Add an ARMv7-A system call definition header file

arch/arm/include/armv6-m/syscall.h

@@ -51,7 +51,7 @@
 #endif
 
 /****************************************************************************
- * Pro-processor Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /* This is the value used as the argument to the SVC instruction.  It is not

arch/arm/include/armv7-m/syscall.h

@@ -51,7 +51,7 @@
 #endif
 
 /****************************************************************************
- * Pro-processor Definitions
+ * Pre-processor Definitions
  ****************************************************************************/
 
 /* This is the value used as the argument to the SVC instruction.  It is not

arch/arm/src/armv6-m/svcall.h

@@ -52,7 +52,8 @@
 
 /* Configuration ********************************************************************/
 /* This logic uses three system calls {0,1,2} for context switching and one for the
- * syscall return.  The first four syscall values must be reserved.
+ * syscall return.  So a minimum of four syscall values must be reserved.  If
+ * CONFIG_NUTTX_KERNEL is defined, then four more syscall values must be reserved.
  */
 
 #ifdef CONFIG_LIB_SYSCALL
@@ -64,9 +65,9 @@
 #    endif
 #  else
 #    ifndef CONFIG_SYS_RESERVED
-#      error "CONFIG_SYS_RESERVED must be defined to have the value 3"
+#      error "CONFIG_SYS_RESERVED must be defined to have the value 4"
-#    elif CONFIG_SYS_RESERVED != 3
+#    elif CONFIG_SYS_RESERVED != 4
-#      error "CONFIG_SYS_RESERVED must have the value 3"
+#      error "CONFIG_SYS_RESERVED must have the value 4"
 #    endif
 #  endif
 #endif
@@ -94,7 +95,7 @@
 
 #define SYS_switch_context        (2)
 
-#ifdef CONFIG_NUTTX_KERNEL
+#ifdef CONFIG_LIB_SYSCALL
 /* SYS call 3:
  *
  * void up_syscall_return(void);
@@ -102,6 +103,7 @@
 
 #define SYS_syscall_return        (3)
 
+#ifdef CONFIG_NUTTX_KERNEL
 /* SYS call 4:
  *
  * void up_task_start(main_t taskentry, int argc, FAR char *argv[])
@@ -132,7 +134,9 @@
  */
 
 #define SYS_signal_handler_return (7)
-#endif
+
+#endif /* CONFIG_NUTTX_KERNEL */
+#endif /* CONFIG_LIB_SYSCALL */
 
 /************************************************************************************
  * Inline Functions

arch/arm/src/armv7-a/syscall.h

@@ -0,0 +1,123 @@
+/************************************************************************************
+ * arch/arm/src/armv7-a/syscall.h
+ *
+ *   Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_COMMON_CORTEXM_SVCALL_H
+#define __ARCH_ARM_SRC_COMMON_CORTEXM_SVCALL_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#ifdef CONFIG_LIB_SYSCALL
+#  include <syscall.h>
+#endif
+
+#ifdef CONFIG_LIB_SYSCALL
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Configuration ********************************************************************/
+/* This logic uses one system call for the syscall return.  So a minimum of one
+ * syscall values must be reserved.  If CONFIG_NUTTX_KERNEL is defined, then four
+ * more syscall values must be reserved.
+ */
+
+#ifdef CONFIG_NUTTX_KERNEL
+#  ifndef CONFIG_SYS_RESERVED
+#    error "CONFIG_SYS_RESERVED must be defined to have the value 5"
+#  elif CONFIG_SYS_RESERVED != 5
+#    error "CONFIG_SYS_RESERVED must have the value 5"
+#  endif
+#else
+#  ifndef CONFIG_SYS_RESERVED
+#    error "CONFIG_SYS_RESERVED must be defined to have the value 1"
+#  elif CONFIG_SYS_RESERVED != 1
+#    error "CONFIG_SYS_RESERVED must have the value 1"
+#  endif
+#endif
+
+/* Cortex M3 system calls ***********************************************************/
+
+/* SYS call 0:
+ *
+ * void up_syscall_return(void);
+ */
+
+#define SYS_syscall_return        (0)
+
+#ifdef CONFIG_NUTTX_KERNEL
+/* SYS call 1:
+ *
+ * void up_task_start(main_t taskentry, int argc, FAR char *argv[])
+ *        noreturn_function;
+ */
+
+#define SYS_task_start            (1)
+
+/* SYS call 2:
+ *
+ * void up_pthread_start(pthread_startroutine_t entrypt, pthread_addr_t arg)
+ *        noreturn_function
+ */
+
+#define SYS_pthread_start         (2)
+
+/* SYS call 3:
+ *
+ * void signal_handler(_sa_sigaction_t sighand, int signo, FAR siginfo_t *info,
+ *                     FAR void *ucontext);
+ */
+
+#define SYS_signal_handler        (3)
+
+/* SYS call 4:
+ *
+ * void signal_handler_return(void);
+ */
+
+#define SYS_signal_handler_return (4)
+
+#endif /* CONFIG_NUTTX_KERNEL */
+
+/************************************************************************************
+ * Inline Functions
+ ************************************************************************************/
+
+#endif /* CONFIG_LIB_SYSCALL */
+#endif  /* __ARCH_ARM_SRC_COMMON_CORTEXM_SVCALL_H */

arch/arm/src/armv7-m/svcall.h

@@ -52,7 +52,8 @@
 
 /* Configuration ********************************************************************/
 /* This logic uses three system calls {0,1,2} for context switching and one for the
- * syscall return.  The first four syscall values must be reserved.
+ * syscall return.  So a minimum of four syscall values must be reserved.  If
+ * CONFIG_NUTTX_KERNEL is defined, then four more syscall values must be reserved.
  */
 
 #ifdef CONFIG_LIB_SYSCALL
@@ -64,9 +65,9 @@
 #    endif
 #  else
 #    ifndef CONFIG_SYS_RESERVED
-#      error "CONFIG_SYS_RESERVED must be defined to have the value 3"
+#      error "CONFIG_SYS_RESERVED must be defined to have the value 4"
-#    elif CONFIG_SYS_RESERVED != 3
+#    elif CONFIG_SYS_RESERVED != 4
-#      error "CONFIG_SYS_RESERVED must have the value 3"
+#      error "CONFIG_SYS_RESERVED must have the value 4"
 #    endif
 #  endif
 #endif
@@ -94,7 +95,7 @@
 
 #define SYS_switch_context        (2)
 
-#ifdef CONFIG_NUTTX_KERNEL
+#ifdef CONFIG_LIB_SYSCALL
 /* SYS call 3:
  *
  * void up_syscall_return(void);
@@ -102,6 +103,7 @@
 
 #define SYS_syscall_return        (3)
 
+#ifdef CONFIG_NUTTX_KERNEL
 /* SYS call 4:
  *
  * void up_task_start(main_t taskentry, int argc, FAR char *argv[])
@@ -132,7 +134,9 @@
  */
 
 #define SYS_signal_handler_return (7)
-#endif
+
+#endif /* CONFIG_NUTTX_KERNEL */
+#endif /* CONFIG_LIB_SYSCALL */
 
 /************************************************************************************
  * Inline Functions