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/*
 * linux/arch/unicore32/include/asm/ptrace.h
 *
 * Code specific to PKUnity SoC and UniCore ISA
 *
 * Copyright (C) 2001-2010 GUAN Xue-tao
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#ifndef __UNICORE_PTRACE_H__
#define __UNICORE_PTRACE_H__

#include <uapi/asm/ptrace.h>

#ifndef __ASSEMBLY__

#define user_mode(regs)	\
	(processor_mode(regs) == USER_MODE)

#define processor_mode(regs) \
	((regs)->UCreg_asr & MODE_MASK)

#define interrupts_enabled(regs) \
	(!((regs)->UCreg_asr & PSR_I_BIT))

#define fast_interrupts_enabled(regs) \
	(!((regs)->UCreg_asr & PSR_R_BIT))

/* Are the current registers suitable for user mode?
 * (used to maintain security in signal handlers)
 */
static inline int valid_user_regs(struct pt_regs *regs)
{
	unsigned long mode = regs->UCreg_asr & MODE_MASK;

	/*
	 * Always clear the R (REAL) bits
	 */
	regs->UCreg_asr &= ~(PSR_R_BIT);

	if ((regs->UCreg_asr & PSR_I_BIT) == 0) {
		if (mode == USER_MODE)
			return 1;
	}

	/*
	 * Force ASR to something logical...
	 */
	regs->UCreg_asr &= PSR_f | USER_MODE;

	return 0;
}

#define instruction_pointer(regs)	((regs)->UCreg_pc)
#define user_stack_pointer(regs)	((regs)->UCreg_sp)
#define profile_pc(regs)		instruction_pointer(regs)

#endif /* __ASSEMBLY__ */
#endif

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Name Type Size Permission Actions
Kbuild File 877 B 0644
assembler.h File 2.71 KB 0644
barrier.h File 602 B 0644
bitops.h File 1.19 KB 0644
bug.h File 632 B 0644
cache.h File 805 B 0644
cacheflush.h File 6.46 KB 0644
checksum.h File 978 B 0644
cmpxchg.h File 1.43 KB 0644
cpu-single.h File 1.18 KB 0644
cputype.h File 787 B 0644
delay.h File 1.53 KB 0644
dma-mapping.h File 1.11 KB 0644
dma.h File 531 B 0644
elf.h File 2.58 KB 0644
fpstate.h File 550 B 0644
fpu-ucf64.h File 1.32 KB 0644
gpio.h File 2.75 KB 0644
hwcap.h File 773 B 0644
hwdef-copro.h File 1.3 KB 0644
io.h File 2 KB 0644
irq.h File 2.56 KB 0644
irqflags.h File 1.03 KB 0644
linkage.h File 524 B 0644
memblock.h File 1.1 KB 0644
memory.h File 3.16 KB 0644
mmu.h File 430 B 0644
mmu_context.h File 2.76 KB 0644
page.h File 1.89 KB 0644
pci.h File 578 B 0644
pgalloc.h File 2.47 KB 0644
pgtable-hwdef.h File 1.3 KB 0644
pgtable.h File 9.42 KB 0644
processor.h File 1.98 KB 0644
ptrace.h File 1.37 KB 0644
stacktrace.h File 787 B 0644
string.h File 994 B 0644
suspend.h File 667 B 0644
switch_to.h File 901 B 0644
thread_info.h File 3.29 KB 0644
timex.h File 767 B 0644
tlb.h File 781 B 0644
tlbflush.h File 5.53 KB 0644
traps.h File 627 B 0644
uaccess.h File 1.33 KB 0644