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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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eee3af4a2c
Resend using different mail client Changes to the last version: - split implementation into two layers: ds/bts and ptrace - renamed TIF's - save/restore ds save area msr in __switch_to_xtra() - make block-stepping only look at BTF bit Signed-off-by: Markus Metzger <markus.t.metzger@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
#ifndef _ASM_X86_PTRACE_ABI_H
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#define _ASM_X86_PTRACE_ABI_H
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#ifdef __i386__
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#define EBX 0
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#define ECX 1
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#define EDX 2
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#define ESI 3
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#define EDI 4
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#define EBP 5
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#define EAX 6
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#define DS 7
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#define ES 8
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#define FS 9
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#define GS 10
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#define ORIG_EAX 11
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#define EIP 12
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#define CS 13
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#define EFL 14
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#define UESP 15
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#define SS 16
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#define FRAME_SIZE 17
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#else /* __i386__ */
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#if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS)
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#define R15 0
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#define R14 8
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#define R13 16
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#define R12 24
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#define RBP 32
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#define RBX 40
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/* arguments: interrupts/non tracing syscalls only save upto here*/
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#define R11 48
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#define R10 56
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#define R9 64
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#define R8 72
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#define RAX 80
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#define RCX 88
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#define RDX 96
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#define RSI 104
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#define RDI 112
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#define ORIG_RAX 120 /* = ERROR */
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/* end of arguments */
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/* cpu exception frame or undefined in case of fast syscall. */
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#define RIP 128
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#define CS 136
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#define EFLAGS 144
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#define RSP 152
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#define SS 160
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#define ARGOFFSET R11
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#endif /* __ASSEMBLY__ */
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/* top of stack page */
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#define FRAME_SIZE 168
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#endif /* !__i386__ */
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/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
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#define PTRACE_GETREGS 12
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#define PTRACE_SETREGS 13
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#define PTRACE_GETFPREGS 14
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#define PTRACE_SETFPREGS 15
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#define PTRACE_GETFPXREGS 18
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#define PTRACE_SETFPXREGS 19
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#define PTRACE_OLDSETOPTIONS 21
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/* only useful for access 32bit programs / kernels */
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#define PTRACE_GET_THREAD_AREA 25
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#define PTRACE_SET_THREAD_AREA 26
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#ifdef __x86_64__
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# define PTRACE_ARCH_PRCTL 30
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#else
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# define PTRACE_SYSEMU 31
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# define PTRACE_SYSEMU_SINGLESTEP 32
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#endif
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#define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */
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/* Return maximal BTS buffer size in number of records,
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if successuf; -1, otherwise.
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EOPNOTSUPP...processor does not support bts tracing */
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#define PTRACE_BTS_MAX_BUFFER_SIZE 40
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/* Allocate new bts buffer (free old one, if exists) of size DATA bts records;
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parameter ADDR is ignored.
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Return 0, if successful; -1, otherwise.
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EOPNOTSUPP...processor does not support bts tracing
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EINVAL.......invalid size in records
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ENOMEM.......out of memory */
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#define PTRACE_BTS_ALLOCATE_BUFFER 41
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/* Return the size of the bts buffer in number of bts records,
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if successful; -1, otherwise.
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EOPNOTSUPP...processor does not support bts tracing
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ENXIO........no buffer allocated */
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#define PTRACE_BTS_GET_BUFFER_SIZE 42
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/* Return the index of the next bts record to be written,
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if successful; -1, otherwise.
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EOPNOTSUPP...processor does not support bts tracing
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ENXIO........no buffer allocated
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After the first warp-around, this is the start of the circular bts buffer. */
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#define PTRACE_BTS_GET_INDEX 43
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/* Read the DATA'th bts record into a ptrace_bts_record buffer provided in ADDR.
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Return 0, if successful; -1, otherwise
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EOPNOTSUPP...processor does not support bts tracing
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ENXIO........no buffer allocated
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EINVAL.......invalid index */
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#define PTRACE_BTS_READ_RECORD 44
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/* Configure last branch trace; the configuration is given as a bit-mask of
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PTRACE_BTS_O_* options in DATA; parameter ADDR is ignored.
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Return 0, if successful; -1, otherwise
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EOPNOTSUPP...processor does not support bts tracing
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ENXIO........no buffer allocated */
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#define PTRACE_BTS_CONFIG 45
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/* Return the configuration as bit-mask of PTRACE_BTS_O_* options
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if successful; -1, otherwise.
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EOPNOTSUPP...processor does not support bts tracing
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ENXIO........no buffer allocated */
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#define PTRACE_BTS_STATUS 46
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/* Trace configuration options */
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/* Collect last branch trace */
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#define PTRACE_BTS_O_TRACE_TASK 0x1
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/* Take timestamps when the task arrives and departs */
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#define PTRACE_BTS_O_TIMESTAMPS 0x2
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#endif
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