From f49e21207cf6dd51e69b3339dac5182829bbb4f9 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Mon, 3 Nov 2014 11:21:30 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@7464
35acf78f-673a-0410-8e92-d51de3d6d3f4
---
os/rt/ports/SIMIA32/GCC/chcore.c | 93 ++++++++++++++
os/rt/ports/SIMIA32/GCC/chcore.h | 250 ++++++++++++++++++++++++++++++++++++++
os/rt/ports/SIMIA32/GCC/chtypes.h | 77 ++++++++++++
os/rt/ports/SIMIA32/GCC/port.mk | 6 +
4 files changed, 426 insertions(+)
create mode 100644 os/rt/ports/SIMIA32/GCC/chcore.c
create mode 100644 os/rt/ports/SIMIA32/GCC/chcore.h
create mode 100644 os/rt/ports/SIMIA32/GCC/chtypes.h
create mode 100644 os/rt/ports/SIMIA32/GCC/port.mk
(limited to 'os/rt')
diff --git a/os/rt/ports/SIMIA32/GCC/chcore.c b/os/rt/ports/SIMIA32/GCC/chcore.c
new file mode 100644
index 000000000..24b38fa8f
--- /dev/null
+++ b/os/rt/ports/SIMIA32/GCC/chcore.c
@@ -0,0 +1,93 @@
+/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012,2013 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT 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 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT 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 this program. If not, see <http://www.gnu.org/licenses/>.
+
+ ---
+
+ A special exception to the GPL can be applied should you wish to distribute
+ a combined work that includes ChibiOS/RT, without being obliged to provide
+ the source code for any proprietary components. See the file exception.txt
+ for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @addtogroup SIMIA32_CORE
+ * @{
+ */
+
+#include <stdlib.h>
+
+#include "ch.h"
+#include "hal.h"
+
+/**
+ * Performs a context switch between two threads.
+ * @param otp the thread to be switched out
+ * @param ntp the thread to be switched in
+ */
+__attribute__((used))
+static void __dummy(Thread *ntp, Thread *otp) {
+ (void)ntp; (void)otp;
+
+ asm volatile (
+#if defined(WIN32)
+ ".globl @port_switch@8 \n\t"
+ "@port_switch@8:"
+#elif defined(__APPLE__)
+ ".globl _port_switch \n\t"
+ "_port_switch:"
+#else
+ ".globl port_switch \n\t"
+ "port_switch:"
+#endif
+ "push %ebp \n\t"
+ "push %esi \n\t"
+ "push %edi \n\t"
+ "push %ebx \n\t"
+ "movl %esp, 12(%edx) \n\t"
+ "movl 12(%ecx), %esp \n\t"
+ "pop %ebx \n\t"
+ "pop %edi \n\t"
+ "pop %esi \n\t"
+ "pop %ebp \n\t"
+ "ret");
+}
+
+/**
+ * Halts the system. In this implementation it just exits the simulation.
+ */
+__attribute__((fastcall))
+void port_halt(void) {
+
+ exit(2);
+}
+
+/**
+ * @brief Start a thread by invoking its work function.
+ * @details If the work function returns @p chThdExit() is automatically
+ * invoked.
+ */
+__attribute__((cdecl, noreturn))
+void _port_thread_start(msg_t (*pf)(void *), void *p) {
+
+ chSysUnlock();
+ chThdExit(pf(p));
+ while(1);
+}
+
+/** @} */
diff --git a/os/rt/ports/SIMIA32/GCC/chcore.h b/os/rt/ports/SIMIA32/GCC/chcore.h
new file mode 100644
index 000000000..06e28b35f
--- /dev/null
+++ b/os/rt/ports/SIMIA32/GCC/chcore.h
@@ -0,0 +1,250 @@
+/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012,2013 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT 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 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT 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 this program. If not, see <http://www.gnu.org/licenses/>.
+
+ ---
+
+ A special exception to the GPL can be applied should you wish to distribute
+ a combined work that includes ChibiOS/RT, without being obliged to provide
+ the source code for any proprietary components. See the file exception.txt
+ for full details of how and when the exception can be applied.
+*/
+
+/**
+ * @addtogroup SIMIA32_CORE
+ * @{
+ */
+
+#ifndef _CHCORE_H_
+#define _CHCORE_H_
+
+#if CH_DBG_ENABLE_STACK_CHECK
+#error "option CH_DBG_ENABLE_STACK_CHECK not supported by this port"
+#endif
+
+/**
+ * Macro defining the a simulated architecture into x86.
+ */
+#define CH_ARCHITECTURE_SIMIA32
+
+/**
+ * Name of the implemented architecture.
+ */
+#define CH_ARCHITECTURE_NAME "Simulator"
+
+/**
+ * @brief Name of the architecture variant (optional).
+ */
+#define CH_CORE_VARIANT_NAME "x86 (integer only)"
+
+/**
+ * @brief Name of the compiler supported by this port.
+ */
+#define CH_COMPILER_NAME "GCC " __VERSION__
+
+/**
+ * @brief Port-specific information string.
+ */
+#define CH_PORT_INFO "No preemption"
+
+/**
+ * 16 bytes stack alignment.
+ */
+typedef struct {
+ uint8_t a[16];
+} stkalign_t __attribute__((aligned(16)));
+
+/**
+ * Generic x86 register.
+ */
+typedef void *regx86;
+
+/**
+ * Interrupt saved context.
+ * This structure represents the stack frame saved during a preemption-capable
+ * interrupt handler.
+ */
+struct extctx {
+};
+
+/**
+ * System saved context.
+ * @note In this demo the floating point registers are not saved.
+ */
+struct intctx {
+ regx86 ebx;
+ regx86 edi;
+ regx86 esi;
+ regx86 ebp;
+ regx86 eip;
+};
+
+/**
+ * Platform dependent part of the @p Thread structure.
+ * This structure usually contains just the saved stack pointer defined as a
+ * pointer to a @p intctx structure.
+ */
+struct context {
+ struct intctx volatile *esp;
+};
+
+#define APUSH(p, a) (p) -= sizeof(void *), *(void **)(p) = (void*)(a)
+
+/* Darwin requires the stack to be aligned to a 16-byte boundary at
+ * the time of a call instruction (in case the called function needs
+ * to save MMX registers). This aligns to 'mod' module 16, so that we'll end
+ * up with the right alignment after pushing the args. */
+#define AALIGN(p, mask, mod) p = (void *)((((uintptr_t)(p) - mod) & ~mask) + mod)
+
+/**
+ * Platform dependent part of the @p chThdCreateI() API.
+ * This code usually setup the context switching frame represented by a
+ * @p intctx structure.
+ */
+#define SETUP_CONTEXT(workspace, wsize, pf, arg) { \
+ uint8_t *esp = (uint8_t *)workspace + wsize; \
+ APUSH(esp, 0); \
+ uint8_t *savebp = esp; \
+ AALIGN(esp, 15, 8); \
+ APUSH(esp, arg); \
+ APUSH(esp, pf); \
+ APUSH(esp, 0); \
+ esp -= sizeof(struct intctx); \
+ ((struct intctx *)esp)->eip = _port_thread_start; \
+ ((struct intctx *)esp)->ebx = 0; \
+ ((struct intctx *)esp)->edi = 0; \
+ ((struct intctx *)esp)->esi = 0; \
+ ((struct intctx *)esp)->ebp = savebp; \
+ tp->p_ctx.esp = (struct intctx *)esp; \
+}
+
+/**
+ * Stack size for the system idle thread.
+ */
+#ifndef PORT_IDLE_THREAD_STACK_SIZE
+#define PORT_IDLE_THREAD_STACK_SIZE 256
+#endif
+
+/**
+ * Per-thread stack overhead for interrupts servicing, it is used in the
+ * calculation of the correct working area size.
+ * It requires stack space because the simulated "interrupt handlers" can
+ * invoke host library functions inside so it better have a lot of space.
+ */
+#ifndef PORT_INT_REQUIRED_STACK
+#define PORT_INT_REQUIRED_STACK 16384
+#endif
+
+/**
+ * Enforces a correct alignment for a stack area size value.
+ */
+#define STACK_ALIGN(n) ((((n) - 1) | (sizeof(stkalign_t) - 1)) + 1)
+
+ /**
+ * Computes the thread working area global size.
+ */
+#define THD_WA_SIZE(n) STACK_ALIGN(sizeof(Thread) + \
+ sizeof(void *) * 4 + \
+ sizeof(struct intctx) + \
+ sizeof(struct extctx) + \
+ (n) + (PORT_INT_REQUIRED_STACK))
+
+/**
+ * Macro used to allocate a thread working area aligned as both position and
+ * size.
+ */
+#define WORKING_AREA(s, n) stkalign_t s[THD_WA_SIZE(n) / sizeof(stkalign_t)]
+
+/**
+ * IRQ prologue code, inserted at the start of all IRQ handlers enabled to
+ * invoke system APIs.
+ */
+#define PORT_IRQ_PROLOGUE()
+
+/**
+ * IRQ epilogue code, inserted at the end of all IRQ handlers enabled to
+ * invoke system APIs.
+ */
+#define PORT_IRQ_EPILOGUE()
+
+/**
+ * IRQ handler function declaration.
+ */
+#define PORT_IRQ_HANDLER(id) void id(void)
+
+/**
+ * Simulator initialization.
+ */
+#define port_init()
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_lock() asm volatile("nop")
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_unlock() asm volatile("nop")
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_lock_from_isr()
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_unlock_from_isr()
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_disable()
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_suspend()
+
+/**
+ * Does nothing in this simulator.
+ */
+#define port_enable()
+
+/**
+ * In the simulator this does a polling pass on the simulated interrupt
+ * sources.
+ */
+#define port_wait_for_interrupt() ChkIntSources()
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ __attribute__((fastcall)) void port_switch(Thread *ntp, Thread *otp);
+ __attribute__((fastcall)) void port_halt(void);
+ __attribute__((cdecl, noreturn)) void _port_thread_start(msg_t (*pf)(void *),
+ void *p);
+ void ChkIntSources(void);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CHCORE_H_ */
+
+/** @} */
diff --git a/os/rt/ports/SIMIA32/GCC/chtypes.h b/os/rt/ports/SIMIA32/GCC/chtypes.h
new file mode 100644
index 000000000..a74b80a4b
--- /dev/null
+++ b/os/rt/ports/SIMIA32/GCC/chtypes.h
@@ -0,0 +1,77 @@
+/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012,2013 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT 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 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT 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 this program. If not, see <http://www.gnu.org/licenses/>.
+
+ ---
+
+ A special exception to the GPL can be applied should you wish to distribute
+ a combined work that includes ChibiOS/RT, without being obliged to provide
+ the source code for any proprietary components. See the file exception.txt
+ for full details of how and when the exception can be applied.
+*/
+
+#ifndef _CHTYPES_H_
+#define _CHTYPES_H_
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef bool bool_t; /**< Fast boolean type. */
+typedef uint8_t tmode_t; /**< Thread flags. */
+typedef uint8_t tstate_t; /**< Thread state. */
+typedef uint8_t trefs_t; /**< Thread references counter. */
+typedef uint8_t tslices_t; /**< Thread time slices counter. */
+typedef uint32_t tprio_t; /**< Thread priority. */
+typedef int32_t msg_t; /**< Inter-thread message. */
+typedef int32_t eventid_t; /**< Event Id. */
+typedef uint32_t eventmask_t; /**< Event mask. */
+typedef uint32_t flagsmask_t; /**< Event flags. */
+typedef uint32_t systime_t; /**< System time. */
+typedef int32_t cnt_t; /**< Resources counter. */
+
+/**
+ * @brief Inline function modifier.
+ */
+#define INLINE inline
+
+/**
+ * @brief ROM constant modifier.
+ * @note It is set to use the "const" keyword in this port.
+ */
+#define ROMCONST const
+
+/**
+ * @brief Packed structure modifier (within).
+ * @note It uses the "packed" GCC attribute.
+ */
+#define PACK_STRUCT_STRUCT __attribute__((packed))
+
+/**
+ * @brief Packed structure modifier (before).
+ * @note Empty in this port.
+ */
+#define PACK_STRUCT_BEGIN
+
+/**
+ * @brief Packed structure modifier (after).
+ * @note Empty in this port.
+ */
+#define PACK_STRUCT_END
+
+#endif /* _CHTYPES_H_ */
diff --git a/os/rt/ports/SIMIA32/GCC/port.mk b/os/rt/ports/SIMIA32/GCC/port.mk
new file mode 100644
index 000000000..8f053abc4
--- /dev/null
+++ b/os/rt/ports/SIMIA32/GCC/port.mk
@@ -0,0 +1,6 @@
+# List of the ChibiOS/RT SIMIA32 port files.
+PORTSRC = ${CHIBIOS}/os/ports/GCC/SIMIA32/chcore.c
+
+PORTASM =
+
+PORTINC = ${CHIBIOS}/os/ports/GCC/SIMIA32
--
cgit v1.2.3