include: add headers for armv8m

JIRA: RTOS-770
phoenix-rtos · Mar 1, 2024 · 0faa598 · 0faa598
1 parent a70b63d
commit 0faa598
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diff --git a/include/arch.h b/include/arch.h
@@ -1,7 +1,9 @@
 #if defined(__i386__) || defined(__x86_64__)
 #include <arch/ia32/arch.h>
-#elif defined(__ARM_ARCH_6M__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_8M_BASE__) || defined(__ARM_ARCH_8M_MAIN__)
+#elif defined(__ARM_ARCH_6M__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)
 #include <arch/armv7m/arch.h>
+#elif defined(__ARM_ARCH_8M_BASE__) || defined(__ARM_ARCH_8M_MAIN__)
+#include <arch/armv8m/arch.h>
 #elif defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_8A__) || defined(__ARM_ARCH_7__)
 #include <arch/armv7a/arch.h>
 #elif defined(__ARM_ARCH_4T__) || defined(__ARM_ARCH_5TE__) /* not currently supported, map to 7M for libgcc to compile */

diff --git a/include/arch/armv8m/arch.h b/include/arch/armv8m/arch.h
@@ -0,0 +1,70 @@
+/*
+ * Phoenix-RTOS
+ *
+ * libphoenix
+ *
+ * Architecture dependent part (arch/armv8m)
+ *
+ * Copyright 2024 Phoenix Systems
+ * Author: Damian Loewnau
+ *
+ * This file is part of Phoenix-RTOS.
+ *
+ * %LICENSE%
+ */
+
+#ifndef _LIBPHOENIX_ARCH_ARMV8M_ARCH_H_
+#define _LIBPHOENIX_ARCH_ARMV8M_ARCH_H_
+
+#define __ARCH_STDINT <arch/armv8m/stdint.h>
+#define __ARCH_LIMITS <arch/armv8m/limits.h>
+
+#define __MEMCPY
+#define __MEMCMP
+#define __MEMSET
+#define __STRLEN
+#define __STRNLEN
+#define __STRCMP
+#define __STRNCMP
+#define __STRCPY
+#define __STRNCPY
+#define __MEMMOVE
+
+#if __ARM_PCS_VFP || (__VFP_FP__ && !__SOFTFP__)
+#if __ARM_FP & 8
+
+#define __IEEE754_SQRT
+
+static inline double __ieee754_sqrt(double x)
+{
+	/* clang-format off */
+	__asm__ volatile ("vsqrt.f64 %P0, %P1" : "=w"(x) : "w"(x));
+	/* clang-format on */
+
+	return x;
+}
+#endif
+
+#define __IEEE754_SQRTF
+
+static inline float __ieee754_sqrtf(float x)
+{
+	/* clang-format off */
+	__asm__ volatile ("vsqrt.f32 %0, %1" : "=t"(x) : "t"(x));
+	/* clang-format on */
+
+	return x;
+}
+#endif
+
+#define _PAGE_SIZE 0x200
+#define SIZE_PAGE  _Pragma("GCC warning \"'SIZE_PAGE' is deprecated. Use _PAGE_SIZE from arch.h or PAGE_SIZE from limits.h (POSIX only)\"") _PAGE_SIZE
+
+/* FIXME provide libphoenix config to be able to
+ * selectively disable/enable features on per
+ * project basis.
+ * Disabled for now as TLS consumes too much
+ * memory to be advantageous on some targets. */
+// #define __LIBPHOENIX_ARCH_TLS_SUPPORTED
+
+#endif
diff --git a/include/arch/armv8m/limits.h b/include/arch/armv8m/limits.h
@@ -0,0 +1,66 @@
+/*
+ * Phoenix-RTOS
+ *
+ * libphoenix
+ *
+ * Architecture dependent part of limits (arch/armv8m)
+ *
+ * Copyright 2024 Phoenix Systems
+ * Author: Damian Loewnau
+ *
+ * This file is part of Phoenix-RTOS.
+ *
+ * %LICENSE%
+ */
+
+#ifndef _LIBPHOENIX_ARCH_ARMV8M_LIMITS_H_
+#define _LIBPHOENIX_ARCH_ARMV8M_LIMITS_H_
+
+#include "arch.h"
+
+#define SCHAR_MIN -128
+#define SCHAR_MAX 127
+#define UCHAR_MAX 255
+
+#define CHAR_MIN 0
+#define CHAR_MAX UCHAR_MAX
+#define CHAR_BIT 8
+
+#define MB_LEN_MAX 4
+
+#define SHRT_MIN  -32768
+#define SHRT_MAX  32767
+#define USHRT_MAX 65535
+
+#define INT_MIN  -2147483648
+#define INT_MAX  0x7fffffff
+#define UINT_MAX 0xffffffff
+
+#define LONG_MIN  INT_MIN
+#define LONG_MAX  INT_MAX
+#define ULONG_MAX UINT_MAX
+
+#define LONG_LONG_MIN  0x8000000000000000LL
+#define LONG_LONG_MAX  0x7fffffffffffffffLL
+#define ULONG_LONG_MAX 0xffffffffffffffffLL
+#define LLONG_MIN      LONG_LONG_MIN
+#define LLONG_MAX      LONG_LONG_MAX
+#define ULLONG_MAX     ULONG_LONG_MAX
+
+#define SSIZE_MAX INT_MAX
+
+#define PAGE_SIZE _PAGE_SIZE
+#define PAGESIZE  _PAGE_SIZE
+
+#define PTHREAD_STACK_MIN 256
+
+/*** POSIX-required defines ***/
+
+#define PATH_MAX    256  /* Maximum number of bytes the implementation will store as a pathname in a user-supplied buffer of unspecified size, including the terminating null character. MIN: 256 */
+#define NAME_MAX    64   /* Maximum number of bytes in a filename (not including the terminating null of a filename string). MIN: 14 */
+#define ARG_MAX     1500 /* Maximum length of argument to the exec functions including environment data. MIN: 4096 */
+#define SYMLOOP_MAX 8    /* Maximum number of symbolic links that can be reliably traversed in the resolution of a pathname in the absence of a loop. MIN: 8 */
+
+#define _POSIX2_RE_DUP_MAX 255
+
+#endif
diff --git a/include/arch/armv8m/stdint.h b/include/arch/armv8m/stdint.h
@@ -0,0 +1,125 @@
+/*
+ * Phoenix-RTOS
+ *
+ * libphoenix
+ *
+ * Architecture dependent part of stdint (arch/armv7m)
+ *
+ * Copyright 2024 Phoenix Systems
+ * Author: Damian Loewnau
+ *
+ * This file is part of Phoenix-RTOS.
+ *
+ * %LICENSE%
+ */
+
+#ifndef _LIBPHOENIX_ARCH_ARMV7M_STDINT_H_
+#define _LIBPHOENIX_ARCH_ARMV7M_STDINT_H_
+
+#include <phoenix/arch/armv7m/stdtypes.h>
+
+/* The following sections refer to ISO/IEC 9899:1999 */
+
+/* 7.18.1.3 Fastest minimum-width integer types */
+
+typedef __s32 int_fast8_t;
+typedef __s32 int_fast16_t;
+typedef __s32 int_fast32_t;
+typedef __s64 int_fast64_t;
+
+typedef __u32 uint_fast8_t;
+typedef __u32 uint_fast16_t;
+typedef __u32 uint_fast32_t;
+typedef __u64 uint_fast64_t;
+
+
+/* Define other fixed types along with defines/macros */
+
+#define _USE_STANDARD_TYPES_STDINT
+
+/* 7.18.1.4 Integer types capable of holding object pointers */
+
+typedef __s32 intptr_t;
+typedef __u32 uintptr_t;
+
+/* 7.18.1.5 Greatest-width integer types */
+
+typedef __s64 intmax_t;
+typedef __u64 uintmax_t;
+
+/* 7.18.2.3 Limits of fastest minimum-width integer types */
+
+#define INT_FAST8_MIN  INT32_MIN
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST32_MIN INT32_MIN
+#define INT_FAST64_MIN INT64_MIN
+
+#define INT_FAST8_MAX  INT32_MAX
+#define INT_FAST16_MAX INT32_MAX
+#define INT_FAST32_MAX INT32_MAX
+#define INT_FAST64_MAX INT64_MAX
+
+#define UINT_FAST8_MAX  UINT32_MAX
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+#define UINT_FAST64_MAX UINT64_MAX
+
+/* 7.18.2.4 Limits of integer types capable of holding object pointers */
+
+#define INTPTR_MIN  INT32_MIN
+#define INTPTR_MAX  INT32_MAX
+#define UINTPTR_MAX UINT32_MAX
+
+/* 7.18.2.5 Limits of greatest-width integer types */
+
+#define INTMAX_MIN  INT64_MIN
+#define INTMAX_MAX  INT64_MAX
+#define UINTMAX_MAX UINT64_MAX
+
+/* 7.18.3 Limits of other integer types */
+
+#define PTRDIFF_MIN INT32_MIN
+#define PTRDIFF_MAX INT32_MAX
+
+#define SIZE_MAX UINT32_MAX
+
+/* 7.18.4.1 Macros for minimum-width integer constants */
+
+#define INT8_C(c)  c
+#define INT16_C(c) c
+#define INT32_C(c) c
+#define INT64_C(c) c##LL
+
+#define UINT8_C(c)  c##U
+#define UINT16_C(c) c##U
+#define UINT32_C(c) c##U
+#define UINT64_C(c) c##ULL
+
+/* 7.18.4.2 Macros for greatest-width integer constants */
+
+#define INTMAX_C(c)  c##LL
+#define UINTMAX_C(c) c##ULL
+
+
+/* Additional definitions */
+
+#define _PRI_8   ""
+#define _PRI_16  ""
+#define _PRI_32  ""
+#define _PRI_64  "ll"
+#define _SCN_8   "hh"
+#define _SCN_16  "h"
+#define _SCN_32  ""
+#define _SCN_64  "ll"
+#define _PRI_PTR ""
+
+#define _SCN_LEAST8  _SCN_8
+#define _SCN_LEAST16 _SCN_16
+#define _SCN_LEAST32 _SCN_32
+#define _SCN_LEAST64 _SCN_64
+#define _SCN_FAST8   _SCN_32
+#define _SCN_FAST16  _SCN_32
+#define _SCN_FAST32  _SCN_32
+#define _SCN_FAST64  _SCN_64
+
+#endif