libc: Introduce files from SCC
Taken from http://git.simple-cc.org/scc/ from the following commit: 67508ad14af314cea2229783d3c084f28c41daf0 Permission has been granted from the author to use them under the license BSD-3-Clause instead of ISC. Change-Id: I65c0ce3ab60c49d34a57533af12a74bd7bde88e5 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
This commit is contained in:
Antonio Nino Diaz
parent
2c5aca6eaa
commit
27989a8e34
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@ -2982,32 +2982,13 @@ contains those C library definitions required by the local implementation. If
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more functionality is required, the needed library functions will need to be
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added to the local implementation.
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Versions of `FreeBSD`_ headers can be found in ``include/lib/stdlib``. Some of
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these headers have been cut down in order to simplify the implementation. In
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order to minimize changes to the header files, the `FreeBSD`_ layout has been
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maintained. The generic C library definitions can be found in
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``include/lib/stdlib`` with more system and machine specific declarations in
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``include/lib/stdlib/sys`` and ``include/lib/stdlib/machine``.
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Some C headers have been obtained from `FreeBSD`_ and `SCC`_, while others have
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been written specifically for TF-A. Fome implementation files have been obtained
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from `FreeBSD`_, others have been written specifically for TF-A as well. The
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files can be found in ``include/lib/libc`` and ``lib/libc``.
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The local C library implementations can be found in ``lib/stdlib``. In order to
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extend the C library these files may need to be modified. It is recommended to
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use a release version of `FreeBSD`_ as a starting point.
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The C library header files in the `FreeBSD`_ source tree are located in the
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``include`` and ``sys/sys`` directories. `FreeBSD`_ machine specific definitions
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can be found in the ``sys/<machine-type>`` directories. These files define things
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like 'the size of a pointer' and 'the range of an integer'. Since an AArch64
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port for `FreeBSD`_ does not yet exist, the machine specific definitions are
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based on existing machine types with similar properties (for example SPARC64).
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Where possible, C library function implementations were taken from `FreeBSD`_
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as found in the ``lib/libc`` directory.
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A copy of the `FreeBSD`_ sources can be downloaded with ``git``.
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::
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git clone git://github.com/freebsd/freebsd.git -b origin/release/9.2.0
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SCC can be found in `http://www.simple-cc.org/`_. A copy of the `FreeBSD`_
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sources can be obtained from `http://github.com/freebsd/freebsd`_.
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Storage abstraction layer
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-------------------------
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@ -3082,3 +3063,4 @@ amount of open resources per driver.
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.. _Arm Generic Interrupt Controller version 2.0 (GICv2): http://infocenter.arm.com/help/topic/com.arm.doc.ihi0048b/index.html
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.. _3.0 (GICv3): http://infocenter.arm.com/help/topic/com.arm.doc.ihi0069b/index.html
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.. _FreeBSD: http://www.freebsd.org
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.. _SCC: http://www.simple-cc.org/
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@ -0,0 +1,15 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _LIMITS_H
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#define _LIMITS_H
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#include <arch/limits.h>
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#define CHAR_BIT 8
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#define MB_LEN_MAX 1
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#endif
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@ -0,0 +1,16 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _STDARG_H
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#define _STDARG_H
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#define va_list __builtin_va_list
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#define va_start(ap, last) __builtin_va_start(ap, last)
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#define va_end(ap) __builtin_va_end(ap)
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#define va_copy(to, from) __builtin_va_copy(to, from)
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#define va_arg(to, type) __builtin_va_arg(to, type)
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#endif
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@ -0,0 +1,18 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _STDDEF_H
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#define _STDDEF_H
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#include <arch/stddef.h>
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#ifndef NULL
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#define NULL ((void *) 0)
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#endif
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#define offsetof(st, m) ((size_t)&(((st *)0)->m))
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#endif
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@ -0,0 +1,12 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _STDINT_H_
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#define _STDINT_H_
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#include <arch/stdint.h>
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#endif
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@ -0,0 +1,133 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _STDIO_H
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#define _STDIO_H
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#include <arch/stdio.h>
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#ifndef FOPEN_MAX
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#define FOPEN_MAX 12
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#endif
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#ifndef NULL
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#define NULL ((void *) 0)
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#endif
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#define EOF -1
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#define SEEK_CUR 0
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#define SEEK_END 1
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#define SEEK_SET 2
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#define _IOWRITE (1 << 0)
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#define _IOREAD (1 << 1)
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#define _IORW (1 << 2)
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#define _IOEOF (1 << 3)
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#define _IOERR (1 << 4)
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#define _IOSTRG (1 << 5)
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#define _IOTXT (1 << 6)
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#define _IOFBF (1 << 7)
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#define _IOLBF (1 << 8)
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#define _IONBF (1 << 9)
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#define _IOALLOC (1 <<10)
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typedef struct {
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int fd; /* file descriptor */
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unsigned char *buf; /* pointer to i/o buffer */
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unsigned char *rp; /* read pointer */
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unsigned char *wp; /* write pointer */
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unsigned char *lp; /* write pointer used when line-buffering */
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size_t len; /* actual length of buffer */
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unsigned short flags;
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unsigned char unbuf[1]; /* tiny buffer for unbuffered io */
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} FILE;
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extern FILE __iob[FOPEN_MAX];
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#define stdin (&__iob[0])
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#define stdout (&__iob[1])
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#define stderr (&__iob[2])
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extern int remove(const char *filename);
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extern int rename(const char *old, const char *new);
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extern FILE *tmpfile(void);
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extern char *tmpnam(char *s);
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extern int fclose(FILE *fp);
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extern int fflush(FILE *fp);
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extern FILE *fopen(const char * restrict fname, const char * restrict mode);
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extern FILE *freopen(const char * restrict fname, const char * restrict mode,
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FILE * restrict fp);
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extern void setbuf(FILE * restrict fp, char * restrict buf);
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extern int setvbuf(FILE * restrict fp,
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char * restrict buf, int mode, size_t size);
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extern int fprintf(FILE * restrict fp, const char * restrict fmt, ...);
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extern int fscanf(FILE * restrict fp, const char * restrict fmt, ...);
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extern int printf(const char * restrict fmt, ...);
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extern int scanf(const char * restrict fmt, ...);
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extern int snprintf(char * restrict s,
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size_t n, const char * restrict fmt, ...);
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extern int sprintf(char * restrict s, const char * restrict fmt, ...);
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extern int sscanf(const char * restrict s, const char * restrict fmt, ...);
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#ifdef _STDARG_H
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extern int vfprintf(FILE * restrict fp,
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const char * restrict fmt, va_list arg);
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extern int vfscanf(FILE * restrict fp,
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const char * restrict fmt, va_list arg);
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extern int vprintf(const char * restrict fmt, va_list arg);
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extern int vscanf(const char * restrict fmt, va_list arg);
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extern int vsnprintf(char * restrict s, size_t n, const char * restrict fmt,
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va_list arg);
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extern int vsprintf(char * restrict s,
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const char * restrict fmt, va_list arg);
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extern int vsscanf(const char * restrict s,
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const char * restrict fmt, va_list arg);
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#endif
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extern int fgetc(FILE *fp);
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extern char *fgets(char * restrict s, int n, FILE * restrict fp);
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extern int fputc(int c, FILE *fp);
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extern int fputs(const char * restrict s, FILE * restrict fp);
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extern int getc(FILE *fp);
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extern int getchar(void);
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extern char *gets(char *s);
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extern int putc(int c, FILE *fp);
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extern int putchar(int c);
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extern int puts(const char *s);
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extern int ungetc(int c, FILE *fp);
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extern size_t fread(void * restrict ptr, size_t size, size_t nmemb,
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FILE * restrict fp);
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extern size_t fwrite(const void * restrict ptr, size_t size, size_t nmemb,
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FILE * restrict fp);
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extern int fgetpos(FILE * restrict fp, fpos_t * restrict pos);
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extern int fseek(FILE *fp, long int offset, int whence);
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extern int fsetpos(FILE *fp, const fpos_t *pos);
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extern long int ftell(FILE *fp);
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extern void rewind(FILE *fp);
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extern void clearerr(FILE *fp);
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extern int feof(FILE *fp);
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extern int ferror(FILE *fp);
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extern void perror(const char *s);
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extern int __getc(FILE *fp);
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extern int __putc(int, FILE *fp);
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#ifdef __USE_MACROS
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#ifdef __UNIX_FILES
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#define getc(fp) ((fp)->rp >= (fp)->wp ? __getc(fp) : *(fp)->rp++)
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#define putc(c, fp) ((fp)->wp >= (fp)->rp ? __putc(c,fp) : (*(fp)->wp++ = c))
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#endif
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#define ferror(fp) ((fp)->flags & _IOERR)
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#define feof(fp) ((fp)->flags & _IOEOF)
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#define clearerr(fp) (void) ((fp)->flags &= ~(_IOERR|_IOEOF))
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#define getchar() getc(stdin)
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#define putchar(c) putc((c), stdout)
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#define setbuf(fp, b) (void) setvbuf(fp, b, b ? _IOFBF:_IONBF, BUFSIZ)
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#endif
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#endif
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@ -0,0 +1,85 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _STDLIB_H
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#define _STDLIB_H
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#include <arch/stdlib.h>
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#ifndef NULL
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#define NULL ((void *) 0)
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#endif
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#define _ATEXIT_MAX 32
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#define MB_CUR_MAX 1
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#define RAND_MAX 32767
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typedef struct {
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int quot, rem;
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} div_t;
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typedef struct {
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long quot, rem;
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} ldiv_t;
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typedef struct {
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long long quot, rem;
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} lldiv_t;
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extern double atof(const char *nptr);
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extern int atoi(const char *nptr);
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extern long int atol(const char *nptr);
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extern long long int atoll(const char *nptr);
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extern double strtod(const char * restrict nptr, char ** restrict endptr);
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extern float strtof(const char * restrict nptr, char ** restrict endptr);
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extern long double strtold(const char * restrict nptr, char ** restrict endptr);
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extern long int strtol(const char * restrict nptr, char ** restrict endptr, int base);
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extern long long int strtoll(const char * restrict nptr, char ** restrict endptr,
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int base);
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extern unsigned long int strtoul(const char * restrict nptr, char ** restrict endptr,
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int base);
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extern unsigned long long int strtoull(const char * restrict nptr,
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char ** restrict endptr, int base);
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extern int rand(void);
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extern void srand(unsigned int seed);
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extern void *calloc(size_t nmemb, size_t size);
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extern void free(void *ptr);
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extern void *malloc(size_t size);
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extern void *realloc(void *ptr, size_t size);
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extern void abort(void);
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extern int atexit(void (*func)(void));
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extern void exit(int status);
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extern void _Exit(int status);
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extern char *getenv(const char *name);
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extern int system(const char *string);
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extern void *bsearch(const void *key, const void *base, size_t nmemb, size_t size,
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int (*compar)(const void *, const void *));
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extern void qsort(void *base, size_t nmemb, size_t size,
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int (*compar)(const void *, const void *));
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extern int abs(int j);
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extern long int labs(long int j);
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extern long long int llabs(long long int j);
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extern div_t div(int numer, int denom);
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extern ldiv_t ldiv(long int numer, long int denom);
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extern lldiv_t lldiv(long long int numer, long long int denom);
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extern int mblen(const char *s, size_t n);
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extern int mbtowc(wchar_t * restrict pwc, const char * restrict s, size_t n);
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extern int wctomb(char *s, wchar_t wchar);
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extern size_t mbstowcs(wchar_t * restrict pwcs, const char * restrict s, size_t n);
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extern size_t wcstombs(char * restrict s, const wchar_t * restrict pwcs, size_t n);
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#ifdef __USE_MACROS
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extern int __abs;
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extern long __labs;
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extern long long __llabs;
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#define abs(x) (__abs = (x), (__abs) < 0 ? -__abs : __abs)
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#define labs(x) (__labs = (x), (__labs) < 0 ? -__labs : __labs)
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#define llabs(x) (__llabs = (x), (__llabs) < 0 ? -__llabs : __llabs)
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#endif
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#endif
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@ -0,0 +1,39 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _STRING_H
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#define _STRING_H
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#include <arch/string.h>
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#ifndef NULL
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#define NULL ((void *) 0)
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#endif
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extern void *memcpy(void * restrict s1, const void * restrict s2, size_t n);
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extern void *memmove(void *s1, const void *s2, size_t n);
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extern char *strcpy(char * restrict s1, const char * restrict s2);
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extern char *strncpy(char * restrict s1, const char * restrict s2, size_t n);
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extern char *strcat(char * restrict s1, const char * restrict s2);
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extern char *strncat(char * restrict s1, const char * restrict s2, size_t n);
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extern int memcmp(const void *s1, const void *s2, size_t n);
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extern int strcmp(const char *s1, const char *s2);
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extern int strcoll(const char *s1, const char *s2);
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extern int strncmp(const char *s1, const char *s2, size_t n);
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extern size_t strxfrm(char * restrict s1, const char * restrict s2, size_t n);
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extern void *memchr(const void *s, int c, size_t n);
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extern char *strchr(const char *s, int c);
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extern size_t strcspn(const char *s1, const char *s2);
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extern char *strpbrk(const char *s1, const char *s2);
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extern char *strrchr(const char *s, int c);
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extern size_t strspn(const char *s1, const char *s2);
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extern char *strstr(const char *s1, const char *s2);
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extern char *strtok(char * restrict s1, const char * restrict s2);
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extern void *memset(void *s, int c, size_t n);
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extern char *strerror(int errnum);
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extern size_t strlen(const char *s);
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#endif
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@ -0,0 +1,44 @@
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/*
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* Copyright (c) 2012-2017 Roberto E. Vargas Caballero
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef _TIME_H
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#define _TIME_H
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#include <arch/time.h>
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#ifndef NULL
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#define NULL ((void *) 0)
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#endif
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#define CLOCKS_PER_SEC 1000000
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typedef long int clock_t;
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struct tm {
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int tm_sec;
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int tm_min;
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int tm_hour;
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int tm_mday;
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int tm_mon;
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int tm_year;
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int tm_wday;
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int tm_yday;
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int tm_isdst;
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};
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extern clock_t clock(void);
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extern double difftime(time_t time1, time_t time0);
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extern time_t mktime(struct tm *timeptr);
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extern time_t time(time_t *timer);
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extern char *asctime(const struct tm *timeptr);
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extern char *ctime(const time_t *timer);
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extern struct tm *gmtime(const time_t *timer);
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extern struct tm *localtime(const time_t *timer);
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extern size_t strftime(char * restrict s, size_t maxsize,
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const char * restrict format,
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const struct tm * restrict timeptr);
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#endif
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@ -30,8 +30,9 @@ described in the `Contributing Guidelines`_.
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This project contains code from other projects as listed below. The original
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license text is included in those source files.
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|
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- The stdlib source code is derived from FreeBSD code, which uses various
|
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BSD licenses, including BSD-3-Clause and BSD-2-Clause.
|
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- The libc source code is derived from `FreeBSD`_ and `SCC`_. FreeBSD uses
|
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various BSD licenses, including BSD-3-Clause and BSD-2-Clause. The SCC code
|
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is used under the BSD-3-Clause license with the author's permission.
|
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|
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- The libfdt source code is disjunctively dual licensed
|
||||
(GPL-2.0+ OR BSD-2-Clause). It is used by this project under the terms of
|
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|
|
@ -275,3 +276,5 @@ Arm licensees may contact Arm directly via their partner managers.
|
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.. _Change Log: ./docs/change-log.rst
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||||
.. _User Guide: ./docs/user-guide.rst
|
||||
.. _Porting Guide: ./docs/porting-guide.rst
|
||||
.. _FreeBSD: http://www.freebsd.org
|
||||
.. _SCC: http://www.simple-cc.org/
|
||||
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Reference in New Issue