4b22ba7e4b
Split out the arch specific syscall code to reduce include pollution from other arch related headers. For example on ARM its possible to get errno.h included via SoC specific headers. Which created an interesting compile issue because of the order of syscall & errno/errno syscall inclusion. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
/*
|
|
* Copyright (c) 2014 Wind River Systems, Inc.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* @brief ARCv2 public error handling
|
|
*
|
|
* ARC-specific kernel error handling interface. Included by arc/arch.h.
|
|
*/
|
|
|
|
#ifndef _ARCH_ARC_V2_ERROR_H_
|
|
#define _ARCH_ARC_V2_ERROR_H_
|
|
|
|
#include <arch/arc/syscall.h>
|
|
#include <arch/arc/v2/exc.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifndef _ASMLANGUAGE
|
|
#include <toolchain/gcc.h>
|
|
extern void _NanoFatalErrorHandler(unsigned int, const NANO_ESF*);
|
|
extern void _SysFatalErrorHandler(unsigned int cause, const NANO_ESF *esf);
|
|
#endif
|
|
|
|
#define _NANO_ERR_HW_EXCEPTION (0) /* MPU/Bus/Usage fault */
|
|
#define _NANO_ERR_STACK_CHK_FAIL (2) /* Stack corruption detected */
|
|
#define _NANO_ERR_ALLOCATION_FAIL (3) /* Kernel Allocation Failure */
|
|
#define _NANO_ERR_KERNEL_OOPS (4) /* Kernel oops (fatal to thread) */
|
|
#define _NANO_ERR_KERNEL_PANIC (5) /* Kernel panic (fatal to system) */
|
|
|
|
|
|
/*
|
|
* the exception caused by kernel will be handled in interrupt context
|
|
* when the processor is already in interrupt context, no need to raise
|
|
* a new exception; when the processor is in thread context, the exception
|
|
* will be raised
|
|
*/
|
|
#define _ARCH_EXCEPT(reason_p) do { \
|
|
if (_arc_v2_irq_unit_is_in_isr()) { \
|
|
printk("@ %s:%d:\n", __FILE__, __LINE__); \
|
|
_NanoFatalErrorHandler(reason_p, 0); \
|
|
} else {\
|
|
__asm__ volatile ( \
|
|
"mov r0, %[reason]\n\t" \
|
|
"trap_s %[id]\n\t" \
|
|
: \
|
|
: [reason] "i" (reason_p), \
|
|
[id] "i" (_TRAP_S_CALL_RUNTIME_EXCEPT) \
|
|
: "memory"); \
|
|
CODE_UNREACHABLE; \
|
|
} \
|
|
} while (0)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* _ARCH_ARC_V2_ERROR_H_ */
|