/* * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) * * 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. * * Amit Bhor, Sameer Dhavale: Codito Technologies 2004 */ #ifndef __ASM_ARC_PTRACE_H #define __ASM_ARC_PTRACE_H #include <uapi/asm/ptrace.h> #ifndef __ASSEMBLY__ /* THE pt_regs: Defines how regs are saved during entry into kernel */ #ifdef CONFIG_ISA_ARCOMPACT struct pt_regs { #ifdef CONFIG_ARC_PLAT_EZNPS unsigned long eflags; /* Extended FLAGS */ unsigned long gpa1; /* General Purpose Aux */ #endif /* Real registers */ unsigned long bta; /* bta_l1, bta_l2, erbta */ unsigned long lp_start, lp_end, lp_count; unsigned long status32; /* status32_l1, status32_l2, erstatus */ unsigned long ret; /* ilink1, ilink2 or eret */ unsigned long blink; unsigned long fp; unsigned long r26; /* gp */ unsigned long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0; unsigned long sp; /* User/Kernel depending on where we came from */ unsigned long orig_r0; /* * To distinguish bet excp, syscall, irq * For traps and exceptions, Exception Cause Register. * ECR: <00> <VV> <CC> <PP> * Last word used by Linux for extra state mgmt (syscall-restart) * For interrupts, use artificial ECR values to note current prio-level */ union { struct { #ifdef CONFIG_CPU_BIG_ENDIAN unsigned long state:8, ecr_vec:8, ecr_cause:8, ecr_param:8; #else unsigned long ecr_param:8, ecr_cause:8, ecr_vec:8, state:8; #endif }; unsigned long event; }; unsigned long user_r25; }; #else struct pt_regs { unsigned long orig_r0; union { struct { #ifdef CONFIG_CPU_BIG_ENDIAN unsigned long state:8, ecr_vec:8, ecr_cause:8, ecr_param:8; #else unsigned long ecr_param:8, ecr_cause:8, ecr_vec:8, state:8; #endif }; unsigned long event; }; unsigned long bta; /* bta_l1, bta_l2, erbta */ unsigned long user_r25; unsigned long r26; /* gp */ unsigned long fp; unsigned long sp; /* user/kernel sp depending on where we came from */ unsigned long r12, r30; #ifdef CONFIG_ARC_HAS_ACCL_REGS unsigned long r58, r59; /* ACCL/ACCH used by FPU / DSP MPY */ #endif /*------- Below list auto saved by h/w -----------*/ unsigned long r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11; unsigned long blink; unsigned long lp_end, lp_start, lp_count; unsigned long ei, ldi, jli; unsigned long ret; unsigned long status32; }; #endif /* Callee saved registers - need to be saved only when you are scheduled out */ struct callee_regs { unsigned long r25, r24, r23, r22, r21, r20, r19, r18, r17, r16, r15, r14, r13; }; #define instruction_pointer(regs) ((regs)->ret) #define profile_pc(regs) instruction_pointer(regs) /* return 1 if user mode or 0 if kernel mode */ #define user_mode(regs) (regs->status32 & STATUS_U_MASK) #define user_stack_pointer(regs)\ ({ unsigned int sp; \ if (user_mode(regs)) \ sp = (regs)->sp;\ else \ sp = -1; \ sp; \ }) /* return 1 if PC in delay slot */ #define delay_mode(regs) ((regs->status32 & STATUS_DE_MASK) == STATUS_DE_MASK) #define in_syscall(regs) ((regs->ecr_vec == ECR_V_TRAP) && !regs->ecr_param) #define in_brkpt_trap(regs) ((regs->ecr_vec == ECR_V_TRAP) && regs->ecr_param) #define STATE_SCALL_RESTARTED 0x01 #define syscall_wont_restart(reg) (reg->state |= STATE_SCALL_RESTARTED) #define syscall_restartable(reg) !(reg->state & STATE_SCALL_RESTARTED) #define current_pt_regs() \ ({ \ /* open-coded current_thread_info() */ \ register unsigned long sp asm ("sp"); \ unsigned long pg_start = (sp & ~(THREAD_SIZE - 1)); \ (struct pt_regs *)(pg_start + THREAD_SIZE) - 1; \ }) static inline long regs_return_value(struct pt_regs *regs) { return (long)regs->r0; } #endif /* !__ASSEMBLY__ */ #endif /* __ASM_PTRACE_H */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 681 B | 0644 |
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arcregs.h | File | 8.59 KB | 0644 |
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asm-offsets.h | File | 311 B | 0644 |
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atomic.h | File | 15.14 KB | 0644 |
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barrier.h | File | 1.75 KB | 0644 |
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bitops.h | File | 9.81 KB | 0644 |
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bug.h | File | 938 B | 0644 |
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cache.h | File | 3.77 KB | 0644 |
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cacheflush.h | File | 3.88 KB | 0644 |
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checksum.h | File | 2.45 KB | 0644 |
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cmpxchg.h | File | 5.4 KB | 0644 |
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current.h | File | 695 B | 0644 |
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delay.h | File | 1.99 KB | 0644 |
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disasm.h | File | 3.87 KB | 0644 |
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dma-mapping.h | File | 734 B | 0644 |
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dma.h | File | 459 B | 0644 |
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dwarf.h | File | 892 B | 0644 |
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elf.h | File | 2.15 KB | 0644 |
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entry-arcv2.h | File | 4.85 KB | 0644 |
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entry-compact.h | File | 9.29 KB | 0644 |
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entry.h | File | 6.73 KB | 0644 |
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exec.h | File | 410 B | 0644 |
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fb.h | File | 411 B | 0644 |
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futex.h | File | 3.67 KB | 0644 |
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highmem.h | File | 1.46 KB | 0644 |
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hugepage.h | File | 2.41 KB | 0644 |
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io.h | File | 6.42 KB | 0644 |
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irq.h | File | 825 B | 0644 |
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irqflags-arcv2.h | File | 3.45 KB | 0644 |
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irqflags-compact.h | File | 4.25 KB | 0644 |
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irqflags.h | File | 509 B | 0644 |
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kdebug.h | File | 400 B | 0644 |
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kgdb.h | File | 1.35 KB | 0644 |
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kmap_types.h | File | 489 B | 0644 |
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kprobes.h | File | 1.37 KB | 0644 |
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linkage.h | File | 1.42 KB | 0644 |
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mach_desc.h | File | 2.06 KB | 0644 |
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mmu.h | File | 2.44 KB | 0644 |
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mmu_context.h | File | 5.67 KB | 0644 |
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mmzone.h | File | 989 B | 0644 |
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module.h | File | 661 B | 0644 |
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page.h | File | 2.99 KB | 0644 |
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pci.h | File | 705 B | 0644 |
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perf_event.h | File | 6.86 KB | 0644 |
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pgalloc.h | File | 3.79 KB | 0644 |
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pgtable.h | File | 14.2 KB | 0644 |
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processor.h | File | 4.69 KB | 0644 |
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ptrace.h | File | 3.87 KB | 0644 |
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sections.h | File | 407 B | 0644 |
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segment.h | File | 612 B | 0644 |
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serial.h | File | 644 B | 0644 |
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setup.h | File | 1.18 KB | 0644 |
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shmparam.h | File | 442 B | 0644 |
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smp.h | File | 4.25 KB | 0644 |
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spinlock.h | File | 8.79 KB | 0644 |
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spinlock_types.h | File | 1.03 KB | 0644 |
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stacktrace.h | File | 1.29 KB | 0644 |
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string.h | File | 1.15 KB | 0644 |
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switch_to.h | File | 1.17 KB | 0644 |
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syscall.h | File | 1.57 KB | 0644 |
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syscalls.h | File | 653 B | 0644 |
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thread_info.h | File | 3.39 KB | 0644 |
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timex.h | File | 508 B | 0644 |
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tlb-mmu1.h | File | 3.48 KB | 0644 |
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tlb.h | File | 1.23 KB | 0644 |
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tlbflush.h | File | 1.76 KB | 0644 |
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uaccess.h | File | 18.45 KB | 0644 |
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unaligned.h | File | 771 B | 0644 |
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unwind.h | File | 3.51 KB | 0644 |
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