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458 lines
11 KiB
458 lines
11 KiB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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/* |
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* S390 version |
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* Copyright IBM Corp. 1999, 2000 |
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* Author(s): Denis Joseph Barrow ([email protected],[email protected]) |
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*/ |
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#ifndef _UAPI_S390_PTRACE_H |
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#define _UAPI_S390_PTRACE_H |
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/* |
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* Offsets in the user_regs_struct. They are used for the ptrace |
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* system call and in entry.S |
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*/ |
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#ifndef __s390x__ |
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#define PT_PSWMASK 0x00 |
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#define PT_PSWADDR 0x04 |
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#define PT_GPR0 0x08 |
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#define PT_GPR1 0x0C |
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#define PT_GPR2 0x10 |
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#define PT_GPR3 0x14 |
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#define PT_GPR4 0x18 |
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#define PT_GPR5 0x1C |
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#define PT_GPR6 0x20 |
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#define PT_GPR7 0x24 |
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#define PT_GPR8 0x28 |
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#define PT_GPR9 0x2C |
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#define PT_GPR10 0x30 |
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#define PT_GPR11 0x34 |
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#define PT_GPR12 0x38 |
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#define PT_GPR13 0x3C |
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#define PT_GPR14 0x40 |
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#define PT_GPR15 0x44 |
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#define PT_ACR0 0x48 |
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#define PT_ACR1 0x4C |
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#define PT_ACR2 0x50 |
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#define PT_ACR3 0x54 |
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#define PT_ACR4 0x58 |
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#define PT_ACR5 0x5C |
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#define PT_ACR6 0x60 |
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#define PT_ACR7 0x64 |
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#define PT_ACR8 0x68 |
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#define PT_ACR9 0x6C |
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#define PT_ACR10 0x70 |
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#define PT_ACR11 0x74 |
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#define PT_ACR12 0x78 |
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#define PT_ACR13 0x7C |
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#define PT_ACR14 0x80 |
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#define PT_ACR15 0x84 |
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#define PT_ORIGGPR2 0x88 |
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#define PT_FPC 0x90 |
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/* |
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* A nasty fact of life that the ptrace api |
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* only supports passing of longs. |
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*/ |
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#define PT_FPR0_HI 0x98 |
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#define PT_FPR0_LO 0x9C |
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#define PT_FPR1_HI 0xA0 |
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#define PT_FPR1_LO 0xA4 |
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#define PT_FPR2_HI 0xA8 |
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#define PT_FPR2_LO 0xAC |
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#define PT_FPR3_HI 0xB0 |
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#define PT_FPR3_LO 0xB4 |
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#define PT_FPR4_HI 0xB8 |
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#define PT_FPR4_LO 0xBC |
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#define PT_FPR5_HI 0xC0 |
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#define PT_FPR5_LO 0xC4 |
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#define PT_FPR6_HI 0xC8 |
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#define PT_FPR6_LO 0xCC |
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#define PT_FPR7_HI 0xD0 |
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#define PT_FPR7_LO 0xD4 |
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#define PT_FPR8_HI 0xD8 |
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#define PT_FPR8_LO 0XDC |
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#define PT_FPR9_HI 0xE0 |
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#define PT_FPR9_LO 0xE4 |
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#define PT_FPR10_HI 0xE8 |
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#define PT_FPR10_LO 0xEC |
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#define PT_FPR11_HI 0xF0 |
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#define PT_FPR11_LO 0xF4 |
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#define PT_FPR12_HI 0xF8 |
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#define PT_FPR12_LO 0xFC |
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#define PT_FPR13_HI 0x100 |
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#define PT_FPR13_LO 0x104 |
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#define PT_FPR14_HI 0x108 |
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#define PT_FPR14_LO 0x10C |
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#define PT_FPR15_HI 0x110 |
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#define PT_FPR15_LO 0x114 |
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#define PT_CR_9 0x118 |
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#define PT_CR_10 0x11C |
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#define PT_CR_11 0x120 |
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#define PT_IEEE_IP 0x13C |
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#define PT_LASTOFF PT_IEEE_IP |
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#define PT_ENDREGS 0x140-1 |
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#define GPR_SIZE 4 |
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#define CR_SIZE 4 |
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#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */ |
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#else /* __s390x__ */ |
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#define PT_PSWMASK 0x00 |
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#define PT_PSWADDR 0x08 |
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#define PT_GPR0 0x10 |
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#define PT_GPR1 0x18 |
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#define PT_GPR2 0x20 |
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#define PT_GPR3 0x28 |
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#define PT_GPR4 0x30 |
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#define PT_GPR5 0x38 |
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#define PT_GPR6 0x40 |
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#define PT_GPR7 0x48 |
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#define PT_GPR8 0x50 |
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#define PT_GPR9 0x58 |
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#define PT_GPR10 0x60 |
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#define PT_GPR11 0x68 |
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#define PT_GPR12 0x70 |
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#define PT_GPR13 0x78 |
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#define PT_GPR14 0x80 |
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#define PT_GPR15 0x88 |
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#define PT_ACR0 0x90 |
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#define PT_ACR1 0x94 |
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#define PT_ACR2 0x98 |
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#define PT_ACR3 0x9C |
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#define PT_ACR4 0xA0 |
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#define PT_ACR5 0xA4 |
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#define PT_ACR6 0xA8 |
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#define PT_ACR7 0xAC |
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#define PT_ACR8 0xB0 |
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#define PT_ACR9 0xB4 |
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#define PT_ACR10 0xB8 |
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#define PT_ACR11 0xBC |
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#define PT_ACR12 0xC0 |
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#define PT_ACR13 0xC4 |
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#define PT_ACR14 0xC8 |
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#define PT_ACR15 0xCC |
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#define PT_ORIGGPR2 0xD0 |
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#define PT_FPC 0xD8 |
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#define PT_FPR0 0xE0 |
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#define PT_FPR1 0xE8 |
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#define PT_FPR2 0xF0 |
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#define PT_FPR3 0xF8 |
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#define PT_FPR4 0x100 |
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#define PT_FPR5 0x108 |
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#define PT_FPR6 0x110 |
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#define PT_FPR7 0x118 |
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#define PT_FPR8 0x120 |
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#define PT_FPR9 0x128 |
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#define PT_FPR10 0x130 |
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#define PT_FPR11 0x138 |
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#define PT_FPR12 0x140 |
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#define PT_FPR13 0x148 |
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#define PT_FPR14 0x150 |
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#define PT_FPR15 0x158 |
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#define PT_CR_9 0x160 |
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#define PT_CR_10 0x168 |
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#define PT_CR_11 0x170 |
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#define PT_IEEE_IP 0x1A8 |
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#define PT_LASTOFF PT_IEEE_IP |
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#define PT_ENDREGS 0x1B0-1 |
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#define GPR_SIZE 8 |
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#define CR_SIZE 8 |
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#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */ |
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#endif /* __s390x__ */ |
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#define NUM_GPRS 16 |
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#define NUM_FPRS 16 |
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#define NUM_CRS 16 |
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#define NUM_ACRS 16 |
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#define NUM_CR_WORDS 3 |
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#define FPR_SIZE 8 |
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#define FPC_SIZE 4 |
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#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */ |
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#define ACR_SIZE 4 |
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#define PTRACE_OLDSETOPTIONS 21 |
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#define PTRACE_SYSEMU 31 |
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#define PTRACE_SYSEMU_SINGLESTEP 32 |
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#ifndef __ASSEMBLY__ |
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#include <linux/stddef.h> |
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#include <linux/types.h> |
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typedef union { |
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float f; |
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double d; |
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__u64 ui; |
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struct |
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{ |
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__u32 hi; |
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__u32 lo; |
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} fp; |
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} freg_t; |
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typedef struct { |
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__u32 fpc; |
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__u32 pad; |
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freg_t fprs[NUM_FPRS]; |
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} s390_fp_regs; |
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#define FPC_EXCEPTION_MASK 0xF8000000 |
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#define FPC_FLAGS_MASK 0x00F80000 |
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#define FPC_DXC_MASK 0x0000FF00 |
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#define FPC_RM_MASK 0x00000003 |
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/* this typedef defines how a Program Status Word looks like */ |
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typedef struct { |
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unsigned long mask; |
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unsigned long addr; |
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} __attribute__ ((aligned(8))) psw_t; |
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#ifndef __s390x__ |
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#define PSW_MASK_PER 0x40000000UL |
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#define PSW_MASK_DAT 0x04000000UL |
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#define PSW_MASK_IO 0x02000000UL |
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#define PSW_MASK_EXT 0x01000000UL |
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#define PSW_MASK_KEY 0x00F00000UL |
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#define PSW_MASK_BASE 0x00080000UL /* always one */ |
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#define PSW_MASK_MCHECK 0x00040000UL |
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#define PSW_MASK_WAIT 0x00020000UL |
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#define PSW_MASK_PSTATE 0x00010000UL |
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#define PSW_MASK_ASC 0x0000C000UL |
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#define PSW_MASK_CC 0x00003000UL |
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#define PSW_MASK_PM 0x00000F00UL |
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#define PSW_MASK_RI 0x00000000UL |
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#define PSW_MASK_EA 0x00000000UL |
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#define PSW_MASK_BA 0x00000000UL |
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#define PSW_MASK_USER 0x0000FF00UL |
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#define PSW_ADDR_AMODE 0x80000000UL |
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#define PSW_ADDR_INSN 0x7FFFFFFFUL |
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#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 20) |
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#define PSW_ASC_PRIMARY 0x00000000UL |
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#define PSW_ASC_ACCREG 0x00004000UL |
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#define PSW_ASC_SECONDARY 0x00008000UL |
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#define PSW_ASC_HOME 0x0000C000UL |
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#else /* __s390x__ */ |
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#define PSW_MASK_PER 0x4000000000000000UL |
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#define PSW_MASK_DAT 0x0400000000000000UL |
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#define PSW_MASK_IO 0x0200000000000000UL |
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#define PSW_MASK_EXT 0x0100000000000000UL |
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#define PSW_MASK_BASE 0x0000000000000000UL |
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#define PSW_MASK_KEY 0x00F0000000000000UL |
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#define PSW_MASK_MCHECK 0x0004000000000000UL |
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#define PSW_MASK_WAIT 0x0002000000000000UL |
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#define PSW_MASK_PSTATE 0x0001000000000000UL |
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#define PSW_MASK_ASC 0x0000C00000000000UL |
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#define PSW_MASK_CC 0x0000300000000000UL |
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#define PSW_MASK_PM 0x00000F0000000000UL |
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#define PSW_MASK_RI 0x0000008000000000UL |
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#define PSW_MASK_EA 0x0000000100000000UL |
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#define PSW_MASK_BA 0x0000000080000000UL |
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#define PSW_MASK_USER 0x0000FF0180000000UL |
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#define PSW_ADDR_AMODE 0x0000000000000000UL |
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#define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL |
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#define PSW_DEFAULT_KEY (((unsigned long) PAGE_DEFAULT_ACC) << 52) |
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#define PSW_ASC_PRIMARY 0x0000000000000000UL |
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#define PSW_ASC_ACCREG 0x0000400000000000UL |
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#define PSW_ASC_SECONDARY 0x0000800000000000UL |
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#define PSW_ASC_HOME 0x0000C00000000000UL |
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#endif /* __s390x__ */ |
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/* |
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* The s390_regs structure is used to define the elf_gregset_t. |
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*/ |
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typedef struct { |
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psw_t psw; |
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unsigned long gprs[NUM_GPRS]; |
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unsigned int acrs[NUM_ACRS]; |
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unsigned long orig_gpr2; |
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} s390_regs; |
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/* |
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* The user_pt_regs structure exports the beginning of |
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* the in-kernel pt_regs structure to user space. |
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*/ |
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typedef struct { |
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unsigned long args[1]; |
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psw_t psw; |
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unsigned long gprs[NUM_GPRS]; |
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} user_pt_regs; |
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/* |
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* Now for the user space program event recording (trace) definitions. |
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* The following structures are used only for the ptrace interface, don't |
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* touch or even look at it if you don't want to modify the user-space |
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* ptrace interface. In particular stay away from it for in-kernel PER. |
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*/ |
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typedef struct { |
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unsigned long cr[NUM_CR_WORDS]; |
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} per_cr_words; |
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#define PER_EM_MASK 0xE8000000UL |
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typedef struct { |
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#ifdef __s390x__ |
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unsigned : 32; |
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#endif /* __s390x__ */ |
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unsigned em_branching : 1; |
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unsigned em_instruction_fetch : 1; |
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/* |
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* Switching on storage alteration automatically fixes |
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* the storage alteration event bit in the users std. |
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*/ |
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unsigned em_storage_alteration : 1; |
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unsigned em_gpr_alt_unused : 1; |
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unsigned em_store_real_address : 1; |
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unsigned : 3; |
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unsigned branch_addr_ctl : 1; |
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unsigned : 1; |
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unsigned storage_alt_space_ctl : 1; |
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unsigned : 21; |
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unsigned long starting_addr; |
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unsigned long ending_addr; |
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} per_cr_bits; |
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typedef struct { |
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unsigned short perc_atmid; |
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unsigned long address; |
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unsigned char access_id; |
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} per_lowcore_words; |
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typedef struct { |
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unsigned perc_branching : 1; |
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unsigned perc_instruction_fetch : 1; |
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unsigned perc_storage_alteration : 1; |
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unsigned perc_gpr_alt_unused : 1; |
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unsigned perc_store_real_address : 1; |
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unsigned : 3; |
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unsigned atmid_psw_bit_31 : 1; |
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unsigned atmid_validity_bit : 1; |
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unsigned atmid_psw_bit_32 : 1; |
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unsigned atmid_psw_bit_5 : 1; |
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unsigned atmid_psw_bit_16 : 1; |
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unsigned atmid_psw_bit_17 : 1; |
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unsigned si : 2; |
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unsigned long address; |
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unsigned : 4; |
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unsigned access_id : 4; |
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} per_lowcore_bits; |
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typedef struct { |
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union { |
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per_cr_words words; |
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per_cr_bits bits; |
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} control_regs; |
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/* |
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* The single_step and instruction_fetch bits are obsolete, |
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* the kernel always sets them to zero. To enable single |
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* stepping use ptrace(PTRACE_SINGLESTEP) instead. |
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*/ |
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unsigned single_step : 1; |
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unsigned instruction_fetch : 1; |
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unsigned : 30; |
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/* |
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* These addresses are copied into cr10 & cr11 if single |
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* stepping is switched off |
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*/ |
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unsigned long starting_addr; |
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unsigned long ending_addr; |
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union { |
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per_lowcore_words words; |
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per_lowcore_bits bits; |
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} lowcore; |
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} per_struct; |
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typedef struct { |
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unsigned int len; |
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unsigned long kernel_addr; |
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unsigned long process_addr; |
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} ptrace_area; |
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/* |
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* S/390 specific non posix ptrace requests. I chose unusual values so |
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* they are unlikely to clash with future ptrace definitions. |
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*/ |
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#define PTRACE_PEEKUSR_AREA 0x5000 |
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#define PTRACE_POKEUSR_AREA 0x5001 |
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#define PTRACE_PEEKTEXT_AREA 0x5002 |
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#define PTRACE_PEEKDATA_AREA 0x5003 |
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#define PTRACE_POKETEXT_AREA 0x5004 |
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#define PTRACE_POKEDATA_AREA 0x5005 |
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#define PTRACE_GET_LAST_BREAK 0x5006 |
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#define PTRACE_PEEK_SYSTEM_CALL 0x5007 |
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#define PTRACE_POKE_SYSTEM_CALL 0x5008 |
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#define PTRACE_ENABLE_TE 0x5009 |
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#define PTRACE_DISABLE_TE 0x5010 |
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#define PTRACE_TE_ABORT_RAND 0x5011 |
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/* |
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* The numbers chosen here are somewhat arbitrary but absolutely MUST |
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* not overlap with any of the number assigned in <linux/ptrace.h>. |
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*/ |
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#define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ |
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/* |
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* PT_PROT definition is loosely based on hppa bsd definition in |
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* gdb/hppab-nat.c |
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*/ |
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#define PTRACE_PROT 21 |
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typedef enum { |
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ptprot_set_access_watchpoint, |
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ptprot_set_write_watchpoint, |
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ptprot_disable_watchpoint |
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} ptprot_flags; |
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typedef struct { |
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unsigned long lowaddr; |
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unsigned long hiaddr; |
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ptprot_flags prot; |
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} ptprot_area; |
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/* Sequence of bytes for breakpoint illegal instruction. */ |
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#define S390_BREAKPOINT {0x0,0x1} |
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#define S390_BREAKPOINT_U16 ((__u16)0x0001) |
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#define S390_SYSCALL_OPCODE ((__u16)0x0a00) |
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#define S390_SYSCALL_SIZE 2 |
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/* |
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* The user_regs_struct defines the way the user registers are |
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* store on the stack for signal handling. |
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*/ |
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struct user_regs_struct { |
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psw_t psw; |
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unsigned long gprs[NUM_GPRS]; |
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unsigned int acrs[NUM_ACRS]; |
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unsigned long orig_gpr2; |
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s390_fp_regs fp_regs; |
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/* |
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* These per registers are in here so that gdb can modify them |
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* itself as there is no "official" ptrace interface for hardware |
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* watchpoints. This is the way intel does it. |
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*/ |
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per_struct per_info; |
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unsigned long ieee_instruction_pointer; /* obsolete, always 0 */ |
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}; |
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#endif /* __ASSEMBLY__ */ |
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#endif /* _UAPI_S390_PTRACE_H */
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