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Diffstat (limited to 'libgloss/mn10300/cygmon.c')
-rw-r--r-- | libgloss/mn10300/cygmon.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/libgloss/mn10300/cygmon.c b/libgloss/mn10300/cygmon.c deleted file mode 100644 index 513115cd6..000000000 --- a/libgloss/mn10300/cygmon.c +++ /dev/null @@ -1,73 +0,0 @@ -/* cygmon.c -- Glue code for linking apps to run on top of Cygmon. - * - * Copyright (c) 1998, 1999, 2000, 2001 Red Hat, 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 <errno.h> - -// These need to be kept in sync with the definitions in Cygmon. -#define SYS_meminfo 1001 -#include "syscall.h" - -/* Structure filled in by get_mem_info. Only the size field is - actually used (by sbrk), so the others aren't even filled in. */ -struct s_mem -{ - unsigned int size; - unsigned int icsize; - unsigned int dcsize; -}; - -// Perform a system call. -// Unused parameters should be set to 0. -int __trap0(unsigned long func, unsigned long p1, unsigned long p2, unsigned long p3) -{ - int ret = 0; -#ifdef __AM33__ - { - register unsigned long d0 asm ("d0") = func; - register unsigned long d1 asm ("d1") = p1; - register unsigned long d2 asm ("d2") = p2; - register unsigned long d3 asm ("d3") = p3; - asm volatile (" syscall 0\n" - " nop" - : "+d" (d0) : "d" (d1), "d" (d2), "d" (d3) : "memory"); - ret = d0; - } -#endif - - if (func == SYS_exit) - { - while (1) - { - asm volatile (" .byte 0xff "); // trigger a breakpoint to drop back into Cygmon - } - } - - if (ret != 0) - errno = ret; - - return ret; -} - -void * -get_mem_info (mem) - struct s_mem *mem; -{ - unsigned long totmem = 0, topmem = 0; - register int numbanks; - - numbanks = __trap0(SYS_meminfo, (unsigned long)&totmem, (unsigned long)&topmem, 0); - mem->size = totmem; - return (void*)topmem; -} |