hidden float __math_xflowf(uint32_t, float);
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hidden float __math_uflowf(uint32_t);
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hidden float __math_oflowf(uint32_t);
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hidden float __math_divzerof(uint32_t);
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hidden float __math_invalidf(float);
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hidden double __math_xflow(uint32_t, double);
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hidden double __math_uflow(uint32_t);
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hidden double __math_oflow(uint32_t);
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hidden double __math_divzero(uint32_t);
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hidden double __math_invalid(double);
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#endif
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