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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [mn10300/] [am33/] [v2_0/] [src/] [redboot_linux_exec.c] - Rev 475
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//========================================================================== // // redboot_linux_exec.c // // AM33 Linux specific RedBoot exec command // //========================================================================== //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos is free software; you can redistribute it and/or modify it under // the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 or (at your option) any later version. // // eCos is distributed in the hope that it will be useful, but WITHOUT ANY // WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //========================================================================== //#####DESCRIPTIONBEGIN#### // // Author(s): dhowells // Contributors: gthomas, jskov, msalter // Date: 2001-07-19 // Purpose: // Description: // // This code is part of RedBoot (tm). // //####DESCRIPTIONEND#### // //========================================================================== #include <redboot.h> #include <cyg/hal/hal_intr.h> #include <cyg/hal/hal_cache.h> // Exported CLI function(s) // The exec command works like the go command in YAMON - that is, // providing callee with argc, argv, and env. In addition to the // information provided by the user, static void do_exec(int argc, char *argv[]); static char exec_usage[] = "[-w timeout] [-c \"kernel command line\"] [<entry_point>]"; RedBoot_cmd("exec", "Execute an image - with MMU off", exec_usage, do_exec ); typedef void (*code_fun)(void) __attribute__((noreturn)); static void do_exec(int argc, char *argv[]) { unsigned long oldints; bool wait_time_set; int wait_time, res; bool cmd_line_set; struct option_info opts[4]; code_fun entry; char line[8]; char *cmd_line; int num_options; entry = (code_fun)entry_address; // Default from last 'load' operation init_opts(&opts[0], 'w', true, OPTION_ARG_TYPE_NUM, (void **)&wait_time, (bool *)&wait_time_set, "wait timeout"); init_opts(&opts[1], 'c', true, OPTION_ARG_TYPE_STR, (void **)&cmd_line, (bool *)&cmd_line_set, "kernel command line"); num_options = 2; if (!scan_opts(argc, argv, 1, opts, num_options, (void *)&entry, OPTION_ARG_TYPE_NUM, "starting address")) { return; } if (cmd_line_set) { memcpy((char*)CYGHWR_REDBOOT_AM33_LINUX_CMD_ADDRESS,"cmdline:",8); strncpy((char*)CYGHWR_REDBOOT_AM33_LINUX_CMD_ADDRESS+8,cmd_line,256); *(char*)(CYGHWR_REDBOOT_AM33_LINUX_CMD_ADDRESS+8+256) = 0; } else { *(char*)(CYGHWR_REDBOOT_AM33_LINUX_CMD_ADDRESS+256) = 0; } if (wait_time_set) { diag_printf("About to start execution at %p - abort with ^C within %d seconds\n", (void *)entry, wait_time); res = _rb_gets(line, sizeof(line), wait_time*1000); if (res == _GETS_CTRLC) { return; } } HAL_DISABLE_INTERRUPTS(oldints); HAL_DCACHE_SYNC(); HAL_ICACHE_DISABLE(); HAL_DCACHE_DISABLE(); HAL_DCACHE_SYNC(); HAL_ICACHE_INVALIDATE_ALL(); HAL_DCACHE_INVALIDATE_ALL(); (*entry)(); } // EOF redboot_linux_exec.c
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