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// SPDX-License-Identifier: GPL-2.0
// Copyright (C) 2005-2017 Andes Technology Corporation
#ifndef _ASMNDS32_SIGCONTEXT_H
#define _ASMNDS32_SIGCONTEXT_H
/*
* Signal context structure - contains all info to do with the state
* before the signal handler was invoked. Note: only add new entries
* to the end of the structure.
*/
struct fpu_struct {
unsigned long long fd_regs[32];
unsigned long fpcsr;
/*
* UDF_trap is used to recognize whether underflow trap is enabled
* or not. When UDF_trap == 1, this process will be traped and then
* get a SIGFPE signal when encountering an underflow exception.
* UDF_trap is only modified through setfputrap syscall. Therefore,
* UDF_trap needn't be saved or loaded to context in each context
* switch.
*/
unsigned long UDF_trap;
};
struct zol_struct {
unsigned long nds32_lc; /* $LC */
unsigned long nds32_le; /* $LE */
unsigned long nds32_lb; /* $LB */
};
struct sigcontext {
unsigned long trap_no;
unsigned long error_code;
unsigned long oldmask;
unsigned long nds32_r0;
unsigned long nds32_r1;
unsigned long nds32_r2;
unsigned long nds32_r3;
unsigned long nds32_r4;
unsigned long nds32_r5;
unsigned long nds32_r6;
unsigned long nds32_r7;
unsigned long nds32_r8;
unsigned long nds32_r9;
unsigned long nds32_r10;
unsigned long nds32_r11;
unsigned long nds32_r12;
unsigned long nds32_r13;
unsigned long nds32_r14;
unsigned long nds32_r15;
unsigned long nds32_r16;
unsigned long nds32_r17;
unsigned long nds32_r18;
unsigned long nds32_r19;
unsigned long nds32_r20;
unsigned long nds32_r21;
unsigned long nds32_r22;
unsigned long nds32_r23;
unsigned long nds32_r24;
unsigned long nds32_r25;
unsigned long nds32_fp; /* $r28 */
unsigned long nds32_gp; /* $r29 */
unsigned long nds32_lp; /* $r30 */
unsigned long nds32_sp; /* $r31 */
unsigned long nds32_ipc;
unsigned long fault_address;
unsigned long used_math_flag;
/* FPU Registers */
struct fpu_struct fpu;
struct zol_struct zol;
};
#endif
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