git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7468 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
b7f6a60696
commit
a9d9d5d259
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @addtogroup SIMIA32_CORE
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* @{
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*/
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#include <stdlib.h>
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#include "ch.h"
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#include "hal.h"
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/**
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* Performs a context switch between two threads.
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* @param otp the thread to be switched out
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* @param ntp the thread to be switched in
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*/
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__attribute__((used))
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static void __dummy(Thread *ntp, Thread *otp) {
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(void)ntp; (void)otp;
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asm volatile (
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#if defined(WIN32)
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".globl @port_switch@8 \n\t"
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"@port_switch@8:"
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#elif defined(__APPLE__)
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".globl _port_switch \n\t"
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"_port_switch:"
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#else
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".globl port_switch \n\t"
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"port_switch:"
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#endif
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"push %ebp \n\t"
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"push %esi \n\t"
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"push %edi \n\t"
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"push %ebx \n\t"
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"movl %esp, 12(%edx) \n\t"
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"movl 12(%ecx), %esp \n\t"
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"pop %ebx \n\t"
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"pop %edi \n\t"
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"pop %esi \n\t"
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"pop %ebp \n\t"
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"ret");
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}
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/**
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* Halts the system. In this implementation it just exits the simulation.
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*/
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__attribute__((fastcall))
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void port_halt(void) {
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exit(2);
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}
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/**
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* @brief Start a thread by invoking its work function.
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* @details If the work function returns @p chThdExit() is automatically
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* invoked.
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*/
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__attribute__((cdecl, noreturn))
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void _port_thread_start(msg_t (*pf)(void *), void *p) {
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chSysUnlock();
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chThdExit(pf(p));
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while(1);
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}
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/** @} */
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@ -0,0 +1,250 @@
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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|
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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---
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes ChibiOS/RT, without being obliged to provide
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the source code for any proprietary components. See the file exception.txt
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for full details of how and when the exception can be applied.
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*/
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/**
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* @addtogroup SIMIA32_CORE
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* @{
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*/
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#ifndef _CHCORE_H_
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#define _CHCORE_H_
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#if CH_DBG_ENABLE_STACK_CHECK
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#error "option CH_DBG_ENABLE_STACK_CHECK not supported by this port"
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#endif
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/**
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* Macro defining the a simulated architecture into x86.
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*/
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#define CH_ARCHITECTURE_SIMIA32
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/**
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* Name of the implemented architecture.
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*/
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#define CH_ARCHITECTURE_NAME "Simulator"
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/**
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* @brief Name of the architecture variant (optional).
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*/
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#define CH_CORE_VARIANT_NAME "x86 (integer only)"
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/**
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* @brief Name of the compiler supported by this port.
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*/
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#define CH_COMPILER_NAME "GCC " __VERSION__
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/**
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* @brief Port-specific information string.
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*/
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#define CH_PORT_INFO "No preemption"
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/**
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* 16 bytes stack alignment.
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*/
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typedef struct {
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uint8_t a[16];
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} stkalign_t __attribute__((aligned(16)));
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/**
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* Generic x86 register.
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*/
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typedef void *regx86;
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/**
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* Interrupt saved context.
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* This structure represents the stack frame saved during a preemption-capable
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* interrupt handler.
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*/
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struct extctx {
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};
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/**
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* System saved context.
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* @note In this demo the floating point registers are not saved.
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*/
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struct intctx {
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regx86 ebx;
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regx86 edi;
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regx86 esi;
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regx86 ebp;
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regx86 eip;
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};
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/**
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* Platform dependent part of the @p Thread structure.
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* This structure usually contains just the saved stack pointer defined as a
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* pointer to a @p intctx structure.
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*/
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struct context {
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struct intctx volatile *esp;
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};
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#define APUSH(p, a) (p) -= sizeof(void *), *(void **)(p) = (void*)(a)
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/* Darwin requires the stack to be aligned to a 16-byte boundary at
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* the time of a call instruction (in case the called function needs
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* to save MMX registers). This aligns to 'mod' module 16, so that we'll end
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* up with the right alignment after pushing the args. */
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#define AALIGN(p, mask, mod) p = (void *)((((uintptr_t)(p) - mod) & ~mask) + mod)
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/**
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* Platform dependent part of the @p chThdCreateI() API.
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* This code usually setup the context switching frame represented by a
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* @p intctx structure.
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*/
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#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
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uint8_t *esp = (uint8_t *)workspace + wsize; \
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APUSH(esp, 0); \
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uint8_t *savebp = esp; \
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AALIGN(esp, 15, 8); \
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APUSH(esp, arg); \
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APUSH(esp, pf); \
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APUSH(esp, 0); \
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esp -= sizeof(struct intctx); \
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((struct intctx *)esp)->eip = _port_thread_start; \
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((struct intctx *)esp)->ebx = 0; \
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((struct intctx *)esp)->edi = 0; \
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((struct intctx *)esp)->esi = 0; \
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((struct intctx *)esp)->ebp = savebp; \
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tp->p_ctx.esp = (struct intctx *)esp; \
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}
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/**
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* Stack size for the system idle thread.
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*/
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#ifndef PORT_IDLE_THREAD_STACK_SIZE
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#define PORT_IDLE_THREAD_STACK_SIZE 256
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#endif
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/**
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* Per-thread stack overhead for interrupts servicing, it is used in the
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* calculation of the correct working area size.
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* It requires stack space because the simulated "interrupt handlers" can
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* invoke host library functions inside so it better have a lot of space.
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*/
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#ifndef PORT_INT_REQUIRED_STACK
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#define PORT_INT_REQUIRED_STACK 16384
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#endif
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/**
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* Enforces a correct alignment for a stack area size value.
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*/
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#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
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/**
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* Computes the thread working area global size.
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*/
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#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \
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sizeof(void *) * 4 + \
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sizeof(struct intctx) + \
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sizeof(struct extctx) + \
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(n) + (PORT_INT_REQUIRED_STACK))
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/**
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* Macro used to allocate a thread working area aligned as both position and
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* size.
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*/
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#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)]
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/**
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* IRQ prologue code, inserted at the start of all IRQ handlers enabled to
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* invoke system APIs.
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*/
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#define PORT_IRQ_PROLOGUE()
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/**
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* IRQ epilogue code, inserted at the end of all IRQ handlers enabled to
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* invoke system APIs.
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*/
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#define PORT_IRQ_EPILOGUE()
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/**
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* IRQ handler function declaration.
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*/
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#define PORT_IRQ_HANDLER(id) void id(void)
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/**
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* Simulator initialization.
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*/
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#define port_init()
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/**
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* Does nothing in this simulator.
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*/
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#define port_lock() asm volatile("nop")
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/**
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* Does nothing in this simulator.
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*/
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#define port_unlock() asm volatile("nop")
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/**
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* Does nothing in this simulator.
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*/
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#define port_lock_from_isr()
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/**
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* Does nothing in this simulator.
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*/
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#define port_unlock_from_isr()
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/**
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* Does nothing in this simulator.
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*/
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#define port_disable()
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/**
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* Does nothing in this simulator.
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*/
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#define port_suspend()
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/**
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* Does nothing in this simulator.
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*/
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#define port_enable()
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/**
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* In the simulator this does a polling pass on the simulated interrupt
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* sources.
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*/
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#define port_wait_for_interrupt() ChkIntSources()
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#ifdef __cplusplus
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extern "C" {
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#endif
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__attribute__((fastcall)) void port_switch(Thread *ntp, Thread *otp);
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__attribute__((fastcall)) void port_halt(void);
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__attribute__((cdecl, noreturn)) void _port_thread_start(msg_t (*pf)(void *),
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void *p);
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void ChkIntSources(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CHCORE_H_ */
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/** @} */
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@ -0,0 +1,111 @@
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/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012,2013,2014 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
|
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|
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ChibiOS/RT is free software; you can redistribute it and/or modify
|
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it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
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(at your option) any later version.
|
||||
|
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ChibiOS/RT is distributed in the hope that it will be useful,
|
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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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file SIMIA32/compilers/GCC/chtypes.h
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* @brief Simulator on IA32 port system types.
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*
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* @addtogroup SIMIA32_GCC_CORE
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* @{
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*/
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#ifndef _CHTYPES_H_
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#define _CHTYPES_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <stdbool.h>
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/**
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* @name Common constants
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*/
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/**
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* @brief Generic 'false' boolean constant.
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*/
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#if !defined(FALSE) || defined(__DOXYGEN__)
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#define FALSE 0
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#endif
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/**
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* @brief Generic 'true' boolean constant.
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*/
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#if !defined(TRUE) || defined(__DOXYGEN__)
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#define TRUE (!FALSE)
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#endif
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/** @} */
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/**
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* @name Derived generic types
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* @{
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*/
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typedef volatile int8_t vint8_t; /**< Volatile signed 8 bits. */
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typedef volatile uint8_t vuint8_t; /**< Volatile unsigned 8 bits. */
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typedef volatile int16_t vint16_t; /**< Volatile signed 16 bits. */
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typedef volatile uint16_t vuint16_t; /**< Volatile unsigned 16 bits. */
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typedef volatile int32_t vint32_t; /**< Volatile signed 32 bits. */
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typedef volatile uint32_t vuint32_t; /**< Volatile unsigned 32 bits. */
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/** @} */
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/**
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* @name Kernel types
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* @{
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*/
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typedef uint32_t rtcnt_t; /**< Realtime counter. */
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typedef uint64_t rttime_t; /**< Realtime accumulator. */
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typedef uint32_t syssts_t; /**< System status word. */
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typedef uint8_t tmode_t; /**< Thread flags. */
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typedef uint8_t tstate_t; /**< Thread state. */
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typedef uint8_t trefs_t; /**< Thread references counter. */
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typedef uint8_t tslices_t; /**< Thread time slices counter.*/
|
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typedef uint32_t tprio_t; /**< Thread priority. */
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typedef int32_t msg_t; /**< Inter-thread message. */
|
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typedef int32_t eventid_t; /**< Numeric event identifier. */
|
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typedef uint32_t eventmask_t; /**< Mask of event identifiers. */
|
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typedef uint32_t eventflags_t; /**< Mask of event flags. */
|
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typedef int32_t cnt_t; /**< Generic signed counter. */
|
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typedef uint32_t ucnt_t; /**< Generic unsigned counter. */
|
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/** @} */
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|
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/**
|
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* @brief ROM constant modifier.
|
||||
* @note It is set to use the "const" keyword in this port.
|
||||
*/
|
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#define ROMCONST const
|
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|
||||
/**
|
||||
* @brief Makes functions not inlineable.
|
||||
* @note If the compiler does not support such attribute then the
|
||||
* realtime counter precision could be degraded.
|
||||
*/
|
||||
#define NOINLINE __attribute__((noinline))
|
||||
|
||||
/**
|
||||
* @brief Optimized thread function declaration macro.
|
||||
*/
|
||||
#define PORT_THD_FUNCTION(tname, arg) msg_t tname(void *arg)
|
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|
||||
/**
|
||||
* @brief Packed variable specifier.
|
||||
*/
|
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#define PACKED_VAR __attribute__((packed))
|
||||
|
||||
#endif /* _CHTYPES_H_ */
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||||
/** @} */
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@ -0,0 +1,6 @@
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# List of the ChibiOS/RT SIMIA32 port files.
|
||||
PORTSRC = ${CHIBIOS}/os/ports/GCC/SIMIA32/chcore.c
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PORTASM =
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|
||||
PORTINC = ${CHIBIOS}/os/ports/GCC/SIMIA32
|
||||
Loading…
Reference in New Issue