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m241Neelima/vxworks-6.9/target/h/arch/arm/arm-m/esfArm-m.h
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2026-07-30 11:19:44 +05:30

58 lines
1.3 KiB
C

/* esfArm-m.h - ARM exception stack frames */
/*
* Copyright (c) 2012 Wind River Systems, Inc.
*
* The right to copy, distribute, modify or otherwise make use
* of this software may be licensed only pursuant to the terms
* of an applicable Wind River license agreement.
*/
/*
modification history
--------------------
01c,10may12,j_b fix tabs/spacing
01b,03may12,j_b replace "-" in filename include macro
01a,03apr12,j_b created from target/h/arch/arm/esfArm.f version 01b
*/
#ifndef __INCesfArm_mh
#define __INCesfArm_mh
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ASMLANGUAGE
/*
* The Exception Stack Frame
* On ARMv7-M, this is faked by a stub and the pointer
* passed back points to the PC and PSR at the end of the
* register structure. If that changes, so must this.
*
* I.E., REG_SET struct & ESF struct 'overlap' on last 4
* elements of REG_SET (pc, psr, primask and basepri).
*/
typedef struct
{
INSTR *pc; /* program counter */
ULONG psr; /* combined A/I/E PSR */
ULONG basepri; /* BASEPRI */
ULONG demcr; /* MON_STEP in DEMCR */
ULONG primask; /* PRIMASK */
ULONG faultmask; /* FAULTMASK */
ULONG control; /* CONTROL */
UINT32 vecNum; /* exception number */
} ESF;
#endif /* _ASMLANGUAGE */
#ifdef __cplusplus
}
#endif
#endif /* __INCesfArm_mh */