b3f827cb0f
Add the regs_return_value() macro to extract the return value in an architecture agnostic manner, given the pt_regs. Other architecture maintainers may want to add similar helpers. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
#ifndef _X86_64_PTRACE_H
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#define _X86_64_PTRACE_H
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#include <asm/ptrace-abi.h>
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#ifndef __ASSEMBLY__
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struct pt_regs {
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unsigned long r15;
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unsigned long r14;
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unsigned long r13;
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unsigned long r12;
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unsigned long rbp;
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unsigned long rbx;
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/* arguments: non interrupts/non tracing syscalls only save upto here*/
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unsigned long r11;
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unsigned long r10;
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unsigned long r9;
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unsigned long r8;
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unsigned long rax;
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unsigned long rcx;
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unsigned long rdx;
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unsigned long rsi;
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unsigned long rdi;
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unsigned long orig_rax;
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/* end of arguments */
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/* cpu exception frame or undefined */
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unsigned long rip;
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unsigned long cs;
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unsigned long eflags;
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unsigned long rsp;
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unsigned long ss;
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/* top of stack page */
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};
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#endif
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#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
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#define user_mode(regs) (!!((regs)->cs & 3))
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#define user_mode_vm(regs) user_mode(regs)
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#define instruction_pointer(regs) ((regs)->rip)
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#define regs_return_value(regs) ((regs)->rax)
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extern unsigned long profile_pc(struct pt_regs *regs);
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void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
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struct task_struct;
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extern unsigned long
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convert_rip_to_linear(struct task_struct *child, struct pt_regs *regs);
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enum {
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EF_CF = 0x00000001,
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EF_PF = 0x00000004,
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EF_AF = 0x00000010,
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EF_ZF = 0x00000040,
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EF_SF = 0x00000080,
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EF_TF = 0x00000100,
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EF_IE = 0x00000200,
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EF_DF = 0x00000400,
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EF_OF = 0x00000800,
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EF_IOPL = 0x00003000,
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EF_IOPL_RING0 = 0x00000000,
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EF_IOPL_RING1 = 0x00001000,
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EF_IOPL_RING2 = 0x00002000,
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EF_NT = 0x00004000, /* nested task */
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EF_RF = 0x00010000, /* resume */
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EF_VM = 0x00020000, /* virtual mode */
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EF_AC = 0x00040000, /* alignment */
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EF_VIF = 0x00080000, /* virtual interrupt */
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EF_VIP = 0x00100000, /* virtual interrupt pending */
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EF_ID = 0x00200000, /* id */
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};
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#endif
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#endif
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