mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-02-24 01:29:34 +08:00
cf7c22b5d8
* m68k/Makefile.in (bdm-semihost.o): Build from bdm-semihost.S. * m68k/bdm-semihost.c: Remove. * m68k/bdm-semihost.S: New. * m68k/bdm-crt0.S: Don't install semihosting trap handler. * m68k/bdm-close.c, bdm-exit.c, bdm-fstat.c, bdm-gettimeofday.c, bdm-isatty.c, bdm-lseek.c, bdm-open.c, bdm-read.c, bdm-rename.c, bdm-stat.c, bdm-system.c, bdm-unlink.c, bdm-write.c): Update. * m68k/bdm-isrs.c: Update comment. * m68k/bdm-semihost.h (BDM_TRAPNUM, BDM_FUNC_REG, BDM_ARG_REG, BDM_TRAP): Remove. (__bdm_semihost): Declare.
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
|
|
* bdm-read.c --
|
|
*
|
|
* Copyright (c) 2006 CodeSourcery Inc
|
|
*
|
|
* The authors hereby grant permission to use, copy, modify, distribute,
|
|
* and license this software and its documentation for any purpose, provided
|
|
* that existing copyright notices are retained in all copies and that this
|
|
* notice is included verbatim in any distributions. No written agreement,
|
|
* license, or royalty fee is required for any of the authorized uses.
|
|
* Modifications to this software may be copyrighted by their authors
|
|
* and need not follow the licensing terms described here, provided that
|
|
* the new terms are clearly indicated on the first page of each file where
|
|
* they apply.
|
|
*/
|
|
|
|
#include "bdm-semihost.h"
|
|
#include "bdm-gdb.h"
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
/*
|
|
* read -- read from a file descriptor
|
|
* input parameters:
|
|
* 0 : file descriptor
|
|
* 1 : buf ptr
|
|
* 2 : count
|
|
* output parameters:
|
|
* 0 : result
|
|
* 1 : errno
|
|
*/
|
|
|
|
ssize_t read (int fd, void *buf, size_t count)
|
|
{
|
|
gdb_parambuf_t parameters;
|
|
parameters[0] = (uint32_t) fd;
|
|
parameters[1] = (uint32_t) buf;
|
|
parameters[2] = (uint32_t) count;
|
|
__bdm_semihost (BDM_READ, parameters);
|
|
errno = convert_from_gdb_errno (parameters[1]);
|
|
return parameters[0];
|
|
}
|