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https://github.com/edk2-porting/linux-next.git
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fa1e1bdf78
Rename user_mode to user_mode_vm and add a user_mode macro similar to the x86-64 one. This is useful for Xen because the linux xen kernel does not runs on the same priviledge that a vanilla linux kernel, and with this we just need to redefine user_mode(). Signed-off-by: Vincent Hanquez <vincent.hanquez@cl.cam.ac.uk> Cc: Ian Pratt <m+Ian.Pratt@cl.cam.ac.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
71 lines
1.5 KiB
C
71 lines
1.5 KiB
C
#ifndef _I386_PTRACE_H
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#define _I386_PTRACE_H
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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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/* this struct defines the way the registers are stored on the
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stack during a system call. */
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struct pt_regs {
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long ebx;
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long ecx;
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long edx;
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long esi;
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long edi;
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long ebp;
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long eax;
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int xds;
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int xes;
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long orig_eax;
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long eip;
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int xcs;
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long eflags;
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long esp;
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int xss;
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};
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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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#define PTRACE_GET_THREAD_AREA 25
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#define PTRACE_SET_THREAD_AREA 26
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#ifdef __KERNEL__
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struct task_struct;
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extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code);
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#define user_mode(regs) (3 & (regs)->xcs)
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#define user_mode_vm(regs) ((VM_MASK & (regs)->eflags) || user_mode(regs))
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#define instruction_pointer(regs) ((regs)->eip)
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#if defined(CONFIG_SMP) && defined(CONFIG_FRAME_POINTER)
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extern unsigned long profile_pc(struct pt_regs *regs);
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#else
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#define profile_pc(regs) instruction_pointer(regs)
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#endif
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#endif
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#endif
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